-----------------------------------------------------------------------------
--- $Id: DriverFlags.hs,v 1.105 2002/10/17 14:26:17 simonmar Exp $
--
-- Driver flags
--
--- (c) Simon Marlow 2000
+-- (c) The University of Glasgow 2000-2003
--
-----------------------------------------------------------------------------
findArg spec arg
= case [ (remove_spaces rest, k)
| (pat,k) <- spec,
- Just rest <- [my_prefix_match pat arg],
+ Just rest <- [maybePrefixMatch pat arg],
arg_ok k rest arg ]
of
[] -> Nothing
, ( "-help" , NoArg showGhcUsage)
, ( "-print-libdir" , NoArg (do getTopDir >>= putStrLn
exitWith ExitSuccess))
- , ( "-version" , NoArg (do putStrLn (cProjectName
- ++ ", version " ++ cProjectVersion)
- exitWith ExitSuccess))
+ , ( "V" , NoArg showVersion)
+ , ( "-version" , NoArg showVersion)
, ( "-numeric-version", NoArg (do putStrLn cProjectVersion
exitWith ExitSuccess))
, ( "-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
------- 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) )
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 \
+ "warning: don't know how to split \
\object files on this architecture"
) )
------- Libraries ---------------------------------------------------
, ( "L" , Prefix (addToDirList v_Library_paths) )
- , ( "l" , Prefix (add v_Cmdline_libraries) )
+ , ( "l" , AnySuffix (\s -> add v_Opt_l s >> add v_Opt_dll s) )
#ifdef darwin_TARGET_OS
------- Frameworks --------------------------------------------------
, ( "syslib" , HasArg (addPackage) ) -- for compatibility w/ old vsns
------- Specific phases --------------------------------------------
+ , ( "pgmL" , HasArg setPgmL )
+ , ( "pgmP" , HasArg setPgmP )
, ( "pgmP" , HasArg setPgmP )
, ( "pgmF" , HasArg setPgmF )
, ( "pgmc" , HasArg setPgmc )
, ( "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
, ( "Rghc-timing" , NoArg (enableTimingStats) )
------ Compiler flags -----------------------------------------------
- , ( "O2-for-C" , NoArg (writeIORef v_minus_o2_for_C True) )
- , ( "O" , NoArg (setOptLevel 1))
- , ( "Onot" , NoArg (setOptLevel 0))
- , ( "O" , PrefixPred (all isDigit) (setOptLevel . read))
-
, ( "fno-asm-mangling" , NoArg (writeIORef v_Do_asm_mangling False) )
- , ( "fmax-simplifier-iterations",
- Prefix (writeIORef v_MaxSimplifierIterations . read) )
-
- , ( "frule-check",
- SepArg (\s -> writeIORef v_RuleCheck (Just s)) )
-
- , ( "fusagesp" , NoArg (do writeIORef v_UsageSPInf True
- add v_Opt_C "-fusagesp-on") )
-
, ( "fexcess-precision" , NoArg (do writeIORef v_Excess_precision True
add v_Opt_C "-fexcess-precision"))
- -- Optimisation flags are treated specially, so the normal
- -- -fno-* pattern below doesn't work. We therefore allow
- -- certain optimisation passes to be turned off explicitly:
- , ( "fno-strictness" , NoArg (writeIORef v_Strictness False) )
- , ( "fno-cse" , NoArg (writeIORef v_CSE False) )
-
-- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
, ( "fno-", PrefixPred (\s -> isStaticHscFlag ("f"++s))
(\s -> add v_Anti_opt_C ("-f"++s)) )
#endif
------ HsCpp opts ---------------------------------------------------
- -- With a C compiler whose system() doesn't use a UNIX shell (i.e.
- -- mingwin gcc), -D and -U args must *not* be quoted, as the quotes
- -- will be interpreted as part of the arguments, and not stripped;
- -- on all other systems, quoting is necessary, to avoid interpretation
- -- of shell metacharacters in the arguments (e.g. green-card's
- -- -DBEGIN_GHC_ONLY='}-' trick).
-#ifndef mingw32_HOST_OS
- , ( "D", Prefix (\s -> addOpt_P ("-D'"++s++"'") ) )
- , ( "U", Prefix (\s -> addOpt_P ("-U'"++s++"'") ) )
-#else
- , ( "D", Prefix (\s -> addOpt_P ("-D"++s) ) )
- , ( "U", Prefix (\s -> addOpt_P ("-U"++s) ) )
-#endif
+ , ( "D", AnySuffix addOpt_P )
+ , ( "U", AnySuffix addOpt_P )
------ Debugging ----------------------------------------------------
, ( "dstg-stats", NoArg (writeIORef v_StgStats True) )
, ( "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 (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-vect", NoArg (setDynFlag Opt_D_dump_vect) )
, ( "dcore-lint", NoArg (setDynFlag Opt_DoCoreLinting) )
, ( "dstg-lint", NoArg (setDynFlag Opt_DoStgLinting) )
- , ( "dusagesp-lint", NoArg (setDynFlag Opt_DoUSPLinting) )
------ Machine dependant (-m<blah>) stuff ---------------------------
------ 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) )
, ( "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",
( "warn-unused-imports", Opt_WarnUnusedImports ),
( "warn-unused-matches", Opt_WarnUnusedMatches ),
( "warn-deprecations", Opt_WarnDeprecations ),
- ( "glasgow-exts", Opt_GlasgowExts ),
( "fi", Opt_FFI ), -- support `-ffi'...
( "ffi", Opt_FFI ), -- ...and also `-fffi'
- ( "with", Opt_With ), -- with keyword
+ ( "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 )
+ ( "generics", Opt_Generics ),
+ ( "strictness", Opt_Strictness ),
+ ( "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)
opt_C_ <- getStaticOpts v_Opt_C -- misc hsc opts from the command line
- -- optimisation
- minus_o <- readIORef v_OptLevel
- let optimisation_opts =
- case minus_o of
- 0 -> hsc_minusNoO_flags
- 1 -> hsc_minusO_flags
- 2 -> hsc_minusO2_flags
- n -> throwDyn (CmdLineError ("unknown optimisation level: "
- ++ show n))
- -- ToDo: -Ofile
-
-- 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_ ++ optimisation_opts
+ let basic_opts = opt_C_
filtered_opts = filter (`notElem` anti_flags) basic_opts
static <- (do s <- readIORef v_Static; if s then return "-static"
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
return ( [ if sta then "-DDONT_WANT_WIN32_DLL_SUPPORT" else ""
-- , if suffixMatch "mingw32" cTARGETPLATFORM then "-mno-cygwin" else ""
],
- [ "-fno-defer-pop", "-fomit-frame-pointer",
+ [ "-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
| prefixMatch "ia64" cTARGETPLATFORM
= return ( [], ["-fomit-frame-pointer", "-G0"] )
+ | prefixMatch "x86_64" cTARGETPLATFORM
+ = return ( [], ["-fomit-frame-pointer"] )
+
| prefixMatch "mips" cTARGETPLATFORM
= return ( ["-static"], [] )
| otherwise = throwDyn (UsageError "can't parse verbosity flag (-v<n>)")
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