+{-# OPTIONS -fno-cse #-}
+-- -fno-cse is needed for GLOBAL_VAR's to behave properly
+
-----------------------------------------------------------------------------
--
-- Static flags
-----------------------------------------------------------------------------
module StaticFlags (
- parseStaticFlags,
staticFlags,
initStaticOpts,
opt_Unregisterised,
opt_EmitExternalCore,
v_Ld_inputs,
- tablesNextToCode
+ tablesNextToCode,
+
+ -- For the parser
+ addOpt, removeOpt, addWay, findBuildTag, v_opt_C_ready
) where
#include "HsVersions.h"
-import CmdLineParser
import Config
import FastString
import Util
import Maybes ( firstJust )
import Panic
-import Control.Exception ( throwDyn )
import Data.IORef
import System.IO.Unsafe ( unsafePerformIO )
-import Control.Monad ( when )
-import Data.Char ( isDigit )
import Data.List
-----------------------------------------------------------------------------
-- Static flags
-parseStaticFlags :: [String] -> IO ([String], [String])
-parseStaticFlags args = do
- ready <- readIORef v_opt_C_ready
- when ready $ throwDyn (ProgramError "Too late for parseStaticFlags: call it before newSession")
-
- (leftover, errs, warns1) <- processArgs static_flags args
- when (not (null errs)) $ throwDyn (UsageError (unlines errs))
-
- -- deal with the way flags: the way (eg. prof) gives rise to
- -- further flags, some of which might be static.
- way_flags <- findBuildTag
-
- -- if we're unregisterised, add some more flags
- let unreg_flags | cGhcUnregisterised == "YES" = unregFlags
- | otherwise = []
-
- (more_leftover, errs, warns2) <- processArgs static_flags (unreg_flags ++ way_flags)
-
- -- see sanity code in staticOpts
- writeIORef v_opt_C_ready True
-
- -- TABLES_NEXT_TO_CODE affects the info table layout.
- -- Be careful to do this *after* all processArgs,
- -- because evaluating tablesNextToCode involves looking at the global
- -- static flags. Those pesky global variables...
- let cg_flags | tablesNextToCode = ["-optc-DTABLES_NEXT_TO_CODE"]
- | otherwise = []
-
- -- HACK: -fexcess-precision is both a static and a dynamic flag. If
- -- the static flag parser has slurped it, we must return it as a
- -- leftover too. ToDo: make -fexcess-precision dynamic only.
- let excess_prec | opt_SimplExcessPrecision = ["-fexcess-precision"]
- | otherwise = []
-
- when (not (null errs)) $ ghcError (UsageError (unlines errs))
- return (excess_prec ++ cg_flags ++ more_leftover ++ leftover,
- warns1 ++ warns2)
-
initStaticOpts :: IO ()
initStaticOpts = writeIORef v_opt_C_ready True
-static_flags :: [Flag IO]
--- All the static flags should appear in this list. It describes how each
--- static flag should be processed. Two main purposes:
--- (a) if a command-line flag doesn't appear in the list, GHC can complain
--- (b) a command-line flag may remove, or add, other flags; e.g. the "-fno-X" things
---
--- The common (PassFlag addOpt) action puts the static flag into the bunch of
--- things that are searched up by the top-level definitions like
--- opt_foo = lookUp (fsLit "-dfoo")
-
--- 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 = [
- ------- GHCi -------------------------------------------------------
- Flag "ignore-dot-ghci" (PassFlag addOpt) Supported
- , Flag "read-dot-ghci" (NoArg (removeOpt "-ignore-dot-ghci")) Supported
-
- ------- ways --------------------------------------------------------
- , Flag "prof" (NoArg (addWay WayProf)) Supported
- , Flag "ticky" (NoArg (addWay WayTicky)) Supported
- , Flag "parallel" (NoArg (addWay WayPar)) Supported
- , Flag "gransim" (NoArg (addWay WayGran)) Supported
- , Flag "smp" (NoArg (addWay WayThreaded))
- (Deprecated "Use -threaded instead")
- , Flag "debug" (NoArg (addWay WayDebug)) Supported
- , Flag "ndp" (NoArg (addWay WayNDP)) Supported
- , Flag "threaded" (NoArg (addWay WayThreaded)) Supported
- -- ToDo: user ways
-
- ------ Debugging ----------------------------------------------------
- , Flag "dppr-debug" (PassFlag addOpt) Supported
- , Flag "dsuppress-uniques" (PassFlag addOpt) Supported
- , Flag "dppr-user-length" (AnySuffix addOpt) Supported
- , Flag "dopt-fuel" (AnySuffix addOpt) Supported
- , Flag "dno-debug-output" (PassFlag addOpt) Supported
- -- rest of the debugging flags are dynamic
-
- --------- Profiling --------------------------------------------------
- , Flag "auto-all" (NoArg (addOpt "-fauto-sccs-on-all-toplevs"))
- Supported
- , Flag "auto" (NoArg (addOpt "-fauto-sccs-on-exported-toplevs"))
- Supported
- , Flag "caf-all" (NoArg (addOpt "-fauto-sccs-on-individual-cafs"))
- Supported
- -- "ignore-sccs" doesn't work (ToDo)
-
- , Flag "no-auto-all" (NoArg (removeOpt "-fauto-sccs-on-all-toplevs"))
- Supported
- , Flag "no-auto" (NoArg (removeOpt "-fauto-sccs-on-exported-toplevs"))
- Supported
- , Flag "no-caf-all" (NoArg (removeOpt "-fauto-sccs-on-individual-cafs"))
- Supported
-
- ----- Linker --------------------------------------------------------
- , Flag "static" (PassFlag addOpt) Supported
- , Flag "dynamic" (NoArg (removeOpt "-static")) Supported
- -- ignored for compat w/ gcc:
- , Flag "rdynamic" (NoArg (return ())) Supported
-
- ----- RTS opts ------------------------------------------------------
- , Flag "H" (HasArg (setHeapSize . fromIntegral . decodeSize))
- Supported
- , Flag "Rghc-timing" (NoArg (enableTimingStats)) Supported
-
- ------ Compiler flags -----------------------------------------------
- -- All other "-fno-<blah>" options cancel out "-f<blah>" on the hsc cmdline
- , Flag "fno-"
- (PrefixPred (\s -> isStaticFlag ("f"++s)) (\s -> removeOpt ("-f"++s)))
- Supported
-
- -- Pass all remaining "-f<blah>" options to hsc
- , Flag "f" (AnySuffixPred (isStaticFlag) addOpt)
- Supported
- ]
-
addOpt :: String -> IO ()
addOpt = consIORef v_opt_C
-- how to do it though --SDM.
GLOBAL_VAR(v_Ld_inputs, [], [String])
-isStaticFlag :: String -> Bool
-isStaticFlag f =
- f `elem` [
- "fauto-sccs-on-all-toplevs",
- "fauto-sccs-on-exported-toplevs",
- "fauto-sccs-on-individual-cafs",
- "fscc-profiling",
- "fdicts-strict",
- "fspec-inline-join-points",
- "firrefutable-tuples",
- "fparallel",
- "fgransim",
- "fno-hi-version-check",
- "dno-black-holing",
- "fno-method-sharing",
- "fno-state-hack",
- "fno-ds-multi-tyvar",
- "fruntime-types",
- "fno-pre-inlining",
- "fexcess-precision",
- "static",
- "fhardwire-lib-paths",
- "funregisterised",
- "fext-core",
- "fcpr-off",
- "ferror-spans",
- "fPIC",
- "fhpc"
- ]
- || any (`isPrefixOf` f) [
- "fliberate-case-threshold",
- "fmax-worker-args",
- "fhistory-size",
- "funfolding-creation-threshold",
- "funfolding-use-threshold",
- "funfolding-fun-discount",
- "funfolding-keeness-factor"
- ]
-
------------------------------------------------------------------------------
--- 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 = readRational m
- pred c = isDigit c || c == '.'
-
-
------------------------------------------------------------------------------
--- RTS Hooks
-
-foreign import ccall unsafe "setHeapSize" setHeapSize :: Int -> IO ()
-foreign import ccall unsafe "enableTimingStats" enableTimingStats :: IO ()
-
-----------------------------------------------------------------------------
-- Ways
let ws = sort (nub way_names)
if not (allowed_combination ws)
- then throwDyn (CmdLineError $
+ then ghcError (CmdLineError $
"combination not supported: " ++
foldr1 (\a b -> a ++ '/':b)
(map (wayName . lkupWay) ws))
, "-package concurrent" ]),
(WayNDP, Way "ndp" False "Nested data parallelism"
- [ "-fparr"
+ [ "-XParr"
, "-fvectorise"]),
(WayUser_a, Way "a" False "User way 'a'" ["$WAY_a_REAL_OPTS"]),
(WayUser_B, Way "B" False "User way 'B'" ["$WAY_B_REAL_OPTS"])
]
-unregFlags :: [String]
-unregFlags =
- [ "-optc-DNO_REGS"
- , "-optc-DUSE_MINIINTERPRETER"
- , "-fno-asm-mangling"
- , "-funregisterised"
- , "-fvia-C" ]