--
-----------------------------------------------------------------------------
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/CodingStyle#Warnings
+-- for details
+
module StaticFlags (
parseStaticFlags,
staticFlags,
+ initStaticOpts,
-- Ways
- WayName(..), v_Ways, v_Build_tag, v_RTS_Build_tag,
+ WayName(..), v_Ways, v_Build_tag, v_RTS_Build_tag, isRTSWay,
-- Output style options
opt_PprUserLength,
opt_SccProfilingOn,
opt_DoTickyProfiling,
+ -- Hpc opts
+ opt_Hpc,
+
-- language opts
opt_DictsStrict,
- opt_MaxContextReductionDepth,
opt_IrrefutableTuples,
opt_Parallel,
opt_RuntimeTypes,
-- optimisation opts
opt_NoMethodSharing,
opt_NoStateHack,
- opt_LiberateCaseThreshold,
opt_CprOff,
- opt_RulesOff,
opt_SimplNoPreInlining,
opt_SimplExcessPrecision,
opt_MaxWorkerArgs,
opt_UF_UpdateInPlace,
opt_UF_DearOp,
+ -- Related to linking
+ opt_PIC,
+ opt_Static,
+ opt_HardwireLibPaths,
+
-- misc opts
opt_IgnoreDotGhci,
opt_ErrorSpans,
- opt_EmitCExternDecls,
opt_GranMacros,
opt_HiVersion,
opt_HistorySize,
opt_OmitBlackHoling,
- opt_Static,
opt_Unregisterised,
opt_EmitExternalCore,
- opt_PIC,
v_Ld_inputs,
+ tablesNextToCode
) where
#include "HsVersions.h"
-import Util ( consIORef )
import CmdLineParser
-import Config ( cProjectVersionInt, cProjectPatchLevel,
- cGhcUnregisterised )
+import Config
import FastString ( FastString, mkFastString )
import Util
import Maybes ( firstJust )
-import Panic ( GhcException(..), ghcError )
-import Constants ( mAX_CONTEXT_REDUCTION_DEPTH )
+import Panic
-import EXCEPTION ( throwDyn )
-import DATA_IOREF
-import UNSAFE_IO ( unsafePerformIO )
-import Monad ( when )
-import Char ( isDigit )
-import Data.List ( sort, intersperse, nub )
+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]
parseStaticFlags args = do
+ ready <- readIORef v_opt_C_ready
+ when ready $ throwDyn (ProgramError "Too late for parseStaticFlags: call it before newSession")
+
(leftover, errs) <- processArgs static_flags args
when (not (null errs)) $ throwDyn (UsageError (unlines errs))
-- deal with the way flags: the way (eg. prof) gives rise to
- -- futher flags, some of which might be static.
+ -- further flags, some of which might be static.
way_flags <- findBuildTag
-- if we're unregisterised, add some more flags
| otherwise = []
(more_leftover, errs) <- 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 (more_leftover++leftover)
+ return (excess_prec++cg_flags++more_leftover++leftover)
+initStaticOpts :: IO ()
+initStaticOpts = writeIORef v_opt_C_ready True
+
+static_flags :: [(String, OptKind 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
+-- 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 :: [(String, OptKind IO)]
static_flags = [
------- GHCi -------------------------------------------------------
( "ignore-dot-ghci", PassFlag addOpt )
-- ToDo: user ways
------ Debugging ----------------------------------------------------
- , ( "dppr-noprags", PassFlag addOpt )
, ( "dppr-debug", PassFlag addOpt )
, ( "dppr-user-length", AnySuffix addOpt )
-- rest of the debugging flags are dynamic
-- holds the static opts while they're being collected, before
-- being unsafely read by unpacked_static_opts below.
GLOBAL_VAR(v_opt_C, defaultStaticOpts, [String])
-staticFlags = unsafePerformIO (readIORef v_opt_C)
+GLOBAL_VAR(v_opt_C_ready, False, Bool)
+staticFlags = unsafePerformIO $ do
+ ready <- readIORef v_opt_C_ready
+ if (not ready)
+ then panic "a static opt was looked at too early!"
+ else readIORef v_opt_C
-- -static is the default
defaultStaticOpts = ["-static"]
opt_AutoSccsOnExportedToplevs = lookUp FSLIT("-fauto-sccs-on-exported-toplevs")
opt_AutoSccsOnIndividualCafs = lookUp FSLIT("-fauto-sccs-on-individual-cafs")
opt_SccProfilingOn = lookUp FSLIT("-fscc-profiling")
-opt_DoTickyProfiling = lookUp FSLIT("-fticky-ticky")
+opt_DoTickyProfiling = WayTicky `elem` (unsafePerformIO $ readIORef v_Ways)
+
+-- Hpc opts
+opt_Hpc = lookUp FSLIT("-fhpc")
-- language opts
opt_DictsStrict = lookUp FSLIT("-fdicts-strict")
opt_IrrefutableTuples = lookUp FSLIT("-firrefutable-tuples")
-opt_MaxContextReductionDepth = lookup_def_int "-fcontext-stack" mAX_CONTEXT_REDUCTION_DEPTH
opt_Parallel = lookUp FSLIT("-fparallel")
opt_Flatten = lookUp FSLIT("-fflatten")
opt_NoStateHack = lookUp FSLIT("-fno-state-hack")
opt_NoMethodSharing = lookUp FSLIT("-fno-method-sharing")
opt_CprOff = lookUp FSLIT("-fcpr-off")
-opt_RulesOff = lookUp FSLIT("-frules-off")
-- Switch off CPR analysis in the new demand analyser
-opt_LiberateCaseThreshold = lookup_def_int "-fliberate-case-threshold" (10::Int)
opt_MaxWorkerArgs = lookup_def_int "-fmax-worker-args" (10::Int)
-opt_EmitCExternDecls = lookUp FSLIT("-femit-extern-decls")
opt_GranMacros = lookUp FSLIT("-fgransim")
-opt_HiVersion = read (cProjectVersionInt ++ cProjectPatchLevel) :: Int
+opt_HiVersion = read (cProjectVersionInt ++ cProjectPatchLevel) :: Integer
opt_HistorySize = lookup_def_int "-fhistory-size" 20
opt_OmitBlackHoling = lookUp FSLIT("-dno-black-holing")
opt_RuntimeTypes = lookUp FSLIT("-fruntime-types")
opt_UF_DearOp = ( 4 :: Int)
+#if darwin_TARGET_OS && x86_64_TARGET_ARCH
+opt_PIC = True
+#else
+opt_PIC = lookUp FSLIT("-fPIC")
+#endif
opt_Static = lookUp FSLIT("-static")
+opt_HardwireLibPaths = lookUp FSLIT("-fhardwire-lib-paths")
opt_Unregisterised = lookUp FSLIT("-funregisterised")
+
+-- Derived, not a real option. Determines whether we will be compiling
+-- info tables that reside just before the entry code, or with an
+-- indirection to the entry code. See TABLES_NEXT_TO_CODE in
+-- includes/InfoTables.h.
+tablesNextToCode = not opt_Unregisterised
+ && cGhcEnableTablesNextToCode == "YES"
+
opt_EmitExternalCore = lookUp FSLIT("-fext-core")
-- Include full span info in error messages, instead of just the start position.
opt_ErrorSpans = lookUp FSLIT("-ferror-spans")
-opt_PIC = lookUp FSLIT("-fPIC")
-- object files and libraries to be linked in are collected here.
-- ToDo: perhaps this could be done without a global, it wasn't obvious
"fauto-sccs-on-exported-toplevs",
"fauto-sccs-on-individual-cafs",
"fscc-profiling",
- "fticky-ticky",
- "fall-strict",
"fdicts-strict",
"firrefutable-tuples",
"fparallel",
"fflatten",
- "fsemi-tagging",
- "flet-no-escape",
- "femit-extern-decls",
- "fglobalise-toplev-names",
"fgransim",
"fno-hi-version-check",
"dno-black-holing",
"fexcess-precision",
"funfolding-update-in-place",
"static",
+ "fhardwire-lib-paths",
"funregisterised",
"fext-core",
- "frule-check",
- "frules-off",
"fcpr-off",
"ferror-spans",
- "fPIC"
+ "fPIC",
+ "fhpc"
]
- || any (flip prefixMatch f) [
- "fcontext-stack",
+ || any (`isPrefixOf` f) [
"fliberate-case-threshold",
"fmax-worker-args",
"fhistory-size",
| 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
+ n = readRational m
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
-----------------------------------------------------------------------------
-- Ways
_ `allowedWith` WayDebug = True
WayDebug `allowedWith` _ = True
- WayThreaded `allowedWith` WayProf = True
WayProf `allowedWith` WayUnreg = True
WayProf `allowedWith` WayNDP = True
_ `allowedWith` _ = False
findBuildTag = do
way_names <- readIORef v_Ways
let ws = sort (nub way_names)
+
if not (allowed_combination ws)
then throwDyn (CmdLineError $
"combination not supported: " ++
writeIORef v_RTS_Build_tag rts_tag
return (concat flags)
+
+
mkBuildTag :: [Way] -> String
mkBuildTag ways = concat (intersperse "_" (map wayTag ways))
Nothing -> error "findBuildTag"
Just details -> details
+isRTSWay = wayRTSOnly . lkupWay
+
data Way = Way {
wayTag :: String,
wayRTSOnly :: Bool,
way_details =
[ (WayThreaded, Way "thr" True "Threaded" [
#if defined(freebsd_TARGET_OS)
- "-optc-pthread"
- , "-optl-pthread"
+-- "-optc-pthread"
+-- , "-optl-pthread"
+ -- FreeBSD's default threading library is the KSE-based M:N libpthread,
+ -- which GHC has some problems with. It's currently not clear whether
+ -- the problems are our fault or theirs, but it seems that using the
+ -- alternative 1:1 threading library libthr works around it:
+ "-optl-lthr"
#elif defined(solaris2_TARGET_OS)
"-optl-lrt"
#endif
, "-DPROFILING"
, "-optc-DPROFILING" ]),
- (WayTicky, Way "t" False "Ticky-ticky Profiling"
- [ "-fticky-ticky"
- , "-DTICKY_TICKY"
+ (WayTicky, Way "t" True "Ticky-ticky Profiling"
+ [ "-DTICKY_TICKY"
, "-optc-DTICKY_TICKY" ]),
(WayUnreg, Way "u" False "Unregisterised"
projects / ghc-hetmet.git / blobdiff