X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2FabsCSyn%2FCLabel.lhs;h=f2b3ff9832012f7683f0cd3f4068fe8aedf74dd5;hb=3087014ae03067cf0f9c9e0d8d49fb885e2cd0a8;hp=ae460878383b3ffd6860154bfd09f967ec12c084;hpb=d11e681f219f6e38c2e5bc87adfb66f82de5ea65;p=ghc-hetmet.git diff --git a/ghc/compiler/absCSyn/CLabel.lhs b/ghc/compiler/absCSyn/CLabel.lhs index ae46087..f2b3ff9 100644 --- a/ghc/compiler/absCSyn/CLabel.lhs +++ b/ghc/compiler/absCSyn/CLabel.lhs @@ -1,7 +1,5 @@ % -% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998 -% -% $Id: CLabel.lhs,v 1.49 2001/12/05 17:35:12 sewardj Exp $ +% (c) The University of Glasgow, 1992-2002 % \section[CLabel]{@CLabel@: Information to make C Labels} @@ -11,9 +9,10 @@ module CLabel ( mkClosureLabel, mkSRTLabel, + mkSRTDescLabel, mkInfoTableLabel, - mkStdEntryLabel, - mkFastEntryLabel, + mkEntryLabel, + mkSlowEntryLabel, mkConEntryLabel, mkStaticConEntryLabel, mkRednCountsLabel, @@ -34,6 +33,7 @@ module CLabel ( mkAsmTempLabel, mkModuleInitLabel, + mkPlainModuleInitLabel, mkErrorStdEntryLabel, @@ -44,7 +44,7 @@ module CLabel ( mkIndInfoLabel, mkIndStaticInfoLabel, mkRtsGCEntryLabel, - mkMainRegTableLabel, + mkMainCapabilityLabel, mkCharlikeClosureLabel, mkIntlikeClosureLabel, mkMAP_FROZEN_infoLabel, @@ -52,6 +52,7 @@ module CLabel ( mkTopTickyCtrLabel, mkBlackHoleInfoTableLabel, + mkBlackHoleBQInfoTableLabel, mkCAFBlackHoleInfoTableLabel, mkSECAFBlackHoleInfoTableLabel, mkRtsPrimOpLabel, @@ -61,6 +62,9 @@ module CLabel ( mkSelectorInfoLabel, mkSelectorEntryLabel, + mkRtsApplyInfoLabel, + mkRtsApplyEntryLabel, + mkForeignLabel, mkCC_Label, mkCCS_Label, @@ -84,12 +88,13 @@ import CStrings ( pp_cSEP ) import DataCon ( ConTag ) import Module ( moduleName, moduleNameFS, Module, isHomeModule ) -import Name ( Name, getName, isDllName, isExternallyVisibleName ) +import Name ( Name, getName, isDllName, isExternalName ) import TyCon ( TyCon ) import Unique ( pprUnique, Unique ) import PrimOp ( PrimOp ) import CostCentre ( CostCentre, CostCentreStack ) import Outputable +import FastString \end{code} things we want to find out: @@ -122,11 +127,20 @@ data CLabel | AsmTempLabel Unique - | ModuleInitLabel Module + | ModuleInitLabel + Module -- the module name + String -- its "way" + -- at some point we might want some kind of version number in + -- the module init label, to guard against compiling modules in + -- the wrong order. We can't use the interface file version however, + -- because we don't always recompile modules which depend on a module + -- whose version has changed. + + | PlainModuleInitLabel Module -- without the vesrion & way info | RtsLabel RtsLabelInfo - | ForeignLabel FAST_STRING Bool -- a 'C' (or otherwise foreign) label + | ForeignLabel FastString Bool -- a 'C' (or otherwise foreign) label -- Bool <=> is dynamic | CC_Label CostCentre @@ -138,20 +152,18 @@ data CLabel \begin{code} data IdLabelInfo = Closure -- Label for (static???) closure - | SRT -- Static reference table - - | InfoTbl -- Info table for a closure; always read-only - - | EntryStd -- Thunk, or "slow", code entry point - - | EntryFast Int -- entry pt when no arg satisfaction chk needed; - -- Int is the arity of the function (to be - -- encoded into the name) + | SRTDesc -- Static reference table descriptor + | InfoTbl -- Info tables for closures; always read-only + | Entry -- entry point + | Slow -- slow entry point -- Ticky-ticky counting | RednCounts -- Label of place to keep reduction-count info for -- this Id + + | Bitmap -- A bitmap (function or case return) + deriving (Eq, Ord) data DataConLabelInfo @@ -167,18 +179,17 @@ data CaseLabelInfo | CaseVecTbl | CaseAlt ConTag | CaseDefault - | CaseBitmap deriving (Eq, Ord) data RtsLabelInfo = RtsShouldNeverHappenCode - | RtsBlackHoleInfoTbl FAST_STRING -- black hole with info table name + | RtsBlackHoleInfoTbl LitString -- black hole with info table name | RtsUpdInfo -- upd_frame_info | RtsSeqInfo -- seq_frame_info | RtsGCEntryLabel String -- a heap check fail handler, eg stg_chk_2 - | RtsMainRegTable -- MainRegTable (??? Capabilities wurble ???) + | RtsMainCapability -- MainCapability | Rts_Closure String -- misc rts closures, eg CHARLIKE_closure | Rts_Info String -- misc rts itbls, eg MUT_ARR_PTRS_FROZEN_info | Rts_Code String -- misc rts code @@ -195,12 +206,16 @@ data RtsLabelInfo | RtsModuleRegd + | RtsApplyInfoLabel LitString + | RtsApplyEntryLabel LitString + deriving (Eq, Ord) -- Label Type: for generating C declarations. data CLabelType - = InfoTblType + = RetInfoTblType + | InfoTblType | ClosureType | VecTblType | ClosureTblType @@ -211,11 +226,11 @@ data CLabelType \begin{code} mkClosureLabel id = IdLabel id Closure mkSRTLabel id = IdLabel id SRT -mkInfoTableLabel id = IdLabel id InfoTbl -mkStdEntryLabel id = IdLabel id EntryStd -mkFastEntryLabel id arity = ASSERT(arity > 0) - IdLabel id (EntryFast arity) - +mkSRTDescLabel id = IdLabel id SRTDesc +mkInfoTableLabel id = IdLabel id InfoTbl +mkEntryLabel id = IdLabel id Entry +mkSlowEntryLabel id = IdLabel id Slow +mkBitmapLabel id = IdLabel id Bitmap mkRednCountsLabel id = IdLabel id RednCounts mkStaticInfoTableLabel con = DataConLabel con StaticInfoTbl @@ -229,13 +244,14 @@ mkReturnInfoLabel uniq = CaseLabel uniq CaseReturnInfo mkVecTblLabel uniq = CaseLabel uniq CaseVecTbl mkAltLabel uniq tag = CaseLabel uniq (CaseAlt tag) mkDefaultLabel uniq = CaseLabel uniq CaseDefault -mkBitmapLabel uniq = CaseLabel uniq CaseBitmap + mkClosureTblLabel tycon = TyConLabel tycon mkAsmTempLabel = AsmTempLabel mkModuleInitLabel = ModuleInitLabel +mkPlainModuleInitLabel = PlainModuleInitLabel -- Some fixed runtime system labels @@ -247,7 +263,7 @@ mkSeqInfoLabel = RtsLabel RtsSeqInfo mkIndInfoLabel = RtsLabel (Rts_Info "stg_IND_info") mkIndStaticInfoLabel = RtsLabel (Rts_Info "stg_IND_STATIC_info") mkRtsGCEntryLabel str = RtsLabel (RtsGCEntryLabel str) -mkMainRegTableLabel = RtsLabel RtsMainRegTable +mkMainCapabilityLabel = RtsLabel RtsMainCapability mkCharlikeClosureLabel = RtsLabel (Rts_Closure "stg_CHARLIKE_closure") mkIntlikeClosureLabel = RtsLabel (Rts_Closure "stg_INTLIKE_closure") mkMAP_FROZEN_infoLabel = RtsLabel (Rts_Info "stg_MUT_ARR_PTRS_FROZEN_info") @@ -255,6 +271,7 @@ mkEMPTY_MVAR_infoLabel = RtsLabel (Rts_Info "stg_EMPTY_MVAR_info") mkTopTickyCtrLabel = RtsLabel RtsTopTickyCtr mkBlackHoleInfoTableLabel = RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_BLACKHOLE_info")) +mkBlackHoleBQInfoTableLabel = RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_BLACKHOLE_BQ_info")) mkCAFBlackHoleInfoTableLabel = RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_CAF_BLACKHOLE_info")) mkSECAFBlackHoleInfoTableLabel = if opt_DoTickyProfiling then RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_SE_CAF_BLACKHOLE_info")) @@ -272,13 +289,18 @@ mkApEntryLabel upd off = RtsLabel (RtsApEntry upd off) -- Foreign labels -mkForeignLabel :: FAST_STRING -> Bool -> CLabel +mkForeignLabel :: FastString -> Bool -> CLabel mkForeignLabel str is_dynamic = ForeignLabel str is_dynamic -- Cost centres etc. mkCC_Label cc = CC_Label cc mkCCS_Label ccs = CCS_Label ccs + +-- Std RTS application routines + +mkRtsApplyInfoLabel = RtsLabel . RtsApplyInfoLabel +mkRtsApplyEntryLabel = RtsLabel . RtsApplyEntryLabel \end{code} \begin{code} @@ -300,11 +322,17 @@ Declarations for direct return points are needed, because they may be let-no-escapes, which can be recursive. \begin{code} + -- don't bother declaring SRT & Bitmap labels, we always make sure + -- they are defined before use. +needsCDecl (IdLabel _ SRT) = False +needsCDecl (IdLabel _ SRTDesc) = False +needsCDecl (IdLabel _ Bitmap) = False needsCDecl (IdLabel _ _) = True needsCDecl (CaseLabel _ CaseReturnPt) = True needsCDecl (DataConLabel _ _) = True needsCDecl (TyConLabel _) = True -needsCDecl (ModuleInitLabel _) = True +needsCDecl (ModuleInitLabel _ _) = True +needsCDecl (PlainModuleInitLabel _) = True needsCDecl (CaseLabel _ _) = False needsCDecl (AsmTempLabel _) = False @@ -331,35 +359,46 @@ externallyVisibleCLabel (DataConLabel _ _) = True externallyVisibleCLabel (TyConLabel tc) = True externallyVisibleCLabel (CaseLabel _ _) = False externallyVisibleCLabel (AsmTempLabel _) = False -externallyVisibleCLabel (ModuleInitLabel _)= True +externallyVisibleCLabel (ModuleInitLabel _ _)= True +externallyVisibleCLabel (PlainModuleInitLabel _)= True externallyVisibleCLabel (RtsLabel RtsModuleRegd) = False --hack externallyVisibleCLabel (RtsLabel _) = True externallyVisibleCLabel (ForeignLabel _ _) = True -externallyVisibleCLabel (IdLabel id _) = isExternallyVisibleName id +externallyVisibleCLabel (IdLabel id _) = isExternalName id externallyVisibleCLabel (CC_Label _) = False -- not strictly true externallyVisibleCLabel (CCS_Label _) = False -- not strictly true \end{code} -For generating correct types in label declarations... +For generating correct types in label declarations, and also for +deciding whether the C compiler would like us to use '&' before the +label to get its address: \begin{code} labelType :: CLabel -> CLabelType labelType (RtsLabel (RtsBlackHoleInfoTbl _)) = InfoTblType labelType (RtsLabel (RtsSelectorInfoTbl _ _)) = InfoTblType labelType (RtsLabel (RtsApInfoTbl _ _)) = InfoTblType -labelType (RtsLabel RtsUpdInfo) = InfoTblType +labelType (RtsLabel RtsUpdInfo) = RetInfoTblType +labelType (RtsLabel RtsSeqInfo) = RetInfoTblType +labelType (RtsLabel RtsTopTickyCtr) = CodeType -- XXX labelType (RtsLabel (Rts_Info _)) = InfoTblType -labelType (CaseLabel _ CaseReturnInfo) = InfoTblType +labelType (RtsLabel (RtsApplyInfoLabel _)) = RetInfoTblType +labelType (RtsLabel (RtsApplyEntryLabel _)) = CodeType +labelType (CaseLabel _ CaseReturnInfo) = RetInfoTblType labelType (CaseLabel _ CaseReturnPt) = CodeType labelType (CaseLabel _ CaseVecTbl) = VecTblType labelType (TyConLabel _) = ClosureTblType -labelType (ModuleInitLabel _ ) = CodeType +labelType (ModuleInitLabel _ _) = CodeType +labelType (PlainModuleInitLabel _) = CodeType +labelType (CC_Label _) = CodeType -- hack +labelType (CCS_Label _) = CodeType -- hack labelType (IdLabel _ info) = case info of - InfoTbl -> InfoTblType - Closure -> ClosureType - _ -> CodeType + InfoTbl -> InfoTblType + Closure -> ClosureType + Bitmap -> DataType + _ -> CodeType labelType (DataConLabel _ info) = case info of @@ -387,7 +426,8 @@ labelDynamic lbl = DataConLabel n k -> isDllName n TyConLabel tc -> isDllName (getName tc) ForeignLabel _ d -> d - ModuleInitLabel m -> (not opt_Static) && (not (isHomeModule m)) + ModuleInitLabel m _ -> (not opt_Static) && (not (isHomeModule m)) + PlainModuleInitLabel m -> (not opt_Static) && (not (isHomeModule m)) _ -> False \end{code} @@ -412,7 +452,9 @@ internal names. is one of the following: info Info table srt Static reference table + srtd Static reference table descriptor entry Entry code + slow Slow entry code (if any) ret Direct return address vtbl Vector table _alt Case alternative (tag n) @@ -455,8 +497,6 @@ pprCLbl (CaseLabel u (CaseAlt tag)) = hcat [pprUnique u, pp_cSEP, int tag, pp_cSEP, ptext SLIT("alt")] pprCLbl (CaseLabel u CaseDefault) = hcat [pprUnique u, pp_cSEP, ptext SLIT("dflt")] -pprCLbl (CaseLabel u CaseBitmap) - = hcat [pprUnique u, pp_cSEP, ptext SLIT("btm")] pprCLbl (RtsLabel RtsShouldNeverHappenCode) = ptext SLIT("NULL") -- used to be stg_error_entry but Windows can't have DLL entry points as static @@ -464,7 +504,7 @@ pprCLbl (RtsLabel RtsShouldNeverHappenCode) = ptext SLIT("NULL") pprCLbl (RtsLabel RtsUpdInfo) = ptext SLIT("stg_upd_frame_info") pprCLbl (RtsLabel RtsSeqInfo) = ptext SLIT("stg_seq_frame_info") -pprCLbl (RtsLabel RtsMainRegTable) = ptext SLIT("MainRegTable") +pprCLbl (RtsLabel RtsMainCapability) = ptext SLIT("MainCapability") pprCLbl (RtsLabel (RtsGCEntryLabel str)) = text str pprCLbl (RtsLabel (Rts_Closure str)) = text str pprCLbl (RtsLabel (Rts_Info str)) = text str @@ -502,6 +542,12 @@ pprCLbl (RtsLabel (RtsApEntry upd_reqd arity)) else SLIT("_noupd_entry")) ] +pprCLbl (RtsLabel (RtsApplyInfoLabel fs)) + = ptext SLIT("stg_ap_") <> ptext fs <> ptext SLIT("_info") + +pprCLbl (RtsLabel (RtsApplyEntryLabel fs)) + = ptext SLIT("stg_ap_") <> ptext fs <> ptext SLIT("_ret") + pprCLbl (RtsLabel (RtsPrimOp primop)) = ppr primop <> ptext SLIT("_fast") @@ -509,7 +555,7 @@ pprCLbl (RtsLabel RtsModuleRegd) = ptext SLIT("module_registered") pprCLbl (ForeignLabel str _) - = ptext str + = ftext str pprCLbl (TyConLabel tc) = hcat [ppr tc, pp_cSEP, ptext SLIT("closure_tbl")] @@ -520,8 +566,11 @@ pprCLbl (DataConLabel con flavor) = ppr con <> ppConFlavor flavor pprCLbl (CC_Label cc) = ppr cc pprCLbl (CCS_Label ccs) = ppr ccs -pprCLbl (ModuleInitLabel mod) - = ptext SLIT("__stginit_") <> ptext (moduleNameFS (moduleName mod)) +pprCLbl (ModuleInitLabel mod way) + = ptext SLIT("__stginit_") <> ftext (moduleNameFS (moduleName mod)) + <> char '_' <> text way +pprCLbl (PlainModuleInitLabel mod) + = ptext SLIT("__stginit_") <> ftext (moduleNameFS (moduleName mod)) ppIdFlavor :: IdLabelInfo -> SDoc @@ -529,11 +578,12 @@ ppIdFlavor x = pp_cSEP <> (case x of Closure -> ptext SLIT("closure") SRT -> ptext SLIT("srt") - InfoTbl -> ptext SLIT("info") - EntryStd -> ptext SLIT("entry") - EntryFast arity -> --false:ASSERT (arity > 0) - (<>) (ptext SLIT("fast")) (int arity) + SRTDesc -> ptext SLIT("srtd") + InfoTbl -> ptext SLIT("info") + Entry -> ptext SLIT("entry") + Slow -> ptext SLIT("slow") RednCounts -> ptext SLIT("ct") + Bitmap -> ptext SLIT("btm") ) ppConFlavor x = pp_cSEP <> @@ -544,4 +594,3 @@ ppConFlavor x = pp_cSEP <> StaticInfoTbl -> ptext SLIT("static_info") ) \end{code} -