%
% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
-% $Id: CLabel.lhs,v 1.24 1999/03/02 16:44:26 sof Exp $
+% $Id: CLabel.lhs,v 1.47 2001/09/04 18:29:20 ken Exp $
%
\section[CLabel]{@CLabel@: Information to make C Labels}
mkStaticConEntryLabel,
mkRednCountsLabel,
mkConInfoTableLabel,
- mkStaticClosureLabel,
mkStaticInfoTableLabel,
mkApEntryLabel,
mkApInfoTableLabel,
mkAsmTempLabel,
+ mkModuleInitLabel,
+
mkErrorStdEntryLabel,
- mkUpdEntryLabel,
+
+ mkStgUpdatePAPLabel,
+ mkSplitMarkerLabel,
+ mkUpdInfoLabel,
+ mkSeqInfoLabel,
+ mkIndInfoLabel,
+ mkIndStaticInfoLabel,
+ mkRtsGCEntryLabel,
+ mkMainRegTableLabel,
+ mkCharlikeClosureLabel,
+ mkIntlikeClosureLabel,
+ mkMAP_FROZEN_infoLabel,
+ mkEMPTY_MVAR_infoLabel,
+
+ mkTopTickyCtrLabel,
mkBlackHoleInfoTableLabel,
+ mkCAFBlackHoleInfoTableLabel,
+ mkSECAFBlackHoleInfoTableLabel,
mkRtsPrimOpLabel,
+ moduleRegdLabel,
+
mkSelectorInfoLabel,
mkSelectorEntryLabel,
+ mkForeignLabel,
+
mkCC_Label, mkCCS_Label,
- needsCDecl, isReadOnly, isAsmTemp, externallyVisibleCLabel,
+ needsCDecl, isAsmTemp, externallyVisibleCLabel,
CLabelType(..), labelType, labelDynamic,
import {-# SOURCE #-} MachMisc ( underscorePrefix, fmtAsmLbl )
#endif
-import CmdLineOpts ( opt_Static )
+import CmdLineOpts ( opt_Static, opt_DoTickyProfiling )
import CStrings ( pp_cSEP )
-import DataCon ( ConTag, DataCon )
-import Module ( isDynamicModule )
-import Name ( Name, getName, isExternallyVisibleName, nameModule, isLocallyDefinedName )
+import DataCon ( ConTag )
+import Module ( moduleName, moduleNameFS,
+ Module, isHomeModule )
+import Name ( Name, getName, isDllName, isExternallyVisibleName )
import TyCon ( TyCon )
import Unique ( pprUnique, Unique )
-import PrimOp ( PrimOp, pprPrimOp )
+import PrimOp ( PrimOp )
import CostCentre ( CostCentre, CostCentreStack )
-import Util
import Outputable
\end{code}
| AsmTempLabel Unique
+ | ModuleInitLabel Module
+
| RtsLabel RtsLabelInfo
+ | ForeignLabel FAST_STRING Bool -- a 'C' (or otherwise foreign) label
+ -- Bool <=> is dynamic
+
| CC_Label CostCentre
| CCS_Label CostCentreStack
data DataConLabelInfo
= ConEntry -- the only kind of entry pt for constructors
| ConInfoTbl -- corresponding info table
-
- | StaticClosure -- Static constructor closure
- -- e.g., nullary constructor
| StaticConEntry -- static constructor entry point
| StaticInfoTbl -- corresponding info table
deriving (Eq, Ord)
data RtsLabelInfo
= RtsShouldNeverHappenCode
- | RtsBlackHoleInfoTbl
+ | RtsBlackHoleInfoTbl FAST_STRING -- black hole with info table name
- | RtsUpdEntry
+ | RtsUpdInfo -- upd_frame_info
+ | RtsSeqInfo -- seq_frame_info
+ | RtsGCEntryLabel String -- a heap check fail handler, eg stg_chk_2
+ | RtsMainRegTable -- MainRegTable (??? Capabilities wurble ???)
+ | 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
| RtsSelectorInfoTbl Bool{-updatable-} Int{-offset-} -- Selector thunks
| RtsSelectorEntry Bool{-updatable-} Int{-offset-}
| RtsPrimOp PrimOp
+ | RtsTopTickyCtr
+
+ | RtsModuleRegd
+
deriving (Eq, Ord)
-- Label Type: for generating C declarations.
= InfoTblType
| ClosureType
| VecTblType
+ | ClosureTblType
| CodeType
| DataType
\end{code}
mkRednCountsLabel id = IdLabel id RednCounts
-mkStaticClosureLabel con = DataConLabel con StaticClosure
mkStaticInfoTableLabel con = DataConLabel con StaticInfoTbl
mkConInfoTableLabel con = DataConLabel con ConInfoTbl
mkConEntryLabel con = DataConLabel con ConEntry
mkAsmTempLabel = AsmTempLabel
+mkModuleInitLabel = ModuleInitLabel
+
-- Some fixed runtime system labels
-mkErrorStdEntryLabel = RtsLabel RtsShouldNeverHappenCode
-mkUpdEntryLabel = RtsLabel RtsUpdEntry
-mkBlackHoleInfoTableLabel = RtsLabel RtsBlackHoleInfoTbl
+mkErrorStdEntryLabel = RtsLabel RtsShouldNeverHappenCode
+mkStgUpdatePAPLabel = RtsLabel (Rts_Code "stg_update_PAP")
+mkSplitMarkerLabel = RtsLabel (Rts_Code "__stg_split_marker")
+mkUpdInfoLabel = RtsLabel RtsUpdInfo
+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
+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")
+mkEMPTY_MVAR_infoLabel = RtsLabel (Rts_Info "stg_EMPTY_MVAR_info")
+
+mkTopTickyCtrLabel = RtsLabel RtsTopTickyCtr
+mkBlackHoleInfoTableLabel = RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_BLACKHOLE_info"))
+mkCAFBlackHoleInfoTableLabel = RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_CAF_BLACKHOLE_info"))
+mkSECAFBlackHoleInfoTableLabel = if opt_DoTickyProfiling then
+ RtsLabel (RtsBlackHoleInfoTbl SLIT("stg_SE_CAF_BLACKHOLE_info"))
+ else -- RTS won't have info table unless -ticky is on
+ panic "mkSECAFBlackHoleInfoTableLabel requires -ticky"
mkRtsPrimOpLabel primop = RtsLabel (RtsPrimOp primop)
+moduleRegdLabel = RtsLabel RtsModuleRegd
+
mkSelectorInfoLabel upd off = RtsLabel (RtsSelectorInfoTbl upd off)
mkSelectorEntryLabel upd off = RtsLabel (RtsSelectorEntry upd off)
mkApInfoTableLabel upd off = RtsLabel (RtsApInfoTbl upd off)
mkApEntryLabel upd off = RtsLabel (RtsApEntry upd off)
+ -- Foreign labels
+
+mkForeignLabel :: FAST_STRING -> Bool -> CLabel
+mkForeignLabel str is_dynamic = ForeignLabel str is_dynamic
+
-- Cost centres etc.
mkCC_Label cc = CC_Label cc
\begin{code}
needsCDecl :: CLabel -> Bool -- False <=> it's pre-declared; don't bother
-isReadOnly :: CLabel -> Bool -- lives in C "text space"
isAsmTemp :: CLabel -> Bool -- is a local temporary for native code generation
externallyVisibleCLabel :: CLabel -> Bool -- not C "static"
\end{code}
needsCDecl (IdLabel _ _) = True
needsCDecl (CaseLabel _ CaseReturnPt) = True
needsCDecl (DataConLabel _ _) = True
-needsCDecl (CaseLabel _ _) = False
+needsCDecl (TyConLabel _) = True
+needsCDecl (ModuleInitLabel _) = True
+needsCDecl (CaseLabel _ _) = False
needsCDecl (AsmTempLabel _) = False
-needsCDecl (TyConLabel _) = False
needsCDecl (RtsLabel _) = False
+needsCDecl (ForeignLabel _ _) = False
needsCDecl (CC_Label _) = False
needsCDecl (CCS_Label _) = False
\end{code}
-Whether the labelled thing can be put in C "text space":
-
-\begin{code}
-isReadOnly (IdLabel _ InfoTbl) = True -- info-tables: yes
-isReadOnly (IdLabel _ other) = False -- others: pessimistically, no
-
-isReadOnly (DataConLabel _ _) = True -- and so on, for other
-isReadOnly (TyConLabel _) = True
-isReadOnly (CaseLabel _ _) = True
-isReadOnly (AsmTempLabel _) = True
-isReadOnly (RtsLabel _) = True
-isReadOnly (CC_Label _) = True
-isReadOnly (CCS_Label _) = True
-\end{code}
-
Whether the label is an assembler temporary:
\begin{code}
externallyVisibleCLabel (TyConLabel tc) = True
externallyVisibleCLabel (CaseLabel _ _) = False
externallyVisibleCLabel (AsmTempLabel _) = False
+externallyVisibleCLabel (ModuleInitLabel _)= True
+externallyVisibleCLabel (RtsLabel RtsModuleRegd) = False --hack
externallyVisibleCLabel (RtsLabel _) = True
+externallyVisibleCLabel (ForeignLabel _ _) = True
externallyVisibleCLabel (IdLabel id _) = isExternallyVisibleName id
externallyVisibleCLabel (CC_Label _) = False -- not strictly true
externallyVisibleCLabel (CCS_Label _) = False -- not strictly true
\begin{code}
labelType :: CLabel -> CLabelType
-labelType (RtsLabel RtsBlackHoleInfoTbl) = InfoTblType
+labelType (RtsLabel (RtsBlackHoleInfoTbl _)) = InfoTblType
labelType (RtsLabel (RtsSelectorInfoTbl _ _)) = InfoTblType
labelType (RtsLabel (RtsApInfoTbl _ _)) = InfoTblType
+labelType (RtsLabel RtsUpdInfo) = InfoTblType
labelType (CaseLabel _ CaseReturnInfo) = InfoTblType
labelType (CaseLabel _ CaseReturnPt) = CodeType
labelType (CaseLabel _ CaseVecTbl) = VecTblType
+labelType (TyConLabel _) = ClosureTblType
+labelType (ModuleInitLabel _ ) = CodeType
labelType (IdLabel _ info) =
case info of
case info of
ConInfoTbl -> InfoTblType
StaticInfoTbl -> InfoTblType
- StaticClosure -> ClosureType
_ -> CodeType
labelType _ = DataType
labelDynamic :: CLabel -> Bool
labelDynamic lbl =
case lbl of
- RtsLabel _ -> not opt_Static -- i.e., is the RTS in a DLL or not?
- IdLabel n k | not (isLocallyDefinedName n) -> isDynamicModule (nameModule n)
- DataConLabel n k | not (isLocallyDefinedName n) -> isDynamicModule (nameModule n)
- TyConLabel tc | not (isLocallyDefinedName (getName tc)) -> isDynamicModule (nameModule (getName tc))
- _ -> False
-
+ -- The special case for RtsShouldNeverHappenCode is because the associated address is
+ -- NULL, i.e. not a DLL entry point
+ RtsLabel RtsShouldNeverHappenCode -> False
+ RtsLabel _ -> not opt_Static -- i.e., is the RTS in a DLL or not?
+ IdLabel n k -> isDllName n
+ DataConLabel n k -> isDllName n
+ TyConLabel tc -> isDllName (getName tc)
+ ForeignLabel _ d -> d
+ ModuleInitLabel m -> (not opt_Static) && (not (isHomeModule m))
+ _ -> False
\end{code}
dflt Default case alternative
btm Large bitmap vector
closure Static closure
- static_closure Static closure (???)
con_entry Dynamic Constructor entry code
con_info Dynamic Constructor info table
static_entry Static Constructor entry code
static_info Static Constructor info table
sel_info Selector info table
sel_entry Selector entry code
+ cc Cost centre
+ ccs Cost centre stack
\begin{code}
-- specialised for PprAsm: saves lots of arg passing in NCG
pprCLbl (CaseLabel u CaseBitmap)
= hcat [pprUnique u, pp_cSEP, ptext SLIT("btm")]
-pprCLbl (RtsLabel RtsShouldNeverHappenCode) = ptext SLIT("stg_error_entry")
+pprCLbl (RtsLabel RtsShouldNeverHappenCode) = ptext SLIT("NULL")
+-- used to be stg_error_entry but Windows can't have DLL entry points as static
+-- initialisers, and besides, this ShouldNeverHappen, right?
+
+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 (RtsGCEntryLabel str)) = text str
+pprCLbl (RtsLabel (Rts_Closure str)) = text str
+pprCLbl (RtsLabel (Rts_Info str)) = text str
+pprCLbl (RtsLabel (Rts_Code str)) = text str
-pprCLbl (RtsLabel RtsUpdEntry) = ptext SLIT("Upd_frame_entry")
+pprCLbl (RtsLabel RtsTopTickyCtr) = ptext SLIT("top_ct")
-pprCLbl (RtsLabel RtsBlackHoleInfoTbl) = ptext SLIT("CAF_BLACKHOLE_info")
+pprCLbl (RtsLabel (RtsBlackHoleInfoTbl info)) = ptext info
pprCLbl (RtsLabel (RtsSelectorInfoTbl upd_reqd offset))
- = hcat [ptext SLIT("__sel_"), text (show offset),
+ = hcat [ptext SLIT("stg_sel_"), text (show offset),
ptext (if upd_reqd
then SLIT("_upd_info")
else SLIT("_noupd_info"))
]
pprCLbl (RtsLabel (RtsSelectorEntry upd_reqd offset))
- = hcat [ptext SLIT("__sel_"), text (show offset),
+ = hcat [ptext SLIT("stg_sel_"), text (show offset),
ptext (if upd_reqd
then SLIT("_upd_entry")
else SLIT("_noupd_entry"))
]
pprCLbl (RtsLabel (RtsApInfoTbl upd_reqd arity))
- = hcat [ptext SLIT("__ap_"), text (show arity),
+ = hcat [ptext SLIT("stg_ap_"), text (show arity),
ptext (if upd_reqd
then SLIT("_upd_info")
else SLIT("_noupd_info"))
]
pprCLbl (RtsLabel (RtsApEntry upd_reqd arity))
- = hcat [ptext SLIT("__ap_"), text (show arity),
+ = hcat [ptext SLIT("stg_ap_"), text (show arity),
ptext (if upd_reqd
then SLIT("_upd_entry")
else SLIT("_noupd_entry"))
]
pprCLbl (RtsLabel (RtsPrimOp primop))
- = pprPrimOp primop <> ptext SLIT("_fast")
+ = ppr primop <> ptext SLIT("_fast")
+
+pprCLbl (RtsLabel RtsModuleRegd)
+ = ptext SLIT("module_registered")
+
+pprCLbl (ForeignLabel str _)
+ = ptext str
pprCLbl (TyConLabel tc)
= hcat [ppr tc, pp_cSEP, ptext SLIT("closure_tbl")]
pprCLbl (CC_Label cc) = ppr cc
pprCLbl (CCS_Label ccs) = ppr ccs
+pprCLbl (ModuleInitLabel mod)
+ = ptext SLIT("__stginit_") <> ptext (moduleNameFS (moduleName mod))
+
ppIdFlavor :: IdLabelInfo -> SDoc
ppIdFlavor x = pp_cSEP <>
ppConFlavor x = pp_cSEP <>
(case x of
- StaticClosure -> ptext SLIT("static_closure")
ConEntry -> ptext SLIT("con_entry")
ConInfoTbl -> ptext SLIT("con_info")
StaticConEntry -> ptext SLIT("static_entry")
projects / ghc-hetmet.git / blobdiff