import {-# SOURCE #-} StixPrim ( amodeToStix )
import MachRegs
-import AbsCSyn ( CStmtMacro(..), MagicId(..), CAddrMode, tagreg,
+import AbsCSyn ( CStmtMacro(..), CAddrMode, tagreg,
CCheckMacro(..) )
-import Constants ( uF_RET, uF_SU, uF_UPDATEE, uF_SIZE, sEQ_FRAME_SIZE )
-import CallConv ( cCallConv )
+import Constants ( uF_RET, uF_SU, uF_UPDATEE, uF_SIZE )
+import ForeignCall ( CCallConv(..) )
import PrimOp ( PrimOp(..) )
import PrimRep ( PrimRep(..) )
import Stix
import UniqSupply ( returnUs, thenUs, UniqSM )
import CLabel ( mkBlackHoleInfoTableLabel, mkIndStaticInfoLabel,
mkIndInfoLabel, mkUpdInfoLabel, mkSeqInfoLabel,
- mkRtsGCEntryLabel, mkStgUpdatePAPLabel )
+ mkRtsGCEntryLabel )
\end{code}
The @ARGS_CHK_A{_LOAD_NODE}@ macros check for sufficient arguments on
macroCode UPD_CAF args
= let
[cafptr,bhptr] = map amodeToStix args
+ new_caf = StCall SLIT("newCAF") CCallConv VoidRep [cafptr]
w0 = StInd PtrRep cafptr
w1 = StInd PtrRep (StIndex PtrRep cafptr fixedHS)
- a1 = StAssign PtrRep w0 ind_static_info
- a2 = StAssign PtrRep w1 bhptr
- a3 = StCall SLIT("newCAF") cCallConv VoidRep [cafptr]
+ a1 = StAssign PtrRep w1 bhptr
+ a2 = StAssign PtrRep w0 ind_static_info
in
- returnUs (\xs -> a1 : a2 : a3 : xs)
+ returnUs (\xs -> new_caf : a1 : a2 : xs)
\end{code}
-----------------------------------------------------------------------------
macroCode REGISTER_FOREIGN_EXPORT [arg]
= returnUs (
- \xs -> StCall SLIT("getStablePtr") cCallConv VoidRep [amodeToStix arg]
+ \xs -> StCall SLIT("getStablePtr") CCallConv VoidRep [amodeToStix arg]
: xs
)
ind_info = StCLbl mkIndInfoLabel
upd_frame_info = StCLbl mkUpdInfoLabel
seq_frame_info = StCLbl mkSeqInfoLabel
-stg_update_PAP = StCLbl mkStgUpdatePAPLabel
--- Some common call trees
-updatePAP, stackOverflow :: StixTree
+stg_update_PAP = regTableEntry CodePtrRep OFFSET_stgUpdatePAP
+
+-- Some common call trees
-updatePAP = StJump stg_update_PAP
-stackOverflow = StCall SLIT("StackOverflow") cCallConv VoidRep []
+updatePAP :: StixTree
+updatePAP = StJump NoDestInfo stg_update_PAP
\end{code}
-----------------------------------------------------------------------------
let args_stix = map amodeToStix args
newHp wds = StIndex PtrRep stgHp wds
assign_hp wds = StAssign PtrRep stgHp (newHp wds)
+ hp_alloc wds = StAssign IntRep stgHpAlloc wds
test_hp = StPrim AddrLeOp [stgHp, stgHpLim]
cjmp_hp = StCondJump ulbl_pass test_hp
HP_CHK_NP ->
let [words,ptrs] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_enter ptrs : join : xs))
+ assts (hp_alloc words : gc_enter ptrs : join : xs))
HP_CHK_SEQ_NP ->
let [words,ptrs] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_seq ptrs : join : xs))
+ assts (hp_alloc words : gc_seq ptrs : join : xs))
STK_CHK_NP ->
let [words,ptrs] = args_stix
in (\xs -> cjmp_sp_fail sp_words :
assign_hp hp_words : cjmp_hp :
fail :
- assts (gc_enter ptrs : join : xs))
+ assts (hp_alloc hp_words : gc_enter ptrs
+ : join : xs))
HP_CHK ->
let [words,ret,r,ptrs] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (assign_ret r ret : gc_chk ptrs : join : xs))
+ assts (hp_alloc words : assign_ret r ret
+ : gc_chk ptrs : join : xs))
STK_CHK ->
let [words,ret,r,ptrs] = args_stix
in (\xs -> cjmp_sp_fail sp_words :
assign_hp hp_words : cjmp_hp :
fail :
- assts (assign_ret r ret : gc_chk ptrs : join : xs))
+ assts (hp_alloc hp_words : assign_ret r ret
+ : gc_chk ptrs : join : xs))
HP_CHK_NOREGS ->
let [words] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_noregs : join : xs))
+ assts (hp_alloc words : gc_noregs : join : xs))
HP_CHK_UNPT_R1 ->
let [words] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_unpt_r1 : join : xs))
+ assts (hp_alloc words : gc_unpt_r1 : join : xs))
HP_CHK_UNBX_R1 ->
let [words] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_unbx_r1 : join : xs))
+ assts (hp_alloc words : gc_unbx_r1 : join : xs))
HP_CHK_F1 ->
let [words] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_f1 : join : xs))
+ assts (hp_alloc words : gc_f1 : join : xs))
HP_CHK_D1 ->
let [words] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (gc_d1 : join : xs))
+ assts (hp_alloc words : gc_d1 : join : xs))
HP_CHK_UT_ALT ->
let [words,ptrs,nonptrs,r,ret] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (assign_ret r ret : gc_ut ptrs nonptrs
+ assts (hp_alloc words : assign_ret r ret
+ : gc_ut ptrs nonptrs
: join : xs))
HP_CHK_GEN ->
let [words,liveness,reentry] = args_stix
in (\xs -> assign_hp words : cjmp_hp :
- assts (assign_liveness liveness :
+ assts (hp_alloc words : assign_liveness liveness :
assign_reentry reentry :
gc_gen : join : xs))
)
-
+
-- Various canned heap-check routines
mkStJump_to_GCentry :: String -> StixTree
mkStJump_to_GCentry gcname
-- | opt_Static
- = StJump (StCLbl (mkRtsGCEntryLabel gcname))
+ = StJump NoDestInfo (StCLbl (mkRtsGCEntryLabel gcname))
-- | otherwise -- it's in a different DLL
-- = StJump (StInd PtrRep (StLitLbl True sdoc))
+gc_chk (StInt 0) = StJump NoDestInfo (regTableEntry CodePtrRep OFFSET_stgChk0)
+gc_chk (StInt 1) = StJump NoDestInfo (regTableEntry CodePtrRep OFFSET_stgChk1)
gc_chk (StInt n) = mkStJump_to_GCentry ("stg_chk_" ++ show n)
+
+gc_enter (StInt 1) = StJump NoDestInfo (regTableEntry CodePtrRep OFFSET_stgGCEnter1)
gc_enter (StInt n) = mkStJump_to_GCentry ("stg_gc_enter_" ++ show n)
+
gc_seq (StInt n) = mkStJump_to_GCentry ("stg_gc_seq_" ++ show n)
gc_noregs = mkStJump_to_GCentry "stg_gc_noregs"
gc_unpt_r1 = mkStJump_to_GCentry "stg_gc_unpt_r1"