/* -----------------------------------------------------------------------------
- * $Id: Updates.hc,v 1.11 1999/03/22 11:26:03 simonm Exp $
+ * $Id: Updates.hc,v 1.21 1999/11/09 15:47:00 simonmar Exp $
*
* (c) The GHC Team, 1998-1999
*
#include "Rts.h"
#include "RtsUtils.h"
+#include "RtsFlags.h"
#include "HeapStackCheck.h"
#include "Storage.h"
+#include "ProfRts.h"
/*
The update frame return address must be *polymorphic*, that means
update code.
*/
+#if defined(REG_Su)
+#define UPD_FRAME_ENTRY_TEMPLATE(label,ret) \
+ STGFUN(label); \
+ STGFUN(label) \
+ { \
+ FB_ \
+ \
+ Su = (StgUpdateFrame *)((StgUpdateFrame *)Sp)->updatee; \
+ \
+ /* Tick - it must be a con, all the paps are handled \
+ * in stg_upd_PAP and PAP_entry below \
+ */ \
+ TICK_UPD_CON_IN_NEW(sizeW_fromITBL(get_itbl(Su))); \
+ \
+ if (Bdescr(updatee)->back != BaseReg) { \
+ LOCK_CLOSURE(Su); \
+ } \
+ \
+ UPD_IND_NOLOCK(Su,R1.p); \
+ \
+ /* update the updatee with an indirection \
+ * to the return value \
+ */ \
+ \
+ /* reset Su to the next update frame */ \
+ Su = ((StgUpdateFrame *)Sp)->link; \
+ \
+ /* remove the update frame from the stack */ \
+ Sp += sizeofW(StgUpdateFrame); \
+ \
+ JMP_(ret); \
+ FE_ \
+ }
+#else
+
#define UPD_FRAME_ENTRY_TEMPLATE(label,ret) \
STGFUN(label); \
STGFUN(label) \
{ \
StgClosure *updatee; \
FB_ \
- /* tick - ToDo: check this is right */ \
- TICK_UPD_EXISTING(); \
\
updatee = ((StgUpdateFrame *)Sp)->updatee; \
- \
- /* update the updatee with an indirection to the return value */\
- UPD_IND(updatee,R1.p); \
+ \
+ /* Tick - it must be a con, all the paps are handled \
+ * in stg_upd_PAP and PAP_entry below \
+ */ \
+ TICK_UPD_CON_IN_NEW(sizeW_fromITBL(get_itbl(updatee))); \
+ \
+ UPD_IND(updatee, R1.cl); \
\
/* reset Su to the next update frame */ \
Su = ((StgUpdateFrame *)Sp)->link; \
JMP_(ret); \
FE_ \
}
+#endif
UPD_FRAME_ENTRY_TEMPLATE(Upd_frame_entry,ENTRY_CODE(Sp[0]));
UPD_FRAME_ENTRY_TEMPLATE(Upd_frame_0_entry,RET_VEC(Sp[0],0));
* there's a cost-centre-stack in there too).
*/
-VEC_POLY_INFO_TABLE(Upd_frame,UPD_FRAME_BITMAP, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, UPDATE_FRAME);
+VEC_POLY_INFO_TABLE(Upd_frame,UPD_FRAME_BITMAP, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, UPDATE_FRAME,, EF_);
/* -----------------------------------------------------------------------------
Entry Code for a PAP.
really an optimisation? --SDM)
-------------------------------------------------------------------------- */
-INFO_TABLE(PAP_info,PAP_entry,/*special layout*/0,0,PAP,const,EF_,0,0);
+INFO_TABLE(PAP_info,PAP_entry,/*special layout*/0,0,PAP,,EF_,0,0);
STGFUN(PAP_entry)
{
nat Words;
-#ifdef PROFILING
- CostCentreStack *CCS_pap;
-#endif
P_ p;
nat i;
StgPAP *pap;
* CAF/DICT.
*/
- CCS_pap = pap->header.prof.ccs;
- CCCS = (IS_CAF_OR_DICT_OR_SUB_CCS(CCS_pap))
- ? Su->header.prof.ccs
- : CCS_pap;
+ CCCS = Su->header.prof.ccs;
#endif /* PROFILING */
Su = Su->link;
FB_
/* Save the pointer to the function closure that just failed the
- argument satisfaction check
- */
+ * argument satisfaction check
+ */
Fun = R1.cl;
#if defined(GRAN_COUNT)
#endif
/* Just copy the whole block of stack between the stack pointer
- * and the update frame pointer for now. This might include some
- * tagging, which the garbage collector will have to pay attention
- * to, but it's much easier than sorting the words into pointers
- * and non-pointers.
+ * and the update frame pointer.
*/
-
Words = (P_)Su - (P_)Sp;
ASSERT((int)Words >= 0);
#if defined(PROFILING)
- /* set "CC_pap" to go in the updatee (see Sansom thesis, p 183) */
-
- CCS_pap = (CostCentreStack *) Fun->header.prof.ccs;
- if (IS_CAF_OR_DICT_OR_SUB_CCS(CCS_pap)) {
- CCS_pap = CCCS;
- }
+ /* pretend we just entered the function closure */
+ ENTER_CCS_FCL(Fun);
+ CCS_pap = CCCS;
#endif
if (Words == 0) {
* either the new PAP or Node.
*/
- Updatee = Su->updatee;
+ Updatee = Su->updatee;
#if defined(PROFILING)
if (Words != 0) {
#endif
#if defined(PROFILING)
- /*
- * Restore the Cost Centre too (if required); again see Sansom
- * thesis p 183. Take the CC out of the update frame if a CAF/DICT.
- */
- CCCS = IS_CAF_OR_DICT_OR_SUB_CCS(CCS_pap)
- ? Su->header.prof.ccs
- : CCS_pap;
+ CCCS = Su->header.prof.ccs;
+ ENTER_CCS_PAP(CCS_pap);
#endif /* PROFILING */
/* Restore Su */
*/
JMP_(GET_ENTRY(R1.cl));
FE_
-}
+}
/* -----------------------------------------------------------------------------
-------------------------------------------------------------------------- */
-INFO_TABLE(AP_UPD_info,AP_UPD_entry,/*special layout*/0,0,AP_UPD,const,EF_,0,0);
+INFO_TABLE(AP_UPD_info,AP_UPD_entry,/*special layout*/0,0,AP_UPD,,EF_,0,0);
STGFUN(AP_UPD_entry)
{
nat Words;
SEQ_FRAME_ENTRY_TEMPLATE(seq_frame_6_entry,ENTRY_CODE(Sp[0]));
SEQ_FRAME_ENTRY_TEMPLATE(seq_frame_7_entry,ENTRY_CODE(Sp[0]));
-VEC_POLY_INFO_TABLE(seq_frame,1, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, SEQ_FRAME);
+VEC_POLY_INFO_TABLE(seq_frame, UPD_FRAME_BITMAP, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, SEQ_FRAME,, EF_);
/* -----------------------------------------------------------------------------
* The seq infotable
* It is used in deleteThread when reverting blackholes.
* -------------------------------------------------------------------------- */
-INFO_TABLE(seq_info,seq_entry,1,0,FUN,const,EF_,0,0);
+INFO_TABLE(seq_info,seq_entry,1,0,FUN,,EF_,0,0);
STGFUN(seq_entry)
{
FB_
STK_CHK_GEN(sizeofW(StgSeqFrame), NO_PTRS, seq_entry, );
- Sp -= sizeof(StgSeqFrame);
+ Sp -= sizeofW(StgSeqFrame);
PUSH_SEQ_FRAME(Sp);
R1.cl = R1.cl->payload[0];
JMP_(ENTRY_CODE(*R1.p));
* kind of return to the activation record underneath us on the stack.
*/
-VEC_POLY_INFO_TABLE(catch_frame, CATCH_FRAME_BITMAP, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, CATCH_FRAME);
+VEC_POLY_INFO_TABLE(catch_frame, CATCH_FRAME_BITMAP, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, CATCH_FRAME,, EF_);
/* -----------------------------------------------------------------------------
* The catch infotable
* It is used in deleteThread when reverting blackholes.
* -------------------------------------------------------------------------- */
-INFO_TABLE(catch_info,catch_entry,2,0,FUN,const,EF_,0,0);
+INFO_TABLE(catch_info,catch_entry,2,0,FUN,,EF_,0,0);
STGFUN(catch_entry)
{
FB_
* It is used in raisezh_fast to update thunks on the update list
* -------------------------------------------------------------------------- */
-INFO_TABLE(raise_info,raise_entry,1,0,FUN,const,EF_,0,0);
+INFO_TABLE(raise_info,raise_entry,1,0,FUN,,EF_,0,0);
STGFUN(raise_entry)
{
FB_
break;
case STOP_FRAME:
- barf("uncaught exception");
+ barf("raisezh_fast: STOP_FRAME");
default:
barf("raisezh_fast: weird activation record");
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