3 * Copyright (c) 1991-2000, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "For the fashion of Minas Tirith was such that it was built on seven
16 #define PERL_IN_SCOPE_C
19 #if defined(PERL_FLEXIBLE_EXCEPTIONS)
21 Perl_default_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
22 protect_body_t body, ...)
27 ret = vdefault_protect(pcur_env, excpt, body, &args);
33 Perl_vdefault_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
34 protect_body_t body, va_list *args)
44 ret = CALL_FPTR(body)(aTHX_ *args);
52 Perl_stack_grow(pTHX_ SV **sp, SV **p, int n)
55 #if defined(DEBUGGING) && !defined(USE_THREADS)
56 static int growing = 0;
61 #ifndef STRESS_REALLOC
62 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
64 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
66 #if defined(DEBUGGING) && !defined(USE_THREADS)
72 #ifndef STRESS_REALLOC
73 #define GROW(old) ((old) * 3 / 2)
75 #define GROW(old) ((old) + 1)
79 Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
82 New(56, si, 1, PERL_SI);
83 si->si_stack = newAV();
84 AvREAL_off(si->si_stack);
85 av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
86 AvALLOC(si->si_stack)[0] = &PL_sv_undef;
87 AvFILLp(si->si_stack) = 0;
90 si->si_cxmax = cxitems - 1;
92 si->si_type = PERLSI_UNDEF;
93 New(56, si->si_cxstack, cxitems, PERL_CONTEXT);
101 cxstack_max = GROW(cxstack_max);
102 Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
103 return cxstack_ix + 1;
107 Perl_push_return(pTHX_ OP *retop)
110 if (PL_retstack_ix == PL_retstack_max) {
111 PL_retstack_max = GROW(PL_retstack_max);
112 Renew(PL_retstack, PL_retstack_max, OP*);
114 PL_retstack[PL_retstack_ix++] = retop;
118 Perl_pop_return(pTHX)
121 if (PL_retstack_ix > 0)
122 return PL_retstack[--PL_retstack_ix];
128 Perl_push_scope(pTHX)
131 if (PL_scopestack_ix == PL_scopestack_max) {
132 PL_scopestack_max = GROW(PL_scopestack_max);
133 Renew(PL_scopestack, PL_scopestack_max, I32);
135 PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
143 I32 oldsave = PL_scopestack[--PL_scopestack_ix];
144 LEAVE_SCOPE(oldsave);
148 Perl_markstack_grow(pTHX)
151 I32 oldmax = PL_markstack_max - PL_markstack;
152 I32 newmax = GROW(oldmax);
154 Renew(PL_markstack, newmax, I32);
155 PL_markstack_ptr = PL_markstack + oldmax;
156 PL_markstack_max = PL_markstack + newmax;
160 Perl_savestack_grow(pTHX)
163 PL_savestack_max = GROW(PL_savestack_max) + 4;
164 Renew(PL_savestack, PL_savestack_max, ANY);
170 Perl_tmps_grow(pTHX_ I32 n)
173 #ifndef STRESS_REALLOC
175 n = (PL_tmps_max < 512) ? 128 : 512;
177 PL_tmps_max = PL_tmps_ix + n + 1;
178 Renew(PL_tmps_stack, PL_tmps_max, SV*);
186 /* XXX should tmps_floor live in cxstack? */
187 I32 myfloor = PL_tmps_floor;
188 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
189 SV* sv = PL_tmps_stack[PL_tmps_ix];
190 PL_tmps_stack[PL_tmps_ix--] = Nullsv;
193 SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
199 S_save_scalar_at(pTHX_ SV **sptr)
205 sv = *sptr = NEWSV(0,0);
206 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
207 sv_upgrade(sv, SvTYPE(osv));
208 if (SvGMAGICAL(osv)) {
210 bool oldtainted = PL_tainted;
212 if (PL_tainting && PL_tainted && (mg = mg_find(osv, 't'))) {
213 SAVESPTR(mg->mg_obj);
216 SvFLAGS(osv) |= (SvFLAGS(osv) &
217 (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
218 PL_tainted = oldtainted;
220 SvMAGIC(sv) = SvMAGIC(osv);
221 SvFLAGS(sv) |= SvMAGICAL(osv);
230 Perl_save_scalar(pTHX_ GV *gv)
233 SV **sptr = &GvSV(gv);
235 SSPUSHPTR(SvREFCNT_inc(gv));
236 SSPUSHPTR(SvREFCNT_inc(*sptr));
238 return save_scalar_at(sptr);
242 Perl_save_svref(pTHX_ SV **sptr)
247 SSPUSHPTR(SvREFCNT_inc(*sptr));
248 SSPUSHINT(SAVEt_SVREF);
249 return save_scalar_at(sptr);
252 /* Like save_svref(), but doesn't deal with magic. Can be used to
253 * restore a global SV to its prior contents, freeing new value. */
255 Perl_save_generic_svref(pTHX_ SV **sptr)
260 SSPUSHPTR(SvREFCNT_inc(*sptr));
261 SSPUSHINT(SAVEt_GENERIC_SVREF);
265 Perl_save_gp(pTHX_ GV *gv, I32 empty)
269 SSPUSHIV((IV)SvLEN(gv));
270 SvLEN(gv) = 0; /* forget that anything was allocated here */
271 SSPUSHIV((IV)SvCUR(gv));
272 SSPUSHPTR(SvPVX(gv));
274 SSPUSHPTR(SvREFCNT_inc(gv));
281 Newz(602, gp, 1, GP);
284 PL_sub_generation++; /* taking a method out of circulation */
285 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
287 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
289 GvGP(gv) = gp_ref(gp);
290 GvSV(gv) = NEWSV(72,0);
291 GvLINE(gv) = CopLINE(PL_curcop);
301 Perl_save_ary(pTHX_ GV *gv)
307 if (!AvREAL(oav) && AvREIFY(oav))
314 GvAV(gv) = Null(AV*);
317 SvMAGIC(av) = SvMAGIC(oav);
318 SvFLAGS((SV*)av) |= SvMAGICAL(oav);
329 Perl_save_hash(pTHX_ GV *gv)
336 SSPUSHPTR(ohv = GvHVn(gv));
339 GvHV(gv) = Null(HV*);
342 SvMAGIC(hv) = SvMAGIC(ohv);
343 SvFLAGS((SV*)hv) |= SvMAGICAL(ohv);
354 Perl_save_item(pTHX_ register SV *item)
357 register SV *sv = NEWSV(0,0);
361 SSPUSHPTR(item); /* remember the pointer */
362 SSPUSHPTR(sv); /* remember the value */
363 SSPUSHINT(SAVEt_ITEM);
367 Perl_save_int(pTHX_ int *intp)
373 SSPUSHINT(SAVEt_INT);
377 Perl_save_long(pTHX_ long int *longp)
383 SSPUSHINT(SAVEt_LONG);
387 Perl_save_I32(pTHX_ I32 *intp)
393 SSPUSHINT(SAVEt_I32);
397 Perl_save_I16(pTHX_ I16 *intp)
403 SSPUSHINT(SAVEt_I16);
407 Perl_save_I8(pTHX_ I8 *bytep)
417 Perl_save_iv(pTHX_ IV *ivp)
426 /* Cannot use save_sptr() to store a char* since the SV** cast will
427 * force word-alignment and we'll miss the pointer.
430 Perl_save_pptr(pTHX_ char **pptr)
436 SSPUSHINT(SAVEt_PPTR);
440 Perl_save_vptr(pTHX_ void *ptr)
444 SSPUSHPTR(*(char**)ptr);
446 SSPUSHINT(SAVEt_VPTR);
450 Perl_save_sptr(pTHX_ SV **sptr)
456 SSPUSHINT(SAVEt_SPTR);
460 Perl_save_threadsv(pTHX_ PADOFFSET i)
464 SV **svp = &THREADSV(i); /* XXX Change to save by offset */
465 DEBUG_S(PerlIO_printf(Perl_debug_log, "save_threadsv %"UVuf": %p %p:%s\n",
466 (UV)i, svp, *svp, SvPEEK(*svp)));
470 Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
472 #endif /* USE_THREADS */
476 Perl_save_nogv(pTHX_ GV *gv)
481 SSPUSHINT(SAVEt_NSTAB);
485 Perl_save_hptr(pTHX_ HV **hptr)
491 SSPUSHINT(SAVEt_HPTR);
495 Perl_save_aptr(pTHX_ AV **aptr)
501 SSPUSHINT(SAVEt_APTR);
505 Perl_save_freesv(pTHX_ SV *sv)
510 SSPUSHINT(SAVEt_FREESV);
514 Perl_save_freeop(pTHX_ OP *o)
519 SSPUSHINT(SAVEt_FREEOP);
523 Perl_save_freepv(pTHX_ char *pv)
528 SSPUSHINT(SAVEt_FREEPV);
532 Perl_save_clearsv(pTHX_ SV **svp)
536 SSPUSHLONG((long)(svp-PL_curpad));
537 SSPUSHINT(SAVEt_CLEARSV);
541 Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
547 SSPUSHPTR(SvREFCNT_inc(hv));
548 SSPUSHINT(SAVEt_DELETE);
552 Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
558 for (i = 1; i <= maxsarg; i++) {
560 sv_setsv(sv,sarg[i]);
562 SSPUSHPTR(sarg[i]); /* remember the pointer */
563 SSPUSHPTR(sv); /* remember the value */
564 SSPUSHINT(SAVEt_ITEM);
569 Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
575 SSPUSHINT(SAVEt_DESTRUCTOR);
579 Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
585 SSPUSHINT(SAVEt_DESTRUCTOR_X);
589 Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
593 SSPUSHPTR(SvREFCNT_inc(av));
595 SSPUSHPTR(SvREFCNT_inc(*sptr));
596 SSPUSHINT(SAVEt_AELEM);
597 save_scalar_at(sptr);
601 Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
605 SSPUSHPTR(SvREFCNT_inc(hv));
606 SSPUSHPTR(SvREFCNT_inc(key));
607 SSPUSHPTR(SvREFCNT_inc(*sptr));
608 SSPUSHINT(SAVEt_HELEM);
609 save_scalar_at(sptr);
622 Perl_save_alloc(pTHX_ I32 size, I32 pad)
625 register I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
626 - (char*)PL_savestack);
627 register I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
629 /* SSCHECK may not be good enough */
630 while (PL_savestack_ix + elems + 2 > PL_savestack_max)
633 PL_savestack_ix += elems;
635 SSPUSHINT(SAVEt_ALLOC);
640 Perl_leave_scope(pTHX_ I32 base)
652 Perl_croak(aTHX_ "panic: corrupt saved stack index");
653 while (PL_savestack_ix > base) {
655 case SAVEt_ITEM: /* normal string */
656 value = (SV*)SSPOPPTR;
658 sv_replace(sv,value);
663 case SAVEt_SV: /* scalar reference */
664 value = (SV*)SSPOPPTR;
669 case SAVEt_GENERIC_SVREF: /* generic sv */
670 value = (SV*)SSPOPPTR;
679 case SAVEt_SVREF: /* scalar reference */
680 value = (SV*)SSPOPPTR;
684 DEBUG_S(PerlIO_printf(Perl_debug_log,
685 "restore svref: %p %p:%s -> %p:%s\n",
686 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
687 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
688 SvTYPE(sv) != SVt_PVGV)
690 (void)SvUPGRADE(value, SvTYPE(sv));
691 SvMAGIC(value) = SvMAGIC(sv);
692 SvFLAGS(value) |= SvMAGICAL(sv);
696 else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
697 SvTYPE(value) != SVt_PVGV)
699 SvFLAGS(value) |= (SvFLAGS(value) &
700 (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
701 SvMAGICAL_off(value);
711 case SAVEt_AV: /* array reference */
715 AV *goner = GvAV(gv);
716 SvMAGIC(av) = SvMAGIC(goner);
717 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
718 SvMAGICAL_off(goner);
729 case SAVEt_HV: /* hash reference */
733 HV *goner = GvHV(gv);
734 SvMAGIC(hv) = SvMAGIC(goner);
735 SvFLAGS(hv) |= SvMAGICAL(goner);
736 SvMAGICAL_off(goner);
747 case SAVEt_INT: /* int reference */
749 *(int*)ptr = (int)SSPOPINT;
751 case SAVEt_LONG: /* long reference */
753 *(long*)ptr = (long)SSPOPLONG;
755 case SAVEt_I32: /* I32 reference */
757 *(I32*)ptr = (I32)SSPOPINT;
759 case SAVEt_I16: /* I16 reference */
761 *(I16*)ptr = (I16)SSPOPINT;
763 case SAVEt_I8: /* I8 reference */
765 *(I8*)ptr = (I8)SSPOPINT;
767 case SAVEt_IV: /* IV reference */
769 *(IV*)ptr = (IV)SSPOPIV;
771 case SAVEt_SPTR: /* SV* reference */
773 *(SV**)ptr = (SV*)SSPOPPTR;
775 case SAVEt_VPTR: /* random* reference */
776 case SAVEt_PPTR: /* char* reference */
778 *(char**)ptr = (char*)SSPOPPTR;
780 case SAVEt_HPTR: /* HV* reference */
782 *(HV**)ptr = (HV*)SSPOPPTR;
784 case SAVEt_APTR: /* AV* reference */
786 *(AV**)ptr = (AV*)SSPOPPTR;
790 (void)sv_clear((SV*)gv);
792 case SAVEt_GP: /* scalar reference */
795 if (SvPVX(gv) && SvLEN(gv) > 0) {
798 SvPVX(gv) = (char *)SSPOPPTR;
799 SvCUR(gv) = (STRLEN)SSPOPIV;
800 SvLEN(gv) = (STRLEN)SSPOPIV;
804 PL_sub_generation++; /* putting a method back into circulation */
809 SvREFCNT_dec((SV*)ptr);
814 PL_curpad = AvARRAY(PL_comppad);
819 Safefree((char*)ptr);
822 ptr = (void*)&PL_curpad[SSPOPLONG];
824 /* Can clear pad variable in place? */
825 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
826 if (SvTHINKFIRST(sv))
831 switch (SvTYPE(sv)) {
841 Perl_croak(aTHX_ "panic: leave_scope pad code");
853 else { /* Someone has a claim on this, so abandon it. */
854 U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP);
855 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
856 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
857 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
858 default: *(SV**)ptr = NEWSV(0,0); break;
860 SvREFCNT_dec(sv); /* Cast current value to the winds. */
861 SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */
868 (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
872 case SAVEt_DESTRUCTOR:
876 case SAVEt_DESTRUCTOR_X:
878 (*SSPOPDXPTR)(aTHXo_ ptr);
880 case SAVEt_REGCONTEXT:
883 PL_savestack_ix -= i; /* regexp must have croaked */
885 case SAVEt_STACK_POS: /* Position on Perl stack */
887 PL_stack_sp = PL_stack_base + i;
889 case SAVEt_AELEM: /* array element */
890 value = (SV*)SSPOPPTR;
893 ptr = av_fetch(av,i,1);
896 if (sv && sv != &PL_sv_undef) {
897 if (SvTIED_mg((SV*)av, 'P'))
898 (void)SvREFCNT_inc(sv);
906 case SAVEt_HELEM: /* hash element */
907 value = (SV*)SSPOPPTR;
910 ptr = hv_fetch_ent(hv, sv, 1, 0);
912 SV *oval = HeVAL((HE*)ptr);
913 if (oval && oval != &PL_sv_undef) {
914 ptr = &HeVAL((HE*)ptr);
915 if (SvTIED_mg((SV*)hv, 'P'))
916 (void)SvREFCNT_inc(*(SV**)ptr);
927 PL_op = (OP*)SSPOPPTR;
930 if (GvHV(PL_hintgv)) {
931 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
932 GvHV(PL_hintgv) = NULL;
934 *(I32*)&PL_hints = (I32)SSPOPINT;
937 PL_comppad = (AV*)SSPOPPTR;
939 PL_curpad = AvARRAY(PL_comppad);
941 PL_curpad = Null(SV**);
944 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
950 Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
954 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
955 if (CxTYPE(cx) != CXt_SUBST) {
956 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
957 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
958 PTR2UV(cx->blk_oldcop));
959 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
960 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
961 PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp);
962 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
963 PTR2UV(cx->blk_oldpm));
964 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
966 switch (CxTYPE(cx)) {
971 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
972 PTR2UV(cx->blk_sub.cv));
973 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
974 PTR2UV(cx->blk_sub.gv));
975 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
976 PTR2UV(cx->blk_sub.dfoutgv));
977 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
978 (int)cx->blk_sub.hasargs);
981 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
982 PTR2UV(cx->blk_sub.cv));
983 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
984 (long)cx->blk_sub.olddepth);
985 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
986 (int)cx->blk_sub.hasargs);
987 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
988 (int)cx->blk_sub.lval);
991 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
992 (long)cx->blk_eval.old_in_eval);
993 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
994 PL_op_name[cx->blk_eval.old_op_type],
995 PL_op_desc[cx->blk_eval.old_op_type]);
996 if (cx->blk_eval.old_namesv)
997 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
998 SvPVX(cx->blk_eval.old_namesv));
999 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1000 PTR2UV(cx->blk_eval.old_eval_root));
1004 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
1005 cx->blk_loop.label);
1006 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
1007 (long)cx->blk_loop.resetsp);
1008 PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
1009 PTR2UV(cx->blk_loop.redo_op));
1010 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
1011 PTR2UV(cx->blk_loop.next_op));
1012 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
1013 PTR2UV(cx->blk_loop.last_op));
1014 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
1015 (long)cx->blk_loop.iterix);
1016 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1017 PTR2UV(cx->blk_loop.iterary));
1018 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1019 PTR2UV(CxITERVAR(cx)));
1021 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1022 PTR2UV(cx->blk_loop.itersave));
1023 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1024 PTR2UV(cx->blk_loop.iterlval));
1028 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
1029 (long)cx->sb_iters);
1030 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
1031 (long)cx->sb_maxiters);
1032 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1033 (long)cx->sb_rflags);
1034 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
1036 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
1038 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1039 PTR2UV(cx->sb_dstr));
1040 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1041 PTR2UV(cx->sb_targ));
1042 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1044 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1046 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1047 PTR2UV(cx->sb_strend));
1048 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1049 PTR2UV(cx->sb_rxres));
1052 #endif /* DEBUGGING */