3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * "For the fashion of Minas Tirith was such that it was built on seven
17 #define PERL_IN_SCOPE_C
20 #if defined(PERL_FLEXIBLE_EXCEPTIONS)
22 Perl_default_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
23 protect_body_t body, ...)
28 ret = vdefault_protect(pcur_env, excpt, body, &args);
34 Perl_vdefault_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
35 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 #ifndef STRESS_REALLOC
56 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
58 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
63 #ifndef STRESS_REALLOC
64 #define GROW(old) ((old) * 3 / 2)
66 #define GROW(old) ((old) + 1)
70 Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
73 New(56, si, 1, PERL_SI);
74 si->si_stack = newAV();
75 AvREAL_off(si->si_stack);
76 av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
77 AvALLOC(si->si_stack)[0] = &PL_sv_undef;
78 AvFILLp(si->si_stack) = 0;
81 si->si_cxmax = cxitems - 1;
83 si->si_type = PERLSI_UNDEF;
84 New(56, si->si_cxstack, cxitems, PERL_CONTEXT);
85 /* Without any kind of initialising PUSHSUBST()
86 * in pp_subst() will read uninitialised heap. */
87 Poison(si->si_cxstack, cxitems, PERL_CONTEXT);
94 IV old_max = cxstack_max;
95 cxstack_max = GROW(cxstack_max);
96 Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
97 /* Without any kind of initialising deep enough recursion
98 * will end up reading uninitialised PERL_CONTEXTs. */
99 Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
100 return cxstack_ix + 1;
103 /* XXX for 5.8.X BINCOMPAT only */
105 Perl_push_return(pTHX_ OP *retop)
107 Perl_croak(aTHX_ "panic: obsolete function push_return() called");
110 /* XXX for 5.8.X BINCOMPAT only */
112 Perl_pop_return(pTHX)
114 Perl_croak(aTHX_ "panic: obsolete function pop_return() called");
118 Perl_push_scope(pTHX)
120 if (PL_scopestack_ix == PL_scopestack_max) {
121 PL_scopestack_max = GROW(PL_scopestack_max);
122 Renew(PL_scopestack, PL_scopestack_max, I32);
124 PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
131 I32 oldsave = PL_scopestack[--PL_scopestack_ix];
132 LEAVE_SCOPE(oldsave);
136 Perl_markstack_grow(pTHX)
138 I32 oldmax = PL_markstack_max - PL_markstack;
139 I32 newmax = GROW(oldmax);
141 Renew(PL_markstack, newmax, I32);
142 PL_markstack_ptr = PL_markstack + oldmax;
143 PL_markstack_max = PL_markstack + newmax;
147 Perl_savestack_grow(pTHX)
149 PL_savestack_max = GROW(PL_savestack_max) + 4;
150 Renew(PL_savestack, PL_savestack_max, ANY);
154 Perl_savestack_grow_cnt(pTHX_ I32 need)
156 PL_savestack_max = PL_savestack_ix + need;
157 Renew(PL_savestack, PL_savestack_max, ANY);
163 Perl_tmps_grow(pTHX_ I32 n)
165 #ifndef STRESS_REALLOC
167 n = (PL_tmps_max < 512) ? 128 : 512;
169 PL_tmps_max = PL_tmps_ix + n + 1;
170 Renew(PL_tmps_stack, PL_tmps_max, SV*);
177 /* XXX should tmps_floor live in cxstack? */
178 I32 myfloor = PL_tmps_floor;
179 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
180 SV* sv = PL_tmps_stack[PL_tmps_ix];
181 PL_tmps_stack[PL_tmps_ix--] = Nullsv;
182 if (sv && sv != &PL_sv_undef) {
184 SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
190 S_save_scalar_at(pTHX_ SV **sptr)
195 sv = *sptr = NEWSV(0,0);
196 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
198 sv_upgrade(sv, SvTYPE(osv));
199 if (SvGMAGICAL(osv)) {
200 bool oldtainted = PL_tainted;
201 mg_get(osv); /* note, can croak! */
202 if (PL_tainting && PL_tainted &&
203 (mg = mg_find(osv, PERL_MAGIC_taint))) {
204 SAVESPTR(mg->mg_obj);
207 SvFLAGS(osv) |= (SvFLAGS(osv) &
208 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
209 PL_tainted = oldtainted;
211 SvMAGIC(sv) = SvMAGIC(osv);
212 /* if it's a special scalar or if it has no 'set' magic,
213 * propagate the SvREADONLY flag. --rgs 20030922 */
214 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
215 if (mg->mg_type == '\0'
216 || !(mg->mg_virtual && mg->mg_virtual->svt_set))
218 SvFLAGS(sv) |= SvREADONLY(osv);
222 SvFLAGS(sv) |= SvMAGICAL(osv);
223 /* XXX SvMAGIC() is *shared* between osv and sv. This can
224 * lead to coredumps when both SVs are destroyed without one
225 * of their SvMAGIC() slots being NULLed. */
234 Perl_save_scalar(pTHX_ GV *gv)
236 SV **sptr = &GvSV(gv);
238 SSPUSHPTR(SvREFCNT_inc(gv));
239 SSPUSHPTR(SvREFCNT_inc(*sptr));
241 return save_scalar_at(sptr);
245 Perl_save_svref(pTHX_ SV **sptr)
249 SSPUSHPTR(SvREFCNT_inc(*sptr));
250 SSPUSHINT(SAVEt_SVREF);
251 return save_scalar_at(sptr);
254 /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
255 * restore a global SV to its prior contents, freeing new value. */
257 Perl_save_generic_svref(pTHX_ SV **sptr)
261 SSPUSHPTR(SvREFCNT_inc(*sptr));
262 SSPUSHINT(SAVEt_GENERIC_SVREF);
265 /* Like save_pptr(), but also Safefree()s the new value if it is different
266 * from the old one. Can be used to restore a global char* to its prior
267 * contents, freeing new value. */
269 Perl_save_generic_pvref(pTHX_ char **str)
274 SSPUSHINT(SAVEt_GENERIC_PVREF);
277 /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
278 * Can be used to restore a shared global char* to its prior
279 * contents, freeing new value. */
281 Perl_save_shared_pvref(pTHX_ char **str)
286 SSPUSHINT(SAVEt_SHARED_PVREF);
289 /* set the SvFLAGS specified by mask to the values in val */
292 Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
298 SSPUSHINT(SAVEt_SET_SVFLAGS);
302 Perl_save_gp(pTHX_ GV *gv, I32 empty)
305 SSPUSHIV((IV)SvLEN(gv));
306 SvLEN(gv) = 0; /* forget that anything was allocated here */
307 SSPUSHIV((IV)SvCUR(gv));
308 SSPUSHPTR(SvPVX(gv));
310 SSPUSHPTR(SvREFCNT_inc(gv));
317 Newz(602, gp, 1, GP);
320 PL_sub_generation++; /* taking a method out of circulation */
321 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
323 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
325 GvGP(gv) = gp_ref(gp);
326 GvSV(gv) = NEWSV(72,0);
327 GvLINE(gv) = CopLINE(PL_curcop);
328 GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : "";
338 Perl_save_ary(pTHX_ GV *gv)
343 if (!AvREAL(oav) && AvREIFY(oav))
350 GvAV(gv) = Null(AV*);
353 SvMAGIC(av) = SvMAGIC(oav);
354 SvFLAGS((SV*)av) |= SvMAGICAL(oav);
365 Perl_save_hash(pTHX_ GV *gv)
371 SSPUSHPTR(ohv = GvHVn(gv));
374 GvHV(gv) = Null(HV*);
377 SvMAGIC(hv) = SvMAGIC(ohv);
378 SvFLAGS((SV*)hv) |= SvMAGICAL(ohv);
389 Perl_save_item(pTHX_ register SV *item)
391 register SV *sv = NEWSV(0,0);
395 SSPUSHPTR(item); /* remember the pointer */
396 SSPUSHPTR(sv); /* remember the value */
397 SSPUSHINT(SAVEt_ITEM);
401 Perl_save_int(pTHX_ int *intp)
406 SSPUSHINT(SAVEt_INT);
410 Perl_save_long(pTHX_ long int *longp)
415 SSPUSHINT(SAVEt_LONG);
419 Perl_save_bool(pTHX_ bool *boolp)
424 SSPUSHINT(SAVEt_BOOL);
428 Perl_save_I32(pTHX_ I32 *intp)
433 SSPUSHINT(SAVEt_I32);
437 Perl_save_I16(pTHX_ I16 *intp)
442 SSPUSHINT(SAVEt_I16);
446 Perl_save_I8(pTHX_ I8 *bytep)
455 Perl_save_iv(pTHX_ IV *ivp)
463 /* Cannot use save_sptr() to store a char* since the SV** cast will
464 * force word-alignment and we'll miss the pointer.
467 Perl_save_pptr(pTHX_ char **pptr)
472 SSPUSHINT(SAVEt_PPTR);
476 Perl_save_vptr(pTHX_ void *ptr)
479 SSPUSHPTR(*(char**)ptr);
481 SSPUSHINT(SAVEt_VPTR);
485 Perl_save_sptr(pTHX_ SV **sptr)
490 SSPUSHINT(SAVEt_SPTR);
494 Perl_save_padsv(pTHX_ PADOFFSET off)
497 ASSERT_CURPAD_ACTIVE("save_padsv");
498 SSPUSHPTR(PL_curpad[off]);
499 SSPUSHPTR(PL_comppad);
500 SSPUSHLONG((long)off);
501 SSPUSHINT(SAVEt_PADSV);
505 Perl_save_threadsv(pTHX_ PADOFFSET i)
507 Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
512 Perl_save_nogv(pTHX_ GV *gv)
516 SSPUSHINT(SAVEt_NSTAB);
520 Perl_save_hptr(pTHX_ HV **hptr)
525 SSPUSHINT(SAVEt_HPTR);
529 Perl_save_aptr(pTHX_ AV **aptr)
534 SSPUSHINT(SAVEt_APTR);
538 Perl_save_freesv(pTHX_ SV *sv)
542 SSPUSHINT(SAVEt_FREESV);
546 Perl_save_mortalizesv(pTHX_ SV *sv)
550 SSPUSHINT(SAVEt_MORTALIZESV);
554 Perl_save_freeop(pTHX_ OP *o)
558 SSPUSHINT(SAVEt_FREEOP);
562 Perl_save_freepv(pTHX_ char *pv)
566 SSPUSHINT(SAVEt_FREEPV);
570 Perl_save_clearsv(pTHX_ SV **svp)
572 ASSERT_CURPAD_ACTIVE("save_clearsv");
574 SSPUSHLONG((long)(svp-PL_curpad));
575 SSPUSHINT(SAVEt_CLEARSV);
576 SvPADSTALE_off(*svp); /* mark lexical as active */
580 Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
585 SSPUSHPTR(SvREFCNT_inc(hv));
586 SSPUSHINT(SAVEt_DELETE);
590 Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
595 for (i = 1; i <= maxsarg; i++) {
597 sv_setsv(sv,sarg[i]);
599 SSPUSHPTR(sarg[i]); /* remember the pointer */
600 SSPUSHPTR(sv); /* remember the value */
601 SSPUSHINT(SAVEt_ITEM);
606 Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
611 SSPUSHINT(SAVEt_DESTRUCTOR);
615 Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
620 SSPUSHINT(SAVEt_DESTRUCTOR_X);
624 Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
628 SSPUSHPTR(SvREFCNT_inc(av));
630 SSPUSHPTR(SvREFCNT_inc(*sptr));
631 SSPUSHINT(SAVEt_AELEM);
632 /* if it gets reified later, the restore will have the wrong refcnt */
633 if (!AvREAL(av) && AvREIFY(av))
635 save_scalar_at(sptr);
637 /* If we're localizing a tied array element, this new sv
638 * won't actually be stored in the array - so it won't get
639 * reaped when the localize ends. Ensure it gets reaped by
640 * mortifying it instead. DAPM */
641 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
646 Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
650 SSPUSHPTR(SvREFCNT_inc(hv));
651 SSPUSHPTR(SvREFCNT_inc(key));
652 SSPUSHPTR(SvREFCNT_inc(*sptr));
653 SSPUSHINT(SAVEt_HELEM);
654 save_scalar_at(sptr);
656 /* If we're localizing a tied hash element, this new sv
657 * won't actually be stored in the hash - so it won't get
658 * reaped when the localize ends. Ensure it gets reaped by
659 * mortifying it instead. DAPM */
660 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
673 Perl_save_alloc(pTHX_ I32 size, I32 pad)
675 register I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
676 - (char*)PL_savestack);
677 register I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
679 /* SSCHECK may not be good enough */
680 while (PL_savestack_ix + elems + 2 > PL_savestack_max)
683 PL_savestack_ix += elems;
685 SSPUSHINT(SAVEt_ALLOC);
690 Perl_leave_scope(pTHX_ I32 base)
702 Perl_croak(aTHX_ "panic: corrupt saved stack index");
703 while (PL_savestack_ix > base) {
705 case SAVEt_ITEM: /* normal string */
706 value = (SV*)SSPOPPTR;
708 sv_replace(sv,value);
713 case SAVEt_SV: /* scalar reference */
714 value = (SV*)SSPOPPTR;
717 av = (AV*)gv; /* what to refcnt_dec */
719 case SAVEt_GENERIC_PVREF: /* generic pv */
720 str = (char*)SSPOPPTR;
722 if (*(char**)ptr != str) {
723 Safefree(*(char**)ptr);
727 case SAVEt_SHARED_PVREF: /* shared pv */
728 str = (char*)SSPOPPTR;
730 if (*(char**)ptr != str) {
732 PerlMem_free(*(char**)ptr);
734 PerlMemShared_free(*(char**)ptr);
739 case SAVEt_GENERIC_SVREF: /* generic sv */
740 value = (SV*)SSPOPPTR;
747 case SAVEt_SVREF: /* scalar reference */
748 value = (SV*)SSPOPPTR;
750 av = Nullav; /* what to refcnt_dec */
753 DEBUG_S(PerlIO_printf(Perl_debug_log,
754 "restore svref: %p %p:%s -> %p:%s\n",
755 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
756 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
757 SvTYPE(sv) != SVt_PVGV)
759 (void)SvUPGRADE(value, SvTYPE(sv));
760 SvMAGIC(value) = SvMAGIC(sv);
761 SvFLAGS(value) |= SvMAGICAL(sv);
765 /* XXX This branch is pretty bogus. This code irretrievably
766 * clears(!) the magic on the SV (either to avoid further
767 * croaking that might ensue when the SvSETMAGIC() below is
768 * called, or to avoid two different SVs pointing at the same
769 * SvMAGIC()). This needs a total rethink. --GSAR */
770 else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
771 SvTYPE(value) != SVt_PVGV)
773 SvFLAGS(value) |= (SvFLAGS(value) &
774 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
775 SvMAGICAL_off(value);
776 /* XXX this is a leak when we get here because the
777 * mg_get() in save_scalar_at() croaked */
786 if (av) /* actually an av, hv or gv */
789 case SAVEt_AV: /* array reference */
793 AV *goner = GvAV(gv);
794 SvMAGIC(av) = SvMAGIC(goner);
795 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
796 SvMAGICAL_off(goner);
807 case SAVEt_HV: /* hash reference */
811 HV *goner = GvHV(gv);
812 SvMAGIC(hv) = SvMAGIC(goner);
813 SvFLAGS(hv) |= SvMAGICAL(goner);
814 SvMAGICAL_off(goner);
825 case SAVEt_INT: /* int reference */
827 *(int*)ptr = (int)SSPOPINT;
829 case SAVEt_LONG: /* long reference */
831 *(long*)ptr = (long)SSPOPLONG;
833 case SAVEt_BOOL: /* bool reference */
835 *(bool*)ptr = (bool)SSPOPBOOL;
837 case SAVEt_I32: /* I32 reference */
839 *(I32*)ptr = (I32)SSPOPINT;
841 case SAVEt_I16: /* I16 reference */
843 *(I16*)ptr = (I16)SSPOPINT;
845 case SAVEt_I8: /* I8 reference */
847 *(I8*)ptr = (I8)SSPOPINT;
849 case SAVEt_IV: /* IV reference */
851 *(IV*)ptr = (IV)SSPOPIV;
853 case SAVEt_SPTR: /* SV* reference */
855 *(SV**)ptr = (SV*)SSPOPPTR;
857 case SAVEt_VPTR: /* random* reference */
858 case SAVEt_PPTR: /* char* reference */
860 *(char**)ptr = (char*)SSPOPPTR;
862 case SAVEt_HPTR: /* HV* reference */
864 *(HV**)ptr = (HV*)SSPOPPTR;
866 case SAVEt_APTR: /* AV* reference */
868 *(AV**)ptr = (AV*)SSPOPPTR;
872 (void)sv_clear((SV*)gv);
874 case SAVEt_GP: /* scalar reference */
877 if (SvPVX(gv) && SvLEN(gv) > 0) {
880 SvPVX(gv) = (char *)SSPOPPTR;
881 SvCUR(gv) = (STRLEN)SSPOPIV;
882 SvLEN(gv) = (STRLEN)SSPOPIV;
886 PL_sub_generation++; /* putting a method back into circulation */
891 SvREFCNT_dec((SV*)ptr);
893 case SAVEt_MORTALIZESV:
895 sv_2mortal((SV*)ptr);
899 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
904 Safefree((char*)ptr);
907 ptr = (void*)&PL_curpad[SSPOPLONG];
910 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
911 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
912 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
913 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
914 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
917 /* Can clear pad variable in place? */
918 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
920 * if a my variable that was made readonly is going out of
921 * scope, we want to remove the readonlyness so that it can
922 * go out of scope quietly
924 if (SvPADMY(sv) && !SvFAKE(sv))
927 if (SvTHINKFIRST(sv))
928 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
932 switch (SvTYPE(sv)) {
942 Perl_croak(aTHX_ "panic: leave_scope pad code");
953 SvPADSTALE_on(sv); /* mark as no longer live */
955 else { /* Someone has a claim on this, so abandon it. */
956 U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
957 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
958 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
959 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
960 default: *(SV**)ptr = NEWSV(0,0); break;
962 SvREFCNT_dec(sv); /* Cast current value to the winds. */
963 /* preserve pad nature, but also mark as not live
964 * for any closure capturing */
965 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
972 (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
976 case SAVEt_DESTRUCTOR:
980 case SAVEt_DESTRUCTOR_X:
982 (*SSPOPDXPTR)(aTHX_ ptr);
984 case SAVEt_REGCONTEXT:
987 PL_savestack_ix -= i; /* regexp must have croaked */
989 case SAVEt_STACK_POS: /* Position on Perl stack */
991 PL_stack_sp = PL_stack_base + i;
993 case SAVEt_AELEM: /* array element */
994 value = (SV*)SSPOPPTR;
997 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
999 ptr = av_fetch(av,i,1);
1002 if (sv && sv != &PL_sv_undef) {
1003 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
1004 (void)SvREFCNT_inc(sv);
1009 SvREFCNT_dec(value);
1011 case SAVEt_HELEM: /* hash element */
1012 value = (SV*)SSPOPPTR;
1015 ptr = hv_fetch_ent(hv, sv, 1, 0);
1017 SV *oval = HeVAL((HE*)ptr);
1018 if (oval && oval != &PL_sv_undef) {
1019 ptr = &HeVAL((HE*)ptr);
1020 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
1021 (void)SvREFCNT_inc(*(SV**)ptr);
1023 av = (AV*)hv; /* what to refcnt_dec */
1029 SvREFCNT_dec(value);
1032 PL_op = (OP*)SSPOPPTR;
1035 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
1036 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
1037 GvHV(PL_hintgv) = NULL;
1039 *(I32*)&PL_hints = (I32)SSPOPINT;
1040 if (PL_hints & HINT_LOCALIZE_HH) {
1041 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
1042 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
1047 PL_comppad = (PAD*)SSPOPPTR;
1049 PL_curpad = AvARRAY(PL_comppad);
1051 PL_curpad = Null(SV**);
1055 PADOFFSET off = (PADOFFSET)SSPOPLONG;
1058 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
1061 case SAVEt_SAVESWITCHSTACK:
1064 AV* t = (AV*)SSPOPPTR;
1065 AV* f = (AV*)SSPOPPTR;
1067 PL_curstackinfo->si_stack = f;
1070 case SAVEt_SET_SVFLAGS:
1072 U32 val = (U32)SSPOPINT;
1073 U32 mask = (U32)SSPOPINT;
1075 SvFLAGS(sv) &= ~mask;
1080 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
1086 Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
1089 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
1090 if (CxTYPE(cx) != CXt_SUBST) {
1091 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
1092 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
1093 PTR2UV(cx->blk_oldcop));
1094 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
1095 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
1096 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
1097 PTR2UV(cx->blk_oldpm));
1098 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
1100 switch (CxTYPE(cx)) {
1105 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1106 PTR2UV(cx->blk_sub.cv));
1107 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
1108 PTR2UV(cx->blk_sub.gv));
1109 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
1110 PTR2UV(cx->blk_sub.dfoutgv));
1111 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
1112 (int)cx->blk_sub.hasargs);
1113 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1114 PTR2UV(cx->blk_sub.retop));
1117 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1118 PTR2UV(cx->blk_sub.cv));
1119 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
1120 (long)cx->blk_sub.olddepth);
1121 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
1122 (int)cx->blk_sub.hasargs);
1123 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
1124 (int)cx->blk_sub.lval);
1125 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1126 PTR2UV(cx->blk_sub.retop));
1129 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
1130 (long)cx->blk_eval.old_in_eval);
1131 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
1132 PL_op_name[cx->blk_eval.old_op_type],
1133 PL_op_desc[cx->blk_eval.old_op_type]);
1134 if (cx->blk_eval.old_namesv)
1135 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
1136 SvPVX(cx->blk_eval.old_namesv));
1137 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1138 PTR2UV(cx->blk_eval.old_eval_root));
1139 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1140 PTR2UV(cx->blk_eval.retop));
1144 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
1145 cx->blk_loop.label);
1146 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
1147 (long)cx->blk_loop.resetsp);
1148 PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
1149 PTR2UV(cx->blk_loop.redo_op));
1150 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
1151 PTR2UV(cx->blk_loop.next_op));
1152 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
1153 PTR2UV(cx->blk_loop.last_op));
1154 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
1155 (long)cx->blk_loop.iterix);
1156 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1157 PTR2UV(cx->blk_loop.iterary));
1158 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1159 PTR2UV(CxITERVAR(cx)));
1161 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1162 PTR2UV(cx->blk_loop.itersave));
1163 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1164 PTR2UV(cx->blk_loop.iterlval));
1168 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
1169 (long)cx->sb_iters);
1170 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
1171 (long)cx->sb_maxiters);
1172 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1173 (long)cx->sb_rflags);
1174 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
1176 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
1178 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1179 PTR2UV(cx->sb_dstr));
1180 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1181 PTR2UV(cx->sb_targ));
1182 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1184 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1186 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1187 PTR2UV(cx->sb_strend));
1188 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1189 PTR2UV(cx->sb_rxres));
1192 #endif /* DEBUGGING */