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a0d0e21e 1/* scope.c
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
54ca4ee7 4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
79072805
LW
5 *
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.
8 *
a0d0e21e
LW
9 */
10
11/*
12 * "For the fashion of Minas Tirith was such that it was built on seven
13 * levels..."
79072805
LW
14 */
15
ddfa107c 16/* This file contains functions to manipulate several of Perl's stacks;
166f8a29
DM
17 * in particular it contains code to push various types of things onto
18 * the savestack, then to pop them off and perform the correct restorative
19 * action for each one. This corresponds to the cleanup Perl does at
20 * each scope exit.
21 */
22
79072805 23#include "EXTERN.h"
864dbfa3 24#define PERL_IN_SCOPE_C
79072805
LW
25#include "perl.h"
26
a0d0e21e 27SV**
864dbfa3 28Perl_stack_grow(pTHX_ SV **sp, SV **p, int n)
a0d0e21e 29{
97aff369 30 dVAR;
3280af22 31 PL_stack_sp = sp;
2ce36478 32#ifndef STRESS_REALLOC
3280af22 33 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
2ce36478 34#else
6b88bc9c 35 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
2ce36478 36#endif
3280af22 37 return PL_stack_sp;
a0d0e21e
LW
38}
39
2ce36478
SM
40#ifndef STRESS_REALLOC
41#define GROW(old) ((old) * 3 / 2)
42#else
43#define GROW(old) ((old) + 1)
44#endif
45
e336de0d 46PERL_SI *
864dbfa3 47Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
e336de0d 48{
97aff369 49 dVAR;
e336de0d 50 PERL_SI *si;
a02a5408 51 Newx(si, 1, PERL_SI);
e336de0d
GS
52 si->si_stack = newAV();
53 AvREAL_off(si->si_stack);
54 av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
3280af22 55 AvALLOC(si->si_stack)[0] = &PL_sv_undef;
e336de0d
GS
56 AvFILLp(si->si_stack) = 0;
57 si->si_prev = 0;
58 si->si_next = 0;
59 si->si_cxmax = cxitems - 1;
60 si->si_cxix = -1;
e788e7d3 61 si->si_type = PERLSI_UNDEF;
a02a5408 62 Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
9965345d
JH
63 /* Without any kind of initialising PUSHSUBST()
64 * in pp_subst() will read uninitialised heap. */
65 Poison(si->si_cxstack, cxitems, PERL_CONTEXT);
e336de0d
GS
66 return si;
67}
68
79072805 69I32
864dbfa3 70Perl_cxinc(pTHX)
79072805 71{
97aff369 72 dVAR;
a3b680e6 73 const IV old_max = cxstack_max;
2ce36478 74 cxstack_max = GROW(cxstack_max);
c09156bb 75 Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
9965345d
JH
76 /* Without any kind of initialising deep enough recursion
77 * will end up reading uninitialised PERL_CONTEXTs. */
78 Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
79072805
LW
79 return cxstack_ix + 1;
80}
81
79072805 82void
864dbfa3 83Perl_push_scope(pTHX)
79072805 84{
97aff369 85 dVAR;
3280af22
NIS
86 if (PL_scopestack_ix == PL_scopestack_max) {
87 PL_scopestack_max = GROW(PL_scopestack_max);
88 Renew(PL_scopestack, PL_scopestack_max, I32);
79072805 89 }
3280af22 90 PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
79072805
LW
91
92}
93
94void
864dbfa3 95Perl_pop_scope(pTHX)
79072805 96{
97aff369 97 dVAR;
35a4481c 98 const I32 oldsave = PL_scopestack[--PL_scopestack_ix];
8990e307 99 LEAVE_SCOPE(oldsave);
79072805
LW
100}
101
102void
864dbfa3 103Perl_markstack_grow(pTHX)
a0d0e21e 104{
97aff369 105 dVAR;
35a4481c
AL
106 const I32 oldmax = PL_markstack_max - PL_markstack;
107 const I32 newmax = GROW(oldmax);
a0d0e21e 108
3280af22
NIS
109 Renew(PL_markstack, newmax, I32);
110 PL_markstack_ptr = PL_markstack + oldmax;
111 PL_markstack_max = PL_markstack + newmax;
a0d0e21e
LW
112}
113
114void
864dbfa3 115Perl_savestack_grow(pTHX)
79072805 116{
97aff369 117 dVAR;
8aacddc1 118 PL_savestack_max = GROW(PL_savestack_max) + 4;
3280af22 119 Renew(PL_savestack, PL_savestack_max, ANY);
79072805
LW
120}
121
4b3c1a47
AE
122void
123Perl_savestack_grow_cnt(pTHX_ I32 need)
124{
97aff369 125 dVAR;
4b3c1a47
AE
126 PL_savestack_max = PL_savestack_ix + need;
127 Renew(PL_savestack, PL_savestack_max, ANY);
128}
129
2ce36478
SM
130#undef GROW
131
79072805 132void
864dbfa3 133Perl_tmps_grow(pTHX_ I32 n)
677b06e3 134{
97aff369 135 dVAR;
677b06e3
GS
136#ifndef STRESS_REALLOC
137 if (n < 128)
138 n = (PL_tmps_max < 512) ? 128 : 512;
139#endif
140 PL_tmps_max = PL_tmps_ix + n + 1;
141 Renew(PL_tmps_stack, PL_tmps_max, SV*);
142}
143
144
145void
864dbfa3 146Perl_free_tmps(pTHX)
79072805 147{
97aff369 148 dVAR;
79072805 149 /* XXX should tmps_floor live in cxstack? */
35a4481c 150 const I32 myfloor = PL_tmps_floor;
3280af22 151 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
901017d6 152 SV* const sv = PL_tmps_stack[PL_tmps_ix];
a0714e2c 153 PL_tmps_stack[PL_tmps_ix--] = NULL;
8aacddc1 154 if (sv && sv != &PL_sv_undef) {
463ee0b2 155 SvTEMP_off(sv);
8990e307 156 SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
463ee0b2 157 }
79072805
LW
158 }
159}
160
76e3520e 161STATIC SV *
cea2e8a9 162S_save_scalar_at(pTHX_ SV **sptr)
79072805 163{
97aff369 164 dVAR;
901017d6 165 SV * const osv = *sptr;
561b68a9 166 register SV * const sv = *sptr = newSV(0);
79072805 167
a0d0e21e 168 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
a0d0e21e 169 if (SvGMAGICAL(osv)) {
35a4481c 170 const bool oldtainted = PL_tainted;
a0d0e21e 171 SvFLAGS(osv) |= (SvFLAGS(osv) &
8aacddc1 172 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3280af22 173 PL_tainted = oldtainted;
a0d0e21e 174 }
0cbee0a4 175 mg_localize(osv, sv);
79072805
LW
176 }
177 return sv;
178}
179
7a4c00b4 180SV *
864dbfa3 181Perl_save_scalar(pTHX_ GV *gv)
7a4c00b4 182{
97aff369 183 dVAR;
7452cf6a 184 SV ** const sptr = &GvSV(gv);
27cc343c 185 PL_localizing = 1;
0cbee0a4 186 SvGETMAGIC(*sptr);
27cc343c 187 PL_localizing = 0;
7a4c00b4 188 SSCHECK(3);
4e4c362e
GS
189 SSPUSHPTR(SvREFCNT_inc(gv));
190 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4 191 SSPUSHINT(SAVEt_SV);
4e4c362e 192 return save_scalar_at(sptr);
7a4c00b4
PP
193}
194
f4dd75d9 195/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
b9d12d37
GS
196 * restore a global SV to its prior contents, freeing new value. */
197void
864dbfa3 198Perl_save_generic_svref(pTHX_ SV **sptr)
b9d12d37 199{
97aff369 200 dVAR;
b9d12d37
GS
201 SSCHECK(3);
202 SSPUSHPTR(sptr);
203 SSPUSHPTR(SvREFCNT_inc(*sptr));
204 SSPUSHINT(SAVEt_GENERIC_SVREF);
205}
206
f4dd75d9
GS
207/* Like save_pptr(), but also Safefree()s the new value if it is different
208 * from the old one. Can be used to restore a global char* to its prior
209 * contents, freeing new value. */
210void
211Perl_save_generic_pvref(pTHX_ char **str)
212{
97aff369 213 dVAR;
f4dd75d9
GS
214 SSCHECK(3);
215 SSPUSHPTR(str);
216 SSPUSHPTR(*str);
217 SSPUSHINT(SAVEt_GENERIC_PVREF);
218}
219
05ec9bb3
NIS
220/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
221 * Can be used to restore a shared global char* to its prior
222 * contents, freeing new value. */
223void
224Perl_save_shared_pvref(pTHX_ char **str)
225{
97aff369 226 dVAR;
05ec9bb3
NIS
227 SSCHECK(3);
228 SSPUSHPTR(str);
229 SSPUSHPTR(*str);
230 SSPUSHINT(SAVEt_SHARED_PVREF);
231}
232
14f338dc
DM
233/* set the SvFLAGS specified by mask to the values in val */
234
235void
236Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
237{
97aff369 238 dVAR;
14f338dc
DM
239 SSCHECK(4);
240 SSPUSHPTR(sv);
241 SSPUSHINT(mask);
242 SSPUSHINT(val);
243 SSPUSHINT(SAVEt_SET_SVFLAGS);
244}
245
79072805 246void
864dbfa3 247Perl_save_gp(pTHX_ GV *gv, I32 empty)
79072805 248{
97aff369 249 dVAR;
4b3c1a47 250 SSGROW(6);
fb73857a 251 SSPUSHIV((IV)SvLEN(gv));
b162af07 252 SvLEN_set(gv, 0); /* forget that anything was allocated here */
fb73857a 253 SSPUSHIV((IV)SvCUR(gv));
aa07b2f6 254 SSPUSHPTR(SvPVX_const(gv));
fb73857a 255 SvPOK_off(gv);
4633a7c4 256 SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc 257 SSPUSHPTR(GvGP(gv));
79072805
LW
258 SSPUSHINT(SAVEt_GP);
259
5f05dabc
PP
260 if (empty) {
261 register GP *gp;
fae75791 262
a02a5408 263 Newxz(gp, 1, GP);
146174a9 264
fae75791 265 if (GvCVu(gv))
3280af22 266 PL_sub_generation++; /* taking a method out of circulation */
146174a9
CB
267 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
268 gp->gp_io = newIO();
269 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
270 }
44a8e56a 271 GvGP(gv) = gp_ref(gp);
561b68a9 272 GvSV(gv) = newSV(0);
146174a9 273 GvLINE(gv) = CopLINE(PL_curcop);
07409e01
NC
274 /* XXX Ideally this cast would be replaced with a change to const char*
275 in the struct. */
276 GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : (char *) "";
5f05dabc
PP
277 GvEGV(gv) = gv;
278 }
279 else {
44a8e56a 280 gp_ref(GvGP(gv));
5f05dabc
PP
281 GvINTRO_on(gv);
282 }
79072805 283}
79072805 284
79072805 285AV *
864dbfa3 286Perl_save_ary(pTHX_ GV *gv)
79072805 287{
97aff369 288 dVAR;
901017d6 289 AV * const oav = GvAVn(gv);
67a38de0 290 AV *av;
fb73857a 291
67a38de0
NIS
292 if (!AvREAL(oav) && AvREIFY(oav))
293 av_reify(oav);
79072805
LW
294 SSCHECK(3);
295 SSPUSHPTR(gv);
67a38de0 296 SSPUSHPTR(oav);
79072805
LW
297 SSPUSHINT(SAVEt_AV);
298
299 GvAV(gv) = Null(AV*);
fb73857a 300 av = GvAVn(gv);
0cbee0a4
DM
301 if (SvMAGIC(oav))
302 mg_localize((SV*)oav, (SV*)av);
fb73857a 303 return av;
79072805
LW
304}
305
306HV *
864dbfa3 307Perl_save_hash(pTHX_ GV *gv)
79072805 308{
97aff369 309 dVAR;
fb73857a
PP
310 HV *ohv, *hv;
311
79072805
LW
312 SSCHECK(3);
313 SSPUSHPTR(gv);
fb73857a 314 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
315 SSPUSHINT(SAVEt_HV);
316
317 GvHV(gv) = Null(HV*);
fb73857a 318 hv = GvHVn(gv);
0cbee0a4
DM
319 if (SvMAGIC(ohv))
320 mg_localize((SV*)ohv, (SV*)hv);
fb73857a 321 return hv;
79072805
LW
322}
323
324void
864dbfa3 325Perl_save_item(pTHX_ register SV *item)
79072805 326{
97aff369 327 dVAR;
901017d6 328 register SV * const sv = newSVsv(item);
79072805
LW
329
330 SSCHECK(3);
331 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
332 SSPUSHPTR(sv); /* remember the value */
333 SSPUSHINT(SAVEt_ITEM);
334}
335
336void
864dbfa3 337Perl_save_int(pTHX_ int *intp)
79072805 338{
97aff369 339 dVAR;
79072805
LW
340 SSCHECK(3);
341 SSPUSHINT(*intp);
342 SSPUSHPTR(intp);
343 SSPUSHINT(SAVEt_INT);
344}
345
346void
9febdf04
RH
347Perl_save_bool(pTHX_ bool *boolp)
348{
97aff369 349 dVAR;
9febdf04
RH
350 SSCHECK(3);
351 SSPUSHBOOL(*boolp);
352 SSPUSHPTR(boolp);
353 SSPUSHINT(SAVEt_BOOL);
354}
355
356void
864dbfa3 357Perl_save_I32(pTHX_ I32 *intp)
79072805 358{
97aff369 359 dVAR;
79072805
LW
360 SSCHECK(3);
361 SSPUSHINT(*intp);
362 SSPUSHPTR(intp);
363 SSPUSHINT(SAVEt_I32);
364}
365
85e6fe83
LW
366/* Cannot use save_sptr() to store a char* since the SV** cast will
367 * force word-alignment and we'll miss the pointer.
368 */
369void
864dbfa3 370Perl_save_pptr(pTHX_ char **pptr)
85e6fe83 371{
97aff369 372 dVAR;
85e6fe83
LW
373 SSCHECK(3);
374 SSPUSHPTR(*pptr);
375 SSPUSHPTR(pptr);
376 SSPUSHINT(SAVEt_PPTR);
377}
378
79072805 379void
146174a9
CB
380Perl_save_vptr(pTHX_ void *ptr)
381{
97aff369 382 dVAR;
146174a9
CB
383 SSCHECK(3);
384 SSPUSHPTR(*(char**)ptr);
385 SSPUSHPTR(ptr);
386 SSPUSHINT(SAVEt_VPTR);
387}
388
389void
864dbfa3 390Perl_save_sptr(pTHX_ SV **sptr)
79072805 391{
97aff369 392 dVAR;
79072805
LW
393 SSCHECK(3);
394 SSPUSHPTR(*sptr);
395 SSPUSHPTR(sptr);
396 SSPUSHINT(SAVEt_SPTR);
397}
398
c3564e5c
GS
399void
400Perl_save_padsv(pTHX_ PADOFFSET off)
401{
97aff369 402 dVAR;
c3564e5c 403 SSCHECK(4);
f3548bdc 404 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 405 SSPUSHPTR(PL_curpad[off]);
f3548bdc 406 SSPUSHPTR(PL_comppad);
c3564e5c
GS
407 SSPUSHLONG((long)off);
408 SSPUSHINT(SAVEt_PADSV);
409}
410
79072805 411void
864dbfa3 412Perl_save_hptr(pTHX_ HV **hptr)
79072805 413{
97aff369 414 dVAR;
79072805 415 SSCHECK(3);
85e6fe83 416 SSPUSHPTR(*hptr);
79072805
LW
417 SSPUSHPTR(hptr);
418 SSPUSHINT(SAVEt_HPTR);
419}
420
421void
864dbfa3 422Perl_save_aptr(pTHX_ AV **aptr)
79072805 423{
97aff369 424 dVAR;
79072805 425 SSCHECK(3);
85e6fe83 426 SSPUSHPTR(*aptr);
79072805
LW
427 SSPUSHPTR(aptr);
428 SSPUSHINT(SAVEt_APTR);
429}
430
431void
864dbfa3 432Perl_save_freesv(pTHX_ SV *sv)
8990e307 433{
97aff369 434 dVAR;
8990e307
LW
435 SSCHECK(2);
436 SSPUSHPTR(sv);
437 SSPUSHINT(SAVEt_FREESV);
438}
439
440void
26d9b02f
JH
441Perl_save_mortalizesv(pTHX_ SV *sv)
442{
97aff369 443 dVAR;
26d9b02f
JH
444 SSCHECK(2);
445 SSPUSHPTR(sv);
446 SSPUSHINT(SAVEt_MORTALIZESV);
447}
448
449void
864dbfa3 450Perl_save_freeop(pTHX_ OP *o)
8990e307 451{
97aff369 452 dVAR;
8990e307 453 SSCHECK(2);
11343788 454 SSPUSHPTR(o);
8990e307
LW
455 SSPUSHINT(SAVEt_FREEOP);
456}
457
458void
864dbfa3 459Perl_save_freepv(pTHX_ char *pv)
8990e307 460{
97aff369 461 dVAR;
8990e307
LW
462 SSCHECK(2);
463 SSPUSHPTR(pv);
464 SSPUSHINT(SAVEt_FREEPV);
465}
466
467void
864dbfa3 468Perl_save_clearsv(pTHX_ SV **svp)
8990e307 469{
97aff369 470 dVAR;
f3548bdc 471 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 472 SSCHECK(2);
3280af22 473 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 474 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 475 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
476}
477
478void
864dbfa3 479Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307 480{
97aff369 481 dVAR;
8990e307
LW
482 SSCHECK(4);
483 SSPUSHINT(klen);
484 SSPUSHPTR(key);
4e4c362e 485 SSPUSHPTR(SvREFCNT_inc(hv));
8990e307
LW
486 SSPUSHINT(SAVEt_DELETE);
487}
488
489void
146174a9
CB
490Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
491{
97aff369 492 dVAR;
146174a9
CB
493 SSCHECK(3);
494 SSPUSHDXPTR(f);
495 SSPUSHPTR(p);
496 SSPUSHINT(SAVEt_DESTRUCTOR_X);
497}
498
499void
35a4481c 500Perl_save_aelem(pTHX_ const AV *av, I32 idx, SV **sptr)
4e4c362e 501{
97aff369 502 dVAR;
bfc4de9f 503 SV *sv;
0cbee0a4 504 SvGETMAGIC(*sptr);
4e4c362e
GS
505 SSCHECK(4);
506 SSPUSHPTR(SvREFCNT_inc(av));
507 SSPUSHINT(idx);
508 SSPUSHPTR(SvREFCNT_inc(*sptr));
509 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
510 /* if it gets reified later, the restore will have the wrong refcnt */
511 if (!AvREAL(av) && AvREIFY(av))
7fc63493 512 (void)SvREFCNT_inc(*sptr);
4e4c362e 513 save_scalar_at(sptr);
bfc4de9f
DM
514 sv = *sptr;
515 /* If we're localizing a tied array element, this new sv
516 * won't actually be stored in the array - so it won't get
517 * reaped when the localize ends. Ensure it gets reaped by
518 * mortifying it instead. DAPM */
519 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
520 sv_2mortal(sv);
4e4c362e
GS
521}
522
523void
e1ec3a88 524Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 525{
97aff369 526 dVAR;
bfc4de9f 527 SV *sv;
0cbee0a4 528 SvGETMAGIC(*sptr);
4e4c362e
GS
529 SSCHECK(4);
530 SSPUSHPTR(SvREFCNT_inc(hv));
531 SSPUSHPTR(SvREFCNT_inc(key));
532 SSPUSHPTR(SvREFCNT_inc(*sptr));
533 SSPUSHINT(SAVEt_HELEM);
534 save_scalar_at(sptr);
bfc4de9f
DM
535 sv = *sptr;
536 /* If we're localizing a tied hash element, this new sv
537 * won't actually be stored in the hash - so it won't get
538 * reaped when the localize ends. Ensure it gets reaped by
539 * mortifying it instead. DAPM */
540 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
541 sv_2mortal(sv);
4e4c362e
GS
542}
543
2053acbf
NC
544SV*
545Perl_save_svref(pTHX_ SV **sptr)
546{
547 dVAR;
548 SvGETMAGIC(*sptr);
549 SSCHECK(3);
550 SSPUSHPTR(sptr);
551 SSPUSHPTR(SvREFCNT_inc(*sptr));
552 SSPUSHINT(SAVEt_SVREF);
553 return save_scalar_at(sptr);
554}
555
4e4c362e 556void
864dbfa3 557Perl_save_op(pTHX)
462e5cf6 558{
97aff369 559 dVAR;
462e5cf6 560 SSCHECK(2);
533c011a 561 SSPUSHPTR(PL_op);
462e5cf6
MB
562 SSPUSHINT(SAVEt_OP);
563}
564
455ece5e 565I32
864dbfa3 566Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 567{
97aff369 568 dVAR;
35a4481c 569 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 570 - (char*)PL_savestack);
35a4481c 571 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e
AD
572
573 /* SSCHECK may not be good enough */
574 while (PL_savestack_ix + elems + 2 > PL_savestack_max)
8aacddc1 575 savestack_grow();
455ece5e
AD
576
577 PL_savestack_ix += elems;
578 SSPUSHINT(elems);
579 SSPUSHINT(SAVEt_ALLOC);
580 return start;
581}
582
462e5cf6 583void
864dbfa3 584Perl_leave_scope(pTHX_ I32 base)
79072805 585{
97aff369 586 dVAR;
79072805
LW
587 register SV *sv;
588 register SV *value;
589 register GV *gv;
590 register AV *av;
591 register HV *hv;
20454177 592 void* ptr;
f4dd75d9 593 register char* str;
161b7d16 594 I32 i;
79072805
LW
595
596 if (base < -1)
cea2e8a9 597 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 598 while (PL_savestack_ix > base) {
79072805
LW
599 switch (SSPOPINT) {
600 case SAVEt_ITEM: /* normal string */
601 value = (SV*)SSPOPPTR;
602 sv = (SV*)SSPOPPTR;
603 sv_replace(sv,value);
3280af22 604 PL_localizing = 2;
79072805 605 SvSETMAGIC(sv);
3280af22 606 PL_localizing = 0;
79072805 607 break;
8aacddc1 608 case SAVEt_SV: /* scalar reference */
79072805
LW
609 value = (SV*)SSPOPPTR;
610 gv = (GV*)SSPOPPTR;
7a4c00b4 611 ptr = &GvSV(gv);
5dd42e15 612 av = (AV*)gv; /* what to refcnt_dec */
2053acbf
NC
613 restore_sv:
614 sv = *(SV**)ptr;
615 DEBUG_S(PerlIO_printf(Perl_debug_log,
616 "restore svref: %p %p:%s -> %p:%s\n",
617 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
618 *(SV**)ptr = value;
619 SvREFCNT_dec(sv);
620 PL_localizing = 2;
621 SvSETMAGIC(value);
622 PL_localizing = 0;
623 SvREFCNT_dec(value);
624 if (av) /* actually an av, hv or gv */
625 SvREFCNT_dec(av);
626 break;
8aacddc1 627 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9
GS
628 str = (char*)SSPOPPTR;
629 ptr = SSPOPPTR;
630 if (*(char**)ptr != str) {
631 Safefree(*(char**)ptr);
632 *(char**)ptr = str;
633 }
634 break;
05ec9bb3
NIS
635 case SAVEt_SHARED_PVREF: /* shared pv */
636 str = (char*)SSPOPPTR;
637 ptr = SSPOPPTR;
638 if (*(char**)ptr != str) {
5e54c26f 639#ifdef NETWARE
9ecbcc42 640 PerlMem_free(*(char**)ptr);
5e54c26f 641#else
05ec9bb3 642 PerlMemShared_free(*(char**)ptr);
5e54c26f 643#endif
05ec9bb3
NIS
644 *(char**)ptr = str;
645 }
646 break;
8aacddc1 647 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
648 value = (SV*)SSPOPPTR;
649 ptr = SSPOPPTR;
f4dd75d9
GS
650 sv = *(SV**)ptr;
651 *(SV**)ptr = value;
652 SvREFCNT_dec(sv);
b9d12d37
GS
653 SvREFCNT_dec(value);
654 break;
8aacddc1 655 case SAVEt_AV: /* array reference */
79072805
LW
656 av = (AV*)SSPOPPTR;
657 gv = (GV*)SSPOPPTR;
fb73857a 658 if (GvAV(gv)) {
35a4481c 659 AV * const goner = GvAV(gv);
404a4710
NC
660 /* FIXME - this is a temporary hack until we work out what
661 the correct behaviour for magic should be. */
662 sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p);
b162af07 663 SvMAGIC_set(av, SvMAGIC(goner));
32da55ab 664 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
fb73857a 665 SvMAGICAL_off(goner);
b162af07 666 SvMAGIC_set(goner, NULL);
fb73857a
PP
667 SvREFCNT_dec(goner);
668 }
8aacddc1 669 GvAV(gv) = av;
fb73857a 670 if (SvMAGICAL(av)) {
3280af22 671 PL_localizing = 2;
fb73857a 672 SvSETMAGIC((SV*)av);
3280af22 673 PL_localizing = 0;
fb73857a 674 }
8aacddc1
NIS
675 break;
676 case SAVEt_HV: /* hash reference */
79072805
LW
677 hv = (HV*)SSPOPPTR;
678 gv = (GV*)SSPOPPTR;
fb73857a 679 if (GvHV(gv)) {
35a4481c 680 HV * const goner = GvHV(gv);
b162af07 681 SvMAGIC_set(hv, SvMAGIC(goner));
fb73857a
PP
682 SvFLAGS(hv) |= SvMAGICAL(goner);
683 SvMAGICAL_off(goner);
b162af07 684 SvMAGIC_set(goner, NULL);
fb73857a
PP
685 SvREFCNT_dec(goner);
686 }
8aacddc1 687 GvHV(gv) = hv;
fb73857a 688 if (SvMAGICAL(hv)) {
3280af22 689 PL_localizing = 2;
fb73857a 690 SvSETMAGIC((SV*)hv);
3280af22 691 PL_localizing = 0;
fb73857a 692 }
8aacddc1 693 break;
79072805
LW
694 case SAVEt_INT: /* int reference */
695 ptr = SSPOPPTR;
696 *(int*)ptr = (int)SSPOPINT;
697 break;
9febdf04
RH
698 case SAVEt_BOOL: /* bool reference */
699 ptr = SSPOPPTR;
700 *(bool*)ptr = (bool)SSPOPBOOL;
701 break;
79072805
LW
702 case SAVEt_I32: /* I32 reference */
703 ptr = SSPOPPTR;
704 *(I32*)ptr = (I32)SSPOPINT;
705 break;
706 case SAVEt_SPTR: /* SV* reference */
707 ptr = SSPOPPTR;
708 *(SV**)ptr = (SV*)SSPOPPTR;
709 break;
146174a9 710 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
711 case SAVEt_PPTR: /* char* reference */
712 ptr = SSPOPPTR;
713 *(char**)ptr = (char*)SSPOPPTR;
714 break;
79072805
LW
715 case SAVEt_HPTR: /* HV* reference */
716 ptr = SSPOPPTR;
717 *(HV**)ptr = (HV*)SSPOPPTR;
718 break;
719 case SAVEt_APTR: /* AV* reference */
720 ptr = SSPOPPTR;
721 *(AV**)ptr = (AV*)SSPOPPTR;
722 break;
fb73857a 723 case SAVEt_GP: /* scalar reference */
79072805
LW
724 ptr = SSPOPPTR;
725 gv = (GV*)SSPOPPTR;
aa07b2f6 726 if (SvPVX_const(gv) && SvLEN(gv) > 0) {
94010e71 727 Safefree(SvPVX_mutable(gv));
8aacddc1 728 }
f880fe2f 729 SvPV_set(gv, (char *)SSPOPPTR);
b162af07
SP
730 SvCUR_set(gv, (STRLEN)SSPOPIV);
731 SvLEN_set(gv, (STRLEN)SSPOPIV);
8aacddc1
NIS
732 gp_free(gv);
733 GvGP(gv) = (GP*)ptr;
fae75791 734 if (GvCVu(gv))
3280af22 735 PL_sub_generation++; /* putting a method back into circulation */
4633a7c4 736 SvREFCNT_dec(gv);
8aacddc1 737 break;
8990e307
LW
738 case SAVEt_FREESV:
739 ptr = SSPOPPTR;
740 SvREFCNT_dec((SV*)ptr);
741 break;
26d9b02f
JH
742 case SAVEt_MORTALIZESV:
743 ptr = SSPOPPTR;
744 sv_2mortal((SV*)ptr);
745 break;
8990e307
LW
746 case SAVEt_FREEOP:
747 ptr = SSPOPPTR;
f3548bdc 748 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
749 op_free((OP*)ptr);
750 break;
751 case SAVEt_FREEPV:
752 ptr = SSPOPPTR;
1df70142 753 Safefree(ptr);
8990e307
LW
754 break;
755 case SAVEt_CLEARSV:
3280af22 756 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 757 sv = *(SV**)ptr;
dd2155a4
DM
758
759 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
760 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
761 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
762 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
763 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
764 ));
765
bc44cdaf
GS
766 /* Can clear pad variable in place? */
767 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
768 /*
769 * if a my variable that was made readonly is going out of
770 * scope, we want to remove the readonlyness so that it can
771 * go out of scope quietly
8aacddc1 772 */
a26e96df 773 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
774 SvREADONLY_off(sv);
775
6fc92669 776 if (SvTHINKFIRST(sv))
840a7b70 777 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
778 if (SvMAGICAL(sv))
779 mg_free(sv);
8990e307
LW
780
781 switch (SvTYPE(sv)) {
782 case SVt_NULL:
783 break;
784 case SVt_PVAV:
44a8e56a 785 av_clear((AV*)sv);
8990e307
LW
786 break;
787 case SVt_PVHV:
44a8e56a 788 hv_clear((HV*)sv);
8990e307
LW
789 break;
790 case SVt_PVCV:
cea2e8a9 791 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 792 default:
0c34ef67 793 SvOK_off(sv);
8990e307
LW
794 break;
795 }
d9d18af6 796 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
797 }
798 else { /* Someone has a claim on this, so abandon it. */
35a4481c 799 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
800 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
801 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
802 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
561b68a9 803 default: *(SV**)ptr = newSV(0); break;
8990e307 804 }
53868620 805 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
806 /* preserve pad nature, but also mark as not live
807 * for any closure capturing */
2740392c 808 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
809 }
810 break;
811 case SAVEt_DELETE:
812 ptr = SSPOPPTR;
813 hv = (HV*)ptr;
814 ptr = SSPOPPTR;
748a9306 815 (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
4e4c362e 816 SvREFCNT_dec(hv);
8aacddc1 817 Safefree(ptr);
8990e307 818 break;
146174a9
CB
819 case SAVEt_DESTRUCTOR_X:
820 ptr = SSPOPPTR;
acfe0abc 821 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
822 break;
823 case SAVEt_REGCONTEXT:
455ece5e 824 case SAVEt_ALLOC:
161b7d16 825 i = SSPOPINT;
3280af22 826 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 827 break;
55497cff 828 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 829 i = SSPOPINT;
3280af22 830 PL_stack_sp = PL_stack_base + i;
55497cff 831 break;
161b7d16
SM
832 case SAVEt_AELEM: /* array element */
833 value = (SV*)SSPOPPTR;
834 i = SSPOPINT;
835 av = (AV*)SSPOPPTR;
5dd42e15
DM
836 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
837 SvREFCNT_dec(value);
161b7d16 838 ptr = av_fetch(av,i,1);
4e4c362e
GS
839 if (ptr) {
840 sv = *(SV**)ptr;
3280af22 841 if (sv && sv != &PL_sv_undef) {
14befaf4 842 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
4e4c362e 843 (void)SvREFCNT_inc(sv);
4e4c362e
GS
844 goto restore_sv;
845 }
846 }
847 SvREFCNT_dec(av);
848 SvREFCNT_dec(value);
849 break;
161b7d16
SM
850 case SAVEt_HELEM: /* hash element */
851 value = (SV*)SSPOPPTR;
9002cb76 852 sv = (SV*)SSPOPPTR;
161b7d16
SM
853 hv = (HV*)SSPOPPTR;
854 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 855 if (ptr) {
35a4481c 856 const SV * const oval = HeVAL((HE*)ptr);
3280af22 857 if (oval && oval != &PL_sv_undef) {
4e4c362e 858 ptr = &HeVAL((HE*)ptr);
14befaf4 859 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
4e4c362e 860 (void)SvREFCNT_inc(*(SV**)ptr);
4e4c362e 861 SvREFCNT_dec(sv);
5dd42e15 862 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
863 goto restore_sv;
864 }
865 }
866 SvREFCNT_dec(hv);
867 SvREFCNT_dec(sv);
868 SvREFCNT_dec(value);
869 break;
462e5cf6 870 case SAVEt_OP:
533c011a 871 PL_op = (OP*)SSPOPPTR;
462e5cf6 872 break;
25eaa213 873 case SAVEt_HINTS:
045ac317
RGS
874 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
875 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
876 GvHV(PL_hintgv) = NULL;
877 }
3280af22 878 *(I32*)&PL_hints = (I32)SSPOPINT;
dfa41748
DM
879 if (PL_hints & HINT_LOCALIZE_HH) {
880 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
881 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
882 }
883
b3ac6de7 884 break;
cb50131a 885 case SAVEt_COMPPAD:
f3548bdc 886 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 887 if (PL_comppad)
cb50131a
CB
888 PL_curpad = AvARRAY(PL_comppad);
889 else
890 PL_curpad = Null(SV**);
891 break;
c3564e5c
GS
892 case SAVEt_PADSV:
893 {
35a4481c 894 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
895 ptr = SSPOPPTR;
896 if (ptr)
f3548bdc 897 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
898 }
899 break;
8b7059b1
DM
900 case SAVEt_SAVESWITCHSTACK:
901 {
902 dSP;
7452cf6a
AL
903 AV* const t = (AV*)SSPOPPTR;
904 AV* const f = (AV*)SSPOPPTR;
8b7059b1
DM
905 SWITCHSTACK(t,f);
906 PL_curstackinfo->si_stack = f;
907 }
908 break;
14f338dc
DM
909 case SAVEt_SET_SVFLAGS:
910 {
35a4481c
AL
911 const U32 val = (U32)SSPOPINT;
912 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
913 sv = (SV*)SSPOPPTR;
914 SvFLAGS(sv) &= ~mask;
915 SvFLAGS(sv) |= val;
916 }
917 break;
2053acbf
NC
918 /* These are only saved in mathoms.c */
919 case SAVEt_SVREF: /* scalar reference */
920 value = (SV*)SSPOPPTR;
921 ptr = SSPOPPTR;
922 av = NULL; /* what to refcnt_dec */
923 goto restore_sv;
924 case SAVEt_LONG: /* long reference */
925 ptr = SSPOPPTR;
926 *(long*)ptr = (long)SSPOPLONG;
927 break;
928 case SAVEt_I16: /* I16 reference */
929 ptr = SSPOPPTR;
930 *(I16*)ptr = (I16)SSPOPINT;
931 break;
932 case SAVEt_I8: /* I8 reference */
933 ptr = SSPOPPTR;
934 *(I8*)ptr = (I8)SSPOPINT;
935 break;
936 case SAVEt_IV: /* IV reference */
937 ptr = SSPOPPTR;
938 *(IV*)ptr = (IV)SSPOPIV;
939 break;
940 case SAVEt_NSTAB:
941 gv = (GV*)SSPOPPTR;
942 (void)sv_clear((SV*)gv);
943 break;
944 case SAVEt_DESTRUCTOR:
945 ptr = SSPOPPTR;
946 (*SSPOPDPTR)(ptr);
947 break;
79072805 948 default:
cea2e8a9 949 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
950 }
951 }
952}
8990e307 953
8990e307 954void
864dbfa3 955Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 956{
97aff369 957 dVAR;
35ff7856 958#ifdef DEBUGGING
22c35a8c 959 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 960 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 961 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
962 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
963 PTR2UV(cx->blk_oldcop));
760ac839
LW
964 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
965 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
966 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
967 PTR2UV(cx->blk_oldpm));
760ac839 968 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 969 }
6b35e009 970 switch (CxTYPE(cx)) {
8990e307
LW
971 case CXt_NULL:
972 case CXt_BLOCK:
973 break;
146174a9
CB
974 case CXt_FORMAT:
975 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
976 PTR2UV(cx->blk_sub.cv));
977 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
978 PTR2UV(cx->blk_sub.gv));
979 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
980 PTR2UV(cx->blk_sub.dfoutgv));
981 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
982 (int)cx->blk_sub.hasargs);
f39bc417
DM
983 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
984 PTR2UV(cx->blk_sub.retop));
146174a9 985 break;
8990e307 986 case CXt_SUB:
146174a9
CB
987 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
988 PTR2UV(cx->blk_sub.cv));
760ac839 989 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 990 (long)cx->blk_sub.olddepth);
760ac839 991 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
8990e307 992 (int)cx->blk_sub.hasargs);
146174a9
CB
993 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
994 (int)cx->blk_sub.lval);
f39bc417
DM
995 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
996 PTR2UV(cx->blk_sub.retop));
8990e307
LW
997 break;
998 case CXt_EVAL:
760ac839 999 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307 1000 (long)cx->blk_eval.old_in_eval);
760ac839 1001 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
22c35a8c
GS
1002 PL_op_name[cx->blk_eval.old_op_type],
1003 PL_op_desc[cx->blk_eval.old_op_type]);
0f79a09d
GS
1004 if (cx->blk_eval.old_namesv)
1005 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
aa07b2f6 1006 SvPVX_const(cx->blk_eval.old_namesv));
146174a9
CB
1007 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1008 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1009 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1010 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1011 break;
1012
1013 case CXt_LOOP:
760ac839 1014 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307 1015 cx->blk_loop.label);
760ac839 1016 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1017 (long)cx->blk_loop.resetsp);
146174a9
CB
1018 PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
1019 PTR2UV(cx->blk_loop.redo_op));
1020 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
1021 PTR2UV(cx->blk_loop.next_op));
1022 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
1023 PTR2UV(cx->blk_loop.last_op));
760ac839 1024 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1025 (long)cx->blk_loop.iterix);
146174a9
CB
1026 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1027 PTR2UV(cx->blk_loop.iterary));
1028 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1029 PTR2UV(CxITERVAR(cx)));
1030 if (CxITERVAR(cx))
1031 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1032 PTR2UV(cx->blk_loop.itersave));
1033 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1034 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1035 break;
1036
1037 case CXt_SUBST:
760ac839 1038 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1039 (long)cx->sb_iters);
760ac839 1040 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1041 (long)cx->sb_maxiters);
35ef4773
GS
1042 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1043 (long)cx->sb_rflags);
760ac839 1044 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307 1045 (long)cx->sb_once);
760ac839 1046 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1047 cx->sb_orig);
146174a9
CB
1048 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1049 PTR2UV(cx->sb_dstr));
1050 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1051 PTR2UV(cx->sb_targ));
1052 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1053 PTR2UV(cx->sb_s));
1054 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1055 PTR2UV(cx->sb_m));
1056 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1057 PTR2UV(cx->sb_strend));
1058 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1059 PTR2UV(cx->sb_rxres));
8990e307
LW
1060 break;
1061 }
65e66c80
SP
1062#else
1063 PERL_UNUSED_ARG(cx);
17c3b450 1064#endif /* DEBUGGING */
35ff7856 1065}
241d1a3b
NC
1066
1067/*
1068 * Local variables:
1069 * c-indentation-style: bsd
1070 * c-basic-offset: 4
1071 * indent-tabs-mode: t
1072 * End:
1073 *
37442d52
RGS
1074 * ex: set ts=8 sts=4 sw=4 noet:
1075 */