| 1 | /* scope.c |
| 2 | * |
| 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
| 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 | * |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * "For the fashion of Minas Tirith was such that it was built on seven |
| 13 | * levels..." |
| 14 | */ |
| 15 | |
| 16 | /* This file contains functions to manipulate several of Perl's stacks; |
| 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 | |
| 23 | #include "EXTERN.h" |
| 24 | #define PERL_IN_SCOPE_C |
| 25 | #include "perl.h" |
| 26 | |
| 27 | SV** |
| 28 | Perl_stack_grow(pTHX_ SV **sp, SV **p, int n) |
| 29 | { |
| 30 | dVAR; |
| 31 | PL_stack_sp = sp; |
| 32 | #ifndef STRESS_REALLOC |
| 33 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128); |
| 34 | #else |
| 35 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1); |
| 36 | #endif |
| 37 | return PL_stack_sp; |
| 38 | } |
| 39 | |
| 40 | #ifndef STRESS_REALLOC |
| 41 | #define GROW(old) ((old) * 3 / 2) |
| 42 | #else |
| 43 | #define GROW(old) ((old) + 1) |
| 44 | #endif |
| 45 | |
| 46 | PERL_SI * |
| 47 | Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems) |
| 48 | { |
| 49 | dVAR; |
| 50 | PERL_SI *si; |
| 51 | Newx(si, 1, PERL_SI); |
| 52 | si->si_stack = newAV(); |
| 53 | AvREAL_off(si->si_stack); |
| 54 | av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0); |
| 55 | AvALLOC(si->si_stack)[0] = &PL_sv_undef; |
| 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; |
| 61 | si->si_type = PERLSI_UNDEF; |
| 62 | Newx(si->si_cxstack, cxitems, PERL_CONTEXT); |
| 63 | /* Without any kind of initialising PUSHSUBST() |
| 64 | * in pp_subst() will read uninitialised heap. */ |
| 65 | PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT); |
| 66 | return si; |
| 67 | } |
| 68 | |
| 69 | I32 |
| 70 | Perl_cxinc(pTHX) |
| 71 | { |
| 72 | dVAR; |
| 73 | const IV old_max = cxstack_max; |
| 74 | cxstack_max = GROW(cxstack_max); |
| 75 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */ |
| 76 | /* Without any kind of initialising deep enough recursion |
| 77 | * will end up reading uninitialised PERL_CONTEXTs. */ |
| 78 | PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT); |
| 79 | return cxstack_ix + 1; |
| 80 | } |
| 81 | |
| 82 | void |
| 83 | Perl_push_scope(pTHX) |
| 84 | { |
| 85 | dVAR; |
| 86 | if (PL_scopestack_ix == PL_scopestack_max) { |
| 87 | PL_scopestack_max = GROW(PL_scopestack_max); |
| 88 | Renew(PL_scopestack, PL_scopestack_max, I32); |
| 89 | } |
| 90 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
| 91 | |
| 92 | } |
| 93 | |
| 94 | void |
| 95 | Perl_pop_scope(pTHX) |
| 96 | { |
| 97 | dVAR; |
| 98 | const I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
| 99 | LEAVE_SCOPE(oldsave); |
| 100 | } |
| 101 | |
| 102 | void |
| 103 | Perl_markstack_grow(pTHX) |
| 104 | { |
| 105 | dVAR; |
| 106 | const I32 oldmax = PL_markstack_max - PL_markstack; |
| 107 | const I32 newmax = GROW(oldmax); |
| 108 | |
| 109 | Renew(PL_markstack, newmax, I32); |
| 110 | PL_markstack_ptr = PL_markstack + oldmax; |
| 111 | PL_markstack_max = PL_markstack + newmax; |
| 112 | } |
| 113 | |
| 114 | void |
| 115 | Perl_savestack_grow(pTHX) |
| 116 | { |
| 117 | dVAR; |
| 118 | PL_savestack_max = GROW(PL_savestack_max) + 4; |
| 119 | Renew(PL_savestack, PL_savestack_max, ANY); |
| 120 | } |
| 121 | |
| 122 | void |
| 123 | Perl_savestack_grow_cnt(pTHX_ I32 need) |
| 124 | { |
| 125 | dVAR; |
| 126 | PL_savestack_max = PL_savestack_ix + need; |
| 127 | Renew(PL_savestack, PL_savestack_max, ANY); |
| 128 | } |
| 129 | |
| 130 | #undef GROW |
| 131 | |
| 132 | void |
| 133 | Perl_tmps_grow(pTHX_ I32 n) |
| 134 | { |
| 135 | dVAR; |
| 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 | |
| 145 | void |
| 146 | Perl_free_tmps(pTHX) |
| 147 | { |
| 148 | dVAR; |
| 149 | /* XXX should tmps_floor live in cxstack? */ |
| 150 | const I32 myfloor = PL_tmps_floor; |
| 151 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
| 152 | SV* const sv = PL_tmps_stack[PL_tmps_ix]; |
| 153 | PL_tmps_stack[PL_tmps_ix--] = NULL; |
| 154 | if (sv && sv != &PL_sv_undef) { |
| 155 | SvTEMP_off(sv); |
| 156 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | STATIC SV * |
| 162 | S_save_scalar_at(pTHX_ SV **sptr) |
| 163 | { |
| 164 | dVAR; |
| 165 | SV * const osv = *sptr; |
| 166 | register SV * const sv = *sptr = newSV(0); |
| 167 | |
| 168 | #ifdef PERL_MAD |
| 169 | /* FIXME for MAD - this is causing ext/Safe/t/safeops.t to abort. */ |
| 170 | if (PL_formfeed && sv == PL_formfeed) |
| 171 | abort(); |
| 172 | #endif |
| 173 | |
| 174 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
| 175 | if (SvGMAGICAL(osv)) { |
| 176 | const bool oldtainted = PL_tainted; |
| 177 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
| 178 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
| 179 | PL_tainted = oldtainted; |
| 180 | } |
| 181 | mg_localize(osv, sv); |
| 182 | } |
| 183 | return sv; |
| 184 | } |
| 185 | |
| 186 | SV * |
| 187 | Perl_save_scalar(pTHX_ GV *gv) |
| 188 | { |
| 189 | dVAR; |
| 190 | SV ** const sptr = &GvSVn(gv); |
| 191 | #ifdef PERL_MAD |
| 192 | if (PL_formfeed && *sptr == PL_formfeed) |
| 193 | abort(); |
| 194 | #endif |
| 195 | PL_localizing = 1; |
| 196 | SvGETMAGIC(*sptr); |
| 197 | PL_localizing = 0; |
| 198 | SSCHECK(3); |
| 199 | SSPUSHPTR(SvREFCNT_inc_simple(gv)); |
| 200 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
| 201 | SSPUSHINT(SAVEt_SV); |
| 202 | return save_scalar_at(sptr); |
| 203 | } |
| 204 | |
| 205 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
| 206 | * restore a global SV to its prior contents, freeing new value. */ |
| 207 | void |
| 208 | Perl_save_generic_svref(pTHX_ SV **sptr) |
| 209 | { |
| 210 | dVAR; |
| 211 | #ifdef PERL_MAD |
| 212 | if (PL_formfeed && *sptr == PL_formfeed) |
| 213 | abort(); |
| 214 | #endif |
| 215 | SSCHECK(3); |
| 216 | SSPUSHPTR(sptr); |
| 217 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
| 218 | SSPUSHINT(SAVEt_GENERIC_SVREF); |
| 219 | } |
| 220 | |
| 221 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
| 222 | * from the old one. Can be used to restore a global char* to its prior |
| 223 | * contents, freeing new value. */ |
| 224 | void |
| 225 | Perl_save_generic_pvref(pTHX_ char **str) |
| 226 | { |
| 227 | dVAR; |
| 228 | SSCHECK(3); |
| 229 | SSPUSHPTR(*str); |
| 230 | SSPUSHPTR(str); |
| 231 | SSPUSHINT(SAVEt_GENERIC_PVREF); |
| 232 | } |
| 233 | |
| 234 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
| 235 | * Can be used to restore a shared global char* to its prior |
| 236 | * contents, freeing new value. */ |
| 237 | void |
| 238 | Perl_save_shared_pvref(pTHX_ char **str) |
| 239 | { |
| 240 | dVAR; |
| 241 | SSCHECK(3); |
| 242 | SSPUSHPTR(str); |
| 243 | SSPUSHPTR(*str); |
| 244 | SSPUSHINT(SAVEt_SHARED_PVREF); |
| 245 | } |
| 246 | |
| 247 | /* set the SvFLAGS specified by mask to the values in val */ |
| 248 | |
| 249 | void |
| 250 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) |
| 251 | { |
| 252 | dVAR; |
| 253 | SSCHECK(4); |
| 254 | SSPUSHPTR(sv); |
| 255 | SSPUSHINT(mask); |
| 256 | SSPUSHINT(val); |
| 257 | SSPUSHINT(SAVEt_SET_SVFLAGS); |
| 258 | } |
| 259 | |
| 260 | void |
| 261 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
| 262 | { |
| 263 | dVAR; |
| 264 | SSGROW(3); |
| 265 | SSPUSHPTR(SvREFCNT_inc(gv)); |
| 266 | SSPUSHPTR(GvGP(gv)); |
| 267 | SSPUSHINT(SAVEt_GP); |
| 268 | |
| 269 | if (empty) { |
| 270 | GP *gp = Perl_newGP(aTHX_ gv); |
| 271 | |
| 272 | if (GvCVu(gv)) |
| 273 | PL_sub_generation++; /* taking a method out of circulation */ |
| 274 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
| 275 | gp->gp_io = newIO(); |
| 276 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; |
| 277 | } |
| 278 | GvGP(gv) = gp; |
| 279 | } |
| 280 | else { |
| 281 | gp_ref(GvGP(gv)); |
| 282 | GvINTRO_on(gv); |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | AV * |
| 287 | Perl_save_ary(pTHX_ GV *gv) |
| 288 | { |
| 289 | dVAR; |
| 290 | AV * const oav = GvAVn(gv); |
| 291 | AV *av; |
| 292 | |
| 293 | if (!AvREAL(oav) && AvREIFY(oav)) |
| 294 | av_reify(oav); |
| 295 | SSCHECK(3); |
| 296 | SSPUSHPTR(gv); |
| 297 | SSPUSHPTR(oav); |
| 298 | SSPUSHINT(SAVEt_AV); |
| 299 | |
| 300 | GvAV(gv) = NULL; |
| 301 | av = GvAVn(gv); |
| 302 | if (SvMAGIC(oav)) |
| 303 | mg_localize((SV*)oav, (SV*)av); |
| 304 | return av; |
| 305 | } |
| 306 | |
| 307 | HV * |
| 308 | Perl_save_hash(pTHX_ GV *gv) |
| 309 | { |
| 310 | dVAR; |
| 311 | HV *ohv, *hv; |
| 312 | |
| 313 | SSCHECK(3); |
| 314 | SSPUSHPTR(gv); |
| 315 | SSPUSHPTR(ohv = GvHVn(gv)); |
| 316 | SSPUSHINT(SAVEt_HV); |
| 317 | |
| 318 | GvHV(gv) = NULL; |
| 319 | hv = GvHVn(gv); |
| 320 | if (SvMAGIC(ohv)) |
| 321 | mg_localize((SV*)ohv, (SV*)hv); |
| 322 | return hv; |
| 323 | } |
| 324 | |
| 325 | void |
| 326 | Perl_save_item(pTHX_ register SV *item) |
| 327 | { |
| 328 | dVAR; |
| 329 | register SV * const sv = newSVsv(item); |
| 330 | |
| 331 | #ifdef PERL_MAD |
| 332 | if (PL_formfeed && item == PL_formfeed) |
| 333 | abort(); |
| 334 | #endif |
| 335 | |
| 336 | SSCHECK(3); |
| 337 | SSPUSHPTR(item); /* remember the pointer */ |
| 338 | SSPUSHPTR(sv); /* remember the value */ |
| 339 | SSPUSHINT(SAVEt_ITEM); |
| 340 | } |
| 341 | |
| 342 | void |
| 343 | Perl_save_int(pTHX_ int *intp) |
| 344 | { |
| 345 | dVAR; |
| 346 | SSCHECK(3); |
| 347 | SSPUSHINT(*intp); |
| 348 | SSPUSHPTR(intp); |
| 349 | SSPUSHINT(SAVEt_INT); |
| 350 | } |
| 351 | |
| 352 | void |
| 353 | Perl_save_bool(pTHX_ bool *boolp) |
| 354 | { |
| 355 | dVAR; |
| 356 | SSCHECK(3); |
| 357 | SSPUSHBOOL(*boolp); |
| 358 | SSPUSHPTR(boolp); |
| 359 | SSPUSHINT(SAVEt_BOOL); |
| 360 | } |
| 361 | |
| 362 | void |
| 363 | Perl_save_I32(pTHX_ I32 *intp) |
| 364 | { |
| 365 | dVAR; |
| 366 | SSCHECK(3); |
| 367 | SSPUSHINT(*intp); |
| 368 | SSPUSHPTR(intp); |
| 369 | SSPUSHINT(SAVEt_I32); |
| 370 | } |
| 371 | |
| 372 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
| 373 | * force word-alignment and we'll miss the pointer. |
| 374 | */ |
| 375 | void |
| 376 | Perl_save_pptr(pTHX_ char **pptr) |
| 377 | { |
| 378 | dVAR; |
| 379 | SSCHECK(3); |
| 380 | SSPUSHPTR(*pptr); |
| 381 | SSPUSHPTR(pptr); |
| 382 | SSPUSHINT(SAVEt_PPTR); |
| 383 | } |
| 384 | |
| 385 | void |
| 386 | Perl_save_vptr(pTHX_ void *ptr) |
| 387 | { |
| 388 | dVAR; |
| 389 | SSCHECK(3); |
| 390 | SSPUSHPTR(*(char**)ptr); |
| 391 | SSPUSHPTR(ptr); |
| 392 | SSPUSHINT(SAVEt_VPTR); |
| 393 | } |
| 394 | |
| 395 | void |
| 396 | Perl_save_sptr(pTHX_ SV **sptr) |
| 397 | { |
| 398 | dVAR; |
| 399 | SSCHECK(3); |
| 400 | SSPUSHPTR(*sptr); |
| 401 | SSPUSHPTR(sptr); |
| 402 | SSPUSHINT(SAVEt_SPTR); |
| 403 | } |
| 404 | |
| 405 | void |
| 406 | Perl_save_padsv(pTHX_ PADOFFSET off) |
| 407 | { |
| 408 | dVAR; |
| 409 | SSCHECK(4); |
| 410 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
| 411 | SSPUSHPTR(PL_curpad[off]); |
| 412 | SSPUSHPTR(PL_comppad); |
| 413 | SSPUSHLONG((long)off); |
| 414 | SSPUSHINT(SAVEt_PADSV); |
| 415 | } |
| 416 | |
| 417 | void |
| 418 | Perl_save_hptr(pTHX_ HV **hptr) |
| 419 | { |
| 420 | dVAR; |
| 421 | SSCHECK(3); |
| 422 | SSPUSHPTR(*hptr); |
| 423 | SSPUSHPTR(hptr); |
| 424 | SSPUSHINT(SAVEt_HPTR); |
| 425 | } |
| 426 | |
| 427 | void |
| 428 | Perl_save_aptr(pTHX_ AV **aptr) |
| 429 | { |
| 430 | dVAR; |
| 431 | SSCHECK(3); |
| 432 | SSPUSHPTR(*aptr); |
| 433 | SSPUSHPTR(aptr); |
| 434 | SSPUSHINT(SAVEt_APTR); |
| 435 | } |
| 436 | |
| 437 | void |
| 438 | Perl_save_freesv(pTHX_ SV *sv) |
| 439 | { |
| 440 | dVAR; |
| 441 | SSCHECK(2); |
| 442 | SSPUSHPTR(sv); |
| 443 | SSPUSHINT(SAVEt_FREESV); |
| 444 | } |
| 445 | |
| 446 | void |
| 447 | Perl_save_mortalizesv(pTHX_ SV *sv) |
| 448 | { |
| 449 | dVAR; |
| 450 | SSCHECK(2); |
| 451 | SSPUSHPTR(sv); |
| 452 | SSPUSHINT(SAVEt_MORTALIZESV); |
| 453 | } |
| 454 | |
| 455 | void |
| 456 | Perl_save_freeop(pTHX_ OP *o) |
| 457 | { |
| 458 | dVAR; |
| 459 | SSCHECK(2); |
| 460 | SSPUSHPTR(o); |
| 461 | SSPUSHINT(SAVEt_FREEOP); |
| 462 | } |
| 463 | |
| 464 | void |
| 465 | Perl_save_freepv(pTHX_ char *pv) |
| 466 | { |
| 467 | dVAR; |
| 468 | SSCHECK(2); |
| 469 | SSPUSHPTR(pv); |
| 470 | SSPUSHINT(SAVEt_FREEPV); |
| 471 | } |
| 472 | |
| 473 | void |
| 474 | Perl_save_clearsv(pTHX_ SV **svp) |
| 475 | { |
| 476 | dVAR; |
| 477 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
| 478 | SSCHECK(2); |
| 479 | SSPUSHLONG((long)(svp-PL_curpad)); |
| 480 | SSPUSHINT(SAVEt_CLEARSV); |
| 481 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
| 482 | } |
| 483 | |
| 484 | void |
| 485 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
| 486 | { |
| 487 | dVAR; |
| 488 | SSCHECK(4); |
| 489 | SSPUSHINT(klen); |
| 490 | SSPUSHPTR(key); |
| 491 | SSPUSHPTR(SvREFCNT_inc_simple(hv)); |
| 492 | SSPUSHINT(SAVEt_DELETE); |
| 493 | } |
| 494 | |
| 495 | void |
| 496 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
| 497 | { |
| 498 | dVAR; |
| 499 | SSCHECK(3); |
| 500 | SSPUSHDXPTR(f); |
| 501 | SSPUSHPTR(p); |
| 502 | SSPUSHINT(SAVEt_DESTRUCTOR_X); |
| 503 | } |
| 504 | |
| 505 | void |
| 506 | Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr) |
| 507 | { |
| 508 | dVAR; |
| 509 | SV *sv; |
| 510 | SvGETMAGIC(*sptr); |
| 511 | SSCHECK(4); |
| 512 | SSPUSHPTR(SvREFCNT_inc_simple(av)); |
| 513 | SSPUSHINT(idx); |
| 514 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
| 515 | SSPUSHINT(SAVEt_AELEM); |
| 516 | /* if it gets reified later, the restore will have the wrong refcnt */ |
| 517 | if (!AvREAL(av) && AvREIFY(av)) |
| 518 | SvREFCNT_inc_void(*sptr); |
| 519 | save_scalar_at(sptr); |
| 520 | sv = *sptr; |
| 521 | /* If we're localizing a tied array element, this new sv |
| 522 | * won't actually be stored in the array - so it won't get |
| 523 | * reaped when the localize ends. Ensure it gets reaped by |
| 524 | * mortifying it instead. DAPM */ |
| 525 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) |
| 526 | sv_2mortal(sv); |
| 527 | } |
| 528 | |
| 529 | void |
| 530 | Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr) |
| 531 | { |
| 532 | dVAR; |
| 533 | SV *sv; |
| 534 | SvGETMAGIC(*sptr); |
| 535 | SSCHECK(4); |
| 536 | SSPUSHPTR(SvREFCNT_inc_simple(hv)); |
| 537 | SSPUSHPTR(SvREFCNT_inc_simple(key)); |
| 538 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
| 539 | SSPUSHINT(SAVEt_HELEM); |
| 540 | save_scalar_at(sptr); |
| 541 | sv = *sptr; |
| 542 | /* If we're localizing a tied hash element, this new sv |
| 543 | * won't actually be stored in the hash - so it won't get |
| 544 | * reaped when the localize ends. Ensure it gets reaped by |
| 545 | * mortifying it instead. DAPM */ |
| 546 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) |
| 547 | sv_2mortal(sv); |
| 548 | } |
| 549 | |
| 550 | SV* |
| 551 | Perl_save_svref(pTHX_ SV **sptr) |
| 552 | { |
| 553 | dVAR; |
| 554 | #ifdef PERL_MAD |
| 555 | if (PL_formfeed && *sptr == PL_formfeed) |
| 556 | abort(); |
| 557 | #endif |
| 558 | SvGETMAGIC(*sptr); |
| 559 | SSCHECK(3); |
| 560 | SSPUSHPTR(sptr); |
| 561 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
| 562 | SSPUSHINT(SAVEt_SVREF); |
| 563 | return save_scalar_at(sptr); |
| 564 | } |
| 565 | |
| 566 | void |
| 567 | Perl_save_op(pTHX) |
| 568 | { |
| 569 | dVAR; |
| 570 | SSCHECK(2); |
| 571 | SSPUSHPTR(PL_op); |
| 572 | SSPUSHINT(SAVEt_OP); |
| 573 | } |
| 574 | |
| 575 | I32 |
| 576 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
| 577 | { |
| 578 | dVAR; |
| 579 | register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
| 580 | - (char*)PL_savestack); |
| 581 | register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
| 582 | |
| 583 | SSGROW(elems + 2); |
| 584 | |
| 585 | PL_savestack_ix += elems; |
| 586 | SSPUSHINT(elems); |
| 587 | SSPUSHINT(SAVEt_ALLOC); |
| 588 | return start; |
| 589 | } |
| 590 | |
| 591 | void |
| 592 | Perl_leave_scope(pTHX_ I32 base) |
| 593 | { |
| 594 | dVAR; |
| 595 | register SV *sv; |
| 596 | register SV *value; |
| 597 | register GV *gv; |
| 598 | register AV *av; |
| 599 | register HV *hv; |
| 600 | void* ptr; |
| 601 | register char* str; |
| 602 | I32 i; |
| 603 | |
| 604 | if (base < -1) |
| 605 | Perl_croak(aTHX_ "panic: corrupt saved stack index"); |
| 606 | while (PL_savestack_ix > base) { |
| 607 | switch (SSPOPINT) { |
| 608 | case SAVEt_ITEM: /* normal string */ |
| 609 | value = (SV*)SSPOPPTR; |
| 610 | sv = (SV*)SSPOPPTR; |
| 611 | sv_replace(sv,value); |
| 612 | PL_localizing = 2; |
| 613 | SvSETMAGIC(sv); |
| 614 | PL_localizing = 0; |
| 615 | break; |
| 616 | case SAVEt_SV: /* scalar reference */ |
| 617 | value = (SV*)SSPOPPTR; |
| 618 | gv = (GV*)SSPOPPTR; |
| 619 | ptr = &GvSV(gv); |
| 620 | av = (AV*)gv; /* what to refcnt_dec */ |
| 621 | restore_sv: |
| 622 | sv = *(SV**)ptr; |
| 623 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
| 624 | "restore svref: %p %p:%s -> %p:%s\n", |
| 625 | ptr, sv, SvPEEK(sv), value, SvPEEK(value))); |
| 626 | *(SV**)ptr = value; |
| 627 | SvREFCNT_dec(sv); |
| 628 | PL_localizing = 2; |
| 629 | SvSETMAGIC(value); |
| 630 | PL_localizing = 0; |
| 631 | SvREFCNT_dec(value); |
| 632 | if (av) /* actually an av, hv or gv */ |
| 633 | SvREFCNT_dec(av); |
| 634 | break; |
| 635 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
| 636 | ptr = SSPOPPTR; |
| 637 | str = (char*)SSPOPPTR; |
| 638 | if (*(char**)ptr != str) { |
| 639 | Safefree(*(char**)ptr); |
| 640 | *(char**)ptr = str; |
| 641 | } |
| 642 | break; |
| 643 | case SAVEt_SHARED_PVREF: /* shared pv */ |
| 644 | str = (char*)SSPOPPTR; |
| 645 | ptr = SSPOPPTR; |
| 646 | if (*(char**)ptr != str) { |
| 647 | #ifdef NETWARE |
| 648 | PerlMem_free(*(char**)ptr); |
| 649 | #else |
| 650 | PerlMemShared_free(*(char**)ptr); |
| 651 | #endif |
| 652 | *(char**)ptr = str; |
| 653 | } |
| 654 | break; |
| 655 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
| 656 | value = (SV*)SSPOPPTR; |
| 657 | ptr = SSPOPPTR; |
| 658 | sv = *(SV**)ptr; |
| 659 | *(SV**)ptr = value; |
| 660 | SvREFCNT_dec(sv); |
| 661 | SvREFCNT_dec(value); |
| 662 | break; |
| 663 | case SAVEt_AV: /* array reference */ |
| 664 | av = (AV*)SSPOPPTR; |
| 665 | gv = (GV*)SSPOPPTR; |
| 666 | if (GvAV(gv)) { |
| 667 | AV * const goner = GvAV(gv); |
| 668 | /* FIXME - this is a temporary hack until we work out what |
| 669 | the correct behaviour for magic should be. */ |
| 670 | sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p); |
| 671 | SvMAGIC_set(av, SvMAGIC(goner)); |
| 672 | SvFLAGS((SV*)av) |= SvMAGICAL(goner); |
| 673 | SvMAGICAL_off(goner); |
| 674 | SvMAGIC_set(goner, NULL); |
| 675 | SvREFCNT_dec(goner); |
| 676 | } |
| 677 | GvAV(gv) = av; |
| 678 | if (SvMAGICAL(av)) { |
| 679 | PL_localizing = 2; |
| 680 | SvSETMAGIC((SV*)av); |
| 681 | PL_localizing = 0; |
| 682 | } |
| 683 | break; |
| 684 | case SAVEt_HV: /* hash reference */ |
| 685 | hv = (HV*)SSPOPPTR; |
| 686 | gv = (GV*)SSPOPPTR; |
| 687 | if (GvHV(gv)) { |
| 688 | HV * const goner = GvHV(gv); |
| 689 | SvMAGIC_set(hv, SvMAGIC(goner)); |
| 690 | SvFLAGS(hv) |= SvMAGICAL(goner); |
| 691 | SvMAGICAL_off(goner); |
| 692 | SvMAGIC_set(goner, NULL); |
| 693 | SvREFCNT_dec(goner); |
| 694 | } |
| 695 | GvHV(gv) = hv; |
| 696 | if (SvMAGICAL(hv)) { |
| 697 | PL_localizing = 2; |
| 698 | SvSETMAGIC((SV*)hv); |
| 699 | PL_localizing = 0; |
| 700 | } |
| 701 | break; |
| 702 | case SAVEt_INT: /* int reference */ |
| 703 | ptr = SSPOPPTR; |
| 704 | *(int*)ptr = (int)SSPOPINT; |
| 705 | break; |
| 706 | case SAVEt_BOOL: /* bool reference */ |
| 707 | ptr = SSPOPPTR; |
| 708 | *(bool*)ptr = (bool)SSPOPBOOL; |
| 709 | break; |
| 710 | case SAVEt_I32: /* I32 reference */ |
| 711 | ptr = SSPOPPTR; |
| 712 | *(I32*)ptr = (I32)SSPOPINT; |
| 713 | break; |
| 714 | case SAVEt_SPTR: /* SV* reference */ |
| 715 | ptr = SSPOPPTR; |
| 716 | *(SV**)ptr = (SV*)SSPOPPTR; |
| 717 | break; |
| 718 | case SAVEt_VPTR: /* random* reference */ |
| 719 | case SAVEt_PPTR: /* char* reference */ |
| 720 | ptr = SSPOPPTR; |
| 721 | *(char**)ptr = (char*)SSPOPPTR; |
| 722 | break; |
| 723 | case SAVEt_HPTR: /* HV* reference */ |
| 724 | ptr = SSPOPPTR; |
| 725 | *(HV**)ptr = (HV*)SSPOPPTR; |
| 726 | break; |
| 727 | case SAVEt_APTR: /* AV* reference */ |
| 728 | ptr = SSPOPPTR; |
| 729 | *(AV**)ptr = (AV*)SSPOPPTR; |
| 730 | break; |
| 731 | case SAVEt_GP: /* scalar reference */ |
| 732 | ptr = SSPOPPTR; |
| 733 | gv = (GV*)SSPOPPTR; |
| 734 | gp_free(gv); |
| 735 | GvGP(gv) = (GP*)ptr; |
| 736 | if (GvCVu(gv)) |
| 737 | PL_sub_generation++; /* putting a method back into circulation */ |
| 738 | SvREFCNT_dec(gv); |
| 739 | break; |
| 740 | case SAVEt_FREESV: |
| 741 | ptr = SSPOPPTR; |
| 742 | SvREFCNT_dec((SV*)ptr); |
| 743 | break; |
| 744 | case SAVEt_MORTALIZESV: |
| 745 | ptr = SSPOPPTR; |
| 746 | sv_2mortal((SV*)ptr); |
| 747 | break; |
| 748 | case SAVEt_FREEOP: |
| 749 | ptr = SSPOPPTR; |
| 750 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */ |
| 751 | op_free((OP*)ptr); |
| 752 | break; |
| 753 | case SAVEt_FREEPV: |
| 754 | ptr = SSPOPPTR; |
| 755 | Safefree(ptr); |
| 756 | break; |
| 757 | case SAVEt_CLEARSV: |
| 758 | ptr = (void*)&PL_curpad[SSPOPLONG]; |
| 759 | sv = *(SV**)ptr; |
| 760 | |
| 761 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, |
| 762 | "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n", |
| 763 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), |
| 764 | (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), |
| 765 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" |
| 766 | )); |
| 767 | |
| 768 | /* Can clear pad variable in place? */ |
| 769 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
| 770 | /* |
| 771 | * if a my variable that was made readonly is going out of |
| 772 | * scope, we want to remove the readonlyness so that it can |
| 773 | * go out of scope quietly |
| 774 | */ |
| 775 | if (SvPADMY(sv) && !SvFAKE(sv)) |
| 776 | SvREADONLY_off(sv); |
| 777 | |
| 778 | if (SvTHINKFIRST(sv)) |
| 779 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF); |
| 780 | if (SvMAGICAL(sv)) |
| 781 | mg_free(sv); |
| 782 | |
| 783 | switch (SvTYPE(sv)) { |
| 784 | case SVt_NULL: |
| 785 | break; |
| 786 | case SVt_PVAV: |
| 787 | av_clear((AV*)sv); |
| 788 | break; |
| 789 | case SVt_PVHV: |
| 790 | hv_clear((HV*)sv); |
| 791 | break; |
| 792 | case SVt_PVCV: |
| 793 | Perl_croak(aTHX_ "panic: leave_scope pad code"); |
| 794 | default: |
| 795 | SvOK_off(sv); |
| 796 | break; |
| 797 | } |
| 798 | SvPADSTALE_on(sv); /* mark as no longer live */ |
| 799 | } |
| 800 | else { /* Someone has a claim on this, so abandon it. */ |
| 801 | const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP); |
| 802 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
| 803 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
| 804 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
| 805 | default: *(SV**)ptr = newSV(0); break; |
| 806 | } |
| 807 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
| 808 | /* preserve pad nature, but also mark as not live |
| 809 | * for any closure capturing */ |
| 810 | SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE; |
| 811 | } |
| 812 | break; |
| 813 | case SAVEt_DELETE: |
| 814 | ptr = SSPOPPTR; |
| 815 | hv = (HV*)ptr; |
| 816 | ptr = SSPOPPTR; |
| 817 | (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD); |
| 818 | SvREFCNT_dec(hv); |
| 819 | Safefree(ptr); |
| 820 | break; |
| 821 | case SAVEt_DESTRUCTOR_X: |
| 822 | ptr = SSPOPPTR; |
| 823 | (*SSPOPDXPTR)(aTHX_ ptr); |
| 824 | break; |
| 825 | case SAVEt_REGCONTEXT: |
| 826 | case SAVEt_ALLOC: |
| 827 | i = SSPOPINT; |
| 828 | PL_savestack_ix -= i; /* regexp must have croaked */ |
| 829 | break; |
| 830 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
| 831 | i = SSPOPINT; |
| 832 | PL_stack_sp = PL_stack_base + i; |
| 833 | break; |
| 834 | case SAVEt_AELEM: /* array element */ |
| 835 | value = (SV*)SSPOPPTR; |
| 836 | i = SSPOPINT; |
| 837 | av = (AV*)SSPOPPTR; |
| 838 | ptr = av_fetch(av,i,1); |
| 839 | if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */ |
| 840 | SvREFCNT_dec(value); |
| 841 | if (ptr) { |
| 842 | sv = *(SV**)ptr; |
| 843 | if (sv && sv != &PL_sv_undef) { |
| 844 | if (SvTIED_mg((SV*)av, PERL_MAGIC_tied)) |
| 845 | SvREFCNT_inc_void_NN(sv); |
| 846 | goto restore_sv; |
| 847 | } |
| 848 | } |
| 849 | SvREFCNT_dec(av); |
| 850 | SvREFCNT_dec(value); |
| 851 | break; |
| 852 | case SAVEt_HELEM: /* hash element */ |
| 853 | value = (SV*)SSPOPPTR; |
| 854 | sv = (SV*)SSPOPPTR; |
| 855 | hv = (HV*)SSPOPPTR; |
| 856 | ptr = hv_fetch_ent(hv, sv, 1, 0); |
| 857 | if (ptr) { |
| 858 | const SV * const oval = HeVAL((HE*)ptr); |
| 859 | if (oval && oval != &PL_sv_undef) { |
| 860 | ptr = &HeVAL((HE*)ptr); |
| 861 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
| 862 | SvREFCNT_inc_void(*(SV**)ptr); |
| 863 | SvREFCNT_dec(sv); |
| 864 | av = (AV*)hv; /* what to refcnt_dec */ |
| 865 | goto restore_sv; |
| 866 | } |
| 867 | } |
| 868 | SvREFCNT_dec(hv); |
| 869 | SvREFCNT_dec(sv); |
| 870 | SvREFCNT_dec(value); |
| 871 | break; |
| 872 | case SAVEt_OP: |
| 873 | PL_op = (OP*)SSPOPPTR; |
| 874 | break; |
| 875 | case SAVEt_HINTS: |
| 876 | if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) { |
| 877 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); |
| 878 | GvHV(PL_hintgv) = NULL; |
| 879 | } |
| 880 | *(I32*)&PL_hints = (I32)SSPOPINT; |
| 881 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
| 882 | PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR; |
| 883 | if (PL_hints & HINT_LOCALIZE_HH) { |
| 884 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); |
| 885 | GvHV(PL_hintgv) = (HV*)SSPOPPTR; |
| 886 | assert(GvHV(PL_hintgv)); |
| 887 | } else if (!GvHV(PL_hintgv)) { |
| 888 | /* Need to add a new one manually, else gv_fetchpv() can |
| 889 | add one in this code: |
| 890 | |
| 891 | if (SvTYPE(gv) == SVt_PVGV) { |
| 892 | if (add) { |
| 893 | GvMULTI_on(gv); |
| 894 | gv_init_sv(gv, sv_type); |
| 895 | if (*name=='!' && sv_type == SVt_PVHV && len==1) |
| 896 | require_errno(gv); |
| 897 | } |
| 898 | return gv; |
| 899 | } |
| 900 | |
| 901 | and it won't have the magic set. */ |
| 902 | |
| 903 | HV *const hv = newHV(); |
| 904 | hv_magic(hv, NULL, PERL_MAGIC_hints); |
| 905 | GvHV(PL_hintgv) = hv; |
| 906 | } |
| 907 | assert(GvHV(PL_hintgv)); |
| 908 | break; |
| 909 | case SAVEt_COMPPAD: |
| 910 | PL_comppad = (PAD*)SSPOPPTR; |
| 911 | if (PL_comppad) |
| 912 | PL_curpad = AvARRAY(PL_comppad); |
| 913 | else |
| 914 | PL_curpad = NULL; |
| 915 | break; |
| 916 | case SAVEt_PADSV: |
| 917 | { |
| 918 | const PADOFFSET off = (PADOFFSET)SSPOPLONG; |
| 919 | ptr = SSPOPPTR; |
| 920 | if (ptr) |
| 921 | AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR; |
| 922 | } |
| 923 | break; |
| 924 | case SAVEt_SAVESWITCHSTACK: |
| 925 | { |
| 926 | dSP; |
| 927 | AV* const t = (AV*)SSPOPPTR; |
| 928 | AV* const f = (AV*)SSPOPPTR; |
| 929 | SWITCHSTACK(t,f); |
| 930 | PL_curstackinfo->si_stack = f; |
| 931 | } |
| 932 | break; |
| 933 | case SAVEt_SET_SVFLAGS: |
| 934 | { |
| 935 | const U32 val = (U32)SSPOPINT; |
| 936 | const U32 mask = (U32)SSPOPINT; |
| 937 | sv = (SV*)SSPOPPTR; |
| 938 | SvFLAGS(sv) &= ~mask; |
| 939 | SvFLAGS(sv) |= val; |
| 940 | } |
| 941 | break; |
| 942 | /* These are only saved in mathoms.c */ |
| 943 | case SAVEt_SVREF: /* scalar reference */ |
| 944 | value = (SV*)SSPOPPTR; |
| 945 | ptr = SSPOPPTR; |
| 946 | av = NULL; /* what to refcnt_dec */ |
| 947 | goto restore_sv; |
| 948 | case SAVEt_LONG: /* long reference */ |
| 949 | ptr = SSPOPPTR; |
| 950 | *(long*)ptr = (long)SSPOPLONG; |
| 951 | break; |
| 952 | case SAVEt_I16: /* I16 reference */ |
| 953 | ptr = SSPOPPTR; |
| 954 | *(I16*)ptr = (I16)SSPOPINT; |
| 955 | break; |
| 956 | case SAVEt_I8: /* I8 reference */ |
| 957 | ptr = SSPOPPTR; |
| 958 | *(I8*)ptr = (I8)SSPOPINT; |
| 959 | break; |
| 960 | case SAVEt_IV: /* IV reference */ |
| 961 | ptr = SSPOPPTR; |
| 962 | *(IV*)ptr = (IV)SSPOPIV; |
| 963 | break; |
| 964 | case SAVEt_NSTAB: |
| 965 | gv = (GV*)SSPOPPTR; |
| 966 | (void)sv_clear((SV*)gv); |
| 967 | break; |
| 968 | case SAVEt_DESTRUCTOR: |
| 969 | ptr = SSPOPPTR; |
| 970 | (*SSPOPDPTR)(ptr); |
| 971 | break; |
| 972 | case SAVEt_COP_ARYBASE: |
| 973 | ptr = SSPOPPTR; |
| 974 | i = SSPOPINT; |
| 975 | CopARYBASE_set((COP *)ptr, i); |
| 976 | break; |
| 977 | case SAVEt_COMPILE_WARNINGS: |
| 978 | ptr = SSPOPPTR; |
| 979 | |
| 980 | if (!specialWARN(PL_compiling.cop_warnings)) |
| 981 | PerlMemShared_free(PL_compiling.cop_warnings); |
| 982 | |
| 983 | PL_compiling.cop_warnings = (STRLEN*)ptr; |
| 984 | break; |
| 985 | case SAVEt_RE_STATE: |
| 986 | { |
| 987 | const struct re_save_state *const state |
| 988 | = (struct re_save_state *) |
| 989 | (PL_savestack + PL_savestack_ix |
| 990 | - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE); |
| 991 | PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE; |
| 992 | |
| 993 | if (PL_reg_start_tmp != state->re_state_reg_start_tmp) { |
| 994 | Safefree(PL_reg_start_tmp); |
| 995 | } |
| 996 | if (PL_reg_poscache != state->re_state_reg_poscache) { |
| 997 | Safefree(PL_reg_poscache); |
| 998 | } |
| 999 | Copy(state, &PL_reg_state, 1, struct re_save_state); |
| 1000 | } |
| 1001 | break; |
| 1002 | default: |
| 1003 | Perl_croak(aTHX_ "panic: leave_scope inconsistency"); |
| 1004 | } |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | void |
| 1009 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
| 1010 | { |
| 1011 | dVAR; |
| 1012 | #ifdef DEBUGGING |
| 1013 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
| 1014 | if (CxTYPE(cx) != CXt_SUBST) { |
| 1015 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
| 1016 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
| 1017 | PTR2UV(cx->blk_oldcop)); |
| 1018 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
| 1019 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
| 1020 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
| 1021 | PTR2UV(cx->blk_oldpm)); |
| 1022 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
| 1023 | } |
| 1024 | switch (CxTYPE(cx)) { |
| 1025 | case CXt_NULL: |
| 1026 | case CXt_BLOCK: |
| 1027 | break; |
| 1028 | case CXt_FORMAT: |
| 1029 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
| 1030 | PTR2UV(cx->blk_sub.cv)); |
| 1031 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n", |
| 1032 | PTR2UV(cx->blk_sub.gv)); |
| 1033 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n", |
| 1034 | PTR2UV(cx->blk_sub.dfoutgv)); |
| 1035 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
| 1036 | (int)CX_SUB_HASARGS_GET(cx)); |
| 1037 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
| 1038 | PTR2UV(cx->blk_sub.retop)); |
| 1039 | break; |
| 1040 | case CXt_SUB: |
| 1041 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
| 1042 | PTR2UV(cx->blk_sub.cv)); |
| 1043 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
| 1044 | (long)cx->blk_sub.olddepth); |
| 1045 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
| 1046 | (int)CX_SUB_HASARGS_GET(cx)); |
| 1047 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", |
| 1048 | (int)CX_SUB_LVAL(cx)); |
| 1049 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
| 1050 | PTR2UV(cx->blk_sub.retop)); |
| 1051 | break; |
| 1052 | case CXt_EVAL: |
| 1053 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
| 1054 | (long)cx->blk_eval.old_in_eval); |
| 1055 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
| 1056 | PL_op_name[cx->blk_eval.old_op_type], |
| 1057 | PL_op_desc[cx->blk_eval.old_op_type]); |
| 1058 | if (cx->blk_eval.old_namesv) |
| 1059 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
| 1060 | SvPVX_const(cx->blk_eval.old_namesv)); |
| 1061 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
| 1062 | PTR2UV(cx->blk_eval.old_eval_root)); |
| 1063 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n", |
| 1064 | PTR2UV(cx->blk_eval.retop)); |
| 1065 | break; |
| 1066 | |
| 1067 | case CXt_LOOP: |
| 1068 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
| 1069 | cx->blk_loop.label); |
| 1070 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
| 1071 | (long)cx->blk_loop.resetsp); |
| 1072 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n", |
| 1073 | PTR2UV(cx->blk_loop.redo_op)); |
| 1074 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n", |
| 1075 | PTR2UV(cx->blk_loop.next_op)); |
| 1076 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n", |
| 1077 | PTR2UV(cx->blk_loop.last_op)); |
| 1078 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
| 1079 | (long)cx->blk_loop.iterix); |
| 1080 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", |
| 1081 | PTR2UV(cx->blk_loop.iterary)); |
| 1082 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", |
| 1083 | PTR2UV(CxITERVAR(cx))); |
| 1084 | if (CxITERVAR(cx)) |
| 1085 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n", |
| 1086 | PTR2UV(cx->blk_loop.itersave)); |
| 1087 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n", |
| 1088 | PTR2UV(cx->blk_loop.iterlval)); |
| 1089 | break; |
| 1090 | |
| 1091 | case CXt_SUBST: |
| 1092 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
| 1093 | (long)cx->sb_iters); |
| 1094 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
| 1095 | (long)cx->sb_maxiters); |
| 1096 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
| 1097 | (long)cx->sb_rflags); |
| 1098 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
| 1099 | (long)cx->sb_once); |
| 1100 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
| 1101 | cx->sb_orig); |
| 1102 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
| 1103 | PTR2UV(cx->sb_dstr)); |
| 1104 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", |
| 1105 | PTR2UV(cx->sb_targ)); |
| 1106 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", |
| 1107 | PTR2UV(cx->sb_s)); |
| 1108 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", |
| 1109 | PTR2UV(cx->sb_m)); |
| 1110 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", |
| 1111 | PTR2UV(cx->sb_strend)); |
| 1112 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", |
| 1113 | PTR2UV(cx->sb_rxres)); |
| 1114 | break; |
| 1115 | } |
| 1116 | #else |
| 1117 | PERL_UNUSED_CONTEXT; |
| 1118 | PERL_UNUSED_ARG(cx); |
| 1119 | #endif /* DEBUGGING */ |
| 1120 | } |
| 1121 | |
| 1122 | /* |
| 1123 | * Local variables: |
| 1124 | * c-indentation-style: bsd |
| 1125 | * c-basic-offset: 4 |
| 1126 | * indent-tabs-mode: t |
| 1127 | * End: |
| 1128 | * |
| 1129 | * ex: set ts=8 sts=4 sw=4 noet: |
| 1130 | */ |