1 /* intrpvar.h 2 * 3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 * 2006, 2007, 2008 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 #include "handy.h" 12 13 /* 14 =head1 Per-Interpreter Variables 15 */ 16 17 /* These variables are per-interpreter in threaded/multiplicity builds, 18 * global otherwise. 19 20 * Don't forget to re-run regen/embed.pl to propagate changes! */ 21 22 /* New variables must be added to the very end for binary compatibility. */ 23 24 /* Don't forget to add your variable also to perl_clone()! (in sv.c) */ 25 26 /* The 'I' prefix is only needed for vars that need appropriate #defines 27 * generated when built with or without MULTIPLICITY. It is also used 28 * to generate the appropriate export list for win32. If the variable 29 * needs to be initialized, use PERLVARI. 30 * 31 * When building without MULTIPLICITY, these variables will be truly global. 32 * 33 * Important ones in the first cache line (if alignment is done right) */ 34 35 PERLVAR(I, stack_sp, SV **) /* top of the stack */ 36 #ifdef OP_IN_REGISTER 37 PERLVAR(I, opsave, OP *) 38 #else 39 PERLVAR(I, op, OP *) /* currently executing op */ 40 #endif 41 PERLVAR(I, curpad, SV **) /* active pad (lexicals+tmps) */ 42 43 PERLVAR(I, stack_base, SV **) 44 PERLVAR(I, stack_max, SV **) 45 46 PERLVAR(I, savestack, ANY *) /* items that need to be restored when 47 LEAVEing scopes we've ENTERed */ 48 PERLVAR(I, savestack_ix, I32) 49 PERLVAR(I, savestack_max, I32) 50 51 PERLVAR(I, scopestack, I32 *) /* scopes we've ENTERed */ 52 PERLVAR(I, scopestack_ix, I32) 53 PERLVAR(I, scopestack_max, I32) 54 55 PERLVAR(I, tmps_stack, SV **) /* mortals we've made */ 56 PERLVARI(I, tmps_ix, I32, -1) 57 PERLVARI(I, tmps_floor, I32, -1) 58 PERLVAR(I, tmps_max, I32) 59 60 PERLVARI(I, sub_generation, U32, 1) /* incr to invalidate method cache */ 61 62 PERLVAR(I, markstack, I32 *) /* stack_sp locations we're 63 remembering */ 64 PERLVAR(I, markstack_ptr, I32 *) 65 PERLVAR(I, markstack_max, I32 *) 66 67 #ifdef PERL_HASH_RANDOMIZE_KEYS 68 #ifdef USE_PERL_PERTURB_KEYS 69 PERLVARI(I, hash_rand_bits_enabled, U8, 1) /* used to randomize hash stuff 0 == no-random, 1 == random, 2 == determinsitic */ 70 #endif 71 PERLVARI(I, hash_rand_bits, UV, 0) /* used to randomize hash stuff */ 72 #endif 73 PERLVAR(I, strtab, HV *) /* shared string table */ 74 75 /* Fields used by magic variables such as $@, $/ and so on */ 76 PERLVAR(I, curpm, PMOP *) /* what to do \ interps in REs from */ 77 78 PERLVAR(I, tainting, bool) /* doing taint checks */ 79 PERLVAR(I, tainted, bool) /* using variables controlled by $< */ 80 PERLVAR(I, delaymagic, U16) /* ($<,$>) = ... */ 81 PERLVAR(I, localizing, U8) /* are we processing a local() list? */ 82 PERLVAR(I, in_eval, U8) /* trap "fatal" errors? */ 83 /* 84 85 =for apidoc mn|bool|PL_dowarn 86 87 The C variable which corresponds to Perl's $^W warning variable. 88 89 =cut 90 */ 91 92 PERLVAR(I, dowarn, U8) 93 94 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING) 95 # define PERL___I -1 96 #else 97 # define PERL___I 1 98 #endif 99 PERLVARI(I, utf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */ 100 #undef PERL___I 101 102 103 /* Stashes */ 104 PERLVAR(I, defstash, HV *) /* main symbol table */ 105 PERLVAR(I, curstash, HV *) /* symbol table for current package */ 106 107 PERLVAR(I, curcop, COP *) 108 PERLVAR(I, curstack, AV *) /* THE STACK */ 109 PERLVAR(I, curstackinfo, PERL_SI *) /* current stack + context */ 110 PERLVAR(I, mainstack, AV *) /* the stack when nothing funny is 111 happening */ 112 113 /* memory management */ 114 PERLVAR(I, sv_count, IV) /* how many SV* are currently allocated */ 115 PERLVAR(I, sv_objcount, IV) /* DEPRECATED AND UNMAINTAINED. 116 * Will be removed in Perl 5.20. 117 * Used to be: how many objects are currently allocated. */ 118 119 PERLVAR(I, sv_root, SV *) /* storage for SVs belonging to interp */ 120 PERLVAR(I, sv_arenaroot, SV *) /* list of areas for garbage collection */ 121 122 PERLVAR(I, reg_state, struct re_save_state) 123 124 /* the currently active slab in a chain of slabs of regmatch states, 125 * and the currently active state within that slab */ 126 127 PERLVARI(I, regmatch_slab, regmatch_slab *, NULL) 128 PERLVAR(I, regmatch_state, regmatch_state *) 129 130 PERLVAR(I, comppad, PAD *) /* storage for lexically scoped temporaries */ 131 132 /* 133 =for apidoc Amn|SV|PL_sv_undef 134 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>. 135 136 =for apidoc Amn|SV|PL_sv_no 137 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as 138 C<&PL_sv_no>. 139 140 =for apidoc Amn|SV|PL_sv_yes 141 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as 142 C<&PL_sv_yes>. 143 144 =cut 145 */ 146 147 PERLVAR(I, sv_undef, SV) 148 PERLVAR(I, sv_no, SV) 149 PERLVAR(I, sv_yes, SV) 150 PERLVAR(I, Sv, SV *) /* used to hold temporary values */ 151 152 PERLVAR(I, parser, yy_parser *) /* current parser state */ 153 154 PERLVAR(I, stashcache, HV *) /* Cache to speed up S_method_common */ 155 156 157 /* 158 =for apidoc Amn|STRLEN|PL_na 159 160 A convenience variable which is typically used with C<SvPV> when one 161 doesn't care about the length of the string. It is usually more efficient 162 to either declare a local variable and use that instead or to use the 163 C<SvPV_nolen> macro. 164 165 =cut 166 */ 167 168 PERLVAR(I, na, STRLEN) /* for use in SvPV when length is 169 Not Applicable */ 170 171 /* stat stuff */ 172 PERLVAR(I, statbuf, Stat_t) 173 PERLVAR(I, statcache, Stat_t) /* _ */ 174 PERLVAR(I, statgv, GV *) 175 PERLVARI(I, statname, SV *, NULL) 176 177 #ifdef HAS_TIMES 178 PERLVAR(I, timesbuf, struct tms) 179 #endif 180 181 /* 182 =for apidoc mn|SV*|PL_rs 183 184 The input record separator - C<$/> in Perl space. 185 186 =for apidoc mn|GV*|PL_last_in_gv 187 188 The GV which was last used for a filehandle input operation. (C<< <FH> >>) 189 190 =for apidoc mn|GV*|PL_ofsgv 191 192 The glob containing the output field separator - C<*,> in Perl space. 193 194 =cut 195 */ 196 197 PERLVAR(I, rs, SV *) /* input record separator $/ */ 198 PERLVAR(I, last_in_gv, GV *) /* GV used in last <FH> */ 199 PERLVAR(I, ofsgv, GV *) /* GV of output field separator *, */ 200 PERLVAR(I, defoutgv, GV *) /* default FH for output */ 201 PERLVARI(I, chopset, const char *, " \n-") /* $: */ 202 PERLVAR(I, formtarget, SV *) 203 PERLVAR(I, bodytarget, SV *) 204 PERLVAR(I, toptarget, SV *) 205 206 207 PERLVAR(I, restartop, OP *) /* propagating an error from croak? */ 208 PERLVAR(I, restartjmpenv, JMPENV *) /* target frame for longjmp in die */ 209 210 PERLVAR(I, top_env, JMPENV *) /* ptr to current sigjmp environment */ 211 PERLVAR(I, start_env, JMPENV) /* empty startup sigjmp environment */ 212 PERLVARI(I, errors, SV *, NULL) /* outstanding queued errors */ 213 214 /* statics "owned" by various functions */ 215 PERLVAR(I, hv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */ 216 217 PERLVAR(I, lastgotoprobe, OP*) /* from pp_ctl.c */ 218 219 /* sort stuff */ 220 PERLVAR(I, sortcop, OP *) /* user defined sort routine */ 221 PERLVAR(I, sortstash, HV *) /* which is in some package or other */ 222 PERLVAR(I, firstgv, GV *) /* $a */ 223 PERLVAR(I, secondgv, GV *) /* $b */ 224 225 /* float buffer */ 226 PERLVAR(I, efloatbuf, char *) 227 PERLVAR(I, efloatsize, STRLEN) 228 229 PERLVAR(I, regdummy, regnode) /* from regcomp.c */ 230 231 PERLVARI(I, dumpindent, U16, 4) /* number of blanks per dump 232 indentation level */ 233 234 PERLVAR(I, exit_flags, U8) /* was exit() unexpected, etc. */ 235 236 PERLVAR(I, utf8locale, bool) /* utf8 locale detected */ 237 238 PERLVARA(I, colors,6, char *) /* from regcomp.c */ 239 240 /* 241 =for apidoc Amn|peep_t|PL_peepp 242 243 Pointer to the per-subroutine peephole optimiser. This is a function 244 that gets called at the end of compilation of a Perl subroutine (or 245 equivalently independent piece of Perl code) to perform fixups of 246 some ops and to perform small-scale optimisations. The function is 247 called once for each subroutine that is compiled, and is passed, as sole 248 parameter, a pointer to the op that is the entry point to the subroutine. 249 It modifies the op tree in place. 250 251 The peephole optimiser should never be completely replaced. Rather, 252 add code to it by wrapping the existing optimiser. The basic way to do 253 this can be seen in L<perlguts/Compile pass 3: peephole optimization>. 254 If the new code wishes to operate on ops throughout the subroutine's 255 structure, rather than just at the top level, it is likely to be more 256 convenient to wrap the L</PL_rpeepp> hook. 257 258 =cut 259 */ 260 261 PERLVARI(I, peepp, peep_t, Perl_peep) 262 263 /* 264 =for apidoc Amn|peep_t|PL_rpeepp 265 266 Pointer to the recursive peephole optimiser. This is a function 267 that gets called at the end of compilation of a Perl subroutine (or 268 equivalently independent piece of Perl code) to perform fixups of some 269 ops and to perform small-scale optimisations. The function is called 270 once for each chain of ops linked through their C<op_next> fields; 271 it is recursively called to handle each side chain. It is passed, as 272 sole parameter, a pointer to the op that is at the head of the chain. 273 It modifies the op tree in place. 274 275 The peephole optimiser should never be completely replaced. Rather, 276 add code to it by wrapping the existing optimiser. The basic way to do 277 this can be seen in L<perlguts/Compile pass 3: peephole optimization>. 278 If the new code wishes to operate only on ops at a subroutine's top level, 279 rather than throughout the structure, it is likely to be more convenient 280 to wrap the L</PL_peepp> hook. 281 282 =cut 283 */ 284 285 PERLVARI(I, rpeepp, peep_t, Perl_rpeep) 286 287 /* 288 =for apidoc Amn|Perl_ophook_t|PL_opfreehook 289 290 When non-C<NULL>, the function pointed by this variable will be called each time an OP is freed with the corresponding OP as the argument. 291 This allows extensions to free any extra attribute they have locally attached to an OP. 292 It is also assured to first fire for the parent OP and then for its kids. 293 294 When you replace this variable, it is considered a good practice to store the possibly previously installed hook and that you recall it inside your own. 295 296 =cut 297 */ 298 299 PERLVARI(I, opfreehook, Perl_ophook_t, 0) /* op_free() hook */ 300 301 PERLVARI(I, watchaddr, char **, 0) 302 PERLVAR(I, watchok, char *) 303 304 PERLVAR(I, perldb, U32) 305 306 PERLVAR(I, signals, U32) /* Using which pre-5.8 signals */ 307 308 PERLVAR(I, reentrant_retint, int) /* Integer return value from reentrant functions */ 309 310 /* pseudo environmental stuff */ 311 PERLVAR(I, origargc, int) 312 PERLVAR(I, origargv, char **) 313 PERLVAR(I, envgv, GV *) 314 PERLVAR(I, incgv, GV *) 315 PERLVAR(I, hintgv, GV *) 316 PERLVAR(I, origfilename, char *) 317 PERLVAR(I, diehook, SV *) 318 PERLVAR(I, warnhook, SV *) 319 320 /* switches */ 321 PERLVAR(I, patchlevel, SV *) 322 PERLVAR(I, apiversion, SV *) 323 PERLVAR(I, localpatches, const char * const *) 324 PERLVARI(I, splitstr, const char *, " ") 325 326 PERLVAR(I, minus_c, bool) 327 PERLVAR(I, minus_n, bool) 328 PERLVAR(I, minus_p, bool) 329 PERLVAR(I, minus_l, bool) 330 PERLVAR(I, minus_a, bool) 331 PERLVAR(I, minus_F, bool) 332 PERLVAR(I, doswitches, bool) 333 PERLVAR(I, minus_E, bool) 334 335 PERLVAR(I, inplace, char *) 336 PERLVAR(I, e_script, SV *) 337 338 PERLVAR(I, basetime, Time_t) /* $^T */ 339 340 PERLVARI(I, maxsysfd, I32, MAXSYSFD) 341 /* top fd to pass to subprocesses */ 342 PERLVAR(I, statusvalue, I32) /* $? */ 343 #ifdef VMS 344 PERLVAR(I, statusvalue_vms, U32) 345 #else 346 PERLVAR(I, statusvalue_posix, I32) 347 #endif 348 349 PERLVARI(I, sig_pending, int, 0) /* Number if highest signal pending */ 350 PERLVAR(I, psig_pend, int *) /* per-signal "count" of pending */ 351 352 /* shortcuts to various I/O objects */ 353 PERLVAR(I, stdingv, GV *) /* *STDIN */ 354 PERLVAR(I, stderrgv, GV *) /* *STDERR */ 355 PERLVAR(I, defgv, GV *) 356 PERLVAR(I, argvgv, GV *) /* *ARGV */ 357 PERLVAR(I, argvoutgv, GV *) /* *ARGVOUT */ 358 PERLVAR(I, argvout_stack, AV *) 359 360 /* shortcuts to regexp stuff */ 361 PERLVAR(I, replgv, GV *) /* *^R */ 362 363 /* shortcuts to misc objects */ 364 PERLVAR(I, errgv, GV *) /* *@ */ 365 366 /* shortcuts to debugging objects */ 367 PERLVAR(I, DBgv, GV *) /* *DB::DB */ 368 PERLVAR(I, DBline, GV *) /* *DB::line */ 369 370 /* 371 =for apidoc mn|GV *|PL_DBsub 372 When Perl is run in debugging mode, with the B<-d> switch, this GV contains 373 the SV which holds the name of the sub being debugged. This is the C 374 variable which corresponds to Perl's $DB::sub variable. See 375 C<PL_DBsingle>. 376 377 =for apidoc mn|SV *|PL_DBsingle 378 When Perl is run in debugging mode, with the B<-d> switch, this SV is a 379 boolean which indicates whether subs are being single-stepped. 380 Single-stepping is automatically turned on after every step. This is the C 381 variable which corresponds to Perl's $DB::single variable. See 382 C<PL_DBsub>. 383 384 =for apidoc mn|SV *|PL_DBtrace 385 Trace variable used when Perl is run in debugging mode, with the B<-d> 386 switch. This is the C variable which corresponds to Perl's $DB::trace 387 variable. See C<PL_DBsingle>. 388 389 =cut 390 */ 391 392 PERLVAR(I, DBsub, GV *) /* *DB::sub */ 393 PERLVAR(I, DBsingle, SV *) /* $DB::single */ 394 PERLVAR(I, DBtrace, SV *) /* $DB::trace */ 395 PERLVAR(I, DBsignal, SV *) /* $DB::signal */ 396 PERLVAR(I, dbargs, AV *) /* args to call listed by caller function */ 397 398 /* symbol tables */ 399 PERLVAR(I, debstash, HV *) /* symbol table for perldb package */ 400 PERLVAR(I, globalstash, HV *) /* global keyword overrides imported here */ 401 PERLVAR(I, curstname, SV *) /* name of current package */ 402 PERLVAR(I, beginav, AV *) /* names of BEGIN subroutines */ 403 PERLVAR(I, endav, AV *) /* names of END subroutines */ 404 PERLVAR(I, unitcheckav, AV *) /* names of UNITCHECK subroutines */ 405 PERLVAR(I, checkav, AV *) /* names of CHECK subroutines */ 406 PERLVAR(I, initav, AV *) /* names of INIT subroutines */ 407 408 /* subprocess state */ 409 PERLVAR(I, fdpid, AV *) /* keep fd-to-pid mappings for my_popen */ 410 411 /* internal state */ 412 PERLVARI(I, op_mask, char *, NULL) /* masked operations for safe evals */ 413 414 /* current interpreter roots */ 415 PERLVAR(I, main_cv, CV *) 416 PERLVAR(I, main_root, OP *) 417 PERLVAR(I, main_start, OP *) 418 PERLVAR(I, eval_root, OP *) 419 PERLVAR(I, eval_start, OP *) 420 421 /* runtime control stuff */ 422 PERLVARI(I, curcopdb, COP *, NULL) 423 424 PERLVAR(I, filemode, int) /* so nextargv() can preserve mode */ 425 PERLVAR(I, lastfd, int) /* what to preserve mode on */ 426 PERLVAR(I, oldname, char *) /* what to preserve mode on */ 427 PERLVAR(I, Argv, const char **) /* stuff to free from do_aexec, vfork safe */ 428 PERLVAR(I, Cmd, char *) /* stuff to free from do_aexec, vfork safe */ 429 /* Elements in this array have ';' appended and are injected as a single line 430 into the tokeniser. You can't put any (literal) newlines into any program 431 you stuff in into this array, as the point where it's injected is expecting 432 a single physical line. */ 433 PERLVAR(I, preambleav, AV *) 434 PERLVAR(I, mess_sv, SV *) 435 PERLVAR(I, ors_sv, SV *) /* output record separator $\ */ 436 437 /* funky return mechanisms */ 438 PERLVAR(I, forkprocess, int) /* so do_open |- can return proc# */ 439 440 /* statics moved here for shared library purposes */ 441 PERLVARI(I, gensym, I32, 0) /* next symbol for getsym() to define */ 442 PERLVARI(I, cv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */ 443 PERLVAR(I, taint_warn, bool) /* taint warns instead of dying */ 444 PERLVARI(I, laststype, U16, OP_STAT) 445 446 PERLVARI(I, laststatval, int, -1) 447 448 PERLVAR(I, modcount, I32) /* how much op_lvalue()ification in 449 assignment? */ 450 451 /* interpreter atexit processing */ 452 PERLVARI(I, exitlistlen, I32, 0) /* length of same */ 453 PERLVARI(I, exitlist, PerlExitListEntry *, NULL) 454 /* list of exit functions */ 455 456 /* 457 =for apidoc Amn|HV*|PL_modglobal 458 459 C<PL_modglobal> is a general purpose, interpreter global HV for use by 460 extensions that need to keep information on a per-interpreter basis. 461 In a pinch, it can also be used as a symbol table for extensions 462 to share data among each other. It is a good idea to use keys 463 prefixed by the package name of the extension that owns the data. 464 465 =cut 466 */ 467 468 PERLVAR(I, modglobal, HV *) /* per-interp module data */ 469 470 /* these used to be in global before 5.004_68 */ 471 PERLVARI(I, profiledata, U32 *, NULL) /* table of ops, counts */ 472 473 PERLVAR(I, compiling, COP) /* compiling/done executing marker */ 474 475 PERLVAR(I, compcv, CV *) /* currently compiling subroutine */ 476 PERLVAR(I, comppad_name, PADNAMELIST *) /* variable names for "my" variables */ 477 PERLVAR(I, comppad_name_fill, I32) /* last "introduced" variable offset */ 478 PERLVAR(I, comppad_name_floor, I32) /* start of vars in innermost block */ 479 480 #ifdef HAVE_INTERP_INTERN 481 PERLVAR(I, sys_intern, struct interp_intern) 482 /* platform internals */ 483 #endif 484 485 /* more statics moved here */ 486 PERLVAR(I, DBcv, CV *) /* from perl.c */ 487 PERLVARI(I, generation, int, 100) /* from op.c */ 488 489 PERLVAR(I, unicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */ 490 491 PERLVARI(I, in_clean_objs,bool, FALSE) /* from sv.c */ 492 PERLVARI(I, in_clean_all, bool, FALSE) /* ptrs to freed SVs now legal */ 493 PERLVAR(I, nomemok, bool) /* let malloc context handle nomem */ 494 PERLVARI(I, savebegin, bool, FALSE) /* save BEGINs for compiler */ 495 496 497 PERLVAR(I, delaymagic_uid, Uid_t) /* current real user id, only for delaymagic */ 498 PERLVAR(I, delaymagic_euid, Uid_t) /* current effective user id, only for delaymagic */ 499 PERLVAR(I, delaymagic_gid, Gid_t) /* current real group id, only for delaymagic */ 500 PERLVAR(I, delaymagic_egid, Gid_t) /* current effective group id, only for delaymagic */ 501 PERLVARI(I, an, U32, 0) /* malloc sequence number */ 502 503 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */ 504 PERLVARI(I, breakable_sub_gen, U32, 0) 505 506 #ifdef DEBUGGING 507 /* exercise wrap-around */ 508 #define PERL_COP_SEQMAX (U32_MAX-50) 509 #else 510 #define PERL_COP_SEQMAX 0 511 #endif 512 PERLVARI(I, cop_seqmax, U32, PERL_COP_SEQMAX) /* statement sequence number */ 513 #undef PERL_COP_SEQMAX 514 515 PERLVARI(I, evalseq, U32, 0) /* eval sequence number */ 516 PERLVAR(I, origalen, U32) 517 PERLVAR(I, origenviron, char **) 518 #ifdef PERL_USES_PL_PIDSTATUS 519 PERLVAR(I, pidstatus, HV *) /* pid-to-status mappings for waitpid */ 520 #endif 521 PERLVAR(I, osname, char *) /* operating system */ 522 523 PERLVAR(I, sighandlerp, Sighandler_t) 524 525 PERLVARA(I, body_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */ 526 527 PERLVAR(I, debug, VOL U32) /* flags given to -D switch */ 528 529 PERLVARI(I, maxo, int, MAXO) /* maximum number of ops */ 530 531 PERLVARI(I, runops, runops_proc_t, RUNOPS_DEFAULT) 532 533 PERLVAR(I, subname, SV *) /* name of current subroutine */ 534 535 PERLVAR(I, subline, I32) /* line this subroutine began on */ 536 PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */ 537 538 PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */ 539 PERLVAR(I, padix, I32) /* max used index in current "register" pad */ 540 541 PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */ 542 543 PERLVAR(I, hints, U32) /* pragma-tic compile-time flags */ 544 545 #ifdef USE_LOCALE_COLLATE 546 PERLVAR(I, collation_name, char *) /* Name of current collation */ 547 PERLVAR(I, collxfrm_base, Size_t) /* Basic overhead in *xfrm() */ 548 PERLVARI(I, collxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */ 549 PERLVARI(I, collation_ix, U32, 0) /* Collation generation index */ 550 PERLVARI(I, collation_standard, bool, TRUE) 551 /* Assume simple collation */ 552 #endif /* USE_LOCALE_COLLATE */ 553 554 #ifdef PERL_SAWAMPERSAND 555 PERLVAR(I, sawampersand, U8) /* must save all match strings */ 556 #endif 557 558 PERLVAR(I, unsafe, bool) 559 PERLVAR(I, colorset, bool) /* from regcomp.c */ 560 561 /* current phase the interpreter is in 562 for ordering this structure to remove holes, we're assuming that this is 4 563 bytes. */ 564 PERLVARI(I, phase, enum perl_phase, PERL_PHASE_CONSTRUCT) 565 566 PERLVARI(I, in_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */ 567 568 /* This value may be set when embedding for full cleanup */ 569 /* 0=none, 1=full, 2=full with checks */ 570 /* mod_perl is special, and also assigns a meaning -1 */ 571 PERLVARI(I, perl_destruct_level, signed char, 0) 572 573 #ifdef USE_LOCALE_NUMERIC 574 575 PERLVARI(I, numeric_standard, bool, TRUE) 576 /* Assume simple numerics */ 577 PERLVARI(I, numeric_local, bool, TRUE) 578 /* Assume local numerics */ 579 PERLVAR(I, numeric_name, char *) /* Name of current numeric locale */ 580 PERLVAR(I, numeric_radix_sv, SV *) /* The radix separator if not '.' */ 581 582 #endif /* !USE_LOCALE_NUMERIC */ 583 584 /* Unicode inversion lists */ 585 PERLVAR(I, ASCII, SV *) 586 PERLVAR(I, Latin1, SV *) 587 PERLVAR(I, AboveLatin1, SV *) 588 589 PERLVAR(I, NonL1NonFinalFold, SV *) 590 PERLVAR(I, HasMultiCharFold, SV *) 591 592 /* utf8 character class swashes */ 593 PERLVAR(I, utf8_mark, SV *) 594 PERLVAR(I, utf8_X_regular_begin, SV *) 595 PERLVAR(I, utf8_X_extend, SV *) 596 PERLVAR(I, utf8_toupper, SV *) 597 PERLVAR(I, utf8_totitle, SV *) 598 PERLVAR(I, utf8_tolower, SV *) 599 PERLVAR(I, utf8_tofold, SV *) 600 PERLVAR(I, utf8_charname_begin, SV *) 601 PERLVAR(I, utf8_charname_continue, SV *) 602 603 PERLVARA(I, utf8_swash_ptrs, POSIX_SWASH_COUNT, SV *) 604 PERLVARA(I, Posix_ptrs, POSIX_CC_COUNT, SV *) 605 PERLVARA(I, L1Posix_ptrs, POSIX_CC_COUNT, SV *) 606 PERLVARA(I, XPosix_ptrs, POSIX_CC_COUNT, SV *) 607 608 PERLVAR(I, last_swash_hv, HV *) 609 PERLVAR(I, last_swash_tmps, U8 *) 610 PERLVAR(I, last_swash_slen, STRLEN) 611 PERLVARA(I, last_swash_key,UTF8_MAXBYTES-1, U8) 612 PERLVAR(I, last_swash_klen, U8) /* Only needs to store 0-12 */ 613 614 #ifdef FCRYPT 615 PERLVARI(I, cryptseen, bool, FALSE) /* has fast crypt() been initialized? */ 616 #else 617 /* One byte hole in the interpreter structure. */ 618 #endif 619 620 PERLVAR(I, pad_reset_pending, bool) /* reset pad on next attempted alloc */ 621 PERLVAR(I, srand_called, bool) 622 623 /* Array of signal handlers, indexed by signal number, through which the C 624 signal handler dispatches. */ 625 PERLVAR(I, psig_ptr, SV **) 626 /* Array of names of signals, indexed by signal number, for (re)use as the first 627 argument to a signal handler. Only one block of memory is allocated for 628 both psig_name and psig_ptr. */ 629 PERLVAR(I, psig_name, SV **) 630 631 #if defined(PERL_IMPLICIT_SYS) 632 PERLVAR(I, Mem, struct IPerlMem *) 633 PERLVAR(I, MemShared, struct IPerlMem *) 634 PERLVAR(I, MemParse, struct IPerlMem *) 635 PERLVAR(I, Env, struct IPerlEnv *) 636 PERLVAR(I, StdIO, struct IPerlStdIO *) 637 PERLVAR(I, LIO, struct IPerlLIO *) 638 PERLVAR(I, Dir, struct IPerlDir *) 639 PERLVAR(I, Sock, struct IPerlSock *) 640 PERLVAR(I, Proc, struct IPerlProc *) 641 #endif 642 643 PERLVAR(I, ptr_table, PTR_TBL_t *) 644 PERLVARI(I, beginav_save, AV *, NULL) /* save BEGIN{}s when compiling */ 645 646 PERLVAR(I, body_arenas, void *) /* pointer to list of body-arenas */ 647 648 649 #if defined(USE_ITHREADS) 650 PERLVAR(I, regex_pad, SV **) /* Shortcut into the array of 651 regex_padav */ 652 PERLVAR(I, regex_padav, AV *) /* All regex objects, indexed via the 653 values in op_pmoffset of pmop. 654 Entry 0 is an SV whose PV is a 655 "packed" list of IVs listing 656 the now-free slots in the array */ 657 PERLVAR(I, stashpad, HV **) /* for CopSTASH */ 658 PERLVARI(I, stashpadmax, PADOFFSET, 64) 659 PERLVARI(I, stashpadix, PADOFFSET, 0) 660 #endif 661 662 #ifdef USE_REENTRANT_API 663 PERLVAR(I, reentrant_buffer, REENTR *) /* here we store the _r buffers */ 664 #endif 665 666 PERLVAR(I, custom_op_names, HV *) /* Names of user defined ops */ 667 PERLVAR(I, custom_op_descs, HV *) /* Descriptions of user defined ops */ 668 669 #ifdef PERLIO_LAYERS 670 PERLVARI(I, perlio, PerlIOl *, NULL) 671 PERLVARI(I, known_layers, PerlIO_list_t *, NULL) 672 PERLVARI(I, def_layerlist, PerlIO_list_t *, NULL) 673 #endif 674 675 PERLVARI(I, encoding, SV *, NULL) /* character encoding */ 676 677 PERLVAR(I, utf8_idstart, SV *) 678 PERLVAR(I, utf8_idcont, SV *) 679 PERLVAR(I, utf8_xidstart, SV *) 680 PERLVAR(I, utf8_perl_idstart, SV *) 681 PERLVAR(I, utf8_perl_idcont, SV *) 682 PERLVAR(I, utf8_xidcont, SV *) 683 684 PERLVAR(I, sort_RealCmp, SVCOMPARE_t) 685 686 PERLVARI(I, checkav_save, AV *, NULL) /* save CHECK{}s when compiling */ 687 PERLVARI(I, unitcheckav_save, AV *, NULL) 688 /* save UNITCHECK{}s when compiling */ 689 690 PERLVARI(I, clocktick, long, 0) /* this many times() ticks in a second */ 691 692 /* Hooks to shared SVs and locks. */ 693 PERLVARI(I, sharehook, share_proc_t, Perl_sv_nosharing) 694 PERLVARI(I, lockhook, share_proc_t, Perl_sv_nosharing) 695 #ifdef NO_MATHOMS 696 # define PERL_UNLOCK_HOOK Perl_sv_nosharing 697 #else 698 /* This reference ensures that the mathoms are linked with perl */ 699 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking 700 #endif 701 PERLVARI(I, unlockhook, share_proc_t, PERL_UNLOCK_HOOK) 702 703 PERLVARI(I, threadhook, thrhook_proc_t, Perl_nothreadhook) 704 705 /* Can shared object be destroyed */ 706 PERLVARI(I, destroyhook, destroyable_proc_t, Perl_sv_destroyable) 707 708 #ifndef PERL_MICRO 709 PERLVARI(I, signalhook, despatch_signals_proc_t, Perl_despatch_signals) 710 #endif 711 712 PERLVARI(I, isarev, HV *, NULL) /* Reverse map of @ISA dependencies */ 713 714 /* Register of known Method Resolution Orders. 715 What this actually points to is an implementation detail (it may change to 716 a structure incorporating a reference count - use mro_get_from_name to 717 retrieve a C<struct mro_alg *> */ 718 PERLVAR(I, registered_mros, HV *) 719 720 /* Compile-time block start/end hooks */ 721 PERLVAR(I, blockhooks, AV *) 722 723 /* Everything that folds to a given character, for case insensitivity regex 724 * matching */ 725 PERLVARI(I, utf8_foldclosures, HV *, NULL) 726 727 /* List of characters that participate in folds (except marks, etc in 728 * multi-char folds) */ 729 PERLVARI(I, utf8_foldable, SV *, NULL) 730 731 PERLVAR(I, custom_ops, HV *) /* custom op registrations */ 732 733 PERLVAR(I, Xpv, XPV *) /* (unused) held temporary value */ 734 735 /* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be 736 present always, as -DDEBUGGING must be binary compatible with non. */ 737 PERLVARI(I, scopestack_name, const char * *, NULL) 738 739 PERLVAR(I, debug_pad, struct perl_debug_pad) /* always needed because of the re extension */ 740 741 /* Hook for File::Glob */ 742 PERLVARI(I, globhook, globhook_t, NULL) 743 744 /* The last unconditional member of the interpreter structure when 5.18.2 was 745 released. The offset of the end of this is baked into a global variable in 746 any shared perl library which will allow a sanity test in future perl 747 releases. */ 748 #define PERL_LAST_5_18_0_INTERP_MEMBER Iglobhook 749 750 #ifdef PERL_IMPLICIT_CONTEXT 751 PERLVARI(I, my_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */ 752 PERLVARI(I, my_cxt_size, int, 0) /* size of PL_my_cxt_list */ 753 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 754 PERLVARI(I, my_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */ 755 # endif 756 #endif 757 758 #ifdef PERL_TRACK_MEMPOOL 759 /* For use with the memory debugging code in util.c */ 760 PERLVAR(I, memory_debug_header, struct perl_memory_debug_header) 761 #endif 762 763 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 764 /* File descriptor to talk to the child which dumps scalars. */ 765 PERLVARI(I, dumper_fd, int, -1) 766 #endif 767 768 #ifdef PERL_MAD 769 PERLVARI(I, madskills, bool, FALSE) /* preserve all syntactic info */ 770 /* (MAD = Misc Attribute Decoration) */ 771 PERLVARI(I, xmlfp, PerlIO *, NULL) 772 #endif 773 774 #ifdef DEBUG_LEAKING_SCALARS 775 PERLVARI(I, sv_serial, U32, 0) /* SV serial number, used in sv.c */ 776 #endif 777 778 /* If you are adding a U8 or U16, check to see if there are 'Space' comments 779 * above on where there are gaps which currently will be structure padding. */ 780 781 /* Within a stable branch, new variables must be added to the very end, before 782 * this comment, for binary compatibility (the offsets of the old members must 783 * not change). 784 * (Don't forget to add your variable also to perl_clone()!) 785 * XSUB.h provides wrapper functions via perlapi.h that make this 786 * irrelevant, but not all code may be expected to #include XSUB.h. 787 */ 788