3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 * 2006, 2007, 2008 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 =head1 Per-Interpreter Variables
15 /* These variables are per-interpreter in threaded/multiplicity builds,
18 * Don't forget to re-run regen/embed.pl to propagate changes! */
20 /* New variables must be added to the very end for binary compatibility. */
22 /* Don't forget to add your variable also to perl_clone()! (in sv.c) */
24 /* The 'I' prefix is only needed for vars that need appropriate #defines
25 * generated when built with or without MULTIPLICITY. It is also used
26 * to generate the appropriate export list for win32. If the variable
27 * needs to be initialized, use PERLVARI.
29 * When building without MULTIPLICITY, these variables will be truly global.
31 * Important ones in the first cache line (if alignment is done right) */
33 PERLVAR(I, stack_sp, SV **) /* top of the stack */
35 PERLVAR(I, opsave, OP *)
37 PERLVAR(I, op, OP *) /* currently executing op */
39 PERLVAR(I, curpad, SV **) /* active pad (lexicals+tmps) */
41 PERLVAR(I, stack_base, SV **)
42 PERLVAR(I, stack_max, SV **)
44 PERLVAR(I, scopestack, I32 *) /* scopes we've ENTERed */
45 /* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be
46 present always, as -DDEUBGGING must be binary compatible with non. */
47 PERLVARI(I, scopestack_name, const char * *, NULL)
48 PERLVAR(I, scopestack_ix, I32)
49 PERLVAR(I, scopestack_max, I32)
51 PERLVAR(I, savestack, ANY *) /* items that need to be restored when
52 LEAVEing scopes we've ENTERed */
53 PERLVAR(I, savestack_ix, I32)
54 PERLVAR(I, savestack_max, I32)
56 PERLVAR(I, tmps_stack, SV **) /* mortals we've made */
57 PERLVARI(I, tmps_ix, I32, -1)
58 PERLVARI(I, tmps_floor, I32, -1)
59 PERLVAR(I, tmps_max, I32)
60 PERLVAR(I, modcount, I32) /* how much op_lvalue()ification in
63 PERLVAR(I, markstack, I32 *) /* stack_sp locations we're
65 PERLVAR(I, markstack_ptr, I32 *)
66 PERLVAR(I, markstack_max, I32 *)
68 PERLVAR(I, Sv, SV *) /* used to hold temporary values */
69 PERLVAR(I, Xpv, XPV *) /* used to hold temporary values */
72 =for apidoc Amn|STRLEN|PL_na
74 A convenience variable which is typically used with C<SvPV> when one
75 doesn't care about the length of the string. It is usually more efficient
76 to either declare a local variable and use that instead or to use the
82 PERLVAR(I, na, STRLEN) /* for use in SvPV when length is
86 PERLVAR(I, statbuf, Stat_t)
87 PERLVAR(I, statcache, Stat_t) /* _ */
88 PERLVAR(I, statgv, GV *)
89 PERLVARI(I, statname, SV *, NULL)
92 PERLVAR(I, timesbuf, struct tms)
95 /* Fields used by magic variables such as $@, $/ and so on */
96 PERLVAR(I, curpm, PMOP *) /* what to do \ interps in REs from */
99 =for apidoc mn|SV*|PL_rs
101 The input record separator - C<$/> in Perl space.
103 =for apidoc mn|GV*|PL_last_in_gv
105 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
107 =for apidoc mn|GV*|PL_ofsgv
109 The glob containing the output field separator - C<*,> in Perl space.
114 PERLVAR(I, rs, SV *) /* input record separator $/ */
115 PERLVAR(I, last_in_gv, GV *) /* GV used in last <FH> */
116 PERLVAR(I, ofsgv, GV *) /* GV of output field separator *, */
117 PERLVAR(I, defoutgv, GV *) /* default FH for output */
118 PERLVARI(I, chopset, const char *, " \n-") /* $: */
119 PERLVAR(I, formtarget, SV *)
120 PERLVAR(I, bodytarget, SV *)
121 PERLVAR(I, toptarget, SV *)
124 PERLVAR(I, defstash, HV *) /* main symbol table */
125 PERLVAR(I, curstash, HV *) /* symbol table for current package */
127 PERLVAR(I, restartop, OP *) /* propagating an error from croak? */
128 PERLVAR(I, restartjmpenv, JMPENV *) /* target frame for longjmp in die */
129 PERLVAR(I, curcop, COP *)
130 PERLVAR(I, curstack, AV *) /* THE STACK */
131 PERLVAR(I, curstackinfo, PERL_SI *) /* current stack + context */
132 PERLVAR(I, mainstack, AV *) /* the stack when nothing funny is
135 PERLVAR(I, top_env, JMPENV *) /* ptr to current sigjmp environment */
136 PERLVAR(I, start_env, JMPENV) /* empty startup sigjmp environment */
137 PERLVARI(I, errors, SV *, NULL) /* outstanding queued errors */
139 /* statics "owned" by various functions */
140 PERLVAR(I, hv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
142 PERLVAR(I, lastgotoprobe, OP*) /* from pp_ctl.c */
145 PERLVAR(I, sortcop, OP *) /* user defined sort routine */
146 PERLVAR(I, sortstash, HV *) /* which is in some package or other */
147 PERLVAR(I, firstgv, GV *) /* $a */
148 PERLVAR(I, secondgv, GV *) /* $b */
151 PERLVAR(I, efloatbuf, char *)
152 PERLVAR(I, efloatsize, STRLEN)
156 PERLVAR(I, reg_state, struct re_save_state)
158 PERLVAR(I, regdummy, regnode) /* from regcomp.c */
160 PERLVARI(I, dumpindent, U16, 4) /* number of blanks per dump
164 PERLVAR(I, utf8locale, bool) /* utf8 locale detected */
165 PERLVARI(I, rehash_seed_set, bool, FALSE) /* 582 hash initialized? */
167 PERLVARA(I, colors,6, char *) /* from regcomp.c */
170 =for apidoc Amn|peep_t|PL_peepp
172 Pointer to the per-subroutine peephole optimiser. This is a function
173 that gets called at the end of compilation of a Perl subroutine (or
174 equivalently independent piece of Perl code) to perform fixups of
175 some ops and to perform small-scale optimisations. The function is
176 called once for each subroutine that is compiled, and is passed, as sole
177 parameter, a pointer to the op that is the entry point to the subroutine.
178 It modifies the op tree in place.
180 The peephole optimiser should never be completely replaced. Rather,
181 add code to it by wrapping the existing optimiser. The basic way to do
182 this can be seen in L<perlguts/Compile pass 3: peephole optimization>.
183 If the new code wishes to operate on ops throughout the subroutine's
184 structure, rather than just at the top level, it is likely to be more
185 convenient to wrap the L</PL_rpeepp> hook.
190 PERLVARI(I, peepp, peep_t, Perl_peep)
193 =for apidoc Amn|peep_t|PL_rpeepp
195 Pointer to the recursive peephole optimiser. This is a function
196 that gets called at the end of compilation of a Perl subroutine (or
197 equivalently independent piece of Perl code) to perform fixups of some
198 ops and to perform small-scale optimisations. The function is called
199 once for each chain of ops linked through their C<op_next> fields;
200 it is recursively called to handle each side chain. It is passed, as
201 sole parameter, a pointer to the op that is at the head of the chain.
202 It modifies the op tree in place.
204 The peephole optimiser should never be completely replaced. Rather,
205 add code to it by wrapping the existing optimiser. The basic way to do
206 this can be seen in L<perlguts/Compile pass 3: peephole optimization>.
207 If the new code wishes to operate only on ops at a subroutine's top level,
208 rather than throughout the structure, it is likely to be more convenient
209 to wrap the L</PL_peepp> hook.
214 PERLVARI(I, rpeepp, peep_t, Perl_rpeep)
217 =for apidoc Amn|Perl_ophook_t|PL_opfreehook
219 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.
220 This allows extensions to free any extra attribute they have locally attached to an OP.
221 It is also assured to first fire for the parent OP and then for its kids.
223 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.
228 PERLVARI(I, opfreehook, Perl_ophook_t, 0) /* op_free() hook */
230 PERLVARI(I, watchaddr, char **, 0)
231 PERLVAR(I, watchok, char *)
233 /* the currently active slab in a chain of slabs of regmatch states,
234 * and the currently active state within that slab */
236 PERLVARI(I, regmatch_slab, regmatch_slab *, NULL)
237 PERLVAR(I, regmatch_state, regmatch_state *)
239 /* Put anything new that is pointer aligned here. */
241 PERLVAR(I, delaymagic, U16) /* ($<,$>) = ... */
242 PERLVAR(I, localizing, U8) /* are we processing a local() list? */
243 PERLVAR(I, colorset, bool) /* from regcomp.c */
244 PERLVAR(I, in_eval, U8) /* trap "fatal" errors? */
245 PERLVAR(I, tainted, bool) /* using variables controlled by $< */
246 PERLVAR(I, tainting, bool) /* doing taint checks */
248 /* This value may be set when embedding for full cleanup */
249 /* 0=none, 1=full, 2=full with checks */
250 /* mod_perl is special, and also assigns a meaning -1 */
251 PERLVARI(I, perl_destruct_level, signed char, 0)
253 /* current phase the interpreter is in */
254 PERLVARI(I, phase, enum perl_phase, PERL_PHASE_CONSTRUCT)
256 PERLVAR(I, perldb, U32)
258 PERLVAR(I, signals, U32) /* Using which pre-5.8 signals */
260 /* pseudo environmental stuff */
261 PERLVAR(I, origargc, int)
262 PERLVAR(I, origargv, char **)
263 PERLVAR(I, envgv, GV *)
264 PERLVAR(I, incgv, GV *)
265 PERLVAR(I, hintgv, GV *)
266 PERLVAR(I, origfilename, char *)
267 PERLVAR(I, diehook, SV *)
268 PERLVAR(I, warnhook, SV *)
271 PERLVAR(I, patchlevel, SV *)
272 PERLVAR(I, apiversion, SV *)
273 PERLVAR(I, localpatches, const char * const *)
274 PERLVARI(I, splitstr, const char *, " ")
276 PERLVAR(I, minus_c, bool)
277 PERLVAR(I, minus_n, bool)
278 PERLVAR(I, minus_p, bool)
279 PERLVAR(I, minus_l, bool)
280 PERLVAR(I, minus_a, bool)
281 PERLVAR(I, minus_F, bool)
282 PERLVAR(I, doswitches, bool)
283 PERLVAR(I, minus_E, bool)
287 =for apidoc mn|bool|PL_dowarn
289 The C variable which corresponds to Perl's $^W warning variable.
294 PERLVAR(I, dowarn, U8)
295 PERLVAR(I, sawampersand, U8) /* must save all match strings */
296 PERLVAR(I, unsafe, bool)
297 PERLVAR(I, exit_flags, U8) /* was exit() unexpected, etc. */
299 PERLVAR(I, inplace, char *)
300 PERLVAR(I, e_script, SV *)
302 /* magical thingies */
303 PERLVAR(I, basetime, Time_t) /* $^T */
304 PERLVAR(I, formfeed, SV *) /* $^L */
307 PERLVARI(I, maxsysfd, I32, MAXSYSFD)
308 /* top fd to pass to subprocesses */
309 PERLVAR(I, statusvalue, I32) /* $? */
311 PERLVAR(I, statusvalue_vms, U32)
313 PERLVAR(I, statusvalue_posix, I32)
316 PERLVARI(I, sig_pending, int, 0) /* Number if highest signal pending */
317 PERLVAR(I, psig_pend, int *) /* per-signal "count" of pending */
319 /* shortcuts to various I/O objects */
320 PERLVAR(I, stdingv, GV *) /* *STDIN */
321 PERLVAR(I, stderrgv, GV *) /* *STDERR */
322 PERLVAR(I, defgv, GV *)
323 PERLVAR(I, argvgv, GV *) /* *ARGV */
324 PERLVAR(I, argvoutgv, GV *) /* *ARGVOUT */
325 PERLVAR(I, argvout_stack, AV *)
327 /* shortcuts to regexp stuff */
328 PERLVAR(I, replgv, GV *) /* *^R */
330 /* shortcuts to misc objects */
331 PERLVAR(I, errgv, GV *) /* *@ */
333 /* shortcuts to debugging objects */
334 PERLVAR(I, DBgv, GV *) /* *DB::DB */
335 PERLVAR(I, DBline, GV *) /* *DB::line */
338 =for apidoc mn|GV *|PL_DBsub
339 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
340 the SV which holds the name of the sub being debugged. This is the C
341 variable which corresponds to Perl's $DB::sub variable. See
344 =for apidoc mn|SV *|PL_DBsingle
345 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
346 boolean which indicates whether subs are being single-stepped.
347 Single-stepping is automatically turned on after every step. This is the C
348 variable which corresponds to Perl's $DB::single variable. See
351 =for apidoc mn|SV *|PL_DBtrace
352 Trace variable used when Perl is run in debugging mode, with the B<-d>
353 switch. This is the C variable which corresponds to Perl's $DB::trace
354 variable. See C<PL_DBsingle>.
359 PERLVAR(I, DBsub, GV *) /* *DB::sub */
360 PERLVAR(I, DBsingle, SV *) /* $DB::single */
361 PERLVAR(I, DBtrace, SV *) /* $DB::trace */
362 PERLVAR(I, DBsignal, SV *) /* $DB::signal */
363 PERLVAR(I, dbargs, AV *) /* args to call listed by caller function */
366 PERLVAR(I, debstash, HV *) /* symbol table for perldb package */
367 PERLVAR(I, globalstash, HV *) /* global keyword overrides imported here */
368 PERLVAR(I, curstname, SV *) /* name of current package */
369 PERLVAR(I, beginav, AV *) /* names of BEGIN subroutines */
370 PERLVAR(I, endav, AV *) /* names of END subroutines */
371 PERLVAR(I, unitcheckav, AV *) /* names of UNITCHECK subroutines */
372 PERLVAR(I, checkav, AV *) /* names of CHECK subroutines */
373 PERLVAR(I, initav, AV *) /* names of INIT subroutines */
374 PERLVAR(I, strtab, HV *) /* shared string table */
375 PERLVARI(I, sub_generation, U32, 1) /* incr to invalidate method cache */
377 /* funky return mechanisms */
378 PERLVAR(I, forkprocess, int) /* so do_open |- can return proc# */
380 /* memory management */
381 PERLVAR(I, sv_count, I32) /* how many SV* are currently allocated */
382 PERLVAR(I, sv_objcount, I32) /* how many objects are currently allocated */
383 PERLVAR(I, sv_root, SV *) /* storage for SVs belonging to interp */
384 PERLVAR(I, sv_arenaroot, SV *) /* list of areas for garbage collection */
386 /* subprocess state */
387 PERLVAR(I, fdpid, AV *) /* keep fd-to-pid mappings for my_popen */
390 PERLVARI(I, op_mask, char *, NULL) /* masked operations for safe evals */
392 /* current interpreter roots */
393 PERLVAR(I, main_cv, CV *)
394 PERLVAR(I, main_root, OP *)
395 PERLVAR(I, main_start, OP *)
396 PERLVAR(I, eval_root, OP *)
397 PERLVAR(I, eval_start, OP *)
399 /* runtime control stuff */
400 PERLVARI(I, curcopdb, COP *, NULL)
402 PERLVAR(I, filemode, int) /* so nextargv() can preserve mode */
403 PERLVAR(I, lastfd, int) /* what to preserve mode on */
404 PERLVAR(I, oldname, char *) /* what to preserve mode on */
405 PERLVAR(I, Argv, const char **) /* stuff to free from do_aexec, vfork safe */
406 PERLVAR(I, Cmd, char *) /* stuff to free from do_aexec, vfork safe */
407 /* Elements in this array have ';' appended and are injected as a single line
408 into the tokeniser. You can't put any (literal) newlines into any program
409 you stuff in into this array, as the point where it's injected is expecting
410 a single physical line. */
411 PERLVAR(I, preambleav, AV *)
412 PERLVAR(I, mess_sv, SV *)
413 PERLVAR(I, ors_sv, SV *) /* output record separator $\ */
414 /* statics moved here for shared library purposes */
415 PERLVARI(I, gensym, I32, 0) /* next symbol for getsym() to define */
416 PERLVARI(I, cv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
417 PERLVAR(I, taint_warn, bool) /* taint warns instead of dying */
418 PERLVARI(I, laststype, U16, OP_STAT)
419 PERLVARI(I, laststatval, int, -1)
421 /* interpreter atexit processing */
422 PERLVARI(I, exitlistlen, I32, 0) /* length of same */
423 PERLVARI(I, exitlist, PerlExitListEntry *, NULL)
424 /* list of exit functions */
427 =for apidoc Amn|HV*|PL_modglobal
429 C<PL_modglobal> is a general purpose, interpreter global HV for use by
430 extensions that need to keep information on a per-interpreter basis.
431 In a pinch, it can also be used as a symbol table for extensions
432 to share data among each other. It is a good idea to use keys
433 prefixed by the package name of the extension that owns the data.
438 PERLVAR(I, modglobal, HV *) /* per-interp module data */
440 /* these used to be in global before 5.004_68 */
441 PERLVARI(I, profiledata, U32 *, NULL) /* table of ops, counts */
443 PERLVAR(I, compiling, COP) /* compiling/done executing marker */
445 PERLVAR(I, compcv, CV *) /* currently compiling subroutine */
446 PERLVAR(I, comppad, PAD *) /* storage for lexically scoped temporaries */
447 PERLVAR(I, comppad_name, PADNAMELIST *) /* variable names for "my" variables */
448 PERLVAR(I, comppad_name_fill, I32) /* last "introduced" variable offset */
449 PERLVAR(I, comppad_name_floor, I32) /* start of vars in innermost block */
451 #ifdef HAVE_INTERP_INTERN
452 PERLVAR(I, sys_intern, struct interp_intern)
453 /* platform internals */
456 /* more statics moved here */
457 PERLVAR(I, DBcv, CV *) /* from perl.c */
458 PERLVARI(I, generation, int, 100) /* from op.c */
460 PERLVARI(I, in_clean_objs,bool, FALSE) /* from sv.c */
461 PERLVARI(I, in_clean_all, bool, FALSE) /* ptrs to freed SVs now legal */
462 PERLVAR(I, nomemok, bool) /* let malloc context handle nomem */
463 PERLVARI(I, savebegin, bool, FALSE) /* save BEGINs for compiler */
465 PERLVAR(I, delaymagic_uid, Uid_t) /* current real user id, only for delaymagic */
466 PERLVAR(I, delaymagic_euid, Uid_t) /* current effective user id, only for delaymagic */
467 PERLVAR(I, delaymagic_gid, Gid_t) /* current real group id, only for delaymagic */
468 PERLVAR(I, delaymagic_egid, Gid_t) /* current effective group id, only for delaymagic */
469 PERLVARI(I, an, U32, 0) /* malloc sequence number */
472 /* exercise wrap-around */
473 #define PERL_COP_SEQMAX (U32_MAX-50)
475 #define PERL_COP_SEQMAX 0
477 PERLVARI(I, cop_seqmax, U32, PERL_COP_SEQMAX) /* statement sequence number */
478 #undef PERL_COP_SEQMAX
480 PERLVARI(I, evalseq, U32, 0) /* eval sequence number */
481 PERLVAR(I, origalen, U32)
482 PERLVAR(I, origenviron, char **)
483 #ifdef PERL_USES_PL_PIDSTATUS
484 PERLVAR(I, pidstatus, HV *) /* pid-to-status mappings for waitpid */
486 PERLVAR(I, osname, char *) /* operating system */
488 PERLVAR(I, sighandlerp, Sighandler_t)
490 PERLVARA(I, body_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
492 PERLVAR(I, unicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
494 PERLVARI(I, maxo, int, MAXO) /* maximum number of ops */
496 PERLVARI(I, runops, runops_proc_t, RUNOPS_DEFAULT)
499 =for apidoc Amn|SV|PL_sv_undef
500 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
502 =for apidoc Amn|SV|PL_sv_no
503 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
506 =for apidoc Amn|SV|PL_sv_yes
507 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
513 PERLVAR(I, sv_undef, SV)
514 PERLVAR(I, sv_no, SV)
515 PERLVAR(I, sv_yes, SV)
517 PERLVAR(I, subname, SV *) /* name of current subroutine */
519 PERLVAR(I, subline, I32) /* line this subroutine began on */
520 PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */
522 PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */
523 PERLVAR(I, padix, I32) /* max used index in current "register" pad */
525 PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */
527 PERLVAR(I, hints, U32) /* pragma-tic compile-time flags */
529 PERLVAR(I, debug, VOL U32) /* flags given to -D switch */
531 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
532 PERLVARI(I, breakable_sub_gen, U32, 0)
534 #ifdef USE_LOCALE_COLLATE
535 PERLVAR(I, collation_name, char *) /* Name of current collation */
536 PERLVAR(I, collxfrm_base, Size_t) /* Basic overhead in *xfrm() */
537 PERLVARI(I, collxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
538 PERLVARI(I, collation_ix, U32, 0) /* Collation generation index */
539 PERLVARI(I, collation_standard, bool, TRUE)
540 /* Assume simple collation */
541 #endif /* USE_LOCALE_COLLATE */
544 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
549 PERLVARI(I, utf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
553 #ifdef USE_LOCALE_NUMERIC
555 PERLVARI(I, numeric_standard, bool, TRUE)
556 /* Assume simple numerics */
557 PERLVARI(I, numeric_local, bool, TRUE)
558 /* Assume local numerics */
559 PERLVAR(I, numeric_name, char *) /* Name of current numeric locale */
560 PERLVAR(I, numeric_radix_sv, SV *) /* The radix separator if not '.' */
562 #endif /* !USE_LOCALE_NUMERIC */
564 /* Unicode inversion lists */
565 PERLVAR(I, ASCII, SV *)
566 PERLVAR(I, Latin1, SV *)
567 PERLVAR(I, AboveLatin1, SV *)
569 PERLVAR(I, PerlSpace, SV *)
570 PERLVAR(I, XPerlSpace, SV *)
572 PERLVAR(I, L1PosixAlnum,SV *)
573 PERLVAR(I, PosixAlnum, SV *)
575 PERLVAR(I, L1PosixAlpha,SV *)
576 PERLVAR(I, PosixAlpha, SV *)
578 PERLVAR(I, PosixBlank, SV *)
579 PERLVAR(I, XPosixBlank, SV *)
581 PERLVAR(I, L1Cased, SV *)
583 PERLVAR(I, PosixCntrl, SV *)
584 PERLVAR(I, XPosixCntrl, SV *)
586 PERLVAR(I, PosixDigit, SV *)
588 PERLVAR(I, L1PosixGraph,SV *)
589 PERLVAR(I, PosixGraph, SV *)
591 PERLVAR(I, L1PosixLower,SV *)
592 PERLVAR(I, PosixLower, SV *)
594 PERLVAR(I, L1PosixPrint,SV *)
595 PERLVAR(I, PosixPrint, SV *)
597 PERLVAR(I, L1PosixPunct,SV *)
598 PERLVAR(I, PosixPunct, SV *)
600 PERLVAR(I, PosixSpace, SV *)
601 PERLVAR(I, XPosixSpace, SV *)
603 PERLVAR(I, L1PosixUpper,SV *)
604 PERLVAR(I, PosixUpper, SV *)
606 PERLVAR(I, L1PosixWord, SV *)
607 PERLVAR(I, PosixWord, SV *)
609 PERLVAR(I, PosixXDigit, SV *)
610 PERLVAR(I, XPosixXDigit, SV *)
612 PERLVAR(I, VertSpace, SV *)
614 PERLVAR(I, NonL1NonFinalFold, SV *)
616 /* utf8 character class swashes */
617 PERLVAR(I, utf8_alnum, SV *)
618 PERLVAR(I, utf8_alpha, SV *)
619 PERLVAR(I, utf8_blank, SV *)
620 PERLVAR(I, utf8_space, SV *)
621 PERLVAR(I, utf8_graph, SV *)
622 PERLVAR(I, utf8_digit, SV *)
623 PERLVAR(I, utf8_upper, SV *)
624 PERLVAR(I, utf8_lower, SV *)
625 PERLVAR(I, utf8_print, SV *)
626 PERLVAR(I, utf8_punct, SV *)
627 PERLVAR(I, utf8_xdigit, SV *)
628 PERLVAR(I, utf8_mark, SV *)
629 PERLVAR(I, utf8_X_regular_begin, SV *)
630 PERLVAR(I, utf8_X_extend, SV *)
631 PERLVAR(I, utf8_X_LVT, SV *)
632 PERLVAR(I, utf8_toupper, SV *)
633 PERLVAR(I, utf8_totitle, SV *)
634 PERLVAR(I, utf8_tolower, SV *)
635 PERLVAR(I, utf8_tofold, SV *)
636 PERLVAR(I, utf8_quotemeta, SV *)
637 PERLVAR(I, last_swash_hv, HV *)
638 PERLVAR(I, last_swash_tmps, U8 *)
639 PERLVAR(I, last_swash_slen, STRLEN)
640 PERLVARA(I, last_swash_key,12, U8)
641 PERLVAR(I, last_swash_klen, U8) /* Only needs to store 0-12 */
644 PERLVARI(I, cryptseen, bool, FALSE) /* has fast crypt() been initialized? */
647 PERLVAR(I, pad_reset_pending, bool) /* reset pad on next attempted alloc */
648 PERLVAR(I, srand_called, bool)
649 PERLVARI(I, in_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */
651 PERLVAR(I, parser, yy_parser *) /* current parser state */
653 /* Array of signal handlers, indexed by signal number, through which the C
654 signal handler dispatches. */
655 PERLVAR(I, psig_ptr, SV **)
656 /* Array of names of signals, indexed by signal number, for (re)use as the first
657 argument to a signal handler. Only one block of memory is allocated for
658 both psig_name and psig_ptr. */
659 PERLVAR(I, psig_name, SV **)
661 #if defined(PERL_IMPLICIT_SYS)
662 PERLVAR(I, Mem, struct IPerlMem *)
663 PERLVAR(I, MemShared, struct IPerlMem *)
664 PERLVAR(I, MemParse, struct IPerlMem *)
665 PERLVAR(I, Env, struct IPerlEnv *)
666 PERLVAR(I, StdIO, struct IPerlStdIO *)
667 PERLVAR(I, LIO, struct IPerlLIO *)
668 PERLVAR(I, Dir, struct IPerlDir *)
669 PERLVAR(I, Sock, struct IPerlSock *)
670 PERLVAR(I, Proc, struct IPerlProc *)
673 PERLVAR(I, ptr_table, PTR_TBL_t *)
674 PERLVARI(I, beginav_save, AV *, NULL) /* save BEGIN{}s when compiling */
676 PERLVAR(I, body_arenas, void *) /* pointer to list of body-arenas */
679 #if defined(USE_ITHREADS)
680 PERLVAR(I, regex_pad, SV **) /* Shortcut into the array of
682 PERLVAR(I, regex_padav, AV *) /* All regex objects, indexed via the
683 values in op_pmoffset of pmop.
684 Entry 0 is an SV whose PV is a
685 "packed" list of IVs listing
686 the now-free slots in the array */
687 PERLVAR(I, stashpad, HV **) /* for CopSTASH */
688 PERLVARI(I, stashpadmax, PADOFFSET, 64)
689 PERLVARI(I, stashpadix, PADOFFSET, 0)
692 #ifdef USE_REENTRANT_API
693 PERLVAR(I, reentrant_buffer, REENTR *) /* here we store the _r buffers */
696 PERLVAR(I, custom_op_names, HV *) /* Names of user defined ops */
697 PERLVAR(I, custom_op_descs, HV *) /* Descriptions of user defined ops */
700 PERLVARI(I, perlio, PerlIOl *, NULL)
701 PERLVARI(I, known_layers, PerlIO_list_t *, NULL)
702 PERLVARI(I, def_layerlist, PerlIO_list_t *, NULL)
705 PERLVARI(I, encoding, SV *, NULL) /* character encoding */
707 PERLVAR(I, debug_pad, struct perl_debug_pad) /* always needed because of the re extension */
709 PERLVAR(I, utf8_idstart, SV *)
710 PERLVAR(I, utf8_idcont, SV *)
711 PERLVAR(I, utf8_xidstart, SV *)
712 PERLVAR(I, utf8_perl_idstart, SV *)
713 PERLVAR(I, utf8_xidcont, SV *)
715 PERLVAR(I, sort_RealCmp, SVCOMPARE_t)
717 PERLVARI(I, checkav_save, AV *, NULL) /* save CHECK{}s when compiling */
718 PERLVARI(I, unitcheckav_save, AV *, NULL)
719 /* save UNITCHECK{}s when compiling */
721 PERLVARI(I, clocktick, long, 0) /* this many times() ticks in a second */
723 PERLVAR(I, stashcache, HV *) /* Cache to speed up S_method_common */
725 /* Hooks to shared SVs and locks. */
726 PERLVARI(I, sharehook, share_proc_t, Perl_sv_nosharing)
727 PERLVARI(I, lockhook, share_proc_t, Perl_sv_nosharing)
729 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
731 /* This reference ensures that the mathoms are linked with perl */
732 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
734 PERLVARI(I, unlockhook, share_proc_t, PERL_UNLOCK_HOOK)
736 PERLVARI(I, threadhook, thrhook_proc_t, Perl_nothreadhook)
738 /* Can shared object be destroyed */
739 PERLVARI(I, destroyhook, destroyable_proc_t, Perl_sv_destroyable)
742 PERLVARI(I, signalhook, despatch_signals_proc_t, Perl_despatch_signals)
745 PERLVARI(I, hash_seed, UV, 0) /* Hash initializer */
747 PERLVARI(I, rehash_seed, UV, 0) /* 582 hash initializer */
749 PERLVARI(I, isarev, HV *, NULL) /* Reverse map of @ISA dependencies */
751 /* Register of known Method Resolution Orders.
752 What this actually points to is an implementation detail (it may change to
753 a structure incorporating a reference count - use mro_get_from_name to
754 retrieve a C<struct mro_alg *> */
755 PERLVAR(I, registered_mros, HV *)
757 /* Compile-time block start/end hooks */
758 PERLVAR(I, blockhooks, AV *)
760 /* Everything that folds to a given character, for case insensitivity regex
762 PERLVARI(I, utf8_foldclosures, HV *, NULL)
764 /* List of characters that participate in folds (except marks, etc in
765 * multi-char folds) */
766 PERLVARI(I, utf8_foldable, SV *, NULL)
768 PERLVAR(I, custom_ops, HV *) /* custom op registrations */
770 /* Hook for File::Glob */
771 PERLVARI(I, globhook, globhook_t, NULL)
773 PERLVARI(I, glob_index, int, 0)
774 PERLVARI(I, padlist_generation, U32, 1) /* id to identify padlist clones */
775 PERLVAR(I, reentrant_retint, int) /* Integer return value from reentrant functions */
777 /* The last unconditional member of the interpreter structure when 5.10.0 was
778 released. The offset of the end of this is baked into a global variable in
779 any shared perl library which will allow a sanity test in future perl
781 #define PERL_LAST_5_16_0_INTERP_MEMBER Ireentrant_retint
783 #ifdef PERL_IMPLICIT_CONTEXT
784 PERLVARI(I, my_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
785 PERLVARI(I, my_cxt_size, int, 0) /* size of PL_my_cxt_list */
786 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
787 PERLVARI(I, my_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
791 #ifdef PERL_TRACK_MEMPOOL
792 /* For use with the memory debugging code in util.c */
793 PERLVAR(I, memory_debug_header, struct perl_memory_debug_header)
796 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
797 /* File descriptor to talk to the child which dumps scalars. */
798 PERLVARI(I, dumper_fd, int, -1)
802 PERLVARI(I, madskills, bool, FALSE) /* preserve all syntactic info */
803 /* (MAD = Misc Attribute Decoration) */
804 PERLVARI(I, xmlfp, PerlIO *, NULL)
807 #ifdef DEBUG_LEAKING_SCALARS
808 PERLVARI(I, sv_serial, U32, 0) /* SV serial number, used in sv.c */
811 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
812 * above on where there are gaps which currently will be structure padding. */
814 /* Within a stable branch, new variables must be added to the very end, before
815 * this comment, for binary compatibility (the offsets of the old members must
817 * (Don't forget to add your variable also to perl_clone()!)
818 * XSUB.h provides wrapper functions via perlapi.h that make this
819 * irrelevant, but not all code may be expected to #include XSUB.h.