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 PERLVAR(I, basetime, Time_t) /* $^T */
304 PERLVARI(I, maxsysfd, I32, MAXSYSFD)
305 /* top fd to pass to subprocesses */
306 PERLVAR(I, statusvalue, I32) /* $? */
308 PERLVAR(I, statusvalue_vms, U32)
310 PERLVAR(I, statusvalue_posix, I32)
313 PERLVARI(I, sig_pending, int, 0) /* Number if highest signal pending */
314 PERLVAR(I, psig_pend, int *) /* per-signal "count" of pending */
316 /* shortcuts to various I/O objects */
317 PERLVAR(I, stdingv, GV *) /* *STDIN */
318 PERLVAR(I, stderrgv, GV *) /* *STDERR */
319 PERLVAR(I, defgv, GV *)
320 PERLVAR(I, argvgv, GV *) /* *ARGV */
321 PERLVAR(I, argvoutgv, GV *) /* *ARGVOUT */
322 PERLVAR(I, argvout_stack, AV *)
324 /* shortcuts to regexp stuff */
325 PERLVAR(I, replgv, GV *) /* *^R */
327 /* shortcuts to misc objects */
328 PERLVAR(I, errgv, GV *) /* *@ */
330 /* shortcuts to debugging objects */
331 PERLVAR(I, DBgv, GV *) /* *DB::DB */
332 PERLVAR(I, DBline, GV *) /* *DB::line */
335 =for apidoc mn|GV *|PL_DBsub
336 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
337 the SV which holds the name of the sub being debugged. This is the C
338 variable which corresponds to Perl's $DB::sub variable. See
341 =for apidoc mn|SV *|PL_DBsingle
342 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
343 boolean which indicates whether subs are being single-stepped.
344 Single-stepping is automatically turned on after every step. This is the C
345 variable which corresponds to Perl's $DB::single variable. See
348 =for apidoc mn|SV *|PL_DBtrace
349 Trace variable used when Perl is run in debugging mode, with the B<-d>
350 switch. This is the C variable which corresponds to Perl's $DB::trace
351 variable. See C<PL_DBsingle>.
356 PERLVAR(I, DBsub, GV *) /* *DB::sub */
357 PERLVAR(I, DBsingle, SV *) /* $DB::single */
358 PERLVAR(I, DBtrace, SV *) /* $DB::trace */
359 PERLVAR(I, DBsignal, SV *) /* $DB::signal */
360 PERLVAR(I, dbargs, AV *) /* args to call listed by caller function */
363 PERLVAR(I, debstash, HV *) /* symbol table for perldb package */
364 PERLVAR(I, globalstash, HV *) /* global keyword overrides imported here */
365 PERLVAR(I, curstname, SV *) /* name of current package */
366 PERLVAR(I, beginav, AV *) /* names of BEGIN subroutines */
367 PERLVAR(I, endav, AV *) /* names of END subroutines */
368 PERLVAR(I, unitcheckav, AV *) /* names of UNITCHECK subroutines */
369 PERLVAR(I, checkav, AV *) /* names of CHECK subroutines */
370 PERLVAR(I, initav, AV *) /* names of INIT subroutines */
371 PERLVAR(I, strtab, HV *) /* shared string table */
372 PERLVARI(I, sub_generation, U32, 1) /* incr to invalidate method cache */
374 /* funky return mechanisms */
375 PERLVAR(I, forkprocess, int) /* so do_open |- can return proc# */
377 /* memory management */
378 PERLVAR(I, sv_count, I32) /* how many SV* are currently allocated */
379 PERLVAR(I, sv_objcount, I32) /* how many objects are currently allocated */
380 PERLVAR(I, sv_root, SV *) /* storage for SVs belonging to interp */
381 PERLVAR(I, sv_arenaroot, SV *) /* list of areas for garbage collection */
383 /* subprocess state */
384 PERLVAR(I, fdpid, AV *) /* keep fd-to-pid mappings for my_popen */
387 PERLVARI(I, op_mask, char *, NULL) /* masked operations for safe evals */
389 /* current interpreter roots */
390 PERLVAR(I, main_cv, CV *)
391 PERLVAR(I, main_root, OP *)
392 PERLVAR(I, main_start, OP *)
393 PERLVAR(I, eval_root, OP *)
394 PERLVAR(I, eval_start, OP *)
396 /* runtime control stuff */
397 PERLVARI(I, curcopdb, COP *, NULL)
399 PERLVAR(I, filemode, int) /* so nextargv() can preserve mode */
400 PERLVAR(I, lastfd, int) /* what to preserve mode on */
401 PERLVAR(I, oldname, char *) /* what to preserve mode on */
402 PERLVAR(I, Argv, const char **) /* stuff to free from do_aexec, vfork safe */
403 PERLVAR(I, Cmd, char *) /* stuff to free from do_aexec, vfork safe */
404 /* Elements in this array have ';' appended and are injected as a single line
405 into the tokeniser. You can't put any (literal) newlines into any program
406 you stuff in into this array, as the point where it's injected is expecting
407 a single physical line. */
408 PERLVAR(I, preambleav, AV *)
409 PERLVAR(I, mess_sv, SV *)
410 PERLVAR(I, ors_sv, SV *) /* output record separator $\ */
411 /* statics moved here for shared library purposes */
412 PERLVARI(I, gensym, I32, 0) /* next symbol for getsym() to define */
413 PERLVARI(I, cv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
414 PERLVAR(I, taint_warn, bool) /* taint warns instead of dying */
415 PERLVARI(I, laststype, U16, OP_STAT)
416 PERLVARI(I, laststatval, int, -1)
418 /* interpreter atexit processing */
419 PERLVARI(I, exitlistlen, I32, 0) /* length of same */
420 PERLVARI(I, exitlist, PerlExitListEntry *, NULL)
421 /* list of exit functions */
424 =for apidoc Amn|HV*|PL_modglobal
426 C<PL_modglobal> is a general purpose, interpreter global HV for use by
427 extensions that need to keep information on a per-interpreter basis.
428 In a pinch, it can also be used as a symbol table for extensions
429 to share data among each other. It is a good idea to use keys
430 prefixed by the package name of the extension that owns the data.
435 PERLVAR(I, modglobal, HV *) /* per-interp module data */
437 /* these used to be in global before 5.004_68 */
438 PERLVARI(I, profiledata, U32 *, NULL) /* table of ops, counts */
440 PERLVAR(I, compiling, COP) /* compiling/done executing marker */
442 PERLVAR(I, compcv, CV *) /* currently compiling subroutine */
443 PERLVAR(I, comppad, PAD *) /* storage for lexically scoped temporaries */
444 PERLVAR(I, comppad_name, PADNAMELIST *) /* variable names for "my" variables */
445 PERLVAR(I, comppad_name_fill, I32) /* last "introduced" variable offset */
446 PERLVAR(I, comppad_name_floor, I32) /* start of vars in innermost block */
448 #ifdef HAVE_INTERP_INTERN
449 PERLVAR(I, sys_intern, struct interp_intern)
450 /* platform internals */
453 /* more statics moved here */
454 PERLVAR(I, DBcv, CV *) /* from perl.c */
455 PERLVARI(I, generation, int, 100) /* from op.c */
457 PERLVARI(I, in_clean_objs,bool, FALSE) /* from sv.c */
458 PERLVARI(I, in_clean_all, bool, FALSE) /* ptrs to freed SVs now legal */
459 PERLVAR(I, nomemok, bool) /* let malloc context handle nomem */
460 PERLVARI(I, savebegin, bool, FALSE) /* save BEGINs for compiler */
462 PERLVAR(I, delaymagic_uid, Uid_t) /* current real user id, only for delaymagic */
463 PERLVAR(I, delaymagic_euid, Uid_t) /* current effective user id, only for delaymagic */
464 PERLVAR(I, delaymagic_gid, Gid_t) /* current real group id, only for delaymagic */
465 PERLVAR(I, delaymagic_egid, Gid_t) /* current effective group id, only for delaymagic */
466 PERLVARI(I, an, U32, 0) /* malloc sequence number */
469 /* exercise wrap-around */
470 #define PERL_COP_SEQMAX (U32_MAX-50)
472 #define PERL_COP_SEQMAX 0
474 PERLVARI(I, cop_seqmax, U32, PERL_COP_SEQMAX) /* statement sequence number */
475 #undef PERL_COP_SEQMAX
477 PERLVARI(I, evalseq, U32, 0) /* eval sequence number */
478 PERLVAR(I, origalen, U32)
479 PERLVAR(I, origenviron, char **)
480 #ifdef PERL_USES_PL_PIDSTATUS
481 PERLVAR(I, pidstatus, HV *) /* pid-to-status mappings for waitpid */
483 PERLVAR(I, osname, char *) /* operating system */
485 PERLVAR(I, sighandlerp, Sighandler_t)
487 PERLVARA(I, body_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
489 PERLVAR(I, unicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
491 PERLVARI(I, maxo, int, MAXO) /* maximum number of ops */
493 PERLVARI(I, runops, runops_proc_t, RUNOPS_DEFAULT)
496 =for apidoc Amn|SV|PL_sv_undef
497 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
499 =for apidoc Amn|SV|PL_sv_no
500 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
503 =for apidoc Amn|SV|PL_sv_yes
504 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
510 PERLVAR(I, sv_undef, SV)
511 PERLVAR(I, sv_no, SV)
512 PERLVAR(I, sv_yes, SV)
514 PERLVAR(I, subname, SV *) /* name of current subroutine */
516 PERLVAR(I, subline, I32) /* line this subroutine began on */
517 PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */
519 PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */
520 PERLVAR(I, padix, I32) /* max used index in current "register" pad */
522 PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */
524 PERLVAR(I, hints, U32) /* pragma-tic compile-time flags */
526 PERLVAR(I, debug, VOL U32) /* flags given to -D switch */
528 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
529 PERLVARI(I, breakable_sub_gen, U32, 0)
531 #ifdef USE_LOCALE_COLLATE
532 PERLVAR(I, collation_name, char *) /* Name of current collation */
533 PERLVAR(I, collxfrm_base, Size_t) /* Basic overhead in *xfrm() */
534 PERLVARI(I, collxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
535 PERLVARI(I, collation_ix, U32, 0) /* Collation generation index */
536 PERLVARI(I, collation_standard, bool, TRUE)
537 /* Assume simple collation */
538 #endif /* USE_LOCALE_COLLATE */
541 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
546 PERLVARI(I, utf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
550 #ifdef USE_LOCALE_NUMERIC
552 PERLVARI(I, numeric_standard, bool, TRUE)
553 /* Assume simple numerics */
554 PERLVARI(I, numeric_local, bool, TRUE)
555 /* Assume local numerics */
556 PERLVAR(I, numeric_name, char *) /* Name of current numeric locale */
557 PERLVAR(I, numeric_radix_sv, SV *) /* The radix separator if not '.' */
559 #endif /* !USE_LOCALE_NUMERIC */
561 /* Unicode inversion lists */
562 PERLVAR(I, ASCII, SV *)
563 PERLVAR(I, Latin1, SV *)
564 PERLVAR(I, AboveLatin1, SV *)
566 PERLVAR(I, PerlSpace, SV *)
567 PERLVAR(I, XPerlSpace, SV *)
569 PERLVAR(I, L1PosixAlnum,SV *)
570 PERLVAR(I, PosixAlnum, SV *)
572 PERLVAR(I, L1PosixAlpha,SV *)
573 PERLVAR(I, PosixAlpha, SV *)
575 PERLVAR(I, PosixBlank, SV *)
576 PERLVAR(I, XPosixBlank, SV *)
578 PERLVAR(I, L1Cased, SV *)
580 PERLVAR(I, PosixCntrl, SV *)
581 PERLVAR(I, XPosixCntrl, SV *)
583 PERLVAR(I, PosixDigit, SV *)
585 PERLVAR(I, L1PosixGraph,SV *)
586 PERLVAR(I, PosixGraph, SV *)
588 PERLVAR(I, L1PosixLower,SV *)
589 PERLVAR(I, PosixLower, SV *)
591 PERLVAR(I, L1PosixPrint,SV *)
592 PERLVAR(I, PosixPrint, SV *)
594 PERLVAR(I, L1PosixPunct,SV *)
595 PERLVAR(I, PosixPunct, SV *)
597 PERLVAR(I, PosixSpace, SV *)
598 PERLVAR(I, XPosixSpace, SV *)
600 PERLVAR(I, L1PosixUpper,SV *)
601 PERLVAR(I, PosixUpper, SV *)
603 PERLVAR(I, L1PosixWord, SV *)
604 PERLVAR(I, PosixWord, SV *)
606 PERLVAR(I, PosixXDigit, SV *)
607 PERLVAR(I, XPosixXDigit, SV *)
609 PERLVAR(I, VertSpace, SV *)
611 PERLVAR(I, NonL1NonFinalFold, SV *)
612 PERLVAR(I, HasMultiCharFold, SV *)
614 /* utf8 character class swashes */
615 PERLVAR(I, utf8_alnum, SV *)
616 PERLVAR(I, utf8_alpha, SV *)
617 PERLVAR(I, utf8_blank, SV *)
618 PERLVAR(I, utf8_space, SV *)
619 PERLVAR(I, utf8_graph, SV *)
620 PERLVAR(I, utf8_digit, SV *)
621 PERLVAR(I, utf8_upper, SV *)
622 PERLVAR(I, utf8_lower, SV *)
623 PERLVAR(I, utf8_print, SV *)
624 PERLVAR(I, utf8_punct, SV *)
625 PERLVAR(I, utf8_xdigit, SV *)
626 PERLVAR(I, utf8_mark, SV *)
627 PERLVAR(I, utf8_X_regular_begin, SV *)
628 PERLVAR(I, utf8_X_extend, SV *)
629 PERLVAR(I, utf8_X_LVT, SV *)
630 PERLVAR(I, utf8_toupper, SV *)
631 PERLVAR(I, utf8_totitle, SV *)
632 PERLVAR(I, utf8_tolower, SV *)
633 PERLVAR(I, utf8_tofold, SV *)
634 PERLVAR(I, utf8_charname_begin, SV *)
635 PERLVAR(I, utf8_charname_continue, SV *)
636 PERLVAR(I, last_swash_hv, HV *)
637 PERLVAR(I, last_swash_tmps, U8 *)
638 PERLVAR(I, last_swash_slen, STRLEN)
639 PERLVARA(I, last_swash_key,12, U8)
640 PERLVAR(I, last_swash_klen, U8) /* Only needs to store 0-12 */
643 PERLVARI(I, cryptseen, bool, FALSE) /* has fast crypt() been initialized? */
646 PERLVAR(I, pad_reset_pending, bool) /* reset pad on next attempted alloc */
647 PERLVAR(I, srand_called, bool)
648 PERLVARI(I, in_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */
650 PERLVAR(I, parser, yy_parser *) /* current parser state */
652 /* Array of signal handlers, indexed by signal number, through which the C
653 signal handler dispatches. */
654 PERLVAR(I, psig_ptr, SV **)
655 /* Array of names of signals, indexed by signal number, for (re)use as the first
656 argument to a signal handler. Only one block of memory is allocated for
657 both psig_name and psig_ptr. */
658 PERLVAR(I, psig_name, SV **)
660 #if defined(PERL_IMPLICIT_SYS)
661 PERLVAR(I, Mem, struct IPerlMem *)
662 PERLVAR(I, MemShared, struct IPerlMem *)
663 PERLVAR(I, MemParse, struct IPerlMem *)
664 PERLVAR(I, Env, struct IPerlEnv *)
665 PERLVAR(I, StdIO, struct IPerlStdIO *)
666 PERLVAR(I, LIO, struct IPerlLIO *)
667 PERLVAR(I, Dir, struct IPerlDir *)
668 PERLVAR(I, Sock, struct IPerlSock *)
669 PERLVAR(I, Proc, struct IPerlProc *)
672 PERLVAR(I, ptr_table, PTR_TBL_t *)
673 PERLVARI(I, beginav_save, AV *, NULL) /* save BEGIN{}s when compiling */
675 PERLVAR(I, body_arenas, void *) /* pointer to list of body-arenas */
678 #if defined(USE_ITHREADS)
679 PERLVAR(I, regex_pad, SV **) /* Shortcut into the array of
681 PERLVAR(I, regex_padav, AV *) /* All regex objects, indexed via the
682 values in op_pmoffset of pmop.
683 Entry 0 is an SV whose PV is a
684 "packed" list of IVs listing
685 the now-free slots in the array */
686 PERLVAR(I, stashpad, HV **) /* for CopSTASH */
687 PERLVARI(I, stashpadmax, PADOFFSET, 64)
688 PERLVARI(I, stashpadix, PADOFFSET, 0)
691 #ifdef USE_REENTRANT_API
692 PERLVAR(I, reentrant_buffer, REENTR *) /* here we store the _r buffers */
695 PERLVAR(I, custom_op_names, HV *) /* Names of user defined ops */
696 PERLVAR(I, custom_op_descs, HV *) /* Descriptions of user defined ops */
699 PERLVARI(I, perlio, PerlIOl *, NULL)
700 PERLVARI(I, known_layers, PerlIO_list_t *, NULL)
701 PERLVARI(I, def_layerlist, PerlIO_list_t *, NULL)
704 PERLVARI(I, encoding, SV *, NULL) /* character encoding */
706 PERLVAR(I, debug_pad, struct perl_debug_pad) /* always needed because of the re extension */
708 PERLVAR(I, utf8_idstart, SV *)
709 PERLVAR(I, utf8_idcont, SV *)
710 PERLVAR(I, utf8_xidstart, SV *)
711 PERLVAR(I, utf8_perl_idstart, SV *)
712 PERLVAR(I, utf8_xidcont, SV *)
714 PERLVAR(I, sort_RealCmp, SVCOMPARE_t)
716 PERLVARI(I, checkav_save, AV *, NULL) /* save CHECK{}s when compiling */
717 PERLVARI(I, unitcheckav_save, AV *, NULL)
718 /* save UNITCHECK{}s when compiling */
720 PERLVARI(I, clocktick, long, 0) /* this many times() ticks in a second */
722 PERLVAR(I, stashcache, HV *) /* Cache to speed up S_method_common */
724 /* Hooks to shared SVs and locks. */
725 PERLVARI(I, sharehook, share_proc_t, Perl_sv_nosharing)
726 PERLVARI(I, lockhook, share_proc_t, Perl_sv_nosharing)
728 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
730 /* This reference ensures that the mathoms are linked with perl */
731 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
733 PERLVARI(I, unlockhook, share_proc_t, PERL_UNLOCK_HOOK)
735 PERLVARI(I, threadhook, thrhook_proc_t, Perl_nothreadhook)
737 /* Can shared object be destroyed */
738 PERLVARI(I, destroyhook, destroyable_proc_t, Perl_sv_destroyable)
741 PERLVARI(I, signalhook, despatch_signals_proc_t, Perl_despatch_signals)
744 PERLVARI(I, hash_seed, UV, 0) /* Hash initializer */
746 PERLVARI(I, rehash_seed, UV, 0) /* 582 hash initializer */
748 PERLVARI(I, isarev, HV *, NULL) /* Reverse map of @ISA dependencies */
750 /* Register of known Method Resolution Orders.
751 What this actually points to is an implementation detail (it may change to
752 a structure incorporating a reference count - use mro_get_from_name to
753 retrieve a C<struct mro_alg *> */
754 PERLVAR(I, registered_mros, HV *)
756 /* Compile-time block start/end hooks */
757 PERLVAR(I, blockhooks, AV *)
759 /* Everything that folds to a given character, for case insensitivity regex
761 PERLVARI(I, utf8_foldclosures, HV *, NULL)
763 /* List of characters that participate in folds (except marks, etc in
764 * multi-char folds) */
765 PERLVARI(I, utf8_foldable, SV *, NULL)
767 PERLVAR(I, custom_ops, HV *) /* custom op registrations */
769 /* Hook for File::Glob */
770 PERLVARI(I, globhook, globhook_t, NULL)
772 PERLVARI(I, glob_index, int, 0)
773 PERLVAR(I, reentrant_retint, int) /* Integer return value from reentrant functions */
775 /* The last unconditional member of the interpreter structure when 5.10.0 was
776 released. The offset of the end of this is baked into a global variable in
777 any shared perl library which will allow a sanity test in future perl
779 #define PERL_LAST_5_16_0_INTERP_MEMBER Ireentrant_retint
781 #ifdef PERL_IMPLICIT_CONTEXT
782 PERLVARI(I, my_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
783 PERLVARI(I, my_cxt_size, int, 0) /* size of PL_my_cxt_list */
784 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
785 PERLVARI(I, my_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
789 #ifdef PERL_TRACK_MEMPOOL
790 /* For use with the memory debugging code in util.c */
791 PERLVAR(I, memory_debug_header, struct perl_memory_debug_header)
794 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
795 /* File descriptor to talk to the child which dumps scalars. */
796 PERLVARI(I, dumper_fd, int, -1)
800 PERLVARI(I, madskills, bool, FALSE) /* preserve all syntactic info */
801 /* (MAD = Misc Attribute Decoration) */
802 PERLVARI(I, xmlfp, PerlIO *, NULL)
805 #ifdef DEBUG_LEAKING_SCALARS
806 PERLVARI(I, sv_serial, U32, 0) /* SV serial number, used in sv.c */
809 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
810 * above on where there are gaps which currently will be structure padding. */
812 /* Within a stable branch, new variables must be added to the very end, before
813 * this comment, for binary compatibility (the offsets of the old members must
815 * (Don't forget to add your variable also to perl_clone()!)
816 * XSUB.h provides wrapper functions via perlapi.h that make this
817 * irrelevant, but not all code may be expected to #include XSUB.h.