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Fix broken fix for RT #127212
[perl5.git] / intrpvar.h
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1/* intrpvar.h
2 *
3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
1129b882 4 * 2006, 2007, 2008 by Larry Wall and others
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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
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11#include "handy.h"
12
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13/*
14=head1 Per-Interpreter Variables
15*/
49f531da 16
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17/* These variables are per-interpreter in threaded/multiplicity builds,
18 * global otherwise.
19
d7cb65f2 20 * Don't forget to re-run regen/embed.pl to propagate changes! */
cb68f92d 21
ab686ae8 22/* New variables must be added to the very end for binary compatibility. */
6537fe72 23
ba05a734 24/* Don't forget to add your variable also to perl_clone()! (in sv.c) */
02506efe 25
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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
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28 * to generate the appropriate export list for win32. If the variable
29 * needs to be initialized, use PERLVARI.
cb68f92d 30 *
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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
115ff745 35PERLVAR(I, stack_sp, SV **) /* top of the stack */
115ff745 36PERLVAR(I, op, OP *) /* currently executing op */
115ff745 37PERLVAR(I, curpad, SV **) /* active pad (lexicals+tmps) */
907b3e23 38
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39PERLVAR(I, stack_base, SV **)
40PERLVAR(I, stack_max, SV **)
907b3e23 41
115ff745 42PERLVAR(I, savestack, ANY *) /* items that need to be restored when
907b3e23 43 LEAVEing scopes we've ENTERed */
115ff745
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44PERLVAR(I, savestack_ix, I32)
45PERLVAR(I, savestack_max, I32)
46
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47PERLVAR(I, scopestack, I32 *) /* scopes we've ENTERed */
48PERLVAR(I, scopestack_ix, I32)
49PERLVAR(I, scopestack_max, I32)
50
115ff745 51PERLVAR(I, tmps_stack, SV **) /* mortals we've made */
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52PERLVARI(I, tmps_ix, SSize_t, -1)
53PERLVARI(I, tmps_floor, SSize_t, -1)
54PERLVAR(I, tmps_max, SSize_t)
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55
56PERLVARI(I, sub_generation, U32, 1) /* incr to invalidate method cache */
907b3e23 57
115ff745 58PERLVAR(I, markstack, I32 *) /* stack_sp locations we're
907b3e23 59 remembering */
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60PERLVAR(I, markstack_ptr, I32 *)
61PERLVAR(I, markstack_max, I32 *)
907b3e23 62
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63#ifdef PERL_HASH_RANDOMIZE_KEYS
64#ifdef USE_PERL_PERTURB_KEYS
65PERLVARI(I, hash_rand_bits_enabled, U8, 1) /* used to randomize hash stuff 0 == no-random, 1 == random, 2 == determinsitic */
66#endif
0e0ab621 67PERLVARI(I, hash_rand_bits, UV, 0) /* used to randomize hash stuff */
6a5b4183 68#endif
19bc2726 69PERLVAR(I, strtab, HV *) /* shared string table */
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70/* prog counter for the currently executing OP_MULTIDEREF Used to signal
71 * to S_find_uninit_var() where we are */
72PERLVAR(I, multideref_pc, UNOP_AUX_item *)
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73
74/* Fields used by magic variables such as $@, $/ and so on */
75PERLVAR(I, curpm, PMOP *) /* what to do \ interps in REs from */
76
77PERLVAR(I, tainting, bool) /* doing taint checks */
d48c660d 78PERLVARI(I, tainted, bool, FALSE) /* using variables controlled by $< */
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79
80/* PL_delaymagic is currently used for two purposes: to assure simultaneous
81 * updates in ($<,$>) = ..., and to assure atomic update in push/unshift
82 * @ISA, It works like this: a few places such as pp_push set the DM_DELAY
83 * flag; then various places such as av_store() skip mg_set(ary) if this
84 * flag is set, and various magic vtable methods set flags like
85 * DM_ARRAY_ISA if they've seen something of that ilk. Finally when
86 * control returns to pp_push or whatever, it sees if any of those flags
87 * have been set, and if so finally calls mg_set().
88 *
89 * NB: PL_delaymagic is automatically saved and restored by JUMPENV_PUSH
90 * / POP. This removes the need to do ENTER/SAVEI16(PL_delaymagic)/LEAVE
91 * in hot code like pp_push.
92 */
19bc2726 93PERLVAR(I, delaymagic, U16) /* ($<,$>) = ... */
a68090fe 94
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95PERLVAR(I, localizing, U8) /* are we processing a local() list? */
96PERLVAR(I, in_eval, U8) /* trap "fatal" errors? */
3f44dc81 97PERLVAR(I, defgv, GV *) /* the *_ glob */
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98/*
99
100=for apidoc mn|bool|PL_dowarn
101
796b6530 102The C variable which corresponds to Perl's C<$^W> warning variable.
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103
104=cut
105*/
106
107PERLVAR(I, dowarn, U8)
108
109#if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
110# define PERL___I -1
111#else
112# define PERL___I 1
113#endif
114PERLVARI(I, utf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
115#undef PERL___I
116
117
118/* Stashes */
119PERLVAR(I, defstash, HV *) /* main symbol table */
120PERLVAR(I, curstash, HV *) /* symbol table for current package */
121
122PERLVAR(I, curcop, COP *)
123PERLVAR(I, curstack, AV *) /* THE STACK */
124PERLVAR(I, curstackinfo, PERL_SI *) /* current stack + context */
125PERLVAR(I, mainstack, AV *) /* the stack when nothing funny is
126 happening */
127
128/* memory management */
129PERLVAR(I, sv_count, IV) /* how many SV* are currently allocated */
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130
131PERLVAR(I, sv_root, SV *) /* storage for SVs belonging to interp */
132PERLVAR(I, sv_arenaroot, SV *) /* list of areas for garbage collection */
133
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134/* fake PMOP that PL_curpm points to while in (?{}) so $1 et al are visible */
135PERLVARI(I, reg_curpm, PMOP*, NULL)
136
19bc2726 137/* the currently active slab in a chain of slabs of regmatch states,
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138 * and the currently active state within that slab. This stack of states
139 * is shared amongst re-entrant calls to the regex engine */
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140
141PERLVARI(I, regmatch_slab, regmatch_slab *, NULL)
142PERLVAR(I, regmatch_state, regmatch_state *)
143
144PERLVAR(I, comppad, PAD *) /* storage for lexically scoped temporaries */
145
146/*
147=for apidoc Amn|SV|PL_sv_undef
148This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
149
150=for apidoc Amn|SV|PL_sv_no
fbe13c60 151This is the C<false> SV. See C<L</PL_sv_yes>>. Always refer to this as
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152C<&PL_sv_no>.
153
154=for apidoc Amn|SV|PL_sv_yes
fbe13c60 155This is the C<true> SV. See C<L</PL_sv_no>>. Always refer to this as
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156C<&PL_sv_yes>.
157
158=cut
159*/
160
161PERLVAR(I, sv_undef, SV)
162PERLVAR(I, sv_no, SV)
163PERLVAR(I, sv_yes, SV)
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164PERLVAR(I, padname_undef, PADNAME)
165PERLVAR(I, padname_const, PADNAME)
115ff745 166PERLVAR(I, Sv, SV *) /* used to hold temporary values */
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167
168PERLVAR(I, parser, yy_parser *) /* current parser state */
169
170PERLVAR(I, stashcache, HV *) /* Cache to speed up S_method_common */
171
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172
173/*
174=for apidoc Amn|STRLEN|PL_na
175
176A convenience variable which is typically used with C<SvPV> when one
177doesn't care about the length of the string. It is usually more efficient
178to either declare a local variable and use that instead or to use the
179C<SvPV_nolen> macro.
180
181=cut
182*/
183
115ff745 184PERLVAR(I, na, STRLEN) /* for use in SvPV when length is
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185 Not Applicable */
186
187/* stat stuff */
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188PERLVAR(I, statbuf, Stat_t)
189PERLVAR(I, statcache, Stat_t) /* _ */
190PERLVAR(I, statgv, GV *)
191PERLVARI(I, statname, SV *, NULL)
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192
193#ifdef HAS_TIMES
436227c7 194/* Will be removed soon after v5.21.0. See RT #121351 */
115ff745 195PERLVAR(I, timesbuf, struct tms)
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196#endif
197
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198/*
199=for apidoc mn|SV*|PL_rs
200
201The input record separator - C<$/> in Perl space.
202
203=for apidoc mn|GV*|PL_last_in_gv
204
154e47c8 205The GV which was last used for a filehandle input operation. (C<< <FH> >>)
907b3e23 206
e23d9e2f 207=for apidoc mn|GV*|PL_ofsgv
907b3e23 208
e23d9e2f 209The glob containing the output field separator - C<*,> in Perl space.
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210
211=cut
212*/
213
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214PERLVAR(I, rs, SV *) /* input record separator $/ */
215PERLVAR(I, last_in_gv, GV *) /* GV used in last <FH> */
216PERLVAR(I, ofsgv, GV *) /* GV of output field separator *, */
217PERLVAR(I, defoutgv, GV *) /* default FH for output */
218PERLVARI(I, chopset, const char *, " \n-") /* $: */
219PERLVAR(I, formtarget, SV *)
220PERLVAR(I, bodytarget, SV *)
221PERLVAR(I, toptarget, SV *)
907b3e23 222
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223
224PERLVAR(I, restartop, OP *) /* propagating an error from croak? */
225PERLVAR(I, restartjmpenv, JMPENV *) /* target frame for longjmp in die */
907b3e23 226
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227PERLVAR(I, top_env, JMPENV *) /* ptr to current sigjmp environment */
228PERLVAR(I, start_env, JMPENV) /* empty startup sigjmp environment */
229PERLVARI(I, errors, SV *, NULL) /* outstanding queued errors */
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230
231/* statics "owned" by various functions */
115ff745 232PERLVAR(I, hv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
907b3e23 233
115ff745 234PERLVAR(I, lastgotoprobe, OP*) /* from pp_ctl.c */
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235
236/* sort stuff */
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237PERLVAR(I, sortcop, OP *) /* user defined sort routine */
238PERLVAR(I, sortstash, HV *) /* which is in some package or other */
239PERLVAR(I, firstgv, GV *) /* $a */
240PERLVAR(I, secondgv, GV *) /* $b */
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241
242/* float buffer */
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243PERLVAR(I, efloatbuf, char *)
244PERLVAR(I, efloatsize, STRLEN)
907b3e23 245
115ff745 246PERLVARI(I, dumpindent, U16, 4) /* number of blanks per dump
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247 indentation level */
248
e914d9bb 249PERLVAR(I, exit_flags, U8) /* was exit() unexpected, etc. */
157b3822 250
115ff745 251PERLVAR(I, utf8locale, bool) /* utf8 locale detected */
31f05a37 252PERLVAR(I, in_utf8_CTYPE_locale, bool)
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253#ifdef USE_LOCALE_CTYPE
254 PERLVAR(I, warn_locale, SV *)
255#endif
907b3e23 256
87c1d905 257PERLVARA(I, colors,6, char *) /* values from PERL_RE_COLORS env var */
907b3e23 258
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259/*
260=for apidoc Amn|peep_t|PL_peepp
261
262Pointer to the per-subroutine peephole optimiser. This is a function
263that gets called at the end of compilation of a Perl subroutine (or
264equivalently independent piece of Perl code) to perform fixups of
265some ops and to perform small-scale optimisations. The function is
266called once for each subroutine that is compiled, and is passed, as sole
267parameter, a pointer to the op that is the entry point to the subroutine.
268It modifies the op tree in place.
269
270The peephole optimiser should never be completely replaced. Rather,
271add code to it by wrapping the existing optimiser. The basic way to do
272this can be seen in L<perlguts/Compile pass 3: peephole optimization>.
273If the new code wishes to operate on ops throughout the subroutine's
274structure, rather than just at the top level, it is likely to be more
275convenient to wrap the L</PL_rpeepp> hook.
276
277=cut
278*/
279
115ff745 280PERLVARI(I, peepp, peep_t, Perl_peep)
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281
282/*
283=for apidoc Amn|peep_t|PL_rpeepp
284
285Pointer to the recursive peephole optimiser. This is a function
286that gets called at the end of compilation of a Perl subroutine (or
287equivalently independent piece of Perl code) to perform fixups of some
288ops and to perform small-scale optimisations. The function is called
289once for each chain of ops linked through their C<op_next> fields;
290it is recursively called to handle each side chain. It is passed, as
291sole parameter, a pointer to the op that is at the head of the chain.
292It modifies the op tree in place.
293
294The peephole optimiser should never be completely replaced. Rather,
295add code to it by wrapping the existing optimiser. The basic way to do
296this can be seen in L<perlguts/Compile pass 3: peephole optimization>.
297If the new code wishes to operate only on ops at a subroutine's top level,
298rather than throughout the structure, it is likely to be more convenient
299to wrap the L</PL_peepp> hook.
300
301=cut
302*/
303
115ff745 304PERLVARI(I, rpeepp, peep_t, Perl_rpeep)
907b3e23 305
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306/*
307=for apidoc Amn|Perl_ophook_t|PL_opfreehook
308
309When 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.
310This allows extensions to free any extra attribute they have locally attached to an OP.
311It is also assured to first fire for the parent OP and then for its kids.
312
313When 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.
314
315=cut
316*/
317
115ff745 318PERLVARI(I, opfreehook, Perl_ophook_t, 0) /* op_free() hook */
f37b8c3f 319
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320PERLVARI(I, watchaddr, char **, 0)
321PERLVAR(I, watchok, char *)
907b3e23 322
115ff745 323PERLVAR(I, perldb, U32)
d95e864f 324
115ff745 325PERLVAR(I, signals, U32) /* Using which pre-5.8 signals */
30b0736d 326
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327PERLVAR(I, reentrant_retint, int) /* Integer return value from reentrant functions */
328
49f531da 329/* pseudo environmental stuff */
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330PERLVAR(I, origargc, int)
331PERLVAR(I, origargv, char **)
332PERLVAR(I, envgv, GV *)
333PERLVAR(I, incgv, GV *)
334PERLVAR(I, hintgv, GV *)
335PERLVAR(I, origfilename, char *)
9a189793 336PERLVARI(I, xsubfilename, const char *, NULL)
115ff745
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337PERLVAR(I, diehook, SV *)
338PERLVAR(I, warnhook, SV *)
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339
340/* switches */
115ff745 341PERLVAR(I, patchlevel, SV *)
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342PERLVAR(I, localpatches, const char * const *)
343PERLVARI(I, splitstr, const char *, " ")
344
345PERLVAR(I, minus_c, bool)
346PERLVAR(I, minus_n, bool)
347PERLVAR(I, minus_p, bool)
348PERLVAR(I, minus_l, bool)
349PERLVAR(I, minus_a, bool)
350PERLVAR(I, minus_F, bool)
351PERLVAR(I, doswitches, bool)
352PERLVAR(I, minus_E, bool)
954c1994 353
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354PERLVAR(I, inplace, char *)
355PERLVAR(I, e_script, SV *)
49f531da 356
115ff745 357PERLVAR(I, basetime, Time_t) /* $^T */
d4cce5f1 358
115ff745 359PERLVARI(I, maxsysfd, I32, MAXSYSFD)
cb68f92d 360 /* top fd to pass to subprocesses */
115ff745 361PERLVAR(I, statusvalue, I32) /* $? */
49f531da 362#ifdef VMS
115ff745 363PERLVAR(I, statusvalue_vms, U32)
e5218da5 364#else
115ff745 365PERLVAR(I, statusvalue_posix, I32)
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366#endif
367
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368PERLVARI(I, sig_pending, int, 0) /* Number if highest signal pending */
369PERLVAR(I, psig_pend, int *) /* per-signal "count" of pending */
157b3822 370
49f531da 371/* shortcuts to various I/O objects */
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372PERLVAR(I, stdingv, GV *) /* *STDIN */
373PERLVAR(I, stderrgv, GV *) /* *STDERR */
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374PERLVAR(I, argvgv, GV *) /* *ARGV */
375PERLVAR(I, argvoutgv, GV *) /* *ARGVOUT */
376PERLVAR(I, argvout_stack, AV *)
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377
378/* shortcuts to regexp stuff */
115ff745 379PERLVAR(I, replgv, GV *) /* *^R */
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380
381/* shortcuts to misc objects */
115ff745 382PERLVAR(I, errgv, GV *) /* *@ */
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383
384/* shortcuts to debugging objects */
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385PERLVAR(I, DBgv, GV *) /* *DB::DB */
386PERLVAR(I, DBline, GV *) /* *DB::line */
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387
388/*
2eb25c99 389=for apidoc mn|GV *|PL_DBsub
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390When Perl is run in debugging mode, with the B<-d> switch, this GV contains
391the SV which holds the name of the sub being debugged. This is the C
392variable which corresponds to Perl's $DB::sub variable. See
fbe13c60 393C<L</PL_DBsingle>>.
954c1994 394
2eb25c99 395=for apidoc mn|SV *|PL_DBsingle
954c1994 396When Perl is run in debugging mode, with the B<-d> switch, this SV is a
7889fe52 397boolean which indicates whether subs are being single-stepped.
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398Single-stepping is automatically turned on after every step. This is the C
399variable which corresponds to Perl's $DB::single variable. See
fbe13c60 400C<L</PL_DBsub>>.
954c1994 401
2eb25c99 402=for apidoc mn|SV *|PL_DBtrace
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403Trace variable used when Perl is run in debugging mode, with the B<-d>
404switch. This is the C variable which corresponds to Perl's $DB::trace
fbe13c60 405variable. See C<L</PL_DBsingle>>.
954c1994
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406
407=cut
408*/
409
115ff745
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410PERLVAR(I, DBsub, GV *) /* *DB::sub */
411PERLVAR(I, DBsingle, SV *) /* $DB::single */
412PERLVAR(I, DBtrace, SV *) /* $DB::trace */
413PERLVAR(I, DBsignal, SV *) /* $DB::signal */
414PERLVAR(I, dbargs, AV *) /* args to call listed by caller function */
49f531da 415
a6d69523
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416PERLVARA(I, DBcontrol, DBVARMG_COUNT, IV) /* IV versions of $DB::single, trace, signal */
417
49f531da 418/* symbol tables */
115ff745
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419PERLVAR(I, debstash, HV *) /* symbol table for perldb package */
420PERLVAR(I, globalstash, HV *) /* global keyword overrides imported here */
421PERLVAR(I, curstname, SV *) /* name of current package */
422PERLVAR(I, beginav, AV *) /* names of BEGIN subroutines */
423PERLVAR(I, endav, AV *) /* names of END subroutines */
424PERLVAR(I, unitcheckav, AV *) /* names of UNITCHECK subroutines */
425PERLVAR(I, checkav, AV *) /* names of CHECK subroutines */
426PERLVAR(I, initav, AV *) /* names of INIT subroutines */
49f531da 427
49f531da 428/* subprocess state */
115ff745 429PERLVAR(I, fdpid, AV *) /* keep fd-to-pid mappings for my_popen */
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NIS
430
431/* internal state */
115ff745 432PERLVARI(I, op_mask, char *, NULL) /* masked operations for safe evals */
49f531da 433
49f531da 434/* current interpreter roots */
115ff745
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435PERLVAR(I, main_cv, CV *)
436PERLVAR(I, main_root, OP *)
437PERLVAR(I, main_start, OP *)
438PERLVAR(I, eval_root, OP *)
439PERLVAR(I, eval_start, OP *)
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440
441/* runtime control stuff */
115ff745 442PERLVARI(I, curcopdb, COP *, NULL)
49f531da 443
115ff745
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444PERLVAR(I, filemode, int) /* so nextargv() can preserve mode */
445PERLVAR(I, lastfd, int) /* what to preserve mode on */
446PERLVAR(I, oldname, char *) /* what to preserve mode on */
447PERLVAR(I, Argv, const char **) /* stuff to free from do_aexec, vfork safe */
448PERLVAR(I, Cmd, char *) /* stuff to free from do_aexec, vfork safe */
00accf8d
NC
449/* Elements in this array have ';' appended and are injected as a single line
450 into the tokeniser. You can't put any (literal) newlines into any program
451 you stuff in into this array, as the point where it's injected is expecting
452 a single physical line. */
115ff745
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453PERLVAR(I, preambleav, AV *)
454PERLVAR(I, mess_sv, SV *)
455PERLVAR(I, ors_sv, SV *) /* output record separator $\ */
19bc2726 456
79968a97
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457/* funky return mechanisms */
458PERLVAR(I, forkprocess, int) /* so do_open |- can return proc# */
459
71eebe1e 460/* statics moved here for shared library purposes */
115ff745
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461PERLVARI(I, gensym, I32, 0) /* next symbol for getsym() to define */
462PERLVARI(I, cv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
463PERLVAR(I, taint_warn, bool) /* taint warns instead of dying */
464PERLVARI(I, laststype, U16, OP_STAT)
19bc2726 465
115ff745 466PERLVARI(I, laststatval, int, -1)
d4cce5f1 467
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468PERLVAR(I, modcount, I32) /* how much op_lvalue()ification in
469 assignment? */
470
4b556e6c 471/* interpreter atexit processing */
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472PERLVARI(I, exitlistlen, I32, 0) /* length of same */
473PERLVARI(I, exitlist, PerlExitListEntry *, NULL)
cb68f92d 474 /* list of exit functions */
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475
476/*
477=for apidoc Amn|HV*|PL_modglobal
478
7889fe52 479C<PL_modglobal> is a general purpose, interpreter global HV for use by
954c1994 480extensions that need to keep information on a per-interpreter basis.
7889fe52
NIS
481In a pinch, it can also be used as a symbol table for extensions
482to share data among each other. It is a good idea to use keys
954c1994
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483prefixed by the package name of the extension that owns the data.
484
485=cut
486*/
487
115ff745 488PERLVAR(I, modglobal, HV *) /* per-interp module data */
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489
490/* these used to be in global before 5.004_68 */
115ff745 491PERLVARI(I, profiledata, U32 *, NULL) /* table of ops, counts */
cb68f92d 492
115ff745 493PERLVAR(I, compiling, COP) /* compiling/done executing marker */
cb68f92d 494
115ff745 495PERLVAR(I, compcv, CV *) /* currently compiling subroutine */
36c300bb 496PERLVAR(I, comppad_name, PADNAMELIST *) /* variable names for "my" variables */
115ff745
NC
497PERLVAR(I, comppad_name_fill, I32) /* last "introduced" variable offset */
498PERLVAR(I, comppad_name_floor, I32) /* start of vars in innermost block */
4b556e6c
JD
499
500#ifdef HAVE_INTERP_INTERN
115ff745 501PERLVAR(I, sys_intern, struct interp_intern)
cb68f92d 502 /* platform internals */
4b556e6c
JD
503#endif
504
7fae4e64 505/* more statics moved here */
115ff745 506PERLVAR(I, DBcv, CV *) /* from perl.c */
75010704
DM
507PERLVARI(I, generation, int, 100) /* scan sequence# for OP_AASSIGN
508 compile-time common elem detection */
56953603 509
19bc2726
DM
510PERLVAR(I, unicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
511
115ff745
NC
512PERLVARI(I, in_clean_objs,bool, FALSE) /* from sv.c */
513PERLVARI(I, in_clean_all, bool, FALSE) /* ptrs to freed SVs now legal */
514PERLVAR(I, nomemok, bool) /* let malloc context handle nomem */
515PERLVARI(I, savebegin, bool, FALSE) /* save BEGINs for compiler */
7fae4e64 516
19bc2726 517
985213f2
AB
518PERLVAR(I, delaymagic_uid, Uid_t) /* current real user id, only for delaymagic */
519PERLVAR(I, delaymagic_euid, Uid_t) /* current effective user id, only for delaymagic */
520PERLVAR(I, delaymagic_gid, Gid_t) /* current real group id, only for delaymagic */
521PERLVAR(I, delaymagic_egid, Gid_t) /* current effective group id, only for delaymagic */
115ff745 522PERLVARI(I, an, U32, 0) /* malloc sequence number */
be2b6a89 523
79968a97
NC
524/* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
525PERLVARI(I, breakable_sub_gen, U32, 0)
526
be2b6a89
DM
527#ifdef DEBUGGING
528 /* exercise wrap-around */
529 #define PERL_COP_SEQMAX (U32_MAX-50)
530#else
531 #define PERL_COP_SEQMAX 0
532#endif
115ff745 533PERLVARI(I, cop_seqmax, U32, PERL_COP_SEQMAX) /* statement sequence number */
be2b6a89
DM
534#undef PERL_COP_SEQMAX
535
115ff745
NC
536PERLVARI(I, evalseq, U32, 0) /* eval sequence number */
537PERLVAR(I, origalen, U32)
538PERLVAR(I, origenviron, char **)
ca0c25f6 539#ifdef PERL_USES_PL_PIDSTATUS
115ff745 540PERLVAR(I, pidstatus, HV *) /* pid-to-status mappings for waitpid */
ca0c25f6 541#endif
115ff745 542PERLVAR(I, osname, char *) /* operating system */
5c728af0 543
115ff745 544PERLVAR(I, sighandlerp, Sighandler_t)
0672f40e 545
115ff745 546PERLVARA(I, body_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
93e68bfb 547
79968a97
NC
548PERLVAR(I, debug, VOL U32) /* flags given to -D switch */
549
115ff745 550PERLVARI(I, maxo, int, MAXO) /* maximum number of ops */
9f7da6d5 551
115ff745 552PERLVARI(I, runops, runops_proc_t, RUNOPS_DEFAULT)
0672f40e 553
115ff745 554PERLVAR(I, subname, SV *) /* name of current subroutine */
0672f40e 555
115ff745
NC
556PERLVAR(I, subline, I32) /* line this subroutine began on */
557PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */
d95e864f 558
115ff745 559PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */
8ce2f624
FC
560PERLVAR(I, padix, I32) /* lowest unused index - 1
561 in current "register" pad */
b54c5e14 562PERLVAR(I, constpadix, I32) /* lowest unused for constants */
d95e864f 563
115ff745 564PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */
0672f40e 565
0672f40e 566#ifdef USE_LOCALE_COLLATE
115ff745
NC
567PERLVAR(I, collation_name, char *) /* Name of current collation */
568PERLVAR(I, collxfrm_base, Size_t) /* Basic overhead in *xfrm() */
569PERLVARI(I, collxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
570PERLVARI(I, collation_ix, U32, 0) /* Collation generation index */
571PERLVARI(I, collation_standard, bool, TRUE)
9f7da6d5 572 /* Assume simple collation */
0672f40e
GS
573#endif /* USE_LOCALE_COLLATE */
574
19bc2726
DM
575#ifdef PERL_SAWAMPERSAND
576PERLVAR(I, sawampersand, U8) /* must save all match strings */
9f7da6d5 577#endif
95ca8690 578
19bc2726 579PERLVAR(I, unsafe, bool)
87c1d905 580PERLVAR(I, colorset, bool) /* PERL_RE_COLORS env var is in use */
19bc2726 581
79968a97
NC
582/* current phase the interpreter is in
583 for ordering this structure to remove holes, we're assuming that this is 4
584 bytes. */
585PERLVARI(I, phase, enum perl_phase, PERL_PHASE_CONSTRUCT)
586
587PERLVARI(I, in_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */
588
589/* This value may be set when embedding for full cleanup */
590/* 0=none, 1=full, 2=full with checks */
591/* mod_perl is special, and also assigns a meaning -1 */
592PERLVARI(I, perl_destruct_level, signed char, 0)
9f7da6d5 593
0672f40e
GS
594#ifdef USE_LOCALE_NUMERIC
595
7738054c 596PERLVARI(I, numeric_standard, int, TRUE)
0672f40e 597 /* Assume simple numerics */
115ff745 598PERLVARI(I, numeric_local, bool, TRUE)
0672f40e 599 /* Assume local numerics */
115ff745
NC
600PERLVAR(I, numeric_name, char *) /* Name of current numeric locale */
601PERLVAR(I, numeric_radix_sv, SV *) /* The radix separator if not '.' */
f8115845 602
0672f40e
GS
603#endif /* !USE_LOCALE_NUMERIC */
604
a3e1f3a6 605/* Unicode inversion lists */
a3e1f3a6 606PERLVAR(I, Latin1, SV *)
892d8259 607PERLVAR(I, UpperLatin1, SV *) /* Code points 128 - 255 */
a3e1f3a6 608PERLVAR(I, AboveLatin1, SV *)
e0a1ff7a 609PERLVAR(I, InBitmap, SV *)
a3e1f3a6 610
26faadbd 611PERLVAR(I, NonL1NonFinalFold, SV *)
9d53c457 612PERLVAR(I, HasMultiCharFold, SV *)
26faadbd 613
a3e1f3a6 614/* utf8 character class swashes */
115ff745 615PERLVAR(I, utf8_mark, SV *)
115ff745
NC
616PERLVAR(I, utf8_toupper, SV *)
617PERLVAR(I, utf8_totitle, SV *)
618PERLVAR(I, utf8_tolower, SV *)
619PERLVAR(I, utf8_tofold, SV *)
bde9e88d
KW
620PERLVAR(I, utf8_charname_begin, SV *)
621PERLVAR(I, utf8_charname_continue, SV *)
30f9bdb0 622
63c61c3f 623PERLVARA(I, utf8_swash_ptrs, POSIX_SWASH_COUNT, SV *)
30f9bdb0 624PERLVARA(I, Posix_ptrs, POSIX_CC_COUNT, SV *)
cac6e0ca 625PERLVARA(I, XPosix_ptrs, POSIX_CC_COUNT, SV *)
64935bc6 626PERLVAR(I, GCB_invlist, SV *)
06ae2722 627PERLVAR(I, SB_invlist, SV *)
ae3bb8ea 628PERLVAR(I, WB_invlist, SV *)
cac6e0ca 629
115ff745
NC
630PERLVAR(I, last_swash_hv, HV *)
631PERLVAR(I, last_swash_tmps, U8 *)
632PERLVAR(I, last_swash_slen, STRLEN)
6c2f1a55 633PERLVARA(I, last_swash_key,UTF8_MAXBYTES-1, U8)
45d91b83 634PERLVAR(I, last_swash_klen, U8) /* Only needs to store 0-12 */
d95e864f
NC
635
636#ifdef FCRYPT
115ff745 637PERLVARI(I, cryptseen, bool, FALSE) /* has fast crypt() been initialized? */
79968a97
NC
638#else
639/* One byte hole in the interpreter structure. */
d95e864f
NC
640#endif
641
115ff745 642PERLVAR(I, pad_reset_pending, bool) /* reset pad on next attempted alloc */
e6b4660c 643PERLVAR(I, srand_called, bool)
12fbd33b 644
c4a30c8c
NC
645/* Array of signal handlers, indexed by signal number, through which the C
646 signal handler dispatches. */
115ff745 647PERLVAR(I, psig_ptr, SV **)
c4a30c8c 648/* Array of names of signals, indexed by signal number, for (re)use as the first
d525a7b2
NC
649 argument to a signal handler. Only one block of memory is allocated for
650 both psig_name and psig_ptr. */
115ff745 651PERLVAR(I, psig_name, SV **)
1d7c1841 652
c5be433b 653#if defined(PERL_IMPLICIT_SYS)
115ff745
NC
654PERLVAR(I, Mem, struct IPerlMem *)
655PERLVAR(I, MemShared, struct IPerlMem *)
656PERLVAR(I, MemParse, struct IPerlMem *)
657PERLVAR(I, Env, struct IPerlEnv *)
658PERLVAR(I, StdIO, struct IPerlStdIO *)
659PERLVAR(I, LIO, struct IPerlLIO *)
660PERLVAR(I, Dir, struct IPerlDir *)
661PERLVAR(I, Sock, struct IPerlSock *)
662PERLVAR(I, Proc, struct IPerlProc *)
76e3520e 663#endif
1d7c1841 664
115ff745
NC
665PERLVAR(I, ptr_table, PTR_TBL_t *)
666PERLVARI(I, beginav_save, AV *, NULL) /* save BEGIN{}s when compiling */
f180df80 667
115ff745 668PERLVAR(I, body_arenas, void *) /* pointer to list of body-arenas */
93e68bfb 669
d95e864f 670
1fcf4c12 671#if defined(USE_ITHREADS)
115ff745 672PERLVAR(I, regex_pad, SV **) /* Shortcut into the array of
e6853197 673 regex_padav */
115ff745 674PERLVAR(I, regex_padav, AV *) /* All regex objects, indexed via the
e6853197 675 values in op_pmoffset of pmop.
402d2eb1
NC
676 Entry 0 is an SV whose PV is a
677 "packed" list of IVs listing
e6853197 678 the now-free slots in the array */
d4d03940
FC
679PERLVAR(I, stashpad, HV **) /* for CopSTASH */
680PERLVARI(I, stashpadmax, PADOFFSET, 64)
681PERLVARI(I, stashpadix, PADOFFSET, 0)
1fcf4c12
AB
682#endif
683
ea68fd67 684#ifdef USE_REENTRANT_API
115ff745 685PERLVAR(I, reentrant_buffer, REENTR *) /* here we store the _r buffers */
f5a82810
JH
686#endif
687
115ff745
NC
688PERLVAR(I, custom_op_names, HV *) /* Names of user defined ops */
689PERLVAR(I, custom_op_descs, HV *) /* Descriptions of user defined ops */
19e8ce8e 690
a1ea730d 691#ifdef PERLIO_LAYERS
115ff745
NC
692PERLVARI(I, perlio, PerlIOl *, NULL)
693PERLVARI(I, known_layers, PerlIO_list_t *, NULL)
694PERLVARI(I, def_layerlist, PerlIO_list_t *, NULL)
a1ea730d
NIS
695#endif
696
3e669301
KW
697PERLVARI(I, encoding, SV *, NULL) /* $^ENCODING */
698PERLVARI(I, lex_encoding, SV *, NULL) /* encoding pragma */
0a378802 699
115ff745
NC
700PERLVAR(I, utf8_idstart, SV *)
701PERLVAR(I, utf8_idcont, SV *)
702PERLVAR(I, utf8_xidstart, SV *)
b6912c02 703PERLVAR(I, utf8_perl_idstart, SV *)
eba68aa0 704PERLVAR(I, utf8_perl_idcont, SV *)
115ff745 705PERLVAR(I, utf8_xidcont, SV *)
82686b01 706
115ff745 707PERLVAR(I, sort_RealCmp, SVCOMPARE_t)
147f47de 708
115ff745
NC
709PERLVARI(I, checkav_save, AV *, NULL) /* save CHECK{}s when compiling */
710PERLVARI(I, unitcheckav_save, AV *, NULL)
711 /* save UNITCHECK{}s when compiling */
ece599bd 712
115ff745 713PERLVARI(I, clocktick, long, 0) /* this many times() ticks in a second */
5311654c 714
15a5279a 715/* Hooks to shared SVs and locks. */
115ff745
NC
716PERLVARI(I, sharehook, share_proc_t, Perl_sv_nosharing)
717PERLVARI(I, lockhook, share_proc_t, Perl_sv_nosharing)
d0647d4e
NC
718#ifdef NO_MATHOMS
719# define PERL_UNLOCK_HOOK Perl_sv_nosharing
720#else
721/* This reference ensures that the mathoms are linked with perl */
722# define PERL_UNLOCK_HOOK Perl_sv_nounlocking
723#endif
115ff745 724PERLVARI(I, unlockhook, share_proc_t, PERL_UNLOCK_HOOK)
d0647d4e 725
115ff745 726PERLVARI(I, threadhook, thrhook_proc_t, Perl_nothreadhook)
15a5279a 727
9e08d3a4 728/* Can shared object be destroyed */
115ff745 729PERLVARI(I, destroyhook, destroyable_proc_t, Perl_sv_destroyable)
9e08d3a4 730
01d65469 731#ifndef PERL_MICRO
115ff745 732PERLVARI(I, signalhook, despatch_signals_proc_t, Perl_despatch_signals)
01d65469 733#endif
92f022bb 734
115ff745 735PERLVARI(I, isarev, HV *, NULL) /* Reverse map of @ISA dependencies */
f16dd614 736
9e08d3a4
NC
737/* Register of known Method Resolution Orders.
738 What this actually points to is an implementation detail (it may change to
739 a structure incorporating a reference count - use mro_get_from_name to
740 retrieve a C<struct mro_alg *> */
115ff745 741PERLVAR(I, registered_mros, HV *)
9e08d3a4
NC
742
743/* Compile-time block start/end hooks */
115ff745 744PERLVAR(I, blockhooks, AV *)
9e08d3a4
NC
745
746/* Everything that folds to a given character, for case insensitivity regex
747 * matching */
115ff745 748PERLVARI(I, utf8_foldclosures, HV *, NULL)
9e08d3a4
NC
749
750/* List of characters that participate in folds (except marks, etc in
751 * multi-char folds) */
115ff745 752PERLVARI(I, utf8_foldable, SV *, NULL)
9e08d3a4 753
115ff745 754PERLVAR(I, custom_ops, HV *) /* custom op registrations */
9e08d3a4 755
19bc2726
DM
756PERLVAR(I, Xpv, XPV *) /* (unused) held temporary value */
757
758/* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be
759 present always, as -DDEBUGGING must be binary compatible with non. */
760PERLVARI(I, scopestack_name, const char * *, NULL)
761
762PERLVAR(I, debug_pad, struct perl_debug_pad) /* always needed because of the re extension */
763
d67594ff
FC
764/* Hook for File::Glob */
765PERLVARI(I, globhook, globhook_t, NULL)
766
b4db5868
FC
767PERLVARI(I, padlist_generation, U32, 1) /* id to identify padlist clones */
768
436227c7 769/* The last unconditional member of the interpreter structure when 5.18.0 was
ffee3ff6
NC
770 released. The offset of the end of this is baked into a global variable in
771 any shared perl library which will allow a sanity test in future perl
772 releases. */
d399cf59 773#define PERL_LAST_5_18_0_INTERP_MEMBER Iglobhook
ffee3ff6 774
f16dd614 775#ifdef PERL_IMPLICIT_CONTEXT
115ff745 776PERLVARI(I, my_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
817b0f24 777PERLVARI(I, my_cxt_size, int, 0) /* size of PL_my_cxt_list */
ba6d381e 778# ifdef PERL_GLOBAL_STRUCT_PRIVATE
115ff745 779PERLVARI(I, my_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
ba6d381e 780# endif
f16dd614
DM
781#endif
782
0419d978 783#if defined(PERL_IMPLICIT_CONTEXT) || defined(PERL_DEBUG_READONLY_COW)
5ca5a628 784/* For use with the memory debugging code in util.c. This is used only in
0419d978
AC
785 * DEBUGGING builds (as long as the relevant structure is defined), but
786 * defining it in non-debug builds too means that we retain binary
787 * compatibility between otherwise-compatible plain and debug builds. */
115ff745 788PERLVAR(I, memory_debug_header, struct perl_memory_debug_header)
0419d978 789#endif
7cb608b5 790
ba6d381e
NC
791#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
792/* File descriptor to talk to the child which dumps scalars. */
115ff745 793PERLVARI(I, dumper_fd, int, -1)
ba6d381e
NC
794#endif
795
ba6d381e 796
d7a2c63c 797#ifdef DEBUG_LEAKING_SCALARS
115ff745 798PERLVARI(I, sv_serial, U32, 0) /* SV serial number, used in sv.c */
d7a2c63c
MHM
799#endif
800
a38ab475
RZ
801PERLVARA(I, sv_consts, SV_CONSTS_COUNT, SV*) /* constant SVs with precomputed hash value */
802
75d476e2
SM
803#ifdef PERL_TRACE_OPS
804PERLVARA(I, op_exec_cnt, OP_max+2, UV) /* Counts of executed OPs of the given type.
805 If PERL_TRACE_OPS is enabled, we'll dump
806 a summary count of all ops executed in the
807 program at perl_destruct time. For
808 profiling/debugging only. Works only if
809 DEBUGGING is enabled, too. */
810#endif
811
3be8f094
TC
812PERLVAR(I, random_state, PL_RANDOM_STATE_TYPE)
813
157b3822
NC
814/* If you are adding a U8 or U16, check to see if there are 'Space' comments
815 * above on where there are gaps which currently will be structure padding. */
d95e864f
NC
816
817/* Within a stable branch, new variables must be added to the very end, before
818 * this comment, for binary compatibility (the offsets of the old members must
819 * not change).
b83cd129 820 * (Don't forget to add your variable also to perl_clone()!)
e3acbfda 821 * XSUB.h provides wrapper functions via perlapi.h that make this
b83cd129
JH
822 * irrelevant, but not all code may be expected to #include XSUB.h.
823 */