1 /***********************************************/
2 /* Global only to current interpreter instance */
3 /***********************************************/
5 /* Don't forget to re-run embed.pl to propagate changes! */
7 /* New variables must be added to the very end for binary compatibility.
8 * XSUB.h provides wrapper functions via perlapi.h that make this
9 * irrelevant, but not all code may be expected to #include XSUB.h. */
11 /* Don't forget to add your variable also to perl_clone()! */
13 /* The 'I' prefix is only needed for vars that need appropriate #defines
14 * generated when built with or without MULTIPLICITY. It is also used
15 * to generate the appropriate export list for win32.
17 * When building without MULTIPLICITY, these variables will be truly global. */
19 /* pseudo environmental stuff */
20 PERLVAR(Iorigargc, int)
21 PERLVAR(Iorigargv, char **)
24 PERLVAR(Ihintgv, GV *)
25 PERLVAR(Iorigfilename, char *)
26 PERLVAR(Idiehook, SV *)
27 PERLVAR(Iwarnhook, SV *)
30 PERLVAR(Iminus_c, bool)
31 PERLVAR(Ipatchlevel, SV *)
32 PERLVAR(Ilocalpatches, const char * const *)
33 PERLVARI(Isplitstr, const char *, " ")
34 PERLVAR(Ipreprocess, bool)
35 PERLVAR(Iminus_n, bool)
36 PERLVAR(Iminus_p, bool)
37 PERLVAR(Iminus_l, bool)
38 PERLVAR(Iminus_a, bool)
39 PERLVAR(Iminus_F, bool)
40 PERLVAR(Idoswitches, bool)
41 PERLVAR(Iminus_E, bool)
44 =head1 Global Variables
46 =for apidoc mn|bool|PL_dowarn
48 The C variable which corresponds to Perl's $^W warning variable.
54 PERLVAR(Iwidesyscalls, bool) /* unused since 5.8.1 */
55 PERLVAR(Idoextract, bool)
56 PERLVAR(Isawampersand, bool) /* must save all match strings */
57 PERLVAR(Iunsafe, bool)
58 PERLVAR(Iinplace, char *)
59 PERLVAR(Ie_script, SV *)
62 /* This value may be set when embedding for full cleanup */
63 /* 0=none, 1=full, 2=full with checks */
64 PERLVARI(Iperl_destruct_level, int, 0)
66 /* magical thingies */
67 PERLVAR(Ibasetime, Time_t) /* $^T */
68 PERLVAR(Iformfeed, SV *) /* $^L */
71 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
72 /* top fd to pass to subprocesses */
73 PERLVAR(Imultiline, int) /* $*--do strings hold >1 line? */
74 PERLVAR(Istatusvalue, I32) /* $? */
75 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
77 PERLVAR(Istatusvalue_vms,U32)
79 PERLVAR(Istatusvalue_posix,I32)
82 /* shortcuts to various I/O objects */
83 PERLVAR(Istdingv, GV *)
84 PERLVAR(Istderrgv, GV *)
86 PERLVAR(Iargvgv, GV *)
87 PERLVAR(Iargvoutgv, GV *)
88 PERLVAR(Iargvout_stack, AV *)
90 /* shortcuts to regexp stuff */
91 /* this one needs to be moved to thrdvar.h and accessed via
92 * find_threadsv() when USE_5005THREADS */
93 PERLVAR(Ireplgv, GV *)
95 /* shortcuts to misc objects */
98 /* shortcuts to debugging objects */
100 PERLVAR(IDBline, GV *)
103 =for apidoc mn|GV *|PL_DBsub
104 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
105 the SV which holds the name of the sub being debugged. This is the C
106 variable which corresponds to Perl's $DB::sub variable. See
109 =for apidoc mn|SV *|PL_DBsingle
110 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
111 boolean which indicates whether subs are being single-stepped.
112 Single-stepping is automatically turned on after every step. This is the C
113 variable which corresponds to Perl's $DB::single variable. See
116 =for apidoc mn|SV *|PL_DBtrace
117 Trace variable used when Perl is run in debugging mode, with the B<-d>
118 switch. This is the C variable which corresponds to Perl's $DB::trace
119 variable. See C<PL_DBsingle>.
124 PERLVAR(IDBsub, GV *)
125 PERLVAR(IDBsingle, SV *)
126 PERLVAR(IDBtrace, SV *)
127 PERLVAR(IDBsignal, SV *)
128 PERLVAR(Ilineary, AV *) /* lines of script for debugger */
129 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
132 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
133 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
134 PERLVAR(Icurstname, SV *) /* name of current package */
135 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
136 PERLVAR(Iendav, AV *) /* names of END subroutines */
137 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
138 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
139 PERLVAR(Istrtab, HV *) /* shared string table */
140 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
142 /* memory management */
143 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
144 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
145 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
146 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
148 /* funky return mechanisms */
149 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
151 /* subprocess state */
152 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
155 PERLVAR(Itainting, bool) /* doing taint checks */
156 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
158 /* current interpreter roots */
159 PERLVAR(Imain_cv, CV *)
160 PERLVAR(Imain_root, OP *)
161 PERLVAR(Imain_start, OP *)
162 PERLVAR(Ieval_root, OP *)
163 PERLVAR(Ieval_start, OP *)
165 /* runtime control stuff */
166 PERLVARI(Icurcopdb, COP *, NULL)
167 PERLVARI(Icopline, line_t, NOLINE)
169 /* statics moved here for shared library purposes */
170 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
171 PERLVAR(Ilastfd, int) /* what to preserve mode on */
172 PERLVAR(Ioldname, char *) /* what to preserve mode on */
173 PERLVAR(IArgv, char **) /* stuff to free from do_aexec, vfork safe */
174 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
175 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
176 PERLVAR(Ipreambled, bool)
177 PERLVAR(Ipreambleav, AV *)
178 PERLVARI(Ilaststatval, int, -1)
179 PERLVARI(Ilaststype, I32, OP_STAT)
180 PERLVAR(Imess_sv, SV *)
182 /* XXX shouldn't these be per-thread? --GSAR */
183 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
185 /* interpreter atexit processing */
186 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
187 /* list of exit functions */
188 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
191 =for apidoc Amn|HV*|PL_modglobal
193 C<PL_modglobal> is a general purpose, interpreter global HV for use by
194 extensions that need to keep information on a per-interpreter basis.
195 In a pinch, it can also be used as a symbol table for extensions
196 to share data among each other. It is a good idea to use keys
197 prefixed by the package name of the extension that owns the data.
202 PERLVAR(Imodglobal, HV *) /* per-interp module data */
204 /* these used to be in global before 5.004_68 */
205 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
206 PERLVARI(Irsfp, PerlIO * VOL, NULL) /* current source file pointer */
207 PERLVARI(Irsfp_filters, AV *, NULL) /* keeps active source filters */
209 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
211 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
212 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
213 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
214 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
215 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
217 #ifdef HAVE_INTERP_INTERN
218 PERLVAR(Isys_intern, struct interp_intern)
219 /* platform internals */
222 /* more statics moved here */
223 PERLVARI(Igeneration, int, 100) /* from op.c */
224 PERLVAR(IDBcv, CV *) /* from perl.c */
226 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
227 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
229 PERLVAR(Ilinestart, char *) /* beg. of most recently read line */
230 PERLVAR(Ipending_ident, char) /* pending identifier lookup */
231 PERLVAR(Isublex_info, SUBLEXINFO) /* from toke.c */
233 PERLVAR(Iuid, Uid_t) /* current real user id */
234 PERLVAR(Ieuid, Uid_t) /* current effective user id */
235 PERLVAR(Igid, Gid_t) /* current real group id */
236 PERLVAR(Iegid, Gid_t) /* current effective group id */
237 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
238 PERLVARI(Ian, U32, 0) /* malloc sequence number */
239 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
240 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
241 PERLVAR(Iorigenviron, char **)
242 PERLVAR(Iorigalen, U32)
243 #ifdef PERL_USES_PL_PIDSTATUS
244 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
246 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
247 PERLVAR(Iosname, char *) /* operating system */
249 PERLVAR(Isighandlerp, Sighandler_t)
251 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
253 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
254 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
256 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
258 PERLVARA(Itokenbuf,256, char)
261 =for apidoc Amn|SV|PL_sv_undef
262 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
264 =for apidoc Amn|SV|PL_sv_no
265 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
268 =for apidoc Amn|SV|PL_sv_yes
269 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
275 PERLVAR(Isv_undef, SV)
280 PERLVARI(Icshname, const char *, CSH)
281 PERLVARI(Icshlen, I32, 0)
284 PERLVAR(Ilex_state, U32) /* next token is determined */
285 PERLVAR(Ilex_defer, U32) /* state after determined token */
286 PERLVAR(Ilex_expect, int) /* expect after determined token */
287 PERLVAR(Ilex_brackets, I32) /* bracket count */
288 PERLVAR(Ilex_formbrack, I32) /* bracket count at outer format level */
289 PERLVAR(Ilex_casemods, I32) /* casemod count */
290 PERLVAR(Ilex_dojoin, I32) /* doing an array interpolation */
291 PERLVAR(Ilex_starts, I32) /* how many interps done on level */
292 PERLVAR(Ilex_stuff, SV *) /* runtime pattern from m// or s/// */
293 PERLVAR(Ilex_repl, SV *) /* runtime replacement from s/// */
294 PERLVAR(Ilex_op, OP *) /* extra info to pass back on op */
295 PERLVAR(Ilex_inpat, OP *) /* in pattern $) and $| are special */
296 PERLVAR(Ilex_inwhat, I32) /* what kind of quoting are we in */
297 PERLVAR(Ilex_brackstack,char *) /* what kind of brackets to pop */
298 PERLVAR(Ilex_casestack, char *) /* what kind of case mods in effect */
300 /* What we know when we're in LEX_KNOWNEXT state. */
301 PERLVARA(Inextval,5, YYSTYPE) /* value of next token, if any */
302 PERLVARA(Inexttype,5, I32) /* type of next token */
303 PERLVAR(Inexttoke, I32)
305 PERLVAR(Ilinestr, SV *)
306 PERLVAR(Ibufptr, char *)
307 PERLVAR(Ioldbufptr, char *)
308 PERLVAR(Ioldoldbufptr, char *)
309 PERLVAR(Ibufend, char *)
310 PERLVARI(Iexpect,int, XSTATE) /* how to interpret ambiguous tokens */
312 PERLVAR(Imulti_start, I32) /* 1st line of multi-line string */
313 PERLVAR(Imulti_end, I32) /* last line of multi-line string */
314 PERLVAR(Imulti_open, I32) /* delimiter of said string */
315 PERLVAR(Imulti_close, I32) /* delimiter of said string */
317 PERLVAR(Ierror_count, I32) /* how many errors so far, max 10 */
318 PERLVAR(Isubline, I32) /* line this subroutine began on */
319 PERLVAR(Isubname, SV *) /* name of current subroutine */
321 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
322 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
323 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
324 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
325 PERLVAR(Ipad_reset_pending, I32) /* reset pad on next attempted alloc */
327 PERLVAR(Ilast_uni, char *) /* position of last named-unary op */
328 PERLVAR(Ilast_lop, char *) /* position of last list operator */
329 PERLVAR(Ilast_lop_op, OPCODE) /* last list operator */
330 PERLVAR(Iin_my, I32) /* we're compiling a "my" (or "our") declaration */
331 PERLVAR(Iin_my_stash, HV *) /* declared class of this "my" declaration */
333 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
336 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
338 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
340 PERLVARI(Iamagic_generation, long, 0)
342 #ifdef USE_LOCALE_COLLATE
343 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
344 PERLVAR(Icollation_name,char *) /* Name of current collation */
345 PERLVARI(Icollation_standard, bool, TRUE)
346 /* Assume simple collation */
347 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
348 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
349 #endif /* USE_LOCALE_COLLATE */
351 #ifdef USE_LOCALE_NUMERIC
353 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
354 PERLVARI(Inumeric_standard, bool, TRUE)
355 /* Assume simple numerics */
356 PERLVARI(Inumeric_local, bool, TRUE)
357 /* Assume local numerics */
359 PERLVAR(Inumeric_compat1, char)
360 /* Used to be numeric_radix */
361 #endif /* !USE_LOCALE_NUMERIC */
363 /* utf8 character classes */
364 PERLVAR(Iutf8_alnum, SV *)
365 PERLVAR(Iutf8_alnumc, SV *)
366 PERLVAR(Iutf8_ascii, SV *)
367 PERLVAR(Iutf8_alpha, SV *)
368 PERLVAR(Iutf8_space, SV *)
369 PERLVAR(Iutf8_cntrl, SV *)
370 PERLVAR(Iutf8_graph, SV *)
371 PERLVAR(Iutf8_digit, SV *)
372 PERLVAR(Iutf8_upper, SV *)
373 PERLVAR(Iutf8_lower, SV *)
374 PERLVAR(Iutf8_print, SV *)
375 PERLVAR(Iutf8_punct, SV *)
376 PERLVAR(Iutf8_xdigit, SV *)
377 PERLVAR(Iutf8_mark, SV *)
378 PERLVAR(Iutf8_toupper, SV *)
379 PERLVAR(Iutf8_totitle, SV *)
380 PERLVAR(Iutf8_tolower, SV *)
381 PERLVAR(Iutf8_tofold, SV *)
382 PERLVAR(Ilast_swash_hv, HV *)
383 PERLVAR(Ilast_swash_klen, U32)
384 PERLVARA(Ilast_swash_key,10, U8)
385 PERLVAR(Ilast_swash_tmps, U8 *)
386 PERLVAR(Ilast_swash_slen, STRLEN)
388 /* perly.c globals */
389 PERLVAR(Iyycharp, int *)
390 PERLVAR(Iyylvalp, YYSTYPE *)
392 PERLVARI(Iglob_index, int, 0)
393 PERLVAR(Isrand_called, bool)
394 PERLVARA(Iuudmap,256, char)
395 PERLVAR(Ibitcount, char *)
397 PERLVAR(Ipsig_ptr, SV**)
398 PERLVAR(Ipsig_name, SV**)
400 #if defined(PERL_IMPLICIT_SYS)
401 PERLVAR(IMem, struct IPerlMem*)
402 PERLVAR(IMemShared, struct IPerlMem*)
403 PERLVAR(IMemParse, struct IPerlMem*)
404 PERLVAR(IEnv, struct IPerlEnv*)
405 PERLVAR(IStdIO, struct IPerlStdIO*)
406 PERLVAR(ILIO, struct IPerlLIO*)
407 PERLVAR(IDir, struct IPerlDir*)
408 PERLVAR(ISock, struct IPerlSock*)
409 PERLVAR(IProc, struct IPerlProc*)
412 #if defined(USE_ITHREADS)
413 PERLVAR(Iptr_table, PTR_TBL_t*)
415 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
417 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
419 /* 5.6.0 stopped here */
421 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
422 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
424 #ifdef USE_LOCALE_NUMERIC
426 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
430 #if defined(USE_ITHREADS)
431 PERLVAR(Iregex_pad, SV**) /* All regex objects */
432 PERLVAR(Iregex_padav, AV*) /* All regex objects */
436 #ifdef USE_REENTRANT_API
437 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
440 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
442 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
443 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
446 PERLVARI(Iperlio, PerlIO *,NULL)
447 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
448 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
451 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
453 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
455 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
457 #ifdef PL_OP_SLAB_ALLOC
458 PERLVAR(IOpPtr,I32 **)
459 PERLVARI(IOpSpace,I32,0)
460 PERLVAR(IOpSlab,I32 *)
463 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
465 PERLVAR(Iutf8_idstart, SV *)
466 PERLVAR(Iutf8_idcont, SV *)
468 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
470 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
472 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
474 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
476 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
478 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
480 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
482 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
484 /* Hooks to shared SVs and locks. */
485 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
486 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
488 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
490 /* This reference ensures that the mathoms are linked with perl */
491 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
493 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
495 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
497 /* Force inclusion of both runops options */
498 PERLVARI(Irunops_std, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_standard))
499 PERLVARI(Irunops_dbg, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_debug))
501 /* Stores the PPID */
502 #ifdef THREADS_HAVE_PIDS
503 PERLVARI(Ippid, IV, 0)
506 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
508 PERLVARI(Ihash_seed_set, bool, FALSE) /* Hash initialized? */
510 PERLVAR(IDBassertion, SV *)
512 PERLVARI(Icv_has_eval, I32, 0) /* PL_compcv includes an entereval or similar */
514 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
516 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
518 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
519 /* File descriptor to talk to the child which dumps scalars. */
520 PERLVARI(Idumper_fd, int, -1)
523 #ifdef PERL_IMPLICIT_CONTEXT
524 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
525 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
528 #ifdef PERL_TRACK_MEMPOOL
529 /* For use with the memory debugging code in util.c */
530 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
533 /* New variables must be added to the very end, before this comment,
534 * for binary compatibility (the offsets of the old members must not change).
535 * (Don't forget to add your variable also to perl_clone()!)
536 * XSUB.h provides wrapper functions via perlapi.h that make this
537 * irrelevant, but not all code may be expected to #include XSUB.h.