3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 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 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #define PERL_IN_PERL_C
18 #include "patchlevel.h" /* for local_patches */
22 char *nw_get_sitelib(const char *pl);
25 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
42 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
43 char *getenv (char *); /* Usually in <stdlib.h> */
46 static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
54 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
60 #if defined(USE_ITHREADS)
61 # define INIT_TLS_AND_INTERP \
63 if (!PL_curinterp) { \
64 PERL_SET_INTERP(my_perl); \
67 PERL_SET_THX(my_perl); \
69 MUTEX_INIT(&PL_dollarzero_mutex); \
72 PERL_SET_THX(my_perl); \
76 # define INIT_TLS_AND_INTERP \
78 if (!PL_curinterp) { \
79 PERL_SET_INTERP(my_perl); \
81 PERL_SET_THX(my_perl); \
85 #ifdef PERL_IMPLICIT_SYS
87 perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
88 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
89 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
90 struct IPerlDir* ipD, struct IPerlSock* ipS,
91 struct IPerlProc* ipP)
93 PerlInterpreter *my_perl;
94 /* New() needs interpreter, so call malloc() instead */
95 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
97 Zero(my_perl, 1, PerlInterpreter);
113 =head1 Embedding Functions
115 =for apidoc perl_alloc
117 Allocates a new Perl interpreter. See L<perlembed>.
125 PerlInterpreter *my_perl;
126 #ifdef USE_5005THREADS
130 /* New() needs interpreter, so call malloc() instead */
131 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
134 Zero(my_perl, 1, PerlInterpreter);
137 #endif /* PERL_IMPLICIT_SYS */
140 =for apidoc perl_construct
142 Initializes a new Perl interpreter. See L<perlembed>.
148 perl_construct(pTHXx)
152 PL_perl_destruct_level = 1;
154 if (PL_perl_destruct_level > 0)
157 /* Init the real globals (and main thread)? */
159 #ifdef PERL_FLEXIBLE_EXCEPTIONS
160 PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */
163 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
165 PL_linestr = NEWSV(65,79);
166 sv_upgrade(PL_linestr,SVt_PVIV);
168 if (!SvREADONLY(&PL_sv_undef)) {
169 /* set read-only and try to insure than we wont see REFCNT==0
172 SvREADONLY_on(&PL_sv_undef);
173 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
175 sv_setpv(&PL_sv_no,PL_No);
177 SvREADONLY_on(&PL_sv_no);
178 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
180 sv_setpv(&PL_sv_yes,PL_Yes);
182 SvREADONLY_on(&PL_sv_yes);
183 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
185 SvREADONLY_on(&PL_sv_placeholder);
186 SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2;
189 PL_sighandlerp = Perl_sighandler;
190 PL_pidstatus = newHV();
193 PL_rs = newSVpvn("\n", 1);
198 PL_lex_state = LEX_NOTPARSING;
204 SET_NUMERIC_STANDARD();
208 PL_patchlevel = NEWSV(0,4);
209 (void)SvUPGRADE(PL_patchlevel, SVt_PVNV);
210 if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
211 SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1);
212 s = (U8*)SvPVX(PL_patchlevel);
213 /* Build version strings using "native" characters */
214 s = uvchr_to_utf8(s, (UV)PERL_REVISION);
215 s = uvchr_to_utf8(s, (UV)PERL_VERSION);
216 s = uvchr_to_utf8(s, (UV)PERL_SUBVERSION);
218 SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
219 SvPOK_on(PL_patchlevel);
220 SvNVX(PL_patchlevel) = (NV)PERL_REVISION +
221 ((NV)PERL_VERSION / (NV)1000) +
222 ((NV)PERL_SUBVERSION / (NV)1000000);
223 SvNOK_on(PL_patchlevel); /* dual valued */
224 SvUTF8_on(PL_patchlevel);
225 SvREADONLY_on(PL_patchlevel);
228 #if defined(LOCAL_PATCH_COUNT)
229 PL_localpatches = local_patches; /* For possible -v */
232 #ifdef HAVE_INTERP_INTERN
236 PerlIO_init(aTHX); /* Hook to IO system */
238 PL_fdpid = newAV(); /* for remembering popen pids by fd */
239 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
240 PL_errors = newSVpvn("",0);
241 sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
242 sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
243 sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
245 PL_regex_padav = newAV();
246 av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */
247 PL_regex_pad = AvARRAY(PL_regex_padav);
249 #ifdef USE_REENTRANT_API
250 Perl_reentrant_init(aTHX);
253 /* Note that strtab is a rather special HV. Assumptions are made
254 about not iterating on it, and not adding tie magic to it.
255 It is properly deallocated in perl_destruct() */
258 HvSHAREKEYS_off(PL_strtab); /* mandatory */
259 hv_ksplit(PL_strtab, 512);
261 #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
262 _dyld_lookup_and_bind
263 ("__environ", (unsigned long *) &environ_pointer, NULL);
267 # ifdef USE_ENVIRON_ARRAY
268 PL_origenviron = environ;
272 /* Use sysconf(_SC_CLK_TCK) if available, if not
273 * available or if the sysconf() fails, use the HZ. */
274 #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
275 PL_clocktick = sysconf(_SC_CLK_TCK);
276 if (PL_clocktick <= 0)
280 PL_stashcache = newHV();
286 =for apidoc nothreadhook
288 Stub that provides thread hook for perl_destruct when there are
295 Perl_nothreadhook(pTHX)
301 =for apidoc perl_destruct
303 Shuts down a Perl interpreter. See L<perlembed>.
311 volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */
313 #ifdef USE_5005THREADS
315 #endif /* USE_5005THREADS */
317 /* wait for all pseudo-forked children to finish */
318 PERL_WAIT_FOR_CHILDREN;
320 destruct_level = PL_perl_destruct_level;
324 if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) {
326 if (destruct_level < i)
333 if(PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
338 if (PL_endav && !PL_minus_c)
339 call_list(PL_scopestack_ix, PL_endav);
345 /* Need to flush since END blocks can produce output */
348 if (CALL_FPTR(PL_threadhook)(aTHX)) {
349 /* Threads hook has vetoed further cleanup */
350 return STATUS_NATIVE_EXPORT;
353 /* We must account for everything. */
355 /* Destroy the main CV and syntax tree */
357 op_free(PL_main_root);
358 PL_main_root = Nullop;
360 PL_curcop = &PL_compiling;
361 PL_main_start = Nullop;
362 SvREFCNT_dec(PL_main_cv);
366 /* Tell PerlIO we are about to tear things apart in case
367 we have layers which are using resources that should
371 PerlIO_destruct(aTHX);
373 if (PL_sv_objcount) {
375 * Try to destruct global references. We do this first so that the
376 * destructors and destructees still exist. Some sv's might remain.
377 * Non-referenced objects are on their own.
382 /* unhook hooks which will soon be, or use, destroyed data */
383 SvREFCNT_dec(PL_warnhook);
384 PL_warnhook = Nullsv;
385 SvREFCNT_dec(PL_diehook);
388 /* call exit list functions */
389 while (PL_exitlistlen-- > 0)
390 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
392 Safefree(PL_exitlist);
397 if (destruct_level == 0){
399 DEBUG_P(debprofdump());
401 #if defined(PERLIO_LAYERS)
402 /* No more IO - including error messages ! */
403 PerlIO_cleanup(aTHX);
406 /* The exit() function will do everything that needs doing. */
407 return STATUS_NATIVE_EXPORT;
410 /* jettison our possibly duplicated environment */
411 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
412 * so we certainly shouldn't free it here
415 #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
416 if (environ != PL_origenviron
418 /* only main thread can free environ[0] contents */
419 && PL_curinterp == aTHX
425 for (i = 0; environ[i]; i++)
426 safesysfree(environ[i]);
428 /* Must use safesysfree() when working with environ. */
429 safesysfree(environ);
431 environ = PL_origenviron;
434 #endif /* !PERL_MICRO */
437 /* the syntax tree is shared between clones
438 * so op_free(PL_main_root) only ReREFCNT_dec's
439 * REGEXPs in the parent interpreter
440 * we need to manually ReREFCNT_dec for the clones
443 I32 i = AvFILLp(PL_regex_padav) + 1;
444 SV **ary = AvARRAY(PL_regex_padav);
448 REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv));
450 if (SvFLAGS(resv) & SVf_BREAK) {
451 /* this is PL_reg_curpm, already freed
452 * flag is set in regexec.c:S_regtry
454 SvFLAGS(resv) &= ~SVf_BREAK;
456 else if(SvREPADTMP(resv)) {
457 SvREPADTMP_off(resv);
464 SvREFCNT_dec(PL_regex_padav);
465 PL_regex_padav = Nullav;
469 SvREFCNT_dec((SV*) PL_stashcache);
470 PL_stashcache = NULL;
472 /* loosen bonds of global variables */
475 (void)PerlIO_close(PL_rsfp);
479 /* Filters for program text */
480 SvREFCNT_dec(PL_rsfp_filters);
481 PL_rsfp_filters = Nullav;
484 PL_preprocess = FALSE;
490 PL_doswitches = FALSE;
491 PL_dowarn = G_WARN_OFF;
492 PL_doextract = FALSE;
493 PL_sawampersand = FALSE; /* must save all match strings */
496 Safefree(PL_inplace);
498 SvREFCNT_dec(PL_patchlevel);
501 SvREFCNT_dec(PL_e_script);
502 PL_e_script = Nullsv;
505 /* magical thingies */
507 SvREFCNT_dec(PL_ofs_sv); /* $, */
510 SvREFCNT_dec(PL_ors_sv); /* $\ */
513 SvREFCNT_dec(PL_rs); /* $/ */
516 PL_multiline = 0; /* $* */
517 Safefree(PL_osname); /* $^O */
520 SvREFCNT_dec(PL_statname);
521 PL_statname = Nullsv;
524 /* defgv, aka *_ should be taken care of elsewhere */
526 /* clean up after study() */
527 SvREFCNT_dec(PL_lastscream);
528 PL_lastscream = Nullsv;
529 Safefree(PL_screamfirst);
531 Safefree(PL_screamnext);
535 Safefree(PL_efloatbuf);
536 PL_efloatbuf = Nullch;
539 /* startup and shutdown function lists */
540 SvREFCNT_dec(PL_beginav);
541 SvREFCNT_dec(PL_beginav_save);
542 SvREFCNT_dec(PL_endav);
543 SvREFCNT_dec(PL_checkav);
544 SvREFCNT_dec(PL_checkav_save);
545 SvREFCNT_dec(PL_initav);
547 PL_beginav_save = Nullav;
550 PL_checkav_save = Nullav;
553 /* shortcuts just get cleared */
559 PL_argvoutgv = Nullgv;
561 PL_stderrgv = Nullgv;
562 PL_last_in_gv = Nullgv;
564 PL_debstash = Nullhv;
566 /* reset so print() ends up where we expect */
569 SvREFCNT_dec(PL_argvout_stack);
570 PL_argvout_stack = Nullav;
572 SvREFCNT_dec(PL_modglobal);
573 PL_modglobal = Nullhv;
574 SvREFCNT_dec(PL_preambleav);
575 PL_preambleav = Nullav;
576 SvREFCNT_dec(PL_subname);
578 SvREFCNT_dec(PL_linestr);
580 SvREFCNT_dec(PL_pidstatus);
581 PL_pidstatus = Nullhv;
582 SvREFCNT_dec(PL_toptarget);
583 PL_toptarget = Nullsv;
584 SvREFCNT_dec(PL_bodytarget);
585 PL_bodytarget = Nullsv;
586 PL_formtarget = Nullsv;
588 /* free locale stuff */
589 #ifdef USE_LOCALE_COLLATE
590 Safefree(PL_collation_name);
591 PL_collation_name = Nullch;
594 #ifdef USE_LOCALE_NUMERIC
595 Safefree(PL_numeric_name);
596 PL_numeric_name = Nullch;
597 SvREFCNT_dec(PL_numeric_radix_sv);
600 /* clear utf8 character classes */
601 SvREFCNT_dec(PL_utf8_alnum);
602 SvREFCNT_dec(PL_utf8_alnumc);
603 SvREFCNT_dec(PL_utf8_ascii);
604 SvREFCNT_dec(PL_utf8_alpha);
605 SvREFCNT_dec(PL_utf8_space);
606 SvREFCNT_dec(PL_utf8_cntrl);
607 SvREFCNT_dec(PL_utf8_graph);
608 SvREFCNT_dec(PL_utf8_digit);
609 SvREFCNT_dec(PL_utf8_upper);
610 SvREFCNT_dec(PL_utf8_lower);
611 SvREFCNT_dec(PL_utf8_print);
612 SvREFCNT_dec(PL_utf8_punct);
613 SvREFCNT_dec(PL_utf8_xdigit);
614 SvREFCNT_dec(PL_utf8_mark);
615 SvREFCNT_dec(PL_utf8_toupper);
616 SvREFCNT_dec(PL_utf8_totitle);
617 SvREFCNT_dec(PL_utf8_tolower);
618 SvREFCNT_dec(PL_utf8_tofold);
619 SvREFCNT_dec(PL_utf8_idstart);
620 SvREFCNT_dec(PL_utf8_idcont);
621 PL_utf8_alnum = Nullsv;
622 PL_utf8_alnumc = Nullsv;
623 PL_utf8_ascii = Nullsv;
624 PL_utf8_alpha = Nullsv;
625 PL_utf8_space = Nullsv;
626 PL_utf8_cntrl = Nullsv;
627 PL_utf8_graph = Nullsv;
628 PL_utf8_digit = Nullsv;
629 PL_utf8_upper = Nullsv;
630 PL_utf8_lower = Nullsv;
631 PL_utf8_print = Nullsv;
632 PL_utf8_punct = Nullsv;
633 PL_utf8_xdigit = Nullsv;
634 PL_utf8_mark = Nullsv;
635 PL_utf8_toupper = Nullsv;
636 PL_utf8_totitle = Nullsv;
637 PL_utf8_tolower = Nullsv;
638 PL_utf8_tofold = Nullsv;
639 PL_utf8_idstart = Nullsv;
640 PL_utf8_idcont = Nullsv;
642 if (!specialWARN(PL_compiling.cop_warnings))
643 SvREFCNT_dec(PL_compiling.cop_warnings);
644 PL_compiling.cop_warnings = Nullsv;
645 if (!specialCopIO(PL_compiling.cop_io))
646 SvREFCNT_dec(PL_compiling.cop_io);
647 PL_compiling.cop_io = Nullsv;
648 CopFILE_free(&PL_compiling);
649 CopSTASH_free(&PL_compiling);
651 /* Prepare to destruct main symbol table. */
656 SvREFCNT_dec(PL_curstname);
657 PL_curstname = Nullsv;
659 /* clear queued errors */
660 SvREFCNT_dec(PL_errors);
664 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
665 if (PL_scopestack_ix != 0)
666 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
667 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
668 (long)PL_scopestack_ix);
669 if (PL_savestack_ix != 0)
670 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
671 "Unbalanced saves: %ld more saves than restores\n",
672 (long)PL_savestack_ix);
673 if (PL_tmps_floor != -1)
674 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
675 (long)PL_tmps_floor + 1);
676 if (cxstack_ix != -1)
677 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
678 (long)cxstack_ix + 1);
681 /* Now absolutely destruct everything, somehow or other, loops or no. */
682 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
683 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
685 /* the 2 is for PL_fdpid and PL_strtab */
686 while (PL_sv_count > 2 && sv_clean_all())
689 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
690 SvFLAGS(PL_fdpid) |= SVt_PVAV;
691 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
692 SvFLAGS(PL_strtab) |= SVt_PVHV;
694 AvREAL_off(PL_fdpid); /* no surviving entries */
695 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
698 #ifdef HAVE_INTERP_INTERN
702 /* Destruct the global string table. */
704 /* Yell and reset the HeVAL() slots that are still holding refcounts,
705 * so that sv_free() won't fail on them.
713 max = HvMAX(PL_strtab);
714 array = HvARRAY(PL_strtab);
717 if (hent && ckWARN_d(WARN_INTERNAL)) {
718 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
719 "Unbalanced string table refcount: (%d) for \"%s\"",
720 HeVAL(hent) - Nullsv, HeKEY(hent));
721 HeVAL(hent) = Nullsv;
731 SvREFCNT_dec(PL_strtab);
734 /* free the pointer table used for cloning */
735 ptr_table_free(PL_ptr_table);
738 /* free special SVs */
740 SvREFCNT(&PL_sv_yes) = 0;
741 sv_clear(&PL_sv_yes);
742 SvANY(&PL_sv_yes) = NULL;
743 SvFLAGS(&PL_sv_yes) = 0;
745 SvREFCNT(&PL_sv_no) = 0;
747 SvANY(&PL_sv_no) = NULL;
748 SvFLAGS(&PL_sv_no) = 0;
752 for (i=0; i<=2; i++) {
753 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
754 sv_clear(PERL_DEBUG_PAD(i));
755 SvANY(PERL_DEBUG_PAD(i)) = NULL;
756 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
760 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
761 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
763 #ifdef DEBUG_LEAKING_SCALARS
764 if (PL_sv_count != 0) {
769 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
770 svend = &sva[SvREFCNT(sva)];
771 for (sv = sva + 1; sv < svend; ++sv) {
772 if (SvTYPE(sv) != SVTYPEMASK) {
773 PerlIO_printf(Perl_debug_log, "leaked: 0x%p\n", sv);
781 #if defined(PERLIO_LAYERS)
782 /* No more IO - including error messages ! */
783 PerlIO_cleanup(aTHX);
786 /* sv_undef needs to stay immortal until after PerlIO_cleanup
787 as currently layers use it rather than Nullsv as a marker
788 for no arg - and will try and SvREFCNT_dec it.
790 SvREFCNT(&PL_sv_undef) = 0;
791 SvREADONLY_off(&PL_sv_undef);
793 SvREFCNT(&PL_sv_placeholder) = 0;
794 SvREADONLY_off(&PL_sv_placeholder);
796 Safefree(PL_origfilename);
797 Safefree(PL_reg_start_tmp);
799 Safefree(PL_reg_curpm);
800 Safefree(PL_reg_poscache);
802 Safefree(PL_op_mask);
803 Safefree(PL_psig_ptr);
804 Safefree(PL_psig_name);
805 Safefree(PL_bitcount);
806 Safefree(PL_psig_pend);
808 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
810 DEBUG_P(debprofdump());
812 #ifdef USE_REENTRANT_API
813 Perl_reentrant_free(aTHX);
818 /* As the absolutely last thing, free the non-arena SV for mess() */
821 /* it could have accumulated taint magic */
822 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
825 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
826 moremagic = mg->mg_moremagic;
827 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
829 Safefree(mg->mg_ptr);
833 /* we know that type >= SVt_PV */
834 (void)SvOOK_off(PL_mess_sv);
835 Safefree(SvPVX(PL_mess_sv));
836 Safefree(SvANY(PL_mess_sv));
837 Safefree(PL_mess_sv);
840 return STATUS_NATIVE_EXPORT;
844 =for apidoc perl_free
846 Releases a Perl interpreter. See L<perlembed>.
854 #if defined(WIN32) || defined(NETWARE)
855 # if defined(PERL_IMPLICIT_SYS)
857 void *host = nw_internal_host;
859 void *host = w32_internal_host;
863 nw_delete_internal_host(host);
865 win32_delete_internal_host(host);
876 Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
878 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
879 PL_exitlist[PL_exitlistlen].fn = fn;
880 PL_exitlist[PL_exitlistlen].ptr = ptr;
885 =for apidoc perl_parse
887 Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
893 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
898 #ifdef USE_5005THREADS
902 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
905 Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
906 setuid perl scripts securely.\n");
910 #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
911 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
912 * This MUST be done before any hash stores or fetches take place.
913 * If you set PL_hash_seed (and assumedly also PL_hash_seed_set) yourself,
914 * it is your responsibility to provide a good random seed!
915 * You can also define PERL_HASH_SEED in compile time, see hv.h. */
916 if (!PL_hash_seed_set)
917 PL_hash_seed = get_hash_seed();
919 char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
925 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
929 #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
935 /* Set PL_origalen be the sum of the contiguous argv[]
936 * elements plus the size of the env in case that it is
937 * contiguous with the argv[]. This is used in mg.c:mg_set()
938 * as the maximum modifiable length of $0. In the worst case
939 * the area we are able to modify is limited to the size of
940 * the original argv[0]. (See below for 'contiguous', though.)
945 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
946 /* Do the mask check only if the args seem like aligned. */
948 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
950 /* See if all the arguments are contiguous in memory. Note
951 * that 'contiguous' is a loose term because some platforms
952 * align the argv[] and the envp[]. If the arguments look
953 * like non-aligned, assume that they are 'strictly' or
954 * 'traditionally' contiguous. If the arguments look like
955 * aligned, we just check that they are within aligned
956 * PTRSIZE bytes. As long as no system has something bizarre
957 * like the argv[] interleaved with some other data, we are
958 * fine. (Did I just evoke Murphy's Law?) --jhi */
959 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) {
961 for (i = 1; i < PL_origargc; i++) {
962 if ((PL_origargv[i] == s + 1
964 || PL_origargv[i] == s + 2
969 (PL_origargv[i] > s &&
971 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
981 /* Can we grab env area too to be used as the area for $0? */
982 if (PL_origenviron) {
983 if ((PL_origenviron[0] == s + 1
985 || (PL_origenviron[0] == s + 9 && (s += 8))
990 (PL_origenviron[0] > s &&
992 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
996 s = PL_origenviron[0];
999 my_setenv("NoNe SuCh", Nullch);
1000 /* Force copy of environment. */
1001 for (i = 1; PL_origenviron[i]; i++) {
1002 if (PL_origenviron[i] == s + 1
1005 (PL_origenviron[i] > s &&
1006 PL_origenviron[i] <=
1007 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1010 s = PL_origenviron[i];
1018 PL_origalen = s - PL_origargv[0];
1023 /* Come here if running an undumped a.out. */
1025 PL_origfilename = savepv(argv[0]);
1026 PL_do_undump = FALSE;
1027 cxstack_ix = -1; /* start label stack again */
1029 init_postdump_symbols(argc,argv,env);
1034 op_free(PL_main_root);
1035 PL_main_root = Nullop;
1037 PL_main_start = Nullop;
1038 SvREFCNT_dec(PL_main_cv);
1039 PL_main_cv = Nullcv;
1042 oldscope = PL_scopestack_ix;
1043 PL_dowarn = G_WARN_OFF;
1045 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1046 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1052 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1053 parse_body(env,xsinit);
1056 call_list(oldscope, PL_checkav);
1063 /* my_exit() was called */
1064 while (PL_scopestack_ix > oldscope)
1067 PL_curstash = PL_defstash;
1069 call_list(oldscope, PL_checkav);
1070 ret = STATUS_NATIVE_EXPORT;
1073 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1081 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1083 S_vparse_body(pTHX_ va_list args)
1085 char **env = va_arg(args, char**);
1086 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1088 return parse_body(env, xsinit);
1093 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1095 int argc = PL_origargc;
1096 char **argv = PL_origargv;
1097 char *scriptname = NULL;
1099 VOL bool dosearch = FALSE;
1100 char *validarg = "";
1103 char *cddir = Nullch;
1105 sv_setpvn(PL_linestr,"",0);
1106 sv = newSVpvn("",0); /* first used for -I flags */
1110 for (argc--,argv++; argc > 0; argc--,argv++) {
1111 if (argv[0][0] != '-' || !argv[0][1])
1115 validarg = " PHOOEY ";
1123 #ifndef PERL_STRICT_CR
1148 if ((s = moreswitches(s)))
1153 CHECK_MALLOC_TOO_LATE_FOR('t');
1154 if( !PL_tainting ) {
1155 PL_taint_warn = TRUE;
1161 CHECK_MALLOC_TOO_LATE_FOR('T');
1163 PL_taint_warn = FALSE;
1168 #ifdef MACOS_TRADITIONAL
1169 /* ignore -e for Dev:Pseudo argument */
1170 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1173 if (PL_euid != PL_uid || PL_egid != PL_gid)
1174 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1176 PL_e_script = newSVpvn("",0);
1177 filter_add(read_e_script, NULL);
1180 sv_catpv(PL_e_script, s);
1182 sv_catpv(PL_e_script, argv[1]);
1186 Perl_croak(aTHX_ "No code specified for -e");
1187 sv_catpv(PL_e_script, "\n");
1190 case 'I': /* -I handled both here and in moreswitches() */
1192 if (!*++s && (s=argv[1]) != Nullch) {
1197 STRLEN len = strlen(s);
1198 p = savepvn(s, len);
1199 incpush(p, TRUE, TRUE, FALSE);
1200 sv_catpvn(sv, "-I", 2);
1201 sv_catpvn(sv, p, len);
1202 sv_catpvn(sv, " ", 1);
1206 Perl_croak(aTHX_ "No directory specified for -I");
1210 PL_preprocess = TRUE;
1220 PL_preambleav = newAV();
1221 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1223 PL_Sv = newSVpv("print myconfig();",0);
1225 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1227 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1229 sv_catpv(PL_Sv,"\" Compile-time options:");
1231 sv_catpv(PL_Sv," DEBUGGING");
1233 # ifdef MULTIPLICITY
1234 sv_catpv(PL_Sv," MULTIPLICITY");
1236 # ifdef USE_5005THREADS
1237 sv_catpv(PL_Sv," USE_5005THREADS");
1239 # ifdef USE_ITHREADS
1240 sv_catpv(PL_Sv," USE_ITHREADS");
1242 # ifdef USE_64_BIT_INT
1243 sv_catpv(PL_Sv," USE_64_BIT_INT");
1245 # ifdef USE_64_BIT_ALL
1246 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1248 # ifdef USE_LONG_DOUBLE
1249 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1251 # ifdef USE_LARGE_FILES
1252 sv_catpv(PL_Sv," USE_LARGE_FILES");
1255 sv_catpv(PL_Sv," USE_SOCKS");
1257 # ifdef PERL_IMPLICIT_CONTEXT
1258 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1260 # ifdef PERL_IMPLICIT_SYS
1261 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1263 sv_catpv(PL_Sv,"\\n\",");
1265 #if defined(LOCAL_PATCH_COUNT)
1266 if (LOCAL_PATCH_COUNT > 0) {
1268 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1269 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1270 if (PL_localpatches[i])
1271 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1275 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1278 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1280 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1283 sv_catpv(PL_Sv, "; \
1285 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1288 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1291 print \" \\%ENV:\\n @env\\n\" if @env; \
1292 print \" \\@INC:\\n @INC\\n\";");
1295 PL_Sv = newSVpv("config_vars(qw(",0);
1296 sv_catpv(PL_Sv, ++s);
1297 sv_catpv(PL_Sv, "))");
1300 av_push(PL_preambleav, PL_Sv);
1301 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1304 PL_doextract = TRUE;
1312 if (!*++s || isSPACE(*s)) {
1316 /* catch use of gnu style long options */
1317 if (strEQ(s, "version")) {
1321 if (strEQ(s, "help")) {
1328 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1332 sv_setsv(get_sv("/", TRUE), PL_rs);
1335 #ifndef SECURE_INTERNAL_GETENV
1338 (s = PerlEnv_getenv("PERL5OPT")))
1343 if (*s == '-' && *(s+1) == 'T') {
1344 CHECK_MALLOC_TOO_LATE_FOR('T');
1346 PL_taint_warn = FALSE;
1349 char *popt_copy = Nullch;
1362 if (!strchr("DIMUdmtwA", *s))
1363 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1367 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1368 s = popt_copy + (s - popt);
1369 d = popt_copy + (d - popt);
1376 if( !PL_tainting ) {
1377 PL_taint_warn = TRUE;
1387 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1388 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1392 scriptname = argv[0];
1395 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1397 else if (scriptname == Nullch) {
1399 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1407 open_script(scriptname,dosearch,sv,&fdscript);
1409 validate_suid(validarg, scriptname,fdscript);
1412 #if defined(SIGCHLD) || defined(SIGCLD)
1415 # define SIGCHLD SIGCLD
1417 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1418 if (sigstate == SIG_IGN) {
1419 if (ckWARN(WARN_SIGNAL))
1420 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1421 "Can't ignore signal CHLD, forcing to default");
1422 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1428 #ifdef MACOS_TRADITIONAL
1429 if (PL_doextract || gMacPerl_AlwaysExtract) {
1434 if (cddir && PerlDir_chdir(cddir) < 0)
1435 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1439 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1440 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1441 CvUNIQUE_on(PL_compcv);
1443 CvPADLIST(PL_compcv) = pad_new(0);
1444 #ifdef USE_5005THREADS
1445 CvOWNER(PL_compcv) = 0;
1446 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1447 MUTEX_INIT(CvMUTEXP(PL_compcv));
1448 #endif /* USE_5005THREADS */
1451 boot_core_UNIVERSAL();
1452 boot_core_xsutils();
1455 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1457 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1463 # ifdef HAS_SOCKS5_INIT
1464 socks5_init(argv[0]);
1470 init_predump_symbols();
1471 /* init_postdump_symbols not currently designed to be called */
1472 /* more than once (ENV isn't cleared first, for example) */
1473 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1475 init_postdump_symbols(argc,argv,env);
1477 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1478 * PL_utf8locale is conditionally turned on by
1479 * locale.c:Perl_init_i18nl10n() if the environment
1480 * look like the user wants to use UTF-8. */
1482 /* Requires init_predump_symbols(). */
1483 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1488 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1489 * and the default open disciplines. */
1490 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1491 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1493 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1494 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1495 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1497 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1498 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1499 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1501 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1502 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1503 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1504 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1505 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1508 sv_setpvn(sv, ":utf8\0:utf8", 11);
1510 sv_setpvn(sv, ":utf8\0", 6);
1513 sv_setpvn(sv, "\0:utf8", 6);
1519 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1520 if (strEQ(s, "unsafe"))
1521 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1522 else if (strEQ(s, "safe"))
1523 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1525 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1530 /* now parse the script */
1532 SETERRNO(0,SS_NORMAL);
1534 #ifdef MACOS_TRADITIONAL
1535 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1537 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1539 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1540 MacPerl_MPWFileName(PL_origfilename));
1544 if (yyparse() || PL_error_count) {
1546 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1548 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1553 CopLINE_set(PL_curcop, 0);
1554 PL_curstash = PL_defstash;
1555 PL_preprocess = FALSE;
1557 SvREFCNT_dec(PL_e_script);
1558 PL_e_script = Nullsv;
1565 SAVECOPFILE(PL_curcop);
1566 SAVECOPLINE(PL_curcop);
1567 gv_check(PL_defstash);
1574 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1575 dump_mstats("after compilation:");
1584 =for apidoc perl_run
1586 Tells a Perl interpreter to run. See L<perlembed>.
1597 #ifdef USE_5005THREADS
1601 oldscope = PL_scopestack_ix;
1606 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1608 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1614 cxstack_ix = -1; /* start context stack again */
1616 case 0: /* normal completion */
1617 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1622 case 2: /* my_exit() */
1623 while (PL_scopestack_ix > oldscope)
1626 PL_curstash = PL_defstash;
1627 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1628 PL_endav && !PL_minus_c)
1629 call_list(oldscope, PL_endav);
1631 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1632 dump_mstats("after execution: ");
1634 ret = STATUS_NATIVE_EXPORT;
1638 POPSTACK_TO(PL_mainstack);
1641 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1651 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1653 S_vrun_body(pTHX_ va_list args)
1655 I32 oldscope = va_arg(args, I32);
1657 return run_body(oldscope);
1663 S_run_body(pTHX_ I32 oldscope)
1665 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1666 PL_sawampersand ? "Enabling" : "Omitting"));
1668 if (!PL_restartop) {
1669 DEBUG_x(dump_all());
1670 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1671 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1675 #ifdef MACOS_TRADITIONAL
1676 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1677 (gMacPerl_ErrorFormat ? "# " : ""),
1678 MacPerl_MPWFileName(PL_origfilename));
1680 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1684 if (PERLDB_SINGLE && PL_DBsingle)
1685 sv_setiv(PL_DBsingle, 1);
1687 call_list(oldscope, PL_initav);
1693 PL_op = PL_restartop;
1697 else if (PL_main_start) {
1698 CvDEPTH(PL_main_cv) = 1;
1699 PL_op = PL_main_start;
1709 =head1 SV Manipulation Functions
1711 =for apidoc p||get_sv
1713 Returns the SV of the specified Perl scalar. If C<create> is set and the
1714 Perl variable does not exist then it will be created. If C<create> is not
1715 set and the variable does not exist then NULL is returned.
1721 Perl_get_sv(pTHX_ const char *name, I32 create)
1724 #ifdef USE_5005THREADS
1725 if (name[1] == '\0' && !isALPHA(name[0])) {
1726 PADOFFSET tmp = find_threadsv(name);
1727 if (tmp != NOT_IN_PAD)
1728 return THREADSV(tmp);
1730 #endif /* USE_5005THREADS */
1731 gv = gv_fetchpv(name, create, SVt_PV);
1738 =head1 Array Manipulation Functions
1740 =for apidoc p||get_av
1742 Returns the AV of the specified Perl array. If C<create> is set and the
1743 Perl variable does not exist then it will be created. If C<create> is not
1744 set and the variable does not exist then NULL is returned.
1750 Perl_get_av(pTHX_ const char *name, I32 create)
1752 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1761 =head1 Hash Manipulation Functions
1763 =for apidoc p||get_hv
1765 Returns the HV of the specified Perl hash. If C<create> is set and the
1766 Perl variable does not exist then it will be created. If C<create> is not
1767 set and the variable does not exist then NULL is returned.
1773 Perl_get_hv(pTHX_ const char *name, I32 create)
1775 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1784 =head1 CV Manipulation Functions
1786 =for apidoc p||get_cv
1788 Returns the CV of the specified Perl subroutine. If C<create> is set and
1789 the Perl subroutine does not exist then it will be declared (which has the
1790 same effect as saying C<sub name;>). If C<create> is not set and the
1791 subroutine does not exist then NULL is returned.
1797 Perl_get_cv(pTHX_ const char *name, I32 create)
1799 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1800 /* XXX unsafe for threads if eval_owner isn't held */
1801 /* XXX this is probably not what they think they're getting.
1802 * It has the same effect as "sub name;", i.e. just a forward
1804 if (create && !GvCVu(gv))
1805 return newSUB(start_subparse(FALSE, 0),
1806 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1814 /* Be sure to refetch the stack pointer after calling these routines. */
1818 =head1 Callback Functions
1820 =for apidoc p||call_argv
1822 Performs a callback to the specified Perl sub. See L<perlcall>.
1828 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1830 /* See G_* flags in cop.h */
1831 /* null terminated arg list */
1838 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1843 return call_pv(sub_name, flags);
1847 =for apidoc p||call_pv
1849 Performs a callback to the specified Perl sub. See L<perlcall>.
1855 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1856 /* name of the subroutine */
1857 /* See G_* flags in cop.h */
1859 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1863 =for apidoc p||call_method
1865 Performs a callback to the specified Perl method. The blessed object must
1866 be on the stack. See L<perlcall>.
1872 Perl_call_method(pTHX_ const char *methname, I32 flags)
1873 /* name of the subroutine */
1874 /* See G_* flags in cop.h */
1876 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1879 /* May be called with any of a CV, a GV, or an SV containing the name. */
1881 =for apidoc p||call_sv
1883 Performs a callback to the Perl sub whose name is in the SV. See
1890 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1891 /* See G_* flags in cop.h */
1894 LOGOP myop; /* fake syntax tree node */
1897 volatile I32 retval = 0;
1899 bool oldcatch = CATCH_GET;
1904 if (flags & G_DISCARD) {
1909 Zero(&myop, 1, LOGOP);
1910 myop.op_next = Nullop;
1911 if (!(flags & G_NOARGS))
1912 myop.op_flags |= OPf_STACKED;
1913 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1914 (flags & G_ARRAY) ? OPf_WANT_LIST :
1919 EXTEND(PL_stack_sp, 1);
1920 *++PL_stack_sp = sv;
1922 oldscope = PL_scopestack_ix;
1924 if (PERLDB_SUB && PL_curstash != PL_debstash
1925 /* Handle first BEGIN of -d. */
1926 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1927 /* Try harder, since this may have been a sighandler, thus
1928 * curstash may be meaningless. */
1929 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1930 && !(flags & G_NODEBUG))
1931 PL_op->op_private |= OPpENTERSUB_DB;
1933 if (flags & G_METHOD) {
1934 Zero(&method_op, 1, UNOP);
1935 method_op.op_next = PL_op;
1936 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1937 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1938 PL_op = (OP*)&method_op;
1941 if (!(flags & G_EVAL)) {
1943 call_body((OP*)&myop, FALSE);
1944 retval = PL_stack_sp - (PL_stack_base + oldmark);
1945 CATCH_SET(oldcatch);
1948 myop.op_other = (OP*)&myop;
1950 /* we're trying to emulate pp_entertry() here */
1952 register PERL_CONTEXT *cx;
1953 I32 gimme = GIMME_V;
1958 push_return(Nullop);
1959 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1961 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1963 PL_in_eval = EVAL_INEVAL;
1964 if (flags & G_KEEPERR)
1965 PL_in_eval |= EVAL_KEEPERR;
1971 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1973 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1980 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1982 call_body((OP*)&myop, FALSE);
1984 retval = PL_stack_sp - (PL_stack_base + oldmark);
1985 if (!(flags & G_KEEPERR))
1992 /* my_exit() was called */
1993 PL_curstash = PL_defstash;
1996 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1997 Perl_croak(aTHX_ "Callback called exit");
2002 PL_op = PL_restartop;
2006 PL_stack_sp = PL_stack_base + oldmark;
2007 if (flags & G_ARRAY)
2011 *++PL_stack_sp = &PL_sv_undef;
2016 if (PL_scopestack_ix > oldscope) {
2020 register PERL_CONTEXT *cx;
2032 if (flags & G_DISCARD) {
2033 PL_stack_sp = PL_stack_base + oldmark;
2042 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2044 S_vcall_body(pTHX_ va_list args)
2046 OP *myop = va_arg(args, OP*);
2047 int is_eval = va_arg(args, int);
2049 call_body(myop, is_eval);
2055 S_call_body(pTHX_ OP *myop, int is_eval)
2057 if (PL_op == myop) {
2059 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2061 PL_op = Perl_pp_entersub(aTHX); /* this does */
2067 /* Eval a string. The G_EVAL flag is always assumed. */
2070 =for apidoc p||eval_sv
2072 Tells Perl to C<eval> the string in the SV.
2078 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2080 /* See G_* flags in cop.h */
2083 UNOP myop; /* fake syntax tree node */
2084 volatile I32 oldmark = SP - PL_stack_base;
2085 volatile I32 retval = 0;
2091 if (flags & G_DISCARD) {
2098 Zero(PL_op, 1, UNOP);
2099 EXTEND(PL_stack_sp, 1);
2100 *++PL_stack_sp = sv;
2101 oldscope = PL_scopestack_ix;
2103 if (!(flags & G_NOARGS))
2104 myop.op_flags = OPf_STACKED;
2105 myop.op_next = Nullop;
2106 myop.op_type = OP_ENTEREVAL;
2107 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2108 (flags & G_ARRAY) ? OPf_WANT_LIST :
2110 if (flags & G_KEEPERR)
2111 myop.op_flags |= OPf_SPECIAL;
2113 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2115 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2122 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2124 call_body((OP*)&myop,TRUE);
2126 retval = PL_stack_sp - (PL_stack_base + oldmark);
2127 if (!(flags & G_KEEPERR))
2134 /* my_exit() was called */
2135 PL_curstash = PL_defstash;
2138 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2139 Perl_croak(aTHX_ "Callback called exit");
2144 PL_op = PL_restartop;
2148 PL_stack_sp = PL_stack_base + oldmark;
2149 if (flags & G_ARRAY)
2153 *++PL_stack_sp = &PL_sv_undef;
2159 if (flags & G_DISCARD) {
2160 PL_stack_sp = PL_stack_base + oldmark;
2170 =for apidoc p||eval_pv
2172 Tells Perl to C<eval> the given string and return an SV* result.
2178 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2181 SV* sv = newSVpv(p, 0);
2183 eval_sv(sv, G_SCALAR);
2190 if (croak_on_error && SvTRUE(ERRSV)) {
2192 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2198 /* Require a module. */
2201 =head1 Embedding Functions
2203 =for apidoc p||require_pv
2205 Tells Perl to C<require> the file named by the string argument. It is
2206 analogous to the Perl code C<eval "require '$file'">. It's even
2207 implemented that way; consider using load_module instead.
2212 Perl_require_pv(pTHX_ const char *pv)
2216 PUSHSTACKi(PERLSI_REQUIRE);
2218 sv = sv_newmortal();
2219 sv_setpv(sv, "require '");
2222 eval_sv(sv, G_DISCARD);
2228 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2232 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2233 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2237 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2239 /* This message really ought to be max 23 lines.
2240 * Removed -h because the user already knows that option. Others? */
2242 static char *usage_msg[] = {
2243 "-0[octal] specify record separator (\\0, if no argument)",
2244 "-a autosplit mode with -n or -p (splits $_ into @F)",
2245 "-C enable native wide character system interfaces",
2246 "-c check syntax only (runs BEGIN and CHECK blocks)",
2247 "-d[:debugger] run program under debugger",
2248 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2249 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2250 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2251 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2252 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2253 "-l[octal] enable line ending processing, specifies line terminator",
2254 "-[mM][-]module execute `use/no module...' before executing program",
2255 "-n assume 'while (<>) { ... }' loop around program",
2256 "-p assume loop like -n but print line also, like sed",
2257 "-P run program through C preprocessor before compilation",
2258 "-s enable rudimentary parsing for switches after programfile",
2259 "-S look for programfile using PATH environment variable",
2260 "-T enable tainting checks",
2261 "-t enable tainting warnings",
2262 "-u dump core after parsing program",
2263 "-U allow unsafe operations",
2264 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2265 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2266 "-w enable many useful warnings (RECOMMENDED)",
2267 "-W enable all warnings",
2268 "-X disable all warnings",
2269 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2273 char **p = usage_msg;
2275 PerlIO_printf(PerlIO_stdout(),
2276 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2279 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2282 /* convert a string of -D options (or digits) into an int.
2283 * sets *s to point to the char after the options */
2287 Perl_get_debug_opts(pTHX_ char **s)
2291 /* if adding extra options, remember to update DEBUG_MASK */
2292 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2294 for (; isALNUM(**s); (*s)++) {
2295 char *d = strchr(debopts,**s);
2297 i |= 1 << (d - debopts);
2298 else if (ckWARN_d(WARN_DEBUGGING))
2299 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2300 "invalid option -D%c\n", **s);
2305 for (; isALNUM(**s); (*s)++) ;
2308 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2309 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2310 "-Dp not implemented on this platform\n");
2316 /* This routine handles any switches that can be given during run */
2319 Perl_moreswitches(pTHX_ char *s)
2329 SvREFCNT_dec(PL_rs);
2330 if (s[1] == 'x' && s[2]) {
2334 for (s += 2, e = s; *e; e++);
2336 flags = PERL_SCAN_SILENT_ILLDIGIT;
2337 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2338 if (s + numlen < e) {
2339 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2343 PL_rs = newSVpvn("", 0);
2344 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2345 tmps = (U8*)SvPVX(PL_rs);
2346 uvchr_to_utf8(tmps, rschar);
2347 SvCUR_set(PL_rs, UNISKIP(rschar));
2352 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2353 if (rschar & ~((U8)~0))
2354 PL_rs = &PL_sv_undef;
2355 else if (!rschar && numlen >= 2)
2356 PL_rs = newSVpvn("", 0);
2358 char ch = (char)rschar;
2359 PL_rs = newSVpvn(&ch, 1);
2366 PL_unicode = parse_unicode_opts(&s);
2371 while (*s && !isSPACE(*s)) ++s;
2373 PL_splitstr = savepv(PL_splitstr);
2386 /* The following permits -d:Mod to accepts arguments following an =
2387 in the fashion that -MSome::Mod does. */
2388 if (*s == ':' || *s == '=') {
2391 sv = newSVpv("use Devel::", 0);
2393 /* We now allow -d:Module=Foo,Bar */
2394 while(isALNUM(*s) || *s==':') ++s;
2396 sv_catpv(sv, start);
2398 sv_catpvn(sv, start, s-start);
2399 sv_catpv(sv, " split(/,/,q{");
2404 my_setenv("PERL5DB", SvPV(sv, PL_na));
2407 PL_perldb = PERLDB_ALL;
2416 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2417 #else /* !DEBUGGING */
2418 if (ckWARN_d(WARN_DEBUGGING))
2419 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2420 "Recompile perl with -DDEBUGGING to use -D switch\n");
2421 for (s++; isALNUM(*s); s++) ;
2427 usage(PL_origargv[0]);
2431 Safefree(PL_inplace);
2432 #if defined(__CYGWIN__) /* do backup extension automagically */
2433 if (*(s+1) == '\0') {
2434 PL_inplace = savepv(".bak");
2437 #endif /* __CYGWIN__ */
2438 PL_inplace = savepv(s+1);
2440 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2443 if (*s == '-') /* Additional switches on #! line. */
2447 case 'I': /* -I handled both here and in parse_body() */
2450 while (*s && isSPACE(*s))
2455 /* ignore trailing spaces (possibly followed by other switches) */
2457 for (e = p; *e && !isSPACE(*e); e++) ;
2461 } while (*p && *p != '-');
2462 e = savepvn(s, e-s);
2463 incpush(e, TRUE, TRUE, FALSE);
2470 Perl_croak(aTHX_ "No directory specified for -I");
2476 SvREFCNT_dec(PL_ors_sv);
2481 PL_ors_sv = newSVpvn("\n",1);
2482 numlen = 3 + (*s == '0');
2483 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2487 if (RsPARA(PL_rs)) {
2488 PL_ors_sv = newSVpvn("\n\n",2);
2491 PL_ors_sv = newSVsv(PL_rs);
2498 PL_preambleav = newAV();
2500 SV *sv = newSVpv("use assertions::activate split(/,/,q", 0);
2501 sv_catpvn(sv, "\0", 1); /* Use NUL as q//-delimiter. */
2503 sv_catpvn(sv, "\0)", 2);
2505 av_push(PL_preambleav, sv);
2508 av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
2511 forbid_setid("-M"); /* XXX ? */
2514 forbid_setid("-m"); /* XXX ? */
2519 /* -M-foo == 'no foo' */
2520 if (*s == '-') { use = "no "; ++s; }
2521 sv = newSVpv(use,0);
2523 /* We allow -M'Module qw(Foo Bar)' */
2524 while(isALNUM(*s) || *s==':') ++s;
2526 sv_catpv(sv, start);
2527 if (*(start-1) == 'm') {
2529 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2530 sv_catpv( sv, " ()");
2534 Perl_croak(aTHX_ "Module name required with -%c option",
2536 sv_catpvn(sv, start, s-start);
2537 sv_catpv(sv, " split(/,/,q");
2538 sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */
2540 sv_catpvn(sv, "\0)", 2);
2544 PL_preambleav = newAV();
2545 av_push(PL_preambleav, sv);
2548 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2560 PL_doswitches = TRUE;
2574 #ifdef MACOS_TRADITIONAL
2575 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2577 PL_do_undump = TRUE;
2586 PerlIO_printf(PerlIO_stdout(),
2587 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2588 PL_patchlevel, ARCHNAME));
2590 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2591 PerlIO_printf(PerlIO_stdout(),
2592 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2593 PerlIO_printf(PerlIO_stdout(),
2594 Perl_form(aTHX_ " built under %s at %s %s\n",
2595 OSNAME, __DATE__, __TIME__));
2596 PerlIO_printf(PerlIO_stdout(),
2597 Perl_form(aTHX_ " OS Specific Release: %s\n",
2601 #if defined(LOCAL_PATCH_COUNT)
2602 if (LOCAL_PATCH_COUNT > 0)
2603 PerlIO_printf(PerlIO_stdout(),
2604 "\n(with %d registered patch%s, "
2605 "see perl -V for more detail)",
2606 (int)LOCAL_PATCH_COUNT,
2607 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2610 PerlIO_printf(PerlIO_stdout(),
2611 "\n\nCopyright 1987-2003, Larry Wall\n");
2612 #ifdef MACOS_TRADITIONAL
2613 PerlIO_printf(PerlIO_stdout(),
2614 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2615 "maintained by Chris Nandor\n");
2618 PerlIO_printf(PerlIO_stdout(),
2619 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2622 PerlIO_printf(PerlIO_stdout(),
2623 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2624 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2627 PerlIO_printf(PerlIO_stdout(),
2628 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2629 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2632 PerlIO_printf(PerlIO_stdout(),
2633 "atariST series port, ++jrb bammi@cadence.com\n");
2636 PerlIO_printf(PerlIO_stdout(),
2637 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2640 PerlIO_printf(PerlIO_stdout(),
2641 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2644 PerlIO_printf(PerlIO_stdout(),
2645 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2648 PerlIO_printf(PerlIO_stdout(),
2649 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2652 PerlIO_printf(PerlIO_stdout(),
2653 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2656 PerlIO_printf(PerlIO_stdout(),
2657 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2660 PerlIO_printf(PerlIO_stdout(),
2661 "MiNT port by Guido Flohr, 1997-1999\n");
2664 PerlIO_printf(PerlIO_stdout(),
2665 "EPOC port by Olaf Flebbe, 1999-2002\n");
2668 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2669 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2672 #ifdef BINARY_BUILD_NOTICE
2673 BINARY_BUILD_NOTICE;
2675 PerlIO_printf(PerlIO_stdout(),
2677 Perl may be copied only under the terms of either the Artistic License or the\n\
2678 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2679 Complete documentation for Perl, including FAQ lists, should be found on\n\
2680 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2681 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2684 if (! (PL_dowarn & G_WARN_ALL_MASK))
2685 PL_dowarn |= G_WARN_ON;
2689 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2690 if (!specialWARN(PL_compiling.cop_warnings))
2691 SvREFCNT_dec(PL_compiling.cop_warnings);
2692 PL_compiling.cop_warnings = pWARN_ALL ;
2696 PL_dowarn = G_WARN_ALL_OFF;
2697 if (!specialWARN(PL_compiling.cop_warnings))
2698 SvREFCNT_dec(PL_compiling.cop_warnings);
2699 PL_compiling.cop_warnings = pWARN_NONE ;
2704 if (s[1] == '-') /* Additional switches on #! line. */
2709 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2715 #ifdef ALTERNATE_SHEBANG
2716 case 'S': /* OS/2 needs -S on "extproc" line. */
2724 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2729 /* compliments of Tom Christiansen */
2731 /* unexec() can be found in the Gnu emacs distribution */
2732 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2735 Perl_my_unexec(pTHX)
2743 prog = newSVpv(BIN_EXP, 0);
2744 sv_catpv(prog, "/perl");
2745 file = newSVpv(PL_origfilename, 0);
2746 sv_catpv(file, ".perldump");
2748 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2749 /* unexec prints msg to stderr in case of failure */
2750 PerlProc_exit(status);
2753 # include <lib$routines.h>
2754 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2756 ABORT(); /* for use with undump */
2761 /* initialize curinterp */
2767 # define PERLVAR(var,type)
2768 # define PERLVARA(var,n,type)
2769 # if defined(PERL_IMPLICIT_CONTEXT)
2770 # if defined(USE_5005THREADS)
2771 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2772 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2773 # else /* !USE_5005THREADS */
2774 # define PERLVARI(var,type,init) aTHX->var = init;
2775 # define PERLVARIC(var,type,init) aTHX->var = init;
2776 # endif /* USE_5005THREADS */
2778 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2779 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2781 # include "intrpvar.h"
2782 # ifndef USE_5005THREADS
2783 # include "thrdvar.h"
2790 # define PERLVAR(var,type)
2791 # define PERLVARA(var,n,type)
2792 # define PERLVARI(var,type,init) PL_##var = init;
2793 # define PERLVARIC(var,type,init) PL_##var = init;
2794 # include "intrpvar.h"
2795 # ifndef USE_5005THREADS
2796 # include "thrdvar.h"
2807 S_init_main_stash(pTHX)
2811 PL_curstash = PL_defstash = newHV();
2812 PL_curstname = newSVpvn("main",4);
2813 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2814 SvREFCNT_dec(GvHV(gv));
2815 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2817 HvNAME(PL_defstash) = savepv("main");
2818 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2819 GvMULTI_on(PL_incgv);
2820 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2821 GvMULTI_on(PL_hintgv);
2822 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2823 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2824 GvMULTI_on(PL_errgv);
2825 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2826 GvMULTI_on(PL_replgv);
2827 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2828 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2829 sv_setpvn(ERRSV, "", 0);
2830 PL_curstash = PL_defstash;
2831 CopSTASH_set(&PL_compiling, PL_defstash);
2832 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2833 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2834 /* We must init $/ before switches are processed. */
2835 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2839 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2843 char *cpp_discard_flag;
2849 PL_origfilename = savepv("-e");
2852 /* if find_script() returns, it returns a malloc()-ed value */
2853 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2855 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2856 char *s = scriptname + 8;
2857 *fdscript = atoi(s);
2861 scriptname = savepv(s + 1);
2862 Safefree(PL_origfilename);
2863 PL_origfilename = scriptname;
2868 CopFILE_free(PL_curcop);
2869 CopFILE_set(PL_curcop, PL_origfilename);
2870 if (strEQ(PL_origfilename,"-"))
2872 if (*fdscript >= 0) {
2873 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2874 # if defined(HAS_FCNTL) && defined(F_SETFD)
2876 /* ensure close-on-exec */
2877 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2880 else if (PL_preprocess) {
2881 char *cpp_cfg = CPPSTDIN;
2882 SV *cpp = newSVpvn("",0);
2883 SV *cmd = NEWSV(0,0);
2885 if (cpp_cfg[0] == 0) /* PERL_MICRO? */
2886 Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined");
2887 if (strEQ(cpp_cfg, "cppstdin"))
2888 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2889 sv_catpv(cpp, cpp_cfg);
2892 sv_catpvn(sv, "-I", 2);
2893 sv_catpv(sv,PRIVLIB_EXP);
2896 DEBUG_P(PerlIO_printf(Perl_debug_log,
2897 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2898 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2900 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2907 cpp_discard_flag = "";
2909 cpp_discard_flag = "-C";
2913 perl = os2_execname(aTHX);
2915 perl = PL_origargv[0];
2919 /* This strips off Perl comments which might interfere with
2920 the C pre-processor, including #!. #line directives are
2921 deliberately stripped to avoid confusion with Perl's version
2922 of #line. FWP played some golf with it so it will fit
2923 into VMS's 255 character buffer.
2926 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2928 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2930 Perl_sv_setpvf(aTHX_ cmd, "\
2931 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2932 perl, quote, code, quote, scriptname, cpp,
2933 cpp_discard_flag, sv, CPPMINUS);
2935 PL_doextract = FALSE;
2936 # ifdef IAMSUID /* actually, this is caught earlier */
2937 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2939 (void)seteuid(PL_uid); /* musn't stay setuid root */
2941 # ifdef HAS_SETREUID
2942 (void)setreuid((Uid_t)-1, PL_uid);
2944 # ifdef HAS_SETRESUID
2945 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2947 PerlProc_setuid(PL_uid);
2951 if (PerlProc_geteuid() != PL_uid)
2952 Perl_croak(aTHX_ "Can't do seteuid!\n");
2954 # endif /* IAMSUID */
2956 DEBUG_P(PerlIO_printf(Perl_debug_log,
2957 "PL_preprocess: cmd=\"%s\"\n",
2960 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2964 else if (!*scriptname) {
2965 forbid_setid("program input from stdin");
2966 PL_rsfp = PerlIO_stdin();
2969 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2970 # if defined(HAS_FCNTL) && defined(F_SETFD)
2972 /* ensure close-on-exec */
2973 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2978 # ifndef IAMSUID /* in case script is not readable before setuid */
2980 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2981 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2985 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2986 BIN_EXP, (int)PERL_REVISION,
2988 (int)PERL_SUBVERSION), PL_origargv);
2990 Perl_croak(aTHX_ "Can't do setuid\n");
2996 Perl_croak(aTHX_ "Permission denied\n");
2998 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2999 CopFILE(PL_curcop), Strerror(errno));
3005 * I_SYSSTATVFS HAS_FSTATVFS
3007 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
3008 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
3009 * here so that metaconfig picks them up. */
3013 S_fd_on_nosuid_fs(pTHX_ int fd)
3015 int check_okay = 0; /* able to do all the required sys/libcalls */
3016 int on_nosuid = 0; /* the fd is on a nosuid fs */
3018 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3019 * fstatvfs() is UNIX98.
3020 * fstatfs() is 4.3 BSD.
3021 * ustat()+getmnt() is pre-4.3 BSD.
3022 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3023 * an irrelevant filesystem while trying to reach the right one.
3026 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3028 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3029 defined(HAS_FSTATVFS)
3030 # define FD_ON_NOSUID_CHECK_OKAY
3031 struct statvfs stfs;
3033 check_okay = fstatvfs(fd, &stfs) == 0;
3034 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3035 # endif /* fstatvfs */
3037 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3038 defined(PERL_MOUNT_NOSUID) && \
3039 defined(HAS_FSTATFS) && \
3040 defined(HAS_STRUCT_STATFS) && \
3041 defined(HAS_STRUCT_STATFS_F_FLAGS)
3042 # define FD_ON_NOSUID_CHECK_OKAY
3045 check_okay = fstatfs(fd, &stfs) == 0;
3046 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3047 # endif /* fstatfs */
3049 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3050 defined(PERL_MOUNT_NOSUID) && \
3051 defined(HAS_FSTAT) && \
3052 defined(HAS_USTAT) && \
3053 defined(HAS_GETMNT) && \
3054 defined(HAS_STRUCT_FS_DATA) && \
3056 # define FD_ON_NOSUID_CHECK_OKAY
3059 if (fstat(fd, &fdst) == 0) {
3061 if (ustat(fdst.st_dev, &us) == 0) {
3063 /* NOSTAT_ONE here because we're not examining fields which
3064 * vary between that case and STAT_ONE. */
3065 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3066 size_t cmplen = sizeof(us.f_fname);
3067 if (sizeof(fsd.fd_req.path) < cmplen)
3068 cmplen = sizeof(fsd.fd_req.path);
3069 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3070 fdst.st_dev == fsd.fd_req.dev) {
3072 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3078 # endif /* fstat+ustat+getmnt */
3080 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3081 defined(HAS_GETMNTENT) && \
3082 defined(HAS_HASMNTOPT) && \
3083 defined(MNTOPT_NOSUID)
3084 # define FD_ON_NOSUID_CHECK_OKAY
3085 FILE *mtab = fopen("/etc/mtab", "r");
3086 struct mntent *entry;
3089 if (mtab && (fstat(fd, &stb) == 0)) {
3090 while (entry = getmntent(mtab)) {
3091 if (stat(entry->mnt_dir, &fsb) == 0
3092 && fsb.st_dev == stb.st_dev)
3094 /* found the filesystem */
3096 if (hasmntopt(entry, MNTOPT_NOSUID))
3099 } /* A single fs may well fail its stat(). */
3104 # endif /* getmntent+hasmntopt */
3107 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3110 #endif /* IAMSUID */
3113 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3119 /* do we need to emulate setuid on scripts? */
3121 /* This code is for those BSD systems that have setuid #! scripts disabled
3122 * in the kernel because of a security problem. Merely defining DOSUID
3123 * in perl will not fix that problem, but if you have disabled setuid
3124 * scripts in the kernel, this will attempt to emulate setuid and setgid
3125 * on scripts that have those now-otherwise-useless bits set. The setuid
3126 * root version must be called suidperl or sperlN.NNN. If regular perl
3127 * discovers that it has opened a setuid script, it calls suidperl with
3128 * the same argv that it had. If suidperl finds that the script it has
3129 * just opened is NOT setuid root, it sets the effective uid back to the
3130 * uid. We don't just make perl setuid root because that loses the
3131 * effective uid we had before invoking perl, if it was different from the
3134 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3135 * be defined in suidperl only. suidperl must be setuid root. The
3136 * Configure script will set this up for you if you want it.
3142 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3143 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3144 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3149 #ifndef HAS_SETREUID
3150 /* On this access check to make sure the directories are readable,
3151 * there is actually a small window that the user could use to make
3152 * filename point to an accessible directory. So there is a faint
3153 * chance that someone could execute a setuid script down in a
3154 * non-accessible directory. I don't know what to do about that.
3155 * But I don't think it's too important. The manual lies when
3156 * it says access() is useful in setuid programs.
3158 if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/
3160 Perl_croak(aTHX_ "Permission denied\n");
3163 /* If we can swap euid and uid, then we can determine access rights
3164 * with a simple stat of the file, and then compare device and
3165 * inode to make sure we did stat() on the same file we opened.
3166 * Then we just have to make sure he or she can execute it.
3173 setreuid(PL_euid,PL_uid) < 0
3176 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
3179 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
3180 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
3181 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0) {
3183 Perl_croak(aTHX_ "Permission denied\n"); /* testing full pathname here */
3185 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3186 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) {
3188 Perl_croak(aTHX_ "Permission denied\n");
3191 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3192 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3193 (void)PerlIO_close(PL_rsfp);
3195 Perl_croak(aTHX_ "Permission denied\n");
3199 setreuid(PL_uid,PL_euid) < 0
3201 # if defined(HAS_SETRESUID)
3202 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3205 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3206 Perl_croak(aTHX_ "Can't reswap uid and euid");
3207 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3208 Perl_croak(aTHX_ "Permission denied\n");
3210 #endif /* HAS_SETREUID */
3211 #endif /* IAMSUID */
3213 if (!S_ISREG(PL_statbuf.st_mode)) {
3215 Perl_croak(aTHX_ "Permission denied\n");
3217 if (PL_statbuf.st_mode & S_IWOTH)
3218 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3219 PL_doswitches = FALSE; /* -s is insecure in suid */
3220 CopLINE_inc(PL_curcop);
3221 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3222 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3223 Perl_croak(aTHX_ "No #! line");
3224 s = SvPV(PL_linestr,n_a)+2;
3226 while (!isSPACE(*s)) s++;
3227 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3228 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3229 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3230 Perl_croak(aTHX_ "Not a perl script");
3231 while (*s == ' ' || *s == '\t') s++;
3233 * #! arg must be what we saw above. They can invoke it by
3234 * mentioning suidperl explicitly, but they may not add any strange
3235 * arguments beyond what #! says if they do invoke suidperl that way.
3237 len = strlen(validarg);
3238 if (strEQ(validarg," PHOOEY ") ||
3239 strnNE(s,validarg,len) || !isSPACE(s[len]))
3240 Perl_croak(aTHX_ "Args must match #! line");
3243 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3244 PL_euid == PL_statbuf.st_uid)
3246 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3247 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3248 #endif /* IAMSUID */
3250 if (PL_euid) { /* oops, we're not the setuid root perl */
3251 (void)PerlIO_close(PL_rsfp);
3255 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3256 (int)PERL_REVISION, (int)PERL_VERSION,
3257 (int)PERL_SUBVERSION), PL_origargv);
3260 Perl_croak(aTHX_ "Can't do setuid\n");
3263 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3265 (void)setegid(PL_statbuf.st_gid);
3268 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3270 #ifdef HAS_SETRESGID
3271 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3273 PerlProc_setgid(PL_statbuf.st_gid);
3277 if (PerlProc_getegid() != PL_statbuf.st_gid)
3278 Perl_croak(aTHX_ "Can't do setegid!\n");
3280 if (PL_statbuf.st_mode & S_ISUID) {
3281 if (PL_statbuf.st_uid != PL_euid)
3283 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3286 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3288 #ifdef HAS_SETRESUID
3289 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3291 PerlProc_setuid(PL_statbuf.st_uid);
3295 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3296 Perl_croak(aTHX_ "Can't do seteuid!\n");
3298 else if (PL_uid) { /* oops, mustn't run as root */
3300 (void)seteuid((Uid_t)PL_uid);
3303 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3305 #ifdef HAS_SETRESUID
3306 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3308 PerlProc_setuid((Uid_t)PL_uid);
3312 if (PerlProc_geteuid() != PL_uid)
3313 Perl_croak(aTHX_ "Can't do seteuid!\n");
3316 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3317 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3320 else if (PL_preprocess)
3321 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3322 else if (fdscript >= 0)
3323 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3326 Perl_croak(aTHX_ "Permission denied\n");
3329 /* We absolutely must clear out any saved ids here, so we */
3330 /* exec the real perl, substituting fd script for scriptname. */
3331 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3332 PerlIO_rewind(PL_rsfp);
3333 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3334 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3335 if (!PL_origargv[which]) {
3337 Perl_croak(aTHX_ "Permission denied\n");
3339 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3340 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3341 #if defined(HAS_FCNTL) && defined(F_SETFD)
3342 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3345 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3346 (int)PERL_REVISION, (int)PERL_VERSION,
3347 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3349 Perl_croak(aTHX_ "Can't do setuid\n");
3350 #endif /* IAMSUID */
3352 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3353 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3354 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3355 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3357 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3360 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3361 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3362 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3363 /* not set-id, must be wrapped */
3369 S_find_beginning(pTHX)
3371 register char *s, *s2;
3372 #ifdef MACOS_TRADITIONAL
3376 /* skip forward in input to the real script? */
3379 #ifdef MACOS_TRADITIONAL
3380 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3382 while (PL_doextract || gMacPerl_AlwaysExtract) {
3383 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3384 if (!gMacPerl_AlwaysExtract)
3385 Perl_croak(aTHX_ "No Perl script found in input\n");
3387 if (PL_doextract) /* require explicit override ? */
3388 if (!OverrideExtract(PL_origfilename))
3389 Perl_croak(aTHX_ "User aborted script\n");
3391 PL_doextract = FALSE;
3393 /* Pater peccavi, file does not have #! */
3394 PerlIO_rewind(PL_rsfp);
3399 while (PL_doextract) {
3400 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3401 Perl_croak(aTHX_ "No Perl script found in input\n");
3404 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3405 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3406 PL_doextract = FALSE;
3407 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3409 while (*s == ' ' || *s == '\t') s++;
3411 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3412 if (strnEQ(s2-4,"perl",4))
3414 while ((s = moreswitches(s)))
3417 #ifdef MACOS_TRADITIONAL
3418 /* We are always searching for the #!perl line in MacPerl,
3419 * so if we find it, still keep the line count correct
3420 * by counting lines we already skipped over
3422 for (; maclines > 0 ; maclines--)
3423 PerlIO_ungetc(PL_rsfp, '\n');
3427 /* gMacPerl_AlwaysExtract is false in MPW tool */
3428 } else if (gMacPerl_AlwaysExtract) {
3439 PL_uid = PerlProc_getuid();
3440 PL_euid = PerlProc_geteuid();
3441 PL_gid = PerlProc_getgid();
3442 PL_egid = PerlProc_getegid();
3444 PL_uid |= PL_gid << 16;
3445 PL_euid |= PL_egid << 16;
3447 /* Should not happen: */
3448 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3449 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3452 /* This is used very early in the lifetime of the program,
3453 * before even the options are parsed, so PL_tainting has
3454 * not been initialized properly. */
3456 Perl_doing_taint(int argc, char *argv[], char *envp[])
3458 #ifndef PERL_IMPLICIT_SYS
3459 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3460 * before we have an interpreter-- and the whole point of this
3461 * function is to be called at such an early stage. If you are on
3462 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3463 * "tainted because running with altered effective ids', you'll
3464 * have to add your own checks somewhere in here. The two most
3465 * known samples of 'implicitness' are Win32 and NetWare, neither
3466 * of which has much of concept of 'uids'. */
3467 int uid = PerlProc_getuid();
3468 int euid = PerlProc_geteuid();
3469 int gid = PerlProc_getgid();
3470 int egid = PerlProc_getegid();
3476 if (uid && (euid != uid || egid != gid))
3478 #endif /* !PERL_IMPLICIT_SYS */
3479 /* This is a really primitive check; environment gets ignored only
3480 * if -T are the first chars together; otherwise one gets
3481 * "Too late" message. */
3482 if ( argc > 1 && argv[1][0] == '-'
3483 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3489 S_forbid_setid(pTHX_ char *s)
3491 if (PL_euid != PL_uid)
3492 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3493 if (PL_egid != PL_gid)
3494 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3498 Perl_init_debugger(pTHX)
3500 HV *ostash = PL_curstash;
3502 PL_curstash = PL_debstash;
3503 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3504 AvREAL_off(PL_dbargs);
3505 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3506 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3507 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3508 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3509 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3510 sv_setiv(PL_DBsingle, 0);
3511 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3512 sv_setiv(PL_DBtrace, 0);
3513 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3514 sv_setiv(PL_DBsignal, 0);
3515 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3516 sv_setiv(PL_DBassertion, 0);
3517 PL_curstash = ostash;
3520 #ifndef STRESS_REALLOC
3521 #define REASONABLE(size) (size)
3523 #define REASONABLE(size) (1) /* unreasonable */
3527 Perl_init_stacks(pTHX)
3529 /* start with 128-item stack and 8K cxstack */
3530 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3531 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3532 PL_curstackinfo->si_type = PERLSI_MAIN;
3533 PL_curstack = PL_curstackinfo->si_stack;
3534 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3536 PL_stack_base = AvARRAY(PL_curstack);
3537 PL_stack_sp = PL_stack_base;
3538 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3540 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3543 PL_tmps_max = REASONABLE(128);
3545 New(54,PL_markstack,REASONABLE(32),I32);
3546 PL_markstack_ptr = PL_markstack;
3547 PL_markstack_max = PL_markstack + REASONABLE(32);
3551 New(54,PL_scopestack,REASONABLE(32),I32);
3552 PL_scopestack_ix = 0;
3553 PL_scopestack_max = REASONABLE(32);
3555 New(54,PL_savestack,REASONABLE(128),ANY);
3556 PL_savestack_ix = 0;
3557 PL_savestack_max = REASONABLE(128);
3559 New(54,PL_retstack,REASONABLE(16),OP*);
3561 PL_retstack_max = REASONABLE(16);
3569 while (PL_curstackinfo->si_next)
3570 PL_curstackinfo = PL_curstackinfo->si_next;
3571 while (PL_curstackinfo) {
3572 PERL_SI *p = PL_curstackinfo->si_prev;
3573 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3574 Safefree(PL_curstackinfo->si_cxstack);
3575 Safefree(PL_curstackinfo);
3576 PL_curstackinfo = p;
3578 Safefree(PL_tmps_stack);
3579 Safefree(PL_markstack);
3580 Safefree(PL_scopestack);
3581 Safefree(PL_savestack);
3582 Safefree(PL_retstack);
3591 lex_start(PL_linestr);
3593 PL_subname = newSVpvn("main",4);
3597 S_init_predump_symbols(pTHX)
3602 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3603 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3604 GvMULTI_on(PL_stdingv);
3605 io = GvIOp(PL_stdingv);
3606 IoTYPE(io) = IoTYPE_RDONLY;
3607 IoIFP(io) = PerlIO_stdin();
3608 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3610 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3612 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3615 IoTYPE(io) = IoTYPE_WRONLY;
3616 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3618 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3620 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3622 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3623 GvMULTI_on(PL_stderrgv);
3624 io = GvIOp(PL_stderrgv);
3625 IoTYPE(io) = IoTYPE_WRONLY;
3626 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3627 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3629 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3631 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3634 Safefree(PL_osname);
3635 PL_osname = savepv(OSNAME);
3639 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3642 argc--,argv++; /* skip name of script */
3643 if (PL_doswitches) {
3644 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3647 if (argv[0][1] == '-' && !argv[0][2]) {
3651 if ((s = strchr(argv[0], '='))) {
3653 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3656 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3659 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3660 GvMULTI_on(PL_argvgv);
3661 (void)gv_AVadd(PL_argvgv);
3662 av_clear(GvAVn(PL_argvgv));
3663 for (; argc > 0; argc--,argv++) {
3664 SV *sv = newSVpv(argv[0],0);
3665 av_push(GvAVn(PL_argvgv),sv);
3666 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3667 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3670 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3671 (void)sv_utf8_decode(sv);
3676 #ifdef HAS_PROCSELFEXE
3677 /* This is a function so that we don't hold on to MAXPATHLEN
3678 bytes of stack longer than necessary
3681 S_procself_val(pTHX_ SV *sv, char *arg0)
3683 char buf[MAXPATHLEN];
3684 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3686 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3687 includes a spurious NUL which will cause $^X to fail in system
3688 or backticks (this will prevent extensions from being built and
3689 many tests from working). readlink is not meant to add a NUL.
3690 Normal readlink works fine.
3692 if (len > 0 && buf[len-1] == '\0') {
3696 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3697 returning the text "unknown" from the readlink rather than the path
3698 to the executable (or returning an error from the readlink). Any valid
3699 path has a '/' in it somewhere, so use that to validate the result.
3700 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3702 if (len > 0 && memchr(buf, '/', len)) {
3703 sv_setpvn(sv,buf,len);
3709 #endif /* HAS_PROCSELFEXE */
3712 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3718 PL_toptarget = NEWSV(0,0);
3719 sv_upgrade(PL_toptarget, SVt_PVFM);
3720 sv_setpvn(PL_toptarget, "", 0);
3721 PL_bodytarget = NEWSV(0,0);
3722 sv_upgrade(PL_bodytarget, SVt_PVFM);
3723 sv_setpvn(PL_bodytarget, "", 0);
3724 PL_formtarget = PL_bodytarget;
3728 init_argv_symbols(argc,argv);
3730 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3731 #ifdef MACOS_TRADITIONAL
3732 /* $0 is not majick on a Mac */
3733 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3735 sv_setpv(GvSV(tmpgv),PL_origfilename);
3736 magicname("0", "0", 1);
3739 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3740 #ifdef HAS_PROCSELFEXE
3741 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3744 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3746 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3750 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3752 GvMULTI_on(PL_envgv);
3753 hv = GvHVn(PL_envgv);
3754 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3756 #ifdef USE_ENVIRON_ARRAY
3757 /* Note that if the supplied env parameter is actually a copy
3758 of the global environ then it may now point to free'd memory
3759 if the environment has been modified since. To avoid this
3760 problem we treat env==NULL as meaning 'use the default'
3765 # ifdef USE_ITHREADS
3766 && PL_curinterp == aTHX
3770 environ[0] = Nullch;
3773 for (; *env; env++) {
3774 if (!(s = strchr(*env,'=')))
3776 #if defined(MSDOS) && !defined(DJGPP)
3781 sv = newSVpv(s+1, 0);
3782 (void)hv_store(hv, *env, s - *env, sv, 0);
3786 #endif /* USE_ENVIRON_ARRAY */
3787 #endif /* !PERL_MICRO */
3790 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3791 SvREADONLY_off(GvSV(tmpgv));
3792 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3793 SvREADONLY_on(GvSV(tmpgv));
3795 #ifdef THREADS_HAVE_PIDS
3796 PL_ppid = (IV)getppid();
3799 /* touch @F array to prevent spurious warnings 20020415 MJD */
3801 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3803 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3804 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3805 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3809 S_init_perllib(pTHX)
3814 s = PerlEnv_getenv("PERL5LIB");
3816 incpush(s, TRUE, TRUE, TRUE);
3818 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3820 /* Treat PERL5?LIB as a possible search list logical name -- the
3821 * "natural" VMS idiom for a Unix path string. We allow each
3822 * element to be a set of |-separated directories for compatibility.
3826 if (my_trnlnm("PERL5LIB",buf,0))
3827 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3829 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3833 /* Use the ~-expanded versions of APPLLIB (undocumented),
3834 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3837 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3841 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3843 #ifdef MACOS_TRADITIONAL
3846 SV * privdir = NEWSV(55, 0);
3847 char * macperl = PerlEnv_getenv("MACPERL");
3852 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3853 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3854 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3855 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3856 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3857 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3859 SvREFCNT_dec(privdir);
3862 incpush(":", FALSE, FALSE, TRUE);
3865 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3868 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3870 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3874 /* sitearch is always relative to sitelib on Windows for
3875 * DLL-based path intuition to work correctly */
3876 # if !defined(WIN32)
3877 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3883 /* this picks up sitearch as well */
3884 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3886 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3890 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3891 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3894 #ifdef PERL_VENDORARCH_EXP
3895 /* vendorarch is always relative to vendorlib on Windows for
3896 * DLL-based path intuition to work correctly */
3897 # if !defined(WIN32)
3898 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3902 #ifdef PERL_VENDORLIB_EXP
3904 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3906 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3910 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3911 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3914 #ifdef PERL_OTHERLIBDIRS
3915 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3919 incpush(".", FALSE, FALSE, TRUE);
3920 #endif /* MACOS_TRADITIONAL */
3923 #if defined(DOSISH) || defined(EPOC)
3924 # define PERLLIB_SEP ';'
3927 # define PERLLIB_SEP '|'
3929 # if defined(MACOS_TRADITIONAL)
3930 # define PERLLIB_SEP ','
3932 # define PERLLIB_SEP ':'
3936 #ifndef PERLLIB_MANGLE
3937 # define PERLLIB_MANGLE(s,n) (s)
3941 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3943 SV *subdir = Nullsv;
3948 if (addsubdirs || addoldvers) {
3949 subdir = sv_newmortal();
3952 /* Break at all separators */
3954 SV *libdir = NEWSV(55,0);
3957 /* skip any consecutive separators */
3959 while ( *p == PERLLIB_SEP ) {
3960 /* Uncomment the next line for PATH semantics */
3961 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3966 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3967 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3972 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3973 p = Nullch; /* break out */
3975 #ifdef MACOS_TRADITIONAL
3976 if (!strchr(SvPVX(libdir), ':')) {
3979 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3981 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3982 sv_catpv(libdir, ":");
3986 * BEFORE pushing libdir onto @INC we may first push version- and
3987 * archname-specific sub-directories.
3989 if (addsubdirs || addoldvers) {
3990 #ifdef PERL_INC_VERSION_LIST
3991 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3992 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3993 const char **incver;
4000 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
4002 while (unix[len-1] == '/') len--; /* Cosmetic */
4003 sv_usepvn(libdir,unix,len);
4006 PerlIO_printf(Perl_error_log,
4007 "Failed to unixify @INC element \"%s\"\n",
4011 #ifdef MACOS_TRADITIONAL
4012 #define PERL_AV_SUFFIX_FMT ""
4013 #define PERL_ARCH_FMT "%s:"
4014 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
4016 #define PERL_AV_SUFFIX_FMT "/"
4017 #define PERL_ARCH_FMT "/%s"
4018 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
4020 /* .../version/archname if -d .../version/archname */
4021 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
4023 (int)PERL_REVISION, (int)PERL_VERSION,
4024 (int)PERL_SUBVERSION, ARCHNAME);
4025 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4026 S_ISDIR(tmpstatbuf.st_mode))
4027 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4029 /* .../version if -d .../version */
4030 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4031 (int)PERL_REVISION, (int)PERL_VERSION,
4032 (int)PERL_SUBVERSION);
4033 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4034 S_ISDIR(tmpstatbuf.st_mode))
4035 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4037 /* .../archname if -d .../archname */
4038 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4039 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4040 S_ISDIR(tmpstatbuf.st_mode))
4041 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4044 #ifdef PERL_INC_VERSION_LIST
4046 for (incver = incverlist; *incver; incver++) {
4047 /* .../xxx if -d .../xxx */
4048 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4049 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4050 S_ISDIR(tmpstatbuf.st_mode))
4051 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4057 /* finally push this lib directory on the end of @INC */
4058 av_push(GvAVn(PL_incgv), libdir);
4062 #ifdef USE_5005THREADS
4063 STATIC struct perl_thread *
4064 S_init_main_thread(pTHX)
4066 #if !defined(PERL_IMPLICIT_CONTEXT)
4067 struct perl_thread *thr;
4071 Newz(53, thr, 1, struct perl_thread);
4072 PL_curcop = &PL_compiling;
4073 thr->interp = PERL_GET_INTERP;
4074 thr->cvcache = newHV();
4075 thr->threadsv = newAV();
4076 /* thr->threadsvp is set when find_threadsv is called */
4077 thr->specific = newAV();
4078 thr->flags = THRf_R_JOINABLE;
4079 MUTEX_INIT(&thr->mutex);
4080 /* Handcraft thrsv similarly to mess_sv */
4081 New(53, PL_thrsv, 1, SV);
4082 Newz(53, xpv, 1, XPV);
4083 SvFLAGS(PL_thrsv) = SVt_PV;
4084 SvANY(PL_thrsv) = (void*)xpv;
4085 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4086 SvPVX(PL_thrsv) = (char*)thr;
4087 SvCUR_set(PL_thrsv, sizeof(thr));
4088 SvLEN_set(PL_thrsv, sizeof(thr));
4089 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4090 thr->oursv = PL_thrsv;
4091 PL_chopset = " \n-";
4094 MUTEX_LOCK(&PL_threads_mutex);
4100 MUTEX_UNLOCK(&PL_threads_mutex);
4102 #ifdef HAVE_THREAD_INTERN
4103 Perl_init_thread_intern(thr);
4106 #ifdef SET_THREAD_SELF
4107 SET_THREAD_SELF(thr);
4109 thr->self = pthread_self();
4110 #endif /* SET_THREAD_SELF */
4114 * These must come after the thread self setting
4115 * because sv_setpvn does SvTAINT and the taint
4116 * fields thread selfness being set.
4118 PL_toptarget = NEWSV(0,0);
4119 sv_upgrade(PL_toptarget, SVt_PVFM);
4120 sv_setpvn(PL_toptarget, "", 0);
4121 PL_bodytarget = NEWSV(0,0);
4122 sv_upgrade(PL_bodytarget, SVt_PVFM);
4123 sv_setpvn(PL_bodytarget, "", 0);
4124 PL_formtarget = PL_bodytarget;
4125 thr->errsv = newSVpvn("", 0);
4126 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4129 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4130 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4131 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4132 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4133 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4134 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4136 PL_reginterp_cnt = 0;
4140 #endif /* USE_5005THREADS */
4143 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4146 line_t oldline = CopLINE(PL_curcop);
4152 while (AvFILL(paramList) >= 0) {
4153 cv = (CV*)av_shift(paramList);
4155 if (paramList == PL_beginav) {
4156 /* save PL_beginav for compiler */
4157 if (! PL_beginav_save)
4158 PL_beginav_save = newAV();
4159 av_push(PL_beginav_save, (SV*)cv);
4161 else if (paramList == PL_checkav) {
4162 /* save PL_checkav for compiler */
4163 if (! PL_checkav_save)
4164 PL_checkav_save = newAV();
4165 av_push(PL_checkav_save, (SV*)cv);
4170 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4171 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4177 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4181 (void)SvPV(atsv, len);
4183 PL_curcop = &PL_compiling;
4184 CopLINE_set(PL_curcop, oldline);
4185 if (paramList == PL_beginav)
4186 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4188 Perl_sv_catpvf(aTHX_ atsv,
4189 "%s failed--call queue aborted",
4190 paramList == PL_checkav ? "CHECK"
4191 : paramList == PL_initav ? "INIT"
4193 while (PL_scopestack_ix > oldscope)
4196 Perl_croak(aTHX_ "%"SVf"", atsv);
4203 /* my_exit() was called */
4204 while (PL_scopestack_ix > oldscope)
4207 PL_curstash = PL_defstash;
4208 PL_curcop = &PL_compiling;
4209 CopLINE_set(PL_curcop, oldline);
4211 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4212 if (paramList == PL_beginav)
4213 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4215 Perl_croak(aTHX_ "%s failed--call queue aborted",
4216 paramList == PL_checkav ? "CHECK"
4217 : paramList == PL_initav ? "INIT"
4224 PL_curcop = &PL_compiling;
4225 CopLINE_set(PL_curcop, oldline);
4228 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4236 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4238 S_vcall_list_body(pTHX_ va_list args)
4240 CV *cv = va_arg(args, CV*);
4241 return call_list_body(cv);
4246 S_call_list_body(pTHX_ CV *cv)
4248 PUSHMARK(PL_stack_sp);
4249 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4254 Perl_my_exit(pTHX_ U32 status)
4256 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4257 thr, (unsigned long) status));
4266 STATUS_NATIVE_SET(status);
4273 Perl_my_failure_exit(pTHX)
4276 if (vaxc$errno & 1) {
4277 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4278 STATUS_NATIVE_SET(44);
4281 if (!vaxc$errno && errno) /* unlikely */
4282 STATUS_NATIVE_SET(44);
4284 STATUS_NATIVE_SET(vaxc$errno);
4289 STATUS_POSIX_SET(errno);
4291 exitstatus = STATUS_POSIX >> 8;
4292 if (exitstatus & 255)
4293 STATUS_POSIX_SET(exitstatus);
4295 STATUS_POSIX_SET(255);
4302 S_my_exit_jump(pTHX)
4304 register PERL_CONTEXT *cx;
4309 SvREFCNT_dec(PL_e_script);
4310 PL_e_script = Nullsv;
4313 POPSTACK_TO(PL_mainstack);
4314 if (cxstack_ix >= 0) {
4317 POPBLOCK(cx,PL_curpm);
4325 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4328 p = SvPVX(PL_e_script);
4329 nl = strchr(p, '\n');
4330 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4332 filter_del(read_e_script);
4335 sv_catpvn(buf_sv, p, nl-p);
4336 sv_chop(PL_e_script, nl);