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;
186 PL_sighandlerp = Perl_sighandler;
187 PL_pidstatus = newHV();
190 PL_rs = newSVpvn("\n", 1);
195 PL_lex_state = LEX_NOTPARSING;
201 SET_NUMERIC_STANDARD();
205 PL_patchlevel = NEWSV(0,4);
206 (void)SvUPGRADE(PL_patchlevel, SVt_PVNV);
207 if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
208 SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1);
209 s = (U8*)SvPVX(PL_patchlevel);
210 /* Build version strings using "native" characters */
211 s = uvchr_to_utf8(s, (UV)PERL_REVISION);
212 s = uvchr_to_utf8(s, (UV)PERL_VERSION);
213 s = uvchr_to_utf8(s, (UV)PERL_SUBVERSION);
215 SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
216 SvPOK_on(PL_patchlevel);
217 SvNVX(PL_patchlevel) = (NV)PERL_REVISION +
218 ((NV)PERL_VERSION / (NV)1000) +
219 ((NV)PERL_SUBVERSION / (NV)1000000);
220 SvNOK_on(PL_patchlevel); /* dual valued */
221 SvUTF8_on(PL_patchlevel);
222 SvREADONLY_on(PL_patchlevel);
225 #if defined(LOCAL_PATCH_COUNT)
226 PL_localpatches = local_patches; /* For possible -v */
229 #ifdef HAVE_INTERP_INTERN
233 PerlIO_init(aTHX); /* Hook to IO system */
235 PL_fdpid = newAV(); /* for remembering popen pids by fd */
236 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
237 PL_errors = newSVpvn("",0);
238 sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
239 sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
240 sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
242 PL_regex_padav = newAV();
243 av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */
244 PL_regex_pad = AvARRAY(PL_regex_padav);
246 #ifdef USE_REENTRANT_API
247 Perl_reentrant_init(aTHX);
250 /* Note that strtab is a rather special HV. Assumptions are made
251 about not iterating on it, and not adding tie magic to it.
252 It is properly deallocated in perl_destruct() */
255 HvSHAREKEYS_off(PL_strtab); /* mandatory */
256 hv_ksplit(PL_strtab, 512);
258 #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
259 _dyld_lookup_and_bind
260 ("__environ", (unsigned long *) &environ_pointer, NULL);
263 #ifdef USE_ENVIRON_ARRAY
264 PL_origenviron = environ;
267 /* Use sysconf(_SC_CLK_TCK) if available, if not
268 * available or if the sysconf() fails, use the HZ. */
269 #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
270 PL_clocktick = sysconf(_SC_CLK_TCK);
271 if (PL_clocktick <= 0)
275 PL_stashcache = newHV();
281 =for apidoc nothreadhook
283 Stub that provides thread hook for perl_destruct when there are
290 Perl_nothreadhook(pTHX)
296 =for apidoc perl_destruct
298 Shuts down a Perl interpreter. See L<perlembed>.
306 volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */
308 #ifdef USE_5005THREADS
310 #endif /* USE_5005THREADS */
312 /* wait for all pseudo-forked children to finish */
313 PERL_WAIT_FOR_CHILDREN;
315 destruct_level = PL_perl_destruct_level;
319 if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) {
321 if (destruct_level < i)
328 if(PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
333 if (PL_endav && !PL_minus_c)
334 call_list(PL_scopestack_ix, PL_endav);
340 /* Need to flush since END blocks can produce output */
343 if (CALL_FPTR(PL_threadhook)(aTHX)) {
344 /* Threads hook has vetoed further cleanup */
345 return STATUS_NATIVE_EXPORT;
348 /* We must account for everything. */
350 /* Destroy the main CV and syntax tree */
352 op_free(PL_main_root);
353 PL_main_root = Nullop;
355 PL_curcop = &PL_compiling;
356 PL_main_start = Nullop;
357 SvREFCNT_dec(PL_main_cv);
361 /* Tell PerlIO we are about to tear things apart in case
362 we have layers which are using resources that should
366 PerlIO_destruct(aTHX);
368 if (PL_sv_objcount) {
370 * Try to destruct global references. We do this first so that the
371 * destructors and destructees still exist. Some sv's might remain.
372 * Non-referenced objects are on their own.
377 /* unhook hooks which will soon be, or use, destroyed data */
378 SvREFCNT_dec(PL_warnhook);
379 PL_warnhook = Nullsv;
380 SvREFCNT_dec(PL_diehook);
383 /* call exit list functions */
384 while (PL_exitlistlen-- > 0)
385 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
387 Safefree(PL_exitlist);
392 if (destruct_level == 0){
394 DEBUG_P(debprofdump());
396 #if defined(PERLIO_LAYERS)
397 /* No more IO - including error messages ! */
398 PerlIO_cleanup(aTHX);
401 /* The exit() function will do everything that needs doing. */
402 return STATUS_NATIVE_EXPORT;
405 /* jettison our possibly duplicated environment */
406 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
407 * so we certainly shouldn't free it here
409 #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
410 if (environ != PL_origenviron
412 /* only main thread can free environ[0] contents */
413 && PL_curinterp == aTHX
419 for (i = 0; environ[i]; i++)
420 safesysfree(environ[i]);
422 /* Must use safesysfree() when working with environ. */
423 safesysfree(environ);
425 environ = PL_origenviron;
430 /* the syntax tree is shared between clones
431 * so op_free(PL_main_root) only ReREFCNT_dec's
432 * REGEXPs in the parent interpreter
433 * we need to manually ReREFCNT_dec for the clones
436 I32 i = AvFILLp(PL_regex_padav) + 1;
437 SV **ary = AvARRAY(PL_regex_padav);
441 REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv));
443 if (SvFLAGS(resv) & SVf_BREAK) {
444 /* this is PL_reg_curpm, already freed
445 * flag is set in regexec.c:S_regtry
447 SvFLAGS(resv) &= ~SVf_BREAK;
449 else if(SvREPADTMP(resv)) {
450 SvREPADTMP_off(resv);
457 SvREFCNT_dec(PL_regex_padav);
458 PL_regex_padav = Nullav;
462 SvREFCNT_dec((SV*) PL_stashcache);
463 PL_stashcache = NULL;
465 /* loosen bonds of global variables */
468 (void)PerlIO_close(PL_rsfp);
472 /* Filters for program text */
473 SvREFCNT_dec(PL_rsfp_filters);
474 PL_rsfp_filters = Nullav;
477 PL_preprocess = FALSE;
483 PL_doswitches = FALSE;
484 PL_dowarn = G_WARN_OFF;
485 PL_doextract = FALSE;
486 PL_sawampersand = FALSE; /* must save all match strings */
489 Safefree(PL_inplace);
491 SvREFCNT_dec(PL_patchlevel);
494 SvREFCNT_dec(PL_e_script);
495 PL_e_script = Nullsv;
498 /* magical thingies */
500 SvREFCNT_dec(PL_ofs_sv); /* $, */
503 SvREFCNT_dec(PL_ors_sv); /* $\ */
506 SvREFCNT_dec(PL_rs); /* $/ */
509 PL_multiline = 0; /* $* */
510 Safefree(PL_osname); /* $^O */
513 SvREFCNT_dec(PL_statname);
514 PL_statname = Nullsv;
517 /* defgv, aka *_ should be taken care of elsewhere */
519 /* clean up after study() */
520 SvREFCNT_dec(PL_lastscream);
521 PL_lastscream = Nullsv;
522 Safefree(PL_screamfirst);
524 Safefree(PL_screamnext);
528 Safefree(PL_efloatbuf);
529 PL_efloatbuf = Nullch;
532 /* startup and shutdown function lists */
533 SvREFCNT_dec(PL_beginav);
534 SvREFCNT_dec(PL_beginav_save);
535 SvREFCNT_dec(PL_endav);
536 SvREFCNT_dec(PL_checkav);
537 SvREFCNT_dec(PL_checkav_save);
538 SvREFCNT_dec(PL_initav);
540 PL_beginav_save = Nullav;
543 PL_checkav_save = Nullav;
546 /* shortcuts just get cleared */
552 PL_argvoutgv = Nullgv;
554 PL_stderrgv = Nullgv;
555 PL_last_in_gv = Nullgv;
557 PL_debstash = Nullhv;
559 /* reset so print() ends up where we expect */
562 SvREFCNT_dec(PL_argvout_stack);
563 PL_argvout_stack = Nullav;
565 SvREFCNT_dec(PL_modglobal);
566 PL_modglobal = Nullhv;
567 SvREFCNT_dec(PL_preambleav);
568 PL_preambleav = Nullav;
569 SvREFCNT_dec(PL_subname);
571 SvREFCNT_dec(PL_linestr);
573 SvREFCNT_dec(PL_pidstatus);
574 PL_pidstatus = Nullhv;
575 SvREFCNT_dec(PL_toptarget);
576 PL_toptarget = Nullsv;
577 SvREFCNT_dec(PL_bodytarget);
578 PL_bodytarget = Nullsv;
579 PL_formtarget = Nullsv;
581 /* free locale stuff */
582 #ifdef USE_LOCALE_COLLATE
583 Safefree(PL_collation_name);
584 PL_collation_name = Nullch;
587 #ifdef USE_LOCALE_NUMERIC
588 Safefree(PL_numeric_name);
589 PL_numeric_name = Nullch;
590 SvREFCNT_dec(PL_numeric_radix_sv);
593 /* clear utf8 character classes */
594 SvREFCNT_dec(PL_utf8_alnum);
595 SvREFCNT_dec(PL_utf8_alnumc);
596 SvREFCNT_dec(PL_utf8_ascii);
597 SvREFCNT_dec(PL_utf8_alpha);
598 SvREFCNT_dec(PL_utf8_space);
599 SvREFCNT_dec(PL_utf8_cntrl);
600 SvREFCNT_dec(PL_utf8_graph);
601 SvREFCNT_dec(PL_utf8_digit);
602 SvREFCNT_dec(PL_utf8_upper);
603 SvREFCNT_dec(PL_utf8_lower);
604 SvREFCNT_dec(PL_utf8_print);
605 SvREFCNT_dec(PL_utf8_punct);
606 SvREFCNT_dec(PL_utf8_xdigit);
607 SvREFCNT_dec(PL_utf8_mark);
608 SvREFCNT_dec(PL_utf8_toupper);
609 SvREFCNT_dec(PL_utf8_totitle);
610 SvREFCNT_dec(PL_utf8_tolower);
611 SvREFCNT_dec(PL_utf8_tofold);
612 SvREFCNT_dec(PL_utf8_idstart);
613 SvREFCNT_dec(PL_utf8_idcont);
614 PL_utf8_alnum = Nullsv;
615 PL_utf8_alnumc = Nullsv;
616 PL_utf8_ascii = Nullsv;
617 PL_utf8_alpha = Nullsv;
618 PL_utf8_space = Nullsv;
619 PL_utf8_cntrl = Nullsv;
620 PL_utf8_graph = Nullsv;
621 PL_utf8_digit = Nullsv;
622 PL_utf8_upper = Nullsv;
623 PL_utf8_lower = Nullsv;
624 PL_utf8_print = Nullsv;
625 PL_utf8_punct = Nullsv;
626 PL_utf8_xdigit = Nullsv;
627 PL_utf8_mark = Nullsv;
628 PL_utf8_toupper = Nullsv;
629 PL_utf8_totitle = Nullsv;
630 PL_utf8_tolower = Nullsv;
631 PL_utf8_tofold = Nullsv;
632 PL_utf8_idstart = Nullsv;
633 PL_utf8_idcont = Nullsv;
635 if (!specialWARN(PL_compiling.cop_warnings))
636 SvREFCNT_dec(PL_compiling.cop_warnings);
637 PL_compiling.cop_warnings = Nullsv;
638 if (!specialCopIO(PL_compiling.cop_io))
639 SvREFCNT_dec(PL_compiling.cop_io);
640 PL_compiling.cop_io = Nullsv;
641 CopFILE_free(&PL_compiling);
642 CopSTASH_free(&PL_compiling);
644 /* Prepare to destruct main symbol table. */
649 SvREFCNT_dec(PL_curstname);
650 PL_curstname = Nullsv;
652 /* clear queued errors */
653 SvREFCNT_dec(PL_errors);
657 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
658 if (PL_scopestack_ix != 0)
659 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
660 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
661 (long)PL_scopestack_ix);
662 if (PL_savestack_ix != 0)
663 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
664 "Unbalanced saves: %ld more saves than restores\n",
665 (long)PL_savestack_ix);
666 if (PL_tmps_floor != -1)
667 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
668 (long)PL_tmps_floor + 1);
669 if (cxstack_ix != -1)
670 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
671 (long)cxstack_ix + 1);
674 /* Now absolutely destruct everything, somehow or other, loops or no. */
675 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
676 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
678 /* the 2 is for PL_fdpid and PL_strtab */
679 while (PL_sv_count > 2 && sv_clean_all())
682 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
683 SvFLAGS(PL_fdpid) |= SVt_PVAV;
684 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
685 SvFLAGS(PL_strtab) |= SVt_PVHV;
687 AvREAL_off(PL_fdpid); /* no surviving entries */
688 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
691 #ifdef HAVE_INTERP_INTERN
695 /* Destruct the global string table. */
697 /* Yell and reset the HeVAL() slots that are still holding refcounts,
698 * so that sv_free() won't fail on them.
706 max = HvMAX(PL_strtab);
707 array = HvARRAY(PL_strtab);
710 if (hent && ckWARN_d(WARN_INTERNAL)) {
711 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
712 "Unbalanced string table refcount: (%d) for \"%s\"",
713 HeVAL(hent) - Nullsv, HeKEY(hent));
714 HeVAL(hent) = Nullsv;
724 SvREFCNT_dec(PL_strtab);
727 /* free the pointer table used for cloning */
728 ptr_table_free(PL_ptr_table);
731 /* free special SVs */
733 SvREFCNT(&PL_sv_yes) = 0;
734 sv_clear(&PL_sv_yes);
735 SvANY(&PL_sv_yes) = NULL;
736 SvFLAGS(&PL_sv_yes) = 0;
738 SvREFCNT(&PL_sv_no) = 0;
740 SvANY(&PL_sv_no) = NULL;
741 SvFLAGS(&PL_sv_no) = 0;
745 for (i=0; i<=2; i++) {
746 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
747 sv_clear(PERL_DEBUG_PAD(i));
748 SvANY(PERL_DEBUG_PAD(i)) = NULL;
749 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
753 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
754 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
756 #ifdef DEBUG_LEAKING_SCALARS
757 if (PL_sv_count != 0) {
762 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
763 svend = &sva[SvREFCNT(sva)];
764 for (sv = sva + 1; sv < svend; ++sv) {
765 if (SvTYPE(sv) != SVTYPEMASK) {
766 PerlIO_printf(Perl_debug_log, "leaked: 0x%p\n", sv);
774 #if defined(PERLIO_LAYERS)
775 /* No more IO - including error messages ! */
776 PerlIO_cleanup(aTHX);
779 /* sv_undef needs to stay immortal until after PerlIO_cleanup
780 as currently layers use it rather than Nullsv as a marker
781 for no arg - and will try and SvREFCNT_dec it.
783 SvREFCNT(&PL_sv_undef) = 0;
784 SvREADONLY_off(&PL_sv_undef);
786 Safefree(PL_origfilename);
787 Safefree(PL_reg_start_tmp);
789 Safefree(PL_reg_curpm);
790 Safefree(PL_reg_poscache);
792 Safefree(PL_op_mask);
793 Safefree(PL_psig_ptr);
794 Safefree(PL_psig_name);
795 Safefree(PL_bitcount);
796 Safefree(PL_psig_pend);
798 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
800 DEBUG_P(debprofdump());
802 #ifdef USE_REENTRANT_API
803 Perl_reentrant_free(aTHX);
808 /* As the absolutely last thing, free the non-arena SV for mess() */
811 /* it could have accumulated taint magic */
812 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
815 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
816 moremagic = mg->mg_moremagic;
817 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
819 Safefree(mg->mg_ptr);
823 /* we know that type >= SVt_PV */
824 (void)SvOOK_off(PL_mess_sv);
825 Safefree(SvPVX(PL_mess_sv));
826 Safefree(SvANY(PL_mess_sv));
827 Safefree(PL_mess_sv);
830 return STATUS_NATIVE_EXPORT;
834 =for apidoc perl_free
836 Releases a Perl interpreter. See L<perlembed>.
844 #if defined(WIN32) || defined(NETWARE)
845 # if defined(PERL_IMPLICIT_SYS)
847 void *host = nw_internal_host;
849 void *host = w32_internal_host;
853 nw_delete_internal_host(host);
855 win32_delete_internal_host(host);
866 Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
868 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
869 PL_exitlist[PL_exitlistlen].fn = fn;
870 PL_exitlist[PL_exitlistlen].ptr = ptr;
875 =for apidoc perl_parse
877 Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
883 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
888 #ifdef USE_5005THREADS
892 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
895 Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
896 setuid perl scripts securely.\n");
900 #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
901 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
902 * This MUST be done before any hash stores or fetches take place. */
904 char *s = PerlEnv_getenv("PERL_HASH_SEED");
906 while (isSPACE(*s)) s++;
907 if (s && isDIGIT(*s))
908 PL_hash_seed = (UV)Atoul(s);
909 #ifndef USE_HASH_SEED_EXPLICIT
911 /* Compute a random seed */
912 (void)seedDrand01((Rand_seed_t)seed());
913 PL_srand_called = TRUE;
914 PL_hash_seed = (UV)(Drand01() * (NV)UV_MAX);
915 #if RANDBITS < (UVSIZE * 8)
916 /* Since there are not enough randbits to to reach all
917 * the bits of a UV, the low bits might need extra
918 * help. Sum in another random number that will
919 * fill in the low bits. */
921 (UV)(Drand01() * (NV)((1 << ((UVSIZE * 8 - RANDBITS))) - 1));
922 #endif /* RANDBITS < (UVSIZE * 8) */
924 #endif /* #ifndef USE_HASH_SEED_EXPLICIT */
925 if ((s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG")))
926 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 */
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)))
980 /* Can we grab env area too to be used as the area for $0? */
981 if (PL_origenviron) {
982 if ((PL_origenviron[0] == s + 1
984 || (PL_origenviron[0] == s + 9 && (s += 8))
989 (PL_origenviron[0] > s &&
991 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
995 s = PL_origenviron[0];
998 my_setenv("NoNe SuCh", Nullch);
999 /* Force copy of environment. */
1000 for (i = 1; PL_origenviron[i]; i++) {
1001 if (PL_origenviron[i] == s + 1
1004 (PL_origenviron[i] > s &&
1005 PL_origenviron[i] <=
1006 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1009 s = PL_origenviron[i];
1017 PL_origalen = s - PL_origargv[0];
1022 /* Come here if running an undumped a.out. */
1024 PL_origfilename = savepv(argv[0]);
1025 PL_do_undump = FALSE;
1026 cxstack_ix = -1; /* start label stack again */
1028 init_postdump_symbols(argc,argv,env);
1033 op_free(PL_main_root);
1034 PL_main_root = Nullop;
1036 PL_main_start = Nullop;
1037 SvREFCNT_dec(PL_main_cv);
1038 PL_main_cv = Nullcv;
1041 oldscope = PL_scopestack_ix;
1042 PL_dowarn = G_WARN_OFF;
1044 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1045 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1051 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1052 parse_body(env,xsinit);
1055 call_list(oldscope, PL_checkav);
1062 /* my_exit() was called */
1063 while (PL_scopestack_ix > oldscope)
1066 PL_curstash = PL_defstash;
1068 call_list(oldscope, PL_checkav);
1069 ret = STATUS_NATIVE_EXPORT;
1072 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1080 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1082 S_vparse_body(pTHX_ va_list args)
1084 char **env = va_arg(args, char**);
1085 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1087 return parse_body(env, xsinit);
1092 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1094 int argc = PL_origargc;
1095 char **argv = PL_origargv;
1096 char *scriptname = NULL;
1098 VOL bool dosearch = FALSE;
1099 char *validarg = "";
1102 char *cddir = Nullch;
1104 sv_setpvn(PL_linestr,"",0);
1105 sv = newSVpvn("",0); /* first used for -I flags */
1109 for (argc--,argv++; argc > 0; argc--,argv++) {
1110 if (argv[0][0] != '-' || !argv[0][1])
1114 validarg = " PHOOEY ";
1122 #ifndef PERL_STRICT_CR
1147 if ((s = moreswitches(s)))
1152 CHECK_MALLOC_TOO_LATE_FOR('t');
1153 if( !PL_tainting ) {
1154 PL_taint_warn = TRUE;
1160 CHECK_MALLOC_TOO_LATE_FOR('T');
1162 PL_taint_warn = FALSE;
1167 #ifdef MACOS_TRADITIONAL
1168 /* ignore -e for Dev:Pseudo argument */
1169 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1172 if (PL_euid != PL_uid || PL_egid != PL_gid)
1173 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1175 PL_e_script = newSVpvn("",0);
1176 filter_add(read_e_script, NULL);
1179 sv_catpv(PL_e_script, s);
1181 sv_catpv(PL_e_script, argv[1]);
1185 Perl_croak(aTHX_ "No code specified for -e");
1186 sv_catpv(PL_e_script, "\n");
1189 case 'I': /* -I handled both here and in moreswitches() */
1191 if (!*++s && (s=argv[1]) != Nullch) {
1196 STRLEN len = strlen(s);
1197 p = savepvn(s, len);
1198 incpush(p, TRUE, TRUE, FALSE);
1199 sv_catpvn(sv, "-I", 2);
1200 sv_catpvn(sv, p, len);
1201 sv_catpvn(sv, " ", 1);
1205 Perl_croak(aTHX_ "No directory specified for -I");
1209 PL_preprocess = TRUE;
1219 PL_preambleav = newAV();
1220 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1222 PL_Sv = newSVpv("print myconfig();",0);
1224 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1226 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1228 sv_catpv(PL_Sv,"\" Compile-time options:");
1230 sv_catpv(PL_Sv," DEBUGGING");
1232 # ifdef MULTIPLICITY
1233 sv_catpv(PL_Sv," MULTIPLICITY");
1235 # ifdef USE_5005THREADS
1236 sv_catpv(PL_Sv," USE_5005THREADS");
1238 # ifdef USE_ITHREADS
1239 sv_catpv(PL_Sv," USE_ITHREADS");
1241 # ifdef USE_64_BIT_INT
1242 sv_catpv(PL_Sv," USE_64_BIT_INT");
1244 # ifdef USE_64_BIT_ALL
1245 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1247 # ifdef USE_LONG_DOUBLE
1248 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1250 # ifdef USE_LARGE_FILES
1251 sv_catpv(PL_Sv," USE_LARGE_FILES");
1254 sv_catpv(PL_Sv," USE_SOCKS");
1256 # ifdef PERL_IMPLICIT_CONTEXT
1257 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1259 # ifdef PERL_IMPLICIT_SYS
1260 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1262 sv_catpv(PL_Sv,"\\n\",");
1264 #if defined(LOCAL_PATCH_COUNT)
1265 if (LOCAL_PATCH_COUNT > 0) {
1267 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1268 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1269 if (PL_localpatches[i])
1270 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1274 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1277 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1279 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1282 sv_catpv(PL_Sv, "; \
1284 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1287 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1290 print \" \\%ENV:\\n @env\\n\" if @env; \
1291 print \" \\@INC:\\n @INC\\n\";");
1294 PL_Sv = newSVpv("config_vars(qw(",0);
1295 sv_catpv(PL_Sv, ++s);
1296 sv_catpv(PL_Sv, "))");
1299 av_push(PL_preambleav, PL_Sv);
1300 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1303 PL_doextract = TRUE;
1311 if (!*++s || isSPACE(*s)) {
1315 /* catch use of gnu style long options */
1316 if (strEQ(s, "version")) {
1320 if (strEQ(s, "help")) {
1327 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1331 sv_setsv(get_sv("/", TRUE), PL_rs);
1334 #ifndef SECURE_INTERNAL_GETENV
1337 (s = PerlEnv_getenv("PERL5OPT")))
1342 if (*s == '-' && *(s+1) == 'T') {
1343 CHECK_MALLOC_TOO_LATE_FOR('T');
1345 PL_taint_warn = FALSE;
1348 char *popt_copy = Nullch;
1361 if (!strchr("DIMUdmtwA", *s))
1362 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1366 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1367 s = popt_copy + (s - popt);
1368 d = popt_copy + (d - popt);
1375 if( !PL_tainting ) {
1376 PL_taint_warn = TRUE;
1386 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1387 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1391 scriptname = argv[0];
1394 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1396 else if (scriptname == Nullch) {
1398 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1406 open_script(scriptname,dosearch,sv,&fdscript);
1408 validate_suid(validarg, scriptname,fdscript);
1411 #if defined(SIGCHLD) || defined(SIGCLD)
1414 # define SIGCHLD SIGCLD
1416 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1417 if (sigstate == SIG_IGN) {
1418 if (ckWARN(WARN_SIGNAL))
1419 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1420 "Can't ignore signal CHLD, forcing to default");
1421 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1427 #ifdef MACOS_TRADITIONAL
1428 if (PL_doextract || gMacPerl_AlwaysExtract) {
1433 if (cddir && PerlDir_chdir(cddir) < 0)
1434 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1438 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1439 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1440 CvUNIQUE_on(PL_compcv);
1442 CvPADLIST(PL_compcv) = pad_new(0);
1443 #ifdef USE_5005THREADS
1444 CvOWNER(PL_compcv) = 0;
1445 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1446 MUTEX_INIT(CvMUTEXP(PL_compcv));
1447 #endif /* USE_5005THREADS */
1450 boot_core_UNIVERSAL();
1452 boot_core_xsutils();
1456 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1458 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1464 # ifdef HAS_SOCKS5_INIT
1465 socks5_init(argv[0]);
1471 init_predump_symbols();
1472 /* init_postdump_symbols not currently designed to be called */
1473 /* more than once (ENV isn't cleared first, for example) */
1474 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1476 init_postdump_symbols(argc,argv,env);
1478 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1479 * PL_utf8locale is conditionally turned on by
1480 * locale.c:Perl_init_i18nl10n() if the environment
1481 * look like the user wants to use UTF-8. */
1483 /* Requires init_predump_symbols(). */
1484 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1489 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1490 * and the default open disciplines. */
1491 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1492 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1494 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1495 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1496 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1498 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1499 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1500 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1502 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1503 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1504 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1505 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1506 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1509 sv_setpvn(sv, ":utf8\0:utf8", 11);
1511 sv_setpvn(sv, ":utf8\0", 6);
1514 sv_setpvn(sv, "\0:utf8", 6);
1520 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1521 if (strEQ(s, "unsafe"))
1522 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1523 else if (strEQ(s, "safe"))
1524 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1526 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1531 /* now parse the script */
1533 SETERRNO(0,SS_NORMAL);
1535 #ifdef MACOS_TRADITIONAL
1536 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1538 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1540 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1541 MacPerl_MPWFileName(PL_origfilename));
1545 if (yyparse() || PL_error_count) {
1547 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1549 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1554 CopLINE_set(PL_curcop, 0);
1555 PL_curstash = PL_defstash;
1556 PL_preprocess = FALSE;
1558 SvREFCNT_dec(PL_e_script);
1559 PL_e_script = Nullsv;
1566 SAVECOPFILE(PL_curcop);
1567 SAVECOPLINE(PL_curcop);
1568 gv_check(PL_defstash);
1575 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1576 dump_mstats("after compilation:");
1585 =for apidoc perl_run
1587 Tells a Perl interpreter to run. See L<perlembed>.
1598 #ifdef USE_5005THREADS
1602 oldscope = PL_scopestack_ix;
1607 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1609 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1615 cxstack_ix = -1; /* start context stack again */
1617 case 0: /* normal completion */
1618 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1623 case 2: /* my_exit() */
1624 while (PL_scopestack_ix > oldscope)
1627 PL_curstash = PL_defstash;
1628 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1629 PL_endav && !PL_minus_c)
1630 call_list(oldscope, PL_endav);
1632 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1633 dump_mstats("after execution: ");
1635 ret = STATUS_NATIVE_EXPORT;
1639 POPSTACK_TO(PL_mainstack);
1642 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1652 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1654 S_vrun_body(pTHX_ va_list args)
1656 I32 oldscope = va_arg(args, I32);
1658 return run_body(oldscope);
1664 S_run_body(pTHX_ I32 oldscope)
1666 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1667 PL_sawampersand ? "Enabling" : "Omitting"));
1669 if (!PL_restartop) {
1670 DEBUG_x(dump_all());
1671 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1672 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1676 #ifdef MACOS_TRADITIONAL
1677 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1678 (gMacPerl_ErrorFormat ? "# " : ""),
1679 MacPerl_MPWFileName(PL_origfilename));
1681 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1685 if (PERLDB_SINGLE && PL_DBsingle)
1686 sv_setiv(PL_DBsingle, 1);
1688 call_list(oldscope, PL_initav);
1694 PL_op = PL_restartop;
1698 else if (PL_main_start) {
1699 CvDEPTH(PL_main_cv) = 1;
1700 PL_op = PL_main_start;
1710 =head1 SV Manipulation Functions
1712 =for apidoc p||get_sv
1714 Returns the SV of the specified Perl scalar. If C<create> is set and the
1715 Perl variable does not exist then it will be created. If C<create> is not
1716 set and the variable does not exist then NULL is returned.
1722 Perl_get_sv(pTHX_ const char *name, I32 create)
1725 #ifdef USE_5005THREADS
1726 if (name[1] == '\0' && !isALPHA(name[0])) {
1727 PADOFFSET tmp = find_threadsv(name);
1728 if (tmp != NOT_IN_PAD)
1729 return THREADSV(tmp);
1731 #endif /* USE_5005THREADS */
1732 gv = gv_fetchpv(name, create, SVt_PV);
1739 =head1 Array Manipulation Functions
1741 =for apidoc p||get_av
1743 Returns the AV of the specified Perl array. If C<create> is set and the
1744 Perl variable does not exist then it will be created. If C<create> is not
1745 set and the variable does not exist then NULL is returned.
1751 Perl_get_av(pTHX_ const char *name, I32 create)
1753 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1762 =head1 Hash Manipulation Functions
1764 =for apidoc p||get_hv
1766 Returns the HV of the specified Perl hash. If C<create> is set and the
1767 Perl variable does not exist then it will be created. If C<create> is not
1768 set and the variable does not exist then NULL is returned.
1774 Perl_get_hv(pTHX_ const char *name, I32 create)
1776 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1785 =head1 CV Manipulation Functions
1787 =for apidoc p||get_cv
1789 Returns the CV of the specified Perl subroutine. If C<create> is set and
1790 the Perl subroutine does not exist then it will be declared (which has the
1791 same effect as saying C<sub name;>). If C<create> is not set and the
1792 subroutine does not exist then NULL is returned.
1798 Perl_get_cv(pTHX_ const char *name, I32 create)
1800 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1801 /* XXX unsafe for threads if eval_owner isn't held */
1802 /* XXX this is probably not what they think they're getting.
1803 * It has the same effect as "sub name;", i.e. just a forward
1805 if (create && !GvCVu(gv))
1806 return newSUB(start_subparse(FALSE, 0),
1807 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1815 /* Be sure to refetch the stack pointer after calling these routines. */
1819 =head1 Callback Functions
1821 =for apidoc p||call_argv
1823 Performs a callback to the specified Perl sub. See L<perlcall>.
1829 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1831 /* See G_* flags in cop.h */
1832 /* null terminated arg list */
1839 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1844 return call_pv(sub_name, flags);
1848 =for apidoc p||call_pv
1850 Performs a callback to the specified Perl sub. See L<perlcall>.
1856 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1857 /* name of the subroutine */
1858 /* See G_* flags in cop.h */
1860 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1864 =for apidoc p||call_method
1866 Performs a callback to the specified Perl method. The blessed object must
1867 be on the stack. See L<perlcall>.
1873 Perl_call_method(pTHX_ const char *methname, I32 flags)
1874 /* name of the subroutine */
1875 /* See G_* flags in cop.h */
1877 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1880 /* May be called with any of a CV, a GV, or an SV containing the name. */
1882 =for apidoc p||call_sv
1884 Performs a callback to the Perl sub whose name is in the SV. See
1891 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1892 /* See G_* flags in cop.h */
1895 LOGOP myop; /* fake syntax tree node */
1898 volatile I32 retval = 0;
1900 bool oldcatch = CATCH_GET;
1905 if (flags & G_DISCARD) {
1910 Zero(&myop, 1, LOGOP);
1911 myop.op_next = Nullop;
1912 if (!(flags & G_NOARGS))
1913 myop.op_flags |= OPf_STACKED;
1914 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1915 (flags & G_ARRAY) ? OPf_WANT_LIST :
1920 EXTEND(PL_stack_sp, 1);
1921 *++PL_stack_sp = sv;
1923 oldscope = PL_scopestack_ix;
1925 if (PERLDB_SUB && PL_curstash != PL_debstash
1926 /* Handle first BEGIN of -d. */
1927 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1928 /* Try harder, since this may have been a sighandler, thus
1929 * curstash may be meaningless. */
1930 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1931 && !(flags & G_NODEBUG))
1932 PL_op->op_private |= OPpENTERSUB_DB;
1934 if (flags & G_METHOD) {
1935 Zero(&method_op, 1, UNOP);
1936 method_op.op_next = PL_op;
1937 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1938 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1939 PL_op = (OP*)&method_op;
1942 if (!(flags & G_EVAL)) {
1944 call_body((OP*)&myop, FALSE);
1945 retval = PL_stack_sp - (PL_stack_base + oldmark);
1946 CATCH_SET(oldcatch);
1949 myop.op_other = (OP*)&myop;
1951 /* we're trying to emulate pp_entertry() here */
1953 register PERL_CONTEXT *cx;
1954 I32 gimme = GIMME_V;
1959 push_return(Nullop);
1960 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1962 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1964 PL_in_eval = EVAL_INEVAL;
1965 if (flags & G_KEEPERR)
1966 PL_in_eval |= EVAL_KEEPERR;
1972 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1974 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1981 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1983 call_body((OP*)&myop, FALSE);
1985 retval = PL_stack_sp - (PL_stack_base + oldmark);
1986 if (!(flags & G_KEEPERR))
1993 /* my_exit() was called */
1994 PL_curstash = PL_defstash;
1997 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1998 Perl_croak(aTHX_ "Callback called exit");
2003 PL_op = PL_restartop;
2007 PL_stack_sp = PL_stack_base + oldmark;
2008 if (flags & G_ARRAY)
2012 *++PL_stack_sp = &PL_sv_undef;
2017 if (PL_scopestack_ix > oldscope) {
2021 register PERL_CONTEXT *cx;
2033 if (flags & G_DISCARD) {
2034 PL_stack_sp = PL_stack_base + oldmark;
2043 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2045 S_vcall_body(pTHX_ va_list args)
2047 OP *myop = va_arg(args, OP*);
2048 int is_eval = va_arg(args, int);
2050 call_body(myop, is_eval);
2056 S_call_body(pTHX_ OP *myop, int is_eval)
2058 if (PL_op == myop) {
2060 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2062 PL_op = Perl_pp_entersub(aTHX); /* this does */
2068 /* Eval a string. The G_EVAL flag is always assumed. */
2071 =for apidoc p||eval_sv
2073 Tells Perl to C<eval> the string in the SV.
2079 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2081 /* See G_* flags in cop.h */
2084 UNOP myop; /* fake syntax tree node */
2085 volatile I32 oldmark = SP - PL_stack_base;
2086 volatile I32 retval = 0;
2092 if (flags & G_DISCARD) {
2099 Zero(PL_op, 1, UNOP);
2100 EXTEND(PL_stack_sp, 1);
2101 *++PL_stack_sp = sv;
2102 oldscope = PL_scopestack_ix;
2104 if (!(flags & G_NOARGS))
2105 myop.op_flags = OPf_STACKED;
2106 myop.op_next = Nullop;
2107 myop.op_type = OP_ENTEREVAL;
2108 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2109 (flags & G_ARRAY) ? OPf_WANT_LIST :
2111 if (flags & G_KEEPERR)
2112 myop.op_flags |= OPf_SPECIAL;
2114 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2116 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2123 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2125 call_body((OP*)&myop,TRUE);
2127 retval = PL_stack_sp - (PL_stack_base + oldmark);
2128 if (!(flags & G_KEEPERR))
2135 /* my_exit() was called */
2136 PL_curstash = PL_defstash;
2139 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2140 Perl_croak(aTHX_ "Callback called exit");
2145 PL_op = PL_restartop;
2149 PL_stack_sp = PL_stack_base + oldmark;
2150 if (flags & G_ARRAY)
2154 *++PL_stack_sp = &PL_sv_undef;
2160 if (flags & G_DISCARD) {
2161 PL_stack_sp = PL_stack_base + oldmark;
2171 =for apidoc p||eval_pv
2173 Tells Perl to C<eval> the given string and return an SV* result.
2179 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2182 SV* sv = newSVpv(p, 0);
2184 eval_sv(sv, G_SCALAR);
2191 if (croak_on_error && SvTRUE(ERRSV)) {
2193 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2199 /* Require a module. */
2202 =head1 Embedding Functions
2204 =for apidoc p||require_pv
2206 Tells Perl to C<require> the file named by the string argument. It is
2207 analogous to the Perl code C<eval "require '$file'">. It's even
2208 implemented that way; consider using load_module instead.
2213 Perl_require_pv(pTHX_ const char *pv)
2217 PUSHSTACKi(PERLSI_REQUIRE);
2219 sv = sv_newmortal();
2220 sv_setpv(sv, "require '");
2223 eval_sv(sv, G_DISCARD);
2229 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2233 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2234 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2238 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2240 /* This message really ought to be max 23 lines.
2241 * Removed -h because the user already knows that option. Others? */
2243 static char *usage_msg[] = {
2244 "-0[octal] specify record separator (\\0, if no argument)",
2245 "-a autosplit mode with -n or -p (splits $_ into @F)",
2246 "-C enable native wide character system interfaces",
2247 "-c check syntax only (runs BEGIN and CHECK blocks)",
2248 "-d[:debugger] run program under debugger",
2249 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2250 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2251 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2252 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2253 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2254 "-l[octal] enable line ending processing, specifies line terminator",
2255 "-[mM][-]module execute `use/no module...' before executing program",
2256 "-n assume 'while (<>) { ... }' loop around program",
2257 "-p assume loop like -n but print line also, like sed",
2258 "-P run program through C preprocessor before compilation",
2259 "-s enable rudimentary parsing for switches after programfile",
2260 "-S look for programfile using PATH environment variable",
2261 "-T enable tainting checks",
2262 "-t enable tainting warnings",
2263 "-u dump core after parsing program",
2264 "-U allow unsafe operations",
2265 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2266 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2267 "-w enable many useful warnings (RECOMMENDED)",
2268 "-W enable all warnings",
2269 "-X disable all warnings",
2270 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2274 char **p = usage_msg;
2276 PerlIO_printf(PerlIO_stdout(),
2277 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2280 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2283 /* convert a string of -D options (or digits) into an int.
2284 * sets *s to point to the char after the options */
2288 Perl_get_debug_opts(pTHX_ char **s)
2292 /* if adding extra options, remember to update DEBUG_MASK */
2293 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2295 for (; isALNUM(**s); (*s)++) {
2296 char *d = strchr(debopts,**s);
2298 i |= 1 << (d - debopts);
2299 else if (ckWARN_d(WARN_DEBUGGING))
2300 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2301 "invalid option -D%c\n", **s);
2306 for (; isALNUM(**s); (*s)++) ;
2309 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2310 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2311 "-Dp not implemented on this platform\n");
2317 /* This routine handles any switches that can be given during run */
2320 Perl_moreswitches(pTHX_ char *s)
2330 SvREFCNT_dec(PL_rs);
2331 if (s[1] == 'x' && s[2]) {
2335 for (s += 2, e = s; *e; e++);
2337 flags = PERL_SCAN_SILENT_ILLDIGIT;
2338 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2339 if (s + numlen < e) {
2340 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2344 PL_rs = newSVpvn("", 0);
2345 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2346 tmps = (U8*)SvPVX(PL_rs);
2347 uvchr_to_utf8(tmps, rschar);
2348 SvCUR_set(PL_rs, UNISKIP(rschar));
2353 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2354 if (rschar & ~((U8)~0))
2355 PL_rs = &PL_sv_undef;
2356 else if (!rschar && numlen >= 2)
2357 PL_rs = newSVpvn("", 0);
2359 char ch = (char)rschar;
2360 PL_rs = newSVpvn(&ch, 1);
2367 PL_unicode = parse_unicode_opts(&s);
2372 while (*s && !isSPACE(*s)) ++s;
2374 PL_splitstr = savepv(PL_splitstr);
2387 /* The following permits -d:Mod to accepts arguments following an =
2388 in the fashion that -MSome::Mod does. */
2389 if (*s == ':' || *s == '=') {
2392 sv = newSVpv("use Devel::", 0);
2394 /* We now allow -d:Module=Foo,Bar */
2395 while(isALNUM(*s) || *s==':') ++s;
2397 sv_catpv(sv, start);
2399 sv_catpvn(sv, start, s-start);
2400 sv_catpv(sv, " split(/,/,q{");
2405 my_setenv("PERL5DB", SvPV(sv, PL_na));
2408 PL_perldb = PERLDB_ALL;
2417 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2418 #else /* !DEBUGGING */
2419 if (ckWARN_d(WARN_DEBUGGING))
2420 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2421 "Recompile perl with -DDEBUGGING to use -D switch\n");
2422 for (s++; isALNUM(*s); s++) ;
2428 usage(PL_origargv[0]);
2432 Safefree(PL_inplace);
2433 #if defined(__CYGWIN__) /* do backup extension automagically */
2434 if (*(s+1) == '\0') {
2435 PL_inplace = savepv(".bak");
2438 #endif /* __CYGWIN__ */
2439 PL_inplace = savepv(s+1);
2441 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2444 if (*s == '-') /* Additional switches on #! line. */
2448 case 'I': /* -I handled both here and in parse_body() */
2451 while (*s && isSPACE(*s))
2456 /* ignore trailing spaces (possibly followed by other switches) */
2458 for (e = p; *e && !isSPACE(*e); e++) ;
2462 } while (*p && *p != '-');
2463 e = savepvn(s, e-s);
2464 incpush(e, TRUE, TRUE, FALSE);
2471 Perl_croak(aTHX_ "No directory specified for -I");
2477 SvREFCNT_dec(PL_ors_sv);
2482 PL_ors_sv = newSVpvn("\n",1);
2483 numlen = 3 + (*s == '0');
2484 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2488 if (RsPARA(PL_rs)) {
2489 PL_ors_sv = newSVpvn("\n\n",2);
2492 PL_ors_sv = newSVsv(PL_rs);
2499 PL_preambleav = newAV();
2501 SV *sv = newSVpvn("use assertions::activate split(/,/,q{",37);
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{");
2543 PL_preambleav = newAV();
2544 av_push(PL_preambleav, sv);
2547 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2559 PL_doswitches = TRUE;
2573 #ifdef MACOS_TRADITIONAL
2574 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2576 PL_do_undump = TRUE;
2585 PerlIO_printf(PerlIO_stdout(),
2586 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2587 PL_patchlevel, ARCHNAME));
2589 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2590 PerlIO_printf(PerlIO_stdout(),
2591 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2592 PerlIO_printf(PerlIO_stdout(),
2593 Perl_form(aTHX_ " built under %s at %s %s\n",
2594 OSNAME, __DATE__, __TIME__));
2595 PerlIO_printf(PerlIO_stdout(),
2596 Perl_form(aTHX_ " OS Specific Release: %s\n",
2600 #if defined(LOCAL_PATCH_COUNT)
2601 if (LOCAL_PATCH_COUNT > 0)
2602 PerlIO_printf(PerlIO_stdout(),
2603 "\n(with %d registered patch%s, "
2604 "see perl -V for more detail)",
2605 (int)LOCAL_PATCH_COUNT,
2606 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2609 PerlIO_printf(PerlIO_stdout(),
2610 "\n\nCopyright 1987-2003, Larry Wall\n");
2611 #ifdef MACOS_TRADITIONAL
2612 PerlIO_printf(PerlIO_stdout(),
2613 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2614 "maintained by Chris Nandor\n");
2617 PerlIO_printf(PerlIO_stdout(),
2618 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2621 PerlIO_printf(PerlIO_stdout(),
2622 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2623 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2626 PerlIO_printf(PerlIO_stdout(),
2627 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2628 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2631 PerlIO_printf(PerlIO_stdout(),
2632 "atariST series port, ++jrb bammi@cadence.com\n");
2635 PerlIO_printf(PerlIO_stdout(),
2636 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2639 PerlIO_printf(PerlIO_stdout(),
2640 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2643 PerlIO_printf(PerlIO_stdout(),
2644 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2647 PerlIO_printf(PerlIO_stdout(),
2648 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2651 PerlIO_printf(PerlIO_stdout(),
2652 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2655 PerlIO_printf(PerlIO_stdout(),
2656 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2659 PerlIO_printf(PerlIO_stdout(),
2660 "MiNT port by Guido Flohr, 1997-1999\n");
2663 PerlIO_printf(PerlIO_stdout(),
2664 "EPOC port by Olaf Flebbe, 1999-2002\n");
2667 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2668 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2671 #ifdef BINARY_BUILD_NOTICE
2672 BINARY_BUILD_NOTICE;
2674 PerlIO_printf(PerlIO_stdout(),
2676 Perl may be copied only under the terms of either the Artistic License or the\n\
2677 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2678 Complete documentation for Perl, including FAQ lists, should be found on\n\
2679 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2680 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2683 if (! (PL_dowarn & G_WARN_ALL_MASK))
2684 PL_dowarn |= G_WARN_ON;
2688 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2689 if (!specialWARN(PL_compiling.cop_warnings))
2690 SvREFCNT_dec(PL_compiling.cop_warnings);
2691 PL_compiling.cop_warnings = pWARN_ALL ;
2695 PL_dowarn = G_WARN_ALL_OFF;
2696 if (!specialWARN(PL_compiling.cop_warnings))
2697 SvREFCNT_dec(PL_compiling.cop_warnings);
2698 PL_compiling.cop_warnings = pWARN_NONE ;
2703 if (s[1] == '-') /* Additional switches on #! line. */
2708 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2714 #ifdef ALTERNATE_SHEBANG
2715 case 'S': /* OS/2 needs -S on "extproc" line. */
2723 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2728 /* compliments of Tom Christiansen */
2730 /* unexec() can be found in the Gnu emacs distribution */
2731 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2734 Perl_my_unexec(pTHX)
2742 prog = newSVpv(BIN_EXP, 0);
2743 sv_catpv(prog, "/perl");
2744 file = newSVpv(PL_origfilename, 0);
2745 sv_catpv(file, ".perldump");
2747 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2748 /* unexec prints msg to stderr in case of failure */
2749 PerlProc_exit(status);
2752 # include <lib$routines.h>
2753 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2755 ABORT(); /* for use with undump */
2760 /* initialize curinterp */
2766 # define PERLVAR(var,type)
2767 # define PERLVARA(var,n,type)
2768 # if defined(PERL_IMPLICIT_CONTEXT)
2769 # if defined(USE_5005THREADS)
2770 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2771 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2772 # else /* !USE_5005THREADS */
2773 # define PERLVARI(var,type,init) aTHX->var = init;
2774 # define PERLVARIC(var,type,init) aTHX->var = init;
2775 # endif /* USE_5005THREADS */
2777 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2778 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2780 # include "intrpvar.h"
2781 # ifndef USE_5005THREADS
2782 # include "thrdvar.h"
2789 # define PERLVAR(var,type)
2790 # define PERLVARA(var,n,type)
2791 # define PERLVARI(var,type,init) PL_##var = init;
2792 # define PERLVARIC(var,type,init) PL_##var = init;
2793 # include "intrpvar.h"
2794 # ifndef USE_5005THREADS
2795 # include "thrdvar.h"
2806 S_init_main_stash(pTHX)
2810 PL_curstash = PL_defstash = newHV();
2811 PL_curstname = newSVpvn("main",4);
2812 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2813 SvREFCNT_dec(GvHV(gv));
2814 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2816 HvNAME(PL_defstash) = savepv("main");
2817 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2818 GvMULTI_on(PL_incgv);
2819 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2820 GvMULTI_on(PL_hintgv);
2821 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2822 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2823 GvMULTI_on(PL_errgv);
2824 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2825 GvMULTI_on(PL_replgv);
2826 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2827 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2828 sv_setpvn(ERRSV, "", 0);
2829 PL_curstash = PL_defstash;
2830 CopSTASH_set(&PL_compiling, PL_defstash);
2831 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2832 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2833 /* We must init $/ before switches are processed. */
2834 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2838 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2842 char *cpp_discard_flag;
2848 PL_origfilename = savepv("-e");
2851 /* if find_script() returns, it returns a malloc()-ed value */
2852 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2854 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2855 char *s = scriptname + 8;
2856 *fdscript = atoi(s);
2860 scriptname = savepv(s + 1);
2861 Safefree(PL_origfilename);
2862 PL_origfilename = scriptname;
2867 CopFILE_free(PL_curcop);
2868 CopFILE_set(PL_curcop, PL_origfilename);
2869 if (strEQ(PL_origfilename,"-"))
2871 if (*fdscript >= 0) {
2872 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2873 # if defined(HAS_FCNTL) && defined(F_SETFD)
2875 /* ensure close-on-exec */
2876 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2879 else if (PL_preprocess) {
2880 char *cpp_cfg = CPPSTDIN;
2881 SV *cpp = newSVpvn("",0);
2882 SV *cmd = NEWSV(0,0);
2884 if (strEQ(cpp_cfg, "cppstdin"))
2885 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2886 sv_catpv(cpp, cpp_cfg);
2889 sv_catpvn(sv, "-I", 2);
2890 sv_catpv(sv,PRIVLIB_EXP);
2893 DEBUG_P(PerlIO_printf(Perl_debug_log,
2894 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2895 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2897 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2904 cpp_discard_flag = "";
2906 cpp_discard_flag = "-C";
2910 perl = os2_execname(aTHX);
2912 perl = PL_origargv[0];
2916 /* This strips off Perl comments which might interfere with
2917 the C pre-processor, including #!. #line directives are
2918 deliberately stripped to avoid confusion with Perl's version
2919 of #line. FWP played some golf with it so it will fit
2920 into VMS's 255 character buffer.
2923 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2925 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2927 Perl_sv_setpvf(aTHX_ cmd, "\
2928 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2929 perl, quote, code, quote, scriptname, cpp,
2930 cpp_discard_flag, sv, CPPMINUS);
2932 PL_doextract = FALSE;
2933 # ifdef IAMSUID /* actually, this is caught earlier */
2934 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2936 (void)seteuid(PL_uid); /* musn't stay setuid root */
2938 # ifdef HAS_SETREUID
2939 (void)setreuid((Uid_t)-1, PL_uid);
2941 # ifdef HAS_SETRESUID
2942 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2944 PerlProc_setuid(PL_uid);
2948 if (PerlProc_geteuid() != PL_uid)
2949 Perl_croak(aTHX_ "Can't do seteuid!\n");
2951 # endif /* IAMSUID */
2953 DEBUG_P(PerlIO_printf(Perl_debug_log,
2954 "PL_preprocess: cmd=\"%s\"\n",
2957 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2961 else if (!*scriptname) {
2962 forbid_setid("program input from stdin");
2963 PL_rsfp = PerlIO_stdin();
2966 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2967 # if defined(HAS_FCNTL) && defined(F_SETFD)
2969 /* ensure close-on-exec */
2970 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2975 # ifndef IAMSUID /* in case script is not readable before setuid */
2977 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2978 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2982 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2983 BIN_EXP, (int)PERL_REVISION,
2985 (int)PERL_SUBVERSION), PL_origargv);
2987 Perl_croak(aTHX_ "Can't do setuid\n");
2993 Perl_croak(aTHX_ "Can't open perl script: %s\n",
2996 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2997 CopFILE(PL_curcop), Strerror(errno));
3003 * I_SYSSTATVFS HAS_FSTATVFS
3005 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
3006 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
3007 * here so that metaconfig picks them up. */
3011 S_fd_on_nosuid_fs(pTHX_ int fd)
3013 int check_okay = 0; /* able to do all the required sys/libcalls */
3014 int on_nosuid = 0; /* the fd is on a nosuid fs */
3016 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3017 * fstatvfs() is UNIX98.
3018 * fstatfs() is 4.3 BSD.
3019 * ustat()+getmnt() is pre-4.3 BSD.
3020 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3021 * an irrelevant filesystem while trying to reach the right one.
3024 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3026 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3027 defined(HAS_FSTATVFS)
3028 # define FD_ON_NOSUID_CHECK_OKAY
3029 struct statvfs stfs;
3031 check_okay = fstatvfs(fd, &stfs) == 0;
3032 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3033 # endif /* fstatvfs */
3035 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3036 defined(PERL_MOUNT_NOSUID) && \
3037 defined(HAS_FSTATFS) && \
3038 defined(HAS_STRUCT_STATFS) && \
3039 defined(HAS_STRUCT_STATFS_F_FLAGS)
3040 # define FD_ON_NOSUID_CHECK_OKAY
3043 check_okay = fstatfs(fd, &stfs) == 0;
3044 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3045 # endif /* fstatfs */
3047 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3048 defined(PERL_MOUNT_NOSUID) && \
3049 defined(HAS_FSTAT) && \
3050 defined(HAS_USTAT) && \
3051 defined(HAS_GETMNT) && \
3052 defined(HAS_STRUCT_FS_DATA) && \
3054 # define FD_ON_NOSUID_CHECK_OKAY
3057 if (fstat(fd, &fdst) == 0) {
3059 if (ustat(fdst.st_dev, &us) == 0) {
3061 /* NOSTAT_ONE here because we're not examining fields which
3062 * vary between that case and STAT_ONE. */
3063 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3064 size_t cmplen = sizeof(us.f_fname);
3065 if (sizeof(fsd.fd_req.path) < cmplen)
3066 cmplen = sizeof(fsd.fd_req.path);
3067 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3068 fdst.st_dev == fsd.fd_req.dev) {
3070 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3076 # endif /* fstat+ustat+getmnt */
3078 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3079 defined(HAS_GETMNTENT) && \
3080 defined(HAS_HASMNTOPT) && \
3081 defined(MNTOPT_NOSUID)
3082 # define FD_ON_NOSUID_CHECK_OKAY
3083 FILE *mtab = fopen("/etc/mtab", "r");
3084 struct mntent *entry;
3087 if (mtab && (fstat(fd, &stb) == 0)) {
3088 while (entry = getmntent(mtab)) {
3089 if (stat(entry->mnt_dir, &fsb) == 0
3090 && fsb.st_dev == stb.st_dev)
3092 /* found the filesystem */
3094 if (hasmntopt(entry, MNTOPT_NOSUID))
3097 } /* A single fs may well fail its stat(). */
3102 # endif /* getmntent+hasmntopt */
3105 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3108 #endif /* IAMSUID */
3111 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3117 /* do we need to emulate setuid on scripts? */
3119 /* This code is for those BSD systems that have setuid #! scripts disabled
3120 * in the kernel because of a security problem. Merely defining DOSUID
3121 * in perl will not fix that problem, but if you have disabled setuid
3122 * scripts in the kernel, this will attempt to emulate setuid and setgid
3123 * on scripts that have those now-otherwise-useless bits set. The setuid
3124 * root version must be called suidperl or sperlN.NNN. If regular perl
3125 * discovers that it has opened a setuid script, it calls suidperl with
3126 * the same argv that it had. If suidperl finds that the script it has
3127 * just opened is NOT setuid root, it sets the effective uid back to the
3128 * uid. We don't just make perl setuid root because that loses the
3129 * effective uid we had before invoking perl, if it was different from the
3132 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3133 * be defined in suidperl only. suidperl must be setuid root. The
3134 * Configure script will set this up for you if you want it.
3140 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3141 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3142 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3147 #ifndef HAS_SETREUID
3148 /* On this access check to make sure the directories are readable,
3149 * there is actually a small window that the user could use to make
3150 * filename point to an accessible directory. So there is a faint
3151 * chance that someone could execute a setuid script down in a
3152 * non-accessible directory. I don't know what to do about that.
3153 * But I don't think it's too important. The manual lies when
3154 * it says access() is useful in setuid programs.
3156 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
3157 Perl_croak(aTHX_ "Permission denied");
3159 /* If we can swap euid and uid, then we can determine access rights
3160 * with a simple stat of the file, and then compare device and
3161 * inode to make sure we did stat() on the same file we opened.
3162 * Then we just have to make sure he or she can execute it.
3169 setreuid(PL_euid,PL_uid) < 0
3172 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
3175 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
3176 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
3177 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
3178 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
3179 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3180 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
3181 Perl_croak(aTHX_ "Permission denied");
3183 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3184 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3185 (void)PerlIO_close(PL_rsfp);
3186 Perl_croak(aTHX_ "Permission denied\n");
3190 setreuid(PL_uid,PL_euid) < 0
3192 # if defined(HAS_SETRESUID)
3193 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3196 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3197 Perl_croak(aTHX_ "Can't reswap uid and euid");
3198 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3199 Perl_croak(aTHX_ "Permission denied\n");
3201 #endif /* HAS_SETREUID */
3202 #endif /* IAMSUID */
3204 if (!S_ISREG(PL_statbuf.st_mode))
3205 Perl_croak(aTHX_ "Permission denied");
3206 if (PL_statbuf.st_mode & S_IWOTH)
3207 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3208 PL_doswitches = FALSE; /* -s is insecure in suid */
3209 CopLINE_inc(PL_curcop);
3210 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3211 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3212 Perl_croak(aTHX_ "No #! line");
3213 s = SvPV(PL_linestr,n_a)+2;
3215 while (!isSPACE(*s)) s++;
3216 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3217 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3218 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3219 Perl_croak(aTHX_ "Not a perl script");
3220 while (*s == ' ' || *s == '\t') s++;
3222 * #! arg must be what we saw above. They can invoke it by
3223 * mentioning suidperl explicitly, but they may not add any strange
3224 * arguments beyond what #! says if they do invoke suidperl that way.
3226 len = strlen(validarg);
3227 if (strEQ(validarg," PHOOEY ") ||
3228 strnNE(s,validarg,len) || !isSPACE(s[len]))
3229 Perl_croak(aTHX_ "Args must match #! line");
3232 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3233 PL_euid == PL_statbuf.st_uid)
3235 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3236 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3237 #endif /* IAMSUID */
3239 if (PL_euid) { /* oops, we're not the setuid root perl */
3240 (void)PerlIO_close(PL_rsfp);
3244 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3245 (int)PERL_REVISION, (int)PERL_VERSION,
3246 (int)PERL_SUBVERSION), PL_origargv);
3249 Perl_croak(aTHX_ "Can't do setuid\n");
3252 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3254 (void)setegid(PL_statbuf.st_gid);
3257 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3259 #ifdef HAS_SETRESGID
3260 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3262 PerlProc_setgid(PL_statbuf.st_gid);
3266 if (PerlProc_getegid() != PL_statbuf.st_gid)
3267 Perl_croak(aTHX_ "Can't do setegid!\n");
3269 if (PL_statbuf.st_mode & S_ISUID) {
3270 if (PL_statbuf.st_uid != PL_euid)
3272 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3275 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3277 #ifdef HAS_SETRESUID
3278 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3280 PerlProc_setuid(PL_statbuf.st_uid);
3284 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3285 Perl_croak(aTHX_ "Can't do seteuid!\n");
3287 else if (PL_uid) { /* oops, mustn't run as root */
3289 (void)seteuid((Uid_t)PL_uid);
3292 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3294 #ifdef HAS_SETRESUID
3295 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3297 PerlProc_setuid((Uid_t)PL_uid);
3301 if (PerlProc_geteuid() != PL_uid)
3302 Perl_croak(aTHX_ "Can't do seteuid!\n");
3305 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3306 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3309 else if (PL_preprocess)
3310 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3311 else if (fdscript >= 0)
3312 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3314 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
3316 /* We absolutely must clear out any saved ids here, so we */
3317 /* exec the real perl, substituting fd script for scriptname. */
3318 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3319 PerlIO_rewind(PL_rsfp);
3320 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3321 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3322 if (!PL_origargv[which])
3323 Perl_croak(aTHX_ "Permission denied");
3324 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3325 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3326 #if defined(HAS_FCNTL) && defined(F_SETFD)
3327 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3330 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3331 (int)PERL_REVISION, (int)PERL_VERSION,
3332 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3334 Perl_croak(aTHX_ "Can't do setuid\n");
3335 #endif /* IAMSUID */
3337 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3338 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3339 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3340 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3342 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3345 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3346 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3347 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3348 /* not set-id, must be wrapped */
3354 S_find_beginning(pTHX)
3356 register char *s, *s2;
3357 #ifdef MACOS_TRADITIONAL
3361 /* skip forward in input to the real script? */
3364 #ifdef MACOS_TRADITIONAL
3365 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3367 while (PL_doextract || gMacPerl_AlwaysExtract) {
3368 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3369 if (!gMacPerl_AlwaysExtract)
3370 Perl_croak(aTHX_ "No Perl script found in input\n");
3372 if (PL_doextract) /* require explicit override ? */
3373 if (!OverrideExtract(PL_origfilename))
3374 Perl_croak(aTHX_ "User aborted script\n");
3376 PL_doextract = FALSE;
3378 /* Pater peccavi, file does not have #! */
3379 PerlIO_rewind(PL_rsfp);
3384 while (PL_doextract) {
3385 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3386 Perl_croak(aTHX_ "No Perl script found in input\n");
3389 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3390 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3391 PL_doextract = FALSE;
3392 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3394 while (*s == ' ' || *s == '\t') s++;
3396 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3397 if (strnEQ(s2-4,"perl",4))
3399 while ((s = moreswitches(s)))
3402 #ifdef MACOS_TRADITIONAL
3403 /* We are always searching for the #!perl line in MacPerl,
3404 * so if we find it, still keep the line count correct
3405 * by counting lines we already skipped over
3407 for (; maclines > 0 ; maclines--)
3408 PerlIO_ungetc(PL_rsfp, '\n');
3412 /* gMacPerl_AlwaysExtract is false in MPW tool */
3413 } else if (gMacPerl_AlwaysExtract) {
3424 PL_uid = PerlProc_getuid();
3425 PL_euid = PerlProc_geteuid();
3426 PL_gid = PerlProc_getgid();
3427 PL_egid = PerlProc_getegid();
3429 PL_uid |= PL_gid << 16;
3430 PL_euid |= PL_egid << 16;
3432 /* Should not happen: */
3433 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3434 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3437 /* This is used very early in the lifetime of the program,
3438 * before even the options are parsed, so PL_tainting has
3439 * not been initialized properly. */
3441 Perl_doing_taint(int argc, char *argv[], char *envp[])
3443 #ifndef PERL_IMPLICIT_SYS
3444 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3445 * before we have an interpreter-- and the whole point of this
3446 * function is to be called at such an early stage. If you are on
3447 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3448 * "tainted because running with altered effective ids', you'll
3449 * have to add your own checks somewhere in here. The two most
3450 * known samples of 'implicitness' are Win32 and NetWare, neither
3451 * of which has much of concept of 'uids'. */
3452 int uid = PerlProc_getuid();
3453 int euid = PerlProc_geteuid();
3454 int gid = PerlProc_getgid();
3455 int egid = PerlProc_getegid();
3461 if (uid && (euid != uid || egid != gid))
3463 #endif /* !PERL_IMPLICIT_SYS */
3464 /* This is a really primitive check; environment gets ignored only
3465 * if -T are the first chars together; otherwise one gets
3466 * "Too late" message. */
3467 if ( argc > 1 && argv[1][0] == '-'
3468 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3474 S_forbid_setid(pTHX_ char *s)
3476 if (PL_euid != PL_uid)
3477 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3478 if (PL_egid != PL_gid)
3479 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3483 Perl_init_debugger(pTHX)
3485 HV *ostash = PL_curstash;
3487 PL_curstash = PL_debstash;
3488 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3489 AvREAL_off(PL_dbargs);
3490 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3491 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3492 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3493 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3494 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3495 sv_setiv(PL_DBsingle, 0);
3496 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3497 sv_setiv(PL_DBtrace, 0);
3498 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3499 sv_setiv(PL_DBsignal, 0);
3500 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3501 sv_setiv(PL_DBassertion, 0);
3502 PL_curstash = ostash;
3505 #ifndef STRESS_REALLOC
3506 #define REASONABLE(size) (size)
3508 #define REASONABLE(size) (1) /* unreasonable */
3512 Perl_init_stacks(pTHX)
3514 /* start with 128-item stack and 8K cxstack */
3515 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3516 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3517 PL_curstackinfo->si_type = PERLSI_MAIN;
3518 PL_curstack = PL_curstackinfo->si_stack;
3519 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3521 PL_stack_base = AvARRAY(PL_curstack);
3522 PL_stack_sp = PL_stack_base;
3523 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3525 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3528 PL_tmps_max = REASONABLE(128);
3530 New(54,PL_markstack,REASONABLE(32),I32);
3531 PL_markstack_ptr = PL_markstack;
3532 PL_markstack_max = PL_markstack + REASONABLE(32);
3536 New(54,PL_scopestack,REASONABLE(32),I32);
3537 PL_scopestack_ix = 0;
3538 PL_scopestack_max = REASONABLE(32);
3540 New(54,PL_savestack,REASONABLE(128),ANY);
3541 PL_savestack_ix = 0;
3542 PL_savestack_max = REASONABLE(128);
3544 New(54,PL_retstack,REASONABLE(16),OP*);
3546 PL_retstack_max = REASONABLE(16);
3554 while (PL_curstackinfo->si_next)
3555 PL_curstackinfo = PL_curstackinfo->si_next;
3556 while (PL_curstackinfo) {
3557 PERL_SI *p = PL_curstackinfo->si_prev;
3558 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3559 Safefree(PL_curstackinfo->si_cxstack);
3560 Safefree(PL_curstackinfo);
3561 PL_curstackinfo = p;
3563 Safefree(PL_tmps_stack);
3564 Safefree(PL_markstack);
3565 Safefree(PL_scopestack);
3566 Safefree(PL_savestack);
3567 Safefree(PL_retstack);
3576 lex_start(PL_linestr);
3578 PL_subname = newSVpvn("main",4);
3582 S_init_predump_symbols(pTHX)
3587 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3588 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3589 GvMULTI_on(PL_stdingv);
3590 io = GvIOp(PL_stdingv);
3591 IoTYPE(io) = IoTYPE_RDONLY;
3592 IoIFP(io) = PerlIO_stdin();
3593 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3595 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3597 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3600 IoTYPE(io) = IoTYPE_WRONLY;
3601 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3603 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3605 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3607 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3608 GvMULTI_on(PL_stderrgv);
3609 io = GvIOp(PL_stderrgv);
3610 IoTYPE(io) = IoTYPE_WRONLY;
3611 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3612 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3614 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3616 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3619 Safefree(PL_osname);
3620 PL_osname = savepv(OSNAME);
3624 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3627 argc--,argv++; /* skip name of script */
3628 if (PL_doswitches) {
3629 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3632 if (argv[0][1] == '-' && !argv[0][2]) {
3636 if ((s = strchr(argv[0], '='))) {
3638 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3641 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3644 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3645 GvMULTI_on(PL_argvgv);
3646 (void)gv_AVadd(PL_argvgv);
3647 av_clear(GvAVn(PL_argvgv));
3648 for (; argc > 0; argc--,argv++) {
3649 SV *sv = newSVpv(argv[0],0);
3650 av_push(GvAVn(PL_argvgv),sv);
3651 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3652 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3655 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3656 (void)sv_utf8_decode(sv);
3661 #ifdef HAS_PROCSELFEXE
3662 /* This is a function so that we don't hold on to MAXPATHLEN
3663 bytes of stack longer than necessary
3666 S_procself_val(pTHX_ SV *sv, char *arg0)
3668 char buf[MAXPATHLEN];
3669 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3671 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3672 includes a spurious NUL which will cause $^X to fail in system
3673 or backticks (this will prevent extensions from being built and
3674 many tests from working). readlink is not meant to add a NUL.
3675 Normal readlink works fine.
3677 if (len > 0 && buf[len-1] == '\0') {
3681 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3682 returning the text "unknown" from the readlink rather than the path
3683 to the executable (or returning an error from the readlink). Any valid
3684 path has a '/' in it somewhere, so use that to validate the result.
3685 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3687 if (len > 0 && memchr(buf, '/', len)) {
3688 sv_setpvn(sv,buf,len);
3694 #endif /* HAS_PROCSELFEXE */
3697 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3703 PL_toptarget = NEWSV(0,0);
3704 sv_upgrade(PL_toptarget, SVt_PVFM);
3705 sv_setpvn(PL_toptarget, "", 0);
3706 PL_bodytarget = NEWSV(0,0);
3707 sv_upgrade(PL_bodytarget, SVt_PVFM);
3708 sv_setpvn(PL_bodytarget, "", 0);
3709 PL_formtarget = PL_bodytarget;
3713 init_argv_symbols(argc,argv);
3715 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3716 #ifdef MACOS_TRADITIONAL
3717 /* $0 is not majick on a Mac */
3718 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3720 sv_setpv(GvSV(tmpgv),PL_origfilename);
3721 magicname("0", "0", 1);
3724 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3725 #ifdef HAS_PROCSELFEXE
3726 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3729 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3731 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3735 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3737 GvMULTI_on(PL_envgv);
3738 hv = GvHVn(PL_envgv);
3739 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3740 #ifdef USE_ENVIRON_ARRAY
3741 /* Note that if the supplied env parameter is actually a copy
3742 of the global environ then it may now point to free'd memory
3743 if the environment has been modified since. To avoid this
3744 problem we treat env==NULL as meaning 'use the default'
3749 # ifdef USE_ITHREADS
3750 && PL_curinterp == aTHX
3754 environ[0] = Nullch;
3757 for (; *env; env++) {
3758 if (!(s = strchr(*env,'=')))
3765 sv = newSVpv(s+1, 0);
3766 (void)hv_store(hv, *env, s - *env, sv, 0);
3770 #endif /* USE_ENVIRON_ARRAY */
3773 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3774 SvREADONLY_off(GvSV(tmpgv));
3775 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3776 SvREADONLY_on(GvSV(tmpgv));
3778 #ifdef THREADS_HAVE_PIDS
3779 PL_ppid = (IV)getppid();
3782 /* touch @F array to prevent spurious warnings 20020415 MJD */
3784 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3786 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3787 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3788 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3792 S_init_perllib(pTHX)
3797 s = PerlEnv_getenv("PERL5LIB");
3799 incpush(s, TRUE, TRUE, TRUE);
3801 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3803 /* Treat PERL5?LIB as a possible search list logical name -- the
3804 * "natural" VMS idiom for a Unix path string. We allow each
3805 * element to be a set of |-separated directories for compatibility.
3809 if (my_trnlnm("PERL5LIB",buf,0))
3810 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3812 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3816 /* Use the ~-expanded versions of APPLLIB (undocumented),
3817 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3820 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3824 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3826 #ifdef MACOS_TRADITIONAL
3829 SV * privdir = NEWSV(55, 0);
3830 char * macperl = PerlEnv_getenv("MACPERL");
3835 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3836 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3837 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3838 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3839 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3840 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3842 SvREFCNT_dec(privdir);
3845 incpush(":", FALSE, FALSE, TRUE);
3848 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3851 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3853 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3857 /* sitearch is always relative to sitelib on Windows for
3858 * DLL-based path intuition to work correctly */
3859 # if !defined(WIN32)
3860 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3866 /* this picks up sitearch as well */
3867 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3869 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3873 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3874 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3877 #ifdef PERL_VENDORARCH_EXP
3878 /* vendorarch is always relative to vendorlib on Windows for
3879 * DLL-based path intuition to work correctly */
3880 # if !defined(WIN32)
3881 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3885 #ifdef PERL_VENDORLIB_EXP
3887 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3889 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3893 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3894 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3897 #ifdef PERL_OTHERLIBDIRS
3898 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3902 incpush(".", FALSE, FALSE, TRUE);
3903 #endif /* MACOS_TRADITIONAL */
3906 #if defined(DOSISH) || defined(EPOC)
3907 # define PERLLIB_SEP ';'
3910 # define PERLLIB_SEP '|'
3912 # if defined(MACOS_TRADITIONAL)
3913 # define PERLLIB_SEP ','
3915 # define PERLLIB_SEP ':'
3919 #ifndef PERLLIB_MANGLE
3920 # define PERLLIB_MANGLE(s,n) (s)
3924 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3926 SV *subdir = Nullsv;
3931 if (addsubdirs || addoldvers) {
3932 subdir = sv_newmortal();
3935 /* Break at all separators */
3937 SV *libdir = NEWSV(55,0);
3940 /* skip any consecutive separators */
3942 while ( *p == PERLLIB_SEP ) {
3943 /* Uncomment the next line for PATH semantics */
3944 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3949 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3950 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3955 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3956 p = Nullch; /* break out */
3958 #ifdef MACOS_TRADITIONAL
3959 if (!strchr(SvPVX(libdir), ':')) {
3962 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3964 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3965 sv_catpv(libdir, ":");
3969 * BEFORE pushing libdir onto @INC we may first push version- and
3970 * archname-specific sub-directories.
3972 if (addsubdirs || addoldvers) {
3973 #ifdef PERL_INC_VERSION_LIST
3974 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3975 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3976 const char **incver;
3983 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3985 while (unix[len-1] == '/') len--; /* Cosmetic */
3986 sv_usepvn(libdir,unix,len);
3989 PerlIO_printf(Perl_error_log,
3990 "Failed to unixify @INC element \"%s\"\n",
3994 #ifdef MACOS_TRADITIONAL
3995 #define PERL_AV_SUFFIX_FMT ""
3996 #define PERL_ARCH_FMT "%s:"
3997 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
3999 #define PERL_AV_SUFFIX_FMT "/"
4000 #define PERL_ARCH_FMT "/%s"
4001 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
4003 /* .../version/archname if -d .../version/archname */
4004 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
4006 (int)PERL_REVISION, (int)PERL_VERSION,
4007 (int)PERL_SUBVERSION, ARCHNAME);
4008 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4009 S_ISDIR(tmpstatbuf.st_mode))
4010 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4012 /* .../version if -d .../version */
4013 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4014 (int)PERL_REVISION, (int)PERL_VERSION,
4015 (int)PERL_SUBVERSION);
4016 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4017 S_ISDIR(tmpstatbuf.st_mode))
4018 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4020 /* .../archname if -d .../archname */
4021 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4022 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4023 S_ISDIR(tmpstatbuf.st_mode))
4024 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4027 #ifdef PERL_INC_VERSION_LIST
4029 for (incver = incverlist; *incver; incver++) {
4030 /* .../xxx if -d .../xxx */
4031 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4032 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4033 S_ISDIR(tmpstatbuf.st_mode))
4034 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4040 /* finally push this lib directory on the end of @INC */
4041 av_push(GvAVn(PL_incgv), libdir);
4045 #ifdef USE_5005THREADS
4046 STATIC struct perl_thread *
4047 S_init_main_thread(pTHX)
4049 #if !defined(PERL_IMPLICIT_CONTEXT)
4050 struct perl_thread *thr;
4054 Newz(53, thr, 1, struct perl_thread);
4055 PL_curcop = &PL_compiling;
4056 thr->interp = PERL_GET_INTERP;
4057 thr->cvcache = newHV();
4058 thr->threadsv = newAV();
4059 /* thr->threadsvp is set when find_threadsv is called */
4060 thr->specific = newAV();
4061 thr->flags = THRf_R_JOINABLE;
4062 MUTEX_INIT(&thr->mutex);
4063 /* Handcraft thrsv similarly to mess_sv */
4064 New(53, PL_thrsv, 1, SV);
4065 Newz(53, xpv, 1, XPV);
4066 SvFLAGS(PL_thrsv) = SVt_PV;
4067 SvANY(PL_thrsv) = (void*)xpv;
4068 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4069 SvPVX(PL_thrsv) = (char*)thr;
4070 SvCUR_set(PL_thrsv, sizeof(thr));
4071 SvLEN_set(PL_thrsv, sizeof(thr));
4072 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4073 thr->oursv = PL_thrsv;
4074 PL_chopset = " \n-";
4077 MUTEX_LOCK(&PL_threads_mutex);
4083 MUTEX_UNLOCK(&PL_threads_mutex);
4085 #ifdef HAVE_THREAD_INTERN
4086 Perl_init_thread_intern(thr);
4089 #ifdef SET_THREAD_SELF
4090 SET_THREAD_SELF(thr);
4092 thr->self = pthread_self();
4093 #endif /* SET_THREAD_SELF */
4097 * These must come after the thread self setting
4098 * because sv_setpvn does SvTAINT and the taint
4099 * fields thread selfness being set.
4101 PL_toptarget = NEWSV(0,0);
4102 sv_upgrade(PL_toptarget, SVt_PVFM);
4103 sv_setpvn(PL_toptarget, "", 0);
4104 PL_bodytarget = NEWSV(0,0);
4105 sv_upgrade(PL_bodytarget, SVt_PVFM);
4106 sv_setpvn(PL_bodytarget, "", 0);
4107 PL_formtarget = PL_bodytarget;
4108 thr->errsv = newSVpvn("", 0);
4109 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4112 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4113 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4114 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4115 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4116 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4117 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4119 PL_reginterp_cnt = 0;
4123 #endif /* USE_5005THREADS */
4126 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4129 line_t oldline = CopLINE(PL_curcop);
4135 while (AvFILL(paramList) >= 0) {
4136 cv = (CV*)av_shift(paramList);
4138 if (paramList == PL_beginav) {
4139 /* save PL_beginav for compiler */
4140 if (! PL_beginav_save)
4141 PL_beginav_save = newAV();
4142 av_push(PL_beginav_save, (SV*)cv);
4144 else if (paramList == PL_checkav) {
4145 /* save PL_checkav for compiler */
4146 if (! PL_checkav_save)
4147 PL_checkav_save = newAV();
4148 av_push(PL_checkav_save, (SV*)cv);
4153 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4154 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4160 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4164 (void)SvPV(atsv, len);
4166 PL_curcop = &PL_compiling;
4167 CopLINE_set(PL_curcop, oldline);
4168 if (paramList == PL_beginav)
4169 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4171 Perl_sv_catpvf(aTHX_ atsv,
4172 "%s failed--call queue aborted",
4173 paramList == PL_checkav ? "CHECK"
4174 : paramList == PL_initav ? "INIT"
4176 while (PL_scopestack_ix > oldscope)
4179 Perl_croak(aTHX_ "%"SVf"", atsv);
4186 /* my_exit() was called */
4187 while (PL_scopestack_ix > oldscope)
4190 PL_curstash = PL_defstash;
4191 PL_curcop = &PL_compiling;
4192 CopLINE_set(PL_curcop, oldline);
4194 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4195 if (paramList == PL_beginav)
4196 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4198 Perl_croak(aTHX_ "%s failed--call queue aborted",
4199 paramList == PL_checkav ? "CHECK"
4200 : paramList == PL_initav ? "INIT"
4207 PL_curcop = &PL_compiling;
4208 CopLINE_set(PL_curcop, oldline);
4211 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4219 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4221 S_vcall_list_body(pTHX_ va_list args)
4223 CV *cv = va_arg(args, CV*);
4224 return call_list_body(cv);
4229 S_call_list_body(pTHX_ CV *cv)
4231 PUSHMARK(PL_stack_sp);
4232 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4237 Perl_my_exit(pTHX_ U32 status)
4239 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4240 thr, (unsigned long) status));
4249 STATUS_NATIVE_SET(status);
4256 Perl_my_failure_exit(pTHX)
4259 if (vaxc$errno & 1) {
4260 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4261 STATUS_NATIVE_SET(44);
4264 if (!vaxc$errno && errno) /* unlikely */
4265 STATUS_NATIVE_SET(44);
4267 STATUS_NATIVE_SET(vaxc$errno);
4272 STATUS_POSIX_SET(errno);
4274 exitstatus = STATUS_POSIX >> 8;
4275 if (exitstatus & 255)
4276 STATUS_POSIX_SET(exitstatus);
4278 STATUS_POSIX_SET(255);
4285 S_my_exit_jump(pTHX)
4287 register PERL_CONTEXT *cx;
4292 SvREFCNT_dec(PL_e_script);
4293 PL_e_script = Nullsv;
4296 POPSTACK_TO(PL_mainstack);
4297 if (cxstack_ix >= 0) {
4300 POPBLOCK(cx,PL_curpm);
4308 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4311 p = SvPVX(PL_e_script);
4312 nl = strchr(p, '\n');
4313 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4315 filter_del(read_e_script);
4318 sv_catpvn(buf_sv, p, nl-p);
4319 sv_chop(PL_e_script, nl);