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 bool earlytaint = doing_taint(argc, argv, env);
908 s = PerlEnv_getenv("PERL_HASH_SEED");
910 while (isSPACE(*s)) s++;
911 if (s && isDIGIT(*s))
912 PL_hash_seed = (UV)Atoul(s);
913 #ifndef USE_HASH_SEED_EXPLICIT
915 /* Compute a random seed */
916 (void)seedDrand01((Rand_seed_t)seed());
917 PL_srand_called = TRUE;
918 PL_hash_seed = (UV)(Drand01() * (NV)UV_MAX);
919 #if RANDBITS < (UVSIZE * 8)
920 /* Since there are not enough randbits to to reach all
921 * the bits of a UV, the low bits might need extra
922 * help. Sum in another random number that will
923 * fill in the low bits. */
925 (UV)(Drand01() * (NV)((1 << ((UVSIZE * 8 - RANDBITS))) - 1));
926 #endif /* RANDBITS < (UVSIZE * 8) */
928 #endif /* USE_HASH_SEED_EXPLICIT */
929 if ((s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG")))
930 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
933 #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
939 /* Set PL_origalen be the sum of the contiguous argv[]
940 * elements plus the size of the env in case that it is
941 * contiguous with the argv[]. This is used in mg.c:mg_set()
942 * as the maximum modifiable length of $0. In the worst case
943 * the area we are able to modify is limited to the size of
944 * the original argv[0]. (See below for 'contiguous', though.)
949 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
950 /* Do the mask check only if the args seem like aligned. */
952 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
954 /* See if all the arguments are contiguous in memory. Note
955 * that 'contiguous' is a loose term because some platforms
956 * align the argv[] and the envp[]. If the arguments look
957 * like non-aligned, assume that they are 'strictly' or
958 * 'traditionally' contiguous. If the arguments look like
959 * aligned, we just check that they are within aligned
960 * PTRSIZE bytes. As long as no system has something bizarre
961 * like the argv[] interleaved with some other data, we are
962 * fine. (Did I just evoke Murphy's Law?) --jhi */
965 for (i = 1; i < PL_origargc; i++) {
966 if ((PL_origargv[i] == s + 1
968 || PL_origargv[i] == s + 2
973 (PL_origargv[i] > s &&
975 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
984 /* Can we grab env area too to be used as the area for $0? */
985 if (PL_origenviron) {
986 if ((PL_origenviron[0] == s + 1
988 || (PL_origenviron[0] == s + 9 && (s += 8))
993 (PL_origenviron[0] > s &&
995 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
999 s = PL_origenviron[0];
1002 my_setenv("NoNe SuCh", Nullch);
1003 /* Force copy of environment. */
1004 for (i = 1; PL_origenviron[i]; i++) {
1005 if (PL_origenviron[i] == s + 1
1008 (PL_origenviron[i] > s &&
1009 PL_origenviron[i] <=
1010 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1013 s = PL_origenviron[i];
1021 PL_origalen = s - PL_origargv[0];
1026 /* Come here if running an undumped a.out. */
1028 PL_origfilename = savepv(argv[0]);
1029 PL_do_undump = FALSE;
1030 cxstack_ix = -1; /* start label stack again */
1032 init_postdump_symbols(argc,argv,env);
1037 op_free(PL_main_root);
1038 PL_main_root = Nullop;
1040 PL_main_start = Nullop;
1041 SvREFCNT_dec(PL_main_cv);
1042 PL_main_cv = Nullcv;
1045 oldscope = PL_scopestack_ix;
1046 PL_dowarn = G_WARN_OFF;
1048 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1049 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1055 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1056 parse_body(env,xsinit);
1059 call_list(oldscope, PL_checkav);
1066 /* my_exit() was called */
1067 while (PL_scopestack_ix > oldscope)
1070 PL_curstash = PL_defstash;
1072 call_list(oldscope, PL_checkav);
1073 ret = STATUS_NATIVE_EXPORT;
1076 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1084 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1086 S_vparse_body(pTHX_ va_list args)
1088 char **env = va_arg(args, char**);
1089 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1091 return parse_body(env, xsinit);
1096 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1098 int argc = PL_origargc;
1099 char **argv = PL_origargv;
1100 char *scriptname = NULL;
1102 VOL bool dosearch = FALSE;
1103 char *validarg = "";
1106 char *cddir = Nullch;
1108 sv_setpvn(PL_linestr,"",0);
1109 sv = newSVpvn("",0); /* first used for -I flags */
1113 for (argc--,argv++; argc > 0; argc--,argv++) {
1114 if (argv[0][0] != '-' || !argv[0][1])
1118 validarg = " PHOOEY ";
1126 #ifndef PERL_STRICT_CR
1151 if ((s = moreswitches(s)))
1156 CHECK_MALLOC_TOO_LATE_FOR('t');
1157 if( !PL_tainting ) {
1158 PL_taint_warn = TRUE;
1164 CHECK_MALLOC_TOO_LATE_FOR('T');
1166 PL_taint_warn = FALSE;
1171 #ifdef MACOS_TRADITIONAL
1172 /* ignore -e for Dev:Pseudo argument */
1173 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1176 if (PL_euid != PL_uid || PL_egid != PL_gid)
1177 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1179 PL_e_script = newSVpvn("",0);
1180 filter_add(read_e_script, NULL);
1183 sv_catpv(PL_e_script, s);
1185 sv_catpv(PL_e_script, argv[1]);
1189 Perl_croak(aTHX_ "No code specified for -e");
1190 sv_catpv(PL_e_script, "\n");
1193 case 'I': /* -I handled both here and in moreswitches() */
1195 if (!*++s && (s=argv[1]) != Nullch) {
1200 STRLEN len = strlen(s);
1201 p = savepvn(s, len);
1202 incpush(p, TRUE, TRUE, FALSE);
1203 sv_catpvn(sv, "-I", 2);
1204 sv_catpvn(sv, p, len);
1205 sv_catpvn(sv, " ", 1);
1209 Perl_croak(aTHX_ "No directory specified for -I");
1213 PL_preprocess = TRUE;
1223 PL_preambleav = newAV();
1224 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1226 PL_Sv = newSVpv("print myconfig();",0);
1228 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1230 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1232 sv_catpv(PL_Sv,"\" Compile-time options:");
1234 sv_catpv(PL_Sv," DEBUGGING");
1236 # ifdef MULTIPLICITY
1237 sv_catpv(PL_Sv," MULTIPLICITY");
1239 # ifdef USE_5005THREADS
1240 sv_catpv(PL_Sv," USE_5005THREADS");
1242 # ifdef USE_ITHREADS
1243 sv_catpv(PL_Sv," USE_ITHREADS");
1245 # ifdef USE_64_BIT_INT
1246 sv_catpv(PL_Sv," USE_64_BIT_INT");
1248 # ifdef USE_64_BIT_ALL
1249 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1251 # ifdef USE_LONG_DOUBLE
1252 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1254 # ifdef USE_LARGE_FILES
1255 sv_catpv(PL_Sv," USE_LARGE_FILES");
1258 sv_catpv(PL_Sv," USE_SOCKS");
1260 # ifdef PERL_IMPLICIT_CONTEXT
1261 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1263 # ifdef PERL_IMPLICIT_SYS
1264 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1266 sv_catpv(PL_Sv,"\\n\",");
1268 #if defined(LOCAL_PATCH_COUNT)
1269 if (LOCAL_PATCH_COUNT > 0) {
1271 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1272 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1273 if (PL_localpatches[i])
1274 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1278 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1281 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1283 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1286 sv_catpv(PL_Sv, "; \
1288 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1291 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1294 print \" \\%ENV:\\n @env\\n\" if @env; \
1295 print \" \\@INC:\\n @INC\\n\";");
1298 PL_Sv = newSVpv("config_vars(qw(",0);
1299 sv_catpv(PL_Sv, ++s);
1300 sv_catpv(PL_Sv, "))");
1303 av_push(PL_preambleav, PL_Sv);
1304 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1307 PL_doextract = TRUE;
1315 if (!*++s || isSPACE(*s)) {
1319 /* catch use of gnu style long options */
1320 if (strEQ(s, "version")) {
1324 if (strEQ(s, "help")) {
1331 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1335 sv_setsv(get_sv("/", TRUE), PL_rs);
1338 #ifndef SECURE_INTERNAL_GETENV
1341 (s = PerlEnv_getenv("PERL5OPT")))
1346 if (*s == '-' && *(s+1) == 'T') {
1347 CHECK_MALLOC_TOO_LATE_FOR('T');
1349 PL_taint_warn = FALSE;
1352 char *popt_copy = Nullch;
1365 if (!strchr("DIMUdmtwA", *s))
1366 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1370 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1371 s = popt_copy + (s - popt);
1372 d = popt_copy + (d - popt);
1379 if( !PL_tainting ) {
1380 PL_taint_warn = TRUE;
1390 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1391 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1395 scriptname = argv[0];
1398 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1400 else if (scriptname == Nullch) {
1402 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1410 open_script(scriptname,dosearch,sv,&fdscript);
1412 validate_suid(validarg, scriptname,fdscript);
1415 #if defined(SIGCHLD) || defined(SIGCLD)
1418 # define SIGCHLD SIGCLD
1420 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1421 if (sigstate == SIG_IGN) {
1422 if (ckWARN(WARN_SIGNAL))
1423 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1424 "Can't ignore signal CHLD, forcing to default");
1425 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1431 #ifdef MACOS_TRADITIONAL
1432 if (PL_doextract || gMacPerl_AlwaysExtract) {
1437 if (cddir && PerlDir_chdir(cddir) < 0)
1438 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1442 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1443 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1444 CvUNIQUE_on(PL_compcv);
1446 CvPADLIST(PL_compcv) = pad_new(0);
1447 #ifdef USE_5005THREADS
1448 CvOWNER(PL_compcv) = 0;
1449 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1450 MUTEX_INIT(CvMUTEXP(PL_compcv));
1451 #endif /* USE_5005THREADS */
1454 boot_core_UNIVERSAL();
1456 boot_core_xsutils();
1460 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1462 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1468 # ifdef HAS_SOCKS5_INIT
1469 socks5_init(argv[0]);
1475 init_predump_symbols();
1476 /* init_postdump_symbols not currently designed to be called */
1477 /* more than once (ENV isn't cleared first, for example) */
1478 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1480 init_postdump_symbols(argc,argv,env);
1482 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1483 * PL_utf8locale is conditionally turned on by
1484 * locale.c:Perl_init_i18nl10n() if the environment
1485 * look like the user wants to use UTF-8. */
1487 /* Requires init_predump_symbols(). */
1488 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1493 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1494 * and the default open disciplines. */
1495 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1496 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1498 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1499 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1500 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1502 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1503 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1504 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1506 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1507 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1508 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1509 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1510 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1513 sv_setpvn(sv, ":utf8\0:utf8", 11);
1515 sv_setpvn(sv, ":utf8\0", 6);
1518 sv_setpvn(sv, "\0:utf8", 6);
1524 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1525 if (strEQ(s, "unsafe"))
1526 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1527 else if (strEQ(s, "safe"))
1528 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1530 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1535 /* now parse the script */
1537 SETERRNO(0,SS_NORMAL);
1539 #ifdef MACOS_TRADITIONAL
1540 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1542 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1544 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1545 MacPerl_MPWFileName(PL_origfilename));
1549 if (yyparse() || PL_error_count) {
1551 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1553 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1558 CopLINE_set(PL_curcop, 0);
1559 PL_curstash = PL_defstash;
1560 PL_preprocess = FALSE;
1562 SvREFCNT_dec(PL_e_script);
1563 PL_e_script = Nullsv;
1570 SAVECOPFILE(PL_curcop);
1571 SAVECOPLINE(PL_curcop);
1572 gv_check(PL_defstash);
1579 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1580 dump_mstats("after compilation:");
1589 =for apidoc perl_run
1591 Tells a Perl interpreter to run. See L<perlembed>.
1602 #ifdef USE_5005THREADS
1606 oldscope = PL_scopestack_ix;
1611 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1613 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1619 cxstack_ix = -1; /* start context stack again */
1621 case 0: /* normal completion */
1622 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1627 case 2: /* my_exit() */
1628 while (PL_scopestack_ix > oldscope)
1631 PL_curstash = PL_defstash;
1632 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1633 PL_endav && !PL_minus_c)
1634 call_list(oldscope, PL_endav);
1636 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1637 dump_mstats("after execution: ");
1639 ret = STATUS_NATIVE_EXPORT;
1643 POPSTACK_TO(PL_mainstack);
1646 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1656 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1658 S_vrun_body(pTHX_ va_list args)
1660 I32 oldscope = va_arg(args, I32);
1662 return run_body(oldscope);
1668 S_run_body(pTHX_ I32 oldscope)
1670 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1671 PL_sawampersand ? "Enabling" : "Omitting"));
1673 if (!PL_restartop) {
1674 DEBUG_x(dump_all());
1675 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1676 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1680 #ifdef MACOS_TRADITIONAL
1681 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1682 (gMacPerl_ErrorFormat ? "# " : ""),
1683 MacPerl_MPWFileName(PL_origfilename));
1685 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1689 if (PERLDB_SINGLE && PL_DBsingle)
1690 sv_setiv(PL_DBsingle, 1);
1692 call_list(oldscope, PL_initav);
1698 PL_op = PL_restartop;
1702 else if (PL_main_start) {
1703 CvDEPTH(PL_main_cv) = 1;
1704 PL_op = PL_main_start;
1714 =head1 SV Manipulation Functions
1716 =for apidoc p||get_sv
1718 Returns the SV of the specified Perl scalar. If C<create> is set and the
1719 Perl variable does not exist then it will be created. If C<create> is not
1720 set and the variable does not exist then NULL is returned.
1726 Perl_get_sv(pTHX_ const char *name, I32 create)
1729 #ifdef USE_5005THREADS
1730 if (name[1] == '\0' && !isALPHA(name[0])) {
1731 PADOFFSET tmp = find_threadsv(name);
1732 if (tmp != NOT_IN_PAD)
1733 return THREADSV(tmp);
1735 #endif /* USE_5005THREADS */
1736 gv = gv_fetchpv(name, create, SVt_PV);
1743 =head1 Array Manipulation Functions
1745 =for apidoc p||get_av
1747 Returns the AV of the specified Perl array. If C<create> is set and the
1748 Perl variable does not exist then it will be created. If C<create> is not
1749 set and the variable does not exist then NULL is returned.
1755 Perl_get_av(pTHX_ const char *name, I32 create)
1757 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1766 =head1 Hash Manipulation Functions
1768 =for apidoc p||get_hv
1770 Returns the HV of the specified Perl hash. If C<create> is set and the
1771 Perl variable does not exist then it will be created. If C<create> is not
1772 set and the variable does not exist then NULL is returned.
1778 Perl_get_hv(pTHX_ const char *name, I32 create)
1780 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1789 =head1 CV Manipulation Functions
1791 =for apidoc p||get_cv
1793 Returns the CV of the specified Perl subroutine. If C<create> is set and
1794 the Perl subroutine does not exist then it will be declared (which has the
1795 same effect as saying C<sub name;>). If C<create> is not set and the
1796 subroutine does not exist then NULL is returned.
1802 Perl_get_cv(pTHX_ const char *name, I32 create)
1804 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1805 /* XXX unsafe for threads if eval_owner isn't held */
1806 /* XXX this is probably not what they think they're getting.
1807 * It has the same effect as "sub name;", i.e. just a forward
1809 if (create && !GvCVu(gv))
1810 return newSUB(start_subparse(FALSE, 0),
1811 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1819 /* Be sure to refetch the stack pointer after calling these routines. */
1823 =head1 Callback Functions
1825 =for apidoc p||call_argv
1827 Performs a callback to the specified Perl sub. See L<perlcall>.
1833 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1835 /* See G_* flags in cop.h */
1836 /* null terminated arg list */
1843 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1848 return call_pv(sub_name, flags);
1852 =for apidoc p||call_pv
1854 Performs a callback to the specified Perl sub. See L<perlcall>.
1860 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1861 /* name of the subroutine */
1862 /* See G_* flags in cop.h */
1864 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1868 =for apidoc p||call_method
1870 Performs a callback to the specified Perl method. The blessed object must
1871 be on the stack. See L<perlcall>.
1877 Perl_call_method(pTHX_ const char *methname, I32 flags)
1878 /* name of the subroutine */
1879 /* See G_* flags in cop.h */
1881 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1884 /* May be called with any of a CV, a GV, or an SV containing the name. */
1886 =for apidoc p||call_sv
1888 Performs a callback to the Perl sub whose name is in the SV. See
1895 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1896 /* See G_* flags in cop.h */
1899 LOGOP myop; /* fake syntax tree node */
1902 volatile I32 retval = 0;
1904 bool oldcatch = CATCH_GET;
1909 if (flags & G_DISCARD) {
1914 Zero(&myop, 1, LOGOP);
1915 myop.op_next = Nullop;
1916 if (!(flags & G_NOARGS))
1917 myop.op_flags |= OPf_STACKED;
1918 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1919 (flags & G_ARRAY) ? OPf_WANT_LIST :
1924 EXTEND(PL_stack_sp, 1);
1925 *++PL_stack_sp = sv;
1927 oldscope = PL_scopestack_ix;
1929 if (PERLDB_SUB && PL_curstash != PL_debstash
1930 /* Handle first BEGIN of -d. */
1931 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1932 /* Try harder, since this may have been a sighandler, thus
1933 * curstash may be meaningless. */
1934 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1935 && !(flags & G_NODEBUG))
1936 PL_op->op_private |= OPpENTERSUB_DB;
1938 if (flags & G_METHOD) {
1939 Zero(&method_op, 1, UNOP);
1940 method_op.op_next = PL_op;
1941 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1942 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1943 PL_op = (OP*)&method_op;
1946 if (!(flags & G_EVAL)) {
1948 call_body((OP*)&myop, FALSE);
1949 retval = PL_stack_sp - (PL_stack_base + oldmark);
1950 CATCH_SET(oldcatch);
1953 myop.op_other = (OP*)&myop;
1955 /* we're trying to emulate pp_entertry() here */
1957 register PERL_CONTEXT *cx;
1958 I32 gimme = GIMME_V;
1963 push_return(Nullop);
1964 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1966 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1968 PL_in_eval = EVAL_INEVAL;
1969 if (flags & G_KEEPERR)
1970 PL_in_eval |= EVAL_KEEPERR;
1976 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1978 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1985 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1987 call_body((OP*)&myop, FALSE);
1989 retval = PL_stack_sp - (PL_stack_base + oldmark);
1990 if (!(flags & G_KEEPERR))
1997 /* my_exit() was called */
1998 PL_curstash = PL_defstash;
2001 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2002 Perl_croak(aTHX_ "Callback called exit");
2007 PL_op = PL_restartop;
2011 PL_stack_sp = PL_stack_base + oldmark;
2012 if (flags & G_ARRAY)
2016 *++PL_stack_sp = &PL_sv_undef;
2021 if (PL_scopestack_ix > oldscope) {
2025 register PERL_CONTEXT *cx;
2037 if (flags & G_DISCARD) {
2038 PL_stack_sp = PL_stack_base + oldmark;
2047 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2049 S_vcall_body(pTHX_ va_list args)
2051 OP *myop = va_arg(args, OP*);
2052 int is_eval = va_arg(args, int);
2054 call_body(myop, is_eval);
2060 S_call_body(pTHX_ OP *myop, int is_eval)
2062 if (PL_op == myop) {
2064 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2066 PL_op = Perl_pp_entersub(aTHX); /* this does */
2072 /* Eval a string. The G_EVAL flag is always assumed. */
2075 =for apidoc p||eval_sv
2077 Tells Perl to C<eval> the string in the SV.
2083 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2085 /* See G_* flags in cop.h */
2088 UNOP myop; /* fake syntax tree node */
2089 volatile I32 oldmark = SP - PL_stack_base;
2090 volatile I32 retval = 0;
2096 if (flags & G_DISCARD) {
2103 Zero(PL_op, 1, UNOP);
2104 EXTEND(PL_stack_sp, 1);
2105 *++PL_stack_sp = sv;
2106 oldscope = PL_scopestack_ix;
2108 if (!(flags & G_NOARGS))
2109 myop.op_flags = OPf_STACKED;
2110 myop.op_next = Nullop;
2111 myop.op_type = OP_ENTEREVAL;
2112 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2113 (flags & G_ARRAY) ? OPf_WANT_LIST :
2115 if (flags & G_KEEPERR)
2116 myop.op_flags |= OPf_SPECIAL;
2118 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2120 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2127 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2129 call_body((OP*)&myop,TRUE);
2131 retval = PL_stack_sp - (PL_stack_base + oldmark);
2132 if (!(flags & G_KEEPERR))
2139 /* my_exit() was called */
2140 PL_curstash = PL_defstash;
2143 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2144 Perl_croak(aTHX_ "Callback called exit");
2149 PL_op = PL_restartop;
2153 PL_stack_sp = PL_stack_base + oldmark;
2154 if (flags & G_ARRAY)
2158 *++PL_stack_sp = &PL_sv_undef;
2164 if (flags & G_DISCARD) {
2165 PL_stack_sp = PL_stack_base + oldmark;
2175 =for apidoc p||eval_pv
2177 Tells Perl to C<eval> the given string and return an SV* result.
2183 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2186 SV* sv = newSVpv(p, 0);
2188 eval_sv(sv, G_SCALAR);
2195 if (croak_on_error && SvTRUE(ERRSV)) {
2197 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2203 /* Require a module. */
2206 =head1 Embedding Functions
2208 =for apidoc p||require_pv
2210 Tells Perl to C<require> the file named by the string argument. It is
2211 analogous to the Perl code C<eval "require '$file'">. It's even
2212 implemented that way; consider using load_module instead.
2217 Perl_require_pv(pTHX_ const char *pv)
2221 PUSHSTACKi(PERLSI_REQUIRE);
2223 sv = sv_newmortal();
2224 sv_setpv(sv, "require '");
2227 eval_sv(sv, G_DISCARD);
2233 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2237 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2238 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2242 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2244 /* This message really ought to be max 23 lines.
2245 * Removed -h because the user already knows that option. Others? */
2247 static char *usage_msg[] = {
2248 "-0[octal] specify record separator (\\0, if no argument)",
2249 "-a autosplit mode with -n or -p (splits $_ into @F)",
2250 "-C enable native wide character system interfaces",
2251 "-c check syntax only (runs BEGIN and CHECK blocks)",
2252 "-d[:debugger] run program under debugger",
2253 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2254 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2255 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2256 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2257 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2258 "-l[octal] enable line ending processing, specifies line terminator",
2259 "-[mM][-]module execute `use/no module...' before executing program",
2260 "-n assume 'while (<>) { ... }' loop around program",
2261 "-p assume loop like -n but print line also, like sed",
2262 "-P run program through C preprocessor before compilation",
2263 "-s enable rudimentary parsing for switches after programfile",
2264 "-S look for programfile using PATH environment variable",
2265 "-T enable tainting checks",
2266 "-t enable tainting warnings",
2267 "-u dump core after parsing program",
2268 "-U allow unsafe operations",
2269 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2270 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2271 "-w enable many useful warnings (RECOMMENDED)",
2272 "-W enable all warnings",
2273 "-X disable all warnings",
2274 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2278 char **p = usage_msg;
2280 PerlIO_printf(PerlIO_stdout(),
2281 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2284 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2287 /* convert a string of -D options (or digits) into an int.
2288 * sets *s to point to the char after the options */
2292 Perl_get_debug_opts(pTHX_ char **s)
2296 /* if adding extra options, remember to update DEBUG_MASK */
2297 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2299 for (; isALNUM(**s); (*s)++) {
2300 char *d = strchr(debopts,**s);
2302 i |= 1 << (d - debopts);
2303 else if (ckWARN_d(WARN_DEBUGGING))
2304 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2305 "invalid option -D%c\n", **s);
2310 for (; isALNUM(**s); (*s)++) ;
2313 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2314 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2315 "-Dp not implemented on this platform\n");
2321 /* This routine handles any switches that can be given during run */
2324 Perl_moreswitches(pTHX_ char *s)
2334 SvREFCNT_dec(PL_rs);
2335 if (s[1] == 'x' && s[2]) {
2339 for (s += 2, e = s; *e; e++);
2341 flags = PERL_SCAN_SILENT_ILLDIGIT;
2342 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2343 if (s + numlen < e) {
2344 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2348 PL_rs = newSVpvn("", 0);
2349 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2350 tmps = (U8*)SvPVX(PL_rs);
2351 uvchr_to_utf8(tmps, rschar);
2352 SvCUR_set(PL_rs, UNISKIP(rschar));
2357 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2358 if (rschar & ~((U8)~0))
2359 PL_rs = &PL_sv_undef;
2360 else if (!rschar && numlen >= 2)
2361 PL_rs = newSVpvn("", 0);
2363 char ch = (char)rschar;
2364 PL_rs = newSVpvn(&ch, 1);
2371 PL_unicode = parse_unicode_opts(&s);
2376 while (*s && !isSPACE(*s)) ++s;
2378 PL_splitstr = savepv(PL_splitstr);
2391 /* The following permits -d:Mod to accepts arguments following an =
2392 in the fashion that -MSome::Mod does. */
2393 if (*s == ':' || *s == '=') {
2396 sv = newSVpv("use Devel::", 0);
2398 /* We now allow -d:Module=Foo,Bar */
2399 while(isALNUM(*s) || *s==':') ++s;
2401 sv_catpv(sv, start);
2403 sv_catpvn(sv, start, s-start);
2404 sv_catpv(sv, " split(/,/,q{");
2409 my_setenv("PERL5DB", SvPV(sv, PL_na));
2412 PL_perldb = PERLDB_ALL;
2421 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2422 #else /* !DEBUGGING */
2423 if (ckWARN_d(WARN_DEBUGGING))
2424 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2425 "Recompile perl with -DDEBUGGING to use -D switch\n");
2426 for (s++; isALNUM(*s); s++) ;
2432 usage(PL_origargv[0]);
2436 Safefree(PL_inplace);
2437 #if defined(__CYGWIN__) /* do backup extension automagically */
2438 if (*(s+1) == '\0') {
2439 PL_inplace = savepv(".bak");
2442 #endif /* __CYGWIN__ */
2443 PL_inplace = savepv(s+1);
2445 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2448 if (*s == '-') /* Additional switches on #! line. */
2452 case 'I': /* -I handled both here and in parse_body() */
2455 while (*s && isSPACE(*s))
2460 /* ignore trailing spaces (possibly followed by other switches) */
2462 for (e = p; *e && !isSPACE(*e); e++) ;
2466 } while (*p && *p != '-');
2467 e = savepvn(s, e-s);
2468 incpush(e, TRUE, TRUE, FALSE);
2475 Perl_croak(aTHX_ "No directory specified for -I");
2481 SvREFCNT_dec(PL_ors_sv);
2486 PL_ors_sv = newSVpvn("\n",1);
2487 numlen = 3 + (*s == '0');
2488 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2492 if (RsPARA(PL_rs)) {
2493 PL_ors_sv = newSVpvn("\n\n",2);
2496 PL_ors_sv = newSVsv(PL_rs);
2503 PL_preambleav = newAV();
2505 SV *sv = newSVpvn("use assertions::activate split(/,/,q{",37);
2509 av_push(PL_preambleav, sv);
2512 av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
2515 forbid_setid("-M"); /* XXX ? */
2518 forbid_setid("-m"); /* XXX ? */
2523 /* -M-foo == 'no foo' */
2524 if (*s == '-') { use = "no "; ++s; }
2525 sv = newSVpv(use,0);
2527 /* We allow -M'Module qw(Foo Bar)' */
2528 while(isALNUM(*s) || *s==':') ++s;
2530 sv_catpv(sv, start);
2531 if (*(start-1) == 'm') {
2533 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2534 sv_catpv( sv, " ()");
2538 Perl_croak(aTHX_ "Module name required with -%c option",
2540 sv_catpvn(sv, start, s-start);
2541 sv_catpv(sv, " split(/,/,q{");
2547 PL_preambleav = newAV();
2548 av_push(PL_preambleav, sv);
2551 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2563 PL_doswitches = TRUE;
2577 #ifdef MACOS_TRADITIONAL
2578 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2580 PL_do_undump = TRUE;
2589 PerlIO_printf(PerlIO_stdout(),
2590 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2591 PL_patchlevel, ARCHNAME));
2593 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2594 PerlIO_printf(PerlIO_stdout(),
2595 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2596 PerlIO_printf(PerlIO_stdout(),
2597 Perl_form(aTHX_ " built under %s at %s %s\n",
2598 OSNAME, __DATE__, __TIME__));
2599 PerlIO_printf(PerlIO_stdout(),
2600 Perl_form(aTHX_ " OS Specific Release: %s\n",
2604 #if defined(LOCAL_PATCH_COUNT)
2605 if (LOCAL_PATCH_COUNT > 0)
2606 PerlIO_printf(PerlIO_stdout(),
2607 "\n(with %d registered patch%s, "
2608 "see perl -V for more detail)",
2609 (int)LOCAL_PATCH_COUNT,
2610 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2613 PerlIO_printf(PerlIO_stdout(),
2614 "\n\nCopyright 1987-2003, Larry Wall\n");
2615 #ifdef MACOS_TRADITIONAL
2616 PerlIO_printf(PerlIO_stdout(),
2617 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2618 "maintained by Chris Nandor\n");
2621 PerlIO_printf(PerlIO_stdout(),
2622 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2625 PerlIO_printf(PerlIO_stdout(),
2626 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2627 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2630 PerlIO_printf(PerlIO_stdout(),
2631 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2632 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2635 PerlIO_printf(PerlIO_stdout(),
2636 "atariST series port, ++jrb bammi@cadence.com\n");
2639 PerlIO_printf(PerlIO_stdout(),
2640 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2643 PerlIO_printf(PerlIO_stdout(),
2644 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2647 PerlIO_printf(PerlIO_stdout(),
2648 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2651 PerlIO_printf(PerlIO_stdout(),
2652 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2655 PerlIO_printf(PerlIO_stdout(),
2656 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2659 PerlIO_printf(PerlIO_stdout(),
2660 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2663 PerlIO_printf(PerlIO_stdout(),
2664 "MiNT port by Guido Flohr, 1997-1999\n");
2667 PerlIO_printf(PerlIO_stdout(),
2668 "EPOC port by Olaf Flebbe, 1999-2002\n");
2671 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2672 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2675 #ifdef BINARY_BUILD_NOTICE
2676 BINARY_BUILD_NOTICE;
2678 PerlIO_printf(PerlIO_stdout(),
2680 Perl may be copied only under the terms of either the Artistic License or the\n\
2681 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2682 Complete documentation for Perl, including FAQ lists, should be found on\n\
2683 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2684 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2687 if (! (PL_dowarn & G_WARN_ALL_MASK))
2688 PL_dowarn |= G_WARN_ON;
2692 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2693 if (!specialWARN(PL_compiling.cop_warnings))
2694 SvREFCNT_dec(PL_compiling.cop_warnings);
2695 PL_compiling.cop_warnings = pWARN_ALL ;
2699 PL_dowarn = G_WARN_ALL_OFF;
2700 if (!specialWARN(PL_compiling.cop_warnings))
2701 SvREFCNT_dec(PL_compiling.cop_warnings);
2702 PL_compiling.cop_warnings = pWARN_NONE ;
2707 if (s[1] == '-') /* Additional switches on #! line. */
2712 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2718 #ifdef ALTERNATE_SHEBANG
2719 case 'S': /* OS/2 needs -S on "extproc" line. */
2727 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2732 /* compliments of Tom Christiansen */
2734 /* unexec() can be found in the Gnu emacs distribution */
2735 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2738 Perl_my_unexec(pTHX)
2746 prog = newSVpv(BIN_EXP, 0);
2747 sv_catpv(prog, "/perl");
2748 file = newSVpv(PL_origfilename, 0);
2749 sv_catpv(file, ".perldump");
2751 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2752 /* unexec prints msg to stderr in case of failure */
2753 PerlProc_exit(status);
2756 # include <lib$routines.h>
2757 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2759 ABORT(); /* for use with undump */
2764 /* initialize curinterp */
2770 # define PERLVAR(var,type)
2771 # define PERLVARA(var,n,type)
2772 # if defined(PERL_IMPLICIT_CONTEXT)
2773 # if defined(USE_5005THREADS)
2774 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2775 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2776 # else /* !USE_5005THREADS */
2777 # define PERLVARI(var,type,init) aTHX->var = init;
2778 # define PERLVARIC(var,type,init) aTHX->var = init;
2779 # endif /* USE_5005THREADS */
2781 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2782 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2784 # include "intrpvar.h"
2785 # ifndef USE_5005THREADS
2786 # include "thrdvar.h"
2793 # define PERLVAR(var,type)
2794 # define PERLVARA(var,n,type)
2795 # define PERLVARI(var,type,init) PL_##var = init;
2796 # define PERLVARIC(var,type,init) PL_##var = init;
2797 # include "intrpvar.h"
2798 # ifndef USE_5005THREADS
2799 # include "thrdvar.h"
2810 S_init_main_stash(pTHX)
2814 PL_curstash = PL_defstash = newHV();
2815 PL_curstname = newSVpvn("main",4);
2816 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2817 SvREFCNT_dec(GvHV(gv));
2818 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2820 HvNAME(PL_defstash) = savepv("main");
2821 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2822 GvMULTI_on(PL_incgv);
2823 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2824 GvMULTI_on(PL_hintgv);
2825 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2826 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2827 GvMULTI_on(PL_errgv);
2828 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2829 GvMULTI_on(PL_replgv);
2830 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2831 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2832 sv_setpvn(ERRSV, "", 0);
2833 PL_curstash = PL_defstash;
2834 CopSTASH_set(&PL_compiling, PL_defstash);
2835 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2836 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2837 /* We must init $/ before switches are processed. */
2838 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2842 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2846 char *cpp_discard_flag;
2852 PL_origfilename = savepv("-e");
2855 /* if find_script() returns, it returns a malloc()-ed value */
2856 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2858 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2859 char *s = scriptname + 8;
2860 *fdscript = atoi(s);
2864 scriptname = savepv(s + 1);
2865 Safefree(PL_origfilename);
2866 PL_origfilename = scriptname;
2871 CopFILE_free(PL_curcop);
2872 CopFILE_set(PL_curcop, PL_origfilename);
2873 if (strEQ(PL_origfilename,"-"))
2875 if (*fdscript >= 0) {
2876 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2877 # if defined(HAS_FCNTL) && defined(F_SETFD)
2879 /* ensure close-on-exec */
2880 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2883 else if (PL_preprocess) {
2884 char *cpp_cfg = CPPSTDIN;
2885 SV *cpp = newSVpvn("",0);
2886 SV *cmd = NEWSV(0,0);
2888 if (strEQ(cpp_cfg, "cppstdin"))
2889 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2890 sv_catpv(cpp, cpp_cfg);
2893 sv_catpvn(sv, "-I", 2);
2894 sv_catpv(sv,PRIVLIB_EXP);
2897 DEBUG_P(PerlIO_printf(Perl_debug_log,
2898 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2899 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2901 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2908 cpp_discard_flag = "";
2910 cpp_discard_flag = "-C";
2914 perl = os2_execname(aTHX);
2916 perl = PL_origargv[0];
2920 /* This strips off Perl comments which might interfere with
2921 the C pre-processor, including #!. #line directives are
2922 deliberately stripped to avoid confusion with Perl's version
2923 of #line. FWP played some golf with it so it will fit
2924 into VMS's 255 character buffer.
2927 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2929 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2931 Perl_sv_setpvf(aTHX_ cmd, "\
2932 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2933 perl, quote, code, quote, scriptname, cpp,
2934 cpp_discard_flag, sv, CPPMINUS);
2936 PL_doextract = FALSE;
2937 # ifdef IAMSUID /* actually, this is caught earlier */
2938 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2940 (void)seteuid(PL_uid); /* musn't stay setuid root */
2942 # ifdef HAS_SETREUID
2943 (void)setreuid((Uid_t)-1, PL_uid);
2945 # ifdef HAS_SETRESUID
2946 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2948 PerlProc_setuid(PL_uid);
2952 if (PerlProc_geteuid() != PL_uid)
2953 Perl_croak(aTHX_ "Can't do seteuid!\n");
2955 # endif /* IAMSUID */
2957 DEBUG_P(PerlIO_printf(Perl_debug_log,
2958 "PL_preprocess: cmd=\"%s\"\n",
2961 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2965 else if (!*scriptname) {
2966 forbid_setid("program input from stdin");
2967 PL_rsfp = PerlIO_stdin();
2970 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2971 # if defined(HAS_FCNTL) && defined(F_SETFD)
2973 /* ensure close-on-exec */
2974 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2979 # ifndef IAMSUID /* in case script is not readable before setuid */
2981 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2982 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2986 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2987 BIN_EXP, (int)PERL_REVISION,
2989 (int)PERL_SUBVERSION), PL_origargv);
2991 Perl_croak(aTHX_ "Can't do setuid\n");
2997 Perl_croak(aTHX_ "Can't open perl script: %s\n",
3000 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
3001 CopFILE(PL_curcop), Strerror(errno));
3007 * I_SYSSTATVFS HAS_FSTATVFS
3009 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
3010 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
3011 * here so that metaconfig picks them up. */
3015 S_fd_on_nosuid_fs(pTHX_ int fd)
3017 int check_okay = 0; /* able to do all the required sys/libcalls */
3018 int on_nosuid = 0; /* the fd is on a nosuid fs */
3020 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3021 * fstatvfs() is UNIX98.
3022 * fstatfs() is 4.3 BSD.
3023 * ustat()+getmnt() is pre-4.3 BSD.
3024 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3025 * an irrelevant filesystem while trying to reach the right one.
3028 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3030 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3031 defined(HAS_FSTATVFS)
3032 # define FD_ON_NOSUID_CHECK_OKAY
3033 struct statvfs stfs;
3035 check_okay = fstatvfs(fd, &stfs) == 0;
3036 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3037 # endif /* fstatvfs */
3039 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3040 defined(PERL_MOUNT_NOSUID) && \
3041 defined(HAS_FSTATFS) && \
3042 defined(HAS_STRUCT_STATFS) && \
3043 defined(HAS_STRUCT_STATFS_F_FLAGS)
3044 # define FD_ON_NOSUID_CHECK_OKAY
3047 check_okay = fstatfs(fd, &stfs) == 0;
3048 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3049 # endif /* fstatfs */
3051 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3052 defined(PERL_MOUNT_NOSUID) && \
3053 defined(HAS_FSTAT) && \
3054 defined(HAS_USTAT) && \
3055 defined(HAS_GETMNT) && \
3056 defined(HAS_STRUCT_FS_DATA) && \
3058 # define FD_ON_NOSUID_CHECK_OKAY
3061 if (fstat(fd, &fdst) == 0) {
3063 if (ustat(fdst.st_dev, &us) == 0) {
3065 /* NOSTAT_ONE here because we're not examining fields which
3066 * vary between that case and STAT_ONE. */
3067 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3068 size_t cmplen = sizeof(us.f_fname);
3069 if (sizeof(fsd.fd_req.path) < cmplen)
3070 cmplen = sizeof(fsd.fd_req.path);
3071 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3072 fdst.st_dev == fsd.fd_req.dev) {
3074 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3080 # endif /* fstat+ustat+getmnt */
3082 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3083 defined(HAS_GETMNTENT) && \
3084 defined(HAS_HASMNTOPT) && \
3085 defined(MNTOPT_NOSUID)
3086 # define FD_ON_NOSUID_CHECK_OKAY
3087 FILE *mtab = fopen("/etc/mtab", "r");
3088 struct mntent *entry;
3091 if (mtab && (fstat(fd, &stb) == 0)) {
3092 while (entry = getmntent(mtab)) {
3093 if (stat(entry->mnt_dir, &fsb) == 0
3094 && fsb.st_dev == stb.st_dev)
3096 /* found the filesystem */
3098 if (hasmntopt(entry, MNTOPT_NOSUID))
3101 } /* A single fs may well fail its stat(). */
3106 # endif /* getmntent+hasmntopt */
3109 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3112 #endif /* IAMSUID */
3115 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3121 /* do we need to emulate setuid on scripts? */
3123 /* This code is for those BSD systems that have setuid #! scripts disabled
3124 * in the kernel because of a security problem. Merely defining DOSUID
3125 * in perl will not fix that problem, but if you have disabled setuid
3126 * scripts in the kernel, this will attempt to emulate setuid and setgid
3127 * on scripts that have those now-otherwise-useless bits set. The setuid
3128 * root version must be called suidperl or sperlN.NNN. If regular perl
3129 * discovers that it has opened a setuid script, it calls suidperl with
3130 * the same argv that it had. If suidperl finds that the script it has
3131 * just opened is NOT setuid root, it sets the effective uid back to the
3132 * uid. We don't just make perl setuid root because that loses the
3133 * effective uid we had before invoking perl, if it was different from the
3136 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3137 * be defined in suidperl only. suidperl must be setuid root. The
3138 * Configure script will set this up for you if you want it.
3144 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3145 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3146 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3151 #ifndef HAS_SETREUID
3152 /* On this access check to make sure the directories are readable,
3153 * there is actually a small window that the user could use to make
3154 * filename point to an accessible directory. So there is a faint
3155 * chance that someone could execute a setuid script down in a
3156 * non-accessible directory. I don't know what to do about that.
3157 * But I don't think it's too important. The manual lies when
3158 * it says access() is useful in setuid programs.
3160 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
3161 Perl_croak(aTHX_ "Permission denied");
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)
3182 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
3183 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3184 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
3185 Perl_croak(aTHX_ "Permission denied");
3187 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3188 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3189 (void)PerlIO_close(PL_rsfp);
3190 Perl_croak(aTHX_ "Permission denied\n");
3194 setreuid(PL_uid,PL_euid) < 0
3196 # if defined(HAS_SETRESUID)
3197 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3200 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3201 Perl_croak(aTHX_ "Can't reswap uid and euid");
3202 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3203 Perl_croak(aTHX_ "Permission denied\n");
3205 #endif /* HAS_SETREUID */
3206 #endif /* IAMSUID */
3208 if (!S_ISREG(PL_statbuf.st_mode))
3209 Perl_croak(aTHX_ "Permission denied");
3210 if (PL_statbuf.st_mode & S_IWOTH)
3211 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3212 PL_doswitches = FALSE; /* -s is insecure in suid */
3213 CopLINE_inc(PL_curcop);
3214 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3215 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3216 Perl_croak(aTHX_ "No #! line");
3217 s = SvPV(PL_linestr,n_a)+2;
3219 while (!isSPACE(*s)) s++;
3220 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3221 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3222 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3223 Perl_croak(aTHX_ "Not a perl script");
3224 while (*s == ' ' || *s == '\t') s++;
3226 * #! arg must be what we saw above. They can invoke it by
3227 * mentioning suidperl explicitly, but they may not add any strange
3228 * arguments beyond what #! says if they do invoke suidperl that way.
3230 len = strlen(validarg);
3231 if (strEQ(validarg," PHOOEY ") ||
3232 strnNE(s,validarg,len) || !isSPACE(s[len]))
3233 Perl_croak(aTHX_ "Args must match #! line");
3236 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3237 PL_euid == PL_statbuf.st_uid)
3239 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3240 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3241 #endif /* IAMSUID */
3243 if (PL_euid) { /* oops, we're not the setuid root perl */
3244 (void)PerlIO_close(PL_rsfp);
3248 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3249 (int)PERL_REVISION, (int)PERL_VERSION,
3250 (int)PERL_SUBVERSION), PL_origargv);
3253 Perl_croak(aTHX_ "Can't do setuid\n");
3256 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3258 (void)setegid(PL_statbuf.st_gid);
3261 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3263 #ifdef HAS_SETRESGID
3264 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3266 PerlProc_setgid(PL_statbuf.st_gid);
3270 if (PerlProc_getegid() != PL_statbuf.st_gid)
3271 Perl_croak(aTHX_ "Can't do setegid!\n");
3273 if (PL_statbuf.st_mode & S_ISUID) {
3274 if (PL_statbuf.st_uid != PL_euid)
3276 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3279 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3281 #ifdef HAS_SETRESUID
3282 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3284 PerlProc_setuid(PL_statbuf.st_uid);
3288 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3289 Perl_croak(aTHX_ "Can't do seteuid!\n");
3291 else if (PL_uid) { /* oops, mustn't run as root */
3293 (void)seteuid((Uid_t)PL_uid);
3296 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3298 #ifdef HAS_SETRESUID
3299 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3301 PerlProc_setuid((Uid_t)PL_uid);
3305 if (PerlProc_geteuid() != PL_uid)
3306 Perl_croak(aTHX_ "Can't do seteuid!\n");
3309 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3310 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3313 else if (PL_preprocess)
3314 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3315 else if (fdscript >= 0)
3316 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3318 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
3320 /* We absolutely must clear out any saved ids here, so we */
3321 /* exec the real perl, substituting fd script for scriptname. */
3322 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3323 PerlIO_rewind(PL_rsfp);
3324 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3325 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3326 if (!PL_origargv[which])
3327 Perl_croak(aTHX_ "Permission denied");
3328 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3329 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3330 #if defined(HAS_FCNTL) && defined(F_SETFD)
3331 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3334 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3335 (int)PERL_REVISION, (int)PERL_VERSION,
3336 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3338 Perl_croak(aTHX_ "Can't do setuid\n");
3339 #endif /* IAMSUID */
3341 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3342 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3343 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3344 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3346 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3349 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3350 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3351 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3352 /* not set-id, must be wrapped */
3358 S_find_beginning(pTHX)
3360 register char *s, *s2;
3361 #ifdef MACOS_TRADITIONAL
3365 /* skip forward in input to the real script? */
3368 #ifdef MACOS_TRADITIONAL
3369 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3371 while (PL_doextract || gMacPerl_AlwaysExtract) {
3372 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3373 if (!gMacPerl_AlwaysExtract)
3374 Perl_croak(aTHX_ "No Perl script found in input\n");
3376 if (PL_doextract) /* require explicit override ? */
3377 if (!OverrideExtract(PL_origfilename))
3378 Perl_croak(aTHX_ "User aborted script\n");
3380 PL_doextract = FALSE;
3382 /* Pater peccavi, file does not have #! */
3383 PerlIO_rewind(PL_rsfp);
3388 while (PL_doextract) {
3389 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3390 Perl_croak(aTHX_ "No Perl script found in input\n");
3393 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3394 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3395 PL_doextract = FALSE;
3396 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3398 while (*s == ' ' || *s == '\t') s++;
3400 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3401 if (strnEQ(s2-4,"perl",4))
3403 while ((s = moreswitches(s)))
3406 #ifdef MACOS_TRADITIONAL
3407 /* We are always searching for the #!perl line in MacPerl,
3408 * so if we find it, still keep the line count correct
3409 * by counting lines we already skipped over
3411 for (; maclines > 0 ; maclines--)
3412 PerlIO_ungetc(PL_rsfp, '\n');
3416 /* gMacPerl_AlwaysExtract is false in MPW tool */
3417 } else if (gMacPerl_AlwaysExtract) {
3428 PL_uid = PerlProc_getuid();
3429 PL_euid = PerlProc_geteuid();
3430 PL_gid = PerlProc_getgid();
3431 PL_egid = PerlProc_getegid();
3433 PL_uid |= PL_gid << 16;
3434 PL_euid |= PL_egid << 16;
3436 /* Should not happen: */
3437 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3438 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3441 /* This is used very early in the lifetime of the program,
3442 * before even the options are parsed, so PL_tainting has
3443 * not been initialized properly. */
3445 Perl_doing_taint(int argc, char *argv[], char *envp[])
3447 #ifndef PERL_IMPLICIT_SYS
3448 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3449 * before we have an interpreter-- and the whole point of this
3450 * function is to be called at such an early stage. If you are on
3451 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3452 * "tainted because running with altered effective ids', you'll
3453 * have to add your own checks somewhere in here. The two most
3454 * known samples of 'implicitness' are Win32 and NetWare, neither
3455 * of which has much of concept of 'uids'. */
3456 int uid = PerlProc_getuid();
3457 int euid = PerlProc_geteuid();
3458 int gid = PerlProc_getgid();
3459 int egid = PerlProc_getegid();
3465 if (uid && (euid != uid || egid != gid))
3467 #endif /* !PERL_IMPLICIT_SYS */
3468 /* This is a really primitive check; environment gets ignored only
3469 * if -T are the first chars together; otherwise one gets
3470 * "Too late" message. */
3471 if ( argc > 1 && argv[1][0] == '-'
3472 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3478 S_forbid_setid(pTHX_ char *s)
3480 if (PL_euid != PL_uid)
3481 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3482 if (PL_egid != PL_gid)
3483 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3487 Perl_init_debugger(pTHX)
3489 HV *ostash = PL_curstash;
3491 PL_curstash = PL_debstash;
3492 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3493 AvREAL_off(PL_dbargs);
3494 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3495 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3496 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3497 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3498 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3499 sv_setiv(PL_DBsingle, 0);
3500 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3501 sv_setiv(PL_DBtrace, 0);
3502 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3503 sv_setiv(PL_DBsignal, 0);
3504 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3505 sv_setiv(PL_DBassertion, 0);
3506 PL_curstash = ostash;
3509 #ifndef STRESS_REALLOC
3510 #define REASONABLE(size) (size)
3512 #define REASONABLE(size) (1) /* unreasonable */
3516 Perl_init_stacks(pTHX)
3518 /* start with 128-item stack and 8K cxstack */
3519 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3520 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3521 PL_curstackinfo->si_type = PERLSI_MAIN;
3522 PL_curstack = PL_curstackinfo->si_stack;
3523 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3525 PL_stack_base = AvARRAY(PL_curstack);
3526 PL_stack_sp = PL_stack_base;
3527 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3529 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3532 PL_tmps_max = REASONABLE(128);
3534 New(54,PL_markstack,REASONABLE(32),I32);
3535 PL_markstack_ptr = PL_markstack;
3536 PL_markstack_max = PL_markstack + REASONABLE(32);
3540 New(54,PL_scopestack,REASONABLE(32),I32);
3541 PL_scopestack_ix = 0;
3542 PL_scopestack_max = REASONABLE(32);
3544 New(54,PL_savestack,REASONABLE(128),ANY);
3545 PL_savestack_ix = 0;
3546 PL_savestack_max = REASONABLE(128);
3548 New(54,PL_retstack,REASONABLE(16),OP*);
3550 PL_retstack_max = REASONABLE(16);
3558 while (PL_curstackinfo->si_next)
3559 PL_curstackinfo = PL_curstackinfo->si_next;
3560 while (PL_curstackinfo) {
3561 PERL_SI *p = PL_curstackinfo->si_prev;
3562 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3563 Safefree(PL_curstackinfo->si_cxstack);
3564 Safefree(PL_curstackinfo);
3565 PL_curstackinfo = p;
3567 Safefree(PL_tmps_stack);
3568 Safefree(PL_markstack);
3569 Safefree(PL_scopestack);
3570 Safefree(PL_savestack);
3571 Safefree(PL_retstack);
3580 lex_start(PL_linestr);
3582 PL_subname = newSVpvn("main",4);
3586 S_init_predump_symbols(pTHX)
3591 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3592 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3593 GvMULTI_on(PL_stdingv);
3594 io = GvIOp(PL_stdingv);
3595 IoTYPE(io) = IoTYPE_RDONLY;
3596 IoIFP(io) = PerlIO_stdin();
3597 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3599 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3601 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3604 IoTYPE(io) = IoTYPE_WRONLY;
3605 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3607 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3609 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3611 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3612 GvMULTI_on(PL_stderrgv);
3613 io = GvIOp(PL_stderrgv);
3614 IoTYPE(io) = IoTYPE_WRONLY;
3615 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3616 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3618 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3620 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3623 Safefree(PL_osname);
3624 PL_osname = savepv(OSNAME);
3628 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3631 argc--,argv++; /* skip name of script */
3632 if (PL_doswitches) {
3633 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3636 if (argv[0][1] == '-' && !argv[0][2]) {
3640 if ((s = strchr(argv[0], '='))) {
3642 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3645 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3648 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3649 GvMULTI_on(PL_argvgv);
3650 (void)gv_AVadd(PL_argvgv);
3651 av_clear(GvAVn(PL_argvgv));
3652 for (; argc > 0; argc--,argv++) {
3653 SV *sv = newSVpv(argv[0],0);
3654 av_push(GvAVn(PL_argvgv),sv);
3655 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3656 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3659 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3660 (void)sv_utf8_decode(sv);
3665 #ifdef HAS_PROCSELFEXE
3666 /* This is a function so that we don't hold on to MAXPATHLEN
3667 bytes of stack longer than necessary
3670 S_procself_val(pTHX_ SV *sv, char *arg0)
3672 char buf[MAXPATHLEN];
3673 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3675 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3676 includes a spurious NUL which will cause $^X to fail in system
3677 or backticks (this will prevent extensions from being built and
3678 many tests from working). readlink is not meant to add a NUL.
3679 Normal readlink works fine.
3681 if (len > 0 && buf[len-1] == '\0') {
3685 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3686 returning the text "unknown" from the readlink rather than the path
3687 to the executable (or returning an error from the readlink). Any valid
3688 path has a '/' in it somewhere, so use that to validate the result.
3689 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3691 if (len > 0 && memchr(buf, '/', len)) {
3692 sv_setpvn(sv,buf,len);
3698 #endif /* HAS_PROCSELFEXE */
3701 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3707 PL_toptarget = NEWSV(0,0);
3708 sv_upgrade(PL_toptarget, SVt_PVFM);
3709 sv_setpvn(PL_toptarget, "", 0);
3710 PL_bodytarget = NEWSV(0,0);
3711 sv_upgrade(PL_bodytarget, SVt_PVFM);
3712 sv_setpvn(PL_bodytarget, "", 0);
3713 PL_formtarget = PL_bodytarget;
3717 init_argv_symbols(argc,argv);
3719 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3720 #ifdef MACOS_TRADITIONAL
3721 /* $0 is not majick on a Mac */
3722 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3724 sv_setpv(GvSV(tmpgv),PL_origfilename);
3725 magicname("0", "0", 1);
3728 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3729 #ifdef HAS_PROCSELFEXE
3730 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3733 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3735 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3739 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3741 GvMULTI_on(PL_envgv);
3742 hv = GvHVn(PL_envgv);
3743 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3744 #ifdef USE_ENVIRON_ARRAY
3745 /* Note that if the supplied env parameter is actually a copy
3746 of the global environ then it may now point to free'd memory
3747 if the environment has been modified since. To avoid this
3748 problem we treat env==NULL as meaning 'use the default'
3753 # ifdef USE_ITHREADS
3754 && PL_curinterp == aTHX
3758 environ[0] = Nullch;
3761 for (; *env; env++) {
3762 if (!(s = strchr(*env,'=')))
3769 sv = newSVpv(s+1, 0);
3770 (void)hv_store(hv, *env, s - *env, sv, 0);
3774 #endif /* USE_ENVIRON_ARRAY */
3777 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3778 SvREADONLY_off(GvSV(tmpgv));
3779 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3780 SvREADONLY_on(GvSV(tmpgv));
3782 #ifdef THREADS_HAVE_PIDS
3783 PL_ppid = (IV)getppid();
3786 /* touch @F array to prevent spurious warnings 20020415 MJD */
3788 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3790 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3791 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3792 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3796 S_init_perllib(pTHX)
3801 s = PerlEnv_getenv("PERL5LIB");
3803 incpush(s, TRUE, TRUE, TRUE);
3805 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3807 /* Treat PERL5?LIB as a possible search list logical name -- the
3808 * "natural" VMS idiom for a Unix path string. We allow each
3809 * element to be a set of |-separated directories for compatibility.
3813 if (my_trnlnm("PERL5LIB",buf,0))
3814 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3816 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3820 /* Use the ~-expanded versions of APPLLIB (undocumented),
3821 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3824 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3828 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3830 #ifdef MACOS_TRADITIONAL
3833 SV * privdir = NEWSV(55, 0);
3834 char * macperl = PerlEnv_getenv("MACPERL");
3839 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3840 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3841 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3842 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3843 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3844 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3846 SvREFCNT_dec(privdir);
3849 incpush(":", FALSE, FALSE, TRUE);
3852 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3855 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3857 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3861 /* sitearch is always relative to sitelib on Windows for
3862 * DLL-based path intuition to work correctly */
3863 # if !defined(WIN32)
3864 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3870 /* this picks up sitearch as well */
3871 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3873 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3877 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3878 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3881 #ifdef PERL_VENDORARCH_EXP
3882 /* vendorarch is always relative to vendorlib on Windows for
3883 * DLL-based path intuition to work correctly */
3884 # if !defined(WIN32)
3885 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3889 #ifdef PERL_VENDORLIB_EXP
3891 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3893 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3897 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3898 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3901 #ifdef PERL_OTHERLIBDIRS
3902 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3906 incpush(".", FALSE, FALSE, TRUE);
3907 #endif /* MACOS_TRADITIONAL */
3910 #if defined(DOSISH) || defined(EPOC)
3911 # define PERLLIB_SEP ';'
3914 # define PERLLIB_SEP '|'
3916 # if defined(MACOS_TRADITIONAL)
3917 # define PERLLIB_SEP ','
3919 # define PERLLIB_SEP ':'
3923 #ifndef PERLLIB_MANGLE
3924 # define PERLLIB_MANGLE(s,n) (s)
3928 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3930 SV *subdir = Nullsv;
3935 if (addsubdirs || addoldvers) {
3936 subdir = sv_newmortal();
3939 /* Break at all separators */
3941 SV *libdir = NEWSV(55,0);
3944 /* skip any consecutive separators */
3946 while ( *p == PERLLIB_SEP ) {
3947 /* Uncomment the next line for PATH semantics */
3948 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3953 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3954 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3959 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3960 p = Nullch; /* break out */
3962 #ifdef MACOS_TRADITIONAL
3963 if (!strchr(SvPVX(libdir), ':')) {
3966 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3968 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3969 sv_catpv(libdir, ":");
3973 * BEFORE pushing libdir onto @INC we may first push version- and
3974 * archname-specific sub-directories.
3976 if (addsubdirs || addoldvers) {
3977 #ifdef PERL_INC_VERSION_LIST
3978 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3979 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3980 const char **incver;
3987 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3989 while (unix[len-1] == '/') len--; /* Cosmetic */
3990 sv_usepvn(libdir,unix,len);
3993 PerlIO_printf(Perl_error_log,
3994 "Failed to unixify @INC element \"%s\"\n",
3998 #ifdef MACOS_TRADITIONAL
3999 #define PERL_AV_SUFFIX_FMT ""
4000 #define PERL_ARCH_FMT "%s:"
4001 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
4003 #define PERL_AV_SUFFIX_FMT "/"
4004 #define PERL_ARCH_FMT "/%s"
4005 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
4007 /* .../version/archname if -d .../version/archname */
4008 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
4010 (int)PERL_REVISION, (int)PERL_VERSION,
4011 (int)PERL_SUBVERSION, ARCHNAME);
4012 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4013 S_ISDIR(tmpstatbuf.st_mode))
4014 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4016 /* .../version if -d .../version */
4017 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4018 (int)PERL_REVISION, (int)PERL_VERSION,
4019 (int)PERL_SUBVERSION);
4020 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4021 S_ISDIR(tmpstatbuf.st_mode))
4022 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4024 /* .../archname if -d .../archname */
4025 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4026 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4027 S_ISDIR(tmpstatbuf.st_mode))
4028 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4031 #ifdef PERL_INC_VERSION_LIST
4033 for (incver = incverlist; *incver; incver++) {
4034 /* .../xxx if -d .../xxx */
4035 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4036 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4037 S_ISDIR(tmpstatbuf.st_mode))
4038 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4044 /* finally push this lib directory on the end of @INC */
4045 av_push(GvAVn(PL_incgv), libdir);
4049 #ifdef USE_5005THREADS
4050 STATIC struct perl_thread *
4051 S_init_main_thread(pTHX)
4053 #if !defined(PERL_IMPLICIT_CONTEXT)
4054 struct perl_thread *thr;
4058 Newz(53, thr, 1, struct perl_thread);
4059 PL_curcop = &PL_compiling;
4060 thr->interp = PERL_GET_INTERP;
4061 thr->cvcache = newHV();
4062 thr->threadsv = newAV();
4063 /* thr->threadsvp is set when find_threadsv is called */
4064 thr->specific = newAV();
4065 thr->flags = THRf_R_JOINABLE;
4066 MUTEX_INIT(&thr->mutex);
4067 /* Handcraft thrsv similarly to mess_sv */
4068 New(53, PL_thrsv, 1, SV);
4069 Newz(53, xpv, 1, XPV);
4070 SvFLAGS(PL_thrsv) = SVt_PV;
4071 SvANY(PL_thrsv) = (void*)xpv;
4072 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4073 SvPVX(PL_thrsv) = (char*)thr;
4074 SvCUR_set(PL_thrsv, sizeof(thr));
4075 SvLEN_set(PL_thrsv, sizeof(thr));
4076 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4077 thr->oursv = PL_thrsv;
4078 PL_chopset = " \n-";
4081 MUTEX_LOCK(&PL_threads_mutex);
4087 MUTEX_UNLOCK(&PL_threads_mutex);
4089 #ifdef HAVE_THREAD_INTERN
4090 Perl_init_thread_intern(thr);
4093 #ifdef SET_THREAD_SELF
4094 SET_THREAD_SELF(thr);
4096 thr->self = pthread_self();
4097 #endif /* SET_THREAD_SELF */
4101 * These must come after the thread self setting
4102 * because sv_setpvn does SvTAINT and the taint
4103 * fields thread selfness being set.
4105 PL_toptarget = NEWSV(0,0);
4106 sv_upgrade(PL_toptarget, SVt_PVFM);
4107 sv_setpvn(PL_toptarget, "", 0);
4108 PL_bodytarget = NEWSV(0,0);
4109 sv_upgrade(PL_bodytarget, SVt_PVFM);
4110 sv_setpvn(PL_bodytarget, "", 0);
4111 PL_formtarget = PL_bodytarget;
4112 thr->errsv = newSVpvn("", 0);
4113 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4116 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4117 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4118 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4119 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4120 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4121 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4123 PL_reginterp_cnt = 0;
4127 #endif /* USE_5005THREADS */
4130 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4133 line_t oldline = CopLINE(PL_curcop);
4139 while (AvFILL(paramList) >= 0) {
4140 cv = (CV*)av_shift(paramList);
4142 if (paramList == PL_beginav) {
4143 /* save PL_beginav for compiler */
4144 if (! PL_beginav_save)
4145 PL_beginav_save = newAV();
4146 av_push(PL_beginav_save, (SV*)cv);
4148 else if (paramList == PL_checkav) {
4149 /* save PL_checkav for compiler */
4150 if (! PL_checkav_save)
4151 PL_checkav_save = newAV();
4152 av_push(PL_checkav_save, (SV*)cv);
4157 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4158 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4164 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4168 (void)SvPV(atsv, len);
4170 PL_curcop = &PL_compiling;
4171 CopLINE_set(PL_curcop, oldline);
4172 if (paramList == PL_beginav)
4173 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4175 Perl_sv_catpvf(aTHX_ atsv,
4176 "%s failed--call queue aborted",
4177 paramList == PL_checkav ? "CHECK"
4178 : paramList == PL_initav ? "INIT"
4180 while (PL_scopestack_ix > oldscope)
4183 Perl_croak(aTHX_ "%"SVf"", atsv);
4190 /* my_exit() was called */
4191 while (PL_scopestack_ix > oldscope)
4194 PL_curstash = PL_defstash;
4195 PL_curcop = &PL_compiling;
4196 CopLINE_set(PL_curcop, oldline);
4198 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4199 if (paramList == PL_beginav)
4200 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4202 Perl_croak(aTHX_ "%s failed--call queue aborted",
4203 paramList == PL_checkav ? "CHECK"
4204 : paramList == PL_initav ? "INIT"
4211 PL_curcop = &PL_compiling;
4212 CopLINE_set(PL_curcop, oldline);
4215 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4223 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4225 S_vcall_list_body(pTHX_ va_list args)
4227 CV *cv = va_arg(args, CV*);
4228 return call_list_body(cv);
4233 S_call_list_body(pTHX_ CV *cv)
4235 PUSHMARK(PL_stack_sp);
4236 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4241 Perl_my_exit(pTHX_ U32 status)
4243 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4244 thr, (unsigned long) status));
4253 STATUS_NATIVE_SET(status);
4260 Perl_my_failure_exit(pTHX)
4263 if (vaxc$errno & 1) {
4264 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4265 STATUS_NATIVE_SET(44);
4268 if (!vaxc$errno && errno) /* unlikely */
4269 STATUS_NATIVE_SET(44);
4271 STATUS_NATIVE_SET(vaxc$errno);
4276 STATUS_POSIX_SET(errno);
4278 exitstatus = STATUS_POSIX >> 8;
4279 if (exitstatus & 255)
4280 STATUS_POSIX_SET(exitstatus);
4282 STATUS_POSIX_SET(255);
4289 S_my_exit_jump(pTHX)
4291 register PERL_CONTEXT *cx;
4296 SvREFCNT_dec(PL_e_script);
4297 PL_e_script = Nullsv;
4300 POPSTACK_TO(PL_mainstack);
4301 if (cxstack_ix >= 0) {
4304 POPBLOCK(cx,PL_curpm);
4312 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4315 p = SvPVX(PL_e_script);
4316 nl = strchr(p, '\n');
4317 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4319 filter_del(read_e_script);
4322 sv_catpvn(buf_sv, p, nl-p);
4323 sv_chop(PL_e_script, nl);