3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #define PERL_IN_PERL_C
18 #include "patchlevel.h" /* for local_patches */
22 char *nw_get_sitelib(const char *pl);
25 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
42 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
43 char *getenv (char *); /* Usually in <stdlib.h> */
46 static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
54 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
60 #if defined(USE_ITHREADS)
61 # define INIT_TLS_AND_INTERP \
63 if (!PL_curinterp) { \
64 PERL_SET_INTERP(my_perl); \
67 PERL_SET_THX(my_perl); \
69 MUTEX_INIT(&PL_dollarzero_mutex); \
72 PERL_SET_THX(my_perl); \
76 # define INIT_TLS_AND_INTERP \
78 if (!PL_curinterp) { \
79 PERL_SET_INTERP(my_perl); \
81 PERL_SET_THX(my_perl); \
85 #ifdef PERL_IMPLICIT_SYS
87 perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
88 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
89 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
90 struct IPerlDir* ipD, struct IPerlSock* ipS,
91 struct IPerlProc* ipP)
93 PerlInterpreter *my_perl;
94 /* New() needs interpreter, so call malloc() instead */
95 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
97 Zero(my_perl, 1, PerlInterpreter);
113 =head1 Embedding Functions
115 =for apidoc perl_alloc
117 Allocates a new Perl interpreter. See L<perlembed>.
125 PerlInterpreter *my_perl;
126 #ifdef USE_5005THREADS
130 /* New() needs interpreter, so call malloc() instead */
131 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
134 Zero(my_perl, 1, PerlInterpreter);
137 #endif /* PERL_IMPLICIT_SYS */
140 =for apidoc perl_construct
142 Initializes a new Perl interpreter. See L<perlembed>.
148 perl_construct(pTHXx)
152 PL_perl_destruct_level = 1;
154 if (PL_perl_destruct_level > 0)
157 /* Init the real globals (and main thread)? */
159 #ifdef PERL_FLEXIBLE_EXCEPTIONS
160 PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */
163 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
165 PL_linestr = NEWSV(65,79);
166 sv_upgrade(PL_linestr,SVt_PVIV);
168 if (!SvREADONLY(&PL_sv_undef)) {
169 /* set read-only and try to insure than we wont see REFCNT==0
172 SvREADONLY_on(&PL_sv_undef);
173 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
175 sv_setpv(&PL_sv_no,PL_No);
177 SvREADONLY_on(&PL_sv_no);
178 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
180 sv_setpv(&PL_sv_yes,PL_Yes);
182 SvREADONLY_on(&PL_sv_yes);
183 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
185 SvREADONLY_on(&PL_sv_placeholder);
186 SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2;
189 PL_sighandlerp = Perl_sighandler;
190 PL_pidstatus = newHV();
193 PL_rs = newSVpvn("\n", 1);
198 PL_lex_state = LEX_NOTPARSING;
204 SET_NUMERIC_STANDARD();
208 PL_patchlevel = NEWSV(0,4);
209 (void)SvUPGRADE(PL_patchlevel, SVt_PVNV);
210 if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
211 SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1);
212 s = (U8*)SvPVX(PL_patchlevel);
213 /* Build version strings using "native" characters */
214 s = uvchr_to_utf8(s, (UV)PERL_REVISION);
215 s = uvchr_to_utf8(s, (UV)PERL_VERSION);
216 s = uvchr_to_utf8(s, (UV)PERL_SUBVERSION);
218 SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
219 SvPOK_on(PL_patchlevel);
220 SvNVX(PL_patchlevel) = (NV)PERL_REVISION +
221 ((NV)PERL_VERSION / (NV)1000) +
222 ((NV)PERL_SUBVERSION / (NV)1000000);
223 SvNOK_on(PL_patchlevel); /* dual valued */
224 SvUTF8_on(PL_patchlevel);
225 SvREADONLY_on(PL_patchlevel);
228 #if defined(LOCAL_PATCH_COUNT)
229 PL_localpatches = local_patches; /* For possible -v */
232 #ifdef HAVE_INTERP_INTERN
236 PerlIO_init(aTHX); /* Hook to IO system */
238 PL_fdpid = newAV(); /* for remembering popen pids by fd */
239 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
240 PL_errors = newSVpvn("",0);
241 sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
242 sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
243 sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
245 PL_regex_padav = newAV();
246 av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */
247 PL_regex_pad = AvARRAY(PL_regex_padav);
249 #ifdef USE_REENTRANT_API
250 Perl_reentrant_init(aTHX);
253 /* Note that strtab is a rather special HV. Assumptions are made
254 about not iterating on it, and not adding tie magic to it.
255 It is properly deallocated in perl_destruct() */
258 HvSHAREKEYS_off(PL_strtab); /* mandatory */
259 hv_ksplit(PL_strtab, 512);
261 #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
262 _dyld_lookup_and_bind
263 ("__environ", (unsigned long *) &environ_pointer, NULL);
266 #ifdef USE_ENVIRON_ARRAY
267 PL_origenviron = environ;
270 /* Use sysconf(_SC_CLK_TCK) if available, if not
271 * available or if the sysconf() fails, use the HZ. */
272 #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
273 PL_clocktick = sysconf(_SC_CLK_TCK);
274 if (PL_clocktick <= 0)
278 PL_stashcache = newHV();
284 =for apidoc nothreadhook
286 Stub that provides thread hook for perl_destruct when there are
293 Perl_nothreadhook(pTHX)
299 =for apidoc perl_destruct
301 Shuts down a Perl interpreter. See L<perlembed>.
309 volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */
311 #ifdef USE_5005THREADS
313 #endif /* USE_5005THREADS */
315 /* wait for all pseudo-forked children to finish */
316 PERL_WAIT_FOR_CHILDREN;
318 destruct_level = PL_perl_destruct_level;
322 if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) {
324 if (destruct_level < i)
331 if(PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
336 if (PL_endav && !PL_minus_c)
337 call_list(PL_scopestack_ix, PL_endav);
343 /* Need to flush since END blocks can produce output */
346 if (CALL_FPTR(PL_threadhook)(aTHX)) {
347 /* Threads hook has vetoed further cleanup */
348 return STATUS_NATIVE_EXPORT;
351 /* We must account for everything. */
353 /* Destroy the main CV and syntax tree */
355 op_free(PL_main_root);
356 PL_main_root = Nullop;
358 PL_curcop = &PL_compiling;
359 PL_main_start = Nullop;
360 SvREFCNT_dec(PL_main_cv);
364 /* Tell PerlIO we are about to tear things apart in case
365 we have layers which are using resources that should
369 PerlIO_destruct(aTHX);
371 if (PL_sv_objcount) {
373 * Try to destruct global references. We do this first so that the
374 * destructors and destructees still exist. Some sv's might remain.
375 * Non-referenced objects are on their own.
380 /* unhook hooks which will soon be, or use, destroyed data */
381 SvREFCNT_dec(PL_warnhook);
382 PL_warnhook = Nullsv;
383 SvREFCNT_dec(PL_diehook);
386 /* call exit list functions */
387 while (PL_exitlistlen-- > 0)
388 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
390 Safefree(PL_exitlist);
395 if (destruct_level == 0){
397 DEBUG_P(debprofdump());
399 #if defined(PERLIO_LAYERS)
400 /* No more IO - including error messages ! */
401 PerlIO_cleanup(aTHX);
404 /* The exit() function will do everything that needs doing. */
405 return STATUS_NATIVE_EXPORT;
408 /* jettison our possibly duplicated environment */
409 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
410 * so we certainly shouldn't free it here
412 #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
413 if (environ != PL_origenviron
415 /* only main thread can free environ[0] contents */
416 && PL_curinterp == aTHX
422 for (i = 0; environ[i]; i++)
423 safesysfree(environ[i]);
425 /* Must use safesysfree() when working with environ. */
426 safesysfree(environ);
428 environ = PL_origenviron;
433 /* the syntax tree is shared between clones
434 * so op_free(PL_main_root) only ReREFCNT_dec's
435 * REGEXPs in the parent interpreter
436 * we need to manually ReREFCNT_dec for the clones
439 I32 i = AvFILLp(PL_regex_padav) + 1;
440 SV **ary = AvARRAY(PL_regex_padav);
444 REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv));
446 if (SvFLAGS(resv) & SVf_BREAK) {
447 /* this is PL_reg_curpm, already freed
448 * flag is set in regexec.c:S_regtry
450 SvFLAGS(resv) &= ~SVf_BREAK;
452 else if(SvREPADTMP(resv)) {
453 SvREPADTMP_off(resv);
460 SvREFCNT_dec(PL_regex_padav);
461 PL_regex_padav = Nullav;
465 SvREFCNT_dec((SV*) PL_stashcache);
466 PL_stashcache = NULL;
468 /* loosen bonds of global variables */
471 (void)PerlIO_close(PL_rsfp);
475 /* Filters for program text */
476 SvREFCNT_dec(PL_rsfp_filters);
477 PL_rsfp_filters = Nullav;
480 PL_preprocess = FALSE;
486 PL_doswitches = FALSE;
487 PL_dowarn = G_WARN_OFF;
488 PL_doextract = FALSE;
489 PL_sawampersand = FALSE; /* must save all match strings */
492 Safefree(PL_inplace);
494 SvREFCNT_dec(PL_patchlevel);
497 SvREFCNT_dec(PL_e_script);
498 PL_e_script = Nullsv;
501 /* magical thingies */
503 SvREFCNT_dec(PL_ofs_sv); /* $, */
506 SvREFCNT_dec(PL_ors_sv); /* $\ */
509 SvREFCNT_dec(PL_rs); /* $/ */
512 PL_multiline = 0; /* $* */
513 Safefree(PL_osname); /* $^O */
516 SvREFCNT_dec(PL_statname);
517 PL_statname = Nullsv;
520 /* defgv, aka *_ should be taken care of elsewhere */
522 /* clean up after study() */
523 SvREFCNT_dec(PL_lastscream);
524 PL_lastscream = Nullsv;
525 Safefree(PL_screamfirst);
527 Safefree(PL_screamnext);
531 Safefree(PL_efloatbuf);
532 PL_efloatbuf = Nullch;
535 /* startup and shutdown function lists */
536 SvREFCNT_dec(PL_beginav);
537 SvREFCNT_dec(PL_beginav_save);
538 SvREFCNT_dec(PL_endav);
539 SvREFCNT_dec(PL_checkav);
540 SvREFCNT_dec(PL_checkav_save);
541 SvREFCNT_dec(PL_initav);
543 PL_beginav_save = Nullav;
546 PL_checkav_save = Nullav;
549 /* shortcuts just get cleared */
555 PL_argvoutgv = Nullgv;
557 PL_stderrgv = Nullgv;
558 PL_last_in_gv = Nullgv;
560 PL_debstash = Nullhv;
562 /* reset so print() ends up where we expect */
565 SvREFCNT_dec(PL_argvout_stack);
566 PL_argvout_stack = Nullav;
568 SvREFCNT_dec(PL_modglobal);
569 PL_modglobal = Nullhv;
570 SvREFCNT_dec(PL_preambleav);
571 PL_preambleav = Nullav;
572 SvREFCNT_dec(PL_subname);
574 SvREFCNT_dec(PL_linestr);
576 SvREFCNT_dec(PL_pidstatus);
577 PL_pidstatus = Nullhv;
578 SvREFCNT_dec(PL_toptarget);
579 PL_toptarget = Nullsv;
580 SvREFCNT_dec(PL_bodytarget);
581 PL_bodytarget = Nullsv;
582 PL_formtarget = Nullsv;
584 /* free locale stuff */
585 #ifdef USE_LOCALE_COLLATE
586 Safefree(PL_collation_name);
587 PL_collation_name = Nullch;
590 #ifdef USE_LOCALE_NUMERIC
591 Safefree(PL_numeric_name);
592 PL_numeric_name = Nullch;
593 SvREFCNT_dec(PL_numeric_radix_sv);
596 /* clear utf8 character classes */
597 SvREFCNT_dec(PL_utf8_alnum);
598 SvREFCNT_dec(PL_utf8_alnumc);
599 SvREFCNT_dec(PL_utf8_ascii);
600 SvREFCNT_dec(PL_utf8_alpha);
601 SvREFCNT_dec(PL_utf8_space);
602 SvREFCNT_dec(PL_utf8_cntrl);
603 SvREFCNT_dec(PL_utf8_graph);
604 SvREFCNT_dec(PL_utf8_digit);
605 SvREFCNT_dec(PL_utf8_upper);
606 SvREFCNT_dec(PL_utf8_lower);
607 SvREFCNT_dec(PL_utf8_print);
608 SvREFCNT_dec(PL_utf8_punct);
609 SvREFCNT_dec(PL_utf8_xdigit);
610 SvREFCNT_dec(PL_utf8_mark);
611 SvREFCNT_dec(PL_utf8_toupper);
612 SvREFCNT_dec(PL_utf8_totitle);
613 SvREFCNT_dec(PL_utf8_tolower);
614 SvREFCNT_dec(PL_utf8_tofold);
615 SvREFCNT_dec(PL_utf8_idstart);
616 SvREFCNT_dec(PL_utf8_idcont);
617 PL_utf8_alnum = Nullsv;
618 PL_utf8_alnumc = Nullsv;
619 PL_utf8_ascii = Nullsv;
620 PL_utf8_alpha = Nullsv;
621 PL_utf8_space = Nullsv;
622 PL_utf8_cntrl = Nullsv;
623 PL_utf8_graph = Nullsv;
624 PL_utf8_digit = Nullsv;
625 PL_utf8_upper = Nullsv;
626 PL_utf8_lower = Nullsv;
627 PL_utf8_print = Nullsv;
628 PL_utf8_punct = Nullsv;
629 PL_utf8_xdigit = Nullsv;
630 PL_utf8_mark = Nullsv;
631 PL_utf8_toupper = Nullsv;
632 PL_utf8_totitle = Nullsv;
633 PL_utf8_tolower = Nullsv;
634 PL_utf8_tofold = Nullsv;
635 PL_utf8_idstart = Nullsv;
636 PL_utf8_idcont = Nullsv;
638 if (!specialWARN(PL_compiling.cop_warnings))
639 SvREFCNT_dec(PL_compiling.cop_warnings);
640 PL_compiling.cop_warnings = Nullsv;
641 if (!specialCopIO(PL_compiling.cop_io))
642 SvREFCNT_dec(PL_compiling.cop_io);
643 PL_compiling.cop_io = Nullsv;
644 CopFILE_free(&PL_compiling);
645 CopSTASH_free(&PL_compiling);
647 /* Prepare to destruct main symbol table. */
652 SvREFCNT_dec(PL_curstname);
653 PL_curstname = Nullsv;
655 /* clear queued errors */
656 SvREFCNT_dec(PL_errors);
660 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
661 if (PL_scopestack_ix != 0)
662 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
663 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
664 (long)PL_scopestack_ix);
665 if (PL_savestack_ix != 0)
666 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
667 "Unbalanced saves: %ld more saves than restores\n",
668 (long)PL_savestack_ix);
669 if (PL_tmps_floor != -1)
670 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
671 (long)PL_tmps_floor + 1);
672 if (cxstack_ix != -1)
673 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
674 (long)cxstack_ix + 1);
677 /* Now absolutely destruct everything, somehow or other, loops or no. */
678 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
679 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
681 /* the 2 is for PL_fdpid and PL_strtab */
682 while (PL_sv_count > 2 && sv_clean_all())
685 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
686 SvFLAGS(PL_fdpid) |= SVt_PVAV;
687 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
688 SvFLAGS(PL_strtab) |= SVt_PVHV;
690 AvREAL_off(PL_fdpid); /* no surviving entries */
691 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
694 #ifdef HAVE_INTERP_INTERN
698 /* Destruct the global string table. */
700 /* Yell and reset the HeVAL() slots that are still holding refcounts,
701 * so that sv_free() won't fail on them.
709 max = HvMAX(PL_strtab);
710 array = HvARRAY(PL_strtab);
713 if (hent && ckWARN_d(WARN_INTERNAL)) {
714 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
715 "Unbalanced string table refcount: (%d) for \"%s\"",
716 HeVAL(hent) - Nullsv, HeKEY(hent));
717 HeVAL(hent) = Nullsv;
727 SvREFCNT_dec(PL_strtab);
730 /* free the pointer table used for cloning */
731 ptr_table_free(PL_ptr_table);
734 /* free special SVs */
736 SvREFCNT(&PL_sv_yes) = 0;
737 sv_clear(&PL_sv_yes);
738 SvANY(&PL_sv_yes) = NULL;
739 SvFLAGS(&PL_sv_yes) = 0;
741 SvREFCNT(&PL_sv_no) = 0;
743 SvANY(&PL_sv_no) = NULL;
744 SvFLAGS(&PL_sv_no) = 0;
748 for (i=0; i<=2; i++) {
749 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
750 sv_clear(PERL_DEBUG_PAD(i));
751 SvANY(PERL_DEBUG_PAD(i)) = NULL;
752 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
756 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
757 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
759 #ifdef DEBUG_LEAKING_SCALARS
760 if (PL_sv_count != 0) {
765 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
766 svend = &sva[SvREFCNT(sva)];
767 for (sv = sva + 1; sv < svend; ++sv) {
768 if (SvTYPE(sv) != SVTYPEMASK) {
769 PerlIO_printf(Perl_debug_log, "leaked: 0x%p\n", sv);
777 #if defined(PERLIO_LAYERS)
778 /* No more IO - including error messages ! */
779 PerlIO_cleanup(aTHX);
782 /* sv_undef needs to stay immortal until after PerlIO_cleanup
783 as currently layers use it rather than Nullsv as a marker
784 for no arg - and will try and SvREFCNT_dec it.
786 SvREFCNT(&PL_sv_undef) = 0;
787 SvREADONLY_off(&PL_sv_undef);
789 SvREFCNT(&PL_sv_placeholder) = 0;
790 SvREADONLY_off(&PL_sv_placeholder);
792 Safefree(PL_origfilename);
793 Safefree(PL_reg_start_tmp);
795 Safefree(PL_reg_curpm);
796 Safefree(PL_reg_poscache);
798 Safefree(PL_op_mask);
799 Safefree(PL_psig_ptr);
800 Safefree(PL_psig_name);
801 Safefree(PL_bitcount);
802 Safefree(PL_psig_pend);
804 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
806 DEBUG_P(debprofdump());
808 #ifdef USE_REENTRANT_API
809 Perl_reentrant_free(aTHX);
814 /* As the absolutely last thing, free the non-arena SV for mess() */
817 /* it could have accumulated taint magic */
818 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
821 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
822 moremagic = mg->mg_moremagic;
823 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
825 Safefree(mg->mg_ptr);
829 /* we know that type >= SVt_PV */
830 (void)SvOOK_off(PL_mess_sv);
831 Safefree(SvPVX(PL_mess_sv));
832 Safefree(SvANY(PL_mess_sv));
833 Safefree(PL_mess_sv);
836 return STATUS_NATIVE_EXPORT;
840 =for apidoc perl_free
842 Releases a Perl interpreter. See L<perlembed>.
850 #if defined(WIN32) || defined(NETWARE)
851 # if defined(PERL_IMPLICIT_SYS)
853 void *host = nw_internal_host;
855 void *host = w32_internal_host;
859 nw_delete_internal_host(host);
861 win32_delete_internal_host(host);
872 Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
874 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
875 PL_exitlist[PL_exitlistlen].fn = fn;
876 PL_exitlist[PL_exitlistlen].ptr = ptr;
881 =for apidoc perl_parse
883 Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
889 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
894 #ifdef USE_5005THREADS
898 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
901 Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
902 setuid perl scripts securely.\n");
906 #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
907 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
908 * This MUST be done before any hash stores or fetches take place.
909 * If you set PL_hash_seed (and assumedly also PL_hash_seed_set) yourself,
910 * it is your responsibility to provide a good random seed!
911 * You can also define PERL_HASH_SEED in compile time, see hv.h. */
912 if (!PL_hash_seed_set)
913 PL_hash_seed = get_hash_seed();
915 char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
921 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
925 #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
931 /* Set PL_origalen be the sum of the contiguous argv[]
932 * elements plus the size of the env in case that it is
933 * contiguous with the argv[]. This is used in mg.c:mg_set()
934 * as the maximum modifiable length of $0. In the worst case
935 * the area we are able to modify is limited to the size of
936 * the original argv[0]. (See below for 'contiguous', though.)
941 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
942 /* Do the mask check only if the args seem like aligned. */
944 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
946 /* See if all the arguments are contiguous in memory. Note
947 * that 'contiguous' is a loose term because some platforms
948 * align the argv[] and the envp[]. If the arguments look
949 * like non-aligned, assume that they are 'strictly' or
950 * 'traditionally' contiguous. If the arguments look like
951 * aligned, we just check that they are within aligned
952 * PTRSIZE bytes. As long as no system has something bizarre
953 * like the argv[] interleaved with some other data, we are
954 * fine. (Did I just evoke Murphy's Law?) --jhi */
957 for (i = 1; i < PL_origargc; i++) {
958 if ((PL_origargv[i] == s + 1
960 || PL_origargv[i] == s + 2
965 (PL_origargv[i] > s &&
967 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
976 /* Can we grab env area too to be used as the area for $0? */
977 if (PL_origenviron) {
978 if ((PL_origenviron[0] == s + 1
980 || (PL_origenviron[0] == s + 9 && (s += 8))
985 (PL_origenviron[0] > s &&
987 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
991 s = PL_origenviron[0];
994 my_setenv("NoNe SuCh", Nullch);
995 /* Force copy of environment. */
996 for (i = 1; PL_origenviron[i]; i++) {
997 if (PL_origenviron[i] == s + 1
1000 (PL_origenviron[i] > s &&
1001 PL_origenviron[i] <=
1002 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1005 s = PL_origenviron[i];
1013 PL_origalen = s - PL_origargv[0];
1018 /* Come here if running an undumped a.out. */
1020 PL_origfilename = savepv(argv[0]);
1021 PL_do_undump = FALSE;
1022 cxstack_ix = -1; /* start label stack again */
1024 init_postdump_symbols(argc,argv,env);
1029 op_free(PL_main_root);
1030 PL_main_root = Nullop;
1032 PL_main_start = Nullop;
1033 SvREFCNT_dec(PL_main_cv);
1034 PL_main_cv = Nullcv;
1037 oldscope = PL_scopestack_ix;
1038 PL_dowarn = G_WARN_OFF;
1040 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1041 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1047 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1048 parse_body(env,xsinit);
1051 call_list(oldscope, PL_checkav);
1058 /* my_exit() was called */
1059 while (PL_scopestack_ix > oldscope)
1062 PL_curstash = PL_defstash;
1064 call_list(oldscope, PL_checkav);
1065 ret = STATUS_NATIVE_EXPORT;
1068 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1076 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1078 S_vparse_body(pTHX_ va_list args)
1080 char **env = va_arg(args, char**);
1081 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1083 return parse_body(env, xsinit);
1088 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1090 int argc = PL_origargc;
1091 char **argv = PL_origargv;
1092 char *scriptname = NULL;
1094 VOL bool dosearch = FALSE;
1095 char *validarg = "";
1098 char *cddir = Nullch;
1100 sv_setpvn(PL_linestr,"",0);
1101 sv = newSVpvn("",0); /* first used for -I flags */
1105 for (argc--,argv++; argc > 0; argc--,argv++) {
1106 if (argv[0][0] != '-' || !argv[0][1])
1110 validarg = " PHOOEY ";
1118 #ifndef PERL_STRICT_CR
1143 if ((s = moreswitches(s)))
1148 CHECK_MALLOC_TOO_LATE_FOR('t');
1149 if( !PL_tainting ) {
1150 PL_taint_warn = TRUE;
1156 CHECK_MALLOC_TOO_LATE_FOR('T');
1158 PL_taint_warn = FALSE;
1163 #ifdef MACOS_TRADITIONAL
1164 /* ignore -e for Dev:Pseudo argument */
1165 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1168 if (PL_euid != PL_uid || PL_egid != PL_gid)
1169 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1171 PL_e_script = newSVpvn("",0);
1172 filter_add(read_e_script, NULL);
1175 sv_catpv(PL_e_script, s);
1177 sv_catpv(PL_e_script, argv[1]);
1181 Perl_croak(aTHX_ "No code specified for -e");
1182 sv_catpv(PL_e_script, "\n");
1185 case 'I': /* -I handled both here and in moreswitches() */
1187 if (!*++s && (s=argv[1]) != Nullch) {
1192 STRLEN len = strlen(s);
1193 p = savepvn(s, len);
1194 incpush(p, TRUE, TRUE, FALSE);
1195 sv_catpvn(sv, "-I", 2);
1196 sv_catpvn(sv, p, len);
1197 sv_catpvn(sv, " ", 1);
1201 Perl_croak(aTHX_ "No directory specified for -I");
1205 PL_preprocess = TRUE;
1215 PL_preambleav = newAV();
1216 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1218 PL_Sv = newSVpv("print myconfig();",0);
1220 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1222 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1224 sv_catpv(PL_Sv,"\" Compile-time options:");
1226 sv_catpv(PL_Sv," DEBUGGING");
1228 # ifdef MULTIPLICITY
1229 sv_catpv(PL_Sv," MULTIPLICITY");
1231 # ifdef USE_5005THREADS
1232 sv_catpv(PL_Sv," USE_5005THREADS");
1234 # ifdef USE_ITHREADS
1235 sv_catpv(PL_Sv," USE_ITHREADS");
1237 # ifdef USE_64_BIT_INT
1238 sv_catpv(PL_Sv," USE_64_BIT_INT");
1240 # ifdef USE_64_BIT_ALL
1241 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1243 # ifdef USE_LONG_DOUBLE
1244 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1246 # ifdef USE_LARGE_FILES
1247 sv_catpv(PL_Sv," USE_LARGE_FILES");
1250 sv_catpv(PL_Sv," USE_SOCKS");
1252 # ifdef PERL_IMPLICIT_CONTEXT
1253 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1255 # ifdef PERL_IMPLICIT_SYS
1256 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1258 sv_catpv(PL_Sv,"\\n\",");
1260 #if defined(LOCAL_PATCH_COUNT)
1261 if (LOCAL_PATCH_COUNT > 0) {
1263 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1264 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1265 if (PL_localpatches[i])
1266 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1270 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1273 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1275 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1278 sv_catpv(PL_Sv, "; \
1280 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1283 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1286 print \" \\%ENV:\\n @env\\n\" if @env; \
1287 print \" \\@INC:\\n @INC\\n\";");
1290 PL_Sv = newSVpv("config_vars(qw(",0);
1291 sv_catpv(PL_Sv, ++s);
1292 sv_catpv(PL_Sv, "))");
1295 av_push(PL_preambleav, PL_Sv);
1296 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1299 PL_doextract = TRUE;
1307 if (!*++s || isSPACE(*s)) {
1311 /* catch use of gnu style long options */
1312 if (strEQ(s, "version")) {
1316 if (strEQ(s, "help")) {
1323 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1327 sv_setsv(get_sv("/", TRUE), PL_rs);
1330 #ifndef SECURE_INTERNAL_GETENV
1333 (s = PerlEnv_getenv("PERL5OPT")))
1338 if (*s == '-' && *(s+1) == 'T') {
1339 CHECK_MALLOC_TOO_LATE_FOR('T');
1341 PL_taint_warn = FALSE;
1344 char *popt_copy = Nullch;
1357 if (!strchr("DIMUdmtwA", *s))
1358 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1362 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1363 s = popt_copy + (s - popt);
1364 d = popt_copy + (d - popt);
1371 if( !PL_tainting ) {
1372 PL_taint_warn = TRUE;
1382 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1383 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1387 scriptname = argv[0];
1390 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1392 else if (scriptname == Nullch) {
1394 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1402 open_script(scriptname,dosearch,sv,&fdscript);
1404 validate_suid(validarg, scriptname,fdscript);
1407 #if defined(SIGCHLD) || defined(SIGCLD)
1410 # define SIGCHLD SIGCLD
1412 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1413 if (sigstate == SIG_IGN) {
1414 if (ckWARN(WARN_SIGNAL))
1415 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1416 "Can't ignore signal CHLD, forcing to default");
1417 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1423 #ifdef MACOS_TRADITIONAL
1424 if (PL_doextract || gMacPerl_AlwaysExtract) {
1429 if (cddir && PerlDir_chdir(cddir) < 0)
1430 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1434 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1435 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1436 CvUNIQUE_on(PL_compcv);
1438 CvPADLIST(PL_compcv) = pad_new(0);
1439 #ifdef USE_5005THREADS
1440 CvOWNER(PL_compcv) = 0;
1441 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1442 MUTEX_INIT(CvMUTEXP(PL_compcv));
1443 #endif /* USE_5005THREADS */
1446 boot_core_UNIVERSAL();
1448 boot_core_xsutils();
1452 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1454 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1460 # ifdef HAS_SOCKS5_INIT
1461 socks5_init(argv[0]);
1467 init_predump_symbols();
1468 /* init_postdump_symbols not currently designed to be called */
1469 /* more than once (ENV isn't cleared first, for example) */
1470 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1472 init_postdump_symbols(argc,argv,env);
1474 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1475 * PL_utf8locale is conditionally turned on by
1476 * locale.c:Perl_init_i18nl10n() if the environment
1477 * look like the user wants to use UTF-8. */
1479 /* Requires init_predump_symbols(). */
1480 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1485 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1486 * and the default open disciplines. */
1487 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1488 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1490 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1491 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1492 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1494 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1495 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1496 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1498 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1499 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1500 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1501 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1502 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1505 sv_setpvn(sv, ":utf8\0:utf8", 11);
1507 sv_setpvn(sv, ":utf8\0", 6);
1510 sv_setpvn(sv, "\0:utf8", 6);
1516 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1517 if (strEQ(s, "unsafe"))
1518 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1519 else if (strEQ(s, "safe"))
1520 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1522 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1527 /* now parse the script */
1529 SETERRNO(0,SS_NORMAL);
1531 #ifdef MACOS_TRADITIONAL
1532 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1534 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1536 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1537 MacPerl_MPWFileName(PL_origfilename));
1541 if (yyparse() || PL_error_count) {
1543 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1545 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1550 CopLINE_set(PL_curcop, 0);
1551 PL_curstash = PL_defstash;
1552 PL_preprocess = FALSE;
1554 SvREFCNT_dec(PL_e_script);
1555 PL_e_script = Nullsv;
1562 SAVECOPFILE(PL_curcop);
1563 SAVECOPLINE(PL_curcop);
1564 gv_check(PL_defstash);
1571 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1572 dump_mstats("after compilation:");
1581 =for apidoc perl_run
1583 Tells a Perl interpreter to run. See L<perlembed>.
1594 #ifdef USE_5005THREADS
1598 oldscope = PL_scopestack_ix;
1603 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1605 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1611 cxstack_ix = -1; /* start context stack again */
1613 case 0: /* normal completion */
1614 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1619 case 2: /* my_exit() */
1620 while (PL_scopestack_ix > oldscope)
1623 PL_curstash = PL_defstash;
1624 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1625 PL_endav && !PL_minus_c)
1626 call_list(oldscope, PL_endav);
1628 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1629 dump_mstats("after execution: ");
1631 ret = STATUS_NATIVE_EXPORT;
1635 POPSTACK_TO(PL_mainstack);
1638 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1648 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1650 S_vrun_body(pTHX_ va_list args)
1652 I32 oldscope = va_arg(args, I32);
1654 return run_body(oldscope);
1660 S_run_body(pTHX_ I32 oldscope)
1662 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1663 PL_sawampersand ? "Enabling" : "Omitting"));
1665 if (!PL_restartop) {
1666 DEBUG_x(dump_all());
1667 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1668 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1672 #ifdef MACOS_TRADITIONAL
1673 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1674 (gMacPerl_ErrorFormat ? "# " : ""),
1675 MacPerl_MPWFileName(PL_origfilename));
1677 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1681 if (PERLDB_SINGLE && PL_DBsingle)
1682 sv_setiv(PL_DBsingle, 1);
1684 call_list(oldscope, PL_initav);
1690 PL_op = PL_restartop;
1694 else if (PL_main_start) {
1695 CvDEPTH(PL_main_cv) = 1;
1696 PL_op = PL_main_start;
1706 =head1 SV Manipulation Functions
1708 =for apidoc p||get_sv
1710 Returns the SV of the specified Perl scalar. If C<create> is set and the
1711 Perl variable does not exist then it will be created. If C<create> is not
1712 set and the variable does not exist then NULL is returned.
1718 Perl_get_sv(pTHX_ const char *name, I32 create)
1721 #ifdef USE_5005THREADS
1722 if (name[1] == '\0' && !isALPHA(name[0])) {
1723 PADOFFSET tmp = find_threadsv(name);
1724 if (tmp != NOT_IN_PAD)
1725 return THREADSV(tmp);
1727 #endif /* USE_5005THREADS */
1728 gv = gv_fetchpv(name, create, SVt_PV);
1735 =head1 Array Manipulation Functions
1737 =for apidoc p||get_av
1739 Returns the AV of the specified Perl array. If C<create> is set and the
1740 Perl variable does not exist then it will be created. If C<create> is not
1741 set and the variable does not exist then NULL is returned.
1747 Perl_get_av(pTHX_ const char *name, I32 create)
1749 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1758 =head1 Hash Manipulation Functions
1760 =for apidoc p||get_hv
1762 Returns the HV of the specified Perl hash. If C<create> is set and the
1763 Perl variable does not exist then it will be created. If C<create> is not
1764 set and the variable does not exist then NULL is returned.
1770 Perl_get_hv(pTHX_ const char *name, I32 create)
1772 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1781 =head1 CV Manipulation Functions
1783 =for apidoc p||get_cv
1785 Returns the CV of the specified Perl subroutine. If C<create> is set and
1786 the Perl subroutine does not exist then it will be declared (which has the
1787 same effect as saying C<sub name;>). If C<create> is not set and the
1788 subroutine does not exist then NULL is returned.
1794 Perl_get_cv(pTHX_ const char *name, I32 create)
1796 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1797 /* XXX unsafe for threads if eval_owner isn't held */
1798 /* XXX this is probably not what they think they're getting.
1799 * It has the same effect as "sub name;", i.e. just a forward
1801 if (create && !GvCVu(gv))
1802 return newSUB(start_subparse(FALSE, 0),
1803 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1811 /* Be sure to refetch the stack pointer after calling these routines. */
1815 =head1 Callback Functions
1817 =for apidoc p||call_argv
1819 Performs a callback to the specified Perl sub. See L<perlcall>.
1825 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1827 /* See G_* flags in cop.h */
1828 /* null terminated arg list */
1835 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1840 return call_pv(sub_name, flags);
1844 =for apidoc p||call_pv
1846 Performs a callback to the specified Perl sub. See L<perlcall>.
1852 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1853 /* name of the subroutine */
1854 /* See G_* flags in cop.h */
1856 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1860 =for apidoc p||call_method
1862 Performs a callback to the specified Perl method. The blessed object must
1863 be on the stack. See L<perlcall>.
1869 Perl_call_method(pTHX_ const char *methname, I32 flags)
1870 /* name of the subroutine */
1871 /* See G_* flags in cop.h */
1873 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1876 /* May be called with any of a CV, a GV, or an SV containing the name. */
1878 =for apidoc p||call_sv
1880 Performs a callback to the Perl sub whose name is in the SV. See
1887 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1888 /* See G_* flags in cop.h */
1891 LOGOP myop; /* fake syntax tree node */
1894 volatile I32 retval = 0;
1896 bool oldcatch = CATCH_GET;
1901 if (flags & G_DISCARD) {
1906 Zero(&myop, 1, LOGOP);
1907 myop.op_next = Nullop;
1908 if (!(flags & G_NOARGS))
1909 myop.op_flags |= OPf_STACKED;
1910 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1911 (flags & G_ARRAY) ? OPf_WANT_LIST :
1916 EXTEND(PL_stack_sp, 1);
1917 *++PL_stack_sp = sv;
1919 oldscope = PL_scopestack_ix;
1921 if (PERLDB_SUB && PL_curstash != PL_debstash
1922 /* Handle first BEGIN of -d. */
1923 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1924 /* Try harder, since this may have been a sighandler, thus
1925 * curstash may be meaningless. */
1926 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1927 && !(flags & G_NODEBUG))
1928 PL_op->op_private |= OPpENTERSUB_DB;
1930 if (flags & G_METHOD) {
1931 Zero(&method_op, 1, UNOP);
1932 method_op.op_next = PL_op;
1933 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1934 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1935 PL_op = (OP*)&method_op;
1938 if (!(flags & G_EVAL)) {
1940 call_body((OP*)&myop, FALSE);
1941 retval = PL_stack_sp - (PL_stack_base + oldmark);
1942 CATCH_SET(oldcatch);
1945 myop.op_other = (OP*)&myop;
1947 /* we're trying to emulate pp_entertry() here */
1949 register PERL_CONTEXT *cx;
1950 I32 gimme = GIMME_V;
1955 push_return(Nullop);
1956 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1958 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1960 PL_in_eval = EVAL_INEVAL;
1961 if (flags & G_KEEPERR)
1962 PL_in_eval |= EVAL_KEEPERR;
1968 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1970 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1977 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1979 call_body((OP*)&myop, FALSE);
1981 retval = PL_stack_sp - (PL_stack_base + oldmark);
1982 if (!(flags & G_KEEPERR))
1989 /* my_exit() was called */
1990 PL_curstash = PL_defstash;
1993 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1994 Perl_croak(aTHX_ "Callback called exit");
1999 PL_op = PL_restartop;
2003 PL_stack_sp = PL_stack_base + oldmark;
2004 if (flags & G_ARRAY)
2008 *++PL_stack_sp = &PL_sv_undef;
2013 if (PL_scopestack_ix > oldscope) {
2017 register PERL_CONTEXT *cx;
2029 if (flags & G_DISCARD) {
2030 PL_stack_sp = PL_stack_base + oldmark;
2039 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2041 S_vcall_body(pTHX_ va_list args)
2043 OP *myop = va_arg(args, OP*);
2044 int is_eval = va_arg(args, int);
2046 call_body(myop, is_eval);
2052 S_call_body(pTHX_ OP *myop, int is_eval)
2054 if (PL_op == myop) {
2056 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2058 PL_op = Perl_pp_entersub(aTHX); /* this does */
2064 /* Eval a string. The G_EVAL flag is always assumed. */
2067 =for apidoc p||eval_sv
2069 Tells Perl to C<eval> the string in the SV.
2075 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2077 /* See G_* flags in cop.h */
2080 UNOP myop; /* fake syntax tree node */
2081 volatile I32 oldmark = SP - PL_stack_base;
2082 volatile I32 retval = 0;
2088 if (flags & G_DISCARD) {
2095 Zero(PL_op, 1, UNOP);
2096 EXTEND(PL_stack_sp, 1);
2097 *++PL_stack_sp = sv;
2098 oldscope = PL_scopestack_ix;
2100 if (!(flags & G_NOARGS))
2101 myop.op_flags = OPf_STACKED;
2102 myop.op_next = Nullop;
2103 myop.op_type = OP_ENTEREVAL;
2104 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2105 (flags & G_ARRAY) ? OPf_WANT_LIST :
2107 if (flags & G_KEEPERR)
2108 myop.op_flags |= OPf_SPECIAL;
2110 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2112 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2119 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2121 call_body((OP*)&myop,TRUE);
2123 retval = PL_stack_sp - (PL_stack_base + oldmark);
2124 if (!(flags & G_KEEPERR))
2131 /* my_exit() was called */
2132 PL_curstash = PL_defstash;
2135 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2136 Perl_croak(aTHX_ "Callback called exit");
2141 PL_op = PL_restartop;
2145 PL_stack_sp = PL_stack_base + oldmark;
2146 if (flags & G_ARRAY)
2150 *++PL_stack_sp = &PL_sv_undef;
2156 if (flags & G_DISCARD) {
2157 PL_stack_sp = PL_stack_base + oldmark;
2167 =for apidoc p||eval_pv
2169 Tells Perl to C<eval> the given string and return an SV* result.
2175 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2178 SV* sv = newSVpv(p, 0);
2180 eval_sv(sv, G_SCALAR);
2187 if (croak_on_error && SvTRUE(ERRSV)) {
2189 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2195 /* Require a module. */
2198 =head1 Embedding Functions
2200 =for apidoc p||require_pv
2202 Tells Perl to C<require> the file named by the string argument. It is
2203 analogous to the Perl code C<eval "require '$file'">. It's even
2204 implemented that way; consider using load_module instead.
2209 Perl_require_pv(pTHX_ const char *pv)
2213 PUSHSTACKi(PERLSI_REQUIRE);
2215 sv = sv_newmortal();
2216 sv_setpv(sv, "require '");
2219 eval_sv(sv, G_DISCARD);
2225 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2229 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2230 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2234 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2236 /* This message really ought to be max 23 lines.
2237 * Removed -h because the user already knows that option. Others? */
2239 static char *usage_msg[] = {
2240 "-0[octal] specify record separator (\\0, if no argument)",
2241 "-a autosplit mode with -n or -p (splits $_ into @F)",
2242 "-C enable native wide character system interfaces",
2243 "-c check syntax only (runs BEGIN and CHECK blocks)",
2244 "-d[:debugger] run program under debugger",
2245 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2246 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2247 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2248 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2249 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2250 "-l[octal] enable line ending processing, specifies line terminator",
2251 "-[mM][-]module execute `use/no module...' before executing program",
2252 "-n assume 'while (<>) { ... }' loop around program",
2253 "-p assume loop like -n but print line also, like sed",
2254 "-P run program through C preprocessor before compilation",
2255 "-s enable rudimentary parsing for switches after programfile",
2256 "-S look for programfile using PATH environment variable",
2257 "-T enable tainting checks",
2258 "-t enable tainting warnings",
2259 "-u dump core after parsing program",
2260 "-U allow unsafe operations",
2261 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2262 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2263 "-w enable many useful warnings (RECOMMENDED)",
2264 "-W enable all warnings",
2265 "-X disable all warnings",
2266 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2270 char **p = usage_msg;
2272 PerlIO_printf(PerlIO_stdout(),
2273 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2276 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2279 /* convert a string of -D options (or digits) into an int.
2280 * sets *s to point to the char after the options */
2284 Perl_get_debug_opts(pTHX_ char **s)
2288 /* if adding extra options, remember to update DEBUG_MASK */
2289 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2291 for (; isALNUM(**s); (*s)++) {
2292 char *d = strchr(debopts,**s);
2294 i |= 1 << (d - debopts);
2295 else if (ckWARN_d(WARN_DEBUGGING))
2296 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2297 "invalid option -D%c\n", **s);
2302 for (; isALNUM(**s); (*s)++) ;
2305 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2306 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2307 "-Dp not implemented on this platform\n");
2313 /* This routine handles any switches that can be given during run */
2316 Perl_moreswitches(pTHX_ char *s)
2326 SvREFCNT_dec(PL_rs);
2327 if (s[1] == 'x' && s[2]) {
2331 for (s += 2, e = s; *e; e++);
2333 flags = PERL_SCAN_SILENT_ILLDIGIT;
2334 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2335 if (s + numlen < e) {
2336 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2340 PL_rs = newSVpvn("", 0);
2341 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2342 tmps = (U8*)SvPVX(PL_rs);
2343 uvchr_to_utf8(tmps, rschar);
2344 SvCUR_set(PL_rs, UNISKIP(rschar));
2349 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2350 if (rschar & ~((U8)~0))
2351 PL_rs = &PL_sv_undef;
2352 else if (!rschar && numlen >= 2)
2353 PL_rs = newSVpvn("", 0);
2355 char ch = (char)rschar;
2356 PL_rs = newSVpvn(&ch, 1);
2363 PL_unicode = parse_unicode_opts(&s);
2368 while (*s && !isSPACE(*s)) ++s;
2370 PL_splitstr = savepv(PL_splitstr);
2383 /* The following permits -d:Mod to accepts arguments following an =
2384 in the fashion that -MSome::Mod does. */
2385 if (*s == ':' || *s == '=') {
2388 sv = newSVpv("use Devel::", 0);
2390 /* We now allow -d:Module=Foo,Bar */
2391 while(isALNUM(*s) || *s==':') ++s;
2393 sv_catpv(sv, start);
2395 sv_catpvn(sv, start, s-start);
2396 sv_catpv(sv, " split(/,/,q{");
2401 my_setenv("PERL5DB", SvPV(sv, PL_na));
2404 PL_perldb = PERLDB_ALL;
2413 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2414 #else /* !DEBUGGING */
2415 if (ckWARN_d(WARN_DEBUGGING))
2416 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2417 "Recompile perl with -DDEBUGGING to use -D switch\n");
2418 for (s++; isALNUM(*s); s++) ;
2424 usage(PL_origargv[0]);
2428 Safefree(PL_inplace);
2429 #if defined(__CYGWIN__) /* do backup extension automagically */
2430 if (*(s+1) == '\0') {
2431 PL_inplace = savepv(".bak");
2434 #endif /* __CYGWIN__ */
2435 PL_inplace = savepv(s+1);
2437 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2440 if (*s == '-') /* Additional switches on #! line. */
2444 case 'I': /* -I handled both here and in parse_body() */
2447 while (*s && isSPACE(*s))
2452 /* ignore trailing spaces (possibly followed by other switches) */
2454 for (e = p; *e && !isSPACE(*e); e++) ;
2458 } while (*p && *p != '-');
2459 e = savepvn(s, e-s);
2460 incpush(e, TRUE, TRUE, FALSE);
2467 Perl_croak(aTHX_ "No directory specified for -I");
2473 SvREFCNT_dec(PL_ors_sv);
2478 PL_ors_sv = newSVpvn("\n",1);
2479 numlen = 3 + (*s == '0');
2480 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2484 if (RsPARA(PL_rs)) {
2485 PL_ors_sv = newSVpvn("\n\n",2);
2488 PL_ors_sv = newSVsv(PL_rs);
2495 PL_preambleav = newAV();
2497 SV *sv = newSVpvn("use assertions::activate split(/,/,q{",37);
2501 av_push(PL_preambleav, sv);
2504 av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
2507 forbid_setid("-M"); /* XXX ? */
2510 forbid_setid("-m"); /* XXX ? */
2515 /* -M-foo == 'no foo' */
2516 if (*s == '-') { use = "no "; ++s; }
2517 sv = newSVpv(use,0);
2519 /* We allow -M'Module qw(Foo Bar)' */
2520 while(isALNUM(*s) || *s==':') ++s;
2522 sv_catpv(sv, start);
2523 if (*(start-1) == 'm') {
2525 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2526 sv_catpv( sv, " ()");
2530 Perl_croak(aTHX_ "Module name required with -%c option",
2532 sv_catpvn(sv, start, s-start);
2533 sv_catpv(sv, " split(/,/,q{");
2539 PL_preambleav = newAV();
2540 av_push(PL_preambleav, sv);
2543 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2555 PL_doswitches = TRUE;
2569 #ifdef MACOS_TRADITIONAL
2570 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2572 PL_do_undump = TRUE;
2581 PerlIO_printf(PerlIO_stdout(),
2582 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2583 PL_patchlevel, ARCHNAME));
2585 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2586 PerlIO_printf(PerlIO_stdout(),
2587 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2588 PerlIO_printf(PerlIO_stdout(),
2589 Perl_form(aTHX_ " built under %s at %s %s\n",
2590 OSNAME, __DATE__, __TIME__));
2591 PerlIO_printf(PerlIO_stdout(),
2592 Perl_form(aTHX_ " OS Specific Release: %s\n",
2596 #if defined(LOCAL_PATCH_COUNT)
2597 if (LOCAL_PATCH_COUNT > 0)
2598 PerlIO_printf(PerlIO_stdout(),
2599 "\n(with %d registered patch%s, "
2600 "see perl -V for more detail)",
2601 (int)LOCAL_PATCH_COUNT,
2602 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2605 PerlIO_printf(PerlIO_stdout(),
2606 "\n\nCopyright 1987-2003, Larry Wall\n");
2607 #ifdef MACOS_TRADITIONAL
2608 PerlIO_printf(PerlIO_stdout(),
2609 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2610 "maintained by Chris Nandor\n");
2613 PerlIO_printf(PerlIO_stdout(),
2614 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2617 PerlIO_printf(PerlIO_stdout(),
2618 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2619 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2622 PerlIO_printf(PerlIO_stdout(),
2623 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2624 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2627 PerlIO_printf(PerlIO_stdout(),
2628 "atariST series port, ++jrb bammi@cadence.com\n");
2631 PerlIO_printf(PerlIO_stdout(),
2632 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2635 PerlIO_printf(PerlIO_stdout(),
2636 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2639 PerlIO_printf(PerlIO_stdout(),
2640 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2643 PerlIO_printf(PerlIO_stdout(),
2644 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2647 PerlIO_printf(PerlIO_stdout(),
2648 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2651 PerlIO_printf(PerlIO_stdout(),
2652 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2655 PerlIO_printf(PerlIO_stdout(),
2656 "MiNT port by Guido Flohr, 1997-1999\n");
2659 PerlIO_printf(PerlIO_stdout(),
2660 "EPOC port by Olaf Flebbe, 1999-2002\n");
2663 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2664 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2667 #ifdef BINARY_BUILD_NOTICE
2668 BINARY_BUILD_NOTICE;
2670 PerlIO_printf(PerlIO_stdout(),
2672 Perl may be copied only under the terms of either the Artistic License or the\n\
2673 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2674 Complete documentation for Perl, including FAQ lists, should be found on\n\
2675 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2676 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2679 if (! (PL_dowarn & G_WARN_ALL_MASK))
2680 PL_dowarn |= G_WARN_ON;
2684 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2685 if (!specialWARN(PL_compiling.cop_warnings))
2686 SvREFCNT_dec(PL_compiling.cop_warnings);
2687 PL_compiling.cop_warnings = pWARN_ALL ;
2691 PL_dowarn = G_WARN_ALL_OFF;
2692 if (!specialWARN(PL_compiling.cop_warnings))
2693 SvREFCNT_dec(PL_compiling.cop_warnings);
2694 PL_compiling.cop_warnings = pWARN_NONE ;
2699 if (s[1] == '-') /* Additional switches on #! line. */
2704 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2710 #ifdef ALTERNATE_SHEBANG
2711 case 'S': /* OS/2 needs -S on "extproc" line. */
2719 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2724 /* compliments of Tom Christiansen */
2726 /* unexec() can be found in the Gnu emacs distribution */
2727 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2730 Perl_my_unexec(pTHX)
2738 prog = newSVpv(BIN_EXP, 0);
2739 sv_catpv(prog, "/perl");
2740 file = newSVpv(PL_origfilename, 0);
2741 sv_catpv(file, ".perldump");
2743 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2744 /* unexec prints msg to stderr in case of failure */
2745 PerlProc_exit(status);
2748 # include <lib$routines.h>
2749 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2751 ABORT(); /* for use with undump */
2756 /* initialize curinterp */
2762 # define PERLVAR(var,type)
2763 # define PERLVARA(var,n,type)
2764 # if defined(PERL_IMPLICIT_CONTEXT)
2765 # if defined(USE_5005THREADS)
2766 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2767 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2768 # else /* !USE_5005THREADS */
2769 # define PERLVARI(var,type,init) aTHX->var = init;
2770 # define PERLVARIC(var,type,init) aTHX->var = init;
2771 # endif /* USE_5005THREADS */
2773 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2774 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2776 # include "intrpvar.h"
2777 # ifndef USE_5005THREADS
2778 # include "thrdvar.h"
2785 # define PERLVAR(var,type)
2786 # define PERLVARA(var,n,type)
2787 # define PERLVARI(var,type,init) PL_##var = init;
2788 # define PERLVARIC(var,type,init) PL_##var = init;
2789 # include "intrpvar.h"
2790 # ifndef USE_5005THREADS
2791 # include "thrdvar.h"
2802 S_init_main_stash(pTHX)
2806 PL_curstash = PL_defstash = newHV();
2807 PL_curstname = newSVpvn("main",4);
2808 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2809 SvREFCNT_dec(GvHV(gv));
2810 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2812 HvNAME(PL_defstash) = savepv("main");
2813 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2814 GvMULTI_on(PL_incgv);
2815 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2816 GvMULTI_on(PL_hintgv);
2817 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2818 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2819 GvMULTI_on(PL_errgv);
2820 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2821 GvMULTI_on(PL_replgv);
2822 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2823 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2824 sv_setpvn(ERRSV, "", 0);
2825 PL_curstash = PL_defstash;
2826 CopSTASH_set(&PL_compiling, PL_defstash);
2827 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2828 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2829 /* We must init $/ before switches are processed. */
2830 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2834 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2838 char *cpp_discard_flag;
2844 PL_origfilename = savepv("-e");
2847 /* if find_script() returns, it returns a malloc()-ed value */
2848 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2850 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2851 char *s = scriptname + 8;
2852 *fdscript = atoi(s);
2856 scriptname = savepv(s + 1);
2857 Safefree(PL_origfilename);
2858 PL_origfilename = scriptname;
2863 CopFILE_free(PL_curcop);
2864 CopFILE_set(PL_curcop, PL_origfilename);
2865 if (strEQ(PL_origfilename,"-"))
2867 if (*fdscript >= 0) {
2868 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2869 # if defined(HAS_FCNTL) && defined(F_SETFD)
2871 /* ensure close-on-exec */
2872 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2875 else if (PL_preprocess) {
2876 char *cpp_cfg = CPPSTDIN;
2877 SV *cpp = newSVpvn("",0);
2878 SV *cmd = NEWSV(0,0);
2880 if (strEQ(cpp_cfg, "cppstdin"))
2881 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2882 sv_catpv(cpp, cpp_cfg);
2885 sv_catpvn(sv, "-I", 2);
2886 sv_catpv(sv,PRIVLIB_EXP);
2889 DEBUG_P(PerlIO_printf(Perl_debug_log,
2890 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2891 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2893 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2900 cpp_discard_flag = "";
2902 cpp_discard_flag = "-C";
2906 perl = os2_execname(aTHX);
2908 perl = PL_origargv[0];
2912 /* This strips off Perl comments which might interfere with
2913 the C pre-processor, including #!. #line directives are
2914 deliberately stripped to avoid confusion with Perl's version
2915 of #line. FWP played some golf with it so it will fit
2916 into VMS's 255 character buffer.
2919 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2921 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2923 Perl_sv_setpvf(aTHX_ cmd, "\
2924 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2925 perl, quote, code, quote, scriptname, cpp,
2926 cpp_discard_flag, sv, CPPMINUS);
2928 PL_doextract = FALSE;
2929 # ifdef IAMSUID /* actually, this is caught earlier */
2930 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2932 (void)seteuid(PL_uid); /* musn't stay setuid root */
2934 # ifdef HAS_SETREUID
2935 (void)setreuid((Uid_t)-1, PL_uid);
2937 # ifdef HAS_SETRESUID
2938 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2940 PerlProc_setuid(PL_uid);
2944 if (PerlProc_geteuid() != PL_uid)
2945 Perl_croak(aTHX_ "Can't do seteuid!\n");
2947 # endif /* IAMSUID */
2949 DEBUG_P(PerlIO_printf(Perl_debug_log,
2950 "PL_preprocess: cmd=\"%s\"\n",
2953 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2957 else if (!*scriptname) {
2958 forbid_setid("program input from stdin");
2959 PL_rsfp = PerlIO_stdin();
2962 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2963 # if defined(HAS_FCNTL) && defined(F_SETFD)
2965 /* ensure close-on-exec */
2966 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2971 # ifndef IAMSUID /* in case script is not readable before setuid */
2973 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2974 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2978 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2979 BIN_EXP, (int)PERL_REVISION,
2981 (int)PERL_SUBVERSION), PL_origargv);
2983 Perl_croak(aTHX_ "Can't do setuid\n");
2989 Perl_croak(aTHX_ "Can't open perl script: %s\n",
2992 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2993 CopFILE(PL_curcop), Strerror(errno));
2999 * I_SYSSTATVFS HAS_FSTATVFS
3001 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
3002 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
3003 * here so that metaconfig picks them up. */
3007 S_fd_on_nosuid_fs(pTHX_ int fd)
3009 int check_okay = 0; /* able to do all the required sys/libcalls */
3010 int on_nosuid = 0; /* the fd is on a nosuid fs */
3012 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3013 * fstatvfs() is UNIX98.
3014 * fstatfs() is 4.3 BSD.
3015 * ustat()+getmnt() is pre-4.3 BSD.
3016 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3017 * an irrelevant filesystem while trying to reach the right one.
3020 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3022 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3023 defined(HAS_FSTATVFS)
3024 # define FD_ON_NOSUID_CHECK_OKAY
3025 struct statvfs stfs;
3027 check_okay = fstatvfs(fd, &stfs) == 0;
3028 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3029 # endif /* fstatvfs */
3031 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3032 defined(PERL_MOUNT_NOSUID) && \
3033 defined(HAS_FSTATFS) && \
3034 defined(HAS_STRUCT_STATFS) && \
3035 defined(HAS_STRUCT_STATFS_F_FLAGS)
3036 # define FD_ON_NOSUID_CHECK_OKAY
3039 check_okay = fstatfs(fd, &stfs) == 0;
3040 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3041 # endif /* fstatfs */
3043 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3044 defined(PERL_MOUNT_NOSUID) && \
3045 defined(HAS_FSTAT) && \
3046 defined(HAS_USTAT) && \
3047 defined(HAS_GETMNT) && \
3048 defined(HAS_STRUCT_FS_DATA) && \
3050 # define FD_ON_NOSUID_CHECK_OKAY
3053 if (fstat(fd, &fdst) == 0) {
3055 if (ustat(fdst.st_dev, &us) == 0) {
3057 /* NOSTAT_ONE here because we're not examining fields which
3058 * vary between that case and STAT_ONE. */
3059 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3060 size_t cmplen = sizeof(us.f_fname);
3061 if (sizeof(fsd.fd_req.path) < cmplen)
3062 cmplen = sizeof(fsd.fd_req.path);
3063 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3064 fdst.st_dev == fsd.fd_req.dev) {
3066 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3072 # endif /* fstat+ustat+getmnt */
3074 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3075 defined(HAS_GETMNTENT) && \
3076 defined(HAS_HASMNTOPT) && \
3077 defined(MNTOPT_NOSUID)
3078 # define FD_ON_NOSUID_CHECK_OKAY
3079 FILE *mtab = fopen("/etc/mtab", "r");
3080 struct mntent *entry;
3083 if (mtab && (fstat(fd, &stb) == 0)) {
3084 while (entry = getmntent(mtab)) {
3085 if (stat(entry->mnt_dir, &fsb) == 0
3086 && fsb.st_dev == stb.st_dev)
3088 /* found the filesystem */
3090 if (hasmntopt(entry, MNTOPT_NOSUID))
3093 } /* A single fs may well fail its stat(). */
3098 # endif /* getmntent+hasmntopt */
3101 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3104 #endif /* IAMSUID */
3107 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3113 /* do we need to emulate setuid on scripts? */
3115 /* This code is for those BSD systems that have setuid #! scripts disabled
3116 * in the kernel because of a security problem. Merely defining DOSUID
3117 * in perl will not fix that problem, but if you have disabled setuid
3118 * scripts in the kernel, this will attempt to emulate setuid and setgid
3119 * on scripts that have those now-otherwise-useless bits set. The setuid
3120 * root version must be called suidperl or sperlN.NNN. If regular perl
3121 * discovers that it has opened a setuid script, it calls suidperl with
3122 * the same argv that it had. If suidperl finds that the script it has
3123 * just opened is NOT setuid root, it sets the effective uid back to the
3124 * uid. We don't just make perl setuid root because that loses the
3125 * effective uid we had before invoking perl, if it was different from the
3128 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3129 * be defined in suidperl only. suidperl must be setuid root. The
3130 * Configure script will set this up for you if you want it.
3136 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3137 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3138 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3143 #ifndef HAS_SETREUID
3144 /* On this access check to make sure the directories are readable,
3145 * there is actually a small window that the user could use to make
3146 * filename point to an accessible directory. So there is a faint
3147 * chance that someone could execute a setuid script down in a
3148 * non-accessible directory. I don't know what to do about that.
3149 * But I don't think it's too important. The manual lies when
3150 * it says access() is useful in setuid programs.
3152 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
3153 Perl_croak(aTHX_ "Permission denied");
3155 /* If we can swap euid and uid, then we can determine access rights
3156 * with a simple stat of the file, and then compare device and
3157 * inode to make sure we did stat() on the same file we opened.
3158 * Then we just have to make sure he or she can execute it.
3165 setreuid(PL_euid,PL_uid) < 0
3168 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
3171 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
3172 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
3173 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
3174 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
3175 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3176 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
3177 Perl_croak(aTHX_ "Permission denied");
3179 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3180 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3181 (void)PerlIO_close(PL_rsfp);
3182 Perl_croak(aTHX_ "Permission denied\n");
3186 setreuid(PL_uid,PL_euid) < 0
3188 # if defined(HAS_SETRESUID)
3189 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3192 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3193 Perl_croak(aTHX_ "Can't reswap uid and euid");
3194 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3195 Perl_croak(aTHX_ "Permission denied\n");
3197 #endif /* HAS_SETREUID */
3198 #endif /* IAMSUID */
3200 if (!S_ISREG(PL_statbuf.st_mode))
3201 Perl_croak(aTHX_ "Permission denied");
3202 if (PL_statbuf.st_mode & S_IWOTH)
3203 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3204 PL_doswitches = FALSE; /* -s is insecure in suid */
3205 CopLINE_inc(PL_curcop);
3206 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3207 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3208 Perl_croak(aTHX_ "No #! line");
3209 s = SvPV(PL_linestr,n_a)+2;
3211 while (!isSPACE(*s)) s++;
3212 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3213 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3214 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3215 Perl_croak(aTHX_ "Not a perl script");
3216 while (*s == ' ' || *s == '\t') s++;
3218 * #! arg must be what we saw above. They can invoke it by
3219 * mentioning suidperl explicitly, but they may not add any strange
3220 * arguments beyond what #! says if they do invoke suidperl that way.
3222 len = strlen(validarg);
3223 if (strEQ(validarg," PHOOEY ") ||
3224 strnNE(s,validarg,len) || !isSPACE(s[len]))
3225 Perl_croak(aTHX_ "Args must match #! line");
3228 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3229 PL_euid == PL_statbuf.st_uid)
3231 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3232 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3233 #endif /* IAMSUID */
3235 if (PL_euid) { /* oops, we're not the setuid root perl */
3236 (void)PerlIO_close(PL_rsfp);
3240 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3241 (int)PERL_REVISION, (int)PERL_VERSION,
3242 (int)PERL_SUBVERSION), PL_origargv);
3245 Perl_croak(aTHX_ "Can't do setuid\n");
3248 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3250 (void)setegid(PL_statbuf.st_gid);
3253 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3255 #ifdef HAS_SETRESGID
3256 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3258 PerlProc_setgid(PL_statbuf.st_gid);
3262 if (PerlProc_getegid() != PL_statbuf.st_gid)
3263 Perl_croak(aTHX_ "Can't do setegid!\n");
3265 if (PL_statbuf.st_mode & S_ISUID) {
3266 if (PL_statbuf.st_uid != PL_euid)
3268 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3271 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3273 #ifdef HAS_SETRESUID
3274 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3276 PerlProc_setuid(PL_statbuf.st_uid);
3280 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3281 Perl_croak(aTHX_ "Can't do seteuid!\n");
3283 else if (PL_uid) { /* oops, mustn't run as root */
3285 (void)seteuid((Uid_t)PL_uid);
3288 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3290 #ifdef HAS_SETRESUID
3291 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3293 PerlProc_setuid((Uid_t)PL_uid);
3297 if (PerlProc_geteuid() != PL_uid)
3298 Perl_croak(aTHX_ "Can't do seteuid!\n");
3301 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3302 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3305 else if (PL_preprocess)
3306 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3307 else if (fdscript >= 0)
3308 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3310 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
3312 /* We absolutely must clear out any saved ids here, so we */
3313 /* exec the real perl, substituting fd script for scriptname. */
3314 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3315 PerlIO_rewind(PL_rsfp);
3316 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3317 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3318 if (!PL_origargv[which])
3319 Perl_croak(aTHX_ "Permission denied");
3320 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3321 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3322 #if defined(HAS_FCNTL) && defined(F_SETFD)
3323 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3326 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3327 (int)PERL_REVISION, (int)PERL_VERSION,
3328 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3330 Perl_croak(aTHX_ "Can't do setuid\n");
3331 #endif /* IAMSUID */
3333 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3334 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3335 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3336 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3338 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3341 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3342 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3343 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3344 /* not set-id, must be wrapped */
3350 S_find_beginning(pTHX)
3352 register char *s, *s2;
3353 #ifdef MACOS_TRADITIONAL
3357 /* skip forward in input to the real script? */
3360 #ifdef MACOS_TRADITIONAL
3361 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3363 while (PL_doextract || gMacPerl_AlwaysExtract) {
3364 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3365 if (!gMacPerl_AlwaysExtract)
3366 Perl_croak(aTHX_ "No Perl script found in input\n");
3368 if (PL_doextract) /* require explicit override ? */
3369 if (!OverrideExtract(PL_origfilename))
3370 Perl_croak(aTHX_ "User aborted script\n");
3372 PL_doextract = FALSE;
3374 /* Pater peccavi, file does not have #! */
3375 PerlIO_rewind(PL_rsfp);
3380 while (PL_doextract) {
3381 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3382 Perl_croak(aTHX_ "No Perl script found in input\n");
3385 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3386 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3387 PL_doextract = FALSE;
3388 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3390 while (*s == ' ' || *s == '\t') s++;
3392 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3393 if (strnEQ(s2-4,"perl",4))
3395 while ((s = moreswitches(s)))
3398 #ifdef MACOS_TRADITIONAL
3399 /* We are always searching for the #!perl line in MacPerl,
3400 * so if we find it, still keep the line count correct
3401 * by counting lines we already skipped over
3403 for (; maclines > 0 ; maclines--)
3404 PerlIO_ungetc(PL_rsfp, '\n');
3408 /* gMacPerl_AlwaysExtract is false in MPW tool */
3409 } else if (gMacPerl_AlwaysExtract) {
3420 PL_uid = PerlProc_getuid();
3421 PL_euid = PerlProc_geteuid();
3422 PL_gid = PerlProc_getgid();
3423 PL_egid = PerlProc_getegid();
3425 PL_uid |= PL_gid << 16;
3426 PL_euid |= PL_egid << 16;
3428 /* Should not happen: */
3429 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3430 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3433 /* This is used very early in the lifetime of the program,
3434 * before even the options are parsed, so PL_tainting has
3435 * not been initialized properly. */
3437 Perl_doing_taint(int argc, char *argv[], char *envp[])
3439 #ifndef PERL_IMPLICIT_SYS
3440 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3441 * before we have an interpreter-- and the whole point of this
3442 * function is to be called at such an early stage. If you are on
3443 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3444 * "tainted because running with altered effective ids', you'll
3445 * have to add your own checks somewhere in here. The two most
3446 * known samples of 'implicitness' are Win32 and NetWare, neither
3447 * of which has much of concept of 'uids'. */
3448 int uid = PerlProc_getuid();
3449 int euid = PerlProc_geteuid();
3450 int gid = PerlProc_getgid();
3451 int egid = PerlProc_getegid();
3457 if (uid && (euid != uid || egid != gid))
3459 #endif /* !PERL_IMPLICIT_SYS */
3460 /* This is a really primitive check; environment gets ignored only
3461 * if -T are the first chars together; otherwise one gets
3462 * "Too late" message. */
3463 if ( argc > 1 && argv[1][0] == '-'
3464 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3470 S_forbid_setid(pTHX_ char *s)
3472 if (PL_euid != PL_uid)
3473 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3474 if (PL_egid != PL_gid)
3475 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3479 Perl_init_debugger(pTHX)
3481 HV *ostash = PL_curstash;
3483 PL_curstash = PL_debstash;
3484 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3485 AvREAL_off(PL_dbargs);
3486 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3487 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3488 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3489 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3490 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3491 sv_setiv(PL_DBsingle, 0);
3492 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3493 sv_setiv(PL_DBtrace, 0);
3494 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3495 sv_setiv(PL_DBsignal, 0);
3496 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3497 sv_setiv(PL_DBassertion, 0);
3498 PL_curstash = ostash;
3501 #ifndef STRESS_REALLOC
3502 #define REASONABLE(size) (size)
3504 #define REASONABLE(size) (1) /* unreasonable */
3508 Perl_init_stacks(pTHX)
3510 /* start with 128-item stack and 8K cxstack */
3511 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3512 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3513 PL_curstackinfo->si_type = PERLSI_MAIN;
3514 PL_curstack = PL_curstackinfo->si_stack;
3515 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3517 PL_stack_base = AvARRAY(PL_curstack);
3518 PL_stack_sp = PL_stack_base;
3519 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3521 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3524 PL_tmps_max = REASONABLE(128);
3526 New(54,PL_markstack,REASONABLE(32),I32);
3527 PL_markstack_ptr = PL_markstack;
3528 PL_markstack_max = PL_markstack + REASONABLE(32);
3532 New(54,PL_scopestack,REASONABLE(32),I32);
3533 PL_scopestack_ix = 0;
3534 PL_scopestack_max = REASONABLE(32);
3536 New(54,PL_savestack,REASONABLE(128),ANY);
3537 PL_savestack_ix = 0;
3538 PL_savestack_max = REASONABLE(128);
3540 New(54,PL_retstack,REASONABLE(16),OP*);
3542 PL_retstack_max = REASONABLE(16);
3550 while (PL_curstackinfo->si_next)
3551 PL_curstackinfo = PL_curstackinfo->si_next;
3552 while (PL_curstackinfo) {
3553 PERL_SI *p = PL_curstackinfo->si_prev;
3554 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3555 Safefree(PL_curstackinfo->si_cxstack);
3556 Safefree(PL_curstackinfo);
3557 PL_curstackinfo = p;
3559 Safefree(PL_tmps_stack);
3560 Safefree(PL_markstack);
3561 Safefree(PL_scopestack);
3562 Safefree(PL_savestack);
3563 Safefree(PL_retstack);
3572 lex_start(PL_linestr);
3574 PL_subname = newSVpvn("main",4);
3578 S_init_predump_symbols(pTHX)
3583 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3584 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3585 GvMULTI_on(PL_stdingv);
3586 io = GvIOp(PL_stdingv);
3587 IoTYPE(io) = IoTYPE_RDONLY;
3588 IoIFP(io) = PerlIO_stdin();
3589 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3591 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3593 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3596 IoTYPE(io) = IoTYPE_WRONLY;
3597 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3599 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3601 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3603 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3604 GvMULTI_on(PL_stderrgv);
3605 io = GvIOp(PL_stderrgv);
3606 IoTYPE(io) = IoTYPE_WRONLY;
3607 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3608 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3610 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3612 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3615 Safefree(PL_osname);
3616 PL_osname = savepv(OSNAME);
3620 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3623 argc--,argv++; /* skip name of script */
3624 if (PL_doswitches) {
3625 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3628 if (argv[0][1] == '-' && !argv[0][2]) {
3632 if ((s = strchr(argv[0], '='))) {
3634 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3637 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3640 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3641 GvMULTI_on(PL_argvgv);
3642 (void)gv_AVadd(PL_argvgv);
3643 av_clear(GvAVn(PL_argvgv));
3644 for (; argc > 0; argc--,argv++) {
3645 SV *sv = newSVpv(argv[0],0);
3646 av_push(GvAVn(PL_argvgv),sv);
3647 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3648 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3651 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3652 (void)sv_utf8_decode(sv);
3657 #ifdef HAS_PROCSELFEXE
3658 /* This is a function so that we don't hold on to MAXPATHLEN
3659 bytes of stack longer than necessary
3662 S_procself_val(pTHX_ SV *sv, char *arg0)
3664 char buf[MAXPATHLEN];
3665 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3667 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3668 includes a spurious NUL which will cause $^X to fail in system
3669 or backticks (this will prevent extensions from being built and
3670 many tests from working). readlink is not meant to add a NUL.
3671 Normal readlink works fine.
3673 if (len > 0 && buf[len-1] == '\0') {
3677 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3678 returning the text "unknown" from the readlink rather than the path
3679 to the executable (or returning an error from the readlink). Any valid
3680 path has a '/' in it somewhere, so use that to validate the result.
3681 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3683 if (len > 0 && memchr(buf, '/', len)) {
3684 sv_setpvn(sv,buf,len);
3690 #endif /* HAS_PROCSELFEXE */
3693 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3699 PL_toptarget = NEWSV(0,0);
3700 sv_upgrade(PL_toptarget, SVt_PVFM);
3701 sv_setpvn(PL_toptarget, "", 0);
3702 PL_bodytarget = NEWSV(0,0);
3703 sv_upgrade(PL_bodytarget, SVt_PVFM);
3704 sv_setpvn(PL_bodytarget, "", 0);
3705 PL_formtarget = PL_bodytarget;
3709 init_argv_symbols(argc,argv);
3711 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3712 #ifdef MACOS_TRADITIONAL
3713 /* $0 is not majick on a Mac */
3714 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3716 sv_setpv(GvSV(tmpgv),PL_origfilename);
3717 magicname("0", "0", 1);
3720 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3721 #ifdef HAS_PROCSELFEXE
3722 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3725 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3727 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3731 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3733 GvMULTI_on(PL_envgv);
3734 hv = GvHVn(PL_envgv);
3735 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3736 #ifdef USE_ENVIRON_ARRAY
3737 /* Note that if the supplied env parameter is actually a copy
3738 of the global environ then it may now point to free'd memory
3739 if the environment has been modified since. To avoid this
3740 problem we treat env==NULL as meaning 'use the default'
3745 # ifdef USE_ITHREADS
3746 && PL_curinterp == aTHX
3750 environ[0] = Nullch;
3753 for (; *env; env++) {
3754 if (!(s = strchr(*env,'=')))
3761 sv = newSVpv(s+1, 0);
3762 (void)hv_store(hv, *env, s - *env, sv, 0);
3766 #endif /* USE_ENVIRON_ARRAY */
3769 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3770 SvREADONLY_off(GvSV(tmpgv));
3771 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3772 SvREADONLY_on(GvSV(tmpgv));
3774 #ifdef THREADS_HAVE_PIDS
3775 PL_ppid = (IV)getppid();
3778 /* touch @F array to prevent spurious warnings 20020415 MJD */
3780 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3782 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3783 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3784 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3788 S_init_perllib(pTHX)
3793 s = PerlEnv_getenv("PERL5LIB");
3795 incpush(s, TRUE, TRUE, TRUE);
3797 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3799 /* Treat PERL5?LIB as a possible search list logical name -- the
3800 * "natural" VMS idiom for a Unix path string. We allow each
3801 * element to be a set of |-separated directories for compatibility.
3805 if (my_trnlnm("PERL5LIB",buf,0))
3806 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3808 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3812 /* Use the ~-expanded versions of APPLLIB (undocumented),
3813 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3816 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3820 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3822 #ifdef MACOS_TRADITIONAL
3825 SV * privdir = NEWSV(55, 0);
3826 char * macperl = PerlEnv_getenv("MACPERL");
3831 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3832 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3833 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3834 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3835 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3836 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3838 SvREFCNT_dec(privdir);
3841 incpush(":", FALSE, FALSE, TRUE);
3844 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3847 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3849 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3853 /* sitearch is always relative to sitelib on Windows for
3854 * DLL-based path intuition to work correctly */
3855 # if !defined(WIN32)
3856 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3862 /* this picks up sitearch as well */
3863 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3865 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3869 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3870 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3873 #ifdef PERL_VENDORARCH_EXP
3874 /* vendorarch is always relative to vendorlib on Windows for
3875 * DLL-based path intuition to work correctly */
3876 # if !defined(WIN32)
3877 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3881 #ifdef PERL_VENDORLIB_EXP
3883 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3885 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3889 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3890 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3893 #ifdef PERL_OTHERLIBDIRS
3894 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3898 incpush(".", FALSE, FALSE, TRUE);
3899 #endif /* MACOS_TRADITIONAL */
3902 #if defined(DOSISH) || defined(EPOC)
3903 # define PERLLIB_SEP ';'
3906 # define PERLLIB_SEP '|'
3908 # if defined(MACOS_TRADITIONAL)
3909 # define PERLLIB_SEP ','
3911 # define PERLLIB_SEP ':'
3915 #ifndef PERLLIB_MANGLE
3916 # define PERLLIB_MANGLE(s,n) (s)
3920 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3922 SV *subdir = Nullsv;
3927 if (addsubdirs || addoldvers) {
3928 subdir = sv_newmortal();
3931 /* Break at all separators */
3933 SV *libdir = NEWSV(55,0);
3936 /* skip any consecutive separators */
3938 while ( *p == PERLLIB_SEP ) {
3939 /* Uncomment the next line for PATH semantics */
3940 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3945 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3946 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3951 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3952 p = Nullch; /* break out */
3954 #ifdef MACOS_TRADITIONAL
3955 if (!strchr(SvPVX(libdir), ':')) {
3958 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3960 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3961 sv_catpv(libdir, ":");
3965 * BEFORE pushing libdir onto @INC we may first push version- and
3966 * archname-specific sub-directories.
3968 if (addsubdirs || addoldvers) {
3969 #ifdef PERL_INC_VERSION_LIST
3970 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3971 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3972 const char **incver;
3979 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3981 while (unix[len-1] == '/') len--; /* Cosmetic */
3982 sv_usepvn(libdir,unix,len);
3985 PerlIO_printf(Perl_error_log,
3986 "Failed to unixify @INC element \"%s\"\n",
3990 #ifdef MACOS_TRADITIONAL
3991 #define PERL_AV_SUFFIX_FMT ""
3992 #define PERL_ARCH_FMT "%s:"
3993 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
3995 #define PERL_AV_SUFFIX_FMT "/"
3996 #define PERL_ARCH_FMT "/%s"
3997 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
3999 /* .../version/archname if -d .../version/archname */
4000 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
4002 (int)PERL_REVISION, (int)PERL_VERSION,
4003 (int)PERL_SUBVERSION, ARCHNAME);
4004 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4005 S_ISDIR(tmpstatbuf.st_mode))
4006 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4008 /* .../version if -d .../version */
4009 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4010 (int)PERL_REVISION, (int)PERL_VERSION,
4011 (int)PERL_SUBVERSION);
4012 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4013 S_ISDIR(tmpstatbuf.st_mode))
4014 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4016 /* .../archname if -d .../archname */
4017 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4018 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4019 S_ISDIR(tmpstatbuf.st_mode))
4020 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4023 #ifdef PERL_INC_VERSION_LIST
4025 for (incver = incverlist; *incver; incver++) {
4026 /* .../xxx if -d .../xxx */
4027 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4028 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4029 S_ISDIR(tmpstatbuf.st_mode))
4030 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4036 /* finally push this lib directory on the end of @INC */
4037 av_push(GvAVn(PL_incgv), libdir);
4041 #ifdef USE_5005THREADS
4042 STATIC struct perl_thread *
4043 S_init_main_thread(pTHX)
4045 #if !defined(PERL_IMPLICIT_CONTEXT)
4046 struct perl_thread *thr;
4050 Newz(53, thr, 1, struct perl_thread);
4051 PL_curcop = &PL_compiling;
4052 thr->interp = PERL_GET_INTERP;
4053 thr->cvcache = newHV();
4054 thr->threadsv = newAV();
4055 /* thr->threadsvp is set when find_threadsv is called */
4056 thr->specific = newAV();
4057 thr->flags = THRf_R_JOINABLE;
4058 MUTEX_INIT(&thr->mutex);
4059 /* Handcraft thrsv similarly to mess_sv */
4060 New(53, PL_thrsv, 1, SV);
4061 Newz(53, xpv, 1, XPV);
4062 SvFLAGS(PL_thrsv) = SVt_PV;
4063 SvANY(PL_thrsv) = (void*)xpv;
4064 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4065 SvPVX(PL_thrsv) = (char*)thr;
4066 SvCUR_set(PL_thrsv, sizeof(thr));
4067 SvLEN_set(PL_thrsv, sizeof(thr));
4068 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4069 thr->oursv = PL_thrsv;
4070 PL_chopset = " \n-";
4073 MUTEX_LOCK(&PL_threads_mutex);
4079 MUTEX_UNLOCK(&PL_threads_mutex);
4081 #ifdef HAVE_THREAD_INTERN
4082 Perl_init_thread_intern(thr);
4085 #ifdef SET_THREAD_SELF
4086 SET_THREAD_SELF(thr);
4088 thr->self = pthread_self();
4089 #endif /* SET_THREAD_SELF */
4093 * These must come after the thread self setting
4094 * because sv_setpvn does SvTAINT and the taint
4095 * fields thread selfness being set.
4097 PL_toptarget = NEWSV(0,0);
4098 sv_upgrade(PL_toptarget, SVt_PVFM);
4099 sv_setpvn(PL_toptarget, "", 0);
4100 PL_bodytarget = NEWSV(0,0);
4101 sv_upgrade(PL_bodytarget, SVt_PVFM);
4102 sv_setpvn(PL_bodytarget, "", 0);
4103 PL_formtarget = PL_bodytarget;
4104 thr->errsv = newSVpvn("", 0);
4105 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4108 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4109 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4110 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4111 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4112 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4113 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4115 PL_reginterp_cnt = 0;
4119 #endif /* USE_5005THREADS */
4122 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4125 line_t oldline = CopLINE(PL_curcop);
4131 while (AvFILL(paramList) >= 0) {
4132 cv = (CV*)av_shift(paramList);
4134 if (paramList == PL_beginav) {
4135 /* save PL_beginav for compiler */
4136 if (! PL_beginav_save)
4137 PL_beginav_save = newAV();
4138 av_push(PL_beginav_save, (SV*)cv);
4140 else if (paramList == PL_checkav) {
4141 /* save PL_checkav for compiler */
4142 if (! PL_checkav_save)
4143 PL_checkav_save = newAV();
4144 av_push(PL_checkav_save, (SV*)cv);
4149 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4150 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4156 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4160 (void)SvPV(atsv, len);
4162 PL_curcop = &PL_compiling;
4163 CopLINE_set(PL_curcop, oldline);
4164 if (paramList == PL_beginav)
4165 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4167 Perl_sv_catpvf(aTHX_ atsv,
4168 "%s failed--call queue aborted",
4169 paramList == PL_checkav ? "CHECK"
4170 : paramList == PL_initav ? "INIT"
4172 while (PL_scopestack_ix > oldscope)
4175 Perl_croak(aTHX_ "%"SVf"", atsv);
4182 /* my_exit() was called */
4183 while (PL_scopestack_ix > oldscope)
4186 PL_curstash = PL_defstash;
4187 PL_curcop = &PL_compiling;
4188 CopLINE_set(PL_curcop, oldline);
4190 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4191 if (paramList == PL_beginav)
4192 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4194 Perl_croak(aTHX_ "%s failed--call queue aborted",
4195 paramList == PL_checkav ? "CHECK"
4196 : paramList == PL_initav ? "INIT"
4203 PL_curcop = &PL_compiling;
4204 CopLINE_set(PL_curcop, oldline);
4207 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4215 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4217 S_vcall_list_body(pTHX_ va_list args)
4219 CV *cv = va_arg(args, CV*);
4220 return call_list_body(cv);
4225 S_call_list_body(pTHX_ CV *cv)
4227 PUSHMARK(PL_stack_sp);
4228 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4233 Perl_my_exit(pTHX_ U32 status)
4235 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4236 thr, (unsigned long) status));
4245 STATUS_NATIVE_SET(status);
4252 Perl_my_failure_exit(pTHX)
4255 if (vaxc$errno & 1) {
4256 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4257 STATUS_NATIVE_SET(44);
4260 if (!vaxc$errno && errno) /* unlikely */
4261 STATUS_NATIVE_SET(44);
4263 STATUS_NATIVE_SET(vaxc$errno);
4268 STATUS_POSIX_SET(errno);
4270 exitstatus = STATUS_POSIX >> 8;
4271 if (exitstatus & 255)
4272 STATUS_POSIX_SET(exitstatus);
4274 STATUS_POSIX_SET(255);
4281 S_my_exit_jump(pTHX)
4283 register PERL_CONTEXT *cx;
4288 SvREFCNT_dec(PL_e_script);
4289 PL_e_script = Nullsv;
4292 POPSTACK_TO(PL_mainstack);
4293 if (cxstack_ix >= 0) {
4296 POPBLOCK(cx,PL_curpm);
4304 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4307 p = SvPVX(PL_e_script);
4308 nl = strchr(p, '\n');
4309 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4311 filter_del(read_e_script);
4314 sv_catpvn(buf_sv, p, nl-p);
4315 sv_chop(PL_e_script, nl);