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.
903 * If you set PL_hash_seed (and assumedly also PL_hash_seed_set) yourself,
904 * it is your responsibility to provide a good random seed!
905 * You can also define PERL_HASH_SEED in compile time, see hv.h. */
906 if (!PL_hash_seed_set)
907 PL_hash_seed = get_hash_seed();
909 char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
915 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
919 #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
925 /* Set PL_origalen be the sum of the contiguous argv[]
926 * elements plus the size of the env in case that it is
927 * contiguous with the argv[]. This is used in mg.c:mg_set()
928 * as the maximum modifiable length of $0. In the worst case
929 * the area we are able to modify is limited to the size of
930 * the original argv[0]. (See below for 'contiguous', though.)
935 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
936 /* Do the mask check only if the args seem like aligned. */
938 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
940 /* See if all the arguments are contiguous in memory. Note
941 * that 'contiguous' is a loose term because some platforms
942 * align the argv[] and the envp[]. If the arguments look
943 * like non-aligned, assume that they are 'strictly' or
944 * 'traditionally' contiguous. If the arguments look like
945 * aligned, we just check that they are within aligned
946 * PTRSIZE bytes. As long as no system has something bizarre
947 * like the argv[] interleaved with some other data, we are
948 * fine. (Did I just evoke Murphy's Law?) --jhi */
951 for (i = 1; i < PL_origargc; i++) {
952 if ((PL_origargv[i] == s + 1
954 || PL_origargv[i] == s + 2
959 (PL_origargv[i] > s &&
961 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
970 /* Can we grab env area too to be used as the area for $0? */
971 if (PL_origenviron) {
972 if ((PL_origenviron[0] == s + 1
974 || (PL_origenviron[0] == s + 9 && (s += 8))
979 (PL_origenviron[0] > s &&
981 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
985 s = PL_origenviron[0];
988 my_setenv("NoNe SuCh", Nullch);
989 /* Force copy of environment. */
990 for (i = 1; PL_origenviron[i]; i++) {
991 if (PL_origenviron[i] == s + 1
994 (PL_origenviron[i] > s &&
996 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
999 s = PL_origenviron[i];
1007 PL_origalen = s - PL_origargv[0];
1012 /* Come here if running an undumped a.out. */
1014 PL_origfilename = savepv(argv[0]);
1015 PL_do_undump = FALSE;
1016 cxstack_ix = -1; /* start label stack again */
1018 init_postdump_symbols(argc,argv,env);
1023 op_free(PL_main_root);
1024 PL_main_root = Nullop;
1026 PL_main_start = Nullop;
1027 SvREFCNT_dec(PL_main_cv);
1028 PL_main_cv = Nullcv;
1031 oldscope = PL_scopestack_ix;
1032 PL_dowarn = G_WARN_OFF;
1034 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1035 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1041 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1042 parse_body(env,xsinit);
1045 call_list(oldscope, PL_checkav);
1052 /* my_exit() was called */
1053 while (PL_scopestack_ix > oldscope)
1056 PL_curstash = PL_defstash;
1058 call_list(oldscope, PL_checkav);
1059 ret = STATUS_NATIVE_EXPORT;
1062 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1070 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1072 S_vparse_body(pTHX_ va_list args)
1074 char **env = va_arg(args, char**);
1075 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1077 return parse_body(env, xsinit);
1082 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1084 int argc = PL_origargc;
1085 char **argv = PL_origargv;
1086 char *scriptname = NULL;
1088 VOL bool dosearch = FALSE;
1089 char *validarg = "";
1092 char *cddir = Nullch;
1094 sv_setpvn(PL_linestr,"",0);
1095 sv = newSVpvn("",0); /* first used for -I flags */
1099 for (argc--,argv++; argc > 0; argc--,argv++) {
1100 if (argv[0][0] != '-' || !argv[0][1])
1104 validarg = " PHOOEY ";
1112 #ifndef PERL_STRICT_CR
1137 if ((s = moreswitches(s)))
1142 CHECK_MALLOC_TOO_LATE_FOR('t');
1143 if( !PL_tainting ) {
1144 PL_taint_warn = TRUE;
1150 CHECK_MALLOC_TOO_LATE_FOR('T');
1152 PL_taint_warn = FALSE;
1157 #ifdef MACOS_TRADITIONAL
1158 /* ignore -e for Dev:Pseudo argument */
1159 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1162 if (PL_euid != PL_uid || PL_egid != PL_gid)
1163 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1165 PL_e_script = newSVpvn("",0);
1166 filter_add(read_e_script, NULL);
1169 sv_catpv(PL_e_script, s);
1171 sv_catpv(PL_e_script, argv[1]);
1175 Perl_croak(aTHX_ "No code specified for -e");
1176 sv_catpv(PL_e_script, "\n");
1179 case 'I': /* -I handled both here and in moreswitches() */
1181 if (!*++s && (s=argv[1]) != Nullch) {
1186 STRLEN len = strlen(s);
1187 p = savepvn(s, len);
1188 incpush(p, TRUE, TRUE, FALSE);
1189 sv_catpvn(sv, "-I", 2);
1190 sv_catpvn(sv, p, len);
1191 sv_catpvn(sv, " ", 1);
1195 Perl_croak(aTHX_ "No directory specified for -I");
1199 PL_preprocess = TRUE;
1209 PL_preambleav = newAV();
1210 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1212 PL_Sv = newSVpv("print myconfig();",0);
1214 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1216 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1218 sv_catpv(PL_Sv,"\" Compile-time options:");
1220 sv_catpv(PL_Sv," DEBUGGING");
1222 # ifdef MULTIPLICITY
1223 sv_catpv(PL_Sv," MULTIPLICITY");
1225 # ifdef USE_5005THREADS
1226 sv_catpv(PL_Sv," USE_5005THREADS");
1228 # ifdef USE_ITHREADS
1229 sv_catpv(PL_Sv," USE_ITHREADS");
1231 # ifdef USE_64_BIT_INT
1232 sv_catpv(PL_Sv," USE_64_BIT_INT");
1234 # ifdef USE_64_BIT_ALL
1235 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1237 # ifdef USE_LONG_DOUBLE
1238 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1240 # ifdef USE_LARGE_FILES
1241 sv_catpv(PL_Sv," USE_LARGE_FILES");
1244 sv_catpv(PL_Sv," USE_SOCKS");
1246 # ifdef PERL_IMPLICIT_CONTEXT
1247 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1249 # ifdef PERL_IMPLICIT_SYS
1250 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1252 sv_catpv(PL_Sv,"\\n\",");
1254 #if defined(LOCAL_PATCH_COUNT)
1255 if (LOCAL_PATCH_COUNT > 0) {
1257 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1258 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1259 if (PL_localpatches[i])
1260 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1264 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1267 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1269 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1272 sv_catpv(PL_Sv, "; \
1274 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1277 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1280 print \" \\%ENV:\\n @env\\n\" if @env; \
1281 print \" \\@INC:\\n @INC\\n\";");
1284 PL_Sv = newSVpv("config_vars(qw(",0);
1285 sv_catpv(PL_Sv, ++s);
1286 sv_catpv(PL_Sv, "))");
1289 av_push(PL_preambleav, PL_Sv);
1290 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1293 PL_doextract = TRUE;
1301 if (!*++s || isSPACE(*s)) {
1305 /* catch use of gnu style long options */
1306 if (strEQ(s, "version")) {
1310 if (strEQ(s, "help")) {
1317 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1321 sv_setsv(get_sv("/", TRUE), PL_rs);
1324 #ifndef SECURE_INTERNAL_GETENV
1327 (s = PerlEnv_getenv("PERL5OPT")))
1332 if (*s == '-' && *(s+1) == 'T') {
1333 CHECK_MALLOC_TOO_LATE_FOR('T');
1335 PL_taint_warn = FALSE;
1338 char *popt_copy = Nullch;
1351 if (!strchr("DIMUdmtwA", *s))
1352 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1356 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1357 s = popt_copy + (s - popt);
1358 d = popt_copy + (d - popt);
1365 if( !PL_tainting ) {
1366 PL_taint_warn = TRUE;
1376 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1377 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1381 scriptname = argv[0];
1384 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1386 else if (scriptname == Nullch) {
1388 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1396 open_script(scriptname,dosearch,sv,&fdscript);
1398 validate_suid(validarg, scriptname,fdscript);
1401 #if defined(SIGCHLD) || defined(SIGCLD)
1404 # define SIGCHLD SIGCLD
1406 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1407 if (sigstate == SIG_IGN) {
1408 if (ckWARN(WARN_SIGNAL))
1409 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1410 "Can't ignore signal CHLD, forcing to default");
1411 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1417 #ifdef MACOS_TRADITIONAL
1418 if (PL_doextract || gMacPerl_AlwaysExtract) {
1423 if (cddir && PerlDir_chdir(cddir) < 0)
1424 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1428 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1429 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1430 CvUNIQUE_on(PL_compcv);
1432 CvPADLIST(PL_compcv) = pad_new(0);
1433 #ifdef USE_5005THREADS
1434 CvOWNER(PL_compcv) = 0;
1435 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1436 MUTEX_INIT(CvMUTEXP(PL_compcv));
1437 #endif /* USE_5005THREADS */
1440 boot_core_UNIVERSAL();
1442 boot_core_xsutils();
1446 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1448 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1454 # ifdef HAS_SOCKS5_INIT
1455 socks5_init(argv[0]);
1461 init_predump_symbols();
1462 /* init_postdump_symbols not currently designed to be called */
1463 /* more than once (ENV isn't cleared first, for example) */
1464 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1466 init_postdump_symbols(argc,argv,env);
1468 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1469 * PL_utf8locale is conditionally turned on by
1470 * locale.c:Perl_init_i18nl10n() if the environment
1471 * look like the user wants to use UTF-8. */
1473 /* Requires init_predump_symbols(). */
1474 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1479 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1480 * and the default open disciplines. */
1481 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1482 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1484 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1485 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1486 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1488 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1489 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1490 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1492 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1493 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1494 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1495 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1496 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1499 sv_setpvn(sv, ":utf8\0:utf8", 11);
1501 sv_setpvn(sv, ":utf8\0", 6);
1504 sv_setpvn(sv, "\0:utf8", 6);
1510 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1511 if (strEQ(s, "unsafe"))
1512 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1513 else if (strEQ(s, "safe"))
1514 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1516 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1521 /* now parse the script */
1523 SETERRNO(0,SS_NORMAL);
1525 #ifdef MACOS_TRADITIONAL
1526 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1528 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1530 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1531 MacPerl_MPWFileName(PL_origfilename));
1535 if (yyparse() || PL_error_count) {
1537 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1539 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1544 CopLINE_set(PL_curcop, 0);
1545 PL_curstash = PL_defstash;
1546 PL_preprocess = FALSE;
1548 SvREFCNT_dec(PL_e_script);
1549 PL_e_script = Nullsv;
1556 SAVECOPFILE(PL_curcop);
1557 SAVECOPLINE(PL_curcop);
1558 gv_check(PL_defstash);
1565 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1566 dump_mstats("after compilation:");
1575 =for apidoc perl_run
1577 Tells a Perl interpreter to run. See L<perlembed>.
1588 #ifdef USE_5005THREADS
1592 oldscope = PL_scopestack_ix;
1597 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1599 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1605 cxstack_ix = -1; /* start context stack again */
1607 case 0: /* normal completion */
1608 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1613 case 2: /* my_exit() */
1614 while (PL_scopestack_ix > oldscope)
1617 PL_curstash = PL_defstash;
1618 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1619 PL_endav && !PL_minus_c)
1620 call_list(oldscope, PL_endav);
1622 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1623 dump_mstats("after execution: ");
1625 ret = STATUS_NATIVE_EXPORT;
1629 POPSTACK_TO(PL_mainstack);
1632 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1642 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1644 S_vrun_body(pTHX_ va_list args)
1646 I32 oldscope = va_arg(args, I32);
1648 return run_body(oldscope);
1654 S_run_body(pTHX_ I32 oldscope)
1656 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1657 PL_sawampersand ? "Enabling" : "Omitting"));
1659 if (!PL_restartop) {
1660 DEBUG_x(dump_all());
1661 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1662 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1666 #ifdef MACOS_TRADITIONAL
1667 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1668 (gMacPerl_ErrorFormat ? "# " : ""),
1669 MacPerl_MPWFileName(PL_origfilename));
1671 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1675 if (PERLDB_SINGLE && PL_DBsingle)
1676 sv_setiv(PL_DBsingle, 1);
1678 call_list(oldscope, PL_initav);
1684 PL_op = PL_restartop;
1688 else if (PL_main_start) {
1689 CvDEPTH(PL_main_cv) = 1;
1690 PL_op = PL_main_start;
1700 =head1 SV Manipulation Functions
1702 =for apidoc p||get_sv
1704 Returns the SV of the specified Perl scalar. If C<create> is set and the
1705 Perl variable does not exist then it will be created. If C<create> is not
1706 set and the variable does not exist then NULL is returned.
1712 Perl_get_sv(pTHX_ const char *name, I32 create)
1715 #ifdef USE_5005THREADS
1716 if (name[1] == '\0' && !isALPHA(name[0])) {
1717 PADOFFSET tmp = find_threadsv(name);
1718 if (tmp != NOT_IN_PAD)
1719 return THREADSV(tmp);
1721 #endif /* USE_5005THREADS */
1722 gv = gv_fetchpv(name, create, SVt_PV);
1729 =head1 Array Manipulation Functions
1731 =for apidoc p||get_av
1733 Returns the AV of the specified Perl array. If C<create> is set and the
1734 Perl variable does not exist then it will be created. If C<create> is not
1735 set and the variable does not exist then NULL is returned.
1741 Perl_get_av(pTHX_ const char *name, I32 create)
1743 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1752 =head1 Hash Manipulation Functions
1754 =for apidoc p||get_hv
1756 Returns the HV of the specified Perl hash. If C<create> is set and the
1757 Perl variable does not exist then it will be created. If C<create> is not
1758 set and the variable does not exist then NULL is returned.
1764 Perl_get_hv(pTHX_ const char *name, I32 create)
1766 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1775 =head1 CV Manipulation Functions
1777 =for apidoc p||get_cv
1779 Returns the CV of the specified Perl subroutine. If C<create> is set and
1780 the Perl subroutine does not exist then it will be declared (which has the
1781 same effect as saying C<sub name;>). If C<create> is not set and the
1782 subroutine does not exist then NULL is returned.
1788 Perl_get_cv(pTHX_ const char *name, I32 create)
1790 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1791 /* XXX unsafe for threads if eval_owner isn't held */
1792 /* XXX this is probably not what they think they're getting.
1793 * It has the same effect as "sub name;", i.e. just a forward
1795 if (create && !GvCVu(gv))
1796 return newSUB(start_subparse(FALSE, 0),
1797 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1805 /* Be sure to refetch the stack pointer after calling these routines. */
1809 =head1 Callback Functions
1811 =for apidoc p||call_argv
1813 Performs a callback to the specified Perl sub. See L<perlcall>.
1819 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1821 /* See G_* flags in cop.h */
1822 /* null terminated arg list */
1829 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1834 return call_pv(sub_name, flags);
1838 =for apidoc p||call_pv
1840 Performs a callback to the specified Perl sub. See L<perlcall>.
1846 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1847 /* name of the subroutine */
1848 /* See G_* flags in cop.h */
1850 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1854 =for apidoc p||call_method
1856 Performs a callback to the specified Perl method. The blessed object must
1857 be on the stack. See L<perlcall>.
1863 Perl_call_method(pTHX_ const char *methname, I32 flags)
1864 /* name of the subroutine */
1865 /* See G_* flags in cop.h */
1867 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1870 /* May be called with any of a CV, a GV, or an SV containing the name. */
1872 =for apidoc p||call_sv
1874 Performs a callback to the Perl sub whose name is in the SV. See
1881 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1882 /* See G_* flags in cop.h */
1885 LOGOP myop; /* fake syntax tree node */
1888 volatile I32 retval = 0;
1890 bool oldcatch = CATCH_GET;
1895 if (flags & G_DISCARD) {
1900 Zero(&myop, 1, LOGOP);
1901 myop.op_next = Nullop;
1902 if (!(flags & G_NOARGS))
1903 myop.op_flags |= OPf_STACKED;
1904 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1905 (flags & G_ARRAY) ? OPf_WANT_LIST :
1910 EXTEND(PL_stack_sp, 1);
1911 *++PL_stack_sp = sv;
1913 oldscope = PL_scopestack_ix;
1915 if (PERLDB_SUB && PL_curstash != PL_debstash
1916 /* Handle first BEGIN of -d. */
1917 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1918 /* Try harder, since this may have been a sighandler, thus
1919 * curstash may be meaningless. */
1920 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1921 && !(flags & G_NODEBUG))
1922 PL_op->op_private |= OPpENTERSUB_DB;
1924 if (flags & G_METHOD) {
1925 Zero(&method_op, 1, UNOP);
1926 method_op.op_next = PL_op;
1927 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1928 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1929 PL_op = (OP*)&method_op;
1932 if (!(flags & G_EVAL)) {
1934 call_body((OP*)&myop, FALSE);
1935 retval = PL_stack_sp - (PL_stack_base + oldmark);
1936 CATCH_SET(oldcatch);
1939 myop.op_other = (OP*)&myop;
1941 /* we're trying to emulate pp_entertry() here */
1943 register PERL_CONTEXT *cx;
1944 I32 gimme = GIMME_V;
1949 push_return(Nullop);
1950 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1952 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1954 PL_in_eval = EVAL_INEVAL;
1955 if (flags & G_KEEPERR)
1956 PL_in_eval |= EVAL_KEEPERR;
1962 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1964 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1971 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1973 call_body((OP*)&myop, FALSE);
1975 retval = PL_stack_sp - (PL_stack_base + oldmark);
1976 if (!(flags & G_KEEPERR))
1983 /* my_exit() was called */
1984 PL_curstash = PL_defstash;
1987 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1988 Perl_croak(aTHX_ "Callback called exit");
1993 PL_op = PL_restartop;
1997 PL_stack_sp = PL_stack_base + oldmark;
1998 if (flags & G_ARRAY)
2002 *++PL_stack_sp = &PL_sv_undef;
2007 if (PL_scopestack_ix > oldscope) {
2011 register PERL_CONTEXT *cx;
2023 if (flags & G_DISCARD) {
2024 PL_stack_sp = PL_stack_base + oldmark;
2033 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2035 S_vcall_body(pTHX_ va_list args)
2037 OP *myop = va_arg(args, OP*);
2038 int is_eval = va_arg(args, int);
2040 call_body(myop, is_eval);
2046 S_call_body(pTHX_ OP *myop, int is_eval)
2048 if (PL_op == myop) {
2050 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2052 PL_op = Perl_pp_entersub(aTHX); /* this does */
2058 /* Eval a string. The G_EVAL flag is always assumed. */
2061 =for apidoc p||eval_sv
2063 Tells Perl to C<eval> the string in the SV.
2069 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2071 /* See G_* flags in cop.h */
2074 UNOP myop; /* fake syntax tree node */
2075 volatile I32 oldmark = SP - PL_stack_base;
2076 volatile I32 retval = 0;
2082 if (flags & G_DISCARD) {
2089 Zero(PL_op, 1, UNOP);
2090 EXTEND(PL_stack_sp, 1);
2091 *++PL_stack_sp = sv;
2092 oldscope = PL_scopestack_ix;
2094 if (!(flags & G_NOARGS))
2095 myop.op_flags = OPf_STACKED;
2096 myop.op_next = Nullop;
2097 myop.op_type = OP_ENTEREVAL;
2098 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2099 (flags & G_ARRAY) ? OPf_WANT_LIST :
2101 if (flags & G_KEEPERR)
2102 myop.op_flags |= OPf_SPECIAL;
2104 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2106 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2113 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2115 call_body((OP*)&myop,TRUE);
2117 retval = PL_stack_sp - (PL_stack_base + oldmark);
2118 if (!(flags & G_KEEPERR))
2125 /* my_exit() was called */
2126 PL_curstash = PL_defstash;
2129 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2130 Perl_croak(aTHX_ "Callback called exit");
2135 PL_op = PL_restartop;
2139 PL_stack_sp = PL_stack_base + oldmark;
2140 if (flags & G_ARRAY)
2144 *++PL_stack_sp = &PL_sv_undef;
2150 if (flags & G_DISCARD) {
2151 PL_stack_sp = PL_stack_base + oldmark;
2161 =for apidoc p||eval_pv
2163 Tells Perl to C<eval> the given string and return an SV* result.
2169 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2172 SV* sv = newSVpv(p, 0);
2174 eval_sv(sv, G_SCALAR);
2181 if (croak_on_error && SvTRUE(ERRSV)) {
2183 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2189 /* Require a module. */
2192 =head1 Embedding Functions
2194 =for apidoc p||require_pv
2196 Tells Perl to C<require> the file named by the string argument. It is
2197 analogous to the Perl code C<eval "require '$file'">. It's even
2198 implemented that way; consider using load_module instead.
2203 Perl_require_pv(pTHX_ const char *pv)
2207 PUSHSTACKi(PERLSI_REQUIRE);
2209 sv = sv_newmortal();
2210 sv_setpv(sv, "require '");
2213 eval_sv(sv, G_DISCARD);
2219 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2223 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2224 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2228 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2230 /* This message really ought to be max 23 lines.
2231 * Removed -h because the user already knows that option. Others? */
2233 static char *usage_msg[] = {
2234 "-0[octal] specify record separator (\\0, if no argument)",
2235 "-a autosplit mode with -n or -p (splits $_ into @F)",
2236 "-C enable native wide character system interfaces",
2237 "-c check syntax only (runs BEGIN and CHECK blocks)",
2238 "-d[:debugger] run program under debugger",
2239 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2240 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2241 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2242 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2243 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2244 "-l[octal] enable line ending processing, specifies line terminator",
2245 "-[mM][-]module execute `use/no module...' before executing program",
2246 "-n assume 'while (<>) { ... }' loop around program",
2247 "-p assume loop like -n but print line also, like sed",
2248 "-P run program through C preprocessor before compilation",
2249 "-s enable rudimentary parsing for switches after programfile",
2250 "-S look for programfile using PATH environment variable",
2251 "-T enable tainting checks",
2252 "-t enable tainting warnings",
2253 "-u dump core after parsing program",
2254 "-U allow unsafe operations",
2255 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2256 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2257 "-w enable many useful warnings (RECOMMENDED)",
2258 "-W enable all warnings",
2259 "-X disable all warnings",
2260 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2264 char **p = usage_msg;
2266 PerlIO_printf(PerlIO_stdout(),
2267 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2270 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2273 /* convert a string of -D options (or digits) into an int.
2274 * sets *s to point to the char after the options */
2278 Perl_get_debug_opts(pTHX_ char **s)
2282 /* if adding extra options, remember to update DEBUG_MASK */
2283 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2285 for (; isALNUM(**s); (*s)++) {
2286 char *d = strchr(debopts,**s);
2288 i |= 1 << (d - debopts);
2289 else if (ckWARN_d(WARN_DEBUGGING))
2290 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2291 "invalid option -D%c\n", **s);
2296 for (; isALNUM(**s); (*s)++) ;
2299 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2300 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2301 "-Dp not implemented on this platform\n");
2307 /* This routine handles any switches that can be given during run */
2310 Perl_moreswitches(pTHX_ char *s)
2320 SvREFCNT_dec(PL_rs);
2321 if (s[1] == 'x' && s[2]) {
2325 for (s += 2, e = s; *e; e++);
2327 flags = PERL_SCAN_SILENT_ILLDIGIT;
2328 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2329 if (s + numlen < e) {
2330 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2334 PL_rs = newSVpvn("", 0);
2335 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2336 tmps = (U8*)SvPVX(PL_rs);
2337 uvchr_to_utf8(tmps, rschar);
2338 SvCUR_set(PL_rs, UNISKIP(rschar));
2343 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2344 if (rschar & ~((U8)~0))
2345 PL_rs = &PL_sv_undef;
2346 else if (!rschar && numlen >= 2)
2347 PL_rs = newSVpvn("", 0);
2349 char ch = (char)rschar;
2350 PL_rs = newSVpvn(&ch, 1);
2357 PL_unicode = parse_unicode_opts(&s);
2362 while (*s && !isSPACE(*s)) ++s;
2364 PL_splitstr = savepv(PL_splitstr);
2377 /* The following permits -d:Mod to accepts arguments following an =
2378 in the fashion that -MSome::Mod does. */
2379 if (*s == ':' || *s == '=') {
2382 sv = newSVpv("use Devel::", 0);
2384 /* We now allow -d:Module=Foo,Bar */
2385 while(isALNUM(*s) || *s==':') ++s;
2387 sv_catpv(sv, start);
2389 sv_catpvn(sv, start, s-start);
2390 sv_catpv(sv, " split(/,/,q{");
2395 my_setenv("PERL5DB", SvPV(sv, PL_na));
2398 PL_perldb = PERLDB_ALL;
2407 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2408 #else /* !DEBUGGING */
2409 if (ckWARN_d(WARN_DEBUGGING))
2410 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2411 "Recompile perl with -DDEBUGGING to use -D switch\n");
2412 for (s++; isALNUM(*s); s++) ;
2418 usage(PL_origargv[0]);
2422 Safefree(PL_inplace);
2423 #if defined(__CYGWIN__) /* do backup extension automagically */
2424 if (*(s+1) == '\0') {
2425 PL_inplace = savepv(".bak");
2428 #endif /* __CYGWIN__ */
2429 PL_inplace = savepv(s+1);
2431 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2434 if (*s == '-') /* Additional switches on #! line. */
2438 case 'I': /* -I handled both here and in parse_body() */
2441 while (*s && isSPACE(*s))
2446 /* ignore trailing spaces (possibly followed by other switches) */
2448 for (e = p; *e && !isSPACE(*e); e++) ;
2452 } while (*p && *p != '-');
2453 e = savepvn(s, e-s);
2454 incpush(e, TRUE, TRUE, FALSE);
2461 Perl_croak(aTHX_ "No directory specified for -I");
2467 SvREFCNT_dec(PL_ors_sv);
2472 PL_ors_sv = newSVpvn("\n",1);
2473 numlen = 3 + (*s == '0');
2474 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2478 if (RsPARA(PL_rs)) {
2479 PL_ors_sv = newSVpvn("\n\n",2);
2482 PL_ors_sv = newSVsv(PL_rs);
2489 PL_preambleav = newAV();
2491 SV *sv = newSVpvn("use assertions::activate split(/,/,q{",37);
2495 av_push(PL_preambleav, sv);
2498 av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
2501 forbid_setid("-M"); /* XXX ? */
2504 forbid_setid("-m"); /* XXX ? */
2509 /* -M-foo == 'no foo' */
2510 if (*s == '-') { use = "no "; ++s; }
2511 sv = newSVpv(use,0);
2513 /* We allow -M'Module qw(Foo Bar)' */
2514 while(isALNUM(*s) || *s==':') ++s;
2516 sv_catpv(sv, start);
2517 if (*(start-1) == 'm') {
2519 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2520 sv_catpv( sv, " ()");
2524 Perl_croak(aTHX_ "Module name required with -%c option",
2526 sv_catpvn(sv, start, s-start);
2527 sv_catpv(sv, " split(/,/,q{");
2533 PL_preambleav = newAV();
2534 av_push(PL_preambleav, sv);
2537 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2549 PL_doswitches = TRUE;
2563 #ifdef MACOS_TRADITIONAL
2564 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2566 PL_do_undump = TRUE;
2575 PerlIO_printf(PerlIO_stdout(),
2576 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2577 PL_patchlevel, ARCHNAME));
2579 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2580 PerlIO_printf(PerlIO_stdout(),
2581 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2582 PerlIO_printf(PerlIO_stdout(),
2583 Perl_form(aTHX_ " built under %s at %s %s\n",
2584 OSNAME, __DATE__, __TIME__));
2585 PerlIO_printf(PerlIO_stdout(),
2586 Perl_form(aTHX_ " OS Specific Release: %s\n",
2590 #if defined(LOCAL_PATCH_COUNT)
2591 if (LOCAL_PATCH_COUNT > 0)
2592 PerlIO_printf(PerlIO_stdout(),
2593 "\n(with %d registered patch%s, "
2594 "see perl -V for more detail)",
2595 (int)LOCAL_PATCH_COUNT,
2596 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2599 PerlIO_printf(PerlIO_stdout(),
2600 "\n\nCopyright 1987-2003, Larry Wall\n");
2601 #ifdef MACOS_TRADITIONAL
2602 PerlIO_printf(PerlIO_stdout(),
2603 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2604 "maintained by Chris Nandor\n");
2607 PerlIO_printf(PerlIO_stdout(),
2608 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2611 PerlIO_printf(PerlIO_stdout(),
2612 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2613 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2616 PerlIO_printf(PerlIO_stdout(),
2617 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2618 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2621 PerlIO_printf(PerlIO_stdout(),
2622 "atariST series port, ++jrb bammi@cadence.com\n");
2625 PerlIO_printf(PerlIO_stdout(),
2626 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2629 PerlIO_printf(PerlIO_stdout(),
2630 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2633 PerlIO_printf(PerlIO_stdout(),
2634 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2637 PerlIO_printf(PerlIO_stdout(),
2638 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2641 PerlIO_printf(PerlIO_stdout(),
2642 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2645 PerlIO_printf(PerlIO_stdout(),
2646 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2649 PerlIO_printf(PerlIO_stdout(),
2650 "MiNT port by Guido Flohr, 1997-1999\n");
2653 PerlIO_printf(PerlIO_stdout(),
2654 "EPOC port by Olaf Flebbe, 1999-2002\n");
2657 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2658 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2661 #ifdef BINARY_BUILD_NOTICE
2662 BINARY_BUILD_NOTICE;
2664 PerlIO_printf(PerlIO_stdout(),
2666 Perl may be copied only under the terms of either the Artistic License or the\n\
2667 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2668 Complete documentation for Perl, including FAQ lists, should be found on\n\
2669 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2670 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2673 if (! (PL_dowarn & G_WARN_ALL_MASK))
2674 PL_dowarn |= G_WARN_ON;
2678 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2679 if (!specialWARN(PL_compiling.cop_warnings))
2680 SvREFCNT_dec(PL_compiling.cop_warnings);
2681 PL_compiling.cop_warnings = pWARN_ALL ;
2685 PL_dowarn = G_WARN_ALL_OFF;
2686 if (!specialWARN(PL_compiling.cop_warnings))
2687 SvREFCNT_dec(PL_compiling.cop_warnings);
2688 PL_compiling.cop_warnings = pWARN_NONE ;
2693 if (s[1] == '-') /* Additional switches on #! line. */
2698 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2704 #ifdef ALTERNATE_SHEBANG
2705 case 'S': /* OS/2 needs -S on "extproc" line. */
2713 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2718 /* compliments of Tom Christiansen */
2720 /* unexec() can be found in the Gnu emacs distribution */
2721 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2724 Perl_my_unexec(pTHX)
2732 prog = newSVpv(BIN_EXP, 0);
2733 sv_catpv(prog, "/perl");
2734 file = newSVpv(PL_origfilename, 0);
2735 sv_catpv(file, ".perldump");
2737 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2738 /* unexec prints msg to stderr in case of failure */
2739 PerlProc_exit(status);
2742 # include <lib$routines.h>
2743 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2745 ABORT(); /* for use with undump */
2750 /* initialize curinterp */
2756 # define PERLVAR(var,type)
2757 # define PERLVARA(var,n,type)
2758 # if defined(PERL_IMPLICIT_CONTEXT)
2759 # if defined(USE_5005THREADS)
2760 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2761 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2762 # else /* !USE_5005THREADS */
2763 # define PERLVARI(var,type,init) aTHX->var = init;
2764 # define PERLVARIC(var,type,init) aTHX->var = init;
2765 # endif /* USE_5005THREADS */
2767 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2768 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2770 # include "intrpvar.h"
2771 # ifndef USE_5005THREADS
2772 # include "thrdvar.h"
2779 # define PERLVAR(var,type)
2780 # define PERLVARA(var,n,type)
2781 # define PERLVARI(var,type,init) PL_##var = init;
2782 # define PERLVARIC(var,type,init) PL_##var = init;
2783 # include "intrpvar.h"
2784 # ifndef USE_5005THREADS
2785 # include "thrdvar.h"
2796 S_init_main_stash(pTHX)
2800 PL_curstash = PL_defstash = newHV();
2801 PL_curstname = newSVpvn("main",4);
2802 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2803 SvREFCNT_dec(GvHV(gv));
2804 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2806 HvNAME(PL_defstash) = savepv("main");
2807 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2808 GvMULTI_on(PL_incgv);
2809 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2810 GvMULTI_on(PL_hintgv);
2811 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2812 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2813 GvMULTI_on(PL_errgv);
2814 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2815 GvMULTI_on(PL_replgv);
2816 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2817 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2818 sv_setpvn(ERRSV, "", 0);
2819 PL_curstash = PL_defstash;
2820 CopSTASH_set(&PL_compiling, PL_defstash);
2821 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2822 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2823 /* We must init $/ before switches are processed. */
2824 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2828 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2832 char *cpp_discard_flag;
2838 PL_origfilename = savepv("-e");
2841 /* if find_script() returns, it returns a malloc()-ed value */
2842 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2844 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2845 char *s = scriptname + 8;
2846 *fdscript = atoi(s);
2850 scriptname = savepv(s + 1);
2851 Safefree(PL_origfilename);
2852 PL_origfilename = scriptname;
2857 CopFILE_free(PL_curcop);
2858 CopFILE_set(PL_curcop, PL_origfilename);
2859 if (strEQ(PL_origfilename,"-"))
2861 if (*fdscript >= 0) {
2862 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2863 # if defined(HAS_FCNTL) && defined(F_SETFD)
2865 /* ensure close-on-exec */
2866 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2869 else if (PL_preprocess) {
2870 char *cpp_cfg = CPPSTDIN;
2871 SV *cpp = newSVpvn("",0);
2872 SV *cmd = NEWSV(0,0);
2874 if (strEQ(cpp_cfg, "cppstdin"))
2875 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2876 sv_catpv(cpp, cpp_cfg);
2879 sv_catpvn(sv, "-I", 2);
2880 sv_catpv(sv,PRIVLIB_EXP);
2883 DEBUG_P(PerlIO_printf(Perl_debug_log,
2884 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2885 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2887 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2894 cpp_discard_flag = "";
2896 cpp_discard_flag = "-C";
2900 perl = os2_execname(aTHX);
2902 perl = PL_origargv[0];
2906 /* This strips off Perl comments which might interfere with
2907 the C pre-processor, including #!. #line directives are
2908 deliberately stripped to avoid confusion with Perl's version
2909 of #line. FWP played some golf with it so it will fit
2910 into VMS's 255 character buffer.
2913 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2915 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2917 Perl_sv_setpvf(aTHX_ cmd, "\
2918 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2919 perl, quote, code, quote, scriptname, cpp,
2920 cpp_discard_flag, sv, CPPMINUS);
2922 PL_doextract = FALSE;
2923 # ifdef IAMSUID /* actually, this is caught earlier */
2924 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2926 (void)seteuid(PL_uid); /* musn't stay setuid root */
2928 # ifdef HAS_SETREUID
2929 (void)setreuid((Uid_t)-1, PL_uid);
2931 # ifdef HAS_SETRESUID
2932 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2934 PerlProc_setuid(PL_uid);
2938 if (PerlProc_geteuid() != PL_uid)
2939 Perl_croak(aTHX_ "Can't do seteuid!\n");
2941 # endif /* IAMSUID */
2943 DEBUG_P(PerlIO_printf(Perl_debug_log,
2944 "PL_preprocess: cmd=\"%s\"\n",
2947 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2951 else if (!*scriptname) {
2952 forbid_setid("program input from stdin");
2953 PL_rsfp = PerlIO_stdin();
2956 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2957 # if defined(HAS_FCNTL) && defined(F_SETFD)
2959 /* ensure close-on-exec */
2960 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2965 # ifndef IAMSUID /* in case script is not readable before setuid */
2967 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2968 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2972 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2973 BIN_EXP, (int)PERL_REVISION,
2975 (int)PERL_SUBVERSION), PL_origargv);
2977 Perl_croak(aTHX_ "Can't do setuid\n");
2983 Perl_croak(aTHX_ "Can't open perl script: %s\n",
2986 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2987 CopFILE(PL_curcop), Strerror(errno));
2993 * I_SYSSTATVFS HAS_FSTATVFS
2995 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
2996 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
2997 * here so that metaconfig picks them up. */
3001 S_fd_on_nosuid_fs(pTHX_ int fd)
3003 int check_okay = 0; /* able to do all the required sys/libcalls */
3004 int on_nosuid = 0; /* the fd is on a nosuid fs */
3006 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3007 * fstatvfs() is UNIX98.
3008 * fstatfs() is 4.3 BSD.
3009 * ustat()+getmnt() is pre-4.3 BSD.
3010 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3011 * an irrelevant filesystem while trying to reach the right one.
3014 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3016 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3017 defined(HAS_FSTATVFS)
3018 # define FD_ON_NOSUID_CHECK_OKAY
3019 struct statvfs stfs;
3021 check_okay = fstatvfs(fd, &stfs) == 0;
3022 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3023 # endif /* fstatvfs */
3025 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3026 defined(PERL_MOUNT_NOSUID) && \
3027 defined(HAS_FSTATFS) && \
3028 defined(HAS_STRUCT_STATFS) && \
3029 defined(HAS_STRUCT_STATFS_F_FLAGS)
3030 # define FD_ON_NOSUID_CHECK_OKAY
3033 check_okay = fstatfs(fd, &stfs) == 0;
3034 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3035 # endif /* fstatfs */
3037 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3038 defined(PERL_MOUNT_NOSUID) && \
3039 defined(HAS_FSTAT) && \
3040 defined(HAS_USTAT) && \
3041 defined(HAS_GETMNT) && \
3042 defined(HAS_STRUCT_FS_DATA) && \
3044 # define FD_ON_NOSUID_CHECK_OKAY
3047 if (fstat(fd, &fdst) == 0) {
3049 if (ustat(fdst.st_dev, &us) == 0) {
3051 /* NOSTAT_ONE here because we're not examining fields which
3052 * vary between that case and STAT_ONE. */
3053 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3054 size_t cmplen = sizeof(us.f_fname);
3055 if (sizeof(fsd.fd_req.path) < cmplen)
3056 cmplen = sizeof(fsd.fd_req.path);
3057 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3058 fdst.st_dev == fsd.fd_req.dev) {
3060 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3066 # endif /* fstat+ustat+getmnt */
3068 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3069 defined(HAS_GETMNTENT) && \
3070 defined(HAS_HASMNTOPT) && \
3071 defined(MNTOPT_NOSUID)
3072 # define FD_ON_NOSUID_CHECK_OKAY
3073 FILE *mtab = fopen("/etc/mtab", "r");
3074 struct mntent *entry;
3077 if (mtab && (fstat(fd, &stb) == 0)) {
3078 while (entry = getmntent(mtab)) {
3079 if (stat(entry->mnt_dir, &fsb) == 0
3080 && fsb.st_dev == stb.st_dev)
3082 /* found the filesystem */
3084 if (hasmntopt(entry, MNTOPT_NOSUID))
3087 } /* A single fs may well fail its stat(). */
3092 # endif /* getmntent+hasmntopt */
3095 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3098 #endif /* IAMSUID */
3101 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3107 /* do we need to emulate setuid on scripts? */
3109 /* This code is for those BSD systems that have setuid #! scripts disabled
3110 * in the kernel because of a security problem. Merely defining DOSUID
3111 * in perl will not fix that problem, but if you have disabled setuid
3112 * scripts in the kernel, this will attempt to emulate setuid and setgid
3113 * on scripts that have those now-otherwise-useless bits set. The setuid
3114 * root version must be called suidperl or sperlN.NNN. If regular perl
3115 * discovers that it has opened a setuid script, it calls suidperl with
3116 * the same argv that it had. If suidperl finds that the script it has
3117 * just opened is NOT setuid root, it sets the effective uid back to the
3118 * uid. We don't just make perl setuid root because that loses the
3119 * effective uid we had before invoking perl, if it was different from the
3122 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3123 * be defined in suidperl only. suidperl must be setuid root. The
3124 * Configure script will set this up for you if you want it.
3130 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3131 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3132 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3137 #ifndef HAS_SETREUID
3138 /* On this access check to make sure the directories are readable,
3139 * there is actually a small window that the user could use to make
3140 * filename point to an accessible directory. So there is a faint
3141 * chance that someone could execute a setuid script down in a
3142 * non-accessible directory. I don't know what to do about that.
3143 * But I don't think it's too important. The manual lies when
3144 * it says access() is useful in setuid programs.
3146 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
3147 Perl_croak(aTHX_ "Permission denied");
3149 /* If we can swap euid and uid, then we can determine access rights
3150 * with a simple stat of the file, and then compare device and
3151 * inode to make sure we did stat() on the same file we opened.
3152 * Then we just have to make sure he or she can execute it.
3159 setreuid(PL_euid,PL_uid) < 0
3162 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
3165 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
3166 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
3167 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
3168 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
3169 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3170 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
3171 Perl_croak(aTHX_ "Permission denied");
3173 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3174 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3175 (void)PerlIO_close(PL_rsfp);
3176 Perl_croak(aTHX_ "Permission denied\n");
3180 setreuid(PL_uid,PL_euid) < 0
3182 # if defined(HAS_SETRESUID)
3183 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3186 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3187 Perl_croak(aTHX_ "Can't reswap uid and euid");
3188 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3189 Perl_croak(aTHX_ "Permission denied\n");
3191 #endif /* HAS_SETREUID */
3192 #endif /* IAMSUID */
3194 if (!S_ISREG(PL_statbuf.st_mode))
3195 Perl_croak(aTHX_ "Permission denied");
3196 if (PL_statbuf.st_mode & S_IWOTH)
3197 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3198 PL_doswitches = FALSE; /* -s is insecure in suid */
3199 CopLINE_inc(PL_curcop);
3200 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3201 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3202 Perl_croak(aTHX_ "No #! line");
3203 s = SvPV(PL_linestr,n_a)+2;
3205 while (!isSPACE(*s)) s++;
3206 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3207 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3208 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3209 Perl_croak(aTHX_ "Not a perl script");
3210 while (*s == ' ' || *s == '\t') s++;
3212 * #! arg must be what we saw above. They can invoke it by
3213 * mentioning suidperl explicitly, but they may not add any strange
3214 * arguments beyond what #! says if they do invoke suidperl that way.
3216 len = strlen(validarg);
3217 if (strEQ(validarg," PHOOEY ") ||
3218 strnNE(s,validarg,len) || !isSPACE(s[len]))
3219 Perl_croak(aTHX_ "Args must match #! line");
3222 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3223 PL_euid == PL_statbuf.st_uid)
3225 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3226 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3227 #endif /* IAMSUID */
3229 if (PL_euid) { /* oops, we're not the setuid root perl */
3230 (void)PerlIO_close(PL_rsfp);
3234 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3235 (int)PERL_REVISION, (int)PERL_VERSION,
3236 (int)PERL_SUBVERSION), PL_origargv);
3239 Perl_croak(aTHX_ "Can't do setuid\n");
3242 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3244 (void)setegid(PL_statbuf.st_gid);
3247 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3249 #ifdef HAS_SETRESGID
3250 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3252 PerlProc_setgid(PL_statbuf.st_gid);
3256 if (PerlProc_getegid() != PL_statbuf.st_gid)
3257 Perl_croak(aTHX_ "Can't do setegid!\n");
3259 if (PL_statbuf.st_mode & S_ISUID) {
3260 if (PL_statbuf.st_uid != PL_euid)
3262 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3265 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3267 #ifdef HAS_SETRESUID
3268 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3270 PerlProc_setuid(PL_statbuf.st_uid);
3274 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3275 Perl_croak(aTHX_ "Can't do seteuid!\n");
3277 else if (PL_uid) { /* oops, mustn't run as root */
3279 (void)seteuid((Uid_t)PL_uid);
3282 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3284 #ifdef HAS_SETRESUID
3285 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3287 PerlProc_setuid((Uid_t)PL_uid);
3291 if (PerlProc_geteuid() != PL_uid)
3292 Perl_croak(aTHX_ "Can't do seteuid!\n");
3295 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3296 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3299 else if (PL_preprocess)
3300 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3301 else if (fdscript >= 0)
3302 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3304 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
3306 /* We absolutely must clear out any saved ids here, so we */
3307 /* exec the real perl, substituting fd script for scriptname. */
3308 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3309 PerlIO_rewind(PL_rsfp);
3310 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3311 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3312 if (!PL_origargv[which])
3313 Perl_croak(aTHX_ "Permission denied");
3314 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3315 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3316 #if defined(HAS_FCNTL) && defined(F_SETFD)
3317 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3320 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3321 (int)PERL_REVISION, (int)PERL_VERSION,
3322 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3324 Perl_croak(aTHX_ "Can't do setuid\n");
3325 #endif /* IAMSUID */
3327 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3328 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3329 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3330 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3332 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3335 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3336 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3337 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3338 /* not set-id, must be wrapped */
3344 S_find_beginning(pTHX)
3346 register char *s, *s2;
3347 #ifdef MACOS_TRADITIONAL
3351 /* skip forward in input to the real script? */
3354 #ifdef MACOS_TRADITIONAL
3355 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3357 while (PL_doextract || gMacPerl_AlwaysExtract) {
3358 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3359 if (!gMacPerl_AlwaysExtract)
3360 Perl_croak(aTHX_ "No Perl script found in input\n");
3362 if (PL_doextract) /* require explicit override ? */
3363 if (!OverrideExtract(PL_origfilename))
3364 Perl_croak(aTHX_ "User aborted script\n");
3366 PL_doextract = FALSE;
3368 /* Pater peccavi, file does not have #! */
3369 PerlIO_rewind(PL_rsfp);
3374 while (PL_doextract) {
3375 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3376 Perl_croak(aTHX_ "No Perl script found in input\n");
3379 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3380 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3381 PL_doextract = FALSE;
3382 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3384 while (*s == ' ' || *s == '\t') s++;
3386 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3387 if (strnEQ(s2-4,"perl",4))
3389 while ((s = moreswitches(s)))
3392 #ifdef MACOS_TRADITIONAL
3393 /* We are always searching for the #!perl line in MacPerl,
3394 * so if we find it, still keep the line count correct
3395 * by counting lines we already skipped over
3397 for (; maclines > 0 ; maclines--)
3398 PerlIO_ungetc(PL_rsfp, '\n');
3402 /* gMacPerl_AlwaysExtract is false in MPW tool */
3403 } else if (gMacPerl_AlwaysExtract) {
3414 PL_uid = PerlProc_getuid();
3415 PL_euid = PerlProc_geteuid();
3416 PL_gid = PerlProc_getgid();
3417 PL_egid = PerlProc_getegid();
3419 PL_uid |= PL_gid << 16;
3420 PL_euid |= PL_egid << 16;
3422 /* Should not happen: */
3423 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3424 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3427 /* This is used very early in the lifetime of the program,
3428 * before even the options are parsed, so PL_tainting has
3429 * not been initialized properly. */
3431 Perl_doing_taint(int argc, char *argv[], char *envp[])
3433 #ifndef PERL_IMPLICIT_SYS
3434 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3435 * before we have an interpreter-- and the whole point of this
3436 * function is to be called at such an early stage. If you are on
3437 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3438 * "tainted because running with altered effective ids', you'll
3439 * have to add your own checks somewhere in here. The two most
3440 * known samples of 'implicitness' are Win32 and NetWare, neither
3441 * of which has much of concept of 'uids'. */
3442 int uid = PerlProc_getuid();
3443 int euid = PerlProc_geteuid();
3444 int gid = PerlProc_getgid();
3445 int egid = PerlProc_getegid();
3451 if (uid && (euid != uid || egid != gid))
3453 #endif /* !PERL_IMPLICIT_SYS */
3454 /* This is a really primitive check; environment gets ignored only
3455 * if -T are the first chars together; otherwise one gets
3456 * "Too late" message. */
3457 if ( argc > 1 && argv[1][0] == '-'
3458 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3464 S_forbid_setid(pTHX_ char *s)
3466 if (PL_euid != PL_uid)
3467 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3468 if (PL_egid != PL_gid)
3469 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3473 Perl_init_debugger(pTHX)
3475 HV *ostash = PL_curstash;
3477 PL_curstash = PL_debstash;
3478 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3479 AvREAL_off(PL_dbargs);
3480 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3481 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3482 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3483 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3484 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3485 sv_setiv(PL_DBsingle, 0);
3486 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3487 sv_setiv(PL_DBtrace, 0);
3488 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3489 sv_setiv(PL_DBsignal, 0);
3490 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3491 sv_setiv(PL_DBassertion, 0);
3492 PL_curstash = ostash;
3495 #ifndef STRESS_REALLOC
3496 #define REASONABLE(size) (size)
3498 #define REASONABLE(size) (1) /* unreasonable */
3502 Perl_init_stacks(pTHX)
3504 /* start with 128-item stack and 8K cxstack */
3505 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3506 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3507 PL_curstackinfo->si_type = PERLSI_MAIN;
3508 PL_curstack = PL_curstackinfo->si_stack;
3509 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3511 PL_stack_base = AvARRAY(PL_curstack);
3512 PL_stack_sp = PL_stack_base;
3513 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3515 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3518 PL_tmps_max = REASONABLE(128);
3520 New(54,PL_markstack,REASONABLE(32),I32);
3521 PL_markstack_ptr = PL_markstack;
3522 PL_markstack_max = PL_markstack + REASONABLE(32);
3526 New(54,PL_scopestack,REASONABLE(32),I32);
3527 PL_scopestack_ix = 0;
3528 PL_scopestack_max = REASONABLE(32);
3530 New(54,PL_savestack,REASONABLE(128),ANY);
3531 PL_savestack_ix = 0;
3532 PL_savestack_max = REASONABLE(128);
3534 New(54,PL_retstack,REASONABLE(16),OP*);
3536 PL_retstack_max = REASONABLE(16);
3544 while (PL_curstackinfo->si_next)
3545 PL_curstackinfo = PL_curstackinfo->si_next;
3546 while (PL_curstackinfo) {
3547 PERL_SI *p = PL_curstackinfo->si_prev;
3548 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3549 Safefree(PL_curstackinfo->si_cxstack);
3550 Safefree(PL_curstackinfo);
3551 PL_curstackinfo = p;
3553 Safefree(PL_tmps_stack);
3554 Safefree(PL_markstack);
3555 Safefree(PL_scopestack);
3556 Safefree(PL_savestack);
3557 Safefree(PL_retstack);
3566 lex_start(PL_linestr);
3568 PL_subname = newSVpvn("main",4);
3572 S_init_predump_symbols(pTHX)
3577 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3578 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3579 GvMULTI_on(PL_stdingv);
3580 io = GvIOp(PL_stdingv);
3581 IoTYPE(io) = IoTYPE_RDONLY;
3582 IoIFP(io) = PerlIO_stdin();
3583 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3585 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3587 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3590 IoTYPE(io) = IoTYPE_WRONLY;
3591 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3593 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3595 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3597 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3598 GvMULTI_on(PL_stderrgv);
3599 io = GvIOp(PL_stderrgv);
3600 IoTYPE(io) = IoTYPE_WRONLY;
3601 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3602 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3604 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3606 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3609 Safefree(PL_osname);
3610 PL_osname = savepv(OSNAME);
3614 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3617 argc--,argv++; /* skip name of script */
3618 if (PL_doswitches) {
3619 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3622 if (argv[0][1] == '-' && !argv[0][2]) {
3626 if ((s = strchr(argv[0], '='))) {
3628 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3631 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3634 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3635 GvMULTI_on(PL_argvgv);
3636 (void)gv_AVadd(PL_argvgv);
3637 av_clear(GvAVn(PL_argvgv));
3638 for (; argc > 0; argc--,argv++) {
3639 SV *sv = newSVpv(argv[0],0);
3640 av_push(GvAVn(PL_argvgv),sv);
3641 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3642 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3645 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3646 (void)sv_utf8_decode(sv);
3651 #ifdef HAS_PROCSELFEXE
3652 /* This is a function so that we don't hold on to MAXPATHLEN
3653 bytes of stack longer than necessary
3656 S_procself_val(pTHX_ SV *sv, char *arg0)
3658 char buf[MAXPATHLEN];
3659 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3661 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3662 includes a spurious NUL which will cause $^X to fail in system
3663 or backticks (this will prevent extensions from being built and
3664 many tests from working). readlink is not meant to add a NUL.
3665 Normal readlink works fine.
3667 if (len > 0 && buf[len-1] == '\0') {
3671 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3672 returning the text "unknown" from the readlink rather than the path
3673 to the executable (or returning an error from the readlink). Any valid
3674 path has a '/' in it somewhere, so use that to validate the result.
3675 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3677 if (len > 0 && memchr(buf, '/', len)) {
3678 sv_setpvn(sv,buf,len);
3684 #endif /* HAS_PROCSELFEXE */
3687 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3693 PL_toptarget = NEWSV(0,0);
3694 sv_upgrade(PL_toptarget, SVt_PVFM);
3695 sv_setpvn(PL_toptarget, "", 0);
3696 PL_bodytarget = NEWSV(0,0);
3697 sv_upgrade(PL_bodytarget, SVt_PVFM);
3698 sv_setpvn(PL_bodytarget, "", 0);
3699 PL_formtarget = PL_bodytarget;
3703 init_argv_symbols(argc,argv);
3705 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3706 #ifdef MACOS_TRADITIONAL
3707 /* $0 is not majick on a Mac */
3708 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3710 sv_setpv(GvSV(tmpgv),PL_origfilename);
3711 magicname("0", "0", 1);
3714 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3715 #ifdef HAS_PROCSELFEXE
3716 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3719 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3721 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3725 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3727 GvMULTI_on(PL_envgv);
3728 hv = GvHVn(PL_envgv);
3729 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3730 #ifdef USE_ENVIRON_ARRAY
3731 /* Note that if the supplied env parameter is actually a copy
3732 of the global environ then it may now point to free'd memory
3733 if the environment has been modified since. To avoid this
3734 problem we treat env==NULL as meaning 'use the default'
3739 # ifdef USE_ITHREADS
3740 && PL_curinterp == aTHX
3744 environ[0] = Nullch;
3747 for (; *env; env++) {
3748 if (!(s = strchr(*env,'=')))
3755 sv = newSVpv(s+1, 0);
3756 (void)hv_store(hv, *env, s - *env, sv, 0);
3760 #endif /* USE_ENVIRON_ARRAY */
3763 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3764 SvREADONLY_off(GvSV(tmpgv));
3765 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3766 SvREADONLY_on(GvSV(tmpgv));
3768 #ifdef THREADS_HAVE_PIDS
3769 PL_ppid = (IV)getppid();
3772 /* touch @F array to prevent spurious warnings 20020415 MJD */
3774 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3776 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3777 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3778 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3782 S_init_perllib(pTHX)
3787 s = PerlEnv_getenv("PERL5LIB");
3789 incpush(s, TRUE, TRUE, TRUE);
3791 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3793 /* Treat PERL5?LIB as a possible search list logical name -- the
3794 * "natural" VMS idiom for a Unix path string. We allow each
3795 * element to be a set of |-separated directories for compatibility.
3799 if (my_trnlnm("PERL5LIB",buf,0))
3800 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3802 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3806 /* Use the ~-expanded versions of APPLLIB (undocumented),
3807 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3810 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3814 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3816 #ifdef MACOS_TRADITIONAL
3819 SV * privdir = NEWSV(55, 0);
3820 char * macperl = PerlEnv_getenv("MACPERL");
3825 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3826 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3827 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3828 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3829 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3830 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3832 SvREFCNT_dec(privdir);
3835 incpush(":", FALSE, FALSE, TRUE);
3838 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3841 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3843 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3847 /* sitearch is always relative to sitelib on Windows for
3848 * DLL-based path intuition to work correctly */
3849 # if !defined(WIN32)
3850 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3856 /* this picks up sitearch as well */
3857 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3859 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3863 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3864 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3867 #ifdef PERL_VENDORARCH_EXP
3868 /* vendorarch is always relative to vendorlib on Windows for
3869 * DLL-based path intuition to work correctly */
3870 # if !defined(WIN32)
3871 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3875 #ifdef PERL_VENDORLIB_EXP
3877 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3879 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3883 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3884 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3887 #ifdef PERL_OTHERLIBDIRS
3888 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3892 incpush(".", FALSE, FALSE, TRUE);
3893 #endif /* MACOS_TRADITIONAL */
3896 #if defined(DOSISH) || defined(EPOC)
3897 # define PERLLIB_SEP ';'
3900 # define PERLLIB_SEP '|'
3902 # if defined(MACOS_TRADITIONAL)
3903 # define PERLLIB_SEP ','
3905 # define PERLLIB_SEP ':'
3909 #ifndef PERLLIB_MANGLE
3910 # define PERLLIB_MANGLE(s,n) (s)
3914 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3916 SV *subdir = Nullsv;
3921 if (addsubdirs || addoldvers) {
3922 subdir = sv_newmortal();
3925 /* Break at all separators */
3927 SV *libdir = NEWSV(55,0);
3930 /* skip any consecutive separators */
3932 while ( *p == PERLLIB_SEP ) {
3933 /* Uncomment the next line for PATH semantics */
3934 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3939 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3940 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3945 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3946 p = Nullch; /* break out */
3948 #ifdef MACOS_TRADITIONAL
3949 if (!strchr(SvPVX(libdir), ':')) {
3952 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3954 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3955 sv_catpv(libdir, ":");
3959 * BEFORE pushing libdir onto @INC we may first push version- and
3960 * archname-specific sub-directories.
3962 if (addsubdirs || addoldvers) {
3963 #ifdef PERL_INC_VERSION_LIST
3964 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3965 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3966 const char **incver;
3973 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3975 while (unix[len-1] == '/') len--; /* Cosmetic */
3976 sv_usepvn(libdir,unix,len);
3979 PerlIO_printf(Perl_error_log,
3980 "Failed to unixify @INC element \"%s\"\n",
3984 #ifdef MACOS_TRADITIONAL
3985 #define PERL_AV_SUFFIX_FMT ""
3986 #define PERL_ARCH_FMT "%s:"
3987 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
3989 #define PERL_AV_SUFFIX_FMT "/"
3990 #define PERL_ARCH_FMT "/%s"
3991 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
3993 /* .../version/archname if -d .../version/archname */
3994 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
3996 (int)PERL_REVISION, (int)PERL_VERSION,
3997 (int)PERL_SUBVERSION, ARCHNAME);
3998 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3999 S_ISDIR(tmpstatbuf.st_mode))
4000 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4002 /* .../version if -d .../version */
4003 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4004 (int)PERL_REVISION, (int)PERL_VERSION,
4005 (int)PERL_SUBVERSION);
4006 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4007 S_ISDIR(tmpstatbuf.st_mode))
4008 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4010 /* .../archname if -d .../archname */
4011 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4012 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4013 S_ISDIR(tmpstatbuf.st_mode))
4014 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4017 #ifdef PERL_INC_VERSION_LIST
4019 for (incver = incverlist; *incver; incver++) {
4020 /* .../xxx if -d .../xxx */
4021 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4022 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4023 S_ISDIR(tmpstatbuf.st_mode))
4024 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4030 /* finally push this lib directory on the end of @INC */
4031 av_push(GvAVn(PL_incgv), libdir);
4035 #ifdef USE_5005THREADS
4036 STATIC struct perl_thread *
4037 S_init_main_thread(pTHX)
4039 #if !defined(PERL_IMPLICIT_CONTEXT)
4040 struct perl_thread *thr;
4044 Newz(53, thr, 1, struct perl_thread);
4045 PL_curcop = &PL_compiling;
4046 thr->interp = PERL_GET_INTERP;
4047 thr->cvcache = newHV();
4048 thr->threadsv = newAV();
4049 /* thr->threadsvp is set when find_threadsv is called */
4050 thr->specific = newAV();
4051 thr->flags = THRf_R_JOINABLE;
4052 MUTEX_INIT(&thr->mutex);
4053 /* Handcraft thrsv similarly to mess_sv */
4054 New(53, PL_thrsv, 1, SV);
4055 Newz(53, xpv, 1, XPV);
4056 SvFLAGS(PL_thrsv) = SVt_PV;
4057 SvANY(PL_thrsv) = (void*)xpv;
4058 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4059 SvPVX(PL_thrsv) = (char*)thr;
4060 SvCUR_set(PL_thrsv, sizeof(thr));
4061 SvLEN_set(PL_thrsv, sizeof(thr));
4062 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4063 thr->oursv = PL_thrsv;
4064 PL_chopset = " \n-";
4067 MUTEX_LOCK(&PL_threads_mutex);
4073 MUTEX_UNLOCK(&PL_threads_mutex);
4075 #ifdef HAVE_THREAD_INTERN
4076 Perl_init_thread_intern(thr);
4079 #ifdef SET_THREAD_SELF
4080 SET_THREAD_SELF(thr);
4082 thr->self = pthread_self();
4083 #endif /* SET_THREAD_SELF */
4087 * These must come after the thread self setting
4088 * because sv_setpvn does SvTAINT and the taint
4089 * fields thread selfness being set.
4091 PL_toptarget = NEWSV(0,0);
4092 sv_upgrade(PL_toptarget, SVt_PVFM);
4093 sv_setpvn(PL_toptarget, "", 0);
4094 PL_bodytarget = NEWSV(0,0);
4095 sv_upgrade(PL_bodytarget, SVt_PVFM);
4096 sv_setpvn(PL_bodytarget, "", 0);
4097 PL_formtarget = PL_bodytarget;
4098 thr->errsv = newSVpvn("", 0);
4099 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4102 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4103 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4104 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4105 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4106 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4107 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4109 PL_reginterp_cnt = 0;
4113 #endif /* USE_5005THREADS */
4116 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4119 line_t oldline = CopLINE(PL_curcop);
4125 while (AvFILL(paramList) >= 0) {
4126 cv = (CV*)av_shift(paramList);
4128 if (paramList == PL_beginav) {
4129 /* save PL_beginav for compiler */
4130 if (! PL_beginav_save)
4131 PL_beginav_save = newAV();
4132 av_push(PL_beginav_save, (SV*)cv);
4134 else if (paramList == PL_checkav) {
4135 /* save PL_checkav for compiler */
4136 if (! PL_checkav_save)
4137 PL_checkav_save = newAV();
4138 av_push(PL_checkav_save, (SV*)cv);
4143 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4144 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4150 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4154 (void)SvPV(atsv, len);
4156 PL_curcop = &PL_compiling;
4157 CopLINE_set(PL_curcop, oldline);
4158 if (paramList == PL_beginav)
4159 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4161 Perl_sv_catpvf(aTHX_ atsv,
4162 "%s failed--call queue aborted",
4163 paramList == PL_checkav ? "CHECK"
4164 : paramList == PL_initav ? "INIT"
4166 while (PL_scopestack_ix > oldscope)
4169 Perl_croak(aTHX_ "%"SVf"", atsv);
4176 /* my_exit() was called */
4177 while (PL_scopestack_ix > oldscope)
4180 PL_curstash = PL_defstash;
4181 PL_curcop = &PL_compiling;
4182 CopLINE_set(PL_curcop, oldline);
4184 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4185 if (paramList == PL_beginav)
4186 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4188 Perl_croak(aTHX_ "%s failed--call queue aborted",
4189 paramList == PL_checkav ? "CHECK"
4190 : paramList == PL_initav ? "INIT"
4197 PL_curcop = &PL_compiling;
4198 CopLINE_set(PL_curcop, oldline);
4201 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4209 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4211 S_vcall_list_body(pTHX_ va_list args)
4213 CV *cv = va_arg(args, CV*);
4214 return call_list_body(cv);
4219 S_call_list_body(pTHX_ CV *cv)
4221 PUSHMARK(PL_stack_sp);
4222 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4227 Perl_my_exit(pTHX_ U32 status)
4229 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4230 thr, (unsigned long) status));
4239 STATUS_NATIVE_SET(status);
4246 Perl_my_failure_exit(pTHX)
4249 if (vaxc$errno & 1) {
4250 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4251 STATUS_NATIVE_SET(44);
4254 if (!vaxc$errno && errno) /* unlikely */
4255 STATUS_NATIVE_SET(44);
4257 STATUS_NATIVE_SET(vaxc$errno);
4262 STATUS_POSIX_SET(errno);
4264 exitstatus = STATUS_POSIX >> 8;
4265 if (exitstatus & 255)
4266 STATUS_POSIX_SET(exitstatus);
4268 STATUS_POSIX_SET(255);
4275 S_my_exit_jump(pTHX)
4277 register PERL_CONTEXT *cx;
4282 SvREFCNT_dec(PL_e_script);
4283 PL_e_script = Nullsv;
4286 POPSTACK_TO(PL_mainstack);
4287 if (cxstack_ix >= 0) {
4290 POPBLOCK(cx,PL_curpm);
4298 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4301 p = SvPVX(PL_e_script);
4302 nl = strchr(p, '\n');
4303 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4305 filter_del(read_e_script);
4308 sv_catpvn(buf_sv, p, nl-p);
4309 sv_chop(PL_e_script, nl);