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 (!PL_hash_seed_set)
904 PL_hash_seed = get_seed();
906 char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
912 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n",
916 #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
922 /* Set PL_origalen be the sum of the contiguous argv[]
923 * elements plus the size of the env in case that it is
924 * contiguous with the argv[]. This is used in mg.c:mg_set()
925 * as the maximum modifiable length of $0. In the worst case
926 * the area we are able to modify is limited to the size of
927 * the original argv[0]. (See below for 'contiguous', though.)
932 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
933 /* Do the mask check only if the args seem like aligned. */
935 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
937 /* See if all the arguments are contiguous in memory. Note
938 * that 'contiguous' is a loose term because some platforms
939 * align the argv[] and the envp[]. If the arguments look
940 * like non-aligned, assume that they are 'strictly' or
941 * 'traditionally' contiguous. If the arguments look like
942 * aligned, we just check that they are within aligned
943 * PTRSIZE bytes. As long as no system has something bizarre
944 * like the argv[] interleaved with some other data, we are
945 * fine. (Did I just evoke Murphy's Law?) --jhi */
948 for (i = 1; i < PL_origargc; i++) {
949 if ((PL_origargv[i] == s + 1
951 || PL_origargv[i] == s + 2
956 (PL_origargv[i] > s &&
958 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
967 /* Can we grab env area too to be used as the area for $0? */
968 if (PL_origenviron) {
969 if ((PL_origenviron[0] == s + 1
971 || (PL_origenviron[0] == s + 9 && (s += 8))
976 (PL_origenviron[0] > s &&
978 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
982 s = PL_origenviron[0];
985 my_setenv("NoNe SuCh", Nullch);
986 /* Force copy of environment. */
987 for (i = 1; PL_origenviron[i]; i++) {
988 if (PL_origenviron[i] == s + 1
991 (PL_origenviron[i] > s &&
993 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
996 s = PL_origenviron[i];
1004 PL_origalen = s - PL_origargv[0];
1009 /* Come here if running an undumped a.out. */
1011 PL_origfilename = savepv(argv[0]);
1012 PL_do_undump = FALSE;
1013 cxstack_ix = -1; /* start label stack again */
1015 init_postdump_symbols(argc,argv,env);
1020 op_free(PL_main_root);
1021 PL_main_root = Nullop;
1023 PL_main_start = Nullop;
1024 SvREFCNT_dec(PL_main_cv);
1025 PL_main_cv = Nullcv;
1028 oldscope = PL_scopestack_ix;
1029 PL_dowarn = G_WARN_OFF;
1031 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1032 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
1038 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1039 parse_body(env,xsinit);
1042 call_list(oldscope, PL_checkav);
1049 /* my_exit() was called */
1050 while (PL_scopestack_ix > oldscope)
1053 PL_curstash = PL_defstash;
1055 call_list(oldscope, PL_checkav);
1056 ret = STATUS_NATIVE_EXPORT;
1059 PerlIO_printf(Perl_error_log, "panic: top_env\n");
1067 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1069 S_vparse_body(pTHX_ va_list args)
1071 char **env = va_arg(args, char**);
1072 XSINIT_t xsinit = va_arg(args, XSINIT_t);
1074 return parse_body(env, xsinit);
1079 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
1081 int argc = PL_origargc;
1082 char **argv = PL_origargv;
1083 char *scriptname = NULL;
1085 VOL bool dosearch = FALSE;
1086 char *validarg = "";
1089 char *cddir = Nullch;
1091 sv_setpvn(PL_linestr,"",0);
1092 sv = newSVpvn("",0); /* first used for -I flags */
1096 for (argc--,argv++; argc > 0; argc--,argv++) {
1097 if (argv[0][0] != '-' || !argv[0][1])
1101 validarg = " PHOOEY ";
1109 #ifndef PERL_STRICT_CR
1134 if ((s = moreswitches(s)))
1139 CHECK_MALLOC_TOO_LATE_FOR('t');
1140 if( !PL_tainting ) {
1141 PL_taint_warn = TRUE;
1147 CHECK_MALLOC_TOO_LATE_FOR('T');
1149 PL_taint_warn = FALSE;
1154 #ifdef MACOS_TRADITIONAL
1155 /* ignore -e for Dev:Pseudo argument */
1156 if (argv[1] && !strcmp(argv[1], "Dev:Pseudo"))
1159 if (PL_euid != PL_uid || PL_egid != PL_gid)
1160 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
1162 PL_e_script = newSVpvn("",0);
1163 filter_add(read_e_script, NULL);
1166 sv_catpv(PL_e_script, s);
1168 sv_catpv(PL_e_script, argv[1]);
1172 Perl_croak(aTHX_ "No code specified for -e");
1173 sv_catpv(PL_e_script, "\n");
1176 case 'I': /* -I handled both here and in moreswitches() */
1178 if (!*++s && (s=argv[1]) != Nullch) {
1183 STRLEN len = strlen(s);
1184 p = savepvn(s, len);
1185 incpush(p, TRUE, TRUE, FALSE);
1186 sv_catpvn(sv, "-I", 2);
1187 sv_catpvn(sv, p, len);
1188 sv_catpvn(sv, " ", 1);
1192 Perl_croak(aTHX_ "No directory specified for -I");
1196 PL_preprocess = TRUE;
1206 PL_preambleav = newAV();
1207 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
1209 PL_Sv = newSVpv("print myconfig();",0);
1211 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
1213 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
1215 sv_catpv(PL_Sv,"\" Compile-time options:");
1217 sv_catpv(PL_Sv," DEBUGGING");
1219 # ifdef MULTIPLICITY
1220 sv_catpv(PL_Sv," MULTIPLICITY");
1222 # ifdef USE_5005THREADS
1223 sv_catpv(PL_Sv," USE_5005THREADS");
1225 # ifdef USE_ITHREADS
1226 sv_catpv(PL_Sv," USE_ITHREADS");
1228 # ifdef USE_64_BIT_INT
1229 sv_catpv(PL_Sv," USE_64_BIT_INT");
1231 # ifdef USE_64_BIT_ALL
1232 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1234 # ifdef USE_LONG_DOUBLE
1235 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1237 # ifdef USE_LARGE_FILES
1238 sv_catpv(PL_Sv," USE_LARGE_FILES");
1241 sv_catpv(PL_Sv," USE_SOCKS");
1243 # ifdef PERL_IMPLICIT_CONTEXT
1244 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1246 # ifdef PERL_IMPLICIT_SYS
1247 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1249 sv_catpv(PL_Sv,"\\n\",");
1251 #if defined(LOCAL_PATCH_COUNT)
1252 if (LOCAL_PATCH_COUNT > 0) {
1254 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1255 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1256 if (PL_localpatches[i])
1257 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1261 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1264 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1266 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1269 sv_catpv(PL_Sv, "; \
1271 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; ");
1274 push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";");
1277 print \" \\%ENV:\\n @env\\n\" if @env; \
1278 print \" \\@INC:\\n @INC\\n\";");
1281 PL_Sv = newSVpv("config_vars(qw(",0);
1282 sv_catpv(PL_Sv, ++s);
1283 sv_catpv(PL_Sv, "))");
1286 av_push(PL_preambleav, PL_Sv);
1287 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1290 PL_doextract = TRUE;
1298 if (!*++s || isSPACE(*s)) {
1302 /* catch use of gnu style long options */
1303 if (strEQ(s, "version")) {
1307 if (strEQ(s, "help")) {
1314 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1318 sv_setsv(get_sv("/", TRUE), PL_rs);
1321 #ifndef SECURE_INTERNAL_GETENV
1324 (s = PerlEnv_getenv("PERL5OPT")))
1329 if (*s == '-' && *(s+1) == 'T') {
1330 CHECK_MALLOC_TOO_LATE_FOR('T');
1332 PL_taint_warn = FALSE;
1335 char *popt_copy = Nullch;
1348 if (!strchr("DIMUdmtwA", *s))
1349 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1353 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0)));
1354 s = popt_copy + (s - popt);
1355 d = popt_copy + (d - popt);
1362 if( !PL_tainting ) {
1363 PL_taint_warn = TRUE;
1373 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) {
1374 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize);
1378 scriptname = argv[0];
1381 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1383 else if (scriptname == Nullch) {
1385 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1393 open_script(scriptname,dosearch,sv,&fdscript);
1395 validate_suid(validarg, scriptname,fdscript);
1398 #if defined(SIGCHLD) || defined(SIGCLD)
1401 # define SIGCHLD SIGCLD
1403 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1404 if (sigstate == SIG_IGN) {
1405 if (ckWARN(WARN_SIGNAL))
1406 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
1407 "Can't ignore signal CHLD, forcing to default");
1408 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1414 #ifdef MACOS_TRADITIONAL
1415 if (PL_doextract || gMacPerl_AlwaysExtract) {
1420 if (cddir && PerlDir_chdir(cddir) < 0)
1421 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1425 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1426 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1427 CvUNIQUE_on(PL_compcv);
1429 CvPADLIST(PL_compcv) = pad_new(0);
1430 #ifdef USE_5005THREADS
1431 CvOWNER(PL_compcv) = 0;
1432 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1433 MUTEX_INIT(CvMUTEXP(PL_compcv));
1434 #endif /* USE_5005THREADS */
1437 boot_core_UNIVERSAL();
1439 boot_core_xsutils();
1443 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
1445 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC)
1451 # ifdef HAS_SOCKS5_INIT
1452 socks5_init(argv[0]);
1458 init_predump_symbols();
1459 /* init_postdump_symbols not currently designed to be called */
1460 /* more than once (ENV isn't cleared first, for example) */
1461 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1463 init_postdump_symbols(argc,argv,env);
1465 /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}.
1466 * PL_utf8locale is conditionally turned on by
1467 * locale.c:Perl_init_i18nl10n() if the environment
1468 * look like the user wants to use UTF-8. */
1470 /* Requires init_predump_symbols(). */
1471 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
1476 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
1477 * and the default open disciplines. */
1478 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
1479 PL_stdingv && (io = GvIO(PL_stdingv)) &&
1481 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1482 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
1483 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
1485 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1486 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
1487 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
1489 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
1490 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
1491 (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) {
1492 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
1493 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
1496 sv_setpvn(sv, ":utf8\0:utf8", 11);
1498 sv_setpvn(sv, ":utf8\0", 6);
1501 sv_setpvn(sv, "\0:utf8", 6);
1507 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
1508 if (strEQ(s, "unsafe"))
1509 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
1510 else if (strEQ(s, "safe"))
1511 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
1513 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
1518 /* now parse the script */
1520 SETERRNO(0,SS_NORMAL);
1522 #ifdef MACOS_TRADITIONAL
1523 if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) {
1525 Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename));
1527 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1528 MacPerl_MPWFileName(PL_origfilename));
1532 if (yyparse() || PL_error_count) {
1534 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1536 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1541 CopLINE_set(PL_curcop, 0);
1542 PL_curstash = PL_defstash;
1543 PL_preprocess = FALSE;
1545 SvREFCNT_dec(PL_e_script);
1546 PL_e_script = Nullsv;
1553 SAVECOPFILE(PL_curcop);
1554 SAVECOPLINE(PL_curcop);
1555 gv_check(PL_defstash);
1562 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1563 dump_mstats("after compilation:");
1572 =for apidoc perl_run
1574 Tells a Perl interpreter to run. See L<perlembed>.
1585 #ifdef USE_5005THREADS
1589 oldscope = PL_scopestack_ix;
1594 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1596 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1602 cxstack_ix = -1; /* start context stack again */
1604 case 0: /* normal completion */
1605 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1610 case 2: /* my_exit() */
1611 while (PL_scopestack_ix > oldscope)
1614 PL_curstash = PL_defstash;
1615 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
1616 PL_endav && !PL_minus_c)
1617 call_list(oldscope, PL_endav);
1619 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1620 dump_mstats("after execution: ");
1622 ret = STATUS_NATIVE_EXPORT;
1626 POPSTACK_TO(PL_mainstack);
1629 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1639 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1641 S_vrun_body(pTHX_ va_list args)
1643 I32 oldscope = va_arg(args, I32);
1645 return run_body(oldscope);
1651 S_run_body(pTHX_ I32 oldscope)
1653 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1654 PL_sawampersand ? "Enabling" : "Omitting"));
1656 if (!PL_restartop) {
1657 DEBUG_x(dump_all());
1658 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1659 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1663 #ifdef MACOS_TRADITIONAL
1664 PerlIO_printf(Perl_error_log, "%s%s syntax OK\n",
1665 (gMacPerl_ErrorFormat ? "# " : ""),
1666 MacPerl_MPWFileName(PL_origfilename));
1668 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1672 if (PERLDB_SINGLE && PL_DBsingle)
1673 sv_setiv(PL_DBsingle, 1);
1675 call_list(oldscope, PL_initav);
1681 PL_op = PL_restartop;
1685 else if (PL_main_start) {
1686 CvDEPTH(PL_main_cv) = 1;
1687 PL_op = PL_main_start;
1697 =head1 SV Manipulation Functions
1699 =for apidoc p||get_sv
1701 Returns the SV of the specified Perl scalar. If C<create> is set and the
1702 Perl variable does not exist then it will be created. If C<create> is not
1703 set and the variable does not exist then NULL is returned.
1709 Perl_get_sv(pTHX_ const char *name, I32 create)
1712 #ifdef USE_5005THREADS
1713 if (name[1] == '\0' && !isALPHA(name[0])) {
1714 PADOFFSET tmp = find_threadsv(name);
1715 if (tmp != NOT_IN_PAD)
1716 return THREADSV(tmp);
1718 #endif /* USE_5005THREADS */
1719 gv = gv_fetchpv(name, create, SVt_PV);
1726 =head1 Array Manipulation Functions
1728 =for apidoc p||get_av
1730 Returns the AV of the specified Perl array. If C<create> is set and the
1731 Perl variable does not exist then it will be created. If C<create> is not
1732 set and the variable does not exist then NULL is returned.
1738 Perl_get_av(pTHX_ const char *name, I32 create)
1740 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1749 =head1 Hash Manipulation Functions
1751 =for apidoc p||get_hv
1753 Returns the HV of the specified Perl hash. If C<create> is set and the
1754 Perl variable does not exist then it will be created. If C<create> is not
1755 set and the variable does not exist then NULL is returned.
1761 Perl_get_hv(pTHX_ const char *name, I32 create)
1763 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1772 =head1 CV Manipulation Functions
1774 =for apidoc p||get_cv
1776 Returns the CV of the specified Perl subroutine. If C<create> is set and
1777 the Perl subroutine does not exist then it will be declared (which has the
1778 same effect as saying C<sub name;>). If C<create> is not set and the
1779 subroutine does not exist then NULL is returned.
1785 Perl_get_cv(pTHX_ const char *name, I32 create)
1787 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1788 /* XXX unsafe for threads if eval_owner isn't held */
1789 /* XXX this is probably not what they think they're getting.
1790 * It has the same effect as "sub name;", i.e. just a forward
1792 if (create && !GvCVu(gv))
1793 return newSUB(start_subparse(FALSE, 0),
1794 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1802 /* Be sure to refetch the stack pointer after calling these routines. */
1806 =head1 Callback Functions
1808 =for apidoc p||call_argv
1810 Performs a callback to the specified Perl sub. See L<perlcall>.
1816 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1818 /* See G_* flags in cop.h */
1819 /* null terminated arg list */
1826 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1831 return call_pv(sub_name, flags);
1835 =for apidoc p||call_pv
1837 Performs a callback to the specified Perl sub. See L<perlcall>.
1843 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1844 /* name of the subroutine */
1845 /* See G_* flags in cop.h */
1847 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1851 =for apidoc p||call_method
1853 Performs a callback to the specified Perl method. The blessed object must
1854 be on the stack. See L<perlcall>.
1860 Perl_call_method(pTHX_ const char *methname, I32 flags)
1861 /* name of the subroutine */
1862 /* See G_* flags in cop.h */
1864 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD);
1867 /* May be called with any of a CV, a GV, or an SV containing the name. */
1869 =for apidoc p||call_sv
1871 Performs a callback to the Perl sub whose name is in the SV. See
1878 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1879 /* See G_* flags in cop.h */
1882 LOGOP myop; /* fake syntax tree node */
1885 volatile I32 retval = 0;
1887 bool oldcatch = CATCH_GET;
1892 if (flags & G_DISCARD) {
1897 Zero(&myop, 1, LOGOP);
1898 myop.op_next = Nullop;
1899 if (!(flags & G_NOARGS))
1900 myop.op_flags |= OPf_STACKED;
1901 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1902 (flags & G_ARRAY) ? OPf_WANT_LIST :
1907 EXTEND(PL_stack_sp, 1);
1908 *++PL_stack_sp = sv;
1910 oldscope = PL_scopestack_ix;
1912 if (PERLDB_SUB && PL_curstash != PL_debstash
1913 /* Handle first BEGIN of -d. */
1914 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1915 /* Try harder, since this may have been a sighandler, thus
1916 * curstash may be meaningless. */
1917 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1918 && !(flags & G_NODEBUG))
1919 PL_op->op_private |= OPpENTERSUB_DB;
1921 if (flags & G_METHOD) {
1922 Zero(&method_op, 1, UNOP);
1923 method_op.op_next = PL_op;
1924 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
1925 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1926 PL_op = (OP*)&method_op;
1929 if (!(flags & G_EVAL)) {
1931 call_body((OP*)&myop, FALSE);
1932 retval = PL_stack_sp - (PL_stack_base + oldmark);
1933 CATCH_SET(oldcatch);
1936 myop.op_other = (OP*)&myop;
1938 /* we're trying to emulate pp_entertry() here */
1940 register PERL_CONTEXT *cx;
1941 I32 gimme = GIMME_V;
1946 push_return(Nullop);
1947 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp);
1949 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1951 PL_in_eval = EVAL_INEVAL;
1952 if (flags & G_KEEPERR)
1953 PL_in_eval |= EVAL_KEEPERR;
1959 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1961 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1968 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1970 call_body((OP*)&myop, FALSE);
1972 retval = PL_stack_sp - (PL_stack_base + oldmark);
1973 if (!(flags & G_KEEPERR))
1980 /* my_exit() was called */
1981 PL_curstash = PL_defstash;
1984 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1985 Perl_croak(aTHX_ "Callback called exit");
1990 PL_op = PL_restartop;
1994 PL_stack_sp = PL_stack_base + oldmark;
1995 if (flags & G_ARRAY)
1999 *++PL_stack_sp = &PL_sv_undef;
2004 if (PL_scopestack_ix > oldscope) {
2008 register PERL_CONTEXT *cx;
2020 if (flags & G_DISCARD) {
2021 PL_stack_sp = PL_stack_base + oldmark;
2030 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2032 S_vcall_body(pTHX_ va_list args)
2034 OP *myop = va_arg(args, OP*);
2035 int is_eval = va_arg(args, int);
2037 call_body(myop, is_eval);
2043 S_call_body(pTHX_ OP *myop, int is_eval)
2045 if (PL_op == myop) {
2047 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */
2049 PL_op = Perl_pp_entersub(aTHX); /* this does */
2055 /* Eval a string. The G_EVAL flag is always assumed. */
2058 =for apidoc p||eval_sv
2060 Tells Perl to C<eval> the string in the SV.
2066 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
2068 /* See G_* flags in cop.h */
2071 UNOP myop; /* fake syntax tree node */
2072 volatile I32 oldmark = SP - PL_stack_base;
2073 volatile I32 retval = 0;
2079 if (flags & G_DISCARD) {
2086 Zero(PL_op, 1, UNOP);
2087 EXTEND(PL_stack_sp, 1);
2088 *++PL_stack_sp = sv;
2089 oldscope = PL_scopestack_ix;
2091 if (!(flags & G_NOARGS))
2092 myop.op_flags = OPf_STACKED;
2093 myop.op_next = Nullop;
2094 myop.op_type = OP_ENTEREVAL;
2095 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
2096 (flags & G_ARRAY) ? OPf_WANT_LIST :
2098 if (flags & G_KEEPERR)
2099 myop.op_flags |= OPf_SPECIAL;
2101 #ifdef PERL_FLEXIBLE_EXCEPTIONS
2103 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
2110 #ifndef PERL_FLEXIBLE_EXCEPTIONS
2112 call_body((OP*)&myop,TRUE);
2114 retval = PL_stack_sp - (PL_stack_base + oldmark);
2115 if (!(flags & G_KEEPERR))
2122 /* my_exit() was called */
2123 PL_curstash = PL_defstash;
2126 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
2127 Perl_croak(aTHX_ "Callback called exit");
2132 PL_op = PL_restartop;
2136 PL_stack_sp = PL_stack_base + oldmark;
2137 if (flags & G_ARRAY)
2141 *++PL_stack_sp = &PL_sv_undef;
2147 if (flags & G_DISCARD) {
2148 PL_stack_sp = PL_stack_base + oldmark;
2158 =for apidoc p||eval_pv
2160 Tells Perl to C<eval> the given string and return an SV* result.
2166 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
2169 SV* sv = newSVpv(p, 0);
2171 eval_sv(sv, G_SCALAR);
2178 if (croak_on_error && SvTRUE(ERRSV)) {
2180 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
2186 /* Require a module. */
2189 =head1 Embedding Functions
2191 =for apidoc p||require_pv
2193 Tells Perl to C<require> the file named by the string argument. It is
2194 analogous to the Perl code C<eval "require '$file'">. It's even
2195 implemented that way; consider using load_module instead.
2200 Perl_require_pv(pTHX_ const char *pv)
2204 PUSHSTACKi(PERLSI_REQUIRE);
2206 sv = sv_newmortal();
2207 sv_setpv(sv, "require '");
2210 eval_sv(sv, G_DISCARD);
2216 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
2220 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV)))
2221 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen);
2225 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
2227 /* This message really ought to be max 23 lines.
2228 * Removed -h because the user already knows that option. Others? */
2230 static char *usage_msg[] = {
2231 "-0[octal] specify record separator (\\0, if no argument)",
2232 "-a autosplit mode with -n or -p (splits $_ into @F)",
2233 "-C enable native wide character system interfaces",
2234 "-c check syntax only (runs BEGIN and CHECK blocks)",
2235 "-d[:debugger] run program under debugger",
2236 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
2237 "-e 'command' one line of program (several -e's allowed, omit programfile)",
2238 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
2239 "-i[extension] edit <> files in place (makes backup if extension supplied)",
2240 "-Idirectory specify @INC/#include directory (several -I's allowed)",
2241 "-l[octal] enable line ending processing, specifies line terminator",
2242 "-[mM][-]module execute `use/no module...' before executing program",
2243 "-n assume 'while (<>) { ... }' loop around program",
2244 "-p assume loop like -n but print line also, like sed",
2245 "-P run program through C preprocessor before compilation",
2246 "-s enable rudimentary parsing for switches after programfile",
2247 "-S look for programfile using PATH environment variable",
2248 "-T enable tainting checks",
2249 "-t enable tainting warnings",
2250 "-u dump core after parsing program",
2251 "-U allow unsafe operations",
2252 "-v print version, subversion (includes VERY IMPORTANT perl info)",
2253 "-V[:variable] print configuration summary (or a single Config.pm variable)",
2254 "-w enable many useful warnings (RECOMMENDED)",
2255 "-W enable all warnings",
2256 "-X disable all warnings",
2257 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
2261 char **p = usage_msg;
2263 PerlIO_printf(PerlIO_stdout(),
2264 "\nUsage: %s [switches] [--] [programfile] [arguments]",
2267 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++);
2270 /* convert a string of -D options (or digits) into an int.
2271 * sets *s to point to the char after the options */
2275 Perl_get_debug_opts(pTHX_ char **s)
2279 /* if adding extra options, remember to update DEBUG_MASK */
2280 static char debopts[] = "psltocPmfrxu HXDSTRJvC";
2282 for (; isALNUM(**s); (*s)++) {
2283 char *d = strchr(debopts,**s);
2285 i |= 1 << (d - debopts);
2286 else if (ckWARN_d(WARN_DEBUGGING))
2287 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2288 "invalid option -D%c\n", **s);
2293 for (; isALNUM(**s); (*s)++) ;
2296 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
2297 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2298 "-Dp not implemented on this platform\n");
2304 /* This routine handles any switches that can be given during run */
2307 Perl_moreswitches(pTHX_ char *s)
2317 SvREFCNT_dec(PL_rs);
2318 if (s[1] == 'x' && s[2]) {
2322 for (s += 2, e = s; *e; e++);
2324 flags = PERL_SCAN_SILENT_ILLDIGIT;
2325 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
2326 if (s + numlen < e) {
2327 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
2331 PL_rs = newSVpvn("", 0);
2332 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
2333 tmps = (U8*)SvPVX(PL_rs);
2334 uvchr_to_utf8(tmps, rschar);
2335 SvCUR_set(PL_rs, UNISKIP(rschar));
2340 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
2341 if (rschar & ~((U8)~0))
2342 PL_rs = &PL_sv_undef;
2343 else if (!rschar && numlen >= 2)
2344 PL_rs = newSVpvn("", 0);
2346 char ch = (char)rschar;
2347 PL_rs = newSVpvn(&ch, 1);
2354 PL_unicode = parse_unicode_opts(&s);
2359 while (*s && !isSPACE(*s)) ++s;
2361 PL_splitstr = savepv(PL_splitstr);
2374 /* The following permits -d:Mod to accepts arguments following an =
2375 in the fashion that -MSome::Mod does. */
2376 if (*s == ':' || *s == '=') {
2379 sv = newSVpv("use Devel::", 0);
2381 /* We now allow -d:Module=Foo,Bar */
2382 while(isALNUM(*s) || *s==':') ++s;
2384 sv_catpv(sv, start);
2386 sv_catpvn(sv, start, s-start);
2387 sv_catpv(sv, " split(/,/,q{");
2392 my_setenv("PERL5DB", SvPV(sv, PL_na));
2395 PL_perldb = PERLDB_ALL;
2404 PL_debug = get_debug_opts(&s) | DEBUG_TOP_FLAG;
2405 #else /* !DEBUGGING */
2406 if (ckWARN_d(WARN_DEBUGGING))
2407 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
2408 "Recompile perl with -DDEBUGGING to use -D switch\n");
2409 for (s++; isALNUM(*s); s++) ;
2415 usage(PL_origargv[0]);
2419 Safefree(PL_inplace);
2420 #if defined(__CYGWIN__) /* do backup extension automagically */
2421 if (*(s+1) == '\0') {
2422 PL_inplace = savepv(".bak");
2425 #endif /* __CYGWIN__ */
2426 PL_inplace = savepv(s+1);
2428 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2431 if (*s == '-') /* Additional switches on #! line. */
2435 case 'I': /* -I handled both here and in parse_body() */
2438 while (*s && isSPACE(*s))
2443 /* ignore trailing spaces (possibly followed by other switches) */
2445 for (e = p; *e && !isSPACE(*e); e++) ;
2449 } while (*p && *p != '-');
2450 e = savepvn(s, e-s);
2451 incpush(e, TRUE, TRUE, FALSE);
2458 Perl_croak(aTHX_ "No directory specified for -I");
2464 SvREFCNT_dec(PL_ors_sv);
2469 PL_ors_sv = newSVpvn("\n",1);
2470 numlen = 3 + (*s == '0');
2471 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
2475 if (RsPARA(PL_rs)) {
2476 PL_ors_sv = newSVpvn("\n\n",2);
2479 PL_ors_sv = newSVsv(PL_rs);
2486 PL_preambleav = newAV();
2488 SV *sv = newSVpvn("use assertions::activate split(/,/,q{",37);
2492 av_push(PL_preambleav, sv);
2495 av_push(PL_preambleav, newSVpvn("use assertions::activate",24));
2498 forbid_setid("-M"); /* XXX ? */
2501 forbid_setid("-m"); /* XXX ? */
2506 /* -M-foo == 'no foo' */
2507 if (*s == '-') { use = "no "; ++s; }
2508 sv = newSVpv(use,0);
2510 /* We allow -M'Module qw(Foo Bar)' */
2511 while(isALNUM(*s) || *s==':') ++s;
2513 sv_catpv(sv, start);
2514 if (*(start-1) == 'm') {
2516 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2517 sv_catpv( sv, " ()");
2521 Perl_croak(aTHX_ "Module name required with -%c option",
2523 sv_catpvn(sv, start, s-start);
2524 sv_catpv(sv, " split(/,/,q{");
2530 PL_preambleav = newAV();
2531 av_push(PL_preambleav, sv);
2534 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2546 PL_doswitches = TRUE;
2560 #ifdef MACOS_TRADITIONAL
2561 Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh");
2563 PL_do_undump = TRUE;
2572 PerlIO_printf(PerlIO_stdout(),
2573 Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s",
2574 PL_patchlevel, ARCHNAME));
2576 /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
2577 PerlIO_printf(PerlIO_stdout(),
2578 Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel));
2579 PerlIO_printf(PerlIO_stdout(),
2580 Perl_form(aTHX_ " built under %s at %s %s\n",
2581 OSNAME, __DATE__, __TIME__));
2582 PerlIO_printf(PerlIO_stdout(),
2583 Perl_form(aTHX_ " OS Specific Release: %s\n",
2587 #if defined(LOCAL_PATCH_COUNT)
2588 if (LOCAL_PATCH_COUNT > 0)
2589 PerlIO_printf(PerlIO_stdout(),
2590 "\n(with %d registered patch%s, "
2591 "see perl -V for more detail)",
2592 (int)LOCAL_PATCH_COUNT,
2593 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2596 PerlIO_printf(PerlIO_stdout(),
2597 "\n\nCopyright 1987-2003, Larry Wall\n");
2598 #ifdef MACOS_TRADITIONAL
2599 PerlIO_printf(PerlIO_stdout(),
2600 "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n"
2601 "maintained by Chris Nandor\n");
2604 PerlIO_printf(PerlIO_stdout(),
2605 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2608 PerlIO_printf(PerlIO_stdout(),
2609 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
2610 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2613 PerlIO_printf(PerlIO_stdout(),
2614 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2615 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
2618 PerlIO_printf(PerlIO_stdout(),
2619 "atariST series port, ++jrb bammi@cadence.com\n");
2622 PerlIO_printf(PerlIO_stdout(),
2623 "BeOS port Copyright Tom Spindler, 1997-1999\n");
2626 PerlIO_printf(PerlIO_stdout(),
2627 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
2630 PerlIO_printf(PerlIO_stdout(),
2631 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2634 PerlIO_printf(PerlIO_stdout(),
2635 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
2638 PerlIO_printf(PerlIO_stdout(),
2639 "VM/ESA port by Neale Ferguson, 1998-1999\n");
2642 PerlIO_printf(PerlIO_stdout(),
2643 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2646 PerlIO_printf(PerlIO_stdout(),
2647 "MiNT port by Guido Flohr, 1997-1999\n");
2650 PerlIO_printf(PerlIO_stdout(),
2651 "EPOC port by Olaf Flebbe, 1999-2002\n");
2654 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
2655 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
2658 #ifdef BINARY_BUILD_NOTICE
2659 BINARY_BUILD_NOTICE;
2661 PerlIO_printf(PerlIO_stdout(),
2663 Perl may be copied only under the terms of either the Artistic License or the\n\
2664 GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
2665 Complete documentation for Perl, including FAQ lists, should be found on\n\
2666 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2667 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2670 if (! (PL_dowarn & G_WARN_ALL_MASK))
2671 PL_dowarn |= G_WARN_ON;
2675 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2676 if (!specialWARN(PL_compiling.cop_warnings))
2677 SvREFCNT_dec(PL_compiling.cop_warnings);
2678 PL_compiling.cop_warnings = pWARN_ALL ;
2682 PL_dowarn = G_WARN_ALL_OFF;
2683 if (!specialWARN(PL_compiling.cop_warnings))
2684 SvREFCNT_dec(PL_compiling.cop_warnings);
2685 PL_compiling.cop_warnings = pWARN_NONE ;
2690 if (s[1] == '-') /* Additional switches on #! line. */
2695 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2701 #ifdef ALTERNATE_SHEBANG
2702 case 'S': /* OS/2 needs -S on "extproc" line. */
2710 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2715 /* compliments of Tom Christiansen */
2717 /* unexec() can be found in the Gnu emacs distribution */
2718 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2721 Perl_my_unexec(pTHX)
2729 prog = newSVpv(BIN_EXP, 0);
2730 sv_catpv(prog, "/perl");
2731 file = newSVpv(PL_origfilename, 0);
2732 sv_catpv(file, ".perldump");
2734 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2735 /* unexec prints msg to stderr in case of failure */
2736 PerlProc_exit(status);
2739 # include <lib$routines.h>
2740 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2742 ABORT(); /* for use with undump */
2747 /* initialize curinterp */
2753 # define PERLVAR(var,type)
2754 # define PERLVARA(var,n,type)
2755 # if defined(PERL_IMPLICIT_CONTEXT)
2756 # if defined(USE_5005THREADS)
2757 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2758 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2759 # else /* !USE_5005THREADS */
2760 # define PERLVARI(var,type,init) aTHX->var = init;
2761 # define PERLVARIC(var,type,init) aTHX->var = init;
2762 # endif /* USE_5005THREADS */
2764 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2765 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2767 # include "intrpvar.h"
2768 # ifndef USE_5005THREADS
2769 # include "thrdvar.h"
2776 # define PERLVAR(var,type)
2777 # define PERLVARA(var,n,type)
2778 # define PERLVARI(var,type,init) PL_##var = init;
2779 # define PERLVARIC(var,type,init) PL_##var = init;
2780 # include "intrpvar.h"
2781 # ifndef USE_5005THREADS
2782 # include "thrdvar.h"
2793 S_init_main_stash(pTHX)
2797 PL_curstash = PL_defstash = newHV();
2798 PL_curstname = newSVpvn("main",4);
2799 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2800 SvREFCNT_dec(GvHV(gv));
2801 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2803 HvNAME(PL_defstash) = savepv("main");
2804 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2805 GvMULTI_on(PL_incgv);
2806 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2807 GvMULTI_on(PL_hintgv);
2808 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2809 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2810 GvMULTI_on(PL_errgv);
2811 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2812 GvMULTI_on(PL_replgv);
2813 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2814 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2815 sv_setpvn(ERRSV, "", 0);
2816 PL_curstash = PL_defstash;
2817 CopSTASH_set(&PL_compiling, PL_defstash);
2818 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2819 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2820 /* We must init $/ before switches are processed. */
2821 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2825 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2829 char *cpp_discard_flag;
2835 PL_origfilename = savepv("-e");
2838 /* if find_script() returns, it returns a malloc()-ed value */
2839 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2841 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2842 char *s = scriptname + 8;
2843 *fdscript = atoi(s);
2847 scriptname = savepv(s + 1);
2848 Safefree(PL_origfilename);
2849 PL_origfilename = scriptname;
2854 CopFILE_free(PL_curcop);
2855 CopFILE_set(PL_curcop, PL_origfilename);
2856 if (strEQ(PL_origfilename,"-"))
2858 if (*fdscript >= 0) {
2859 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2860 # if defined(HAS_FCNTL) && defined(F_SETFD)
2862 /* ensure close-on-exec */
2863 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2866 else if (PL_preprocess) {
2867 char *cpp_cfg = CPPSTDIN;
2868 SV *cpp = newSVpvn("",0);
2869 SV *cmd = NEWSV(0,0);
2871 if (strEQ(cpp_cfg, "cppstdin"))
2872 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2873 sv_catpv(cpp, cpp_cfg);
2876 sv_catpvn(sv, "-I", 2);
2877 sv_catpv(sv,PRIVLIB_EXP);
2880 DEBUG_P(PerlIO_printf(Perl_debug_log,
2881 "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n",
2882 scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS));
2884 # if defined(MSDOS) || defined(WIN32) || defined(VMS)
2891 cpp_discard_flag = "";
2893 cpp_discard_flag = "-C";
2897 perl = os2_execname(aTHX);
2899 perl = PL_origargv[0];
2903 /* This strips off Perl comments which might interfere with
2904 the C pre-processor, including #!. #line directives are
2905 deliberately stripped to avoid confusion with Perl's version
2906 of #line. FWP played some golf with it so it will fit
2907 into VMS's 255 character buffer.
2910 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2912 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print";
2914 Perl_sv_setpvf(aTHX_ cmd, "\
2915 %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s",
2916 perl, quote, code, quote, scriptname, cpp,
2917 cpp_discard_flag, sv, CPPMINUS);
2919 PL_doextract = FALSE;
2920 # ifdef IAMSUID /* actually, this is caught earlier */
2921 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2923 (void)seteuid(PL_uid); /* musn't stay setuid root */
2925 # ifdef HAS_SETREUID
2926 (void)setreuid((Uid_t)-1, PL_uid);
2928 # ifdef HAS_SETRESUID
2929 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2931 PerlProc_setuid(PL_uid);
2935 if (PerlProc_geteuid() != PL_uid)
2936 Perl_croak(aTHX_ "Can't do seteuid!\n");
2938 # endif /* IAMSUID */
2940 DEBUG_P(PerlIO_printf(Perl_debug_log,
2941 "PL_preprocess: cmd=\"%s\"\n",
2944 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2948 else if (!*scriptname) {
2949 forbid_setid("program input from stdin");
2950 PL_rsfp = PerlIO_stdin();
2953 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2954 # if defined(HAS_FCNTL) && defined(F_SETFD)
2956 /* ensure close-on-exec */
2957 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);
2962 # ifndef IAMSUID /* in case script is not readable before setuid */
2964 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2965 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2969 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT,
2970 BIN_EXP, (int)PERL_REVISION,
2972 (int)PERL_SUBVERSION), PL_origargv);
2974 Perl_croak(aTHX_ "Can't do setuid\n");
2980 Perl_croak(aTHX_ "Can't open perl script: %s\n",
2983 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2984 CopFILE(PL_curcop), Strerror(errno));
2990 * I_SYSSTATVFS HAS_FSTATVFS
2992 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
2993 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
2994 * here so that metaconfig picks them up. */
2998 S_fd_on_nosuid_fs(pTHX_ int fd)
3000 int check_okay = 0; /* able to do all the required sys/libcalls */
3001 int on_nosuid = 0; /* the fd is on a nosuid fs */
3003 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
3004 * fstatvfs() is UNIX98.
3005 * fstatfs() is 4.3 BSD.
3006 * ustat()+getmnt() is pre-4.3 BSD.
3007 * getmntent() is O(number-of-mounted-filesystems) and can hang on
3008 * an irrelevant filesystem while trying to reach the right one.
3011 #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */
3013 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3014 defined(HAS_FSTATVFS)
3015 # define FD_ON_NOSUID_CHECK_OKAY
3016 struct statvfs stfs;
3018 check_okay = fstatvfs(fd, &stfs) == 0;
3019 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
3020 # endif /* fstatvfs */
3022 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3023 defined(PERL_MOUNT_NOSUID) && \
3024 defined(HAS_FSTATFS) && \
3025 defined(HAS_STRUCT_STATFS) && \
3026 defined(HAS_STRUCT_STATFS_F_FLAGS)
3027 # define FD_ON_NOSUID_CHECK_OKAY
3030 check_okay = fstatfs(fd, &stfs) == 0;
3031 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
3032 # endif /* fstatfs */
3034 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3035 defined(PERL_MOUNT_NOSUID) && \
3036 defined(HAS_FSTAT) && \
3037 defined(HAS_USTAT) && \
3038 defined(HAS_GETMNT) && \
3039 defined(HAS_STRUCT_FS_DATA) && \
3041 # define FD_ON_NOSUID_CHECK_OKAY
3044 if (fstat(fd, &fdst) == 0) {
3046 if (ustat(fdst.st_dev, &us) == 0) {
3048 /* NOSTAT_ONE here because we're not examining fields which
3049 * vary between that case and STAT_ONE. */
3050 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
3051 size_t cmplen = sizeof(us.f_fname);
3052 if (sizeof(fsd.fd_req.path) < cmplen)
3053 cmplen = sizeof(fsd.fd_req.path);
3054 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
3055 fdst.st_dev == fsd.fd_req.dev) {
3057 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
3063 # endif /* fstat+ustat+getmnt */
3065 # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \
3066 defined(HAS_GETMNTENT) && \
3067 defined(HAS_HASMNTOPT) && \
3068 defined(MNTOPT_NOSUID)
3069 # define FD_ON_NOSUID_CHECK_OKAY
3070 FILE *mtab = fopen("/etc/mtab", "r");
3071 struct mntent *entry;
3074 if (mtab && (fstat(fd, &stb) == 0)) {
3075 while (entry = getmntent(mtab)) {
3076 if (stat(entry->mnt_dir, &fsb) == 0
3077 && fsb.st_dev == stb.st_dev)
3079 /* found the filesystem */
3081 if (hasmntopt(entry, MNTOPT_NOSUID))
3084 } /* A single fs may well fail its stat(). */
3089 # endif /* getmntent+hasmntopt */
3092 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
3095 #endif /* IAMSUID */
3098 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
3104 /* do we need to emulate setuid on scripts? */
3106 /* This code is for those BSD systems that have setuid #! scripts disabled
3107 * in the kernel because of a security problem. Merely defining DOSUID
3108 * in perl will not fix that problem, but if you have disabled setuid
3109 * scripts in the kernel, this will attempt to emulate setuid and setgid
3110 * on scripts that have those now-otherwise-useless bits set. The setuid
3111 * root version must be called suidperl or sperlN.NNN. If regular perl
3112 * discovers that it has opened a setuid script, it calls suidperl with
3113 * the same argv that it had. If suidperl finds that the script it has
3114 * just opened is NOT setuid root, it sets the effective uid back to the
3115 * uid. We don't just make perl setuid root because that loses the
3116 * effective uid we had before invoking perl, if it was different from the
3119 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
3120 * be defined in suidperl only. suidperl must be setuid root. The
3121 * Configure script will set this up for you if you want it.
3127 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
3128 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
3129 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
3134 #ifndef HAS_SETREUID
3135 /* On this access check to make sure the directories are readable,
3136 * there is actually a small window that the user could use to make
3137 * filename point to an accessible directory. So there is a faint
3138 * chance that someone could execute a setuid script down in a
3139 * non-accessible directory. I don't know what to do about that.
3140 * But I don't think it's too important. The manual lies when
3141 * it says access() is useful in setuid programs.
3143 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
3144 Perl_croak(aTHX_ "Permission denied");
3146 /* If we can swap euid and uid, then we can determine access rights
3147 * with a simple stat of the file, and then compare device and
3148 * inode to make sure we did stat() on the same file we opened.
3149 * Then we just have to make sure he or she can execute it.
3156 setreuid(PL_euid,PL_uid) < 0
3159 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
3162 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
3163 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
3164 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
3165 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
3166 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
3167 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
3168 Perl_croak(aTHX_ "Permission denied");
3170 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
3171 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
3172 (void)PerlIO_close(PL_rsfp);
3173 Perl_croak(aTHX_ "Permission denied\n");
3177 setreuid(PL_uid,PL_euid) < 0
3179 # if defined(HAS_SETRESUID)
3180 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
3183 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
3184 Perl_croak(aTHX_ "Can't reswap uid and euid");
3185 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
3186 Perl_croak(aTHX_ "Permission denied\n");
3188 #endif /* HAS_SETREUID */
3189 #endif /* IAMSUID */
3191 if (!S_ISREG(PL_statbuf.st_mode))
3192 Perl_croak(aTHX_ "Permission denied");
3193 if (PL_statbuf.st_mode & S_IWOTH)
3194 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
3195 PL_doswitches = FALSE; /* -s is insecure in suid */
3196 CopLINE_inc(PL_curcop);
3197 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
3198 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
3199 Perl_croak(aTHX_ "No #! line");
3200 s = SvPV(PL_linestr,n_a)+2;
3202 while (!isSPACE(*s)) s++;
3203 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
3204 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
3205 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
3206 Perl_croak(aTHX_ "Not a perl script");
3207 while (*s == ' ' || *s == '\t') s++;
3209 * #! arg must be what we saw above. They can invoke it by
3210 * mentioning suidperl explicitly, but they may not add any strange
3211 * arguments beyond what #! says if they do invoke suidperl that way.
3213 len = strlen(validarg);
3214 if (strEQ(validarg," PHOOEY ") ||
3215 strnNE(s,validarg,len) || !isSPACE(s[len]))
3216 Perl_croak(aTHX_ "Args must match #! line");
3219 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
3220 PL_euid == PL_statbuf.st_uid)
3222 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3223 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3224 #endif /* IAMSUID */
3226 if (PL_euid) { /* oops, we're not the setuid root perl */
3227 (void)PerlIO_close(PL_rsfp);
3231 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
3232 (int)PERL_REVISION, (int)PERL_VERSION,
3233 (int)PERL_SUBVERSION), PL_origargv);
3236 Perl_croak(aTHX_ "Can't do setuid\n");
3239 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
3241 (void)setegid(PL_statbuf.st_gid);
3244 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
3246 #ifdef HAS_SETRESGID
3247 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
3249 PerlProc_setgid(PL_statbuf.st_gid);
3253 if (PerlProc_getegid() != PL_statbuf.st_gid)
3254 Perl_croak(aTHX_ "Can't do setegid!\n");
3256 if (PL_statbuf.st_mode & S_ISUID) {
3257 if (PL_statbuf.st_uid != PL_euid)
3259 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
3262 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
3264 #ifdef HAS_SETRESUID
3265 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
3267 PerlProc_setuid(PL_statbuf.st_uid);
3271 if (PerlProc_geteuid() != PL_statbuf.st_uid)
3272 Perl_croak(aTHX_ "Can't do seteuid!\n");
3274 else if (PL_uid) { /* oops, mustn't run as root */
3276 (void)seteuid((Uid_t)PL_uid);
3279 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
3281 #ifdef HAS_SETRESUID
3282 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
3284 PerlProc_setuid((Uid_t)PL_uid);
3288 if (PerlProc_geteuid() != PL_uid)
3289 Perl_croak(aTHX_ "Can't do seteuid!\n");
3292 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
3293 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
3296 else if (PL_preprocess)
3297 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
3298 else if (fdscript >= 0)
3299 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
3301 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
3303 /* We absolutely must clear out any saved ids here, so we */
3304 /* exec the real perl, substituting fd script for scriptname. */
3305 /* (We pass script name as "subdir" of fd, which perl will grok.) */
3306 PerlIO_rewind(PL_rsfp);
3307 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
3308 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
3309 if (!PL_origargv[which])
3310 Perl_croak(aTHX_ "Permission denied");
3311 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
3312 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
3313 #if defined(HAS_FCNTL) && defined(F_SETFD)
3314 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
3317 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
3318 (int)PERL_REVISION, (int)PERL_VERSION,
3319 (int)PERL_SUBVERSION), PL_origargv);/* try again */
3321 Perl_croak(aTHX_ "Can't do setuid\n");
3322 #endif /* IAMSUID */
3324 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
3325 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
3326 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
3327 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3329 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3332 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
3333 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
3334 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
3335 /* not set-id, must be wrapped */
3341 S_find_beginning(pTHX)
3343 register char *s, *s2;
3344 #ifdef MACOS_TRADITIONAL
3348 /* skip forward in input to the real script? */
3351 #ifdef MACOS_TRADITIONAL
3352 /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */
3354 while (PL_doextract || gMacPerl_AlwaysExtract) {
3355 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) {
3356 if (!gMacPerl_AlwaysExtract)
3357 Perl_croak(aTHX_ "No Perl script found in input\n");
3359 if (PL_doextract) /* require explicit override ? */
3360 if (!OverrideExtract(PL_origfilename))
3361 Perl_croak(aTHX_ "User aborted script\n");
3363 PL_doextract = FALSE;
3365 /* Pater peccavi, file does not have #! */
3366 PerlIO_rewind(PL_rsfp);
3371 while (PL_doextract) {
3372 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
3373 Perl_croak(aTHX_ "No Perl script found in input\n");
3376 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) {
3377 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
3378 PL_doextract = FALSE;
3379 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3381 while (*s == ' ' || *s == '\t') s++;
3383 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
3384 if (strnEQ(s2-4,"perl",4))
3386 while ((s = moreswitches(s)))
3389 #ifdef MACOS_TRADITIONAL
3390 /* We are always searching for the #!perl line in MacPerl,
3391 * so if we find it, still keep the line count correct
3392 * by counting lines we already skipped over
3394 for (; maclines > 0 ; maclines--)
3395 PerlIO_ungetc(PL_rsfp, '\n');
3399 /* gMacPerl_AlwaysExtract is false in MPW tool */
3400 } else if (gMacPerl_AlwaysExtract) {
3411 PL_uid = PerlProc_getuid();
3412 PL_euid = PerlProc_geteuid();
3413 PL_gid = PerlProc_getgid();
3414 PL_egid = PerlProc_getegid();
3416 PL_uid |= PL_gid << 16;
3417 PL_euid |= PL_egid << 16;
3419 /* Should not happen: */
3420 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3421 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
3424 /* This is used very early in the lifetime of the program,
3425 * before even the options are parsed, so PL_tainting has
3426 * not been initialized properly. */
3428 Perl_doing_taint(int argc, char *argv[], char *envp[])
3430 #ifndef PERL_IMPLICIT_SYS
3431 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3432 * before we have an interpreter-- and the whole point of this
3433 * function is to be called at such an early stage. If you are on
3434 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3435 * "tainted because running with altered effective ids', you'll
3436 * have to add your own checks somewhere in here. The two most
3437 * known samples of 'implicitness' are Win32 and NetWare, neither
3438 * of which has much of concept of 'uids'. */
3439 int uid = PerlProc_getuid();
3440 int euid = PerlProc_geteuid();
3441 int gid = PerlProc_getgid();
3442 int egid = PerlProc_getegid();
3448 if (uid && (euid != uid || egid != gid))
3450 #endif /* !PERL_IMPLICIT_SYS */
3451 /* This is a really primitive check; environment gets ignored only
3452 * if -T are the first chars together; otherwise one gets
3453 * "Too late" message. */
3454 if ( argc > 1 && argv[1][0] == '-'
3455 && (argv[1][1] == 't' || argv[1][1] == 'T') )
3461 S_forbid_setid(pTHX_ char *s)
3463 if (PL_euid != PL_uid)
3464 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
3465 if (PL_egid != PL_gid)
3466 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
3470 Perl_init_debugger(pTHX)
3472 HV *ostash = PL_curstash;
3474 PL_curstash = PL_debstash;
3475 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV))));
3476 AvREAL_off(PL_dbargs);
3477 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV);
3478 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV);
3479 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV));
3480 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
3481 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV)));
3482 sv_setiv(PL_DBsingle, 0);
3483 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV)));
3484 sv_setiv(PL_DBtrace, 0);
3485 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV)));
3486 sv_setiv(PL_DBsignal, 0);
3487 PL_DBassertion = GvSV((gv_fetchpv("assertion", GV_ADDMULTI, SVt_PV)));
3488 sv_setiv(PL_DBassertion, 0);
3489 PL_curstash = ostash;
3492 #ifndef STRESS_REALLOC
3493 #define REASONABLE(size) (size)
3495 #define REASONABLE(size) (1) /* unreasonable */
3499 Perl_init_stacks(pTHX)
3501 /* start with 128-item stack and 8K cxstack */
3502 PL_curstackinfo = new_stackinfo(REASONABLE(128),
3503 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3504 PL_curstackinfo->si_type = PERLSI_MAIN;
3505 PL_curstack = PL_curstackinfo->si_stack;
3506 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
3508 PL_stack_base = AvARRAY(PL_curstack);
3509 PL_stack_sp = PL_stack_base;
3510 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
3512 New(50,PL_tmps_stack,REASONABLE(128),SV*);
3515 PL_tmps_max = REASONABLE(128);
3517 New(54,PL_markstack,REASONABLE(32),I32);
3518 PL_markstack_ptr = PL_markstack;
3519 PL_markstack_max = PL_markstack + REASONABLE(32);
3523 New(54,PL_scopestack,REASONABLE(32),I32);
3524 PL_scopestack_ix = 0;
3525 PL_scopestack_max = REASONABLE(32);
3527 New(54,PL_savestack,REASONABLE(128),ANY);
3528 PL_savestack_ix = 0;
3529 PL_savestack_max = REASONABLE(128);
3531 New(54,PL_retstack,REASONABLE(16),OP*);
3533 PL_retstack_max = REASONABLE(16);
3541 while (PL_curstackinfo->si_next)
3542 PL_curstackinfo = PL_curstackinfo->si_next;
3543 while (PL_curstackinfo) {
3544 PERL_SI *p = PL_curstackinfo->si_prev;
3545 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3546 Safefree(PL_curstackinfo->si_cxstack);
3547 Safefree(PL_curstackinfo);
3548 PL_curstackinfo = p;
3550 Safefree(PL_tmps_stack);
3551 Safefree(PL_markstack);
3552 Safefree(PL_scopestack);
3553 Safefree(PL_savestack);
3554 Safefree(PL_retstack);
3563 lex_start(PL_linestr);
3565 PL_subname = newSVpvn("main",4);
3569 S_init_predump_symbols(pTHX)
3574 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3575 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3576 GvMULTI_on(PL_stdingv);
3577 io = GvIOp(PL_stdingv);
3578 IoTYPE(io) = IoTYPE_RDONLY;
3579 IoIFP(io) = PerlIO_stdin();
3580 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3582 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3584 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3587 IoTYPE(io) = IoTYPE_WRONLY;
3588 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3590 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3592 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3594 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3595 GvMULTI_on(PL_stderrgv);
3596 io = GvIOp(PL_stderrgv);
3597 IoTYPE(io) = IoTYPE_WRONLY;
3598 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3599 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3601 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3603 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3606 Safefree(PL_osname);
3607 PL_osname = savepv(OSNAME);
3611 Perl_init_argv_symbols(pTHX_ register int argc, register char **argv)
3614 argc--,argv++; /* skip name of script */
3615 if (PL_doswitches) {
3616 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3619 if (argv[0][1] == '-' && !argv[0][2]) {
3623 if ((s = strchr(argv[0], '='))) {
3625 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3628 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3631 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) {
3632 GvMULTI_on(PL_argvgv);
3633 (void)gv_AVadd(PL_argvgv);
3634 av_clear(GvAVn(PL_argvgv));
3635 for (; argc > 0; argc--,argv++) {
3636 SV *sv = newSVpv(argv[0],0);
3637 av_push(GvAVn(PL_argvgv),sv);
3638 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
3639 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
3642 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
3643 (void)sv_utf8_decode(sv);
3648 #ifdef HAS_PROCSELFEXE
3649 /* This is a function so that we don't hold on to MAXPATHLEN
3650 bytes of stack longer than necessary
3653 S_procself_val(pTHX_ SV *sv, char *arg0)
3655 char buf[MAXPATHLEN];
3656 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
3658 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
3659 includes a spurious NUL which will cause $^X to fail in system
3660 or backticks (this will prevent extensions from being built and
3661 many tests from working). readlink is not meant to add a NUL.
3662 Normal readlink works fine.
3664 if (len > 0 && buf[len-1] == '\0') {
3668 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
3669 returning the text "unknown" from the readlink rather than the path
3670 to the executable (or returning an error from the readlink). Any valid
3671 path has a '/' in it somewhere, so use that to validate the result.
3672 See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
3674 if (len > 0 && memchr(buf, '/', len)) {
3675 sv_setpvn(sv,buf,len);
3681 #endif /* HAS_PROCSELFEXE */
3684 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3690 PL_toptarget = NEWSV(0,0);
3691 sv_upgrade(PL_toptarget, SVt_PVFM);
3692 sv_setpvn(PL_toptarget, "", 0);
3693 PL_bodytarget = NEWSV(0,0);
3694 sv_upgrade(PL_bodytarget, SVt_PVFM);
3695 sv_setpvn(PL_bodytarget, "", 0);
3696 PL_formtarget = PL_bodytarget;
3700 init_argv_symbols(argc,argv);
3702 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {
3703 #ifdef MACOS_TRADITIONAL
3704 /* $0 is not majick on a Mac */
3705 sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename));
3707 sv_setpv(GvSV(tmpgv),PL_origfilename);
3708 magicname("0", "0", 1);
3711 if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
3712 #ifdef HAS_PROCSELFEXE
3713 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]);
3716 sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
3718 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3722 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) {
3724 GvMULTI_on(PL_envgv);
3725 hv = GvHVn(PL_envgv);
3726 hv_magic(hv, Nullgv, PERL_MAGIC_env);
3727 #ifdef USE_ENVIRON_ARRAY
3728 /* Note that if the supplied env parameter is actually a copy
3729 of the global environ then it may now point to free'd memory
3730 if the environment has been modified since. To avoid this
3731 problem we treat env==NULL as meaning 'use the default'
3736 # ifdef USE_ITHREADS
3737 && PL_curinterp == aTHX
3741 environ[0] = Nullch;
3744 for (; *env; env++) {
3745 if (!(s = strchr(*env,'=')))
3752 sv = newSVpv(s+1, 0);
3753 (void)hv_store(hv, *env, s - *env, sv, 0);
3757 #endif /* USE_ENVIRON_ARRAY */
3760 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
3761 SvREADONLY_off(GvSV(tmpgv));
3762 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3763 SvREADONLY_on(GvSV(tmpgv));
3765 #ifdef THREADS_HAVE_PIDS
3766 PL_ppid = (IV)getppid();
3769 /* touch @F array to prevent spurious warnings 20020415 MJD */
3771 (void) get_av("main::F", TRUE | GV_ADDMULTI);
3773 /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */
3774 (void) get_av("main::-", TRUE | GV_ADDMULTI);
3775 (void) get_av("main::+", TRUE | GV_ADDMULTI);
3779 S_init_perllib(pTHX)
3784 s = PerlEnv_getenv("PERL5LIB");
3786 incpush(s, TRUE, TRUE, TRUE);
3788 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE);
3790 /* Treat PERL5?LIB as a possible search list logical name -- the
3791 * "natural" VMS idiom for a Unix path string. We allow each
3792 * element to be a set of |-separated directories for compatibility.
3796 if (my_trnlnm("PERL5LIB",buf,0))
3797 do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3799 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE);
3803 /* Use the ~-expanded versions of APPLLIB (undocumented),
3804 ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB
3807 incpush(APPLLIB_EXP, TRUE, TRUE, TRUE);
3811 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE);
3813 #ifdef MACOS_TRADITIONAL
3816 SV * privdir = NEWSV(55, 0);
3817 char * macperl = PerlEnv_getenv("MACPERL");
3822 Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl);
3823 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3824 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3825 Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl);
3826 if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode))
3827 incpush(SvPVX(privdir), TRUE, FALSE, TRUE);
3829 SvREFCNT_dec(privdir);
3832 incpush(":", FALSE, FALSE, TRUE);
3835 # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3838 incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE);
3840 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE);
3844 /* sitearch is always relative to sitelib on Windows for
3845 * DLL-based path intuition to work correctly */
3846 # if !defined(WIN32)
3847 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE);
3853 /* this picks up sitearch as well */
3854 incpush(SITELIB_EXP, TRUE, FALSE, TRUE);
3856 incpush(SITELIB_EXP, FALSE, FALSE, TRUE);
3860 #ifdef SITELIB_STEM /* Search for version-specific dirs below here */
3861 incpush(SITELIB_STEM, FALSE, TRUE, TRUE);
3864 #ifdef PERL_VENDORARCH_EXP
3865 /* vendorarch is always relative to vendorlib on Windows for
3866 * DLL-based path intuition to work correctly */
3867 # if !defined(WIN32)
3868 incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE);
3872 #ifdef PERL_VENDORLIB_EXP
3874 incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */
3876 incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE);
3880 #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */
3881 incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE);
3884 #ifdef PERL_OTHERLIBDIRS
3885 incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE);
3889 incpush(".", FALSE, FALSE, TRUE);
3890 #endif /* MACOS_TRADITIONAL */
3893 #if defined(DOSISH) || defined(EPOC)
3894 # define PERLLIB_SEP ';'
3897 # define PERLLIB_SEP '|'
3899 # if defined(MACOS_TRADITIONAL)
3900 # define PERLLIB_SEP ','
3902 # define PERLLIB_SEP ':'
3906 #ifndef PERLLIB_MANGLE
3907 # define PERLLIB_MANGLE(s,n) (s)
3911 S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep)
3913 SV *subdir = Nullsv;
3918 if (addsubdirs || addoldvers) {
3919 subdir = sv_newmortal();
3922 /* Break at all separators */
3924 SV *libdir = NEWSV(55,0);
3927 /* skip any consecutive separators */
3929 while ( *p == PERLLIB_SEP ) {
3930 /* Uncomment the next line for PATH semantics */
3931 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3936 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3937 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3942 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3943 p = Nullch; /* break out */
3945 #ifdef MACOS_TRADITIONAL
3946 if (!strchr(SvPVX(libdir), ':')) {
3949 sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0));
3951 if (SvPVX(libdir)[SvCUR(libdir)-1] != ':')
3952 sv_catpv(libdir, ":");
3956 * BEFORE pushing libdir onto @INC we may first push version- and
3957 * archname-specific sub-directories.
3959 if (addsubdirs || addoldvers) {
3960 #ifdef PERL_INC_VERSION_LIST
3961 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3962 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3963 const char **incver;
3970 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3972 while (unix[len-1] == '/') len--; /* Cosmetic */
3973 sv_usepvn(libdir,unix,len);
3976 PerlIO_printf(Perl_error_log,
3977 "Failed to unixify @INC element \"%s\"\n",
3981 #ifdef MACOS_TRADITIONAL
3982 #define PERL_AV_SUFFIX_FMT ""
3983 #define PERL_ARCH_FMT "%s:"
3984 #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT
3986 #define PERL_AV_SUFFIX_FMT "/"
3987 #define PERL_ARCH_FMT "/%s"
3988 #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT
3990 /* .../version/archname if -d .../version/archname */
3991 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT,
3993 (int)PERL_REVISION, (int)PERL_VERSION,
3994 (int)PERL_SUBVERSION, ARCHNAME);
3995 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3996 S_ISDIR(tmpstatbuf.st_mode))
3997 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3999 /* .../version if -d .../version */
4000 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir,
4001 (int)PERL_REVISION, (int)PERL_VERSION,
4002 (int)PERL_SUBVERSION);
4003 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4004 S_ISDIR(tmpstatbuf.st_mode))
4005 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4007 /* .../archname if -d .../archname */
4008 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME);
4009 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4010 S_ISDIR(tmpstatbuf.st_mode))
4011 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4014 #ifdef PERL_INC_VERSION_LIST
4016 for (incver = incverlist; *incver; incver++) {
4017 /* .../xxx if -d .../xxx */
4018 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver);
4019 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
4020 S_ISDIR(tmpstatbuf.st_mode))
4021 av_push(GvAVn(PL_incgv), newSVsv(subdir));
4027 /* finally push this lib directory on the end of @INC */
4028 av_push(GvAVn(PL_incgv), libdir);
4032 #ifdef USE_5005THREADS
4033 STATIC struct perl_thread *
4034 S_init_main_thread(pTHX)
4036 #if !defined(PERL_IMPLICIT_CONTEXT)
4037 struct perl_thread *thr;
4041 Newz(53, thr, 1, struct perl_thread);
4042 PL_curcop = &PL_compiling;
4043 thr->interp = PERL_GET_INTERP;
4044 thr->cvcache = newHV();
4045 thr->threadsv = newAV();
4046 /* thr->threadsvp is set when find_threadsv is called */
4047 thr->specific = newAV();
4048 thr->flags = THRf_R_JOINABLE;
4049 MUTEX_INIT(&thr->mutex);
4050 /* Handcraft thrsv similarly to mess_sv */
4051 New(53, PL_thrsv, 1, SV);
4052 Newz(53, xpv, 1, XPV);
4053 SvFLAGS(PL_thrsv) = SVt_PV;
4054 SvANY(PL_thrsv) = (void*)xpv;
4055 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
4056 SvPVX(PL_thrsv) = (char*)thr;
4057 SvCUR_set(PL_thrsv, sizeof(thr));
4058 SvLEN_set(PL_thrsv, sizeof(thr));
4059 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
4060 thr->oursv = PL_thrsv;
4061 PL_chopset = " \n-";
4064 MUTEX_LOCK(&PL_threads_mutex);
4070 MUTEX_UNLOCK(&PL_threads_mutex);
4072 #ifdef HAVE_THREAD_INTERN
4073 Perl_init_thread_intern(thr);
4076 #ifdef SET_THREAD_SELF
4077 SET_THREAD_SELF(thr);
4079 thr->self = pthread_self();
4080 #endif /* SET_THREAD_SELF */
4084 * These must come after the thread self setting
4085 * because sv_setpvn does SvTAINT and the taint
4086 * fields thread selfness being set.
4088 PL_toptarget = NEWSV(0,0);
4089 sv_upgrade(PL_toptarget, SVt_PVFM);
4090 sv_setpvn(PL_toptarget, "", 0);
4091 PL_bodytarget = NEWSV(0,0);
4092 sv_upgrade(PL_bodytarget, SVt_PVFM);
4093 sv_setpvn(PL_bodytarget, "", 0);
4094 PL_formtarget = PL_bodytarget;
4095 thr->errsv = newSVpvn("", 0);
4096 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
4099 PL_peepp = MEMBER_TO_FPTR(Perl_peep);
4100 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
4101 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
4102 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
4103 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
4104 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
4106 PL_reginterp_cnt = 0;
4110 #endif /* USE_5005THREADS */
4113 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
4116 line_t oldline = CopLINE(PL_curcop);
4122 while (AvFILL(paramList) >= 0) {
4123 cv = (CV*)av_shift(paramList);
4125 if (paramList == PL_beginav) {
4126 /* save PL_beginav for compiler */
4127 if (! PL_beginav_save)
4128 PL_beginav_save = newAV();
4129 av_push(PL_beginav_save, (SV*)cv);
4131 else if (paramList == PL_checkav) {
4132 /* save PL_checkav for compiler */
4133 if (! PL_checkav_save)
4134 PL_checkav_save = newAV();
4135 av_push(PL_checkav_save, (SV*)cv);
4140 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4141 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
4147 #ifndef PERL_FLEXIBLE_EXCEPTIONS
4151 (void)SvPV(atsv, len);
4153 PL_curcop = &PL_compiling;
4154 CopLINE_set(PL_curcop, oldline);
4155 if (paramList == PL_beginav)
4156 sv_catpv(atsv, "BEGIN failed--compilation aborted");
4158 Perl_sv_catpvf(aTHX_ atsv,
4159 "%s failed--call queue aborted",
4160 paramList == PL_checkav ? "CHECK"
4161 : paramList == PL_initav ? "INIT"
4163 while (PL_scopestack_ix > oldscope)
4166 Perl_croak(aTHX_ "%"SVf"", atsv);
4173 /* my_exit() was called */
4174 while (PL_scopestack_ix > oldscope)
4177 PL_curstash = PL_defstash;
4178 PL_curcop = &PL_compiling;
4179 CopLINE_set(PL_curcop, oldline);
4181 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
4182 if (paramList == PL_beginav)
4183 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
4185 Perl_croak(aTHX_ "%s failed--call queue aborted",
4186 paramList == PL_checkav ? "CHECK"
4187 : paramList == PL_initav ? "INIT"
4194 PL_curcop = &PL_compiling;
4195 CopLINE_set(PL_curcop, oldline);
4198 PerlIO_printf(Perl_error_log, "panic: restartop\n");
4206 #ifdef PERL_FLEXIBLE_EXCEPTIONS
4208 S_vcall_list_body(pTHX_ va_list args)
4210 CV *cv = va_arg(args, CV*);
4211 return call_list_body(cv);
4216 S_call_list_body(pTHX_ CV *cv)
4218 PUSHMARK(PL_stack_sp);
4219 call_sv((SV*)cv, G_EVAL|G_DISCARD);
4224 Perl_my_exit(pTHX_ U32 status)
4226 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
4227 thr, (unsigned long) status));
4236 STATUS_NATIVE_SET(status);
4243 Perl_my_failure_exit(pTHX)
4246 if (vaxc$errno & 1) {
4247 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
4248 STATUS_NATIVE_SET(44);
4251 if (!vaxc$errno && errno) /* unlikely */
4252 STATUS_NATIVE_SET(44);
4254 STATUS_NATIVE_SET(vaxc$errno);
4259 STATUS_POSIX_SET(errno);
4261 exitstatus = STATUS_POSIX >> 8;
4262 if (exitstatus & 255)
4263 STATUS_POSIX_SET(exitstatus);
4265 STATUS_POSIX_SET(255);
4272 S_my_exit_jump(pTHX)
4274 register PERL_CONTEXT *cx;
4279 SvREFCNT_dec(PL_e_script);
4280 PL_e_script = Nullsv;
4283 POPSTACK_TO(PL_mainstack);
4284 if (cxstack_ix >= 0) {
4287 POPBLOCK(cx,PL_curpm);
4295 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
4298 p = SvPVX(PL_e_script);
4299 nl = strchr(p, '\n');
4300 nl = (nl) ? nl+1 : SvEND(PL_e_script);
4302 filter_del(read_e_script);
4305 sv_catpvn(buf_sv, p, nl-p);
4306 sv_chop(PL_e_script, nl);