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gv.c: Remove mro_method_changed_in() from gv_init
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4b88f280 1#line 2 "perl.c"
a0d0e21e
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2/* perl.c
3 *
737f4459 4 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
2eee27d7 5 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
010d7370 6 * by Larry Wall and others
a687059c 7 *
352d5a3a
LW
8 * You may distribute under the terms of either the GNU General Public
9 * License or the Artistic License, as specified in the README file.
a687059c 10 *
8d063cd8
LW
11 */
12
a0d0e21e 13/*
4ac71550
TC
14 * A ship then new they built for him
15 * of mithril and of elven-glass
cdad3b53 16 * --from Bilbo's song of Eärendil
4ac71550
TC
17 *
18 * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"]
a0d0e21e 19 */
45d8adaa 20
166f8a29
DM
21/* This file contains the top-level functions that are used to create, use
22 * and destroy a perl interpreter, plus the functions used by XS code to
23 * call back into perl. Note that it does not contain the actual main()
ddfa107c 24 * function of the interpreter; that can be found in perlmain.c
166f8a29
DM
25 */
26
c44493f1 27#if defined(PERL_IS_MINIPERL) && !defined(USE_SITECUSTOMIZE)
43c0c913
NC
28# define USE_SITECUSTOMIZE
29#endif
30
378cc40b 31#include "EXTERN.h"
864dbfa3 32#define PERL_IN_PERL_C
378cc40b 33#include "perl.h"
e3321bb0 34#include "patchlevel.h" /* for local_patches */
4a5df386 35#include "XSUB.h"
378cc40b 36
011f1a1a
JH
37#ifdef NETWARE
38#include "nwutil.h"
011f1a1a
JH
39#endif
40
2982a345
NC
41#ifdef USE_KERN_PROC_PATHNAME
42# include <sys/sysctl.h>
43#endif
44
ae60cb46
NC
45#ifdef USE_NSGETEXECUTABLEPATH
46# include <mach-o/dyld.h>
47#endif
48
2aa47728 49#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
bf357333
NC
50# ifdef I_SYSUIO
51# include <sys/uio.h>
52# endif
53
54union control_un {
55 struct cmsghdr cm;
56 char control[CMSG_SPACE(sizeof(int))];
57};
58
2aa47728
NC
59#endif
60
5311654c
JH
61#ifdef __BEOS__
62# define HZ 1000000
63#endif
64
65#ifndef HZ
66# ifdef CLK_TCK
67# define HZ CLK_TCK
68# else
69# define HZ 60
70# endif
71#endif
72
7114a2d2 73#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
20ce7b12 74char *getenv (char *); /* Usually in <stdlib.h> */
54310121
PP
75#endif
76
acfe0abc 77static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
0cb96387 78
cc69b689 79#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
b24bc095 80# define validate_suid(rsfp) NOOP
cc69b689 81#else
b24bc095 82# define validate_suid(rsfp) S_validate_suid(aTHX_ rsfp)
a687059c 83#endif
8d063cd8 84
d6f07c05
AL
85#define CALL_BODY_SUB(myop) \
86 if (PL_op == (myop)) \
139d0ce6 87 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
d6f07c05
AL
88 if (PL_op) \
89 CALLRUNOPS(aTHX);
90
91#define CALL_LIST_BODY(cv) \
92 PUSHMARK(PL_stack_sp); \
9a8aa25b 93 call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD|G_VOID);
d6f07c05 94
e6827a76 95static void
daa7d858 96S_init_tls_and_interp(PerlInterpreter *my_perl)
e6827a76 97{
27da23d5 98 dVAR;
e6827a76
NC
99 if (!PL_curinterp) {
100 PERL_SET_INTERP(my_perl);
3db8f154 101#if defined(USE_ITHREADS)
e6827a76
NC
102 INIT_THREADS;
103 ALLOC_THREAD_KEY;
104 PERL_SET_THX(my_perl);
105 OP_REFCNT_INIT;
e8570548 106 OP_CHECK_MUTEX_INIT;
71ad1b0c 107 HINTS_REFCNT_INIT;
e6827a76 108 MUTEX_INIT(&PL_dollarzero_mutex);
016af4f1
DM
109 MUTEX_INIT(&PL_my_ctx_mutex);
110# endif
e6827a76 111 }
c0bce9aa
NC
112#if defined(USE_ITHREADS)
113 else
114#else
115 /* This always happens for non-ithreads */
116#endif
117 {
e6827a76
NC
118 PERL_SET_THX(my_perl);
119 }
120}
06d86050 121
cbec8ebe
DM
122
123/* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */
124
125void
126Perl_sys_init(int* argc, char*** argv)
127{
4fc0badb 128 dVAR;
7918f24d
NC
129
130 PERL_ARGS_ASSERT_SYS_INIT;
131
cbec8ebe
DM
132 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
133 PERL_UNUSED_ARG(argv);
134 PERL_SYS_INIT_BODY(argc, argv);
135}
136
137void
138Perl_sys_init3(int* argc, char*** argv, char*** env)
139{
4fc0badb 140 dVAR;
7918f24d
NC
141
142 PERL_ARGS_ASSERT_SYS_INIT3;
143
cbec8ebe
DM
144 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
145 PERL_UNUSED_ARG(argv);
146 PERL_UNUSED_ARG(env);
147 PERL_SYS_INIT3_BODY(argc, argv, env);
148}
149
150void
d0820ef1 151Perl_sys_term()
cbec8ebe 152{
4fc0badb 153 dVAR;
bf81751b
DM
154 if (!PL_veto_cleanup) {
155 PERL_SYS_TERM_BODY();
156 }
cbec8ebe
DM
157}
158
159
32e30700
GS
160#ifdef PERL_IMPLICIT_SYS
161PerlInterpreter *
7766f137
GS
162perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
163 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
32e30700
GS
164 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
165 struct IPerlDir* ipD, struct IPerlSock* ipS,
166 struct IPerlProc* ipP)
167{
168 PerlInterpreter *my_perl;
7918f24d
NC
169
170 PERL_ARGS_ASSERT_PERL_ALLOC_USING;
171
9f653bb5 172 /* Newx() needs interpreter, so call malloc() instead */
32e30700 173 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
e6827a76 174 S_init_tls_and_interp(my_perl);
32e30700
GS
175 Zero(my_perl, 1, PerlInterpreter);
176 PL_Mem = ipM;
7766f137
GS
177 PL_MemShared = ipMS;
178 PL_MemParse = ipMP;
32e30700
GS
179 PL_Env = ipE;
180 PL_StdIO = ipStd;
181 PL_LIO = ipLIO;
182 PL_Dir = ipD;
183 PL_Sock = ipS;
184 PL_Proc = ipP;
7cb608b5 185 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
7766f137 186
32e30700
GS
187 return my_perl;
188}
189#else
954c1994
GS
190
191/*
ccfc67b7
JH
192=head1 Embedding Functions
193
954c1994
GS
194=for apidoc perl_alloc
195
196Allocates a new Perl interpreter. See L<perlembed>.
197
198=cut
199*/
200
93a17b20 201PerlInterpreter *
cea2e8a9 202perl_alloc(void)
79072805 203{
cea2e8a9 204 PerlInterpreter *my_perl;
79072805 205
9f653bb5 206 /* Newx() needs interpreter, so call malloc() instead */
e8ee3774 207 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
ba869deb 208
e6827a76 209 S_init_tls_and_interp(my_perl);
7cb608b5 210#ifndef PERL_TRACK_MEMPOOL
07409e01 211 return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter);
7cb608b5
NC
212#else
213 Zero(my_perl, 1, PerlInterpreter);
214 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
215 return my_perl;
216#endif
79072805 217}
32e30700 218#endif /* PERL_IMPLICIT_SYS */
79072805 219
954c1994
GS
220/*
221=for apidoc perl_construct
222
223Initializes a new Perl interpreter. See L<perlembed>.
224
225=cut
226*/
227
79072805 228void
0cb96387 229perl_construct(pTHXx)
79072805 230{
27da23d5 231 dVAR;
7918f24d
NC
232
233 PERL_ARGS_ASSERT_PERL_CONSTRUCT;
234
8990e307 235#ifdef MULTIPLICITY
54aff467 236 init_interp();
ac27b0f5 237 PL_perl_destruct_level = 1;
54aff467 238#else
7918f24d 239 PERL_UNUSED_ARG(my_perl);
54aff467
GS
240 if (PL_perl_destruct_level > 0)
241 init_interp();
242#endif
34caed6d
DM
243 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
244
34caed6d
DM
245 /* set read-only and try to insure than we wont see REFCNT==0
246 very often */
247
248 SvREADONLY_on(&PL_sv_undef);
249 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
250
251 sv_setpv(&PL_sv_no,PL_No);
252 /* value lookup in void context - happens to have the side effect
a43d94f2
NC
253 of caching the numeric forms. However, as &PL_sv_no doesn't contain
254 a string that is a valid numer, we have to turn the public flags by
255 hand: */
34caed6d 256 SvNV(&PL_sv_no);
c1939273 257 SvIV(&PL_sv_no);
a43d94f2
NC
258 SvIOK_on(&PL_sv_no);
259 SvNOK_on(&PL_sv_no);
34caed6d
DM
260 SvREADONLY_on(&PL_sv_no);
261 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
262
263 sv_setpv(&PL_sv_yes,PL_Yes);
34caed6d 264 SvNV(&PL_sv_yes);
c1939273 265 SvIV(&PL_sv_yes);
34caed6d
DM
266 SvREADONLY_on(&PL_sv_yes);
267 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
268
269 SvREADONLY_on(&PL_sv_placeholder);
270 SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2;
271
272 PL_sighandlerp = (Sighandler_t) Perl_sighandler;
ca0c25f6 273#ifdef PERL_USES_PL_PIDSTATUS
34caed6d 274 PL_pidstatus = newHV();
ca0c25f6 275#endif
79072805 276
396482e1 277 PL_rs = newSVpvs("\n");
dc92893f 278
cea2e8a9 279 init_stacks();
79072805 280
748a9306 281 init_ids();
a5f75d66 282
312caa8e 283 JMPENV_BOOTSTRAP;
f86702cc
PP
284 STATUS_ALL_SUCCESS;
285
0672f40e 286 init_i18nl10n(1);
36477c24 287 SET_NUMERIC_STANDARD();
0b5b802d 288
ab821d7f 289#if defined(LOCAL_PATCH_COUNT)
3280af22 290 PL_localpatches = local_patches; /* For possible -v */
ab821d7f
PP
291#endif
292
52853b95
GS
293#ifdef HAVE_INTERP_INTERN
294 sys_intern_init();
295#endif
296
3a1ee7e8 297 PerlIO_init(aTHX); /* Hook to IO system */
760ac839 298
3280af22
NIS
299 PL_fdpid = newAV(); /* for remembering popen pids by fd */
300 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
396482e1 301 PL_errors = newSVpvs("");
76f68e9b
MHM
302 sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
303 sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
304 sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
1fcf4c12 305#ifdef USE_ITHREADS
402d2eb1
NC
306 /* First entry is a list of empty elements. It needs to be initialised
307 else all hell breaks loose in S_find_uninit_var(). */
308 Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs(""));
13137afc 309 PL_regex_pad = AvARRAY(PL_regex_padav);
d4d03940 310 Newxz(PL_stashpad, PL_stashpadmax, HV *);
1fcf4c12 311#endif
e5dd39fc 312#ifdef USE_REENTRANT_API
59bd0823 313 Perl_reentrant_init(aTHX);
e5dd39fc 314#endif
3d47000e
AB
315
316 /* Note that strtab is a rather special HV. Assumptions are made
317 about not iterating on it, and not adding tie magic to it.
318 It is properly deallocated in perl_destruct() */
319 PL_strtab = newHV();
320
3d47000e
AB
321 HvSHAREKEYS_off(PL_strtab); /* mandatory */
322 hv_ksplit(PL_strtab, 512);
323
0631ea03
AB
324#if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
325 _dyld_lookup_and_bind
326 ("__environ", (unsigned long *) &environ_pointer, NULL);
327#endif /* environ */
328
2f42fcb0
JH
329#ifndef PERL_MICRO
330# ifdef USE_ENVIRON_ARRAY
0631ea03 331 PL_origenviron = environ;
2f42fcb0 332# endif
0631ea03
AB
333#endif
334
5311654c 335 /* Use sysconf(_SC_CLK_TCK) if available, if not
dbc1d986 336 * available or if the sysconf() fails, use the HZ.
27da23d5
JH
337 * BeOS has those, but returns the wrong value.
338 * The HZ if not originally defined has been by now
339 * been defined as CLK_TCK, if available. */
dbc1d986 340#if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__)
5311654c
JH
341 PL_clocktick = sysconf(_SC_CLK_TCK);
342 if (PL_clocktick <= 0)
343#endif
344 PL_clocktick = HZ;
345
081fc587
AB
346 PL_stashcache = newHV();
347
e8e3635e 348 PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
1e8125c6 349 PL_apiversion = newSVpvs("v" PERL_API_VERSION_STRING);
d7aa5382 350
27da23d5
JH
351#ifdef HAS_MMAP
352 if (!PL_mmap_page_size) {
353#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE))
354 {
355 SETERRNO(0, SS_NORMAL);
356# ifdef _SC_PAGESIZE
357 PL_mmap_page_size = sysconf(_SC_PAGESIZE);
358# else
359 PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE);
360# endif
361 if ((long) PL_mmap_page_size < 0) {
362 if (errno) {
44f8325f 363 SV * const error = ERRSV;
d4c19fe8 364 SvUPGRADE(error, SVt_PV);
0510663f 365 Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
27da23d5
JH
366 }
367 else
368 Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
369 }
370 }
371#else
372# ifdef HAS_GETPAGESIZE
373 PL_mmap_page_size = getpagesize();
374# else
375# if defined(I_SYS_PARAM) && defined(PAGESIZE)
376 PL_mmap_page_size = PAGESIZE; /* compiletime, bad */
377# endif
378# endif
379#endif
380 if (PL_mmap_page_size <= 0)
381 Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
382 (IV) PL_mmap_page_size);
383 }
384#endif /* HAS_MMAP */
385
386#if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
387 PL_timesbase.tms_utime = 0;
388 PL_timesbase.tms_stime = 0;
389 PL_timesbase.tms_cutime = 0;
390 PL_timesbase.tms_cstime = 0;
391#endif
392
7d113631
NC
393 PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME));
394
a3e6e81e 395 PL_registered_mros = newHV();
9e169432
NC
396 /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
397 HvMAX(PL_registered_mros) = 0;
a3e6e81e 398
8990e307 399 ENTER;
79072805
LW
400}
401
954c1994 402/*
62375a60
NIS
403=for apidoc nothreadhook
404
405Stub that provides thread hook for perl_destruct when there are
406no threads.
407
408=cut
409*/
410
411int
4e9e3734 412Perl_nothreadhook(pTHX)
62375a60 413{
96a5add6 414 PERL_UNUSED_CONTEXT;
62375a60
NIS
415 return 0;
416}
417
41e4abd8
NC
418#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
419void
420Perl_dump_sv_child(pTHX_ SV *sv)
421{
422 ssize_t got;
bf357333
NC
423 const int sock = PL_dumper_fd;
424 const int debug_fd = PerlIO_fileno(Perl_debug_log);
bf357333
NC
425 union control_un control;
426 struct msghdr msg;
808ad2d0 427 struct iovec vec[2];
bf357333 428 struct cmsghdr *cmptr;
808ad2d0
NC
429 int returned_errno;
430 unsigned char buffer[256];
41e4abd8 431
7918f24d
NC
432 PERL_ARGS_ASSERT_DUMP_SV_CHILD;
433
bf357333 434 if(sock == -1 || debug_fd == -1)
41e4abd8
NC
435 return;
436
437 PerlIO_flush(Perl_debug_log);
438
bf357333
NC
439 /* All these shenanigans are to pass a file descriptor over to our child for
440 it to dump out to. We can't let it hold open the file descriptor when it
441 forks, as the file descriptor it will dump to can turn out to be one end
442 of pipe that some other process will wait on for EOF. (So as it would
b293a5f8 443 be open, the wait would be forever.) */
bf357333
NC
444
445 msg.msg_control = control.control;
446 msg.msg_controllen = sizeof(control.control);
447 /* We're a connected socket so we don't need a destination */
448 msg.msg_name = NULL;
449 msg.msg_namelen = 0;
450 msg.msg_iov = vec;
808ad2d0 451 msg.msg_iovlen = 1;
bf357333
NC
452
453 cmptr = CMSG_FIRSTHDR(&msg);
454 cmptr->cmsg_len = CMSG_LEN(sizeof(int));
455 cmptr->cmsg_level = SOL_SOCKET;
456 cmptr->cmsg_type = SCM_RIGHTS;
457 *((int *)CMSG_DATA(cmptr)) = 1;
458
459 vec[0].iov_base = (void*)&sv;
460 vec[0].iov_len = sizeof(sv);
461 got = sendmsg(sock, &msg, 0);
41e4abd8
NC
462
463 if(got < 0) {
bf357333 464 perror("Debug leaking scalars parent sendmsg failed");
41e4abd8
NC
465 abort();
466 }
bf357333
NC
467 if(got < sizeof(sv)) {
468 perror("Debug leaking scalars parent short sendmsg");
41e4abd8
NC
469 abort();
470 }
471
808ad2d0
NC
472 /* Return protocol is
473 int: errno value
474 unsigned char: length of location string (0 for empty)
475 unsigned char*: string (not terminated)
476 */
477 vec[0].iov_base = (void*)&returned_errno;
478 vec[0].iov_len = sizeof(returned_errno);
479 vec[1].iov_base = buffer;
480 vec[1].iov_len = 1;
481
482 got = readv(sock, vec, 2);
41e4abd8
NC
483
484 if(got < 0) {
485 perror("Debug leaking scalars parent read failed");
808ad2d0 486 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
487 abort();
488 }
808ad2d0 489 if(got < sizeof(returned_errno) + 1) {
41e4abd8 490 perror("Debug leaking scalars parent short read");
808ad2d0 491 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
492 abort();
493 }
494
808ad2d0
NC
495 if (*buffer) {
496 got = read(sock, buffer + 1, *buffer);
497 if(got < 0) {
498 perror("Debug leaking scalars parent read 2 failed");
499 PerlIO_flush(PerlIO_stderr());
500 abort();
501 }
502
503 if(got < *buffer) {
504 perror("Debug leaking scalars parent short read 2");
505 PerlIO_flush(PerlIO_stderr());
506 abort();
507 }
508 }
509
510 if (returned_errno || *buffer) {
511 Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno"
512 " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1,
513 returned_errno, strerror(returned_errno));
41e4abd8
NC
514 }
515}
516#endif
517
62375a60 518/*
954c1994
GS
519=for apidoc perl_destruct
520
521Shuts down a Perl interpreter. See L<perlembed>.
522
523=cut
524*/
525
31d77e54 526int
0cb96387 527perl_destruct(pTHXx)
79072805 528{
27da23d5 529 dVAR;
be2ea8ed 530 VOL signed char destruct_level; /* see possible values in intrpvar.h */
a0d0e21e 531 HV *hv;
2aa47728 532#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
2aa47728
NC
533 pid_t child;
534#endif
8990e307 535
7918f24d
NC
536 PERL_ARGS_ASSERT_PERL_DESTRUCT;
537#ifndef MULTIPLICITY
ed6c66dd 538 PERL_UNUSED_ARG(my_perl);
7918f24d 539#endif
9d4ba2ae 540
3d22c4f0
GG
541 assert(PL_scopestack_ix == 1);
542
7766f137
GS
543 /* wait for all pseudo-forked children to finish */
544 PERL_WAIT_FOR_CHILDREN;
545
3280af22 546 destruct_level = PL_perl_destruct_level;
4633a7c4
LW
547#ifdef DEBUGGING
548 {
9d4ba2ae
AL
549 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
550 if (s) {
e1ec3a88 551 const int i = atoi(s);
5f05dabc
PP
552 if (destruct_level < i)
553 destruct_level = i;
554 }
4633a7c4
LW
555 }
556#endif
557
27da23d5 558 if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
f3faeb53
AB
559 dJMPENV;
560 int x = 0;
561
562 JMPENV_PUSH(x);
1b6737cc 563 PERL_UNUSED_VAR(x);
9ebf26ad 564 if (PL_endav && !PL_minus_c) {
ca7b837b 565 PERL_SET_PHASE(PERL_PHASE_END);
f3faeb53 566 call_list(PL_scopestack_ix, PL_endav);
9ebf26ad 567 }
f3faeb53 568 JMPENV_POP;
26f423df 569 }
f3faeb53 570 LEAVE;
a0d0e21e 571 FREETMPS;
3d22c4f0 572 assert(PL_scopestack_ix == 0);
a0d0e21e 573
e00b64d4 574 /* Need to flush since END blocks can produce output */
f13a2bc0 575 my_fflush_all();
e00b64d4 576
16c91539 577 if (PL_threadhook(aTHX)) {
62375a60 578 /* Threads hook has vetoed further cleanup */
c301d606 579 PL_veto_cleanup = TRUE;
37038d91 580 return STATUS_EXIT;
62375a60
NIS
581 }
582
2aa47728
NC
583#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
584 if (destruct_level != 0) {
585 /* Fork here to create a child. Our child's job is to preserve the
586 state of scalars prior to destruction, so that we can instruct it
587 to dump any scalars that we later find have leaked.
588 There's no subtlety in this code - it assumes POSIX, and it doesn't
589 fail gracefully */
590 int fd[2];
591
592 if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
593 perror("Debug leaking scalars socketpair failed");
594 abort();
595 }
596
597 child = fork();
598 if(child == -1) {
599 perror("Debug leaking scalars fork failed");
600 abort();
601 }
602 if (!child) {
603 /* We are the child */
3125a5a4
NC
604 const int sock = fd[1];
605 const int debug_fd = PerlIO_fileno(Perl_debug_log);
606 int f;
808ad2d0
NC
607 const char *where;
608 /* Our success message is an integer 0, and a char 0 */
b61433a9 609 static const char success[sizeof(int) + 1] = {0};
3125a5a4 610
2aa47728 611 close(fd[0]);
2aa47728 612
3125a5a4
NC
613 /* We need to close all other file descriptors otherwise we end up
614 with interesting hangs, where the parent closes its end of a
615 pipe, and sits waiting for (another) child to terminate. Only
616 that child never terminates, because it never gets EOF, because
bf357333
NC
617 we also have the far end of the pipe open. We even need to
618 close the debugging fd, because sometimes it happens to be one
619 end of a pipe, and a process is waiting on the other end for
620 EOF. Normally it would be closed at some point earlier in
621 destruction, but if we happen to cause the pipe to remain open,
622 EOF never occurs, and we get an infinite hang. Hence all the
623 games to pass in a file descriptor if it's actually needed. */
3125a5a4
NC
624
625 f = sysconf(_SC_OPEN_MAX);
626 if(f < 0) {
808ad2d0
NC
627 where = "sysconf failed";
628 goto abort;
3125a5a4
NC
629 }
630 while (f--) {
631 if (f == sock)
632 continue;
3125a5a4
NC
633 close(f);
634 }
635
2aa47728
NC
636 while (1) {
637 SV *target;
bf357333
NC
638 union control_un control;
639 struct msghdr msg;
640 struct iovec vec[1];
641 struct cmsghdr *cmptr;
642 ssize_t got;
643 int got_fd;
644
645 msg.msg_control = control.control;
646 msg.msg_controllen = sizeof(control.control);
647 /* We're a connected socket so we don't need a source */
648 msg.msg_name = NULL;
649 msg.msg_namelen = 0;
650 msg.msg_iov = vec;
651 msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]);
652
653 vec[0].iov_base = (void*)&target;
654 vec[0].iov_len = sizeof(target);
655
656 got = recvmsg(sock, &msg, 0);
2aa47728
NC
657
658 if(got == 0)
659 break;
660 if(got < 0) {
808ad2d0
NC
661 where = "recv failed";
662 goto abort;
2aa47728
NC
663 }
664 if(got < sizeof(target)) {
808ad2d0
NC
665 where = "short recv";
666 goto abort;
2aa47728 667 }
bf357333 668
808ad2d0
NC
669 if(!(cmptr = CMSG_FIRSTHDR(&msg))) {
670 where = "no cmsg";
671 goto abort;
672 }
673 if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) {
674 where = "wrong cmsg_len";
675 goto abort;
676 }
677 if(cmptr->cmsg_level != SOL_SOCKET) {
678 where = "wrong cmsg_level";
679 goto abort;
680 }
681 if(cmptr->cmsg_type != SCM_RIGHTS) {
682 where = "wrong cmsg_type";
683 goto abort;
684 }
bf357333
NC
685
686 got_fd = *(int*)CMSG_DATA(cmptr);
687 /* For our last little bit of trickery, put the file descriptor
688 back into Perl_debug_log, as if we never actually closed it
689 */
808ad2d0
NC
690 if(got_fd != debug_fd) {
691 if (dup2(got_fd, debug_fd) == -1) {
692 where = "dup2";
693 goto abort;
694 }
695 }
2aa47728 696 sv_dump(target);
bf357333 697
2aa47728
NC
698 PerlIO_flush(Perl_debug_log);
699
808ad2d0 700 got = write(sock, &success, sizeof(success));
2aa47728
NC
701
702 if(got < 0) {
808ad2d0
NC
703 where = "write failed";
704 goto abort;
2aa47728 705 }
808ad2d0
NC
706 if(got < sizeof(success)) {
707 where = "short write";
708 goto abort;
2aa47728
NC
709 }
710 }
711 _exit(0);
808ad2d0
NC
712 abort:
713 {
714 int send_errno = errno;
715 unsigned char length = (unsigned char) strlen(where);
716 struct iovec failure[3] = {
717 {(void*)&send_errno, sizeof(send_errno)},
718 {&length, 1},
719 {(void*)where, length}
720 };
721 int got = writev(sock, failure, 3);
722 /* Bad news travels fast. Faster than data. We'll get a SIGPIPE
723 in the parent if we try to read from the socketpair after the
724 child has exited, even if there was data to read.
725 So sleep a bit to give the parent a fighting chance of
726 reading the data. */
727 sleep(2);
728 _exit((got == -1) ? errno : 0);
729 }
bf357333 730 /* End of child. */
2aa47728 731 }
41e4abd8 732 PL_dumper_fd = fd[0];
2aa47728
NC
733 close(fd[1]);
734 }
735#endif
736
ff0cee69
PP
737 /* We must account for everything. */
738
739 /* Destroy the main CV and syntax tree */
17fbfdf6
NC
740 /* Do this now, because destroying ops can cause new SVs to be generated
741 in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they
742 PL_curcop to point to a valid op from which the filename structure
743 member is copied. */
744 PL_curcop = &PL_compiling;
3280af22 745 if (PL_main_root) {
4e380990
DM
746 /* ensure comppad/curpad to refer to main's pad */
747 if (CvPADLIST(PL_main_cv)) {
748 PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1);
749 }
3280af22 750 op_free(PL_main_root);
5f66b61c 751 PL_main_root = NULL;
a0d0e21e 752 }
5f66b61c 753 PL_main_start = NULL;
aac9d523
DM
754 /* note that PL_main_cv isn't usually actually freed at this point,
755 * due to the CvOUTSIDE refs from subs compiled within it. It will
756 * get freed once all the subs are freed in sv_clean_all(), for
757 * destruct_level > 0 */
3280af22 758 SvREFCNT_dec(PL_main_cv);
601f1833 759 PL_main_cv = NULL;
ca7b837b 760 PERL_SET_PHASE(PERL_PHASE_DESTRUCT);
ff0cee69 761
13621cfb
NIS
762 /* Tell PerlIO we are about to tear things apart in case
763 we have layers which are using resources that should
764 be cleaned up now.
765 */
766
767 PerlIO_destruct(aTHX);
768
3280af22 769 if (PL_sv_objcount) {
a0d0e21e
LW
770 /*
771 * Try to destruct global references. We do this first so that the
772 * destructors and destructees still exist. Some sv's might remain.
773 * Non-referenced objects are on their own.
774 */
a0d0e21e 775 sv_clean_objs();
bf9cdc68 776 PL_sv_objcount = 0;
8990e307
LW
777 }
778
5cd24f17 779 /* unhook hooks which will soon be, or use, destroyed data */
3280af22 780 SvREFCNT_dec(PL_warnhook);
a0714e2c 781 PL_warnhook = NULL;
3280af22 782 SvREFCNT_dec(PL_diehook);
a0714e2c 783 PL_diehook = NULL;
5cd24f17 784
4b556e6c 785 /* call exit list functions */
3280af22 786 while (PL_exitlistlen-- > 0)
acfe0abc 787 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
4b556e6c 788
3280af22 789 Safefree(PL_exitlist);
4b556e6c 790
1c4916e5
CB
791 PL_exitlist = NULL;
792 PL_exitlistlen = 0;
793
a3e6e81e
NC
794 SvREFCNT_dec(PL_registered_mros);
795
551a8b83 796 /* jettison our possibly duplicated environment */
4b647fb0
DM
797 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
798 * so we certainly shouldn't free it here
799 */
2f42fcb0 800#ifndef PERL_MICRO
4b647fb0 801#if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
50acdf95 802 if (environ != PL_origenviron && !PL_use_safe_putenv
4efc5df6
GS
803#ifdef USE_ITHREADS
804 /* only main thread can free environ[0] contents */
805 && PL_curinterp == aTHX
806#endif
807 )
808 {
551a8b83
JH
809 I32 i;
810
811 for (i = 0; environ[i]; i++)
4b420006 812 safesysfree(environ[i]);
0631ea03 813
4b420006
JH
814 /* Must use safesysfree() when working with environ. */
815 safesysfree(environ);
551a8b83
JH
816
817 environ = PL_origenviron;
818 }
819#endif
2f42fcb0 820#endif /* !PERL_MICRO */
551a8b83 821
30985c42
JH
822 if (destruct_level == 0) {
823
824 DEBUG_P(debprofdump());
825
826#if defined(PERLIO_LAYERS)
827 /* No more IO - including error messages ! */
828 PerlIO_cleanup(aTHX);
829#endif
830
831 CopFILE_free(&PL_compiling);
30985c42
JH
832
833 /* The exit() function will do everything that needs doing. */
834 return STATUS_EXIT;
835 }
836
5f8cb046
DM
837#ifdef USE_ITHREADS
838 /* the syntax tree is shared between clones
839 * so op_free(PL_main_root) only ReREFCNT_dec's
840 * REGEXPs in the parent interpreter
841 * we need to manually ReREFCNT_dec for the clones
842 */
0547a729
DM
843 {
844 I32 i = AvFILLp(PL_regex_padav);
845 SV **ary = AvARRAY(PL_regex_padav);
846
847 for (; i; i--) {
848 SvREFCNT_dec(ary[i]);
849 ary[i] = &PL_sv_undef;
850 }
851 }
d4d03940 852 Safefree(PL_stashpad);
5f8cb046
DM
853#endif
854
0547a729 855
ad64d0ec 856 SvREFCNT_dec(MUTABLE_SV(PL_stashcache));
081fc587
AB
857 PL_stashcache = NULL;
858
5f05dabc
PP
859 /* loosen bonds of global variables */
860
2f9285f8
DM
861 /* XXX can PL_parser still be non-null here? */
862 if(PL_parser && PL_parser->rsfp) {
863 (void)PerlIO_close(PL_parser->rsfp);
864 PL_parser->rsfp = NULL;
8ebc5c01
PP
865 }
866
84386e14
RGS
867 if (PL_minus_F) {
868 Safefree(PL_splitstr);
869 PL_splitstr = NULL;
870 }
871
8ebc5c01 872 /* switches */
3280af22
NIS
873 PL_minus_n = FALSE;
874 PL_minus_p = FALSE;
875 PL_minus_l = FALSE;
876 PL_minus_a = FALSE;
877 PL_minus_F = FALSE;
878 PL_doswitches = FALSE;
599cee73 879 PL_dowarn = G_WARN_OFF;
3280af22 880 PL_sawampersand = FALSE; /* must save all match strings */
3280af22
NIS
881 PL_unsafe = FALSE;
882
883 Safefree(PL_inplace);
bd61b366 884 PL_inplace = NULL;
a7cb1f99 885 SvREFCNT_dec(PL_patchlevel);
1e8125c6 886 SvREFCNT_dec(PL_apiversion);
3280af22
NIS
887
888 if (PL_e_script) {
889 SvREFCNT_dec(PL_e_script);
a0714e2c 890 PL_e_script = NULL;
8ebc5c01
PP
891 }
892
bf9cdc68
RG
893 PL_perldb = 0;
894
8ebc5c01
PP
895 /* magical thingies */
896
e23d9e2f
CS
897 SvREFCNT_dec(PL_ofsgv); /* *, */
898 PL_ofsgv = NULL;
5f05dabc 899
7889fe52 900 SvREFCNT_dec(PL_ors_sv); /* $\ */
a0714e2c 901 PL_ors_sv = NULL;
8ebc5c01 902
3280af22 903 SvREFCNT_dec(PL_rs); /* $/ */
a0714e2c 904 PL_rs = NULL;
dc92893f 905
d33b2eba 906 Safefree(PL_osname); /* $^O */
bd61b366 907 PL_osname = NULL;
5f05dabc 908
3280af22 909 SvREFCNT_dec(PL_statname);
a0714e2c
SS
910 PL_statname = NULL;
911 PL_statgv = NULL;
5f05dabc 912
8ebc5c01
PP
913 /* defgv, aka *_ should be taken care of elsewhere */
914
7d5ea4e7
GS
915 /* float buffer */
916 Safefree(PL_efloatbuf);
bd61b366 917 PL_efloatbuf = NULL;
7d5ea4e7
GS
918 PL_efloatsize = 0;
919
8ebc5c01 920 /* startup and shutdown function lists */
3280af22 921 SvREFCNT_dec(PL_beginav);
5a837c8f 922 SvREFCNT_dec(PL_beginav_save);
3280af22 923 SvREFCNT_dec(PL_endav);
7d30b5c4 924 SvREFCNT_dec(PL_checkav);
ece599bd 925 SvREFCNT_dec(PL_checkav_save);
3c10abe3
AG
926 SvREFCNT_dec(PL_unitcheckav);
927 SvREFCNT_dec(PL_unitcheckav_save);
3280af22 928 SvREFCNT_dec(PL_initav);
7d49f689
NC
929 PL_beginav = NULL;
930 PL_beginav_save = NULL;
931 PL_endav = NULL;
932 PL_checkav = NULL;
933 PL_checkav_save = NULL;
3c10abe3
AG
934 PL_unitcheckav = NULL;
935 PL_unitcheckav_save = NULL;
7d49f689 936 PL_initav = NULL;
5618dfe8 937
8ebc5c01 938 /* shortcuts just get cleared */
a0714e2c
SS
939 PL_envgv = NULL;
940 PL_incgv = NULL;
941 PL_hintgv = NULL;
942 PL_errgv = NULL;
943 PL_argvgv = NULL;
944 PL_argvoutgv = NULL;
945 PL_stdingv = NULL;
946 PL_stderrgv = NULL;
947 PL_last_in_gv = NULL;
948 PL_replgv = NULL;
949 PL_DBgv = NULL;
950 PL_DBline = NULL;
951 PL_DBsub = NULL;
952 PL_DBsingle = NULL;
953 PL_DBtrace = NULL;
954 PL_DBsignal = NULL;
601f1833 955 PL_DBcv = NULL;
7d49f689 956 PL_dbargs = NULL;
5c284bb0 957 PL_debstash = NULL;
8ebc5c01 958
7a1c5554 959 SvREFCNT_dec(PL_argvout_stack);
7d49f689 960 PL_argvout_stack = NULL;
8ebc5c01 961
5c831c24 962 SvREFCNT_dec(PL_modglobal);
5c284bb0 963 PL_modglobal = NULL;
5c831c24 964 SvREFCNT_dec(PL_preambleav);
7d49f689 965 PL_preambleav = NULL;
5c831c24 966 SvREFCNT_dec(PL_subname);
a0714e2c 967 PL_subname = NULL;
ca0c25f6 968#ifdef PERL_USES_PL_PIDSTATUS
5c831c24 969 SvREFCNT_dec(PL_pidstatus);
5c284bb0 970 PL_pidstatus = NULL;
ca0c25f6 971#endif
5c831c24 972 SvREFCNT_dec(PL_toptarget);
a0714e2c 973 PL_toptarget = NULL;
5c831c24 974 SvREFCNT_dec(PL_bodytarget);
a0714e2c
SS
975 PL_bodytarget = NULL;
976 PL_formtarget = NULL;
5c831c24 977
d33b2eba 978 /* free locale stuff */
b9582b6a 979#ifdef USE_LOCALE_COLLATE
d33b2eba 980 Safefree(PL_collation_name);
bd61b366 981 PL_collation_name = NULL;
b9582b6a 982#endif
d33b2eba 983
b9582b6a 984#ifdef USE_LOCALE_NUMERIC
d33b2eba 985 Safefree(PL_numeric_name);
bd61b366 986 PL_numeric_name = NULL;
a453c169 987 SvREFCNT_dec(PL_numeric_radix_sv);
a0714e2c 988 PL_numeric_radix_sv = NULL;
b9582b6a 989#endif
d33b2eba 990
5c831c24
GS
991 /* clear utf8 character classes */
992 SvREFCNT_dec(PL_utf8_alnum);
5c831c24
GS
993 SvREFCNT_dec(PL_utf8_alpha);
994 SvREFCNT_dec(PL_utf8_space);
5c831c24
GS
995 SvREFCNT_dec(PL_utf8_graph);
996 SvREFCNT_dec(PL_utf8_digit);
997 SvREFCNT_dec(PL_utf8_upper);
998 SvREFCNT_dec(PL_utf8_lower);
999 SvREFCNT_dec(PL_utf8_print);
1000 SvREFCNT_dec(PL_utf8_punct);
1001 SvREFCNT_dec(PL_utf8_xdigit);
1002 SvREFCNT_dec(PL_utf8_mark);
1003 SvREFCNT_dec(PL_utf8_toupper);
4dbdbdc2 1004 SvREFCNT_dec(PL_utf8_totitle);
5c831c24 1005 SvREFCNT_dec(PL_utf8_tolower);
b4e400f9 1006 SvREFCNT_dec(PL_utf8_tofold);
82686b01
JH
1007 SvREFCNT_dec(PL_utf8_idstart);
1008 SvREFCNT_dec(PL_utf8_idcont);
2726813d 1009 SvREFCNT_dec(PL_utf8_foldclosures);
a0714e2c 1010 PL_utf8_alnum = NULL;
a0714e2c
SS
1011 PL_utf8_alpha = NULL;
1012 PL_utf8_space = NULL;
a0714e2c
SS
1013 PL_utf8_graph = NULL;
1014 PL_utf8_digit = NULL;
1015 PL_utf8_upper = NULL;
1016 PL_utf8_lower = NULL;
1017 PL_utf8_print = NULL;
1018 PL_utf8_punct = NULL;
1019 PL_utf8_xdigit = NULL;
1020 PL_utf8_mark = NULL;
1021 PL_utf8_toupper = NULL;
1022 PL_utf8_totitle = NULL;
1023 PL_utf8_tolower = NULL;
1024 PL_utf8_tofold = NULL;
1025 PL_utf8_idstart = NULL;
1026 PL_utf8_idcont = NULL;
2726813d 1027 PL_utf8_foldclosures = NULL;
5c831c24 1028
971a9dd3 1029 if (!specialWARN(PL_compiling.cop_warnings))
72dc9ed5 1030 PerlMemShared_free(PL_compiling.cop_warnings);
a0714e2c 1031 PL_compiling.cop_warnings = NULL;
20439bc7
Z
1032 cophh_free(CopHINTHASH_get(&PL_compiling));
1033 CopHINTHASH_set(&PL_compiling, cophh_new_empty());
05ec9bb3 1034 CopFILE_free(&PL_compiling);
5c831c24 1035
a0d0e21e 1036 /* Prepare to destruct main symbol table. */
5f05dabc 1037
3280af22 1038 hv = PL_defstash;
ca556bcd
DM
1039 /* break ref loop *:: <=> %:: */
1040 (void)hv_delete(hv, "main::", 6, G_DISCARD);
3280af22 1041 PL_defstash = 0;
a0d0e21e 1042 SvREFCNT_dec(hv);
5c831c24 1043 SvREFCNT_dec(PL_curstname);
a0714e2c 1044 PL_curstname = NULL;
a0d0e21e 1045
5a844595
GS
1046 /* clear queued errors */
1047 SvREFCNT_dec(PL_errors);
a0714e2c 1048 PL_errors = NULL;
5a844595 1049
dd69841b
BB
1050 SvREFCNT_dec(PL_isarev);
1051
a0d0e21e 1052 FREETMPS;
9b387841 1053 if (destruct_level >= 2) {
3280af22 1054 if (PL_scopestack_ix != 0)
9b387841
NC
1055 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1056 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
1057 (long)PL_scopestack_ix);
3280af22 1058 if (PL_savestack_ix != 0)
9b387841
NC
1059 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1060 "Unbalanced saves: %ld more saves than restores\n",
1061 (long)PL_savestack_ix);
3280af22 1062 if (PL_tmps_floor != -1)
9b387841
NC
1063 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
1064 (long)PL_tmps_floor + 1);
a0d0e21e 1065 if (cxstack_ix != -1)
9b387841
NC
1066 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
1067 (long)cxstack_ix + 1);
a0d0e21e 1068 }
8990e307 1069
0547a729
DM
1070#ifdef USE_ITHREADS
1071 SvREFCNT_dec(PL_regex_padav);
1072 PL_regex_padav = NULL;
1073 PL_regex_pad = NULL;
1074#endif
1075
776df701 1076#ifdef PERL_IMPLICIT_CONTEXT
57bb2458
JH
1077 /* the entries in this list are allocated via SV PVX's, so get freed
1078 * in sv_clean_all */
1079 Safefree(PL_my_cxt_list);
776df701 1080#endif
57bb2458 1081
8990e307 1082 /* Now absolutely destruct everything, somehow or other, loops or no. */
5226ed68
JH
1083
1084 /* the 2 is for PL_fdpid and PL_strtab */
d17ea597 1085 while (sv_clean_all() > 2)
5226ed68
JH
1086 ;
1087
d4777f27
GS
1088 AvREAL_off(PL_fdpid); /* no surviving entries */
1089 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
7d49f689 1090 PL_fdpid = NULL;
d33b2eba 1091
6c644e78
GS
1092#ifdef HAVE_INTERP_INTERN
1093 sys_intern_clear();
1094#endif
1095
6e72f9df
PP
1096 /* Destruct the global string table. */
1097 {
1098 /* Yell and reset the HeVAL() slots that are still holding refcounts,
1099 * so that sv_free() won't fail on them.
80459961
NC
1100 * Now that the global string table is using a single hunk of memory
1101 * for both HE and HEK, we either need to explicitly unshare it the
1102 * correct way, or actually free things here.
6e72f9df 1103 */
80459961
NC
1104 I32 riter = 0;
1105 const I32 max = HvMAX(PL_strtab);
c4420975 1106 HE * const * const array = HvARRAY(PL_strtab);
80459961
NC
1107 HE *hent = array[0];
1108
6e72f9df 1109 for (;;) {
0453d815 1110 if (hent && ckWARN_d(WARN_INTERNAL)) {
44f8325f 1111 HE * const next = HeNEXT(hent);
9014280d 1112 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
44f8325f 1113 "Unbalanced string table refcount: (%ld) for \"%s\"",
de616631 1114 (long)hent->he_valu.hent_refcount, HeKEY(hent));
80459961
NC
1115 Safefree(hent);
1116 hent = next;
6e72f9df
PP
1117 }
1118 if (!hent) {
1119 if (++riter > max)
1120 break;
1121 hent = array[riter];
1122 }
1123 }
80459961
NC
1124
1125 Safefree(array);
1126 HvARRAY(PL_strtab) = 0;
1127 HvTOTALKEYS(PL_strtab) = 0;
6e72f9df 1128 }
3280af22 1129 SvREFCNT_dec(PL_strtab);
6e72f9df 1130
e652bb2f 1131#ifdef USE_ITHREADS
c21d1a0f 1132 /* free the pointer tables used for cloning */
a0739874 1133 ptr_table_free(PL_ptr_table);
bf9cdc68 1134 PL_ptr_table = (PTR_TBL_t*)NULL;
53186e96 1135#endif
a0739874 1136
d33b2eba
GS
1137 /* free special SVs */
1138
1139 SvREFCNT(&PL_sv_yes) = 0;
1140 sv_clear(&PL_sv_yes);
1141 SvANY(&PL_sv_yes) = NULL;
4c5e2b0d 1142 SvFLAGS(&PL_sv_yes) = 0;
d33b2eba
GS
1143
1144 SvREFCNT(&PL_sv_no) = 0;
1145 sv_clear(&PL_sv_no);
1146 SvANY(&PL_sv_no) = NULL;
4c5e2b0d 1147 SvFLAGS(&PL_sv_no) = 0;
01724ea0 1148
9f375a43
DM
1149 {
1150 int i;
1151 for (i=0; i<=2; i++) {
1152 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
1153 sv_clear(PERL_DEBUG_PAD(i));
1154 SvANY(PERL_DEBUG_PAD(i)) = NULL;
1155 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
1156 }
1157 }
1158
0453d815 1159 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
9014280d 1160 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
6e72f9df 1161
eba0f806
DM
1162#ifdef DEBUG_LEAKING_SCALARS
1163 if (PL_sv_count != 0) {
1164 SV* sva;
1165 SV* sv;
1166 register SV* svend;
1167
ad64d0ec 1168 for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
eba0f806
DM
1169 svend = &sva[SvREFCNT(sva)];
1170 for (sv = sva + 1; sv < svend; ++sv) {
e4787c0c 1171 if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
a548cda8 1172 PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
61b61456 1173 " flags=0x%"UVxf
fd0854ff 1174 " refcnt=%"UVuf pTHX__FORMAT "\n"
cd676548
DM
1175 "\tallocated at %s:%d %s %s (parent 0x%"UVxf");"
1176 "serial %"UVuf"\n",
574b8821
NC
1177 (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
1178 pTHX__VALUE,
fd0854ff
DM
1179 sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1180 sv->sv_debug_line,
1181 sv->sv_debug_inpad ? "for" : "by",
1182 sv->sv_debug_optype ?
1183 PL_op_name[sv->sv_debug_optype]: "(none)",
cd676548 1184 PTR2UV(sv->sv_debug_parent),
cbe56f1d 1185 sv->sv_debug_serial
fd0854ff 1186 );
2aa47728 1187#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
41e4abd8 1188 Perl_dump_sv_child(aTHX_ sv);
2aa47728 1189#endif
eba0f806
DM
1190 }
1191 }
1192 }
1193 }
2aa47728
NC
1194#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
1195 {
1196 int status;
1197 fd_set rset;
1198 /* Wait for up to 4 seconds for child to terminate.
1199 This seems to be the least effort way of timing out on reaping
1200 its exit status. */
1201 struct timeval waitfor = {4, 0};
41e4abd8 1202 int sock = PL_dumper_fd;
2aa47728
NC
1203
1204 shutdown(sock, 1);
1205 FD_ZERO(&rset);
1206 FD_SET(sock, &rset);
1207 select(sock + 1, &rset, NULL, NULL, &waitfor);
1208 waitpid(child, &status, WNOHANG);
1209 close(sock);
1210 }
1211#endif
eba0f806 1212#endif
77abb4c6
NC
1213#ifdef DEBUG_LEAKING_SCALARS_ABORT
1214 if (PL_sv_count)
1215 abort();
1216#endif
bf9cdc68 1217 PL_sv_count = 0;
eba0f806 1218
f1fac472
NC
1219#ifdef PERL_DEBUG_READONLY_OPS
1220 free(PL_slabs);
1221 PL_slabs = NULL;
1222 PL_slab_count = 0;
1223#endif
eba0f806 1224
56a2bab7 1225#if defined(PERLIO_LAYERS)
3a1ee7e8
NIS
1226 /* No more IO - including error messages ! */
1227 PerlIO_cleanup(aTHX);
1228#endif
1229
9f4bd222 1230 /* sv_undef needs to stay immortal until after PerlIO_cleanup
a0714e2c 1231 as currently layers use it rather than NULL as a marker
9f4bd222
NIS
1232 for no arg - and will try and SvREFCNT_dec it.
1233 */
1234 SvREFCNT(&PL_sv_undef) = 0;
1235 SvREADONLY_off(&PL_sv_undef);
1236
3280af22 1237 Safefree(PL_origfilename);
bd61b366 1238 PL_origfilename = NULL;
43c5f42d 1239 Safefree(PL_reg_curpm);
82ba1be6 1240 Safefree(PL_reg_poscache);
dd28f7bb 1241 free_tied_hv_pool();
3280af22 1242 Safefree(PL_op_mask);
cf36064f 1243 Safefree(PL_psig_name);
bf9cdc68 1244 PL_psig_name = (SV**)NULL;
d525a7b2 1245 PL_psig_ptr = (SV**)NULL;
31c91b43
LR
1246 {
1247 /* We need to NULL PL_psig_pend first, so that
1248 signal handlers know not to use it */
1249 int *psig_save = PL_psig_pend;
1250 PL_psig_pend = (int*)NULL;
1251 Safefree(psig_save);
1252 }
a0714e2c 1253 PL_formfeed = NULL;
6e72f9df 1254 nuke_stacks();
bf9cdc68
RG
1255 PL_tainting = FALSE;
1256 PL_taint_warn = FALSE;
3280af22 1257 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
bf9cdc68 1258 PL_debug = 0;
ac27b0f5 1259
a0d0e21e 1260 DEBUG_P(debprofdump());
d33b2eba 1261
e5dd39fc 1262#ifdef USE_REENTRANT_API
10bc17b6 1263 Perl_reentrant_free(aTHX);
e5dd39fc
AB
1264#endif
1265
612f20c3
GS
1266 sv_free_arenas();
1267
5d9a96ca
DM
1268 while (PL_regmatch_slab) {
1269 regmatch_slab *s = PL_regmatch_slab;
1270 PL_regmatch_slab = PL_regmatch_slab->next;
1271 Safefree(s);
1272 }
1273
fc36a67e
PP
1274 /* As the absolutely last thing, free the non-arena SV for mess() */
1275
3280af22 1276 if (PL_mess_sv) {
f350b448
NC
1277 /* we know that type == SVt_PVMG */
1278
9c63abab 1279 /* it could have accumulated taint magic */
f350b448
NC
1280 MAGIC* mg;
1281 MAGIC* moremagic;
1282 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
1283 moremagic = mg->mg_moremagic;
1284 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
1285 && mg->mg_len >= 0)
1286 Safefree(mg->mg_ptr);
1287 Safefree(mg);
9c63abab 1288 }
f350b448 1289
fc36a67e 1290 /* we know that type >= SVt_PV */
8bd4d4c5 1291 SvPV_free(PL_mess_sv);
3280af22
NIS
1292 Safefree(SvANY(PL_mess_sv));
1293 Safefree(PL_mess_sv);
a0714e2c 1294 PL_mess_sv = NULL;
fc36a67e 1295 }
37038d91 1296 return STATUS_EXIT;
79072805
LW
1297}
1298
954c1994
GS
1299/*
1300=for apidoc perl_free
1301
1302Releases a Perl interpreter. See L<perlembed>.
1303
1304=cut
1305*/
1306
79072805 1307void
0cb96387 1308perl_free(pTHXx)
79072805 1309{
5174512c
NC
1310 dVAR;
1311
7918f24d
NC
1312 PERL_ARGS_ASSERT_PERL_FREE;
1313
c301d606
DM
1314 if (PL_veto_cleanup)
1315 return;
1316
7cb608b5 1317#ifdef PERL_TRACK_MEMPOOL
55ef9aae
MHM
1318 {
1319 /*
1320 * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero
1321 * value as we're probably hunting memory leaks then
1322 */
1323 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
1324 if (!s || atoi(s) == 0) {
4fd0a9b8 1325 const U32 old_debug = PL_debug;
55ef9aae
MHM
1326 /* Emulate the PerlHost behaviour of free()ing all memory allocated in this
1327 thread at thread exit. */
4fd0a9b8
NC
1328 if (DEBUG_m_TEST) {
1329 PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
1330 "free this thread's memory\n");
1331 PL_debug &= ~ DEBUG_m_FLAG;
1332 }
55ef9aae
MHM
1333 while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header))
1334 safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next));
4fd0a9b8 1335 PL_debug = old_debug;
55ef9aae
MHM
1336 }
1337 }
7cb608b5
NC
1338#endif
1339
acfe0abc 1340#if defined(WIN32) || defined(NETWARE)
ce3e5b80 1341# if defined(PERL_IMPLICIT_SYS)
b36c9a52 1342 {
acfe0abc 1343# ifdef NETWARE
7af12a34 1344 void *host = nw_internal_host;
acfe0abc 1345# else
7af12a34 1346 void *host = w32_internal_host;
acfe0abc 1347# endif
7af12a34 1348 PerlMem_free(aTHXx);
acfe0abc 1349# ifdef NETWARE
7af12a34 1350 nw_delete_internal_host(host);
acfe0abc 1351# else
7af12a34 1352 win32_delete_internal_host(host);
acfe0abc 1353# endif
7af12a34 1354 }
1c0ca838
GS
1355# else
1356 PerlMem_free(aTHXx);
1357# endif
acfe0abc
GS
1358#else
1359 PerlMem_free(aTHXx);
76e3520e 1360#endif
79072805
LW
1361}
1362
b7f7fff6 1363#if defined(USE_ITHREADS)
aebd1ac7
GA
1364/* provide destructors to clean up the thread key when libperl is unloaded */
1365#ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */
1366
826955bd 1367#if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__)
aebd1ac7 1368#pragma fini "perl_fini"
666ad1ec
GA
1369#elif defined(__sun) && !defined(__GNUC__)
1370#pragma fini (perl_fini)
aebd1ac7
GA
1371#endif
1372
0dbb1585
AL
1373static void
1374#if defined(__GNUC__)
1375__attribute__((destructor))
aebd1ac7 1376#endif
de009b76 1377perl_fini(void)
aebd1ac7 1378{
27da23d5 1379 dVAR;
c301d606 1380 if (PL_curinterp && !PL_veto_cleanup)
aebd1ac7
GA
1381 FREE_THREAD_KEY;
1382}
1383
1384#endif /* WIN32 */
1385#endif /* THREADS */
1386
4b556e6c 1387void
864dbfa3 1388Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
4b556e6c 1389{
97aff369 1390 dVAR;
3280af22
NIS
1391 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
1392 PL_exitlist[PL_exitlistlen].fn = fn;
1393 PL_exitlist[PL_exitlistlen].ptr = ptr;
1394 ++PL_exitlistlen;
4b556e6c
JD
1395}
1396
b7975bdd
NC
1397STATIC void
1398S_set_caret_X(pTHX) {
97aff369 1399 dVAR;
fafc274c 1400 GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */
b7975bdd 1401 if (tmpgv) {
0f1723e1 1402 SV *const caret_x = GvSV(tmpgv);
82552a95
NC
1403#if defined(OS2)
1404 sv_setpv(caret_x, os2_execname(aTHX));
1405#else
2982a345
NC
1406# ifdef USE_KERN_PROC_PATHNAME
1407 size_t size = 0;
1408 int mib[4];
1409 mib[0] = CTL_KERN;
1410 mib[1] = KERN_PROC;
1411 mib[2] = KERN_PROC_PATHNAME;
1412 mib[3] = -1;
1413
1414 if (sysctl(mib, 4, NULL, &size, NULL, 0) == 0
1415 && size > 0 && size < MAXPATHLEN * MAXPATHLEN) {
1416 sv_grow(caret_x, size);
1417
1418 if (sysctl(mib, 4, SvPVX(caret_x), &size, NULL, 0) == 0
1419 && size > 2) {
1420 SvPOK_only(caret_x);
1421 SvCUR_set(caret_x, size - 1);
1422 SvTAINT(caret_x);
1423 return;
1424 }
1425 }
ae60cb46
NC
1426# elif defined(USE_NSGETEXECUTABLEPATH)
1427 char buf[1];
1428 uint32_t size = sizeof(buf);
ae60cb46
NC
1429
1430 _NSGetExecutablePath(buf, &size);
1431 if (size < MAXPATHLEN * MAXPATHLEN) {
1432 sv_grow(caret_x, size);
1433 if (_NSGetExecutablePath(SvPVX(caret_x), &size) == 0) {
1434 char *const tidied = realpath(SvPVX(caret_x), NULL);
1435 if (tidied) {
1436 sv_setpv(caret_x, tidied);
1437 free(tidied);
1438 } else {
1439 SvPOK_only(caret_x);
1440 SvCUR_set(caret_x, size);
1441 }
1442 return;
1443 }
1444 }
2982a345 1445# elif defined(HAS_PROCSELFEXE)
700dd4f8
NC
1446 char buf[MAXPATHLEN];
1447 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
1448
1449 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
1450 includes a spurious NUL which will cause $^X to fail in system
1451 or backticks (this will prevent extensions from being built and
1452 many tests from working). readlink is not meant to add a NUL.
1453 Normal readlink works fine.
1454 */
1455 if (len > 0 && buf[len-1] == '\0') {
1456 len--;
1457 }
1458
1459 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
1460 returning the text "unknown" from the readlink rather than the path
1461 to the executable (or returning an error from the readlink). Any
1462 valid path has a '/' in it somewhere, so use that to validate the
1463 result. See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
1464 */
1465 if (len > 0 && memchr(buf, '/', len)) {
1466 sv_setpvn(caret_x, buf, len);
82552a95 1467 return;
700dd4f8 1468 }
82552a95
NC
1469# endif
1470 /* Fallback to this: */
0f1723e1 1471 sv_setpv(caret_x, PL_origargv[0]);
b7975bdd 1472#endif
b7975bdd
NC
1473 }
1474}
1475
954c1994
GS
1476/*
1477=for apidoc perl_parse
1478
1479Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
1480
1481=cut
1482*/
1483
03d9f026
FC
1484#define SET_CURSTASH(newstash) \
1485 if (PL_curstash != newstash) { \
1486 SvREFCNT_dec(PL_curstash); \
1487 PL_curstash = (HV *)SvREFCNT_inc(newstash); \
1488 }
1489
79072805 1490int
0cb96387 1491perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
8d063cd8 1492{
27da23d5 1493 dVAR;
6224f72b 1494 I32 oldscope;
6224f72b 1495 int ret;
db36c5a1 1496 dJMPENV;
8d063cd8 1497
7918f24d
NC
1498 PERL_ARGS_ASSERT_PERL_PARSE;
1499#ifndef MULTIPLICITY
ed6c66dd 1500 PERL_UNUSED_ARG(my_perl);
7918f24d 1501#endif
9d4ba2ae 1502
b0891165
JH
1503#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
1504 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
103dd899 1505 * This MUST be done before any hash stores or fetches take place.
486ec47a 1506 * If you set PL_rehash_seed (and presumably also PL_rehash_seed_set)
008fb0c0 1507 * yourself, it is your responsibility to provide a good random seed!
830b38bd 1508 * You can also define PERL_HASH_SEED in compile time, see hv.h. */
008fb0c0
NC
1509 if (!PL_rehash_seed_set)
1510 PL_rehash_seed = get_hash_seed();
b0891165 1511 {
9d4ba2ae 1512 const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
bed60192 1513
1b6737cc
AL
1514 if (s && (atoi(s) == 1))
1515 PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed);
b0891165
JH
1516 }
1517#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
1518
3280af22 1519 PL_origargc = argc;
e2975953 1520 PL_origargv = argv;
a0d0e21e 1521
a2722ac9
GA
1522 if (PL_origalen != 0) {
1523 PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */
1524 }
1525 else {
3cb9023d
JH
1526 /* Set PL_origalen be the sum of the contiguous argv[]
1527 * elements plus the size of the env in case that it is
e9137a8e 1528 * contiguous with the argv[]. This is used in mg.c:Perl_magic_set()
3cb9023d
JH
1529 * as the maximum modifiable length of $0. In the worst case
1530 * the area we are able to modify is limited to the size of
43c32782 1531 * the original argv[0]. (See below for 'contiguous', though.)
3cb9023d 1532 * --jhi */
e1ec3a88 1533 const char *s = NULL;
54bfe034 1534 int i;
1b6737cc 1535 const UV mask =
7d8e7db3 1536 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
43c32782 1537 /* Do the mask check only if the args seem like aligned. */
1b6737cc 1538 const UV aligned =
43c32782
JH
1539 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
1540
1541 /* See if all the arguments are contiguous in memory. Note
1542 * that 'contiguous' is a loose term because some platforms
1543 * align the argv[] and the envp[]. If the arguments look
1544 * like non-aligned, assume that they are 'strictly' or
1545 * 'traditionally' contiguous. If the arguments look like
1546 * aligned, we just check that they are within aligned
1547 * PTRSIZE bytes. As long as no system has something bizarre
1548 * like the argv[] interleaved with some other data, we are
1549 * fine. (Did I just evoke Murphy's Law?) --jhi */
c8941eeb
JH
1550 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) {
1551 while (*s) s++;
1552 for (i = 1; i < PL_origargc; i++) {
1553 if ((PL_origargv[i] == s + 1
43c32782 1554#ifdef OS2
c8941eeb 1555 || PL_origargv[i] == s + 2
43c32782 1556#endif
c8941eeb
JH
1557 )
1558 ||
1559 (aligned &&
1560 (PL_origargv[i] > s &&
1561 PL_origargv[i] <=
1562 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1563 )
1564 {
1565 s = PL_origargv[i];
1566 while (*s) s++;
1567 }
1568 else
1569 break;
54bfe034 1570 }
54bfe034 1571 }
a4a109c2
JD
1572
1573#ifndef PERL_USE_SAFE_PUTENV
3cb9023d 1574 /* Can we grab env area too to be used as the area for $0? */
a4a109c2 1575 if (s && PL_origenviron && !PL_use_safe_putenv) {
9d419b5f 1576 if ((PL_origenviron[0] == s + 1)
43c32782
JH
1577 ||
1578 (aligned &&
1579 (PL_origenviron[0] > s &&
1580 PL_origenviron[0] <=
1581 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1582 )
1583 {
9d419b5f 1584#ifndef OS2 /* ENVIRON is read by the kernel too. */
43c32782
JH
1585 s = PL_origenviron[0];
1586 while (*s) s++;
1587#endif
bd61b366 1588 my_setenv("NoNe SuCh", NULL);
43c32782
JH
1589 /* Force copy of environment. */
1590 for (i = 1; PL_origenviron[i]; i++) {
1591 if (PL_origenviron[i] == s + 1
1592 ||
1593 (aligned &&
1594 (PL_origenviron[i] > s &&
1595 PL_origenviron[i] <=
1596 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1597 )
1598 {
1599 s = PL_origenviron[i];
1600 while (*s) s++;
1601 }
1602 else
1603 break;
54bfe034 1604 }
43c32782 1605 }
54bfe034 1606 }
a4a109c2
JD
1607#endif /* !defined(PERL_USE_SAFE_PUTENV) */
1608
2d2af554 1609 PL_origalen = s ? s - PL_origargv[0] + 1 : 0;
54bfe034
JH
1610 }
1611
3280af22 1612 if (PL_do_undump) {
a0d0e21e
LW
1613
1614 /* Come here if running an undumped a.out. */
1615
3280af22
NIS
1616 PL_origfilename = savepv(argv[0]);
1617 PL_do_undump = FALSE;
a0d0e21e 1618 cxstack_ix = -1; /* start label stack again */
748a9306 1619 init_ids();
b7975bdd
NC
1620 assert (!PL_tainted);
1621 TAINT;
1622 S_set_caret_X(aTHX);
1623 TAINT_NOT;
a0d0e21e
LW
1624 init_postdump_symbols(argc,argv,env);
1625 return 0;
1626 }
1627
3280af22 1628 if (PL_main_root) {
3280af22 1629 op_free(PL_main_root);
5f66b61c 1630 PL_main_root = NULL;
ff0cee69 1631 }
5f66b61c 1632 PL_main_start = NULL;
3280af22 1633 SvREFCNT_dec(PL_main_cv);
601f1833 1634 PL_main_cv = NULL;
79072805 1635
3280af22
NIS
1636 time(&PL_basetime);
1637 oldscope = PL_scopestack_ix;
599cee73 1638 PL_dowarn = G_WARN_OFF;
f86702cc 1639
14dd3ad8 1640 JMPENV_PUSH(ret);
6224f72b 1641 switch (ret) {
312caa8e 1642 case 0:
14dd3ad8 1643 parse_body(env,xsinit);
9ebf26ad 1644 if (PL_unitcheckav) {
3c10abe3 1645 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1646 }
1647 if (PL_checkav) {
ca7b837b 1648 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1649 call_list(oldscope, PL_checkav);
9ebf26ad 1650 }
14dd3ad8
GS
1651 ret = 0;
1652 break;
6224f72b
GS
1653 case 1:
1654 STATUS_ALL_FAILURE;
1655 /* FALL THROUGH */
1656 case 2:
1657 /* my_exit() was called */
3280af22 1658 while (PL_scopestack_ix > oldscope)
6224f72b
GS
1659 LEAVE;
1660 FREETMPS;
03d9f026 1661 SET_CURSTASH(PL_defstash);
9ebf26ad 1662 if (PL_unitcheckav) {
3c10abe3 1663 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1664 }
1665 if (PL_checkav) {
ca7b837b 1666 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1667 call_list(oldscope, PL_checkav);
9ebf26ad 1668 }
37038d91 1669 ret = STATUS_EXIT;
14dd3ad8 1670 break;
6224f72b 1671 case 3:
bf49b057 1672 PerlIO_printf(Perl_error_log, "panic: top_env\n");
14dd3ad8
GS
1673 ret = 1;
1674 break;
6224f72b 1675 }
14dd3ad8
GS
1676 JMPENV_POP;
1677 return ret;
1678}
1679
4a5df386
NC
1680/* This needs to stay in perl.c, as perl.c is compiled with different flags for
1681 miniperl, and we need to see those flags reflected in the values here. */
1682
1683/* What this returns is subject to change. Use the public interface in Config.
1684 */
1685static void
1686S_Internals_V(pTHX_ CV *cv)
1687{
1688 dXSARGS;
1689#ifdef LOCAL_PATCH_COUNT
1690 const int local_patch_count = LOCAL_PATCH_COUNT;
1691#else
1692 const int local_patch_count = 0;
1693#endif
2dc296d2 1694 const int entries = 3 + local_patch_count;
4a5df386
NC
1695 int i;
1696 static char non_bincompat_options[] =
1697# ifdef DEBUGGING
1698 " DEBUGGING"
1699# endif
1700# ifdef NO_MATHOMS
0d311fbe 1701 " NO_MATHOMS"
4a5df386
NC
1702# endif
1703# ifdef PERL_DISABLE_PMC
1704 " PERL_DISABLE_PMC"
1705# endif
1706# ifdef PERL_DONT_CREATE_GVSV
1707 " PERL_DONT_CREATE_GVSV"
1708# endif
9a044a43
NC
1709# ifdef PERL_EXTERNAL_GLOB
1710 " PERL_EXTERNAL_GLOB"
1711# endif
4a5df386
NC
1712# ifdef PERL_IS_MINIPERL
1713 " PERL_IS_MINIPERL"
1714# endif
1715# ifdef PERL_MALLOC_WRAP
1716 " PERL_MALLOC_WRAP"
1717# endif
1718# ifdef PERL_MEM_LOG
1719 " PERL_MEM_LOG"
1720# endif
1721# ifdef PERL_MEM_LOG_NOIMPL
1722 " PERL_MEM_LOG_NOIMPL"
1723# endif
c3cf41ec
NC
1724# ifdef PERL_PRESERVE_IVUV
1725 " PERL_PRESERVE_IVUV"
1726# endif
c051e30b
NC
1727# ifdef PERL_RELOCATABLE_INCPUSH
1728 " PERL_RELOCATABLE_INCPUSH"
1729# endif
4a5df386
NC
1730# ifdef PERL_USE_DEVEL
1731 " PERL_USE_DEVEL"
1732# endif
1733# ifdef PERL_USE_SAFE_PUTENV
1734 " PERL_USE_SAFE_PUTENV"
1735# endif
a3749cf3
NC
1736# ifdef UNLINK_ALL_VERSIONS
1737 " UNLINK_ALL_VERSIONS"
1738# endif
de618ee4
NC
1739# ifdef USE_ATTRIBUTES_FOR_PERLIO
1740 " USE_ATTRIBUTES_FOR_PERLIO"
1741# endif
4a5df386
NC
1742# ifdef USE_FAST_STDIO
1743 " USE_FAST_STDIO"
1744# endif
98548bdf
NC
1745# ifdef USE_LOCALE
1746 " USE_LOCALE"
1747# endif
98548bdf
NC
1748# ifdef USE_LOCALE_CTYPE
1749 " USE_LOCALE_CTYPE"
1750# endif
5a8d8935
NC
1751# ifdef USE_PERL_ATOF
1752 " USE_PERL_ATOF"
1753# endif
0d311fbe
NC
1754# ifdef USE_SITECUSTOMIZE
1755 " USE_SITECUSTOMIZE"
1756# endif
4a5df386
NC
1757 ;
1758 PERL_UNUSED_ARG(cv);
1759 PERL_UNUSED_ARG(items);
1760
1761 EXTEND(SP, entries);
1762
1763 PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0)));
1764 PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
1765 sizeof(non_bincompat_options) - 1, SVs_TEMP));
1766
1767#ifdef __DATE__
1768# ifdef __TIME__
1769 PUSHs(Perl_newSVpvn_flags(aTHX_
1770 STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
1771 SVs_TEMP));
1772# else
1773 PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__),
1774 SVs_TEMP));
1775# endif
1776#else
1777 PUSHs(&PL_sv_undef);
1778#endif
1779
4a5df386
NC
1780 for (i = 1; i <= local_patch_count; i++) {
1781 /* This will be an undef, if PL_localpatches[i] is NULL. */
1782 PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0)));
1783 }
1784
1785 XSRETURN(entries);
1786}
1787
be71fc8f
NC
1788#define INCPUSH_UNSHIFT 0x01
1789#define INCPUSH_ADD_OLD_VERS 0x02
1790#define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04
1791#define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08
1792#define INCPUSH_NOT_BASEDIR 0x10
1793#define INCPUSH_CAN_RELOCATE 0x20
1e3208d8
NC
1794#define INCPUSH_ADD_SUB_DIRS \
1795 (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS)
e28f3139 1796
312caa8e 1797STATIC void *
14dd3ad8 1798S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
312caa8e 1799{
27da23d5 1800 dVAR;
2f9285f8 1801 PerlIO *rsfp;
312caa8e 1802 int argc = PL_origargc;
8f42b153 1803 char **argv = PL_origargv;
e1ec3a88 1804 const char *scriptname = NULL;
312caa8e 1805 VOL bool dosearch = FALSE;
c7030b81 1806 register char c;
737c24fc 1807 bool doextract = FALSE;
bd61b366 1808 const char *cddir = NULL;
ab019eaa 1809#ifdef USE_SITECUSTOMIZE
20ef40cf 1810 bool minus_f = FALSE;
ab019eaa 1811#endif
95670bde 1812 SV *linestr_sv = NULL;
5486870f 1813 bool add_read_e_script = FALSE;
87606032 1814 U32 lex_start_flags = 0;
009d90df 1815
ca7b837b 1816 PERL_SET_PHASE(PERL_PHASE_START);
9ebf26ad 1817
6224f72b 1818 init_main_stash();
54310121 1819
c7030b81
NC
1820 {
1821 const char *s;
6224f72b
GS
1822 for (argc--,argv++; argc > 0; argc--,argv++) {
1823 if (argv[0][0] != '-' || !argv[0][1])
1824 break;
6224f72b
GS
1825 s = argv[0]+1;
1826 reswitch:
47f56822 1827 switch ((c = *s)) {
729a02f2 1828 case 'C':
1d5472a9
GS
1829#ifndef PERL_STRICT_CR
1830 case '\r':
1831#endif
6224f72b
GS
1832 case ' ':
1833 case '0':
1834 case 'F':
1835 case 'a':
1836 case 'c':
1837 case 'd':
1838 case 'D':
1839 case 'h':
1840 case 'i':
1841 case 'l':
1842 case 'M':
1843 case 'm':
1844 case 'n':
1845 case 'p':
1846 case 's':
1847 case 'u':
1848 case 'U':
1849 case 'v':
599cee73
PM
1850 case 'W':
1851 case 'X':
6224f72b 1852 case 'w':
97bd5664 1853 if ((s = moreswitches(s)))
6224f72b
GS
1854 goto reswitch;
1855 break;
33b78306 1856
1dbad523 1857 case 't':
22f7c9c9 1858 CHECK_MALLOC_TOO_LATE_FOR('t');
317ea90d
MS
1859 if( !PL_tainting ) {
1860 PL_taint_warn = TRUE;
1861 PL_tainting = TRUE;
1862 }
1863 s++;
1864 goto reswitch;
6224f72b 1865 case 'T':
22f7c9c9 1866 CHECK_MALLOC_TOO_LATE_FOR('T');
3280af22 1867 PL_tainting = TRUE;
317ea90d 1868 PL_taint_warn = FALSE;
6224f72b
GS
1869 s++;
1870 goto reswitch;
f86702cc 1871
bc9b29db
RH
1872 case 'E':
1873 PL_minus_E = TRUE;
1874 /* FALL THROUGH */
6224f72b 1875 case 'e':
f20b2998 1876 forbid_setid('e', FALSE);
3280af22 1877 if (!PL_e_script) {
396482e1 1878 PL_e_script = newSVpvs("");
5486870f 1879 add_read_e_script = TRUE;
6224f72b
GS
1880 }
1881 if (*++s)
3280af22 1882 sv_catpv(PL_e_script, s);
6224f72b 1883 else if (argv[1]) {
3280af22 1884 sv_catpv(PL_e_script, argv[1]);
6224f72b
GS
1885 argc--,argv++;
1886 }
1887 else
47f56822 1888 Perl_croak(aTHX_ "No code specified for -%c", c);
396482e1 1889 sv_catpvs(PL_e_script, "\n");
6224f72b 1890 break;
afe37c7d 1891
20ef40cf 1892 case 'f':
f5542d3a 1893#ifdef USE_SITECUSTOMIZE
20ef40cf 1894 minus_f = TRUE;
f5542d3a 1895#endif
20ef40cf
GA
1896 s++;
1897 goto reswitch;
1898
6224f72b 1899 case 'I': /* -I handled both here and in moreswitches() */
f20b2998 1900 forbid_setid('I', FALSE);
bd61b366 1901 if (!*++s && (s=argv[1]) != NULL) {
6224f72b
GS
1902 argc--,argv++;
1903 }
6224f72b 1904 if (s && *s) {
0df16ed7 1905 STRLEN len = strlen(s);
55b4bc1c 1906 incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
0df16ed7
GS
1907 }
1908 else
a67e862a 1909 Perl_croak(aTHX_ "No directory specified for -I");
6224f72b 1910 break;
6224f72b 1911 case 'S':
f20b2998 1912 forbid_setid('S', FALSE);
6224f72b
GS
1913 dosearch = TRUE;
1914 s++;
1915 goto reswitch;
1916 case 'V':
7edfd0ef
NC
1917 {
1918 SV *opts_prog;
1919
7edfd0ef 1920 if (*++s != ':') {
37ca4a5b 1921 opts_prog = newSVpvs("use Config; Config::_V()");
7edfd0ef
NC
1922 }
1923 else {
1924 ++s;
1925 opts_prog = Perl_newSVpvf(aTHX_
37ca4a5b 1926 "use Config; Config::config_vars(qw%c%s%c)",
7edfd0ef
NC
1927 0, s, 0);
1928 s += strlen(s);
1929 }
37ca4a5b 1930 Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog);
7edfd0ef
NC
1931 /* don't look for script or read stdin */
1932 scriptname = BIT_BUCKET;
1933 goto reswitch;
6224f72b 1934 }
6224f72b 1935 case 'x':
737c24fc 1936 doextract = TRUE;
6224f72b 1937 s++;
304334da 1938 if (*s)
f4c556ac 1939 cddir = s;
6224f72b
GS
1940 break;
1941 case 0:
1942 break;
1943 case '-':
1944 if (!*++s || isSPACE(*s)) {
1945 argc--,argv++;
1946 goto switch_end;
1947 }
ee8bc8b7
NC
1948 /* catch use of gnu style long options.
1949 Both of these exit immediately. */
1950 if (strEQ(s, "version"))
1951 minus_v();
1952 if (strEQ(s, "help"))
1953 usage();
6224f72b
GS
1954 s--;
1955 /* FALL THROUGH */
1956 default:
cea2e8a9 1957 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
8d063cd8
LW
1958 }
1959 }
c7030b81
NC
1960 }
1961
6224f72b 1962 switch_end:
54310121 1963
c7030b81
NC
1964 {
1965 char *s;
1966
f675dbe5
CB
1967 if (
1968#ifndef SECURE_INTERNAL_GETENV
1969 !PL_tainting &&
1970#endif
cf756827 1971 (s = PerlEnv_getenv("PERL5OPT")))
0df16ed7 1972 {
74288ac8
GS
1973 while (isSPACE(*s))
1974 s++;
317ea90d 1975 if (*s == '-' && *(s+1) == 'T') {
22f7c9c9 1976 CHECK_MALLOC_TOO_LATE_FOR('T');
74288ac8 1977 PL_tainting = TRUE;
317ea90d
MS
1978 PL_taint_warn = FALSE;
1979 }
74288ac8 1980 else {
bd61b366 1981 char *popt_copy = NULL;
74288ac8 1982 while (s && *s) {
54913509 1983 const char *d;
74288ac8
GS
1984 while (isSPACE(*s))
1985 s++;
1986 if (*s == '-') {
1987 s++;
1988 if (isSPACE(*s))
1989 continue;
1990 }
4ea8f8fb 1991 d = s;
74288ac8
GS
1992 if (!*s)
1993 break;
2b622f1a 1994 if (!strchr("CDIMUdmtwW", *s))
cea2e8a9 1995 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
4ea8f8fb
MS
1996 while (++s && *s) {
1997 if (isSPACE(*s)) {
cf756827 1998 if (!popt_copy) {
bfa6c418
NC
1999 popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
2000 s = popt_copy + (s - d);
2001 d = popt_copy;
cf756827 2002 }
4ea8f8fb
MS
2003 *s++ = '\0';
2004 break;
2005 }
2006 }
1c4db469 2007 if (*d == 't') {
317ea90d
MS
2008 if( !PL_tainting ) {
2009 PL_taint_warn = TRUE;
2010 PL_tainting = TRUE;
2011 }
1c4db469 2012 } else {
97bd5664 2013 moreswitches(d);
1c4db469 2014 }
6224f72b 2015 }
6224f72b
GS
2016 }
2017 }
c7030b81 2018 }
a0d0e21e 2019
c29067d7
CH
2020 /* Set $^X early so that it can be used for relocatable paths in @INC */
2021 /* and for SITELIB_EXP in USE_SITECUSTOMIZE */
2022 assert (!PL_tainted);
2023 TAINT;
2024 S_set_caret_X(aTHX);
2025 TAINT_NOT;
2026
43c0c913 2027#if defined(USE_SITECUSTOMIZE)
20ef40cf 2028 if (!minus_f) {
43c0c913 2029 /* The games with local $! are to avoid setting errno if there is no
fc81b718
NC
2030 sitecustomize script. "q%c...%c", 0, ..., 0 becomes "q\0...\0",
2031 ie a q() operator with a NUL byte as a the delimiter. This avoids
2032 problems with pathnames containing (say) ' */
43c0c913
NC
2033# ifdef PERL_IS_MINIPERL
2034 AV *const inc = GvAV(PL_incgv);
2035 SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL;
2036
2037 if (inc0) {
2038 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2039 Perl_newSVpvf(aTHX_
fc81b718
NC
2040 "BEGIN { do {local $!; -f q%c%"SVf"/buildcustomize.pl%c} && do q%c%"SVf"/buildcustomize.pl%c }",
2041 0, *inc0, 0,
2042 0, *inc0, 0));
43c0c913
NC
2043 }
2044# else
2045 /* SITELIB_EXP is a function call on Win32. */
c29067d7 2046 const char *const raw_sitelib = SITELIB_EXP;
bac5c4fc
JD
2047 if (raw_sitelib) {
2048 /* process .../.. if PERL_RELOCATABLE_INC is defined */
2049 SV *sitelib_sv = mayberelocate(raw_sitelib, strlen(raw_sitelib),
2050 INCPUSH_CAN_RELOCATE);
2051 const char *const sitelib = SvPVX(sitelib_sv);
2052 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2053 Perl_newSVpvf(aTHX_
2054 "BEGIN { do {local $!; -f q%c%s/sitecustomize.pl%c} && do q%c%s/sitecustomize.pl%c }",
2055 0, sitelib, 0,
2056 0, sitelib, 0));
2057 assert (SvREFCNT(sitelib_sv) == 1);
2058 SvREFCNT_dec(sitelib_sv);
2059 }
43c0c913 2060# endif
20ef40cf
GA
2061 }
2062#endif
2063
6224f72b
GS
2064 if (!scriptname)
2065 scriptname = argv[0];
3280af22 2066 if (PL_e_script) {
6224f72b
GS
2067 argc++,argv--;
2068 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
2069 }
bd61b366 2070 else if (scriptname == NULL) {
6224f72b
GS
2071#ifdef MSDOS
2072 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
97bd5664 2073 moreswitches("h");
6224f72b
GS
2074#endif
2075 scriptname = "-";
2076 }
2077
b7975bdd 2078 assert (!PL_tainted);
2cace6ac 2079 init_perllib();
6224f72b 2080
a52eba0e 2081 {
f20b2998 2082 bool suidscript = FALSE;
829372d3 2083
8d113837 2084 rsfp = open_script(scriptname, dosearch, &suidscript);
c0b3891a
NC
2085 if (!rsfp) {
2086 rsfp = PerlIO_stdin();
87606032 2087 lex_start_flags = LEX_DONT_CLOSE_RSFP;
c0b3891a 2088 }
6224f72b 2089
b24bc095 2090 validate_suid(rsfp);
6224f72b 2091
64ca3a65 2092#ifndef PERL_MICRO
a52eba0e
NC
2093# if defined(SIGCHLD) || defined(SIGCLD)
2094 {
2095# ifndef SIGCHLD
2096# define SIGCHLD SIGCLD
2097# endif
2098 Sighandler_t sigstate = rsignal_state(SIGCHLD);
2099 if (sigstate == (Sighandler_t) SIG_IGN) {
a2a5de95
NC
2100 Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
2101 "Can't ignore signal CHLD, forcing to default");
a52eba0e
NC
2102 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
2103 }
0b5b802d 2104 }
a52eba0e 2105# endif
64ca3a65 2106#endif
0b5b802d 2107
737c24fc 2108 if (doextract) {
faef540c 2109
f20b2998 2110 /* This will croak if suidscript is true, as -x cannot be used with
faef540c
NC
2111 setuid scripts. */
2112 forbid_setid('x', suidscript);
f20b2998 2113 /* Hence you can't get here if suidscript is true */
faef540c 2114
95670bde
NC
2115 linestr_sv = newSV_type(SVt_PV);
2116 lex_start_flags |= LEX_START_COPIED;
2f9285f8 2117 find_beginning(linestr_sv, rsfp);
a52eba0e
NC
2118 if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
2119 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
2120 }
f4c556ac 2121 }
6224f72b 2122
ea726b52 2123 PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
3280af22
NIS
2124 CvUNIQUE_on(PL_compcv);
2125
dd2155a4 2126 CvPADLIST(PL_compcv) = pad_new(0);
6224f72b 2127
dd69841b
BB
2128 PL_isarev = newHV();
2129
0c4f7ff0 2130 boot_core_PerlIO();
6224f72b 2131 boot_core_UNIVERSAL();
e1a479c5 2132 boot_core_mro();
4a5df386 2133 newXS("Internals::V", S_Internals_V, __FILE__);
6224f72b
GS
2134
2135 if (xsinit)
acfe0abc 2136 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
64ca3a65 2137#ifndef PERL_MICRO
d0d72822 2138#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN)
c5be433b 2139 init_os_extras();
6224f72b 2140#endif
64ca3a65 2141#endif
6224f72b 2142
29209bc5 2143#ifdef USE_SOCKS
1b9c9cf5
DH
2144# ifdef HAS_SOCKS5_INIT
2145 socks5_init(argv[0]);
2146# else
29209bc5 2147 SOCKSinit(argv[0]);
1b9c9cf5 2148# endif
ac27b0f5 2149#endif
29209bc5 2150
6224f72b
GS
2151 init_predump_symbols();
2152 /* init_postdump_symbols not currently designed to be called */
2153 /* more than once (ENV isn't cleared first, for example) */
2154 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
3280af22 2155 if (!PL_do_undump)
6224f72b
GS
2156 init_postdump_symbols(argc,argv,env);
2157
27da23d5
JH
2158 /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE},
2159 * or explicitly in some platforms.
085a54d9 2160 * locale.c:Perl_init_i18nl10n() if the environment
a05d7ebb 2161 * look like the user wants to use UTF-8. */
a0fd4948 2162#if defined(__SYMBIAN32__)
27da23d5
JH
2163 PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */
2164#endif
e27b5b51 2165# ifndef PERL_IS_MINIPERL
06e66572
JH
2166 if (PL_unicode) {
2167 /* Requires init_predump_symbols(). */
a05d7ebb 2168 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
06e66572
JH
2169 IO* io;
2170 PerlIO* fp;
2171 SV* sv;
2172
a05d7ebb 2173 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
06e66572 2174 * and the default open disciplines. */
a05d7ebb
JH
2175 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
2176 PL_stdingv && (io = GvIO(PL_stdingv)) &&
2177 (fp = IoIFP(io)))
2178 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2179 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
2180 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
2181 (fp = IoOFP(io)))
2182 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2183 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
2184 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
2185 (fp = IoOFP(io)))
2186 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2187 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
fafc274c
NC
2188 (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL,
2189 SVt_PV)))) {
a05d7ebb
JH
2190 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
2191 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
2192 if (in) {
2193 if (out)
76f68e9b 2194 sv_setpvs(sv, ":utf8\0:utf8");
a05d7ebb 2195 else
76f68e9b 2196 sv_setpvs(sv, ":utf8\0");
a05d7ebb
JH
2197 }
2198 else if (out)
76f68e9b 2199 sv_setpvs(sv, "\0:utf8");
a05d7ebb
JH
2200 SvSETMAGIC(sv);
2201 }
b310b053
JH
2202 }
2203 }
e27b5b51 2204#endif
b310b053 2205
c7030b81
NC
2206 {
2207 const char *s;
4ffa73a3
JH
2208 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
2209 if (strEQ(s, "unsafe"))
2210 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
2211 else if (strEQ(s, "safe"))
2212 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
2213 else
2214 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
2215 }
c7030b81 2216 }
4ffa73a3 2217
81d86705 2218#ifdef PERL_MAD
c7030b81
NC
2219 {
2220 const char *s;
81d86705
NC
2221 if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) {
2222 PL_madskills = 1;
2223 PL_minus_c = 1;
2224 if (!s || !s[0])
2225 PL_xmlfp = PerlIO_stdout();
2226 else {
2227 PL_xmlfp = PerlIO_open(s, "w");
2228 if (!PL_xmlfp)
2229 Perl_croak(aTHX_ "Can't open %s", s);
2230 }
1a9a51d4 2231 my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */
81d86705 2232 }
c7030b81
NC
2233 }
2234
2235 {
2236 const char *s;
81d86705
NC
2237 if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) {
2238 PL_madskills = atoi(s);
1a9a51d4 2239 my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */
81d86705 2240 }
c7030b81 2241 }
81d86705
NC
2242#endif
2243
87606032 2244 lex_start(linestr_sv, rsfp, lex_start_flags);
95670bde
NC
2245 if(linestr_sv)
2246 SvREFCNT_dec(linestr_sv);
2247
219f7226 2248 PL_subname = newSVpvs("main");
6224f72b 2249
5486870f
DM
2250 if (add_read_e_script)
2251 filter_add(read_e_script, NULL);
2252
6224f72b
GS
2253 /* now parse the script */
2254
93189314 2255 SETERRNO(0,SS_NORMAL);
28ac2b49 2256 if (yyparse(GRAMPROG) || PL_parser->error_count) {
3280af22 2257 if (PL_minus_c)
cea2e8a9 2258 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
6224f72b 2259 else {
cea2e8a9 2260 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
097ee67d 2261 PL_origfilename);
6224f72b
GS
2262 }
2263 }
57843af0 2264 CopLINE_set(PL_curcop, 0);
03d9f026 2265 SET_CURSTASH(PL_defstash);
3280af22
NIS
2266 if (PL_e_script) {
2267 SvREFCNT_dec(PL_e_script);
a0714e2c 2268 PL_e_script = NULL;
6224f72b
GS
2269 }
2270
3280af22 2271 if (PL_do_undump)
6224f72b
GS
2272 my_unexec();
2273
57843af0
GS
2274 if (isWARN_ONCE) {
2275 SAVECOPFILE(PL_curcop);
2276 SAVECOPLINE(PL_curcop);
3280af22 2277 gv_check(PL_defstash);
57843af0 2278 }
6224f72b
GS
2279
2280 LEAVE;
2281 FREETMPS;
2282
2283#ifdef MYMALLOC
f6a607bc
RGS
2284 {
2285 const char *s;
6224f72b
GS
2286 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
2287 dump_mstats("after compilation:");
f6a607bc 2288 }
6224f72b
GS
2289#endif
2290
2291 ENTER;
febb3a6d 2292 PL_restartjmpenv = NULL;
3280af22 2293 PL_restartop = 0;
312caa8e 2294 return NULL;
6224f72b
GS
2295}
2296
954c1994
GS
2297/*
2298=for apidoc perl_run
2299
2300Tells a Perl interpreter to run. See L<perlembed>.
2301
2302=cut
2303*/
2304
6224f72b 2305int
0cb96387 2306perl_run(pTHXx)
6224f72b 2307{
97aff369 2308 dVAR;
6224f72b 2309 I32 oldscope;
14dd3ad8 2310 int ret = 0;
db36c5a1 2311 dJMPENV;
6224f72b 2312
7918f24d
NC
2313 PERL_ARGS_ASSERT_PERL_RUN;
2314#ifndef MULTIPLICITY
ed6c66dd 2315 PERL_UNUSED_ARG(my_perl);
7918f24d 2316#endif
9d4ba2ae 2317
3280af22 2318 oldscope = PL_scopestack_ix;
96e176bf
CL
2319#ifdef VMS
2320 VMSISH_HUSHED = 0;
2321#endif
6224f72b 2322
14dd3ad8 2323 JMPENV_PUSH(ret);
6224f72b
GS
2324 switch (ret) {
2325 case 1:
2326 cxstack_ix = -1; /* start context stack again */
312caa8e 2327 goto redo_body;
14dd3ad8 2328 case 0: /* normal completion */
14dd3ad8
GS
2329 redo_body:
2330 run_body(oldscope);
14dd3ad8
GS
2331 /* FALL THROUGH */
2332 case 2: /* my_exit() */
3280af22 2333 while (PL_scopestack_ix > oldscope)
6224f72b
GS
2334 LEAVE;
2335 FREETMPS;
03d9f026 2336 SET_CURSTASH(PL_defstash);
3a1ee7e8 2337 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
9ebf26ad 2338 PL_endav && !PL_minus_c) {
ca7b837b 2339 PERL_SET_PHASE(PERL_PHASE_END);
31d77e54 2340 call_list(oldscope, PL_endav);
9ebf26ad 2341 }
6224f72b
GS
2342#ifdef MYMALLOC
2343 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
2344 dump_mstats("after execution: ");
2345#endif
37038d91 2346 ret = STATUS_EXIT;
14dd3ad8 2347 break;
6224f72b 2348 case 3:
312caa8e
CS
2349 if (PL_restartop) {
2350 POPSTACK_TO(PL_mainstack);
2351 goto redo_body;
6224f72b 2352 }
5637ef5b 2353 PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n");
312caa8e 2354 FREETMPS;
14dd3ad8
GS
2355 ret = 1;
2356 break;
6224f72b
GS
2357 }
2358
14dd3ad8
GS
2359 JMPENV_POP;
2360 return ret;
312caa8e
CS
2361}
2362
dd374669 2363STATIC void
14dd3ad8
GS
2364S_run_body(pTHX_ I32 oldscope)
2365{
97aff369 2366 dVAR;
6224f72b 2367 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
3280af22 2368 PL_sawampersand ? "Enabling" : "Omitting"));
6224f72b 2369
3280af22 2370 if (!PL_restartop) {
81d86705
NC
2371#ifdef PERL_MAD
2372 if (PL_xmlfp) {
2373 xmldump_all();
2374 exit(0); /* less likely to core dump than my_exit(0) */
2375 }
2376#endif
cf2782cd 2377#ifdef DEBUGGING
f0e3f042
CS
2378 if (DEBUG_x_TEST || DEBUG_B_TEST)
2379 dump_all_perl(!DEBUG_B_TEST);
ecae49c0
NC
2380 if (!DEBUG_q_TEST)
2381 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
cf2782cd 2382#endif
6224f72b 2383
3280af22 2384 if (PL_minus_c) {
bf49b057 2385 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
6224f72b
GS
2386 my_exit(0);
2387 }
3280af22 2388 if (PERLDB_SINGLE && PL_DBsingle)
ac27b0f5 2389 sv_setiv(PL_DBsingle, 1);
9ebf26ad 2390 if (PL_initav) {
ca7b837b 2391 PERL_SET_PHASE(PERL_PHASE_INIT);
3280af22 2392 call_list(oldscope, PL_initav);
9ebf26ad 2393 }
f1fac472
NC
2394#ifdef PERL_DEBUG_READONLY_OPS
2395 Perl_pending_Slabs_to_ro(aTHX);
2396#endif
6224f72b
GS
2397 }
2398
2399 /* do it */
2400
ca7b837b 2401 PERL_SET_PHASE(PERL_PHASE_RUN);
9ebf26ad 2402
3280af22 2403 if (PL_restartop) {
febb3a6d 2404 PL_restartjmpenv = NULL;
533c011a 2405 PL_op = PL_restartop;
3280af22 2406 PL_restartop = 0;
cea2e8a9 2407 CALLRUNOPS(aTHX);
6224f72b 2408 }
3280af22
NIS
2409 else if (PL_main_start) {
2410 CvDEPTH(PL_main_cv) = 1;
533c011a 2411 PL_op = PL_main_start;
cea2e8a9 2412 CALLRUNOPS(aTHX);
6224f72b 2413 }
f6b3007c
JH
2414 my_exit(0);
2415 /* NOTREACHED */
6224f72b
GS
2416}
2417
954c1994 2418/*
ccfc67b7
JH
2419=head1 SV Manipulation Functions
2420
954c1994
GS
2421=for apidoc p||get_sv
2422
64ace3f8
NC
2423Returns the SV of the specified Perl scalar. C<flags> are passed to
2424C<gv_fetchpv>. If C<GV_ADD> is set and the
2425Perl variable does not exist then it will be created. If C<flags> is zero
2426and the variable does not exist then NULL is returned.
954c1994
GS
2427
2428=cut
2429*/
2430
6224f72b 2431SV*
64ace3f8 2432Perl_get_sv(pTHX_ const char *name, I32 flags)
6224f72b
GS
2433{
2434 GV *gv;
7918f24d
NC
2435
2436 PERL_ARGS_ASSERT_GET_SV;
2437
64ace3f8 2438 gv = gv_fetchpv(name, flags, SVt_PV);
6224f72b
GS
2439 if (gv)
2440 return GvSV(gv);
a0714e2c 2441 return NULL;
6224f72b
GS
2442}
2443
954c1994 2444/*
ccfc67b7
JH
2445=head1 Array Manipulation Functions
2446
954c1994
GS
2447=for apidoc p||get_av
2448
f0b90de1
SF
2449Returns the AV of the specified Perl global or package array with the given
2450name (so it won't work on lexical variables). C<flags> are passed
2451to C<gv_fetchpv>. If C<GV_ADD> is set and the
cbfd0a87
NC
2452Perl variable does not exist then it will be created. If C<flags> is zero
2453and the variable does not exist then NULL is returned.
954c1994 2454
f0b90de1
SF
2455Perl equivalent: C<@{"$name"}>.
2456
954c1994
GS
2457=cut
2458*/
2459
6224f72b 2460AV*
cbfd0a87 2461Perl_get_av(pTHX_ const char *name, I32 flags)
6224f72b 2462{
cbfd0a87 2463 GV* const gv = gv_fetchpv(name, flags, SVt_PVAV);
7918f24d
NC
2464
2465 PERL_ARGS_ASSERT_GET_AV;
2466
cbfd0a87 2467 if (flags)
6224f72b
GS
2468 return GvAVn(gv);
2469 if (gv)
2470 return GvAV(gv);
7d49f689 2471 return NULL;
6224f72b
GS
2472}
2473
954c1994 2474/*
ccfc67b7
JH
2475=head1 Hash Manipulation Functions
2476
954c1994
GS
2477=for apidoc p||get_hv
2478
6673a63c
NC
2479Returns the HV of the specified Perl hash. C<flags> are passed to
2480C<gv_fetchpv>. If C<GV_ADD> is set and the
2481Perl variable does not exist then it will be created. If C<flags> is zero
2482and the variable does not exist then NULL is returned.
954c1994
GS
2483
2484=cut
2485*/
2486
6224f72b 2487HV*
6673a63c 2488Perl_get_hv(pTHX_ const char *name, I32 flags)
6224f72b 2489{
6673a63c 2490 GV* const gv = gv_fetchpv(name, flags, SVt_PVHV);
7918f24d
NC
2491
2492 PERL_ARGS_ASSERT_GET_HV;
2493
6673a63c 2494 if (flags)
a0d0e21e
LW
2495 return GvHVn(gv);
2496 if (gv)
2497 return GvHV(gv);
5c284bb0 2498 return NULL;
a0d0e21e
LW
2499}
2500
954c1994 2501/*
ccfc67b7
JH
2502=head1 CV Manipulation Functions
2503
780a5241
NC
2504=for apidoc p||get_cvn_flags
2505
2506Returns the CV of the specified Perl subroutine. C<flags> are passed to
2507C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
2508exist then it will be declared (which has the same effect as saying
2509C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
2510then NULL is returned.
2511
954c1994
GS
2512=for apidoc p||get_cv
2513
780a5241 2514Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
954c1994
GS
2515
2516=cut
2517*/
2518
a0d0e21e 2519CV*
780a5241 2520Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags)
a0d0e21e 2521{
780a5241 2522 GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV);
f6ec51f7
GS
2523 /* XXX this is probably not what they think they're getting.
2524 * It has the same effect as "sub name;", i.e. just a forward
2525 * declaration! */
7918f24d
NC
2526
2527 PERL_ARGS_ASSERT_GET_CVN_FLAGS;
2528
780a5241 2529 if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
740cce10 2530 SV *const sv = newSVpvn_flags(name, len, flags & SVf_UTF8);
774d564b 2531 return newSUB(start_subparse(FALSE, 0),
780a5241 2532 newSVOP(OP_CONST, 0, sv),
5f66b61c 2533 NULL, NULL);
780a5241 2534 }
a0d0e21e 2535 if (gv)
8ebc5c01 2536 return GvCVu(gv);
601f1833 2537 return NULL;
a0d0e21e
LW
2538}
2539
2c67934f
NC
2540/* Nothing in core calls this now, but we can't replace it with a macro and
2541 move it to mathoms.c as a macro would evaluate name twice. */
780a5241
NC
2542CV*
2543Perl_get_cv(pTHX_ const char *name, I32 flags)
2544{
7918f24d
NC
2545 PERL_ARGS_ASSERT_GET_CV;
2546
780a5241
NC
2547 return get_cvn_flags(name, strlen(name), flags);
2548}
2549
79072805
LW
2550/* Be sure to refetch the stack pointer after calling these routines. */
2551
954c1994 2552/*
ccfc67b7
JH
2553
2554=head1 Callback Functions
2555
954c1994
GS
2556=for apidoc p||call_argv
2557
f0b90de1
SF
2558Performs a callback to the specified named and package-scoped Perl subroutine
2559with C<argv> (a NULL-terminated array of strings) as arguments. See L<perlcall>.
2560
2561Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>.
954c1994
GS
2562
2563=cut
2564*/
2565
a0d0e21e 2566I32
8f42b153 2567Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
ac27b0f5 2568
8ac85365
NIS
2569 /* See G_* flags in cop.h */
2570 /* null terminated arg list */
8990e307 2571{
97aff369 2572 dVAR;
a0d0e21e 2573 dSP;
8990e307 2574
7918f24d
NC
2575 PERL_ARGS_ASSERT_CALL_ARGV;
2576
924508f0 2577 PUSHMARK(SP);
a0d0e21e 2578 if (argv) {
8990e307 2579 while (*argv) {
6e449a3a 2580 mXPUSHs(newSVpv(*argv,0));
8990e307
LW
2581 argv++;
2582 }
a0d0e21e 2583 PUTBACK;
8990e307 2584 }
864dbfa3 2585 return call_pv(sub_name, flags);
8990e307
LW
2586}
2587
954c1994
GS
2588/*
2589=for apidoc p||call_pv
2590
2591Performs a callback to the specified Perl sub. See L<perlcall>.
2592
2593=cut
2594*/
2595
a0d0e21e 2596I32
864dbfa3 2597Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
8ac85365
NIS
2598 /* name of the subroutine */
2599 /* See G_* flags in cop.h */
a0d0e21e 2600{
7918f24d
NC
2601 PERL_ARGS_ASSERT_CALL_PV;
2602
0da0e728 2603 return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags);
a0d0e21e
LW
2604}
2605
954c1994
GS
2606/*
2607=for apidoc p||call_method
2608
2609Performs a callback to the specified Perl method. The blessed object must
2610be on the stack. See L<perlcall>.
2611
2612=cut
2613*/
2614
a0d0e21e 2615I32
864dbfa3 2616Perl_call_method(pTHX_ const char *methname, I32 flags)
8ac85365
NIS
2617 /* name of the subroutine */
2618 /* See G_* flags in cop.h */
a0d0e21e 2619{
46ca9bac 2620 STRLEN len;
7918f24d
NC
2621 PERL_ARGS_ASSERT_CALL_METHOD;
2622
46ca9bac 2623 len = strlen(methname);
2624
2625 /* XXX: sv_2mortal(newSVpvn_share(methname, len)) can be faster */
2626 return call_sv(newSVpvn_flags(methname, len, SVs_TEMP), flags | G_METHOD);
a0d0e21e
LW
2627}
2628
2629/* May be called with any of a CV, a GV, or an SV containing the name. */
954c1994
GS
2630/*
2631=for apidoc p||call_sv
2632
2633Performs a callback to the Perl sub whose name is in the SV. See
2634L<perlcall>.
2635
2636=cut
2637*/
2638
a0d0e21e 2639I32
001d637e 2640Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
8ac85365 2641 /* See G_* flags in cop.h */
a0d0e21e 2642{
27da23d5 2643 dVAR; dSP;
a0d0e21e 2644 LOGOP myop; /* fake syntax tree node */
968b3946 2645 UNOP method_op;
aa689395 2646 I32 oldmark;
8ea43dc8 2647 VOL I32 retval = 0;
a0d0e21e 2648 I32 oldscope;
54310121 2649 bool oldcatch = CATCH_GET;
6224f72b 2650 int ret;
c4420975 2651 OP* const oldop = PL_op;
db36c5a1 2652 dJMPENV;
1e422769 2653
7918f24d
NC
2654 PERL_ARGS_ASSERT_CALL_SV;
2655
a0d0e21e
LW
2656 if (flags & G_DISCARD) {
2657 ENTER;
2658 SAVETMPS;
2659 }
2f8edad0
NC
2660 if (!(flags & G_WANT)) {
2661 /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
2662 */
2663 flags |= G_SCALAR;
2664 }
a0d0e21e 2665
aa689395 2666 Zero(&myop, 1, LOGOP);
5f66b61c 2667 myop.op_next = NULL;
f51d4af5 2668 if (!(flags & G_NOARGS))
aa689395 2669 myop.op_flags |= OPf_STACKED;
4f911530 2670 myop.op_flags |= OP_GIMME_REVERSE(flags);
462e5cf6 2671 SAVEOP();
533c011a 2672 PL_op = (OP*)&myop;
aa689395 2673
3280af22
NIS
2674 EXTEND(PL_stack_sp, 1);
2675 *++PL_stack_sp = sv;
aa689395 2676 oldmark = TOPMARK;
3280af22 2677 oldscope = PL_scopestack_ix;
a0d0e21e 2678
3280af22 2679 if (PERLDB_SUB && PL_curstash != PL_debstash
36477c24 2680 /* Handle first BEGIN of -d. */
3280af22 2681 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
36477c24
PP
2682 /* Try harder, since this may have been a sighandler, thus
2683 * curstash may be meaningless. */
ea726b52 2684 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
491527d0 2685 && !(flags & G_NODEBUG))
533c011a 2686 PL_op->op_private |= OPpENTERSUB_DB;
a0d0e21e 2687
968b3946
GS
2688 if (flags & G_METHOD) {
2689 Zero(&method_op, 1, UNOP);
2690 method_op.op_next = PL_op;
2691 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
377b1098 2692 method_op.op_type = OP_METHOD;
968b3946 2693 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
377b1098 2694 myop.op_type = OP_ENTERSUB;
f39d0b86 2695 PL_op = (OP*)&method_op;
968b3946
GS
2696 }
2697
312caa8e 2698 if (!(flags & G_EVAL)) {
0cdb2077 2699 CATCH_SET(TRUE);
d6f07c05 2700 CALL_BODY_SUB((OP*)&myop);
312caa8e 2701 retval = PL_stack_sp - (PL_stack_base + oldmark);
0253cb41 2702 CATCH_SET(oldcatch);
312caa8e
CS
2703 }
2704 else {
d78bda3d 2705 myop.op_other = (OP*)&myop;
3280af22 2706 PL_markstack_ptr--;
edb2152a 2707 create_eval_scope(flags|G_FAKINGEVAL);
3280af22 2708 PL_markstack_ptr++;
a0d0e21e 2709
14dd3ad8 2710 JMPENV_PUSH(ret);
edb2152a 2711
6224f72b
GS
2712 switch (ret) {
2713 case 0:
14dd3ad8 2714 redo_body:
d6f07c05 2715 CALL_BODY_SUB((OP*)&myop);
312caa8e 2716 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2717 if (!(flags & G_KEEPERR)) {
ab69dbc2 2718 CLEAR_ERRSV();
8433848b 2719 }
a0d0e21e 2720 break;
6224f72b 2721 case 1:
f86702cc 2722 STATUS_ALL_FAILURE;
a0d0e21e 2723 /* FALL THROUGH */
6224f72b 2724 case 2:
a0d0e21e 2725 /* my_exit() was called */
03d9f026 2726 SET_CURSTASH(PL_defstash);
a0d0e21e 2727 FREETMPS;
14dd3ad8 2728 JMPENV_POP;
f86702cc 2729 my_exit_jump();
a0d0e21e 2730 /* NOTREACHED */
6224f72b 2731 case 3:
3280af22 2732 if (PL_restartop) {
febb3a6d 2733 PL_restartjmpenv = NULL;
533c011a 2734 PL_op = PL_restartop;
3280af22 2735 PL_restartop = 0;
312caa8e 2736 goto redo_body;
a0d0e21e 2737 }
3280af22 2738 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2739 if ((flags & G_WANT) == G_ARRAY)
a0d0e21e
LW
2740 retval = 0;
2741 else {
2742 retval = 1;
3280af22 2743 *++PL_stack_sp = &PL_sv_undef;
a0d0e21e 2744 }
312caa8e 2745 break;
a0d0e21e 2746 }
a0d0e21e 2747
edb2152a
NC
2748 if (PL_scopestack_ix > oldscope)
2749 delete_eval_scope();
14dd3ad8 2750 JMPENV_POP;
a0d0e21e 2751 }
1e422769 2752
a0d0e21e 2753 if (flags & G_DISCARD) {
3280af22 2754 PL_stack_sp = PL_stack_base + oldmark;
a0d0e21e
LW
2755 retval = 0;
2756 FREETMPS;
2757 LEAVE;
2758 }
533c011a 2759 PL_op = oldop;
a0d0e21e
LW
2760 return retval;
2761}
2762
6e72f9df 2763/* Eval a string. The G_EVAL flag is always assumed. */
8990e307 2764
954c1994
GS
2765/*
2766=for apidoc p||eval_sv
2767
be064c4a
DM
2768Tells Perl to C<eval> the string in the SV. It supports the same flags
2769as C<call_sv>, with the obvious exception of G_EVAL. See L<perlcall>.
954c1994
GS
2770
2771=cut
2772*/
2773
a0d0e21e 2774I32
864dbfa3 2775Perl_eval_sv(pTHX_ SV *sv, I32 flags)
ac27b0f5 2776
8ac85365 2777 /* See G_* flags in cop.h */
a0d0e21e 2778{
97aff369 2779 dVAR;
924508f0 2780 dSP;
a0d0e21e 2781 UNOP myop; /* fake syntax tree node */
8ea43dc8
SP
2782 VOL I32 oldmark = SP - PL_stack_base;
2783 VOL I32 retval = 0;
6224f72b 2784 int ret;
c4420975 2785 OP* const oldop = PL_op;
db36c5a1 2786 dJMPENV;
84902520 2787
7918f24d
NC
2788 PERL_ARGS_ASSERT_EVAL_SV;
2789
4633a7c4
LW
2790 if (flags & G_DISCARD) {
2791 ENTER;
2792 SAVETMPS;
2793 }
2794
462e5cf6 2795 SAVEOP();
533c011a
NIS
2796 PL_op = (OP*)&myop;
2797 Zero(PL_op, 1, UNOP);
3280af22
NIS
2798 EXTEND(PL_stack_sp, 1);
2799 *++PL_stack_sp = sv;
79072805 2800
4633a7c4
LW
2801 if (!(flags & G_NOARGS))
2802 myop.op_flags = OPf_STACKED;
5f66b61c 2803 myop.op_next = NULL;
6e72f9df 2804 myop.op_type = OP_ENTEREVAL;
4f911530 2805 myop.op_flags |= OP_GIMME_REVERSE(flags);
6e72f9df
PP
2806 if (flags & G_KEEPERR)
2807 myop.op_flags |= OPf_SPECIAL;
d24ca0c5
DM
2808 if (PL_reg_state.re_reparsing)
2809 myop.op_private = OPpEVAL_COPHH;
4633a7c4 2810
dedbcade
DM
2811 /* fail now; otherwise we could fail after the JMPENV_PUSH but
2812 * before a PUSHEVAL, which corrupts the stack after a croak */
2813 TAINT_PROPER("eval_sv()");
2814
14dd3ad8 2815 JMPENV_PUSH(ret);
6224f72b
GS
2816 switch (ret) {
2817 case 0:
14dd3ad8 2818 redo_body:
2ba65d5f
DM
2819 if (PL_op == (OP*)(&myop)) {
2820 PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX);
2821 if (!PL_op)
2822 goto fail; /* failed in compilation */
2823 }
4aca2f62 2824 CALLRUNOPS(aTHX);
312caa8e 2825 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2826 if (!(flags & G_KEEPERR)) {
ab69dbc2 2827 CLEAR_ERRSV();
8433848b 2828 }
4633a7c4 2829 break;
6224f72b 2830 case 1:
f86702cc 2831 STATUS_ALL_FAILURE;
4633a7c4 2832 /* FALL THROUGH */
6224f72b 2833 case 2:
4633a7c4 2834 /* my_exit() was called */
03d9f026 2835 SET_CURSTASH(PL_defstash);
4633a7c4 2836 FREETMPS;
14dd3ad8 2837 JMPENV_POP;
f86702cc 2838 my_exit_jump();
4633a7c4 2839 /* NOTREACHED */
6224f72b 2840 case 3:
3280af22 2841 if (PL_restartop) {
febb3a6d 2842 PL_restartjmpenv = NULL;
533c011a 2843 PL_op = PL_restartop;
3280af22 2844 PL_restartop = 0;
312caa8e 2845 goto redo_body;
4633a7c4 2846 }
4aca2f62 2847 fail:
3280af22 2848 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2849 if ((flags & G_WANT) == G_ARRAY)
4633a7c4
LW
2850 retval = 0;
2851 else {
2852 retval = 1;
3280af22 2853 *++PL_stack_sp = &PL_sv_undef;
4633a7c4 2854 }
312caa8e 2855 break;
4633a7c4
LW
2856 }
2857
14dd3ad8 2858 JMPENV_POP;
4633a7c4 2859 if (flags & G_DISCARD) {
3280af22 2860 PL_stack_sp = PL_stack_base + oldmark;
4633a7c4
LW
2861 retval = 0;
2862 FREETMPS;
2863 LEAVE;
2864 }
533c011a 2865 PL_op = oldop;
4633a7c4
LW
2866 return retval;
2867}
2868
954c1994
GS
2869/*
2870=for apidoc p||eval_pv
2871
2872Tells Perl to C<eval> the given string and return an SV* result.
2873
2874=cut
2875*/
2876
137443ea 2877SV*
864dbfa3 2878Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
137443ea 2879{
97aff369 2880 dVAR;
137443ea
PP
2881 dSP;
2882 SV* sv = newSVpv(p, 0);
2883
7918f24d
NC
2884 PERL_ARGS_ASSERT_EVAL_PV;
2885
864dbfa3 2886 eval_sv(sv, G_SCALAR);
137443ea
PP
2887 SvREFCNT_dec(sv);
2888
2889 SPAGAIN;
2890 sv = POPs;
2891 PUTBACK;
2892
2d8e6c8d 2893 if (croak_on_error && SvTRUE(ERRSV)) {
f1f66076 2894 Perl_croak(aTHX_ "%s", SvPVx_nolen_const(ERRSV));
2d8e6c8d 2895 }
137443ea
PP
2896
2897 return sv;
2898}
2899
4633a7c4
LW
2900/* Require a module. */
2901
954c1994 2902/*
ccfc67b7
JH
2903=head1 Embedding Functions
2904
954c1994
GS
2905=for apidoc p||require_pv
2906
7d3fb230
BS
2907Tells Perl to C<require> the file named by the string argument. It is
2908analogous to the Perl code C<eval "require '$file'">. It's even
2307c6d0 2909implemented that way; consider using load_module instead.
954c1994 2910
7d3fb230 2911=cut */
954c1994 2912
4633a7c4 2913void
864dbfa3 2914Perl_require_pv(pTHX_ const char *pv)
4633a7c4 2915{
97aff369 2916 dVAR;
d3acc0f7 2917 dSP;
97aff369 2918 SV* sv;
7918f24d
NC
2919
2920 PERL_ARGS_ASSERT_REQUIRE_PV;
2921
e788e7d3 2922 PUSHSTACKi(PERLSI_REQUIRE);
d3acc0f7 2923 PUTBACK;
be41e5d9
NC
2924 sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
2925 eval_sv(sv_2mortal(sv), G_DISCARD);
d3acc0f7
JP
2926 SPAGAIN;
2927 POPSTACK;
79072805
LW
2928}
2929
76e3520e 2930STATIC void
b6f82619 2931S_usage(pTHX) /* XXX move this out into a module ? */
4633a7c4 2932{
ab821d7f 2933 /* This message really ought to be max 23 lines.
75c72d73 2934 * Removed -h because the user already knows that option. Others? */
fb73857a 2935
1566c39d
NC
2936 /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
2937 minimum of 509 character string literals. */
27da23d5 2938 static const char * const usage_msg[] = {
1566c39d
NC
2939" -0[octal] specify record separator (\\0, if no argument)\n"
2940" -a autosplit mode with -n or -p (splits $_ into @F)\n"
2941" -C[number/list] enables the listed Unicode features\n"
2942" -c check syntax only (runs BEGIN and CHECK blocks)\n"
2943" -d[:debugger] run program under debugger\n"
2944" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
2945" -e program one line of program (several -e's allowed, omit programfile)\n"
2946" -E program like -e, but enables all optional features\n"
2947" -f don't do $sitelib/sitecustomize.pl at startup\n"
2948" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
2949" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
2950" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
2951" -l[octal] enable line ending processing, specifies line terminator\n"
2952" -[mM][-]module execute \"use/no module...\" before executing program\n"
2953" -n assume \"while (<>) { ... }\" loop around program\n"
2954" -p assume loop like -n but print line also, like sed\n"
2955" -s enable rudimentary parsing for switches after programfile\n"
2956" -S look for programfile using PATH environment variable\n",
2957" -t enable tainting warnings\n"
2958" -T enable tainting checks\n"
2959" -u dump core after parsing program\n"
2960" -U allow unsafe operations\n"
2961" -v print version, patchlevel and license\n"
2962" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
60eaec42 2963" -w enable many useful warnings\n"
1566c39d
NC
2964" -W enable all warnings\n"
2965" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
2966" -X disable all warnings\n"
2967" \n"
2968"Run 'perldoc perl' for more help with Perl.\n\n",
fb73857a
PP
2969NULL
2970};
27da23d5 2971 const char * const *p = usage_msg;
1566c39d 2972 PerlIO *out = PerlIO_stdout();
fb73857a 2973
1566c39d
NC
2974 PerlIO_printf(out,
2975 "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
b6f82619 2976 PL_origargv[0]);
fb73857a 2977 while (*p)
1566c39d 2978 PerlIO_puts(out, *p++);
b6f82619 2979 my_exit(0);
4633a7c4
LW
2980}
2981
b4ab917c
DM
2982/* convert a string of -D options (or digits) into an int.
2983 * sets *s to point to the char after the options */
2984
2985#ifdef DEBUGGING
2986int
e1ec3a88 2987Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
b4ab917c 2988{
27da23d5 2989 static const char * const usage_msgd[] = {
651b8f1a
NC
2990 " Debugging flag values: (see also -d)\n"
2991 " p Tokenizing and parsing (with v, displays parse stack)\n"
2992 " s Stack snapshots (with v, displays all stacks)\n"
2993 " l Context (loop) stack processing\n"
2994 " t Trace execution\n"
2995 " o Method and overloading resolution\n",
2996 " c String/numeric conversions\n"
2997 " P Print profiling info, source file input state\n"
2998 " m Memory and SV allocation\n"
2999 " f Format processing\n"
3000 " r Regular expression parsing and execution\n"
3001 " x Syntax tree dump\n",
3002 " u Tainting checks\n"
3003 " H Hash dump -- usurps values()\n"
3004 " X Scratchpad allocation\n"
3005 " D Cleaning up\n"
3006 " T Tokenising\n"
3007 " R Include reference counts of dumped variables (eg when using -Ds)\n",
3008 " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
3009 " v Verbose: use in conjunction with other flags\n"
3010 " C Copy On Write\n"
3011 " A Consistency checks on internal structures\n"
3012 " q quiet - currently only suppresses the 'EXECUTING' message\n"
3013 " M trace smart match resolution\n"
3014 " B dump suBroutine definitions, including special Blocks like BEGIN\n",
e6e64d9b
JC
3015 NULL
3016 };
b4ab917c 3017 int i = 0;
7918f24d
NC
3018
3019 PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
3020
b4ab917c
DM
3021 if (isALPHA(**s)) {
3022 /* if adding extra options, remember to update DEBUG_MASK */
cc8773c0 3023 static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMB";
b4ab917c
DM
3024
3025 for (; isALNUM(**s); (*s)++) {
c4420975 3026 const char * const d = strchr(debopts,**s);
b4ab917c
DM
3027 if (d)
3028 i |= 1 << (d - debopts);
3029 else if (ckWARN_d(WARN_DEBUGGING))
e6e64d9b
JC
3030 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3031 "invalid option -D%c, use -D'' to see choices\n", **s);
b4ab917c
DM
3032 }
3033 }
e6e64d9b 3034 else if (isDIGIT(**s)) {
b4ab917c
DM
3035 i = atoi(*s);
3036 for (; isALNUM(**s); (*s)++) ;
3037 }
ddcf8bc1 3038 else if (givehelp) {
06e869a4 3039 const char *const *p = usage_msgd;
651b8f1a 3040 while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
e6e64d9b 3041 }
b4ab917c
DM
3042# ifdef EBCDIC
3043 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
3044 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3045 "-Dp not implemented on this platform\n");
3046# endif
3047 return i;
3048}
3049#endif
3050
79072805
LW
3051/* This routine handles any switches that can be given during run */
3052
c7030b81
NC
3053const char *
3054Perl_moreswitches(pTHX_ const char *s)
79072805 3055{
27da23d5 3056 dVAR;
84c133a0 3057 UV rschar;
0544e6df 3058 const char option = *s; /* used to remember option in -m/-M code */
79072805 3059
7918f24d
NC
3060 PERL_ARGS_ASSERT_MORESWITCHES;
3061
79072805
LW
3062 switch (*s) {
3063 case '0':
a863c7d1 3064 {
f2095865 3065 I32 flags = 0;
a3b680e6 3066 STRLEN numlen;
f2095865
JH
3067
3068 SvREFCNT_dec(PL_rs);
3069 if (s[1] == 'x' && s[2]) {
a3b680e6 3070 const char *e = s+=2;
f2095865
JH
3071 U8 *tmps;
3072
a3b680e6
AL
3073 while (*e)
3074 e++;
f2095865
JH
3075 numlen = e - s;
3076 flags = PERL_SCAN_SILENT_ILLDIGIT;
3077 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
3078 if (s + numlen < e) {
3079 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
3080 numlen = 0;
3081 s--;
3082 }
396482e1 3083 PL_rs = newSVpvs("");
c5661c80 3084 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
f2095865
JH
3085 tmps = (U8*)SvPVX(PL_rs);
3086 uvchr_to_utf8(tmps, rschar);
3087 SvCUR_set(PL_rs, UNISKIP(rschar));
3088 SvUTF8_on(PL_rs);
3089 }
3090 else {
3091 numlen = 4;
3092 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
3093 if (rschar & ~((U8)~0))
3094 PL_rs = &PL_sv_undef;
3095 else if (!rschar && numlen >= 2)
396482e1 3096 PL_rs = newSVpvs("");
f2095865
JH
3097 else {
3098 char ch = (char)rschar;
3099 PL_rs = newSVpvn(&ch, 1);
3100 }
3101 }
64ace3f8 3102 sv_setsv(get_sv("/", GV_ADD), PL_rs);
f2095865 3103 return s + numlen;
a863c7d1 3104 }
46487f74 3105 case 'C':
a05d7ebb 3106 s++;
dd374669 3107 PL_unicode = parse_unicode_opts( (const char **)&s );
5a22a2bb
NC
3108 if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
3109 PL_utf8cache = -1;
46487f74 3110 return s;
2304df62 3111 case 'F':
3280af22 3112 PL_minus_F = TRUE;
ebce5377
RGS
3113 PL_splitstr = ++s;
3114 while (*s && !isSPACE(*s)) ++s;
e49e380e 3115 PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr);
2304df62 3116 return s;
79072805 3117 case 'a':
3280af22 3118 PL_minus_a = TRUE;
79072805
LW
3119 s++;
3120 return s;
3121 case 'c':
3280af22 3122 PL_minus_c = TRUE;
79072805
LW
3123 s++;
3124 return s;
3125 case 'd':
f20b2998 3126 forbid_setid('d', FALSE);
4633a7c4 3127 s++;
2cbb2ee1
RGS
3128
3129 /* -dt indicates to the debugger that threads will be used */
3130 if (*s == 't' && !isALNUM(s[1])) {
3131 ++s;
3132 my_setenv("PERL5DB_THREADED", "1");
3133 }
3134
70c94a19
RR
3135 /* The following permits -d:Mod to accepts arguments following an =
3136 in the fashion that -MSome::Mod does. */
3137 if (*s == ':' || *s == '=') {
b19934fb
NC
3138 const char *start;
3139 const char *end;
3140 SV *sv;
3141
3142 if (*++s == '-') {
3143 ++s;
3144 sv = newSVpvs("no Devel::");
3145 } else {
3146 sv = newSVpvs("use Devel::");
3147 }
3148
3149 start = s;
3150 end = s + strlen(s);
f85893a1 3151
b19934fb 3152 /* We now allow -d:Module=Foo,Bar and -d:-Module */
70c94a19
RR
3153 while(isALNUM(*s) || *s==':') ++s;
3154 if (*s != '=')
f85893a1 3155 sv_catpvn(sv, start, end - start);
70c94a19
RR
3156 else {
3157 sv_catpvn(sv, start, s-start);
95a2b409
RGS
3158 /* Don't use NUL as q// delimiter here, this string goes in the
3159 * environment. */
3160 Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s);
70c94a19 3161 }
f85893a1 3162 s = end;
184f32ec 3163 my_setenv("PERL5DB", SvPV_nolen_const(sv));
c4db126b 3164 SvREFCNT_dec(sv);
4633a7c4 3165 }
ed094faf 3166 if (!PL_perldb) {
3280af22 3167 PL_perldb = PERLDB_ALL;
a0d0e21e 3168 init_debugger();
ed094faf 3169 }
79072805
LW
3170 return s;
3171 case 'D':
0453d815 3172 {
79072805 3173#ifdef DEBUGGING
f20b2998 3174 forbid_setid('D', FALSE);
b4ab917c 3175 s++;
dd374669 3176 PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG;
12a43e32 3177#else /* !DEBUGGING */
0453d815 3178 if (ckWARN_d(WARN_DEBUGGING))
9014280d 3179 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
e6e64d9b 3180 "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n");
a0d0e21e 3181 for (s++; isALNUM(*s); s++) ;
79072805 3182#endif
79072805 3183 return s;
0453d815 3184 }
4633a7c4 3185 case 'h':
b6f82619 3186 usage();
79072805 3187 case 'i':
43c5f42d 3188 Safefree(PL_inplace);
c030f24b
GH
3189#if defined(__CYGWIN__) /* do backup extension automagically */
3190 if (*(s+1) == '\0') {
c86a4f2e 3191 PL_inplace = savepvs(".bak");
c030f24b
GH
3192 return s+1;
3193 }
3194#endif /* __CYGWIN__ */
5ef5d758 3195 {
d4c19fe8 3196 const char * const start = ++s;
5ef5d758
NC
3197 while (*s && !isSPACE(*s))
3198 ++s;
3199
3200 PL_inplace = savepvn(start, s - start);
3201 }
7b8d334a 3202 if (*s) {
5ef5d758 3203 ++s;
7b8d334a 3204 if (*s == '-') /* Additional switches on #! line. */
5ef5d758 3205 s++;
7b8d334a 3206 }
fb73857a 3207 return s;
4e49a025 3208 case 'I': /* -I handled both here and in parse_body() */
f20b2998 3209 forbid_setid('I', FALSE);
fb73857a
PP
3210 ++s;
3211 while (*s && isSPACE(*s))
3212 ++s;
3213 if (*s) {
c7030b81 3214 const char *e, *p;
0df16ed7
GS
3215 p = s;
3216 /* ignore trailing spaces (possibly followed by other switches) */
3217 do {
3218 for (e = p; *e && !isSPACE(*e); e++) ;
3219 p = e;
3220 while (isSPACE(*p))
3221 p++;
3222 } while (*p && *p != '-');
55b4bc1c 3223 incpush(s, e-s,
e28f3139 3224 INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT);
0df16ed7
GS
3225 s = p;
3226 if (*s == '-')
3227 s++;
79072805
LW
3228 }
3229 else
a67e862a 3230 Perl_croak(aTHX_ "No directory specified for -I");
fb73857a 3231 return s;
79072805 3232 case 'l':
3280af22 3233 PL_minus_l = TRUE;
79072805 3234 s++;
7889fe52
NIS
3235 if (PL_ors_sv) {
3236 SvREFCNT_dec(PL_ors_sv);
a0714e2c 3237 PL_ors_sv = NULL;
7889fe52 3238 }
79072805 3239 if (isDIGIT(*s)) {
53305cf1 3240 I32 flags = 0;
a3b680e6 3241 STRLEN numlen;
396482e1 3242 PL_ors_sv = newSVpvs("\n");
53305cf1
NC
3243 numlen = 3 + (*s == '0');
3244 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
79072805
LW
3245 s += numlen;
3246 }
3247 else {
8bfdd7d9 3248 if (RsPARA(PL_rs)) {
396482e1 3249 PL_ors_sv = newSVpvs("\n\n");
7889fe52
NIS
3250 }
3251 else {
8bfdd7d9 3252 PL_ors_sv = newSVsv(PL_rs);
c07a80fd 3253 }
79072805
LW
3254 }
3255 return s;
1a30305b 3256 case 'M':
f20b2998 3257 forbid_setid('M', FALSE); /* XXX ? */
1a30305b
PP
3258 /* FALL THROUGH */
3259 case 'm':
f20b2998 3260 forbid_setid('m', FALSE); /* XXX ? */
1a30305b 3261 if (*++s) {
c7030b81 3262 const char *start;
b64cb68c 3263 const char *end;
11343788 3264 SV *sv;
e1ec3a88 3265 const char *use = "use ";
0544e6df 3266 bool colon = FALSE;
a5f75d66 3267 /* -M-foo == 'no foo' */
d0043bd1
NC
3268 /* Leading space on " no " is deliberate, to make both
3269 possibilities the same length. */
3270 if (*s == '-') { use = " no "; ++s; }
3271 sv = newSVpvn(use,4);
a5f75d66 3272 start = s;
1a30305b 3273 /* We allow -M'Module qw(Foo Bar)' */
0544e6df
RB
3274 while(isALNUM(*s) || *s==':') {
3275 if( *s++ == ':' ) {
3276 if( *s == ':' )
3277 s++;
3278 else
3279 colon = TRUE;
3280 }
3281 }
3282 if (s == start)
3283 Perl_croak(aTHX_ "Module name required with -%c option",
3284 option);
3285 if (colon)
3286 Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
3287 "contains single ':'",
63da6837 3288 (int)(s - start), start, option);
b64cb68c 3289 end = s + strlen(s);
c07a80fd 3290 if (*s != '=') {
b64cb68c 3291 sv_catpvn(sv, start, end - start);
0544e6df 3292 if (option == 'm') {
c07a80fd 3293 if (*s != '\0')
cea2e8a9 3294 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
396482e1 3295 sv_catpvs( sv, " ()");
c07a80fd
PP
3296 }
3297 } else {
11343788 3298 sv_catpvn(sv, start, s-start);
b64cb68c
NC
3299 /* Use NUL as q''-delimiter. */
3300 sv_catpvs(sv, " split(/,/,q\0");
3301 ++s;
3302 sv_catpvn(sv, s, end - s);
396482e1 3303 sv_catpvs(sv, "\0)");
c07a80fd 3304 }
b64cb68c 3305 s = end;
29a861e7 3306 Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
1a30305b
PP
3307 }
3308 else
0544e6df 3309 Perl_croak(aTHX_ "Missing argument to -%c", option);
1a30305b 3310 return s;
79072805 3311 case 'n':
3280af22 3312 PL_minus_n = TRUE;
79072805
LW
3313 s++;
3314 return s;
3315 case 'p':
3280af22 3316 PL_minus_p = TRUE;
79072805
LW
3317 s++;
3318 return s;
3319 case 's':
f20b2998 3320 forbid_setid('s', FALSE);
3280af22 3321 PL_doswitches = TRUE;
79072805
LW
3322 s++;
3323 return s;
6537fe72 3324 case 't':
27a6968b 3325 case 'T':
6537fe72 3326 if (!PL_tainting)
27a6968b 3327 TOO_LATE_FOR(*s);
6537fe72 3328 s++;
463ee0b2 3329 return s;
79072805 3330 case 'u':
3280af22 3331 PL_do_undump = TRUE;
79072805
LW
3332 s++;
3333 return s;
3334 case 'U':
3280af22 3335 PL_unsafe = TRUE;
79072805
LW
3336 s++;
3337 return s;
3338 case 'v':
c4bc78d9
NC
3339 minus_v();
3340 case 'w':
3341 if (! (PL_dowarn & G_WARN_ALL_MASK)) {
3342 PL_dowarn |= G_WARN_ON;
3343 }
3344 s++;
3345 return s;
3346 case 'W':
3347 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
3348 if (!specialWARN(PL_compiling.cop_warnings))
3349 PerlMemShared_free(PL_compiling.cop_warnings);
3350 PL_compiling.cop_warnings = pWARN_ALL ;
3351 s++;
3352 return s;
3353 case 'X':
3354 PL_dowarn = G_WARN_ALL_OFF;
3355 if (!specialWARN(PL_compiling.cop_warnings))
3356 PerlMemShared_free(PL_compiling.cop_warnings);
3357 PL_compiling.cop_warnings = pWARN_NONE ;
3358 s++;
3359 return s;
3360 case '*':
3361 case ' ':
3362 while( *s == ' ' )
3363 ++s;
3364 if (s[0] == '-') /* Additional switches on #! line. */
3365 return s+1;
3366 break;
3367 case '-':
3368 case 0:
3369#if defined(WIN32) || !defined(PERL_STRICT_CR)
3370 case '\r':
3371#endif
3372 case '\n':
3373 case '\t':
3374 break;
3375#ifdef ALTERNATE_SHEBANG
3376 case 'S': /* OS/2 needs -S on "extproc" line. */
3377 break;
3378#endif
4bb78d63
CB
3379 case 'e': case 'f': case 'x': case 'E':
3380#ifndef ALTERNATE_SHEBANG
3381 case 'S':
3382#endif
3383 case 'V':
c4bc78d9 3384 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
b7e077d0
FC
3385 default:
3386 Perl_croak(aTHX_
3387 "Unrecognized switch: -%.1s (-h will show valid options)",s
3388 );
c4bc78d9
NC
3389 }
3390 return NULL;
3391}
3392
3393
3394STATIC void
3395S_minus_v(pTHX)
3396{
d7aa5382 3397 if (!sv_derived_from(PL_patchlevel, "version"))
ac0e6a2f 3398 upg_version(PL_patchlevel, TRUE);
8e9464f1 3399#if !defined(DGUX)
46807d8e
YO
3400 {
3401 SV* level= vstringify(PL_patchlevel);
3402#ifdef PERL_PATCHNUM
23d483e2
NC
3403# ifdef PERL_GIT_UNCOMMITTED_CHANGES
3404 SV *num = newSVpvs(PERL_PATCHNUM "*");
3405# else
3406 SV *num = newSVpvs(PERL_PATCHNUM);
3407# endif
46807d8e
YO
3408
3409 if (sv_len(num)>=sv_len(level) && strnEQ(SvPV_nolen(num),SvPV_nolen(level),sv_len(level))) {
3410 SvREFCNT_dec(level);
3411 level= num;
3412 } else {
d0a9311f 3413 Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num);
46807d8e
YO
3414 SvREFCNT_dec(num);
3415 }
3416 #endif
3417 PerlIO_printf(PerlIO_stdout(),
ded326e4
DG
3418 "\nThis is perl " STRINGIFY(PERL_REVISION)
3419 ", version " STRINGIFY(PERL_VERSION)
3420 ", subversion " STRINGIFY(PERL_SUBVERSION)
3421 " (%"SVf") built for " ARCHNAME, level
3422 );
46807d8e
YO
3423 SvREFCNT_dec(level);
3424 }
8e9464f1
JH
3425#else /* DGUX */
3426/* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */
3427 PerlIO_printf(PerlIO_stdout(),
52ea0aec 3428 Perl_form(aTHX_ "\nThis is perl, %"SVf"\n",
be2597df 3429 SVfARG(vstringify(PL_patchlevel))));
8e9464f1
JH
3430 PerlIO_printf(PerlIO_stdout(),
3431 Perl_form(aTHX_ " built under %s at %s %s\n",
3432 OSNAME, __DATE__, __TIME__));
3433 PerlIO_printf(PerlIO_stdout(),
3434 Perl_form(aTHX_ " OS Specific Release: %s\n",
40a39f85 3435 OSVERS));
8e9464f1 3436#endif /* !DGUX */
fb73857a
PP
3437#if defined(LOCAL_PATCH_COUNT)
3438 if (LOCAL_PATCH_COUNT > 0)
b0e47665
GS
3439 PerlIO_printf(PerlIO_stdout(),
3440 "\n(with %d registered patch%s, "
3441 "see perl -V for more detail)",
bb7a0f54 3442 LOCAL_PATCH_COUNT,
b0e47665 3443 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
a5f75d66 3444#endif
1a30305b 3445
b0e47665 3446 PerlIO_printf(PerlIO_stdout(),
fdfb76e4 3447 "\n\nCopyright 1987-2012, Larry Wall\n");
79072805 3448#ifdef MSDOS
b0e47665
GS
3449 PerlIO_printf(PerlIO_stdout(),
3450 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
55497cff
PP
3451#endif
3452#ifdef DJGPP
b0e47665
GS
3453 PerlIO_printf(PerlIO_stdout(),
3454 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
3455 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
4633a7c4 3456#endif
79072805 3457#ifdef OS2
b0e47665
GS
3458 PerlIO_printf(PerlIO_stdout(),
3459 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
be3c0a43 3460 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
79072805 3461#endif
79072805 3462#ifdef atarist
b0e47665
GS
3463 PerlIO_printf(PerlIO_stdout(),
3464 "atariST series port, ++jrb bammi@cadence.com\n");
79072805 3465#endif
a3f9223b 3466#ifdef __BEOS__
b0e47665
GS
3467 PerlIO_printf(PerlIO_stdout(),
3468 "BeOS port Copyright Tom Spindler, 1997-1999\n");
a3f9223b 3469#endif
1d84e8df 3470#ifdef MPE
b0e47665 3471 PerlIO_printf(PerlIO_stdout(),
e583a879 3472 "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n");
1d84e8df 3473#endif
9d116dd7 3474#ifdef OEMVS
b0e47665
GS
3475 PerlIO_printf(PerlIO_stdout(),
3476 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
9d116dd7 3477#endif
495c5fdc 3478#ifdef __VOS__
b0e47665 3479 PerlIO_printf(PerlIO_stdout(),
94efb9fb 3480 "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n");
495c5fdc 3481#endif
092bebab 3482#ifdef __OPEN_VM
b0e47665
GS
3483 PerlIO_printf(PerlIO_stdout(),
3484 "VM/ESA port by Neale Ferguson, 1998-1999\n");
092bebab 3485#endif
a1a0e61e 3486#ifdef POSIX_BC
b0e47665
GS
3487 PerlIO_printf(PerlIO_stdout(),
3488 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
a1a0e61e 3489#endif
f83d2536 3490#ifdef EPOC
b0e47665 3491 PerlIO_printf(PerlIO_stdout(),
be3c0a43 3492 "EPOC port by Olaf Flebbe, 1999-2002\n");
f83d2536 3493#endif
e1caacb4 3494#ifdef UNDER_CE
b475b3e6
JH
3495 PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n");
3496 PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n");
e1caacb4
JH
3497 wce_hitreturn();
3498#endif
a0fd4948 3499#ifdef __SYMBIAN32__
27da23d5
JH
3500 PerlIO_printf(PerlIO_stdout(),
3501 "Symbian port by Nokia, 2004-2005\n");
3502#endif
baed7233
DL
3503#ifdef BINARY_BUILD_NOTICE
3504 BINARY_BUILD_NOTICE;
3505#endif
b0e47665
GS
3506 PerlIO_printf(PerlIO_stdout(),
3507 "\n\
79072805 3508Perl may be copied only under the terms of either the Artistic License or the\n\
3d6f292d 3509GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
95103687 3510Complete documentation for Perl, including FAQ lists, should be found on\n\
a0288114 3511this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\
c9e30dd8 3512Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n");
7ca617d0 3513 my_exit(0);
79072805
LW
3514}
3515
3516/* compliments of Tom Christiansen */
3517
3518/* unexec() can be found in the Gnu emacs distribution */
ee580363 3519/* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
79072805 3520
25bbd826
CB
3521#ifdef VMS
3522#include <lib$routines.h>
3523#endif
3524
79072805 3525void
864dbfa3 3526Perl_my_unexec(p