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Add regex nodes for locale
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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"
7b8dd5f4 36#include "charclass_invlists.h"
378cc40b 37
011f1a1a
JH
38#ifdef NETWARE
39#include "nwutil.h"
011f1a1a
JH
40#endif
41
2aa47728 42#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
bf357333
NC
43# ifdef I_SYSUIO
44# include <sys/uio.h>
45# endif
46
47union control_un {
48 struct cmsghdr cm;
49 char control[CMSG_SPACE(sizeof(int))];
50};
51
2aa47728
NC
52#endif
53
5311654c
JH
54#ifndef HZ
55# ifdef CLK_TCK
56# define HZ CLK_TCK
57# else
58# define HZ 60
59# endif
60#endif
61
7114a2d2 62#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
20ce7b12 63char *getenv (char *); /* Usually in <stdlib.h> */
54310121
PP
64#endif
65
acfe0abc 66static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
0cb96387 67
cc69b689 68#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
b24bc095 69# define validate_suid(rsfp) NOOP
cc69b689 70#else
b24bc095 71# define validate_suid(rsfp) S_validate_suid(aTHX_ rsfp)
a687059c 72#endif
8d063cd8 73
d6f07c05
AL
74#define CALL_BODY_SUB(myop) \
75 if (PL_op == (myop)) \
139d0ce6 76 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
d6f07c05
AL
77 if (PL_op) \
78 CALLRUNOPS(aTHX);
79
80#define CALL_LIST_BODY(cv) \
81 PUSHMARK(PL_stack_sp); \
9a8aa25b 82 call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD|G_VOID);
d6f07c05 83
e6827a76 84static void
daa7d858 85S_init_tls_and_interp(PerlInterpreter *my_perl)
e6827a76 86{
27da23d5 87 dVAR;
e6827a76
NC
88 if (!PL_curinterp) {
89 PERL_SET_INTERP(my_perl);
3db8f154 90#if defined(USE_ITHREADS)
e6827a76
NC
91 INIT_THREADS;
92 ALLOC_THREAD_KEY;
93 PERL_SET_THX(my_perl);
94 OP_REFCNT_INIT;
e8570548 95 OP_CHECK_MUTEX_INIT;
71ad1b0c 96 HINTS_REFCNT_INIT;
e6827a76 97 MUTEX_INIT(&PL_dollarzero_mutex);
016af4f1
DM
98 MUTEX_INIT(&PL_my_ctx_mutex);
99# endif
e6827a76 100 }
c0bce9aa
NC
101#if defined(USE_ITHREADS)
102 else
103#else
104 /* This always happens for non-ithreads */
105#endif
106 {
e6827a76
NC
107 PERL_SET_THX(my_perl);
108 }
109}
06d86050 110
cbec8ebe
DM
111
112/* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */
113
114void
115Perl_sys_init(int* argc, char*** argv)
116{
4fc0badb 117 dVAR;
7918f24d
NC
118
119 PERL_ARGS_ASSERT_SYS_INIT;
120
cbec8ebe
DM
121 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
122 PERL_UNUSED_ARG(argv);
123 PERL_SYS_INIT_BODY(argc, argv);
124}
125
126void
127Perl_sys_init3(int* argc, char*** argv, char*** env)
128{
4fc0badb 129 dVAR;
7918f24d
NC
130
131 PERL_ARGS_ASSERT_SYS_INIT3;
132
cbec8ebe
DM
133 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
134 PERL_UNUSED_ARG(argv);
135 PERL_UNUSED_ARG(env);
136 PERL_SYS_INIT3_BODY(argc, argv, env);
137}
138
139void
88772978 140Perl_sys_term(void)
cbec8ebe 141{
4fc0badb 142 dVAR;
bf81751b
DM
143 if (!PL_veto_cleanup) {
144 PERL_SYS_TERM_BODY();
145 }
cbec8ebe
DM
146}
147
148
32e30700
GS
149#ifdef PERL_IMPLICIT_SYS
150PerlInterpreter *
7766f137
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151perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
152 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
32e30700
GS
153 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
154 struct IPerlDir* ipD, struct IPerlSock* ipS,
155 struct IPerlProc* ipP)
156{
157 PerlInterpreter *my_perl;
7918f24d
NC
158
159 PERL_ARGS_ASSERT_PERL_ALLOC_USING;
160
9f653bb5 161 /* Newx() needs interpreter, so call malloc() instead */
32e30700 162 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
e6827a76 163 S_init_tls_and_interp(my_perl);
32e30700
GS
164 Zero(my_perl, 1, PerlInterpreter);
165 PL_Mem = ipM;
7766f137
GS
166 PL_MemShared = ipMS;
167 PL_MemParse = ipMP;
32e30700
GS
168 PL_Env = ipE;
169 PL_StdIO = ipStd;
170 PL_LIO = ipLIO;
171 PL_Dir = ipD;
172 PL_Sock = ipS;
173 PL_Proc = ipP;
7cb608b5 174 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
7766f137 175
32e30700
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176 return my_perl;
177}
178#else
954c1994
GS
179
180/*
ccfc67b7
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181=head1 Embedding Functions
182
954c1994
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183=for apidoc perl_alloc
184
185Allocates a new Perl interpreter. See L<perlembed>.
186
187=cut
188*/
189
93a17b20 190PerlInterpreter *
cea2e8a9 191perl_alloc(void)
79072805 192{
cea2e8a9 193 PerlInterpreter *my_perl;
79072805 194
9f653bb5 195 /* Newx() needs interpreter, so call malloc() instead */
e8ee3774 196 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
ba869deb 197
e6827a76 198 S_init_tls_and_interp(my_perl);
7cb608b5 199#ifndef PERL_TRACK_MEMPOOL
07409e01 200 return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter);
7cb608b5
NC
201#else
202 Zero(my_perl, 1, PerlInterpreter);
203 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
204 return my_perl;
205#endif
79072805 206}
32e30700 207#endif /* PERL_IMPLICIT_SYS */
79072805 208
954c1994
GS
209/*
210=for apidoc perl_construct
211
212Initializes a new Perl interpreter. See L<perlembed>.
213
214=cut
215*/
216
79072805 217void
0cb96387 218perl_construct(pTHXx)
79072805 219{
27da23d5 220 dVAR;
7918f24d
NC
221
222 PERL_ARGS_ASSERT_PERL_CONSTRUCT;
223
8990e307 224#ifdef MULTIPLICITY
54aff467 225 init_interp();
ac27b0f5 226 PL_perl_destruct_level = 1;
54aff467 227#else
7918f24d 228 PERL_UNUSED_ARG(my_perl);
54aff467
GS
229 if (PL_perl_destruct_level > 0)
230 init_interp();
231#endif
34caed6d
DM
232 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
233
75d476e2
SM
234#ifdef PERL_TRACE_OPS
235 Zero(PL_op_exec_cnt, OP_max+2, UV);
236#endif
237
0d96b528 238 init_constants();
34caed6d
DM
239
240 SvREADONLY_on(&PL_sv_placeholder);
fe54beba 241 SvREFCNT(&PL_sv_placeholder) = SvREFCNT_IMMORTAL;
34caed6d
DM
242
243 PL_sighandlerp = (Sighandler_t) Perl_sighandler;
ca0c25f6 244#ifdef PERL_USES_PL_PIDSTATUS
34caed6d 245 PL_pidstatus = newHV();
ca0c25f6 246#endif
79072805 247
396482e1 248 PL_rs = newSVpvs("\n");
dc92893f 249
cea2e8a9 250 init_stacks();
79072805 251
748a9306 252 init_ids();
a5f75d66 253
312caa8e 254 JMPENV_BOOTSTRAP;
f86702cc
PP
255 STATUS_ALL_SUCCESS;
256
0672f40e 257 init_i18nl10n(1);
0b5b802d 258
ab821d7f 259#if defined(LOCAL_PATCH_COUNT)
3280af22 260 PL_localpatches = local_patches; /* For possible -v */
ab821d7f
PP
261#endif
262
52853b95
GS
263#ifdef HAVE_INTERP_INTERN
264 sys_intern_init();
265#endif
266
3a1ee7e8 267 PerlIO_init(aTHX); /* Hook to IO system */
760ac839 268
3280af22
NIS
269 PL_fdpid = newAV(); /* for remembering popen pids by fd */
270 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
396482e1 271 PL_errors = newSVpvs("");
76f68e9b
MHM
272 sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
273 sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
274 sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
1fcf4c12 275#ifdef USE_ITHREADS
402d2eb1
NC
276 /* First entry is a list of empty elements. It needs to be initialised
277 else all hell breaks loose in S_find_uninit_var(). */
278 Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs(""));
13137afc 279 PL_regex_pad = AvARRAY(PL_regex_padav);
d4d03940 280 Newxz(PL_stashpad, PL_stashpadmax, HV *);
1fcf4c12 281#endif
e5dd39fc 282#ifdef USE_REENTRANT_API
59bd0823 283 Perl_reentrant_init(aTHX);
e5dd39fc 284#endif
7dc86639
YO
285#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
286 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
287 * This MUST be done before any hash stores or fetches take place.
288 * If you set PL_hash_seed (and presumably also PL_hash_seed_set)
289 * yourself, it is your responsibility to provide a good random seed!
290 * You can also define PERL_HASH_SEED in compile time, see hv.h.
291 *
292 * XXX: fix this comment */
293 if (PL_hash_seed_set == FALSE) {
294 Perl_get_hash_seed(aTHX_ PL_hash_seed);
295 PL_hash_seed_set= TRUE;
296 }
297#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3d47000e
AB
298
299 /* Note that strtab is a rather special HV. Assumptions are made
300 about not iterating on it, and not adding tie magic to it.
301 It is properly deallocated in perl_destruct() */
302 PL_strtab = newHV();
303
3d47000e
AB
304 HvSHAREKEYS_off(PL_strtab); /* mandatory */
305 hv_ksplit(PL_strtab, 512);
306
a38ab475
RZ
307 Zero(PL_sv_consts, SV_CONSTS_COUNT, SV*);
308
2f42fcb0
JH
309#ifndef PERL_MICRO
310# ifdef USE_ENVIRON_ARRAY
0631ea03 311 PL_origenviron = environ;
2f42fcb0 312# endif
0631ea03
AB
313#endif
314
5311654c 315 /* Use sysconf(_SC_CLK_TCK) if available, if not
dbc1d986 316 * available or if the sysconf() fails, use the HZ.
27da23d5
JH
317 * The HZ if not originally defined has been by now
318 * been defined as CLK_TCK, if available. */
b6c36746 319#if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
5311654c
JH
320 PL_clocktick = sysconf(_SC_CLK_TCK);
321 if (PL_clocktick <= 0)
322#endif
323 PL_clocktick = HZ;
324
081fc587
AB
325 PL_stashcache = newHV();
326
e8e3635e 327 PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
d7aa5382 328
27da23d5
JH
329#ifdef HAS_MMAP
330 if (!PL_mmap_page_size) {
331#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE))
332 {
333 SETERRNO(0, SS_NORMAL);
334# ifdef _SC_PAGESIZE
335 PL_mmap_page_size = sysconf(_SC_PAGESIZE);
336# else
337 PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE);
338# endif
339 if ((long) PL_mmap_page_size < 0) {
340 if (errno) {
44f8325f 341 SV * const error = ERRSV;
d4c19fe8 342 SvUPGRADE(error, SVt_PV);
0510663f 343 Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
27da23d5
JH
344 }
345 else
346 Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
347 }
348 }
349#else
350# ifdef HAS_GETPAGESIZE
351 PL_mmap_page_size = getpagesize();
352# else
353# if defined(I_SYS_PARAM) && defined(PAGESIZE)
354 PL_mmap_page_size = PAGESIZE; /* compiletime, bad */
355# endif
356# endif
357#endif
358 if (PL_mmap_page_size <= 0)
359 Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
360 (IV) PL_mmap_page_size);
361 }
362#endif /* HAS_MMAP */
363
364#if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
365 PL_timesbase.tms_utime = 0;
366 PL_timesbase.tms_stime = 0;
367 PL_timesbase.tms_cutime = 0;
368 PL_timesbase.tms_cstime = 0;
369#endif
370
7d113631
NC
371 PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME));
372
a3e6e81e 373 PL_registered_mros = newHV();
9e169432
NC
374 /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
375 HvMAX(PL_registered_mros) = 0;
a3e6e81e 376
7b8dd5f4
KW
377 PL_XPosix_ptrs[_CC_ASCII] = _new_invlist_C_array(ASCII_invlist);
378 PL_XPosix_ptrs[_CC_ALPHANUMERIC] = _new_invlist_C_array(XPosixAlnum_invlist);
379 PL_XPosix_ptrs[_CC_ALPHA] = _new_invlist_C_array(XPosixAlpha_invlist);
380 PL_XPosix_ptrs[_CC_BLANK] = _new_invlist_C_array(XPosixBlank_invlist);
381 PL_XPosix_ptrs[_CC_CASED] = _new_invlist_C_array(Cased_invlist);
382 PL_XPosix_ptrs[_CC_CNTRL] = _new_invlist_C_array(XPosixCntrl_invlist);
383 PL_XPosix_ptrs[_CC_DIGIT] = _new_invlist_C_array(XPosixDigit_invlist);
384 PL_XPosix_ptrs[_CC_GRAPH] = _new_invlist_C_array(XPosixGraph_invlist);
385 PL_XPosix_ptrs[_CC_LOWER] = _new_invlist_C_array(XPosixLower_invlist);
386 PL_XPosix_ptrs[_CC_PRINT] = _new_invlist_C_array(XPosixPrint_invlist);
387 PL_XPosix_ptrs[_CC_PUNCT] = _new_invlist_C_array(XPosixPunct_invlist);
388 PL_XPosix_ptrs[_CC_SPACE] = _new_invlist_C_array(XPerlSpace_invlist);
389 PL_XPosix_ptrs[_CC_PSXSPC] = _new_invlist_C_array(XPosixSpace_invlist);
390 PL_XPosix_ptrs[_CC_UPPER] = _new_invlist_C_array(XPosixUpper_invlist);
391 PL_XPosix_ptrs[_CC_VERTSPACE] = _new_invlist_C_array(VertSpace_invlist);
392 PL_XPosix_ptrs[_CC_WORDCHAR] = _new_invlist_C_array(XPosixWord_invlist);
393 PL_XPosix_ptrs[_CC_XDIGIT] = _new_invlist_C_array(XPosixXDigit_invlist);
394
8990e307 395 ENTER;
79072805
LW
396}
397
954c1994 398/*
62375a60
NIS
399=for apidoc nothreadhook
400
401Stub that provides thread hook for perl_destruct when there are
402no threads.
403
404=cut
405*/
406
407int
4e9e3734 408Perl_nothreadhook(pTHX)
62375a60 409{
96a5add6 410 PERL_UNUSED_CONTEXT;
62375a60
NIS
411 return 0;
412}
413
41e4abd8
NC
414#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
415void
416Perl_dump_sv_child(pTHX_ SV *sv)
417{
418 ssize_t got;
bf357333
NC
419 const int sock = PL_dumper_fd;
420 const int debug_fd = PerlIO_fileno(Perl_debug_log);
bf357333
NC
421 union control_un control;
422 struct msghdr msg;
808ad2d0 423 struct iovec vec[2];
bf357333 424 struct cmsghdr *cmptr;
808ad2d0
NC
425 int returned_errno;
426 unsigned char buffer[256];
41e4abd8 427
7918f24d
NC
428 PERL_ARGS_ASSERT_DUMP_SV_CHILD;
429
bf357333 430 if(sock == -1 || debug_fd == -1)
41e4abd8
NC
431 return;
432
433 PerlIO_flush(Perl_debug_log);
434
bf357333
NC
435 /* All these shenanigans are to pass a file descriptor over to our child for
436 it to dump out to. We can't let it hold open the file descriptor when it
437 forks, as the file descriptor it will dump to can turn out to be one end
438 of pipe that some other process will wait on for EOF. (So as it would
b293a5f8 439 be open, the wait would be forever.) */
bf357333
NC
440
441 msg.msg_control = control.control;
442 msg.msg_controllen = sizeof(control.control);
443 /* We're a connected socket so we don't need a destination */
444 msg.msg_name = NULL;
445 msg.msg_namelen = 0;
446 msg.msg_iov = vec;
808ad2d0 447 msg.msg_iovlen = 1;
bf357333
NC
448
449 cmptr = CMSG_FIRSTHDR(&msg);
450 cmptr->cmsg_len = CMSG_LEN(sizeof(int));
451 cmptr->cmsg_level = SOL_SOCKET;
452 cmptr->cmsg_type = SCM_RIGHTS;
453 *((int *)CMSG_DATA(cmptr)) = 1;
454
455 vec[0].iov_base = (void*)&sv;
456 vec[0].iov_len = sizeof(sv);
457 got = sendmsg(sock, &msg, 0);
41e4abd8
NC
458
459 if(got < 0) {
bf357333 460 perror("Debug leaking scalars parent sendmsg failed");
41e4abd8
NC
461 abort();
462 }
bf357333
NC
463 if(got < sizeof(sv)) {
464 perror("Debug leaking scalars parent short sendmsg");
41e4abd8
NC
465 abort();
466 }
467
808ad2d0
NC
468 /* Return protocol is
469 int: errno value
470 unsigned char: length of location string (0 for empty)
471 unsigned char*: string (not terminated)
472 */
473 vec[0].iov_base = (void*)&returned_errno;
474 vec[0].iov_len = sizeof(returned_errno);
475 vec[1].iov_base = buffer;
476 vec[1].iov_len = 1;
477
478 got = readv(sock, vec, 2);
41e4abd8
NC
479
480 if(got < 0) {
481 perror("Debug leaking scalars parent read failed");
808ad2d0 482 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
483 abort();
484 }
808ad2d0 485 if(got < sizeof(returned_errno) + 1) {
41e4abd8 486 perror("Debug leaking scalars parent short read");
808ad2d0 487 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
488 abort();
489 }
490
808ad2d0
NC
491 if (*buffer) {
492 got = read(sock, buffer + 1, *buffer);
493 if(got < 0) {
494 perror("Debug leaking scalars parent read 2 failed");
495 PerlIO_flush(PerlIO_stderr());
496 abort();
497 }
498
499 if(got < *buffer) {
500 perror("Debug leaking scalars parent short read 2");
501 PerlIO_flush(PerlIO_stderr());
502 abort();
503 }
504 }
505
506 if (returned_errno || *buffer) {
507 Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno"
508 " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1,
0c0d42ff 509 returned_errno, Strerror(returned_errno));
41e4abd8
NC
510 }
511}
512#endif
513
62375a60 514/*
954c1994
GS
515=for apidoc perl_destruct
516
517Shuts down a Perl interpreter. See L<perlembed>.
518
519=cut
520*/
521
31d77e54 522int
0cb96387 523perl_destruct(pTHXx)
79072805 524{
27da23d5 525 dVAR;
be2ea8ed 526 VOL signed char destruct_level; /* see possible values in intrpvar.h */
a0d0e21e 527 HV *hv;
2aa47728 528#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
2aa47728
NC
529 pid_t child;
530#endif
9c0b6888 531 int i;
8990e307 532
7918f24d
NC
533 PERL_ARGS_ASSERT_PERL_DESTRUCT;
534#ifndef MULTIPLICITY
ed6c66dd 535 PERL_UNUSED_ARG(my_perl);
7918f24d 536#endif
9d4ba2ae 537
3d22c4f0
GG
538 assert(PL_scopestack_ix == 1);
539
7766f137
GS
540 /* wait for all pseudo-forked children to finish */
541 PERL_WAIT_FOR_CHILDREN;
542
3280af22 543 destruct_level = PL_perl_destruct_level;
36e77d41 544#if defined(DEBUGGING) || defined(PERL_TRACK_MEMPOOL)
4633a7c4 545 {
9d4ba2ae
AL
546 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
547 if (s) {
96e440d2
JH
548 int i;
549 if (strEQ(s, "-1")) { /* Special case: modperl folklore. */
550 i = -1;
551 } else {
552 i = grok_atou(s, NULL);
553 }
36e77d41
DD
554#ifdef DEBUGGING
555 if (destruct_level < i) destruct_level = i;
556#endif
557#ifdef PERL_TRACK_MEMPOOL
f5199772
KW
558 /* RT #114496, for perl_free */
559 PL_perl_destruct_level = i;
36e77d41 560#endif
5f05dabc 561 }
4633a7c4
LW
562 }
563#endif
564
27da23d5 565 if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
f3faeb53
AB
566 dJMPENV;
567 int x = 0;
568
569 JMPENV_PUSH(x);
1b6737cc 570 PERL_UNUSED_VAR(x);
9ebf26ad 571 if (PL_endav && !PL_minus_c) {
ca7b837b 572 PERL_SET_PHASE(PERL_PHASE_END);
f3faeb53 573 call_list(PL_scopestack_ix, PL_endav);
9ebf26ad 574 }
f3faeb53 575 JMPENV_POP;
26f423df 576 }
f3faeb53 577 LEAVE;
a0d0e21e 578 FREETMPS;
3d22c4f0 579 assert(PL_scopestack_ix == 0);
a0d0e21e 580
e00b64d4 581 /* Need to flush since END blocks can produce output */
f13a2bc0 582 my_fflush_all();
e00b64d4 583
75d476e2
SM
584#ifdef PERL_TRACE_OPS
585 /* If we traced all Perl OP usage, report and clean up */
586 PerlIO_printf(Perl_debug_log, "Trace of all OPs executed:\n");
587 for (i = 0; i <= OP_max; ++i) {
588 PerlIO_printf(Perl_debug_log, " %s: %"UVuf"\n", PL_op_name[i], PL_op_exec_cnt[i]);
589 PL_op_exec_cnt[i] = 0;
590 }
591 /* Utility slot for easily doing little tracing experiments in the runloop: */
592 if (PL_op_exec_cnt[OP_max+1] != 0)
593 PerlIO_printf(Perl_debug_log, " SPECIAL: %"UVuf"\n", PL_op_exec_cnt[OP_max+1]);
594 PerlIO_printf(Perl_debug_log, "\n");
595#endif
596
597
16c91539 598 if (PL_threadhook(aTHX)) {
62375a60 599 /* Threads hook has vetoed further cleanup */
c301d606 600 PL_veto_cleanup = TRUE;
37038d91 601 return STATUS_EXIT;
62375a60
NIS
602 }
603
2aa47728
NC
604#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
605 if (destruct_level != 0) {
606 /* Fork here to create a child. Our child's job is to preserve the
607 state of scalars prior to destruction, so that we can instruct it
608 to dump any scalars that we later find have leaked.
609 There's no subtlety in this code - it assumes POSIX, and it doesn't
610 fail gracefully */
611 int fd[2];
612
613 if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
614 perror("Debug leaking scalars socketpair failed");
615 abort();
616 }
617
618 child = fork();
619 if(child == -1) {
620 perror("Debug leaking scalars fork failed");
621 abort();
622 }
623 if (!child) {
624 /* We are the child */
3125a5a4
NC
625 const int sock = fd[1];
626 const int debug_fd = PerlIO_fileno(Perl_debug_log);
627 int f;
808ad2d0
NC
628 const char *where;
629 /* Our success message is an integer 0, and a char 0 */
b61433a9 630 static const char success[sizeof(int) + 1] = {0};
3125a5a4 631
2aa47728 632 close(fd[0]);
2aa47728 633
3125a5a4
NC
634 /* We need to close all other file descriptors otherwise we end up
635 with interesting hangs, where the parent closes its end of a
636 pipe, and sits waiting for (another) child to terminate. Only
637 that child never terminates, because it never gets EOF, because
bf357333
NC
638 we also have the far end of the pipe open. We even need to
639 close the debugging fd, because sometimes it happens to be one
640 end of a pipe, and a process is waiting on the other end for
641 EOF. Normally it would be closed at some point earlier in
642 destruction, but if we happen to cause the pipe to remain open,
643 EOF never occurs, and we get an infinite hang. Hence all the
644 games to pass in a file descriptor if it's actually needed. */
3125a5a4
NC
645
646 f = sysconf(_SC_OPEN_MAX);
647 if(f < 0) {
808ad2d0
NC
648 where = "sysconf failed";
649 goto abort;
3125a5a4
NC
650 }
651 while (f--) {
652 if (f == sock)
653 continue;
3125a5a4
NC
654 close(f);
655 }
656
2aa47728
NC
657 while (1) {
658 SV *target;
bf357333
NC
659 union control_un control;
660 struct msghdr msg;
661 struct iovec vec[1];
662 struct cmsghdr *cmptr;
663 ssize_t got;
664 int got_fd;
665
666 msg.msg_control = control.control;
667 msg.msg_controllen = sizeof(control.control);
668 /* We're a connected socket so we don't need a source */
669 msg.msg_name = NULL;
670 msg.msg_namelen = 0;
671 msg.msg_iov = vec;
c3caa5c3 672 msg.msg_iovlen = C_ARRAY_LENGTH(vec);
bf357333
NC
673
674 vec[0].iov_base = (void*)&target;
675 vec[0].iov_len = sizeof(target);
676
677 got = recvmsg(sock, &msg, 0);
2aa47728
NC
678
679 if(got == 0)
680 break;
681 if(got < 0) {
808ad2d0
NC
682 where = "recv failed";
683 goto abort;
2aa47728
NC
684 }
685 if(got < sizeof(target)) {
808ad2d0
NC
686 where = "short recv";
687 goto abort;
2aa47728 688 }
bf357333 689
808ad2d0
NC
690 if(!(cmptr = CMSG_FIRSTHDR(&msg))) {
691 where = "no cmsg";
692 goto abort;
693 }
694 if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) {
695 where = "wrong cmsg_len";
696 goto abort;
697 }
698 if(cmptr->cmsg_level != SOL_SOCKET) {
699 where = "wrong cmsg_level";
700 goto abort;
701 }
702 if(cmptr->cmsg_type != SCM_RIGHTS) {
703 where = "wrong cmsg_type";
704 goto abort;
705 }
bf357333
NC
706
707 got_fd = *(int*)CMSG_DATA(cmptr);
708 /* For our last little bit of trickery, put the file descriptor
709 back into Perl_debug_log, as if we never actually closed it
710 */
808ad2d0
NC
711 if(got_fd != debug_fd) {
712 if (dup2(got_fd, debug_fd) == -1) {
713 where = "dup2";
714 goto abort;
715 }
716 }
2aa47728 717 sv_dump(target);
bf357333 718
2aa47728
NC
719 PerlIO_flush(Perl_debug_log);
720
808ad2d0 721 got = write(sock, &success, sizeof(success));
2aa47728
NC
722
723 if(got < 0) {
808ad2d0
NC
724 where = "write failed";
725 goto abort;
2aa47728 726 }
808ad2d0
NC
727 if(got < sizeof(success)) {
728 where = "short write";
729 goto abort;
2aa47728
NC
730 }
731 }
732 _exit(0);
808ad2d0
NC
733 abort:
734 {
735 int send_errno = errno;
736 unsigned char length = (unsigned char) strlen(where);
737 struct iovec failure[3] = {
738 {(void*)&send_errno, sizeof(send_errno)},
739 {&length, 1},
740 {(void*)where, length}
741 };
742 int got = writev(sock, failure, 3);
743 /* Bad news travels fast. Faster than data. We'll get a SIGPIPE
744 in the parent if we try to read from the socketpair after the
745 child has exited, even if there was data to read.
746 So sleep a bit to give the parent a fighting chance of
747 reading the data. */
748 sleep(2);
749 _exit((got == -1) ? errno : 0);
750 }
bf357333 751 /* End of child. */
2aa47728 752 }
41e4abd8 753 PL_dumper_fd = fd[0];
2aa47728
NC
754 close(fd[1]);
755 }
756#endif
757
ff0cee69
PP
758 /* We must account for everything. */
759
760 /* Destroy the main CV and syntax tree */
37e77c23
FC
761 /* Set PL_curcop now, because destroying ops can cause new SVs
762 to be generated in Perl_pad_swipe, and when running with
763 -DDEBUG_LEAKING_SCALARS they expect PL_curcop to point to a valid
764 op from which the filename structure member is copied. */
17fbfdf6 765 PL_curcop = &PL_compiling;
3280af22 766 if (PL_main_root) {
4e380990
DM
767 /* ensure comppad/curpad to refer to main's pad */
768 if (CvPADLIST(PL_main_cv)) {
769 PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1);
325e1816 770 PL_comppad_name = PadlistNAMES(CvPADLIST(PL_main_cv));
4e380990 771 }
3280af22 772 op_free(PL_main_root);
5f66b61c 773 PL_main_root = NULL;
a0d0e21e 774 }
5f66b61c 775 PL_main_start = NULL;
aac9d523
DM
776 /* note that PL_main_cv isn't usually actually freed at this point,
777 * due to the CvOUTSIDE refs from subs compiled within it. It will
778 * get freed once all the subs are freed in sv_clean_all(), for
779 * destruct_level > 0 */
3280af22 780 SvREFCNT_dec(PL_main_cv);
601f1833 781 PL_main_cv = NULL;
ca7b837b 782 PERL_SET_PHASE(PERL_PHASE_DESTRUCT);
ff0cee69 783
13621cfb
NIS
784 /* Tell PerlIO we are about to tear things apart in case
785 we have layers which are using resources that should
786 be cleaned up now.
787 */
788
789 PerlIO_destruct(aTHX);
790
ddf23d4a
SM
791 /*
792 * Try to destruct global references. We do this first so that the
793 * destructors and destructees still exist. Some sv's might remain.
794 * Non-referenced objects are on their own.
795 */
796 sv_clean_objs();
8990e307 797
5cd24f17 798 /* unhook hooks which will soon be, or use, destroyed data */
3280af22 799 SvREFCNT_dec(PL_warnhook);
a0714e2c 800 PL_warnhook = NULL;
3280af22 801 SvREFCNT_dec(PL_diehook);
a0714e2c 802 PL_diehook = NULL;
5cd24f17 803
4b556e6c 804 /* call exit list functions */
3280af22 805 while (PL_exitlistlen-- > 0)
acfe0abc 806 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
4b556e6c 807
3280af22 808 Safefree(PL_exitlist);
4b556e6c 809
1c4916e5
CB
810 PL_exitlist = NULL;
811 PL_exitlistlen = 0;
812
a3e6e81e
NC
813 SvREFCNT_dec(PL_registered_mros);
814
551a8b83 815 /* jettison our possibly duplicated environment */
4b647fb0
DM
816 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
817 * so we certainly shouldn't free it here
818 */
2f42fcb0 819#ifndef PERL_MICRO
4b647fb0 820#if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
50acdf95 821 if (environ != PL_origenviron && !PL_use_safe_putenv
4efc5df6
GS
822#ifdef USE_ITHREADS
823 /* only main thread can free environ[0] contents */
824 && PL_curinterp == aTHX
825#endif
826 )
827 {
551a8b83
JH
828 I32 i;
829
830 for (i = 0; environ[i]; i++)
4b420006 831 safesysfree(environ[i]);
0631ea03 832
4b420006
JH
833 /* Must use safesysfree() when working with environ. */
834 safesysfree(environ);
551a8b83
JH
835
836 environ = PL_origenviron;
837 }
838#endif
2f42fcb0 839#endif /* !PERL_MICRO */
551a8b83 840
30985c42
JH
841 if (destruct_level == 0) {
842
843 DEBUG_P(debprofdump());
844
845#if defined(PERLIO_LAYERS)
846 /* No more IO - including error messages ! */
847 PerlIO_cleanup(aTHX);
848#endif
849
850 CopFILE_free(&PL_compiling);
30985c42
JH
851
852 /* The exit() function will do everything that needs doing. */
853 return STATUS_EXIT;
854 }
855
9fa9f06b
KW
856 /* Below, do clean up for when PERL_DESTRUCT_LEVEL is not 0 */
857
5f8cb046
DM
858#ifdef USE_ITHREADS
859 /* the syntax tree is shared between clones
860 * so op_free(PL_main_root) only ReREFCNT_dec's
861 * REGEXPs in the parent interpreter
862 * we need to manually ReREFCNT_dec for the clones
863 */
0547a729
DM
864 {
865 I32 i = AvFILLp(PL_regex_padav);
866 SV **ary = AvARRAY(PL_regex_padav);
867
868 for (; i; i--) {
869 SvREFCNT_dec(ary[i]);
870 ary[i] = &PL_sv_undef;
871 }
872 }
5f8cb046
DM
873#endif
874
0547a729 875
ad64d0ec 876 SvREFCNT_dec(MUTABLE_SV(PL_stashcache));
081fc587
AB
877 PL_stashcache = NULL;
878
5f05dabc
PP
879 /* loosen bonds of global variables */
880
2f9285f8
DM
881 /* XXX can PL_parser still be non-null here? */
882 if(PL_parser && PL_parser->rsfp) {
883 (void)PerlIO_close(PL_parser->rsfp);
884 PL_parser->rsfp = NULL;
8ebc5c01
PP
885 }
886
84386e14
RGS
887 if (PL_minus_F) {
888 Safefree(PL_splitstr);
889 PL_splitstr = NULL;
890 }
891
8ebc5c01 892 /* switches */
3280af22
NIS
893 PL_minus_n = FALSE;
894 PL_minus_p = FALSE;
895 PL_minus_l = FALSE;
896 PL_minus_a = FALSE;
897 PL_minus_F = FALSE;
898 PL_doswitches = FALSE;
599cee73 899 PL_dowarn = G_WARN_OFF;
1a904fc8 900#ifdef PERL_SAWAMPERSAND
d3b97530 901 PL_sawampersand = 0; /* must save all match strings */
1a904fc8 902#endif
3280af22
NIS
903 PL_unsafe = FALSE;
904
905 Safefree(PL_inplace);
bd61b366 906 PL_inplace = NULL;
a7cb1f99 907 SvREFCNT_dec(PL_patchlevel);
3280af22
NIS
908
909 if (PL_e_script) {
910 SvREFCNT_dec(PL_e_script);
a0714e2c 911 PL_e_script = NULL;
8ebc5c01
PP
912 }
913
bf9cdc68
RG
914 PL_perldb = 0;
915
8ebc5c01
PP
916 /* magical thingies */
917
e23d9e2f
CS
918 SvREFCNT_dec(PL_ofsgv); /* *, */
919 PL_ofsgv = NULL;
5f05dabc 920
7889fe52 921 SvREFCNT_dec(PL_ors_sv); /* $\ */
a0714e2c 922 PL_ors_sv = NULL;
8ebc5c01 923
3280af22 924 SvREFCNT_dec(PL_rs); /* $/ */
a0714e2c 925 PL_rs = NULL;
dc92893f 926
d33b2eba 927 Safefree(PL_osname); /* $^O */
bd61b366 928 PL_osname = NULL;
5f05dabc 929
3280af22 930 SvREFCNT_dec(PL_statname);
a0714e2c
SS
931 PL_statname = NULL;
932 PL_statgv = NULL;
5f05dabc 933
8ebc5c01
PP
934 /* defgv, aka *_ should be taken care of elsewhere */
935
7d5ea4e7
GS
936 /* float buffer */
937 Safefree(PL_efloatbuf);
bd61b366 938 PL_efloatbuf = NULL;
7d5ea4e7
GS
939 PL_efloatsize = 0;
940
8ebc5c01 941 /* startup and shutdown function lists */
3280af22 942 SvREFCNT_dec(PL_beginav);
5a837c8f 943 SvREFCNT_dec(PL_beginav_save);
3280af22 944 SvREFCNT_dec(PL_endav);
7d30b5c4 945 SvREFCNT_dec(PL_checkav);
ece599bd 946 SvREFCNT_dec(PL_checkav_save);
3c10abe3
AG
947 SvREFCNT_dec(PL_unitcheckav);
948 SvREFCNT_dec(PL_unitcheckav_save);
3280af22 949 SvREFCNT_dec(PL_initav);
7d49f689
NC
950 PL_beginav = NULL;
951 PL_beginav_save = NULL;
952 PL_endav = NULL;
953 PL_checkav = NULL;
954 PL_checkav_save = NULL;
3c10abe3
AG
955 PL_unitcheckav = NULL;
956 PL_unitcheckav_save = NULL;
7d49f689 957 PL_initav = NULL;
5618dfe8 958
8ebc5c01 959 /* shortcuts just get cleared */
a0714e2c
SS
960 PL_hintgv = NULL;
961 PL_errgv = NULL;
a0714e2c
SS
962 PL_argvoutgv = NULL;
963 PL_stdingv = NULL;
964 PL_stderrgv = NULL;
965 PL_last_in_gv = NULL;
a0714e2c
SS
966 PL_DBsingle = NULL;
967 PL_DBtrace = NULL;
968 PL_DBsignal = NULL;
a6d69523
TC
969 PL_DBsingle_iv = 0;
970 PL_DBtrace_iv = 0;
971 PL_DBsignal_iv = 0;
601f1833 972 PL_DBcv = NULL;
7d49f689 973 PL_dbargs = NULL;
5c284bb0 974 PL_debstash = NULL;
8ebc5c01 975
cf93a474 976 SvREFCNT_dec(PL_envgv);
f03015cd 977 SvREFCNT_dec(PL_incgv);
722fa0e9 978 SvREFCNT_dec(PL_argvgv);
475b1e90 979 SvREFCNT_dec(PL_replgv);
8cece913
FC
980 SvREFCNT_dec(PL_DBgv);
981 SvREFCNT_dec(PL_DBline);
982 SvREFCNT_dec(PL_DBsub);
cf93a474 983 PL_envgv = NULL;
f03015cd 984 PL_incgv = NULL;
722fa0e9 985 PL_argvgv = NULL;
475b1e90 986 PL_replgv = NULL;
8cece913
FC
987 PL_DBgv = NULL;
988 PL_DBline = NULL;
989 PL_DBsub = NULL;
990
7a1c5554 991 SvREFCNT_dec(PL_argvout_stack);
7d49f689 992 PL_argvout_stack = NULL;
8ebc5c01 993
5c831c24 994 SvREFCNT_dec(PL_modglobal);
5c284bb0 995 PL_modglobal = NULL;
5c831c24 996 SvREFCNT_dec(PL_preambleav);
7d49f689 997 PL_preambleav = NULL;
5c831c24 998 SvREFCNT_dec(PL_subname);
a0714e2c 999 PL_subname = NULL;
ca0c25f6 1000#ifdef PERL_USES_PL_PIDSTATUS
5c831c24 1001 SvREFCNT_dec(PL_pidstatus);
5c284bb0 1002 PL_pidstatus = NULL;
ca0c25f6 1003#endif
5c831c24 1004 SvREFCNT_dec(PL_toptarget);
a0714e2c 1005 PL_toptarget = NULL;
5c831c24 1006 SvREFCNT_dec(PL_bodytarget);
a0714e2c
SS
1007 PL_bodytarget = NULL;
1008 PL_formtarget = NULL;
5c831c24 1009
d33b2eba 1010 /* free locale stuff */
b9582b6a 1011#ifdef USE_LOCALE_COLLATE
d33b2eba 1012 Safefree(PL_collation_name);
bd61b366 1013 PL_collation_name = NULL;
b9582b6a 1014#endif
d33b2eba 1015
b9582b6a 1016#ifdef USE_LOCALE_NUMERIC
d33b2eba 1017 Safefree(PL_numeric_name);
bd61b366 1018 PL_numeric_name = NULL;
a453c169 1019 SvREFCNT_dec(PL_numeric_radix_sv);
a0714e2c 1020 PL_numeric_radix_sv = NULL;
b9582b6a 1021#endif
d33b2eba 1022
9c0b6888
KW
1023 /* clear character classes */
1024 for (i = 0; i < POSIX_SWASH_COUNT; i++) {
1025 SvREFCNT_dec(PL_utf8_swash_ptrs[i]);
1026 PL_utf8_swash_ptrs[i] = NULL;
1027 }
5c831c24
GS
1028 SvREFCNT_dec(PL_utf8_mark);
1029 SvREFCNT_dec(PL_utf8_toupper);
4dbdbdc2 1030 SvREFCNT_dec(PL_utf8_totitle);
5c831c24 1031 SvREFCNT_dec(PL_utf8_tolower);
b4e400f9 1032 SvREFCNT_dec(PL_utf8_tofold);
82686b01
JH
1033 SvREFCNT_dec(PL_utf8_idstart);
1034 SvREFCNT_dec(PL_utf8_idcont);
c60f4405 1035 SvREFCNT_dec(PL_utf8_foldable);
2726813d 1036 SvREFCNT_dec(PL_utf8_foldclosures);
9fa9f06b 1037 SvREFCNT_dec(PL_AboveLatin1);
e0a1ff7a 1038 SvREFCNT_dec(PL_InBitmap);
9fa9f06b
KW
1039 SvREFCNT_dec(PL_UpperLatin1);
1040 SvREFCNT_dec(PL_Latin1);
1041 SvREFCNT_dec(PL_NonL1NonFinalFold);
1042 SvREFCNT_dec(PL_HasMultiCharFold);
a0714e2c
SS
1043 PL_utf8_mark = NULL;
1044 PL_utf8_toupper = NULL;
1045 PL_utf8_totitle = NULL;
1046 PL_utf8_tolower = NULL;
1047 PL_utf8_tofold = NULL;
1048 PL_utf8_idstart = NULL;
1049 PL_utf8_idcont = NULL;
2726813d 1050 PL_utf8_foldclosures = NULL;
9fa9f06b 1051 PL_AboveLatin1 = NULL;
e0a1ff7a 1052 PL_InBitmap = NULL;
9fa9f06b
KW
1053 PL_HasMultiCharFold = NULL;
1054 PL_Latin1 = NULL;
1055 PL_NonL1NonFinalFold = NULL;
1056 PL_UpperLatin1 = NULL;
86f72d56 1057 for (i = 0; i < POSIX_CC_COUNT; i++) {
cac6e0ca
KW
1058 SvREFCNT_dec(PL_XPosix_ptrs[i]);
1059 PL_XPosix_ptrs[i] = NULL;
86f72d56 1060 }
5c831c24 1061
971a9dd3 1062 if (!specialWARN(PL_compiling.cop_warnings))
72dc9ed5 1063 PerlMemShared_free(PL_compiling.cop_warnings);
a0714e2c 1064 PL_compiling.cop_warnings = NULL;
20439bc7
Z
1065 cophh_free(CopHINTHASH_get(&PL_compiling));
1066 CopHINTHASH_set(&PL_compiling, cophh_new_empty());
05ec9bb3 1067 CopFILE_free(&PL_compiling);
5c831c24 1068
a0d0e21e 1069 /* Prepare to destruct main symbol table. */
5f05dabc 1070
3280af22 1071 hv = PL_defstash;
ca556bcd
DM
1072 /* break ref loop *:: <=> %:: */
1073 (void)hv_delete(hv, "main::", 6, G_DISCARD);
3280af22 1074 PL_defstash = 0;
a0d0e21e 1075 SvREFCNT_dec(hv);
5c831c24 1076 SvREFCNT_dec(PL_curstname);
a0714e2c 1077 PL_curstname = NULL;
a0d0e21e 1078
5a844595
GS
1079 /* clear queued errors */
1080 SvREFCNT_dec(PL_errors);
a0714e2c 1081 PL_errors = NULL;
5a844595 1082
dd69841b
BB
1083 SvREFCNT_dec(PL_isarev);
1084
a0d0e21e 1085 FREETMPS;
9b387841 1086 if (destruct_level >= 2) {
3280af22 1087 if (PL_scopestack_ix != 0)
9b387841
NC
1088 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1089 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
1090 (long)PL_scopestack_ix);
3280af22 1091 if (PL_savestack_ix != 0)
9b387841
NC
1092 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1093 "Unbalanced saves: %ld more saves than restores\n",
1094 (long)PL_savestack_ix);
3280af22 1095 if (PL_tmps_floor != -1)
9b387841
NC
1096 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
1097 (long)PL_tmps_floor + 1);
a0d0e21e 1098 if (cxstack_ix != -1)
9b387841
NC
1099 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
1100 (long)cxstack_ix + 1);
a0d0e21e 1101 }
8990e307 1102
0547a729
DM
1103#ifdef USE_ITHREADS
1104 SvREFCNT_dec(PL_regex_padav);
1105 PL_regex_padav = NULL;
1106 PL_regex_pad = NULL;
1107#endif
1108
776df701 1109#ifdef PERL_IMPLICIT_CONTEXT
57bb2458
JH
1110 /* the entries in this list are allocated via SV PVX's, so get freed
1111 * in sv_clean_all */
1112 Safefree(PL_my_cxt_list);
776df701 1113#endif
57bb2458 1114
8990e307 1115 /* Now absolutely destruct everything, somehow or other, loops or no. */
5226ed68
JH
1116
1117 /* the 2 is for PL_fdpid and PL_strtab */
d17ea597 1118 while (sv_clean_all() > 2)
5226ed68
JH
1119 ;
1120
23083432
FC
1121#ifdef USE_ITHREADS
1122 Safefree(PL_stashpad); /* must come after sv_clean_all */
1123#endif
1124
d4777f27
GS
1125 AvREAL_off(PL_fdpid); /* no surviving entries */
1126 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
7d49f689 1127 PL_fdpid = NULL;
d33b2eba 1128
6c644e78
GS
1129#ifdef HAVE_INTERP_INTERN
1130 sys_intern_clear();
1131#endif
1132
a38ab475
RZ
1133 /* constant strings */
1134 for (i = 0; i < SV_CONSTS_COUNT; i++) {
1135 SvREFCNT_dec(PL_sv_consts[i]);
1136 PL_sv_consts[i] = NULL;
1137 }
1138
6e72f9df
PP
1139 /* Destruct the global string table. */
1140 {
1141 /* Yell and reset the HeVAL() slots that are still holding refcounts,
1142 * so that sv_free() won't fail on them.
80459961
NC
1143 * Now that the global string table is using a single hunk of memory
1144 * for both HE and HEK, we either need to explicitly unshare it the
1145 * correct way, or actually free things here.
6e72f9df 1146 */
80459961
NC
1147 I32 riter = 0;
1148 const I32 max = HvMAX(PL_strtab);
c4420975 1149 HE * const * const array = HvARRAY(PL_strtab);
80459961
NC
1150 HE *hent = array[0];
1151
6e72f9df 1152 for (;;) {
0453d815 1153 if (hent && ckWARN_d(WARN_INTERNAL)) {
44f8325f 1154 HE * const next = HeNEXT(hent);
9014280d 1155 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
44f8325f 1156 "Unbalanced string table refcount: (%ld) for \"%s\"",
de616631 1157 (long)hent->he_valu.hent_refcount, HeKEY(hent));
80459961
NC
1158 Safefree(hent);
1159 hent = next;
6e72f9df
PP
1160 }
1161 if (!hent) {
1162 if (++riter > max)
1163 break;
1164 hent = array[riter];
1165 }
1166 }
80459961
NC
1167
1168 Safefree(array);
1169 HvARRAY(PL_strtab) = 0;
1170 HvTOTALKEYS(PL_strtab) = 0;
6e72f9df 1171 }
3280af22 1172 SvREFCNT_dec(PL_strtab);
6e72f9df 1173
e652bb2f 1174#ifdef USE_ITHREADS
c21d1a0f 1175 /* free the pointer tables used for cloning */
a0739874 1176 ptr_table_free(PL_ptr_table);
bf9cdc68 1177 PL_ptr_table = (PTR_TBL_t*)NULL;
53186e96 1178#endif
a0739874 1179
d33b2eba
GS
1180 /* free special SVs */
1181
1182 SvREFCNT(&PL_sv_yes) = 0;
1183 sv_clear(&PL_sv_yes);
1184 SvANY(&PL_sv_yes) = NULL;
4c5e2b0d 1185 SvFLAGS(&PL_sv_yes) = 0;
d33b2eba
GS
1186
1187 SvREFCNT(&PL_sv_no) = 0;
1188 sv_clear(&PL_sv_no);
1189 SvANY(&PL_sv_no) = NULL;
4c5e2b0d 1190 SvFLAGS(&PL_sv_no) = 0;
01724ea0 1191
9f375a43
DM
1192 {
1193 int i;
1194 for (i=0; i<=2; i++) {
1195 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
1196 sv_clear(PERL_DEBUG_PAD(i));
1197 SvANY(PERL_DEBUG_PAD(i)) = NULL;
1198 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
1199 }
1200 }
1201
0453d815 1202 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
9014280d 1203 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
6e72f9df 1204
eba0f806
DM
1205#ifdef DEBUG_LEAKING_SCALARS
1206 if (PL_sv_count != 0) {
1207 SV* sva;
1208 SV* sv;
eb578fdb 1209 SV* svend;
eba0f806 1210
ad64d0ec 1211 for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
eba0f806
DM
1212 svend = &sva[SvREFCNT(sva)];
1213 for (sv = sva + 1; sv < svend; ++sv) {
e4787c0c 1214 if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
a548cda8 1215 PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
61b61456 1216 " flags=0x%"UVxf
fd0854ff 1217 " refcnt=%"UVuf pTHX__FORMAT "\n"
cd676548
DM
1218 "\tallocated at %s:%d %s %s (parent 0x%"UVxf");"
1219 "serial %"UVuf"\n",
574b8821
NC
1220 (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
1221 pTHX__VALUE,
fd0854ff
DM
1222 sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1223 sv->sv_debug_line,
1224 sv->sv_debug_inpad ? "for" : "by",
1225 sv->sv_debug_optype ?
1226 PL_op_name[sv->sv_debug_optype]: "(none)",
cd676548 1227 PTR2UV(sv->sv_debug_parent),
cbe56f1d 1228 sv->sv_debug_serial
fd0854ff 1229 );
2aa47728 1230#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
41e4abd8 1231 Perl_dump_sv_child(aTHX_ sv);
2aa47728 1232#endif
eba0f806
DM
1233 }
1234 }
1235 }
1236 }
2aa47728
NC
1237#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
1238 {
1239 int status;
1240 fd_set rset;
1241 /* Wait for up to 4 seconds for child to terminate.
1242 This seems to be the least effort way of timing out on reaping
1243 its exit status. */
1244 struct timeval waitfor = {4, 0};
41e4abd8 1245 int sock = PL_dumper_fd;
2aa47728
NC
1246
1247 shutdown(sock, 1);
1248 FD_ZERO(&rset);
1249 FD_SET(sock, &rset);
1250 select(sock + 1, &rset, NULL, NULL, &waitfor);
1251 waitpid(child, &status, WNOHANG);
1252 close(sock);
1253 }
1254#endif
eba0f806 1255#endif
77abb4c6
NC
1256#ifdef DEBUG_LEAKING_SCALARS_ABORT
1257 if (PL_sv_count)
1258 abort();
1259#endif
bf9cdc68 1260 PL_sv_count = 0;
eba0f806 1261
56a2bab7 1262#if defined(PERLIO_LAYERS)
3a1ee7e8
NIS
1263 /* No more IO - including error messages ! */
1264 PerlIO_cleanup(aTHX);
1265#endif
1266
9f4bd222 1267 /* sv_undef needs to stay immortal until after PerlIO_cleanup
a0714e2c 1268 as currently layers use it rather than NULL as a marker
9f4bd222
NIS
1269 for no arg - and will try and SvREFCNT_dec it.
1270 */
1271 SvREFCNT(&PL_sv_undef) = 0;
1272 SvREADONLY_off(&PL_sv_undef);
1273
3280af22 1274 Safefree(PL_origfilename);
bd61b366 1275 PL_origfilename = NULL;
43c5f42d 1276 Safefree(PL_reg_curpm);
dd28f7bb 1277 free_tied_hv_pool();
3280af22 1278 Safefree(PL_op_mask);
cf36064f 1279 Safefree(PL_psig_name);
bf9cdc68 1280 PL_psig_name = (SV**)NULL;
d525a7b2 1281 PL_psig_ptr = (SV**)NULL;
31c91b43
LR
1282 {
1283 /* We need to NULL PL_psig_pend first, so that
1284 signal handlers know not to use it */
1285 int *psig_save = PL_psig_pend;
1286 PL_psig_pend = (int*)NULL;
1287 Safefree(psig_save);
1288 }
6e72f9df 1289 nuke_stacks();
284167a5
SM
1290 TAINTING_set(FALSE);
1291 TAINT_WARN_set(FALSE);
3280af22 1292 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
ac27b0f5 1293
a0d0e21e 1294 DEBUG_P(debprofdump());
d33b2eba 1295
b173165c
FC
1296 PL_debug = 0;
1297
e5dd39fc 1298#ifdef USE_REENTRANT_API
10bc17b6 1299 Perl_reentrant_free(aTHX);
e5dd39fc
AB
1300#endif
1301
612f20c3
GS
1302 sv_free_arenas();
1303
5d9a96ca
DM
1304 while (PL_regmatch_slab) {
1305 regmatch_slab *s = PL_regmatch_slab;
1306 PL_regmatch_slab = PL_regmatch_slab->next;
1307 Safefree(s);
1308 }
1309
fc36a67e
PP
1310 /* As the absolutely last thing, free the non-arena SV for mess() */
1311
3280af22 1312 if (PL_mess_sv) {
f350b448
NC
1313 /* we know that type == SVt_PVMG */
1314
9c63abab 1315 /* it could have accumulated taint magic */
f350b448
NC
1316 MAGIC* mg;
1317 MAGIC* moremagic;
1318 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
1319 moremagic = mg->mg_moremagic;
1320 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
1321 && mg->mg_len >= 0)
1322 Safefree(mg->mg_ptr);
1323 Safefree(mg);
9c63abab 1324 }
f350b448 1325
fc36a67e 1326 /* we know that type >= SVt_PV */
8bd4d4c5 1327 SvPV_free(PL_mess_sv);
3280af22
NIS
1328 Safefree(SvANY(PL_mess_sv));
1329 Safefree(PL_mess_sv);
a0714e2c 1330 PL_mess_sv = NULL;
fc36a67e 1331 }
37038d91 1332 return STATUS_EXIT;
79072805
LW
1333}
1334
954c1994
GS
1335/*
1336=for apidoc perl_free
1337
1338Releases a Perl interpreter. See L<perlembed>.
1339
1340=cut
1341*/
1342
79072805 1343void
0cb96387 1344perl_free(pTHXx)
79072805 1345{
5174512c
NC
1346 dVAR;
1347
7918f24d
NC
1348 PERL_ARGS_ASSERT_PERL_FREE;
1349
c301d606
DM
1350 if (PL_veto_cleanup)
1351 return;
1352
7cb608b5 1353#ifdef PERL_TRACK_MEMPOOL
55ef9aae
MHM
1354 {
1355 /*
1356 * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero
1357 * value as we're probably hunting memory leaks then
1358 */
36e77d41 1359 if (PL_perl_destruct_level == 0) {
4fd0a9b8 1360 const U32 old_debug = PL_debug;
55ef9aae
MHM
1361 /* Emulate the PerlHost behaviour of free()ing all memory allocated in this
1362 thread at thread exit. */
4fd0a9b8
NC
1363 if (DEBUG_m_TEST) {
1364 PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
1365 "free this thread's memory\n");
1366 PL_debug &= ~ DEBUG_m_FLAG;
1367 }
6edcbed6
DD
1368 while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)){
1369 char * next = (char *)(aTHXx->Imemory_debug_header.next);
1370 Malloc_t ptr = PERL_MEMORY_DEBUG_HEADER_SIZE + next;
1371 safesysfree(ptr);
1372 }
4fd0a9b8 1373 PL_debug = old_debug;
55ef9aae
MHM
1374 }
1375 }
7cb608b5
NC
1376#endif
1377
acfe0abc 1378#if defined(WIN32) || defined(NETWARE)
ce3e5b80 1379# if defined(PERL_IMPLICIT_SYS)
b36c9a52 1380 {
acfe0abc 1381# ifdef NETWARE
7af12a34 1382 void *host = nw_internal_host;
7af12a34 1383 PerlMem_free(aTHXx);
7af12a34 1384 nw_delete_internal_host(host);
acfe0abc 1385# else
bdb50480
NC
1386 void *host = w32_internal_host;
1387 PerlMem_free(aTHXx);
7af12a34 1388 win32_delete_internal_host(host);
acfe0abc 1389# endif
7af12a34 1390 }
1c0ca838
GS
1391# else
1392 PerlMem_free(aTHXx);
1393# endif
acfe0abc
GS
1394#else
1395 PerlMem_free(aTHXx);
76e3520e 1396#endif
79072805
LW
1397}
1398
b7f7fff6 1399#if defined(USE_ITHREADS)
aebd1ac7
GA
1400/* provide destructors to clean up the thread key when libperl is unloaded */
1401#ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */
1402
826955bd 1403#if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__)
aebd1ac7 1404#pragma fini "perl_fini"
666ad1ec
GA
1405#elif defined(__sun) && !defined(__GNUC__)
1406#pragma fini (perl_fini)
aebd1ac7
GA
1407#endif
1408
0dbb1585
AL
1409static void
1410#if defined(__GNUC__)
1411__attribute__((destructor))
aebd1ac7 1412#endif
de009b76 1413perl_fini(void)
aebd1ac7 1414{
27da23d5 1415 dVAR;
5c64bffd
NC
1416 if (
1417#ifdef PERL_GLOBAL_STRUCT_PRIVATE
1418 my_vars &&
1419#endif
1420 PL_curinterp && !PL_veto_cleanup)
aebd1ac7
GA
1421 FREE_THREAD_KEY;
1422}
1423
1424#endif /* WIN32 */
1425#endif /* THREADS */
1426
4b556e6c 1427void
864dbfa3 1428Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
4b556e6c 1429{
3280af22
NIS
1430 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
1431 PL_exitlist[PL_exitlistlen].fn = fn;
1432 PL_exitlist[PL_exitlistlen].ptr = ptr;
1433 ++PL_exitlistlen;
4b556e6c
JD
1434}
1435
954c1994
GS
1436/*
1437=for apidoc perl_parse
1438
1439Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
1440
1441=cut
1442*/
1443
03d9f026
FC
1444#define SET_CURSTASH(newstash) \
1445 if (PL_curstash != newstash) { \
1446 SvREFCNT_dec(PL_curstash); \
1447 PL_curstash = (HV *)SvREFCNT_inc(newstash); \
1448 }
1449
79072805 1450int
0cb96387 1451perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
8d063cd8 1452{
27da23d5 1453 dVAR;
6224f72b 1454 I32 oldscope;
6224f72b 1455 int ret;
db36c5a1 1456 dJMPENV;
8d063cd8 1457
7918f24d
NC
1458 PERL_ARGS_ASSERT_PERL_PARSE;
1459#ifndef MULTIPLICITY
ed6c66dd 1460 PERL_UNUSED_ARG(my_perl);
7918f24d 1461#endif
7dc86639 1462#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) || defined(USE_HASH_SEED_DEBUG)
b0891165 1463 {
7dc86639
YO
1464 const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
1465
96e440d2 1466 if (s && (grok_atou(s, NULL) == 1)) {
7dc86639
YO
1467 unsigned char *seed= PERL_HASH_SEED;
1468 unsigned char *seed_end= PERL_HASH_SEED + PERL_HASH_SEED_BYTES;
1469 PerlIO_printf(Perl_debug_log, "HASH_FUNCTION = %s HASH_SEED = 0x", PERL_HASH_FUNC);
1470 while (seed < seed_end) {
1471 PerlIO_printf(Perl_debug_log, "%02x", *seed++);
1472 }
6a5b4183
YO
1473#ifdef PERL_HASH_RANDOMIZE_KEYS
1474 PerlIO_printf(Perl_debug_log, " PERTURB_KEYS = %d (%s)",
1475 PL_HASH_RAND_BITS_ENABLED,
1476 PL_HASH_RAND_BITS_ENABLED == 0 ? "NO" : PL_HASH_RAND_BITS_ENABLED == 1 ? "RANDOM" : "DETERMINISTIC");
1477#endif
7dc86639
YO
1478 PerlIO_printf(Perl_debug_log, "\n");
1479 }
b0891165
JH
1480 }
1481#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3280af22 1482 PL_origargc = argc;
e2975953 1483 PL_origargv = argv;
a0d0e21e 1484
a2722ac9
GA
1485 if (PL_origalen != 0) {
1486 PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */
1487 }
1488 else {
3cb9023d
JH
1489 /* Set PL_origalen be the sum of the contiguous argv[]
1490 * elements plus the size of the env in case that it is
e9137a8e 1491 * contiguous with the argv[]. This is used in mg.c:Perl_magic_set()
3cb9023d
JH
1492 * as the maximum modifiable length of $0. In the worst case
1493 * the area we are able to modify is limited to the size of
43c32782 1494 * the original argv[0]. (See below for 'contiguous', though.)
3cb9023d 1495 * --jhi */
e1ec3a88 1496 const char *s = NULL;
54bfe034 1497 int i;
b7249aaf 1498 const UV mask = ~(UV)(PTRSIZE-1);
43c32782 1499 /* Do the mask check only if the args seem like aligned. */
1b6737cc 1500 const UV aligned =
43c32782
JH
1501 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
1502
1503 /* See if all the arguments are contiguous in memory. Note
1504 * that 'contiguous' is a loose term because some platforms
1505 * align the argv[] and the envp[]. If the arguments look
1506 * like non-aligned, assume that they are 'strictly' or
1507 * 'traditionally' contiguous. If the arguments look like
1508 * aligned, we just check that they are within aligned
1509 * PTRSIZE bytes. As long as no system has something bizarre
1510 * like the argv[] interleaved with some other data, we are
1511 * fine. (Did I just evoke Murphy's Law?) --jhi */
c8941eeb
JH
1512 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) {
1513 while (*s) s++;
1514 for (i = 1; i < PL_origargc; i++) {
1515 if ((PL_origargv[i] == s + 1
43c32782 1516#ifdef OS2
c8941eeb 1517 || PL_origargv[i] == s + 2
43c32782 1518#endif
c8941eeb
JH
1519 )
1520 ||
1521 (aligned &&
1522 (PL_origargv[i] > s &&
1523 PL_origargv[i] <=
1524 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1525 )
1526 {
1527 s = PL_origargv[i];
1528 while (*s) s++;
1529 }
1530 else
1531 break;
54bfe034 1532 }
54bfe034 1533 }
a4a109c2
JD
1534
1535#ifndef PERL_USE_SAFE_PUTENV
3cb9023d 1536 /* Can we grab env area too to be used as the area for $0? */
a4a109c2 1537 if (s && PL_origenviron && !PL_use_safe_putenv) {
9d419b5f 1538 if ((PL_origenviron[0] == s + 1)
43c32782
JH
1539 ||
1540 (aligned &&
1541 (PL_origenviron[0] > s &&
1542 PL_origenviron[0] <=
1543 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1544 )
1545 {
9d419b5f 1546#ifndef OS2 /* ENVIRON is read by the kernel too. */
43c32782
JH
1547 s = PL_origenviron[0];
1548 while (*s) s++;
1549#endif
bd61b366 1550 my_setenv("NoNe SuCh", NULL);
43c32782
JH
1551 /* Force copy of environment. */
1552 for (i = 1; PL_origenviron[i]; i++) {
1553 if (PL_origenviron[i] == s + 1
1554 ||
1555 (aligned &&
1556 (PL_origenviron[i] > s &&
1557 PL_origenviron[i] <=
1558 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1559 )
1560 {
1561 s = PL_origenviron[i];
1562 while (*s) s++;
1563 }
1564 else
1565 break;
54bfe034 1566 }
43c32782 1567 }
54bfe034 1568 }
a4a109c2
JD
1569#endif /* !defined(PERL_USE_SAFE_PUTENV) */
1570
2d2af554 1571 PL_origalen = s ? s - PL_origargv[0] + 1 : 0;
54bfe034
JH
1572 }
1573
3280af22 1574 if (PL_do_undump) {
a0d0e21e
LW
1575
1576 /* Come here if running an undumped a.out. */
1577
3280af22
NIS
1578 PL_origfilename = savepv(argv[0]);
1579 PL_do_undump = FALSE;
a0d0e21e 1580 cxstack_ix = -1; /* start label stack again */
748a9306 1581 init_ids();
284167a5 1582 assert (!TAINT_get);
b7975bdd 1583 TAINT;
e2051532 1584 set_caret_X();
b7975bdd 1585 TAINT_NOT;
a0d0e21e
LW
1586 init_postdump_symbols(argc,argv,env);
1587 return 0;
1588 }
1589
3280af22 1590 if (PL_main_root) {
3280af22 1591 op_free(PL_main_root);
5f66b61c 1592 PL_main_root = NULL;
ff0cee69 1593 }
5f66b61c 1594 PL_main_start = NULL;
3280af22 1595 SvREFCNT_dec(PL_main_cv);
601f1833 1596 PL_main_cv = NULL;
79072805 1597
3280af22
NIS
1598 time(&PL_basetime);
1599 oldscope = PL_scopestack_ix;
599cee73 1600 PL_dowarn = G_WARN_OFF;
f86702cc 1601
14dd3ad8 1602 JMPENV_PUSH(ret);
6224f72b 1603 switch (ret) {
312caa8e 1604 case 0:
14dd3ad8 1605 parse_body(env,xsinit);
9ebf26ad 1606 if (PL_unitcheckav) {
3c10abe3 1607 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1608 }
1609 if (PL_checkav) {
ca7b837b 1610 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1611 call_list(oldscope, PL_checkav);
9ebf26ad 1612 }
14dd3ad8
GS
1613 ret = 0;
1614 break;
6224f72b
GS
1615 case 1:
1616 STATUS_ALL_FAILURE;
924ba076 1617 /* FALLTHROUGH */
6224f72b
GS
1618 case 2:
1619 /* my_exit() was called */
3280af22 1620 while (PL_scopestack_ix > oldscope)
6224f72b
GS
1621 LEAVE;
1622 FREETMPS;
03d9f026 1623 SET_CURSTASH(PL_defstash);
9ebf26ad 1624 if (PL_unitcheckav) {
3c10abe3 1625 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1626 }
1627 if (PL_checkav) {
ca7b837b 1628 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1629 call_list(oldscope, PL_checkav);
9ebf26ad 1630 }
37038d91 1631 ret = STATUS_EXIT;
14dd3ad8 1632 break;
6224f72b 1633 case 3:
bf49b057 1634 PerlIO_printf(Perl_error_log, "panic: top_env\n");
14dd3ad8
GS
1635 ret = 1;
1636 break;
6224f72b 1637 }
14dd3ad8
GS
1638 JMPENV_POP;
1639 return ret;
1640}
1641
4a5df386
NC
1642/* This needs to stay in perl.c, as perl.c is compiled with different flags for
1643 miniperl, and we need to see those flags reflected in the values here. */
1644
1645/* What this returns is subject to change. Use the public interface in Config.
1646 */
1647static void
1648S_Internals_V(pTHX_ CV *cv)
1649{
1650 dXSARGS;
1651#ifdef LOCAL_PATCH_COUNT
1652 const int local_patch_count = LOCAL_PATCH_COUNT;
1653#else
1654 const int local_patch_count = 0;
1655#endif
2dc296d2 1656 const int entries = 3 + local_patch_count;
4a5df386 1657 int i;
fe1c5936 1658 static const char non_bincompat_options[] =
4a5df386
NC
1659# ifdef DEBUGGING
1660 " DEBUGGING"
1661# endif
1662# ifdef NO_MATHOMS
0d311fbe 1663 " NO_MATHOMS"
4a5df386 1664# endif
59b86f4b
DM
1665# ifdef NO_HASH_SEED
1666 " NO_HASH_SEED"
1667# endif
3b0e4ee2
MB
1668# ifdef NO_TAINT_SUPPORT
1669 " NO_TAINT_SUPPORT"
1670# endif
cb26ef7a
MB
1671# ifdef PERL_BOOL_AS_CHAR
1672 " PERL_BOOL_AS_CHAR"
1673# endif
4a5df386
NC
1674# ifdef PERL_DISABLE_PMC
1675 " PERL_DISABLE_PMC"
1676# endif
1677# ifdef PERL_DONT_CREATE_GVSV
1678 " PERL_DONT_CREATE_GVSV"
1679# endif
9a044a43
NC
1680# ifdef PERL_EXTERNAL_GLOB
1681 " PERL_EXTERNAL_GLOB"
1682# endif
59b86f4b
DM
1683# ifdef PERL_HASH_FUNC_SIPHASH
1684 " PERL_HASH_FUNC_SIPHASH"
1685# endif
1686# ifdef PERL_HASH_FUNC_SDBM
1687 " PERL_HASH_FUNC_SDBM"
1688# endif
1689# ifdef PERL_HASH_FUNC_DJB2
1690 " PERL_HASH_FUNC_DJB2"
1691# endif
1692# ifdef PERL_HASH_FUNC_SUPERFAST
1693 " PERL_HASH_FUNC_SUPERFAST"
1694# endif
1695# ifdef PERL_HASH_FUNC_MURMUR3
1696 " PERL_HASH_FUNC_MURMUR3"
1697# endif
1698# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME
1699 " PERL_HASH_FUNC_ONE_AT_A_TIME"
1700# endif
1701# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
1702 " PERL_HASH_FUNC_ONE_AT_A_TIME_HARD"
1703# endif
1704# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_OLD
1705 " PERL_HASH_FUNC_ONE_AT_A_TIME_OLD"
1706# endif
4a5df386
NC
1707# ifdef PERL_IS_MINIPERL
1708 " PERL_IS_MINIPERL"
1709# endif
1710# ifdef PERL_MALLOC_WRAP
1711 " PERL_MALLOC_WRAP"
1712# endif
1713# ifdef PERL_MEM_LOG
1714 " PERL_MEM_LOG"
1715# endif
1716# ifdef PERL_MEM_LOG_NOIMPL
1717 " PERL_MEM_LOG_NOIMPL"
1718# endif
2542212d
DM
1719# ifdef PERL_NEW_COPY_ON_WRITE
1720 " PERL_NEW_COPY_ON_WRITE"
1721# endif
59b86f4b
DM
1722# ifdef PERL_PERTURB_KEYS_DETERMINISTIC
1723 " PERL_PERTURB_KEYS_DETERMINISTIC"
1724# endif
1725# ifdef PERL_PERTURB_KEYS_DISABLED
1726 " PERL_PERTURB_KEYS_DISABLED"
1727# endif
1728# ifdef PERL_PERTURB_KEYS_RANDOM
1729 " PERL_PERTURB_KEYS_RANDOM"
1730# endif
c3cf41ec
NC
1731# ifdef PERL_PRESERVE_IVUV
1732 " PERL_PRESERVE_IVUV"
1733# endif
c051e30b
NC
1734# ifdef PERL_RELOCATABLE_INCPUSH
1735 " PERL_RELOCATABLE_INCPUSH"
1736# endif
4a5df386
NC
1737# ifdef PERL_USE_DEVEL
1738 " PERL_USE_DEVEL"
1739# endif
1740# ifdef PERL_USE_SAFE_PUTENV
1741 " PERL_USE_SAFE_PUTENV"
1742# endif
a3749cf3
NC
1743# ifdef UNLINK_ALL_VERSIONS
1744 " UNLINK_ALL_VERSIONS"
1745# endif
de618ee4
NC
1746# ifdef USE_ATTRIBUTES_FOR_PERLIO
1747 " USE_ATTRIBUTES_FOR_PERLIO"
1748# endif
4a5df386
NC
1749# ifdef USE_FAST_STDIO
1750 " USE_FAST_STDIO"
1751# endif
59b86f4b
DM
1752# ifdef USE_HASH_SEED_EXPLICIT
1753 " USE_HASH_SEED_EXPLICIT"
1754# endif
98548bdf
NC
1755# ifdef USE_LOCALE
1756 " USE_LOCALE"
1757# endif
98548bdf
NC
1758# ifdef USE_LOCALE_CTYPE
1759 " USE_LOCALE_CTYPE"
1760# endif
5a8d8935
NC
1761# ifdef USE_PERL_ATOF
1762 " USE_PERL_ATOF"
1763# endif
0d311fbe
NC
1764# ifdef USE_SITECUSTOMIZE
1765 " USE_SITECUSTOMIZE"
1766# endif
4a5df386
NC
1767 ;
1768 PERL_UNUSED_ARG(cv);
1769 PERL_UNUSED_ARG(items);
1770
1771 EXTEND(SP, entries);
1772
1773 PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0)));
1774 PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
1775 sizeof(non_bincompat_options) - 1, SVs_TEMP));
1776
1777#ifdef __DATE__
1778# ifdef __TIME__
1779 PUSHs(Perl_newSVpvn_flags(aTHX_
1780 STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
1781 SVs_TEMP));
1782# else
1783 PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__),
1784 SVs_TEMP));
1785# endif
1786#else
1787 PUSHs(&PL_sv_undef);
1788#endif
1789
4a5df386
NC
1790 for (i = 1; i <= local_patch_count; i++) {
1791 /* This will be an undef, if PL_localpatches[i] is NULL. */
1792 PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0)));
1793 }
1794
1795 XSRETURN(entries);
1796}
1797
be71fc8f
NC
1798#define INCPUSH_UNSHIFT 0x01
1799#define INCPUSH_ADD_OLD_VERS 0x02
1800#define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04
1801#define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08
1802#define INCPUSH_NOT_BASEDIR 0x10
1803#define INCPUSH_CAN_RELOCATE 0x20
1e3208d8
NC
1804#define INCPUSH_ADD_SUB_DIRS \
1805 (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS)
e28f3139 1806
312caa8e 1807STATIC void *
14dd3ad8 1808S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
312caa8e 1809{
27da23d5 1810 dVAR;
2f9285f8 1811 PerlIO *rsfp;
312caa8e 1812 int argc = PL_origargc;
8f42b153 1813 char **argv = PL_origargv;
e1ec3a88 1814 const char *scriptname = NULL;
312caa8e 1815 VOL bool dosearch = FALSE;
eb578fdb 1816 char c;
737c24fc 1817 bool doextract = FALSE;
bd61b366 1818 const char *cddir = NULL;
ab019eaa 1819#ifdef USE_SITECUSTOMIZE
20ef40cf 1820 bool minus_f = FALSE;
ab019eaa 1821#endif
95670bde 1822 SV *linestr_sv = NULL;
5486870f 1823 bool add_read_e_script = FALSE;
87606032 1824 U32 lex_start_flags = 0;
009d90df 1825
ca7b837b 1826 PERL_SET_PHASE(PERL_PHASE_START);
9ebf26ad 1827
6224f72b 1828 init_main_stash();
54310121 1829
c7030b81
NC
1830 {
1831 const char *s;
6224f72b
GS
1832 for (argc--,argv++; argc > 0; argc--,argv++) {
1833 if (argv[0][0] != '-' || !argv[0][1])
1834 break;
6224f72b
GS
1835 s = argv[0]+1;
1836 reswitch:
47f56822 1837 switch ((c = *s)) {
729a02f2 1838 case 'C':
1d5472a9
GS
1839#ifndef PERL_STRICT_CR
1840 case '\r':
1841#endif
6224f72b
GS
1842 case ' ':
1843 case '0':
1844 case 'F':
1845 case 'a':
1846 case 'c':
1847 case 'd':
1848 case 'D':
1849 case 'h':
1850 case 'i':
1851 case 'l':
1852 case 'M':
1853 case 'm':
1854 case 'n':
1855 case 'p':
1856 case 's':
1857 case 'u':
1858 case 'U':
1859 case 'v':
599cee73
PM
1860 case 'W':
1861 case 'X':
6224f72b 1862 case 'w':
97bd5664 1863 if ((s = moreswitches(s)))
6224f72b
GS
1864 goto reswitch;
1865 break;
33b78306 1866
1dbad523 1867 case 't':
dc6d7f5c 1868#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 1869 /* silently ignore */
dc6d7f5c 1870#elif defined(NO_TAINT_SUPPORT)
3231f579 1871 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
1872 "Cowardly refusing to run with -t or -T flags");
1873#else
22f7c9c9 1874 CHECK_MALLOC_TOO_LATE_FOR('t');
284167a5
SM
1875 if( !TAINTING_get ) {
1876 TAINT_WARN_set(TRUE);
1877 TAINTING_set(TRUE);
317ea90d 1878 }
284167a5 1879#endif
317ea90d
MS
1880 s++;
1881 goto reswitch;
6224f72b 1882 case 'T':
dc6d7f5c 1883#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 1884 /* silently ignore */
dc6d7f5c 1885#elif defined(NO_TAINT_SUPPORT)
3231f579 1886 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
1887 "Cowardly refusing to run with -t or -T flags");
1888#else
22f7c9c9 1889 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
SM
1890 TAINTING_set(TRUE);
1891 TAINT_WARN_set(FALSE);
1892#endif
6224f72b
GS
1893 s++;
1894 goto reswitch;
f86702cc 1895
bc9b29db
RH
1896 case 'E':
1897 PL_minus_E = TRUE;
924ba076 1898 /* FALLTHROUGH */
6224f72b 1899 case 'e':
f20b2998 1900 forbid_setid('e', FALSE);
3280af22 1901 if (!PL_e_script) {
396482e1 1902 PL_e_script = newSVpvs("");
5486870f 1903 add_read_e_script = TRUE;
6224f72b
GS
1904 }
1905 if (*++s)
3280af22 1906 sv_catpv(PL_e_script, s);
6224f72b 1907 else if (argv[1]) {
3280af22 1908 sv_catpv(PL_e_script, argv[1]);
6224f72b
GS
1909 argc--,argv++;
1910 }
1911 else
47f56822 1912 Perl_croak(aTHX_ "No code specified for -%c", c);
396482e1 1913 sv_catpvs(PL_e_script, "\n");
6224f72b 1914 break;
afe37c7d 1915
20ef40cf 1916 case 'f':
f5542d3a 1917#ifdef USE_SITECUSTOMIZE
20ef40cf 1918 minus_f = TRUE;
f5542d3a 1919#endif
20ef40cf
GA
1920 s++;
1921 goto reswitch;
1922
6224f72b 1923 case 'I': /* -I handled both here and in moreswitches() */
f20b2998 1924 forbid_setid('I', FALSE);
bd61b366 1925 if (!*++s && (s=argv[1]) != NULL) {
6224f72b
GS
1926 argc--,argv++;
1927 }
6224f72b 1928 if (s && *s) {
0df16ed7 1929 STRLEN len = strlen(s);
55b4bc1c 1930 incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
0df16ed7
GS
1931 }
1932 else
a67e862a 1933 Perl_croak(aTHX_ "No directory specified for -I");
6224f72b 1934 break;
6224f72b 1935 case 'S':
f20b2998 1936 forbid_setid('S', FALSE);
6224f72b
GS
1937 dosearch = TRUE;
1938 s++;
1939 goto reswitch;
1940 case 'V':
7edfd0ef
NC
1941 {
1942 SV *opts_prog;
1943
7edfd0ef 1944 if (*++s != ':') {
37ca4a5b 1945 opts_prog = newSVpvs("use Config; Config::_V()");
7edfd0ef
NC
1946 }
1947 else {
1948 ++s;
1949 opts_prog = Perl_newSVpvf(aTHX_
37ca4a5b 1950 "use Config; Config::config_vars(qw%c%s%c)",
7edfd0ef
NC
1951 0, s, 0);
1952 s += strlen(s);
1953 }
37ca4a5b 1954 Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog);
7edfd0ef
NC
1955 /* don't look for script or read stdin */
1956 scriptname = BIT_BUCKET;
1957 goto reswitch;
6224f72b 1958 }
6224f72b 1959 case 'x':
737c24fc 1960 doextract = TRUE;
6224f72b 1961 s++;
304334da 1962 if (*s)
f4c556ac 1963 cddir = s;
6224f72b
GS
1964 break;
1965 case 0:
1966 break;
1967 case '-':
1968 if (!*++s || isSPACE(*s)) {
1969 argc--,argv++;
1970 goto switch_end;
1971 }
ee8bc8b7
NC
1972 /* catch use of gnu style long options.
1973 Both of these exit immediately. */
1974 if (strEQ(s, "version"))
1975 minus_v();
1976 if (strEQ(s, "help"))
1977 usage();
6224f72b 1978 s--;
924ba076 1979 /* FALLTHROUGH */
6224f72b 1980 default:
cea2e8a9 1981 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
8d063cd8
LW
1982 }
1983 }
c7030b81
NC
1984 }
1985
6224f72b 1986 switch_end:
54310121 1987
c7030b81
NC
1988 {
1989 char *s;
1990
f675dbe5
CB
1991 if (
1992#ifndef SECURE_INTERNAL_GETENV
284167a5 1993 !TAINTING_get &&
f675dbe5 1994#endif
cf756827 1995 (s = PerlEnv_getenv("PERL5OPT")))
0df16ed7 1996 {
74288ac8
GS
1997 while (isSPACE(*s))
1998 s++;
317ea90d 1999 if (*s == '-' && *(s+1) == 'T') {
dc6d7f5c 2000#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 2001 /* silently ignore */
dc6d7f5c 2002#elif defined(NO_TAINT_SUPPORT)
3231f579 2003 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
2004 "Cowardly refusing to run with -t or -T flags");
2005#else
22f7c9c9 2006 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
SM
2007 TAINTING_set(TRUE);
2008 TAINT_WARN_set(FALSE);
2009#endif
317ea90d 2010 }
74288ac8 2011 else {
bd61b366 2012 char *popt_copy = NULL;
74288ac8 2013 while (s && *s) {
54913509 2014 const char *d;
74288ac8
GS
2015 while (isSPACE(*s))
2016 s++;
2017 if (*s == '-') {
2018 s++;
2019 if (isSPACE(*s))
2020 continue;
2021 }
4ea8f8fb 2022 d = s;
74288ac8
GS
2023 if (!*s)
2024 break;
2b622f1a 2025 if (!strchr("CDIMUdmtwW", *s))
cea2e8a9 2026 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
4ea8f8fb
MS
2027 while (++s && *s) {
2028 if (isSPACE(*s)) {
cf756827 2029 if (!popt_copy) {
bfa6c418
NC
2030 popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
2031 s = popt_copy + (s - d);
2032 d = popt_copy;
cf756827 2033 }
4ea8f8fb
MS
2034 *s++ = '\0';
2035 break;
2036 }
2037 }
1c4db469 2038 if (*d == 't') {
dc6d7f5c 2039#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 2040 /* silently ignore */
dc6d7f5c 2041#elif defined(NO_TAINT_SUPPORT)
3231f579 2042 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
2043 "Cowardly refusing to run with -t or -T flags");
2044#else
2045 if( !TAINTING_get) {
2046 TAINT_WARN_set(TRUE);
2047 TAINTING_set(TRUE);
317ea90d 2048 }
284167a5 2049#endif
1c4db469 2050 } else {
97bd5664 2051 moreswitches(d);
1c4db469 2052 }
6224f72b 2053 }
6224f72b
GS
2054 }
2055 }
c7030b81 2056 }
a0d0e21e 2057
c29067d7
CH
2058 /* Set $^X early so that it can be used for relocatable paths in @INC */
2059 /* and for SITELIB_EXP in USE_SITECUSTOMIZE */
284167a5 2060 assert (!TAINT_get);
c29067d7 2061 TAINT;
e2051532 2062 set_caret_X();
c29067d7
CH
2063 TAINT_NOT;
2064
43c0c913 2065#if defined(USE_SITECUSTOMIZE)
20ef40cf 2066 if (!minus_f) {
43c0c913 2067 /* The games with local $! are to avoid setting errno if there is no
fc81b718
NC
2068 sitecustomize script. "q%c...%c", 0, ..., 0 becomes "q\0...\0",
2069 ie a q() operator with a NUL byte as a the delimiter. This avoids
2070 problems with pathnames containing (say) ' */
43c0c913
NC
2071# ifdef PERL_IS_MINIPERL
2072 AV *const inc = GvAV(PL_incgv);
2073 SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL;
2074
2075 if (inc0) {
15870c5c
NC
2076 /* if lib/buildcustomize.pl exists, it should not fail. If it does,
2077 it should be reported immediately as a build failure. */
43c0c913
NC
2078 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2079 Perl_newSVpvf(aTHX_
5de87db5 2080 "BEGIN { my $f = q%c%s%"SVf"/buildcustomize.pl%c; "
af26e4f2
FC
2081 "do {local $!; -f $f }"
2082 " and do $f || die $@ || qq '$f: $!' }",
5de87db5 2083 0, (TAINTING_get ? "./" : ""), SVfARG(*inc0), 0));
43c0c913
NC
2084 }
2085# else
2086 /* SITELIB_EXP is a function call on Win32. */
c29067d7 2087 const char *const raw_sitelib = SITELIB_EXP;
bac5c4fc
JD
2088 if (raw_sitelib) {
2089 /* process .../.. if PERL_RELOCATABLE_INC is defined */
2090 SV *sitelib_sv = mayberelocate(raw_sitelib, strlen(raw_sitelib),
2091 INCPUSH_CAN_RELOCATE);
2092 const char *const sitelib = SvPVX(sitelib_sv);
2093 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2094 Perl_newSVpvf(aTHX_
2095 "BEGIN { do {local $!; -f q%c%s/sitecustomize.pl%c} && do q%c%s/sitecustomize.pl%c }",
c1f6cd39
BF
2096 0, SVfARG(sitelib), 0,
2097 0, SVfARG(sitelib), 0));
bac5c4fc
JD
2098 assert (SvREFCNT(sitelib_sv) == 1);
2099 SvREFCNT_dec(sitelib_sv);
2100 }
43c0c913 2101# endif
20ef40cf
GA
2102 }
2103#endif
2104
6224f72b
GS
2105 if (!scriptname)
2106 scriptname = argv[0];
3280af22 2107 if (PL_e_script) {
6224f72b
GS
2108 argc++,argv--;
2109 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
2110 }
bd61b366 2111 else if (scriptname == NULL) {
6224f72b
GS
2112#ifdef MSDOS
2113 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
97bd5664 2114 moreswitches("h");
6224f72b
GS
2115#endif
2116 scriptname = "-";
2117 }
2118
284167a5 2119 assert (!TAINT_get);
2cace6ac 2120 init_perllib();
6224f72b 2121
a52eba0e 2122 {
f20b2998 2123 bool suidscript = FALSE;
829372d3 2124
8d113837 2125 rsfp = open_script(scriptname, dosearch, &suidscript);
c0b3891a
NC
2126 if (!rsfp) {
2127 rsfp = PerlIO_stdin();
87606032 2128 lex_start_flags = LEX_DONT_CLOSE_RSFP;
c0b3891a 2129 }
6224f72b 2130
b24bc095 2131 validate_suid(rsfp);
6224f72b 2132
64ca3a65 2133#ifndef PERL_MICRO
a52eba0e
NC
2134# if defined(SIGCHLD) || defined(SIGCLD)
2135 {
2136# ifndef SIGCHLD
2137# define SIGCHLD SIGCLD
2138# endif
2139 Sighandler_t sigstate = rsignal_state(SIGCHLD);
2140 if (sigstate == (Sighandler_t) SIG_IGN) {
a2a5de95
NC
2141 Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
2142 "Can't ignore signal CHLD, forcing to default");
a52eba0e
NC
2143 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
2144 }
0b5b802d 2145 }
a52eba0e 2146# endif
64ca3a65 2147#endif
0b5b802d 2148
737c24fc 2149 if (doextract) {
faef540c 2150
f20b2998 2151 /* This will croak if suidscript is true, as -x cannot be used with
faef540c
NC
2152 setuid scripts. */
2153 forbid_setid('x', suidscript);
f20b2998 2154 /* Hence you can't get here if suidscript is true */
faef540c 2155
95670bde
NC
2156 linestr_sv = newSV_type(SVt_PV);
2157 lex_start_flags |= LEX_START_COPIED;
2f9285f8 2158 find_beginning(linestr_sv, rsfp);
a52eba0e
NC
2159 if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
2160 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
2161 }
f4c556ac 2162 }
6224f72b 2163
ea726b52 2164 PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
3280af22
NIS
2165 CvUNIQUE_on(PL_compcv);
2166
eacbb379 2167 CvPADLIST_set(PL_compcv, pad_new(0));
6224f72b 2168
dd69841b
BB
2169 PL_isarev = newHV();
2170
0c4f7ff0 2171 boot_core_PerlIO();
6224f72b 2172 boot_core_UNIVERSAL();
e1a479c5 2173 boot_core_mro();
4a5df386 2174 newXS("Internals::V", S_Internals_V, __FILE__);
6224f72b
GS
2175
2176 if (xsinit)
acfe0abc 2177 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
64ca3a65 2178#ifndef PERL_MICRO
739a0b84 2179#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(SYMBIAN)
c5be433b 2180 init_os_extras();
6224f72b 2181#endif
64ca3a65 2182#endif
6224f72b 2183
29209bc5 2184#ifdef USE_SOCKS
1b9c9cf5
DH
2185# ifdef HAS_SOCKS5_INIT
2186 socks5_init(argv[0]);
2187# else
29209bc5 2188 SOCKSinit(argv[0]);
1b9c9cf5 2189# endif
ac27b0f5 2190#endif
29209bc5 2191
6224f72b
GS
2192 init_predump_symbols();
2193 /* init_postdump_symbols not currently designed to be called */
2194 /* more than once (ENV isn't cleared first, for example) */
2195 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
3280af22 2196 if (!PL_do_undump)
6224f72b
GS
2197 init_postdump_symbols(argc,argv,env);
2198
27da23d5
JH
2199 /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE},
2200 * or explicitly in some platforms.
085a54d9 2201 * locale.c:Perl_init_i18nl10n() if the environment
a05d7ebb 2202 * look like the user wants to use UTF-8. */
a0fd4948 2203#if defined(__SYMBIAN32__)
27da23d5
JH
2204 PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */
2205#endif
e27b5b51 2206# ifndef PERL_IS_MINIPERL
06e66572
JH
2207 if (PL_unicode) {
2208 /* Requires init_predump_symbols(). */
a05d7ebb 2209 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
06e66572
JH
2210 IO* io;
2211 PerlIO* fp;
2212 SV* sv;
2213
a05d7ebb 2214 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
06e66572 2215 * and the default open disciplines. */
a05d7ebb
JH
2216 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
2217 PL_stdingv && (io = GvIO(PL_stdingv)) &&
2218 (fp = IoIFP(io)))
2219 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2220 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
2221 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
2222 (fp = IoOFP(io)))
2223 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2224 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
2225 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
2226 (fp = IoOFP(io)))
2227 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2228 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
fafc274c
NC
2229 (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL,
2230 SVt_PV)))) {
a05d7ebb
JH
2231 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
2232 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
2233 if (in) {
2234 if (out)
76f68e9b 2235 sv_setpvs(sv, ":utf8\0:utf8");
a05d7ebb 2236 else
76f68e9b 2237 sv_setpvs(sv, ":utf8\0");
a05d7ebb
JH
2238 }
2239 else if (out)
76f68e9b 2240 sv_setpvs(sv, "\0:utf8");
a05d7ebb
JH
2241 SvSETMAGIC(sv);
2242 }
b310b053
JH
2243 }
2244 }
e27b5b51 2245#endif
b310b053 2246
c7030b81
NC
2247 {
2248 const char *s;
4ffa73a3
JH
2249 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
2250 if (strEQ(s, "unsafe"))
2251 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
2252 else if (strEQ(s, "safe"))
2253 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
2254 else
2255 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
2256 }
c7030b81 2257 }
4ffa73a3 2258
81d86705 2259
87606032 2260 lex_start(linestr_sv, rsfp, lex_start_flags);
d2687c98 2261 SvREFCNT_dec(linestr_sv);
95670bde 2262
219f7226 2263 PL_subname = newSVpvs("main");
6224f72b 2264
5486870f
DM
2265 if (add_read_e_script)
2266 filter_add(read_e_script, NULL);
2267
6224f72b
GS
2268 /* now parse the script */
2269
93189314 2270 SETERRNO(0,SS_NORMAL);
28ac2b49 2271 if (yyparse(GRAMPROG) || PL_parser->error_count) {
3280af22 2272 if (PL_minus_c)
cea2e8a9 2273 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
6224f72b 2274 else {
cea2e8a9 2275 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
097ee67d 2276 PL_origfilename);
6224f72b
GS
2277 }
2278 }
57843af0 2279 CopLINE_set(PL_curcop, 0);
03d9f026 2280 SET_CURSTASH(PL_defstash);
3280af22
NIS
2281 if (PL_e_script) {
2282 SvREFCNT_dec(PL_e_script);
a0714e2c 2283 PL_e_script = NULL;
6224f72b
GS
2284 }
2285
3280af22 2286 if (PL_do_undump)
6224f72b
GS
2287 my_unexec();
2288
57843af0
GS
2289 if (isWARN_ONCE) {
2290 SAVECOPFILE(PL_curcop);
2291 SAVECOPLINE(PL_curcop);
3280af22 2292 gv_check(PL_defstash);
57843af0 2293 }
6224f72b
GS
2294
2295 LEAVE;
2296 FREETMPS;
2297
2298#ifdef MYMALLOC
f6a607bc
RGS
2299 {
2300 const char *s;
96e440d2
JH
2301 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && grok_atou(s, NULL) >= 2)
2302 dump_mstats("after compilation:");
f6a607bc 2303 }
6224f72b
GS
2304#endif
2305
2306 ENTER;
febb3a6d 2307 PL_restartjmpenv = NULL;
3280af22 2308 PL_restartop = 0;
312caa8e 2309 return NULL;
6224f72b
GS
2310}
2311
954c1994
GS
2312/*
2313=for apidoc perl_run
2314
2315Tells a Perl interpreter to run. See L<perlembed>.
2316
2317=cut
2318*/
2319
6224f72b 2320int
0cb96387 2321perl_run(pTHXx)
6224f72b 2322{
6224f72b 2323 I32 oldscope;
14dd3ad8 2324 int ret = 0;
db36c5a1 2325 dJMPENV;
6224f72b 2326
7918f24d
NC
2327 PERL_ARGS_ASSERT_PERL_RUN;
2328#ifndef MULTIPLICITY
ed6c66dd 2329 PERL_UNUSED_ARG(my_perl);
7918f24d 2330#endif
9d4ba2ae 2331
3280af22 2332 oldscope = PL_scopestack_ix;
96e176bf
CL
2333#ifdef VMS
2334 VMSISH_HUSHED = 0;
2335#endif
6224f72b 2336
14dd3ad8 2337 JMPENV_PUSH(ret);
6224f72b
GS
2338 switch (ret) {
2339 case 1:
2340 cxstack_ix = -1; /* start context stack again */
312caa8e 2341 goto redo_body;
14dd3ad8 2342 case 0: /* normal completion */
14dd3ad8
GS
2343 redo_body:
2344 run_body(oldscope);
924ba076 2345 /* FALLTHROUGH */
14dd3ad8 2346 case 2: /* my_exit() */
3280af22 2347 while (PL_scopestack_ix > oldscope)
6224f72b
GS
2348 LEAVE;
2349 FREETMPS;
03d9f026 2350 SET_CURSTASH(PL_defstash);
3a1ee7e8 2351 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
9ebf26ad 2352 PL_endav && !PL_minus_c) {
ca7b837b 2353 PERL_SET_PHASE(PERL_PHASE_END);
31d77e54 2354 call_list(oldscope, PL_endav);
9ebf26ad 2355 }
6224f72b
GS
2356#ifdef MYMALLOC
2357 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
2358 dump_mstats("after execution: ");
2359#endif
37038d91 2360 ret = STATUS_EXIT;
14dd3ad8 2361 break;
6224f72b 2362 case 3:
312caa8e
CS
2363 if (PL_restartop) {
2364 POPSTACK_TO(PL_mainstack);
2365 goto redo_body;
6224f72b 2366 }
5637ef5b 2367 PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n");
312caa8e 2368 FREETMPS;
14dd3ad8
GS
2369 ret = 1;
2370 break;
6224f72b
GS
2371 }
2372
14dd3ad8
GS
2373 JMPENV_POP;
2374 return ret;
312caa8e
CS
2375}
2376
dd374669 2377STATIC void
14dd3ad8
GS
2378S_run_body(pTHX_ I32 oldscope)
2379{
d3b97530
DM
2380 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support (0x%x).\n",
2381 PL_sawampersand ? "Enabling" : "Omitting",
2382 (unsigned int)(PL_sawampersand)));
6224f72b 2383
3280af22 2384 if (!PL_restartop) {
cf2782cd 2385#ifdef DEBUGGING
f0e3f042
CS
2386 if (DEBUG_x_TEST || DEBUG_B_TEST)
2387 dump_all_perl(!DEBUG_B_TEST);
ecae49c0
NC
2388 if (!DEBUG_q_TEST)
2389 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
cf2782cd 2390#endif
6224f72b 2391
3280af22 2392 if (PL_minus_c) {
bf49b057 2393 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
6224f72b
GS
2394 my_exit(0);
2395 }
3280af22 2396 if (PERLDB_SINGLE && PL_DBsingle)
a6d69523 2397 PL_DBsingle_iv = 1;
9ebf26ad 2398 if (PL_initav) {
ca7b837b 2399 PERL_SET_PHASE(PERL_PHASE_INIT);
3280af22 2400 call_list(oldscope, PL_initav);
9ebf26ad 2401 }
f1fac472 2402#ifdef PERL_DEBUG_READONLY_OPS
3107b51f
FC
2403 if (PL_main_root && PL_main_root->op_slabbed)
2404 Slab_to_ro(OpSLAB(PL_main_root));
f1fac472 2405#endif
6224f72b
GS
2406 }
2407
2408 /* do it */
2409
ca7b837b 2410 PERL_SET_PHASE(PERL_PHASE_RUN);
9ebf26ad 2411
3280af22 2412 if (PL_restartop) {
febb3a6d 2413 PL_restartjmpenv = NULL;
533c011a 2414 PL_op = PL_restartop;
3280af22 2415 PL_restartop = 0;
cea2e8a9 2416 CALLRUNOPS(aTHX);
6224f72b 2417 }
3280af22
NIS
2418 else if (PL_main_start) {
2419 CvDEPTH(PL_main_cv) = 1;
533c011a 2420 PL_op = PL_main_start;
cea2e8a9 2421 CALLRUNOPS(aTHX);
6224f72b 2422 }
f6b3007c 2423 my_exit(0);
e5964223 2424 NOT_REACHED; /* NOTREACHED */
6224f72b
GS
2425}
2426
954c1994 2427/*
ccfc67b7
JH
2428=head1 SV Manipulation Functions
2429
954c1994
GS
2430=for apidoc p||get_sv
2431
64ace3f8 2432Returns the SV of the specified Perl scalar. C<flags> are passed to
72d33970 2433C<gv_fetchpv>. If C<GV_ADD> is set and the
64ace3f8
NC
2434Perl variable does not exist then it will be created. If C<flags> is zero
2435and the variable does not exist then NULL is returned.
954c1994
GS
2436
2437=cut
2438*/
2439
6224f72b 2440SV*
64ace3f8 2441Perl_get_sv(pTHX_ const char *name, I32 flags)
6224f72b
GS
2442{
2443 GV *gv;
7918f24d
NC
2444
2445 PERL_ARGS_ASSERT_GET_SV;
2446
64ace3f8 2447 gv = gv_fetchpv(name, flags, SVt_PV);
6224f72b
GS
2448 if (gv)
2449 return GvSV(gv);
a0714e2c 2450 return NULL;
6224f72b
GS
2451}
2452
954c1994 2453/*
ccfc67b7
JH
2454=head1 Array Manipulation Functions
2455
954c1994
GS
2456=for apidoc p||get_av
2457
f0b90de1
SF
2458Returns the AV of the specified Perl global or package array with the given
2459name (so it won't work on lexical variables). C<flags> are passed
72d33970 2460to C<gv_fetchpv>. If C<GV_ADD> is set and the
cbfd0a87
NC
2461Perl variable does not exist then it will be created. If C<flags> is zero
2462and the variable does not exist then NULL is returned.
954c1994 2463
f0b90de1
SF
2464Perl equivalent: C<@{"$name"}>.
2465
954c1994
GS
2466=cut
2467*/
2468
6224f72b 2469AV*
cbfd0a87 2470Perl_get_av(pTHX_ const char *name, I32 flags)
6224f72b 2471{
cbfd0a87 2472 GV* const gv = gv_fetchpv(name, flags, SVt_PVAV);
7918f24d
NC
2473
2474 PERL_ARGS_ASSERT_GET_AV;
2475
cbfd0a87 2476 if (flags)
6224f72b
GS
2477 return GvAVn(gv);
2478 if (gv)
2479 return GvAV(gv);
7d49f689 2480 return NULL;
6224f72b
GS
2481}
2482
954c1994 2483/*
ccfc67b7
JH
2484=head1 Hash Manipulation Functions
2485
954c1994
GS
2486=for apidoc p||get_hv
2487
6673a63c 2488Returns the HV of the specified Perl hash. C<flags> are passed to
72d33970 2489C<gv_fetchpv>. If C<GV_ADD> is set and the
6673a63c
NC
2490Perl variable does not exist then it will be created. If C<flags> is zero
2491and the variable does not exist then NULL is returned.
954c1994
GS
2492
2493=cut
2494*/
2495
6224f72b 2496HV*
6673a63c 2497Perl_get_hv(pTHX_ const char *name, I32 flags)
6224f72b 2498{
6673a63c 2499 GV* const gv = gv_fetchpv(name, flags, SVt_PVHV);
7918f24d
NC
2500
2501 PERL_ARGS_ASSERT_GET_HV;
2502
6673a63c 2503 if (flags)
a0d0e21e
LW
2504 return GvHVn(gv);
2505 if (gv)
2506 return GvHV(gv);
5c284bb0 2507 return NULL;
a0d0e21e
LW
2508}
2509
954c1994 2510/*
ccfc67b7
JH
2511=head1 CV Manipulation Functions
2512
780a5241
NC
2513=for apidoc p||get_cvn_flags
2514
2515Returns the CV of the specified Perl subroutine. C<flags> are passed to
72d33970 2516C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
780a5241
NC
2517exist then it will be declared (which has the same effect as saying
2518C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
2519then NULL is returned.
2520
954c1994
GS
2521=for apidoc p||get_cv
2522
780a5241 2523Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
954c1994
GS
2524
2525=cut
2526*/
2527
a0d0e21e 2528CV*
780a5241 2529Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags)
a0d0e21e 2530{
780a5241 2531 GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV);
7918f24d
NC
2532
2533 PERL_ARGS_ASSERT_GET_CVN_FLAGS;
2534
334dda80
FC
2535 /* XXX this is probably not what they think they're getting.
2536 * It has the same effect as "sub name;", i.e. just a forward
2537 * declaration! */
780a5241 2538 if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
186a5ba8 2539 return newSTUB(gv,0);
780a5241 2540 }
a0d0e21e 2541 if (gv)
8ebc5c01 2542 return GvCVu(gv);
601f1833 2543 return NULL;
a0d0e21e
LW
2544}
2545
2c67934f
NC
2546/* Nothing in core calls this now, but we can't replace it with a macro and
2547 move it to mathoms.c as a macro would evaluate name twice. */
780a5241
NC
2548CV*
2549Perl_get_cv(pTHX_ const char *name, I32 flags)
2550{
7918f24d
NC
2551 PERL_ARGS_ASSERT_GET_CV;
2552
780a5241
NC
2553 return get_cvn_flags(name, strlen(name), flags);
2554}
2555
79072805
LW
2556/* Be sure to refetch the stack pointer after calling these routines. */
2557
954c1994 2558/*
ccfc67b7
JH
2559
2560=head1 Callback Functions
2561
954c1994
GS
2562=for apidoc p||call_argv
2563
f0b90de1 2564Performs a callback to the specified named and package-scoped Perl subroutine
72d33970
FC
2565with C<argv> (a NULL-terminated array of strings) as arguments. See
2566L<perlcall>.
f0b90de1
SF
2567
2568Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>.
954c1994
GS
2569
2570=cut
2571*/
2572
a0d0e21e 2573I32
5aaab254 2574Perl_call_argv(pTHX_ const char *sub_name, I32 flags, char **argv)
ac27b0f5 2575
8ac85365
NIS
2576 /* See G_* flags in cop.h */
2577 /* null terminated arg list */
8990e307 2578{
a0d0e21e 2579 dSP;
8990e307 2580
7918f24d
NC
2581 PERL_ARGS_ASSERT_CALL_ARGV;
2582
924508f0 2583 PUSHMARK(SP);
a0d0e21e 2584 if (argv) {
8990e307 2585 while (*argv) {
6e449a3a 2586 mXPUSHs(newSVpv(*argv,0));
8990e307
LW
2587 argv++;
2588 }
a0d0e21e 2589 PUTBACK;
8990e307 2590 }
864dbfa3 2591 return call_pv(sub_name, flags);
8990e307
LW
2592}
2593
954c1994
GS
2594/*
2595=for apidoc p||call_pv
2596
2597Performs a callback to the specified Perl sub. See L<perlcall>.
2598
2599=cut
2600*/
2601
a0d0e21e 2602I32
864dbfa3 2603Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
8ac85365
NIS
2604 /* name of the subroutine */
2605 /* See G_* flags in cop.h */
a0d0e21e 2606{
7918f24d
NC
2607 PERL_ARGS_ASSERT_CALL_PV;
2608
0da0e728 2609 return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags);
a0d0e21e
LW
2610}
2611
954c1994
GS
2612/*
2613=for apidoc p||call_method
2614
2615Performs a callback to the specified Perl method. The blessed object must
2616be on the stack. See L<perlcall>.
2617
2618=cut
2619*/
2620
a0d0e21e 2621I32
864dbfa3 2622Perl_call_method(pTHX_ const char *methname, I32 flags)
8ac85365
NIS
2623 /* name of the subroutine */
2624 /* See G_* flags in cop.h */
a0d0e21e 2625{
46ca9bac 2626 STRLEN len;
c106c2be 2627 SV* sv;
7918f24d
NC
2628 PERL_ARGS_ASSERT_CALL_METHOD;
2629
46ca9bac 2630 len = strlen(methname);
c106c2be
RZ
2631 sv = flags & G_METHOD_NAMED
2632 ? sv_2mortal(newSVpvn_share(methname, len,0))
2633 : newSVpvn_flags(methname, len, SVs_TEMP);
46ca9bac 2634
c106c2be 2635 return call_sv(sv, flags | G_METHOD);
a0d0e21e
LW
2636}
2637
2638/* May be called with any of a CV, a GV, or an SV containing the name. */
954c1994
GS
2639/*
2640=for apidoc p||call_sv
2641
2642Performs a callback to the Perl sub whose name is in the SV. See
2643L<perlcall>.
2644
2645=cut
2646*/
2647
a0d0e21e 2648I32
001d637e 2649Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
8ac85365 2650 /* See G_* flags in cop.h */
a0d0e21e 2651{
27da23d5 2652 dVAR; dSP;
a0d0e21e 2653 LOGOP myop; /* fake syntax tree node */
b46e009d 2654 METHOP method_op;
aa689395 2655 I32 oldmark;
8ea43dc8 2656 VOL I32 retval = 0;
a0d0e21e 2657 I32 oldscope;
54310121 2658 bool oldcatch = CATCH_GET;
6224f72b 2659 int ret;
c4420975 2660 OP* const oldop = PL_op;
db36c5a1 2661 dJMPENV;
1e422769 2662
7918f24d
NC
2663 PERL_ARGS_ASSERT_CALL_SV;
2664
a0d0e21e
LW
2665 if (flags & G_DISCARD) {
2666 ENTER;
2667 SAVETMPS;
2668 }
2f8edad0
NC
2669 if (!(flags & G_WANT)) {
2670 /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
2671 */
2672 flags |= G_SCALAR;
2673 }
a0d0e21e 2674
aa689395 2675 Zero(&myop, 1, LOGOP);
f51d4af5 2676 if (!(flags & G_NOARGS))
aa689395 2677 myop.op_flags |= OPf_STACKED;
4f911530 2678 myop.op_flags |= OP_GIMME_REVERSE(flags);
462e5cf6 2679 SAVEOP();
533c011a 2680 PL_op = (OP*)&myop;
aa689395 2681
3280af22 2682 EXTEND(PL_stack_sp, 1);
c106c2be
RZ
2683 if (!(flags & G_METHOD_NAMED))
2684 *++PL_stack_sp = sv;
aa689395 2685 oldmark = TOPMARK;
3280af22 2686 oldscope = PL_scopestack_ix;
a0d0e21e 2687
3280af22 2688 if (PERLDB_SUB && PL_curstash != PL_debstash
36477c24 2689 /* Handle first BEGIN of -d. */
3280af22 2690 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
36477c24
PP
2691 /* Try harder, since this may have been a sighandler, thus
2692 * curstash may be meaningless. */
ea726b52 2693 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
491527d0 2694 && !(flags & G_NODEBUG))
5ff48db8 2695 myop.op_private |= OPpENTERSUB_DB;
a0d0e21e 2696
c106c2be 2697 if (flags & (G_METHOD|G_METHOD_NAMED)) {
b46e009d 2698 Zero(&method_op, 1, METHOP);
2699 method_op.op_next = (OP*)&myop;
2700 PL_op = (OP*)&method_op;
c106c2be 2701 if ( flags & G_METHOD_NAMED ) {
b46e009d 2702 method_op.op_ppaddr = PL_ppaddr[OP_METHOD_NAMED];
2703 method_op.op_type = OP_METHOD_NAMED;
2704 method_op.op_u.op_meth_sv = sv;
c106c2be 2705 } else {
b46e009d 2706 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
2707 method_op.op_type = OP_METHOD;
c106c2be
RZ
2708 }
2709 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
2710 myop.op_type = OP_ENTERSUB;
968b3946
GS
2711 }
2712
312caa8e 2713 if (!(flags & G_EVAL)) {
0cdb2077 2714 CATCH_SET(TRUE);
d6f07c05 2715 CALL_BODY_SUB((OP*)&myop);
312caa8e 2716 retval = PL_stack_sp - (PL_stack_base + oldmark);
0253cb41 2717 CATCH_SET(oldcatch);
312caa8e
CS
2718 }
2719 else {
d78bda3d 2720 myop.op_other = (OP*)&myop;
3280af22 2721 PL_markstack_ptr--;
edb2152a 2722 create_eval_scope(flags|G_FAKINGEVAL);
3280af22 2723 PL_markstack_ptr++;
a0d0e21e 2724
14dd3ad8 2725 JMPENV_PUSH(ret);
edb2152a 2726
6224f72b
GS
2727 switch (ret) {
2728 case 0:
14dd3ad8 2729 redo_body:
d6f07c05 2730 CALL_BODY_SUB((OP*)&myop);
312caa8e 2731 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2732 if (!(flags & G_KEEPERR)) {
ab69dbc2 2733 CLEAR_ERRSV();
8433848b 2734 }
a0d0e21e 2735 break;
6224f72b 2736 case 1:
f86702cc 2737 STATUS_ALL_FAILURE;
924ba076 2738 /* FALLTHROUGH */
6224f72b 2739 case 2:
a0d0e21e 2740 /* my_exit() was called */
03d9f026 2741 SET_CURSTASH(PL_defstash);
a0d0e21e 2742 FREETMPS;
14dd3ad8 2743 JMPENV_POP;
f86702cc 2744 my_exit_jump();
e5964223 2745 NOT_REACHED; /* NOTREACHED */
6224f72b 2746 case 3:
3280af22 2747 if (PL_restartop) {
febb3a6d 2748 PL_restartjmpenv = NULL;
533c011a 2749 PL_op = PL_restartop;
3280af22 2750 PL_restartop = 0;
312caa8e 2751 goto redo_body;
a0d0e21e 2752 }
3280af22 2753 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2754 if ((flags & G_WANT) == G_ARRAY)
a0d0e21e
LW
2755 retval = 0;
2756 else {
2757 retval = 1;
3280af22 2758 *++PL_stack_sp = &PL_sv_undef;
a0d0e21e 2759 }
312caa8e 2760 break;
a0d0e21e 2761 }
a0d0e21e 2762
edb2152a
NC
2763 if (PL_scopestack_ix > oldscope)
2764 delete_eval_scope();
14dd3ad8 2765 JMPENV_POP;
a0d0e21e 2766 }
1e422769 2767
a0d0e21e 2768 if (flags & G_DISCARD) {
3280af22 2769 PL_stack_sp = PL_stack_base + oldmark;
a0d0e21e
LW
2770 retval = 0;
2771 FREETMPS;
2772 LEAVE;
2773 }
533c011a 2774 PL_op = oldop;
a0d0e21e
LW
2775 return retval;
2776}
2777
6e72f9df 2778/* Eval a string. The G_EVAL flag is always assumed. */
8990e307 2779
954c1994
GS
2780/*
2781=for apidoc p||eval_sv
2782
72d33970
FC
2783Tells Perl to C<eval> the string in the SV. It supports the same flags
2784as C<call_sv>, with the obvious exception of G_EVAL. See L<perlcall>.
954c1994
GS
2785
2786=cut
2787*/
2788
a0d0e21e 2789I32
864dbfa3 2790Perl_eval_sv(pTHX_ SV *sv, I32 flags)
ac27b0f5 2791
8ac85365 2792 /* See G_* flags in cop.h */
a0d0e21e 2793{
97aff369 2794 dVAR;
924508f0 2795 dSP;
a0d0e21e 2796 UNOP myop; /* fake syntax tree node */
8ea43dc8
SP
2797 VOL I32 oldmark = SP - PL_stack_base;
2798 VOL I32 retval = 0;
6224f72b 2799 int ret;
c4420975 2800 OP* const oldop = PL_op;
db36c5a1 2801 dJMPENV;
84902520 2802
7918f24d
NC
2803 PERL_ARGS_ASSERT_EVAL_SV;
2804
4633a7c4
LW
2805 if (flags & G_DISCARD) {
2806 ENTER;
2807 SAVETMPS;
2808 }
2809
462e5cf6 2810 SAVEOP();
533c011a 2811 PL_op = (OP*)&myop;
5ff48db8 2812 Zero(&myop, 1, UNOP);
3280af22
NIS
2813 EXTEND(PL_stack_sp, 1);
2814 *++PL_stack_sp = sv;
79072805 2815
4633a7c4
LW
2816 if (!(flags & G_NOARGS))
2817 myop.op_flags = OPf_STACKED;
6e72f9df 2818 myop.op_type = OP_ENTEREVAL;
4f911530 2819 myop.op_flags |= OP_GIMME_REVERSE(flags);
6e72f9df
PP
2820 if (flags & G_KEEPERR)
2821 myop.op_flags |= OPf_SPECIAL;
a1941760
DM
2822
2823 if (flags & G_RE_REPARSING)
2824 myop.op_private = (OPpEVAL_COPHH | OPpEVAL_RE_REPARSING);
4633a7c4 2825
dedbcade
DM
2826 /* fail now; otherwise we could fail after the JMPENV_PUSH but
2827 * before a PUSHEVAL, which corrupts the stack after a croak */
2828 TAINT_PROPER("eval_sv()");
2829
14dd3ad8 2830 JMPENV_PUSH(ret);
6224f72b
GS
2831 switch (ret) {
2832 case 0:
14dd3ad8 2833 redo_body:
2ba65d5f
DM
2834 if (PL_op == (OP*)(&myop)) {
2835 PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX);
2836 if (!PL_op)
2837 goto fail; /* failed in compilation */
2838 }
4aca2f62 2839 CALLRUNOPS(aTHX);
312caa8e 2840 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2841 if (!(flags & G_KEEPERR)) {
ab69dbc2 2842 CLEAR_ERRSV();
8433848b 2843 }
4633a7c4 2844 break;
6224f72b 2845 case 1:
f86702cc 2846 STATUS_ALL_FAILURE;
924ba076 2847 /* FALLTHROUGH */
6224f72b 2848 case 2:
4633a7c4 2849 /* my_exit() was called */
03d9f026 2850 SET_CURSTASH(PL_defstash);
4633a7c4 2851 FREETMPS;
14dd3ad8 2852 JMPENV_POP;
f86702cc 2853 my_exit_jump();
e5964223 2854 NOT_REACHED; /* NOTREACHED */
6224f72b 2855 case 3:
3280af22 2856 if (PL_restartop) {
febb3a6d 2857 PL_restartjmpenv = NULL;
533c011a 2858 PL_op = PL_restartop;
3280af22 2859 PL_restartop = 0;
312caa8e 2860 goto redo_body;
4633a7c4 2861 }
4aca2f62 2862 fail:
3280af22 2863 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2864 if ((flags & G_WANT) == G_ARRAY)
4633a7c4
LW
2865 retval = 0;
2866 else {
2867 retval = 1;
3280af22 2868 *++PL_stack_sp = &PL_sv_undef;
4633a7c4 2869 }
312caa8e 2870 break;
4633a7c4
LW
2871 }
2872
14dd3ad8 2873 JMPENV_POP;
4633a7c4 2874 if (flags & G_DISCARD) {
3280af22 2875 PL_stack_sp = PL_stack_base + oldmark;
4633a7c4
LW
2876 retval = 0;
2877 FREETMPS;
2878 LEAVE;
2879 }
533c011a 2880 PL_op = oldop;
4633a7c4
LW
2881 return retval;
2882}
2883
954c1994
GS
2884/*
2885=for apidoc p||eval_pv
2886
422791e4 2887Tells Perl to C<eval> the given string in scalar context and return an SV* result.
954c1994
GS
2888
2889=cut
2890*/
2891
137443ea 2892SV*
864dbfa3 2893Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
137443ea 2894{
137443ea
PP
2895 SV* sv = newSVpv(p, 0);
2896
7918f24d
NC
2897 PERL_ARGS_ASSERT_EVAL_PV;
2898
864dbfa3 2899 eval_sv(sv, G_SCALAR);
137443ea
PP
2900 SvREFCNT_dec(sv);
2901
ed1786ad
DD
2902 {
2903 dSP;
2904 sv = POPs;
2905 PUTBACK;
2906 }
137443ea 2907
eed484f9
DD
2908 /* just check empty string or undef? */
2909 if (croak_on_error) {
2910 SV * const errsv = ERRSV;
2911 if(SvTRUE_NN(errsv))
2912 /* replace with croak_sv? */
2913 Perl_croak_nocontext("%s", SvPV_nolen_const(errsv));
2d8e6c8d 2914 }
137443ea
PP
2915
2916 return sv;
2917}
2918
4633a7c4
LW
2919/* Require a module. */
2920
954c1994 2921/*
ccfc67b7
JH
2922=head1 Embedding Functions
2923
954c1994
GS
2924=for apidoc p||require_pv
2925
7d3fb230
BS
2926Tells Perl to C<require> the file named by the string argument. It is
2927analogous to the Perl code C<eval "require '$file'">. It's even
2307c6d0 2928implemented that way; consider using load_module instead.
954c1994 2929
7d3fb230 2930=cut */
954c1994 2931
4633a7c4 2932void
864dbfa3 2933Perl_require_pv(pTHX_ const char *pv)
4633a7c4 2934{
d3acc0f7 2935 dSP;
97aff369 2936 SV* sv;
7918f24d
NC
2937
2938 PERL_ARGS_ASSERT_REQUIRE_PV;
2939
e788e7d3 2940 PUSHSTACKi(PERLSI_REQUIRE);
be41e5d9
NC
2941 sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
2942 eval_sv(sv_2mortal(sv), G_DISCARD);
d3acc0f7 2943 POPSTACK;
79072805
LW
2944}
2945
76e3520e 2946STATIC void
b6f82619 2947S_usage(pTHX) /* XXX move this out into a module ? */
4633a7c4 2948{
ab821d7f 2949 /* This message really ought to be max 23 lines.
75c72d73 2950 * Removed -h because the user already knows that option. Others? */
fb73857a 2951
1566c39d
NC
2952 /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
2953 minimum of 509 character string literals. */
27da23d5 2954 static const char * const usage_msg[] = {
1566c39d
NC
2955" -0[octal] specify record separator (\\0, if no argument)\n"
2956" -a autosplit mode with -n or -p (splits $_ into @F)\n"
2957" -C[number/list] enables the listed Unicode features\n"
2958" -c check syntax only (runs BEGIN and CHECK blocks)\n"
2959" -d[:debugger] run program under debugger\n"
2960" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
2961" -e program one line of program (several -e's allowed, omit programfile)\n"
2962" -E program like -e, but enables all optional features\n"
2963" -f don't do $sitelib/sitecustomize.pl at startup\n"
2964" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
2965" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
2966" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
2967" -l[octal] enable line ending processing, specifies line terminator\n"
2968" -[mM][-]module execute \"use/no module...\" before executing program\n"
2969" -n assume \"while (<>) { ... }\" loop around program\n"
2970" -p assume loop like -n but print line also, like sed\n"
2971" -s enable rudimentary parsing for switches after programfile\n"
2972" -S look for programfile using PATH environment variable\n",
2973" -t enable tainting warnings\n"
2974" -T enable tainting checks\n"
2975" -u dump core after parsing program\n"
2976" -U allow unsafe operations\n"
2977" -v print version, patchlevel and license\n"
2978" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
60eaec42 2979" -w enable many useful warnings\n"
1566c39d
NC
2980" -W enable all warnings\n"
2981" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
2982" -X disable all warnings\n"
2983" \n"
2984"Run 'perldoc perl' for more help with Perl.\n\n",
fb73857a
PP
2985NULL
2986};
27da23d5 2987 const char * const *p = usage_msg;
1566c39d 2988 PerlIO *out = PerlIO_stdout();
fb73857a 2989
1566c39d
NC
2990 PerlIO_printf(out,
2991 "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
b6f82619 2992 PL_origargv[0]);
fb73857a 2993 while (*p)
1566c39d 2994 PerlIO_puts(out, *p++);
b6f82619 2995 my_exit(0);
4633a7c4
LW
2996}
2997
b4ab917c
DM
2998/* convert a string of -D options (or digits) into an int.
2999 * sets *s to point to the char after the options */
3000
3001#ifdef DEBUGGING
3002int
e1ec3a88 3003Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
b4ab917c 3004{
27da23d5 3005 static const char * const usage_msgd[] = {
651b8f1a
NC
3006 " Debugging flag values: (see also -d)\n"
3007 " p Tokenizing and parsing (with v, displays parse stack)\n"
3008 " s Stack snapshots (with v, displays all stacks)\n"
3009 " l Context (loop) stack processing\n"
3010 " t Trace execution\n"
3011 " o Method and overloading resolution\n",
3012 " c String/numeric conversions\n"
3013 " P Print profiling info, source file input state\n"
3014 " m Memory and SV allocation\n"
3015 " f Format processing\n"
3016 " r Regular expression parsing and execution\n"
3017 " x Syntax tree dump\n",
3018 " u Tainting checks\n"
3019 " H Hash dump -- usurps values()\n"
3020 " X Scratchpad allocation\n"
3021 " D Cleaning up\n"
56967202 3022 " S Op slab allocation\n"
651b8f1a
NC
3023 " T Tokenising\n"
3024 " R Include reference counts of dumped variables (eg when using -Ds)\n",
3025 " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
3026 " v Verbose: use in conjunction with other flags\n"
3027 " C Copy On Write\n"
3028 " A Consistency checks on internal structures\n"
3029 " q quiet - currently only suppresses the 'EXECUTING' message\n"
3030 " M trace smart match resolution\n"
3031 " B dump suBroutine definitions, including special Blocks like BEGIN\n",
69014004 3032 " L trace some locale setting information--for Perl core development\n",
e6e64d9b
JC
3033 NULL
3034 };
b4ab917c 3035 int i = 0;
7918f24d
NC
3036
3037 PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
3038
b4ab917c
DM
3039 if (isALPHA(**s)) {
3040 /* if adding extra options, remember to update DEBUG_MASK */
69014004 3041 static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMBL";
b4ab917c 3042
0eb30aeb 3043 for (; isWORDCHAR(**s); (*s)++) {
c4420975 3044 const char * const d = strchr(debopts,**s);
b4ab917c
DM
3045 if (d)
3046 i |= 1 << (d - debopts);
3047 else if (ckWARN_d(WARN_DEBUGGING))
e6e64d9b
JC
3048 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3049 "invalid option -D%c, use -D'' to see choices\n", **s);
b4ab917c
DM
3050 }
3051 }
e6e64d9b 3052 else if (isDIGIT(**s)) {
96e440d2
JH
3053 const char* e;
3054 i = grok_atou(*s, &e);
3055 if (e)
3056 *s = e;
0eb30aeb 3057 for (; isWORDCHAR(**s); (*s)++) ;
b4ab917c 3058 }
ddcf8bc1 3059 else if (givehelp) {
06e869a4 3060 const char *const *p = usage_msgd;
651b8f1a 3061 while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
e6e64d9b 3062 }
b4ab917c
DM
3063 return i;
3064}
3065#endif
3066
79072805
LW
3067/* This routine handles any switches that can be given during run */
3068
c7030b81
NC
3069const char *
3070Perl_moreswitches(pTHX_ const char *s)
79072805 3071{
27da23d5 3072 dVAR;
84c133a0 3073 UV rschar;
0544e6df 3074 const char option = *s; /* used to remember option in -m/-M code */
79072805 3075
7918f24d
NC
3076 PERL_ARGS_ASSERT_MORESWITCHES;
3077
79072805
LW
3078 switch (*s) {
3079 case '0':
a863c7d1 3080 {
f2095865 3081 I32 flags = 0;
a3b680e6 3082 STRLEN numlen;
f2095865
JH
3083
3084 SvREFCNT_dec(PL_rs);
3085 if (s[1] == 'x' && s[2]) {
a3b680e6 3086 const char *e = s+=2;
f2095865
JH
3087 U8 *tmps;
3088
a3b680e6
AL
3089 while (*e)
3090 e++;
f2095865
JH
3091 numlen = e - s;
3092 flags = PERL_SCAN_SILENT_ILLDIGIT;
3093 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
3094 if (s + numlen < e) {
3095 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
3096 numlen = 0;
3097 s--;
3098 }
396482e1 3099 PL_rs = newSVpvs("");
c5661c80 3100 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
f2095865
JH
3101 tmps = (U8*)SvPVX(PL_rs);
3102 uvchr_to_utf8(tmps, rschar);
3103 SvCUR_set(PL_rs, UNISKIP(rschar));
3104 SvUTF8_on(PL_rs);
3105 }
3106 else {
3107 numlen = 4;
3108 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
3109 if (rschar & ~((U8)~0))
3110 PL_rs = &PL_sv_undef;
3111 else if (!rschar && numlen >= 2)
396482e1 3112 PL_rs = newSVpvs("");
f2095865
JH
3113 else {
3114 char ch = (char)rschar;
3115 PL_rs = newSVpvn(&ch, 1);
3116 }
3117 }
64ace3f8 3118 sv_setsv(get_sv("/", GV_ADD), PL_rs);
f2095865 3119 return s + numlen;
a863c7d1 3120 }
46487f74 3121 case 'C':
a05d7ebb 3122 s++;
dd374669 3123 PL_unicode = parse_unicode_opts( (const char **)&s );
5a22a2bb
NC
3124 if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
3125 PL_utf8cache = -1;
46487f74 3126 return s;
2304df62 3127 case 'F':
5fc691f1 3128 PL_minus_a = TRUE;
3280af22 3129 PL_minus_F = TRUE;
24ffa309 3130 PL_minus_n = TRUE;
ebce5377
RGS
3131 PL_splitstr = ++s;
3132 while (*s && !isSPACE(*s)) ++s;
e49e380e 3133 PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr);
2304df62 3134 return s;
79072805 3135 case 'a':
3280af22 3136 PL_minus_a = TRUE;
24ffa309 3137 PL_minus_n = TRUE;
79072805
LW
3138 s++;
3139 return s;
3140 case 'c':
3280af22 3141 PL_minus_c = TRUE;
79072805
LW
3142 s++;
3143 return s;
3144 case 'd':
f20b2998 3145 forbid_setid('d', FALSE);
4633a7c4 3146 s++;
2cbb2ee1
RGS
3147
3148 /* -dt indicates to the debugger that threads will be used */
0eb30aeb 3149 if (*s == 't' && !isWORDCHAR(s[1])) {
2cbb2ee1
RGS
3150 ++s;
3151 my_setenv("PERL5DB_THREADED", "1");
3152 }
3153
70c94a19
RR
3154 /* The following permits -d:Mod to accepts arguments following an =
3155 in the fashion that -MSome::Mod does. */
3156 if (*s == ':' || *s == '=') {
b19934fb
NC
3157 const char *start;
3158 const char *end;
3159 SV *sv;
3160
3161 if (*++s == '-') {
3162 ++s;
3163 sv = newSVpvs("no Devel::");
3164 } else {
3165 sv = newSVpvs("use Devel::");
3166 }
3167
3168 start = s;
3169 end = s + strlen(s);
f85893a1 3170
b19934fb 3171 /* We now allow -d:Module=Foo,Bar and -d:-Module */
0eb30aeb 3172 while(isWORDCHAR(*s) || *s==':') ++s;
70c94a19 3173 if (*s != '=')
f85893a1 3174 sv_catpvn(sv, start, end - start);
70c94a19
RR
3175 else {
3176 sv_catpvn(sv, start, s-start);
95a2b409
RGS
3177 /* Don't use NUL as q// delimiter here, this string goes in the
3178 * environment. */
3179 Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s);
70c94a19 3180 }
f85893a1 3181 s = end;
184f32ec 3182 my_setenv("PERL5DB", SvPV_nolen_const(sv));
c4db126b 3183 SvREFCNT_dec(sv);
4633a7c4 3184 }
ed094faf 3185 if (!PL_perldb) {
3280af22 3186 PL_perldb = PERLDB_ALL;
a0d0e21e 3187 init_debugger();
ed094faf 3188 }
79072805
LW
3189 return s;
3190 case 'D':
0453d815 3191 {
79072805 3192#ifdef DEBUGGING
f20b2998 3193 forbid_setid('D', FALSE);
b4ab917c 3194 s++;
dd374669 3195 PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG;
12a43e32 3196#else /* !DEBUGGING */
0453d815 3197 if (ckWARN_d(WARN_DEBUGGING))
9014280d 3198 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
e6e64d9b 3199 "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n");
0eb30aeb 3200 for (s++; isWORDCHAR(*s); s++) ;
79072805 3201#endif
79072805 3202 return s;
0453d815 3203 }
4633a7c4 3204 case 'h':
b6f82619 3205 usage();
79072805 3206 case 'i':
43c5f42d 3207 Safefree(PL_inplace);
c030f24b
GH
3208#if defined(__CYGWIN__) /* do backup extension automagically */
3209 if (*(s+1) == '\0') {
c86a4f2e 3210 PL_inplace = savepvs(".bak");
c030f24b
GH
3211 return s+1;
3212 }
3213#endif /* __CYGWIN__ */
5ef5d758 3214 {
d4c19fe8 3215 const char * const start = ++s;
5ef5d758
NC
3216 while (*s && !isSPACE(*s))
3217 ++s;
3218
3219 PL_inplace = savepvn(start, s - start);
3220 }
7b8d334a 3221 if (*s) {
5ef5d758 3222 ++s;
7b8d334a 3223 if (*s == '-') /* Additional switches on #! line. */
5ef5d758 3224 s++;
7b8d334a 3225 }
fb73857a 3226 return s;
4e49a025 3227 case 'I': /* -I handled both here and in parse_body() */
f20b2998 3228 forbid_setid('I', FALSE);
fb73857a
PP
3229 ++s;
3230 while (*s && isSPACE(*s))
3231 ++s;
3232 if (*s) {
c7030b81 3233 const char *e, *p;
0df16ed7
GS
3234 p = s;
3235 /* ignore trailing spaces (possibly followed by other switches) */
3236 do {
3237 for (e = p; *e && !isSPACE(*e); e++) ;
3238 p = e;
3239 while (isSPACE(*p))
3240 p++;
3241 } while (*p && *p != '-');
55b4bc1c 3242 incpush(s, e-s,
e28f3139 3243 INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT);
0df16ed7
GS
3244 s = p;
3245 if (*s == '-')
3246 s++;
79072805
LW
3247 }
3248 else
a67e862a 3249 Perl_croak(aTHX_ "No directory specified for -I");
fb73857a 3250 return s;
79072805 3251 case 'l':
3280af22 3252 PL_minus_l = TRUE;
79072805 3253 s++;
7889fe52
NIS
3254 if (PL_ors_sv) {
3255 SvREFCNT_dec(PL_ors_sv);
a0714e2c 3256 PL_ors_sv = NULL;
7889fe52 3257 }
79072805 3258 if (isDIGIT(*s)) {
53305cf1 3259 I32 flags = 0;
a3b680e6 3260 STRLEN numlen;
396482e1 3261 PL_ors_sv = newSVpvs("\n");
53305cf1
NC
3262 numlen = 3 + (*s == '0');
3263 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
79072805
LW
3264 s += numlen;
3265 }
3266 else {
8bfdd7d9 3267 if (RsPARA(PL_rs)) {
396482e1 3268 PL_ors_sv = newSVpvs("\n\n");
7889fe52
NIS
3269 }
3270 else {
8bfdd7d9 3271 PL_ors_sv = newSVsv(PL_rs);
c07a80fd 3272 }
79072805
LW
3273 }
3274 return s;
1a30305b 3275 case 'M':
f20b2998 3276 forbid_setid('M', FALSE); /* XXX ? */
924ba076 3277 /* FALLTHROUGH */
1a30305b 3278 case 'm':
f20b2998 3279 forbid_setid('m', FALSE); /* XXX ? */
1a30305b 3280 if (*++s) {
c7030b81 3281 const char *start;
b64cb68c 3282 const char *end;
11343788 3283 SV *sv;
e1ec3a88 3284 const char *use = "use ";
0544e6df 3285 bool colon = FALSE;
a5f75d66 3286 /* -M-foo == 'no foo' */
d0043bd1
NC
3287 /* Leading space on " no " is deliberate, to make both
3288 possibilities the same length. */
3289 if (*s == '-') { use = " no "; ++s; }
3290 sv = newSVpvn(use,4);
a5f75d66 3291 start = s;
1a30305b 3292 /* We allow -M'Module qw(Foo Bar)' */
0eb30aeb 3293 while(isWORDCHAR(*s) || *s==':') {
0544e6df
RB
3294 if( *s++ == ':' ) {
3295 if( *s == ':' )
3296 s++;
3297 else
3298 colon = TRUE;
3299 }
3300 }
3301 if (s == start)
3302 Perl_croak(aTHX_ "Module name required with -%c option",
3303 option);
3304 if (colon)
3305 Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
3306 "contains single ':'",
63da6837 3307 (int)(s - start), start, option);
b64cb68c 3308 end = s + strlen(s);
c07a80fd 3309 if (*s != '=') {
b64cb68c 3310 sv_catpvn(sv, start, end - start);
0544e6df 3311 if (option == 'm') {
c07a80fd 3312 if (*s != '\0')
cea2e8a9 3313 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
396482e1 3314 sv_catpvs( sv, " ()");
c07a80fd
PP
3315 }
3316 } else {
11343788 3317 sv_catpvn(sv, start, s-start);
b64cb68c
NC
3318 /* Use NUL as q''-delimiter. */
3319 sv_catpvs(sv, " split(/,/,q\0");
3320 ++s;
3321 sv_catpvn(sv, s, end - s);
396482e1 3322 sv_catpvs(sv, "\0)");
c07a80fd 3323 }
b64cb68c 3324 s = end;
29a861e7 3325 Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
1a30305b
PP
3326 }
3327 else
0544e6df 3328 Perl_croak(aTHX_ "Missing argument to -%c", option);
1a30305b 3329 return s;
79072805 3330 case 'n':
3280af22 3331 PL_minus_n = TRUE;
79072805
LW
3332 s++;
3333 return s;
3334 case 'p':
3280af22 3335 PL_minus_p = TRUE;
79072805
LW
3336 s++;
3337 return s;
3338 case 's':
f20b2998 3339 forbid_setid('s', FALSE);
3280af22 3340 PL_doswitches = TRUE;
79072805
LW
3341 s++;
3342 return s;
6537fe72 3343 case 't':
27a6968b 3344 case 'T':
dc6d7f5c 3345#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 3346 /* silently ignore */
dc6d7f5c 3347#elif defined(NO_TAINT_SUPPORT)
3231f579 3348 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
3349 "Cowardly refusing to run with -t or -T flags");
3350#else
3351 if (!TAINTING_get)
27a6968b 3352 TOO_LATE_FOR(*s);
284167a5 3353#endif
6537fe72 3354 s++;
463ee0b2 3355 return s;
79072805 3356 case 'u':
3280af22 3357 PL_do_undump = TRUE;
79072805
LW
3358 s++;
3359 return s;
3360 case 'U':
3280af22 3361 PL_unsafe = TRUE;
79072805
LW
3362 s++;
3363 return s;
3364 case 'v':
c4bc78d9
NC
3365 minus_v();
3366 case 'w':
3367 if (! (PL_dowarn & G_WARN_ALL_MASK)) {
3368 PL_dowarn |= G_WARN_ON;
3369 }
3370 s++;
3371 return s;
3372 case 'W':
3373 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
3374 if (!specialWARN(PL_compiling.cop_warnings))
3375 PerlMemShared_free(PL_compiling.cop_warnings);
3376 PL_compiling.cop_warnings = pWARN_ALL ;
3377 s++;
3378 return s;
3379 case 'X':
3380 PL_dowarn = G_WARN_ALL_OFF;
3381 if (!specialWARN(PL_compiling.cop_warnings))
3382 PerlMemShared_free(PL_compiling.cop_warnings);
3383 PL_compiling.cop_warnings = pWARN_NONE ;
3384 s++;
3385 return s;
3386 case '*':
3387 case ' ':
3388 while( *s == ' ' )
3389 ++s;
3390 if (s[0] == '-') /* Additional switches on #! line. */
3391 return s+1;
3392 break;
3393 case '-':
3394 case 0:
3395#if defined(WIN32) || !defined(PERL_STRICT_CR)
3396 case '\r':
3397#endif
3398 case '\n':
3399 case '\t':
3400 break;
3401#ifdef ALTERNATE_SHEBANG
3402 case 'S': /* OS/2 needs -S on "extproc" line. */
3403 break;
3404#endif
4bb78d63
CB
3405 case 'e': case 'f': case 'x': case 'E':
3406#ifndef ALTERNATE_SHEBANG
3407 case 'S':
3408#endif
3409 case 'V':
c4bc78d9 3410 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
b7e077d0
FC
3411 default:
3412 Perl_croak(aTHX_
3413 "Unrecognized switch: -%.1s (-h will show valid options)",s
3414 );
c4bc78d9
NC
3415 }
3416 return NULL;
3417}
3418
3419
3420STATIC void
3421S_minus_v(pTHX)
3422{
fc3381af 3423 PerlIO * PIO_stdout;
46807d8e 3424 {
709aee94
DD
3425 const char * const level_str = "v" PERL_VERSION_STRING;
3426 const STRLEN level_len = sizeof("v" PERL_VERSION_STRING)-1;
46807d8e 3427#ifdef PERL_PATCHNUM
709aee94 3428 SV* level;
23d483e2 3429# ifdef PERL_GIT_UNCOMMITTED_CHANGES
709aee94 3430 static const char num [] = PERL_PATCHNUM "*";
23d483e2 3431# else
709aee94 3432 static const char num [] = PERL_PATCHNUM;
23d483e2 3433# endif
fc3381af 3434 {
709aee94
DD
3435 const STRLEN num_len = sizeof(num)-1;
3436 /* A very advanced compiler would fold away the strnEQ
3437 and this whole conditional, but most (all?) won't do it.
3438 SV level could also be replaced by with preprocessor
3439 catenation.
3440 */
3441 if (num_len >= level_len && strnEQ(num,level_str,level_len)) {
3442 /* per 46807d8e80, PERL_PATCHNUM is outside of the control
3443 of the interp so it might contain format characters
3444 */
3445 level = newSVpvn(num, num_len);
fc3381af 3446 } else {
709aee94 3447 level = Perl_newSVpvf_nocontext("%s (%s)", level_str, num);
fc3381af 3448 }
46807d8e 3449 }
709aee94
DD
3450#else
3451 SV* level = newSVpvn(level_str, level_len);
3452#endif /* #ifdef PERL_PATCHNUM */
fc3381af
DD
3453 PIO_stdout = PerlIO_stdout();
3454 PerlIO_printf(PIO_stdout,
ded326e4
DG
3455 "\nThis is perl " STRINGIFY(PERL_REVISION)
3456 ", version " STRINGIFY(PERL_VERSION)
3457 ", subversion " STRINGIFY(PERL_SUBVERSION)
c1f6cd39 3458 " (%"SVf") built for " ARCHNAME, SVfARG(level)
ded326e4 3459 );
709aee94 3460 SvREFCNT_dec_NN(level);
46807d8e 3461 }
fb73857a
PP
3462#if defined(LOCAL_PATCH_COUNT)
3463 if (LOCAL_PATCH_COUNT > 0)
fc3381af 3464 PerlIO_printf(PIO_stdout,
b0e47665
GS
3465 "\n(with %d registered patch%s, "
3466 "see perl -V for more detail)",
bb7a0f54 3467 LOCAL_PATCH_COUNT,
b0e47665 3468 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
a5f75d66 3469#endif
1a30305b 3470
fc3381af 3471 PerlIO_printf(PIO_stdout,
fb435042 3472 "\n\nCopyright 1987-2014, Larry Wall\n");
79072805 3473#ifdef MSDOS
fc3381af 3474 PerlIO_printf(PIO_stdout,
b0e47665 3475 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
55497cff
PP
3476#endif
3477#ifdef DJGPP
fc3381af 3478 PerlIO_printf(PIO_stdout,
b0e47665
GS
3479 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
3480 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
4633a7c4 3481#endif
79072805 3482#ifdef OS2
fc3381af 3483 PerlIO_printf(PIO_stdout,
b0e47665 3484 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
be3c0a43 3485 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
79072805 3486#endif