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amigaos4: PERL_SYS_INIT_BODY and PERL_SYS_TERM_BODY
[perl5.git] / perl.c
CommitLineData
4b88f280 1#line 2 "perl.c"
a0d0e21e
LW		 2/* perl.c
3 *
737f4459 4 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
2eee27d7 5 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
010d7370 6 * by Larry Wall and others
a687059c 7 *
352d5a3a
LW		 8 * You may distribute under the terms of either the GNU General Public
9 * License or the Artistic License, as specified in the README file.
a687059c 10 *
8d063cd8
LW		 11 */
12
a0d0e21e 13/*
4ac71550
TC		 14 * A ship then new they built for him
15 * of mithril and of elven-glass
cdad3b53 16 * --from Bilbo's song of Eärendil
4ac71550
TC		 17 *
18 * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"]
a0d0e21e 19 */
45d8adaa 20
166f8a29
DM		 21/* This file contains the top-level functions that are used to create, use
22 * and destroy a perl interpreter, plus the functions used by XS code to
23 * call back into perl. Note that it does not contain the actual main()
ddfa107c 24 * function of the interpreter; that can be found in perlmain.c
166f8a29
DM		 25 */
26
c44493f1 27#if defined(PERL_IS_MINIPERL) && !defined(USE_SITECUSTOMIZE)
43c0c913
NC		 28# define USE_SITECUSTOMIZE
29#endif
30
378cc40b 31#include "EXTERN.h"
864dbfa3 32#define PERL_IN_PERL_C
378cc40b 33#include "perl.h"
e3321bb0 34#include "patchlevel.h" /* for local_patches */
4a5df386 35#include "XSUB.h"
378cc40b 36
011f1a1a
JH		 37#ifdef NETWARE
38#include "nwutil.h"
011f1a1a
JH		 39#endif
40
2aa47728 41#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
bf357333
NC		 42# ifdef I_SYSUIO
43# include <sys/uio.h>
44# endif
45
46union control_un {
47 struct cmsghdr cm;
48 char control[CMSG_SPACE(sizeof(int))];
49};
50
2aa47728
NC		 51#endif
52
5311654c
JH		 53#ifndef HZ
54# ifdef CLK_TCK
55# define HZ CLK_TCK
56# else
57# define HZ 60
58# endif
59#endif
60
7114a2d2 61#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
20ce7b12 62char *getenv (char *); /* Usually in <stdlib.h> */
54310121 63#endif
64
acfe0abc 65static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
0cb96387 66
cc69b689 67#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
b24bc095 68# define validate_suid(rsfp) NOOP
cc69b689 69#else
b24bc095 70# define validate_suid(rsfp) S_validate_suid(aTHX_ rsfp)
a687059c 71#endif
8d063cd8 72
d6f07c05
AL		 73#define CALL_BODY_SUB(myop) \
74 if (PL_op == (myop)) \
139d0ce6 75 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
d6f07c05
AL		 76 if (PL_op) \
77 CALLRUNOPS(aTHX);
78
79#define CALL_LIST_BODY(cv) \
80 PUSHMARK(PL_stack_sp); \
9a8aa25b 81 call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD|G_VOID);
d6f07c05 82
e6827a76 83static void
daa7d858 84S_init_tls_and_interp(PerlInterpreter *my_perl)
e6827a76 85{
27da23d5 86 dVAR;
e6827a76
NC		 87 if (!PL_curinterp) {
88 PERL_SET_INTERP(my_perl);
3db8f154 89#if defined(USE_ITHREADS)
e6827a76
NC		 90 INIT_THREADS;
91 ALLOC_THREAD_KEY;
92 PERL_SET_THX(my_perl);
93 OP_REFCNT_INIT;
e8570548 94 OP_CHECK_MUTEX_INIT;
71ad1b0c 95 HINTS_REFCNT_INIT;
e6827a76 96 MUTEX_INIT(&PL_dollarzero_mutex);
016af4f1
DM		 97 MUTEX_INIT(&PL_my_ctx_mutex);
98# endif
e6827a76 99 }
c0bce9aa
NC		 100#if defined(USE_ITHREADS)
101 else
102#else
103 /* This always happens for non-ithreads */
104#endif
105 {
e6827a76
NC		 106 PERL_SET_THX(my_perl);
107 }
108}
06d86050 109
cbec8ebe
DM		 110
111/* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */
112
113void
114Perl_sys_init(int* argc, char*** argv)
115{
4fc0badb 116 dVAR;
7918f24d
NC		 117
118 PERL_ARGS_ASSERT_SYS_INIT;
119
cbec8ebe
DM		 120 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
121 PERL_UNUSED_ARG(argv);
122 PERL_SYS_INIT_BODY(argc, argv);
123}
124
125void
126Perl_sys_init3(int* argc, char*** argv, char*** env)
127{
4fc0badb 128 dVAR;
7918f24d
NC		 129
130 PERL_ARGS_ASSERT_SYS_INIT3;
131
cbec8ebe
DM		 132 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
133 PERL_UNUSED_ARG(argv);
134 PERL_UNUSED_ARG(env);
135 PERL_SYS_INIT3_BODY(argc, argv, env);
136}
137
138void
88772978 139Perl_sys_term(void)
cbec8ebe 140{
4fc0badb 141 dVAR;
bf81751b
DM		 142 if (!PL_veto_cleanup) {
143 PERL_SYS_TERM_BODY();
144 }
cbec8ebe
DM		 145}
146
147
32e30700
GS		 148#ifdef PERL_IMPLICIT_SYS
149PerlInterpreter *
7766f137
GS		 150perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
151 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
32e30700
GS		 152 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
153 struct IPerlDir* ipD, struct IPerlSock* ipS,
154 struct IPerlProc* ipP)
155{
156 PerlInterpreter *my_perl;
7918f24d
NC		 157
158 PERL_ARGS_ASSERT_PERL_ALLOC_USING;
159
9f653bb5 160 /* Newx() needs interpreter, so call malloc() instead */
32e30700 161 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
e6827a76 162 S_init_tls_and_interp(my_perl);
32e30700
GS		 163 Zero(my_perl, 1, PerlInterpreter);
164 PL_Mem = ipM;
7766f137
GS		 165 PL_MemShared = ipMS;
166 PL_MemParse = ipMP;
32e30700
GS		 167 PL_Env = ipE;
168 PL_StdIO = ipStd;
169 PL_LIO = ipLIO;
170 PL_Dir = ipD;
171 PL_Sock = ipS;
172 PL_Proc = ipP;
7cb608b5 173 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
7766f137 174
32e30700
GS		 175 return my_perl;
176}
177#else
954c1994
GS		 178
179/*
ccfc67b7
JH		 180=head1 Embedding Functions
181
954c1994
GS		 182=for apidoc perl_alloc
183
184Allocates a new Perl interpreter. See L<perlembed>.
185
186=cut
187*/
188
93a17b20 189PerlInterpreter *
cea2e8a9 190perl_alloc(void)
79072805 191{
cea2e8a9 192 PerlInterpreter *my_perl;
79072805 193
9f653bb5 194 /* Newx() needs interpreter, so call malloc() instead */
e8ee3774 195 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
ba869deb 196
e6827a76 197 S_init_tls_and_interp(my_perl);
7cb608b5 198#ifndef PERL_TRACK_MEMPOOL
07409e01 199 return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter);
7cb608b5
NC		 200#else
201 Zero(my_perl, 1, PerlInterpreter);
202 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
203 return my_perl;
204#endif
79072805 205}
32e30700 206#endif /* PERL_IMPLICIT_SYS */
79072805 207
954c1994
GS		 208/*
209=for apidoc perl_construct
210
211Initializes a new Perl interpreter. See L<perlembed>.
212
213=cut
214*/
215
79072805 216void
0cb96387 217perl_construct(pTHXx)
79072805 218{
27da23d5 219 dVAR;
7918f24d
NC		 220
221 PERL_ARGS_ASSERT_PERL_CONSTRUCT;
222
8990e307 223#ifdef MULTIPLICITY
54aff467 224 init_interp();
ac27b0f5 225 PL_perl_destruct_level = 1;
54aff467 226#else
7918f24d 227 PERL_UNUSED_ARG(my_perl);
54aff467
GS		 228 if (PL_perl_destruct_level > 0)
229 init_interp();
230#endif
34caed6d
DM		 231 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
232
75d476e2
S		 233#ifdef PERL_TRACE_OPS
234 Zero(PL_op_exec_cnt, OP_max+2, UV);
235#endif
236
0d96b528 237 init_constants();
34caed6d
DM		 238
239 SvREADONLY_on(&PL_sv_placeholder);
fe54beba 240 SvREFCNT(&PL_sv_placeholder) = SvREFCNT_IMMORTAL;
34caed6d
DM		 241
242 PL_sighandlerp = (Sighandler_t) Perl_sighandler;
ca0c25f6 243#ifdef PERL_USES_PL_PIDSTATUS
34caed6d 244 PL_pidstatus = newHV();
ca0c25f6 245#endif
79072805 246
396482e1 247 PL_rs = newSVpvs("\n");
dc92893f 248
cea2e8a9 249 init_stacks();
79072805 250
748a9306 251 init_ids();
a5f75d66 252
312caa8e 253 JMPENV_BOOTSTRAP;
f86702cc 254 STATUS_ALL_SUCCESS;
255
0672f40e 256 init_i18nl10n(1);
0b5b802d 257
ab821d7f 258#if defined(LOCAL_PATCH_COUNT)
3280af22 259 PL_localpatches = local_patches; /* For possible -v */
ab821d7f 260#endif
261
52853b95
GS		 262#ifdef HAVE_INTERP_INTERN
263 sys_intern_init();
264#endif
265
3a1ee7e8 266 PerlIO_init(aTHX); /* Hook to IO system */
760ac839 267
3280af22
NIS		 268 PL_fdpid = newAV(); /* for remembering popen pids by fd */
269 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
396482e1 270 PL_errors = newSVpvs("");
76f68e9b
MHM		 271 sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
272 sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
273 sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
1fcf4c12 274#ifdef USE_ITHREADS
402d2eb1
NC		 275 /* First entry is a list of empty elements. It needs to be initialised
276 else all hell breaks loose in S_find_uninit_var(). */
277 Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs(""));
13137afc 278 PL_regex_pad = AvARRAY(PL_regex_padav);
d4d03940 279 Newxz(PL_stashpad, PL_stashpadmax, HV *);
1fcf4c12 280#endif
e5dd39fc 281#ifdef USE_REENTRANT_API
59bd0823 282 Perl_reentrant_init(aTHX);
e5dd39fc 283#endif
7dc86639
YO		 284#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
285 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
286 * This MUST be done before any hash stores or fetches take place.
287 * If you set PL_hash_seed (and presumably also PL_hash_seed_set)
288 * yourself, it is your responsibility to provide a good random seed!
289 * You can also define PERL_HASH_SEED in compile time, see hv.h.
290 *
291 * XXX: fix this comment */
292 if (PL_hash_seed_set == FALSE) {
293 Perl_get_hash_seed(aTHX_ PL_hash_seed);
294 PL_hash_seed_set= TRUE;
295 }
296#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3d47000e
AB		 297
298 /* Note that strtab is a rather special HV. Assumptions are made
299 about not iterating on it, and not adding tie magic to it.
300 It is properly deallocated in perl_destruct() */
301 PL_strtab = newHV();
302
3d47000e
AB		 303 HvSHAREKEYS_off(PL_strtab); /* mandatory */
304 hv_ksplit(PL_strtab, 512);
305
a38ab475
RZ		 306 Zero(PL_sv_consts, SV_CONSTS_COUNT, SV*);
307
2f42fcb0
JH		 308#ifndef PERL_MICRO
309# ifdef USE_ENVIRON_ARRAY
0631ea03 310 PL_origenviron = environ;
2f42fcb0 311# endif
0631ea03
AB		 312#endif
313
5311654c 314 /* Use sysconf(_SC_CLK_TCK) if available, if not
dbc1d986 315 * available or if the sysconf() fails, use the HZ.
27da23d5
JH		 316 * The HZ if not originally defined has been by now
317 * been defined as CLK_TCK, if available. */
b6c36746 318#if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
5311654c
JH		 319 PL_clocktick = sysconf(_SC_CLK_TCK);
320 if (PL_clocktick <= 0)
321#endif
322 PL_clocktick = HZ;
323
081fc587
AB		 324 PL_stashcache = newHV();
325
e8e3635e 326 PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
d7aa5382 327
27da23d5
JH		 328#ifdef HAS_MMAP
329 if (!PL_mmap_page_size) {
330#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE))
331 {
332 SETERRNO(0, SS_NORMAL);
333# ifdef _SC_PAGESIZE
334 PL_mmap_page_size = sysconf(_SC_PAGESIZE);
335# else
336 PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE);
337# endif
338 if ((long) PL_mmap_page_size < 0) {
339 if (errno) {
44f8325f 340 SV * const error = ERRSV;
d4c19fe8 341 SvUPGRADE(error, SVt_PV);
0510663f 342 Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
27da23d5
JH		 343 }
344 else
345 Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
346 }
347 }
348#else
349# ifdef HAS_GETPAGESIZE
350 PL_mmap_page_size = getpagesize();
351# else
352# if defined(I_SYS_PARAM) && defined(PAGESIZE)
353 PL_mmap_page_size = PAGESIZE; /* compiletime, bad */
354# endif
355# endif
356#endif
357 if (PL_mmap_page_size <= 0)
358 Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
359 (IV) PL_mmap_page_size);
360 }
361#endif /* HAS_MMAP */
362
363#if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
364 PL_timesbase.tms_utime = 0;
365 PL_timesbase.tms_stime = 0;
366 PL_timesbase.tms_cutime = 0;
367 PL_timesbase.tms_cstime = 0;
368#endif
369
7d113631
NC		 370 PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME));
371
a3e6e81e 372 PL_registered_mros = newHV();
9e169432
NC		 373 /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
374 HvMAX(PL_registered_mros) = 0;
a3e6e81e 375
7b8dd5f4
KW		 376 PL_XPosix_ptrs[_CC_ASCII] = _new_invlist_C_array(ASCII_invlist);
377 PL_XPosix_ptrs[_CC_ALPHANUMERIC] = _new_invlist_C_array(XPosixAlnum_invlist);
378 PL_XPosix_ptrs[_CC_ALPHA] = _new_invlist_C_array(XPosixAlpha_invlist);
379 PL_XPosix_ptrs[_CC_BLANK] = _new_invlist_C_array(XPosixBlank_invlist);
380 PL_XPosix_ptrs[_CC_CASED] = _new_invlist_C_array(Cased_invlist);
381 PL_XPosix_ptrs[_CC_CNTRL] = _new_invlist_C_array(XPosixCntrl_invlist);
382 PL_XPosix_ptrs[_CC_DIGIT] = _new_invlist_C_array(XPosixDigit_invlist);
383 PL_XPosix_ptrs[_CC_GRAPH] = _new_invlist_C_array(XPosixGraph_invlist);
384 PL_XPosix_ptrs[_CC_LOWER] = _new_invlist_C_array(XPosixLower_invlist);
385 PL_XPosix_ptrs[_CC_PRINT] = _new_invlist_C_array(XPosixPrint_invlist);
386 PL_XPosix_ptrs[_CC_PUNCT] = _new_invlist_C_array(XPosixPunct_invlist);
387 PL_XPosix_ptrs[_CC_SPACE] = _new_invlist_C_array(XPerlSpace_invlist);
7b8dd5f4
KW		 388 PL_XPosix_ptrs[_CC_UPPER] = _new_invlist_C_array(XPosixUpper_invlist);
389 PL_XPosix_ptrs[_CC_VERTSPACE] = _new_invlist_C_array(VertSpace_invlist);
390 PL_XPosix_ptrs[_CC_WORDCHAR] = _new_invlist_C_array(XPosixWord_invlist);
391 PL_XPosix_ptrs[_CC_XDIGIT] = _new_invlist_C_array(XPosixXDigit_invlist);
02f811dd 392 PL_GCB_invlist = _new_invlist_C_array(_Perl_GCB_invlist);
bf4268fa
KW		 393 PL_SB_invlist = _new_invlist_C_array(_Perl_SB_invlist);
394 PL_WB_invlist = _new_invlist_C_array(_Perl_WB_invlist);
7b8dd5f4 395
8990e307 396 ENTER;
79072805
LW		 397}
398
954c1994 399/*
62375a60
NIS		 400=for apidoc nothreadhook
401
402Stub that provides thread hook for perl_destruct when there are
403no threads.
404
405=cut
406*/
407
408int
4e9e3734 409Perl_nothreadhook(pTHX)
62375a60 410{
96a5add6 411 PERL_UNUSED_CONTEXT;
62375a60
NIS		 412 return 0;
413}
414
41e4abd8
NC		 415#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
416void
417Perl_dump_sv_child(pTHX_ SV *sv)
418{
419 ssize_t got;
bf357333
NC		 420 const int sock = PL_dumper_fd;
421 const int debug_fd = PerlIO_fileno(Perl_debug_log);
bf357333
NC		 422 union control_un control;
423 struct msghdr msg;
808ad2d0 424 struct iovec vec[2];
bf357333 425 struct cmsghdr *cmptr;
808ad2d0
NC		 426 int returned_errno;
427 unsigned char buffer[256];
41e4abd8 428
7918f24d
NC		 429 PERL_ARGS_ASSERT_DUMP_SV_CHILD;
430
bf357333 431 if(sock == -1 || debug_fd == -1)
41e4abd8
NC		 432 return;
433
434 PerlIO_flush(Perl_debug_log);
435
bf357333
NC		 436 /* All these shenanigans are to pass a file descriptor over to our child for
437 it to dump out to. We can't let it hold open the file descriptor when it
438 forks, as the file descriptor it will dump to can turn out to be one end
439 of pipe that some other process will wait on for EOF. (So as it would
b293a5f8 440 be open, the wait would be forever.) */
bf357333
NC		 441
442 msg.msg_control = control.control;
443 msg.msg_controllen = sizeof(control.control);
444 /* We're a connected socket so we don't need a destination */
445 msg.msg_name = NULL;
446 msg.msg_namelen = 0;
447 msg.msg_iov = vec;
808ad2d0 448 msg.msg_iovlen = 1;
bf357333
NC		 449
450 cmptr = CMSG_FIRSTHDR(&msg);
451 cmptr->cmsg_len = CMSG_LEN(sizeof(int));
452 cmptr->cmsg_level = SOL_SOCKET;
453 cmptr->cmsg_type = SCM_RIGHTS;
454 *((int *)CMSG_DATA(cmptr)) = 1;
455
456 vec[0].iov_base = (void*)&sv;
457 vec[0].iov_len = sizeof(sv);
458 got = sendmsg(sock, &msg, 0);
41e4abd8
NC		 459
460 if(got < 0) {
bf357333 461 perror("Debug leaking scalars parent sendmsg failed");
41e4abd8
NC		 462 abort();
463 }
bf357333
NC		 464 if(got < sizeof(sv)) {
465 perror("Debug leaking scalars parent short sendmsg");
41e4abd8
NC		 466 abort();
467 }
468
808ad2d0
NC		 469 /* Return protocol is
470 int: errno value
471 unsigned char: length of location string (0 for empty)
472 unsigned char*: string (not terminated)
473 */
474 vec[0].iov_base = (void*)&returned_errno;
475 vec[0].iov_len = sizeof(returned_errno);
476 vec[1].iov_base = buffer;
477 vec[1].iov_len = 1;
478
479 got = readv(sock, vec, 2);
41e4abd8
NC		 480
481 if(got < 0) {
482 perror("Debug leaking scalars parent read failed");
808ad2d0 483 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC		 484 abort();
485 }
808ad2d0 486 if(got < sizeof(returned_errno) + 1) {
41e4abd8 487 perror("Debug leaking scalars parent short read");
808ad2d0 488 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC		 489 abort();
490 }
491
808ad2d0
NC		 492 if (*buffer) {
493 got = read(sock, buffer + 1, *buffer);
494 if(got < 0) {
495 perror("Debug leaking scalars parent read 2 failed");
496 PerlIO_flush(PerlIO_stderr());
497 abort();
498 }
499
500 if(got < *buffer) {
501 perror("Debug leaking scalars parent short read 2");
502 PerlIO_flush(PerlIO_stderr());
503 abort();
504 }
505 }
506
507 if (returned_errno || *buffer) {
508 Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno"
509 " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1,
0c0d42ff 510 returned_errno, Strerror(returned_errno));
41e4abd8
NC		 511 }
512}
513#endif
514
62375a60 515/*
954c1994
GS		 516=for apidoc perl_destruct
517
518Shuts down a Perl interpreter. See L<perlembed>.
519
520=cut
521*/
522
31d77e54 523int
0cb96387 524perl_destruct(pTHXx)
79072805 525{
27da23d5 526 dVAR;
be2ea8ed 527 VOL signed char destruct_level; /* see possible values in intrpvar.h */
a0d0e21e 528 HV *hv;
2aa47728 529#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
2aa47728
NC		 530 pid_t child;
531#endif
9c0b6888 532 int i;
8990e307 533
7918f24d
NC		 534 PERL_ARGS_ASSERT_PERL_DESTRUCT;
535#ifndef MULTIPLICITY
ed6c66dd 536 PERL_UNUSED_ARG(my_perl);
7918f24d 537#endif
9d4ba2ae 538
3d22c4f0
GG		 539 assert(PL_scopestack_ix == 1);
540
7766f137
GS		 541 /* wait for all pseudo-forked children to finish */
542 PERL_WAIT_FOR_CHILDREN;
543
3280af22 544 destruct_level = PL_perl_destruct_level;
36e77d41 545#if defined(DEBUGGING) || defined(PERL_TRACK_MEMPOOL)
4633a7c4 546 {
9d4ba2ae
AL		 547 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
548 if (s) {
96e440d2
JH		 549 int i;
550 if (strEQ(s, "-1")) { /* Special case: modperl folklore. */
551 i = -1;
552 } else {
22ff3130
HS		 553 UV uv;
554 if (grok_atoUV(s, &uv, NULL) && uv <= INT_MAX)
555 i = (int)uv;
556 else
557 i = 0;
96e440d2 558 }
36e77d41
DD		 559#ifdef DEBUGGING
560 if (destruct_level < i) destruct_level = i;
561#endif
562#ifdef PERL_TRACK_MEMPOOL
f5199772
KW		 563 /* RT #114496, for perl_free */
564 PL_perl_destruct_level = i;
36e77d41 565#endif
5f05dabc 566 }
4633a7c4
LW		 567 }
568#endif
569
27da23d5 570 if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
f3faeb53
AB		 571 dJMPENV;
572 int x = 0;
573
574 JMPENV_PUSH(x);
1b6737cc 575 PERL_UNUSED_VAR(x);
9ebf26ad 576 if (PL_endav && !PL_minus_c) {
ca7b837b 577 PERL_SET_PHASE(PERL_PHASE_END);
f3faeb53 578 call_list(PL_scopestack_ix, PL_endav);
9ebf26ad 579 }
f3faeb53 580 JMPENV_POP;
26f423df 581 }
f3faeb53 582 LEAVE;
a0d0e21e 583 FREETMPS;
3d22c4f0 584 assert(PL_scopestack_ix == 0);
a0d0e21e 585
e00b64d4 586 /* Need to flush since END blocks can produce output */
f13a2bc0 587 my_fflush_all();
e00b64d4 588
75d476e2
S		 589#ifdef PERL_TRACE_OPS
590 /* If we traced all Perl OP usage, report and clean up */
591 PerlIO_printf(Perl_debug_log, "Trace of all OPs executed:\n");
592 for (i = 0; i <= OP_max; ++i) {
593 PerlIO_printf(Perl_debug_log, " %s: %"UVuf"\n", PL_op_name[i], PL_op_exec_cnt[i]);
594 PL_op_exec_cnt[i] = 0;
595 }
596 /* Utility slot for easily doing little tracing experiments in the runloop: */
597 if (PL_op_exec_cnt[OP_max+1] != 0)
598 PerlIO_printf(Perl_debug_log, " SPECIAL: %"UVuf"\n", PL_op_exec_cnt[OP_max+1]);
599 PerlIO_printf(Perl_debug_log, "\n");
600#endif
601
602
16c91539 603 if (PL_threadhook(aTHX)) {
62375a60 604 /* Threads hook has vetoed further cleanup */
c301d606 605 PL_veto_cleanup = TRUE;
37038d91 606 return STATUS_EXIT;
62375a60
NIS		 607 }
608
2aa47728
NC		 609#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
610 if (destruct_level != 0) {
611 /* Fork here to create a child. Our child's job is to preserve the
612 state of scalars prior to destruction, so that we can instruct it
613 to dump any scalars that we later find have leaked.
614 There's no subtlety in this code - it assumes POSIX, and it doesn't
615 fail gracefully */
616 int fd[2];
617
618 if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
619 perror("Debug leaking scalars socketpair failed");
620 abort();
621 }
622
623 child = fork();
624 if(child == -1) {
625 perror("Debug leaking scalars fork failed");
626 abort();
627 }
628 if (!child) {
629 /* We are the child */
3125a5a4
NC		 630 const int sock = fd[1];
631 const int debug_fd = PerlIO_fileno(Perl_debug_log);
632 int f;
808ad2d0
NC		 633 const char *where;
634 /* Our success message is an integer 0, and a char 0 */
b61433a9 635 static const char success[sizeof(int) + 1] = {0};
3125a5a4 636
2aa47728 637 close(fd[0]);
2aa47728 638
3125a5a4
NC		 639 /* We need to close all other file descriptors otherwise we end up
640 with interesting hangs, where the parent closes its end of a
641 pipe, and sits waiting for (another) child to terminate. Only
642 that child never terminates, because it never gets EOF, because
bf357333
NC		 643 we also have the far end of the pipe open. We even need to
644 close the debugging fd, because sometimes it happens to be one
645 end of a pipe, and a process is waiting on the other end for
646 EOF. Normally it would be closed at some point earlier in
647 destruction, but if we happen to cause the pipe to remain open,
648 EOF never occurs, and we get an infinite hang. Hence all the
649 games to pass in a file descriptor if it's actually needed. */
3125a5a4
NC		 650
651 f = sysconf(_SC_OPEN_MAX);
652 if(f < 0) {
808ad2d0
NC		 653 where = "sysconf failed";
654 goto abort;
3125a5a4
NC		 655 }
656 while (f--) {
657 if (f == sock)
658 continue;
3125a5a4
NC		 659 close(f);
660 }
661
2aa47728
NC		 662 while (1) {
663 SV *target;
bf357333
NC		 664 union control_un control;
665 struct msghdr msg;
666 struct iovec vec[1];
667 struct cmsghdr *cmptr;
668 ssize_t got;
669 int got_fd;
670
671 msg.msg_control = control.control;
672 msg.msg_controllen = sizeof(control.control);
673 /* We're a connected socket so we don't need a source */
674 msg.msg_name = NULL;
675 msg.msg_namelen = 0;
676 msg.msg_iov = vec;
c3caa5c3 677 msg.msg_iovlen = C_ARRAY_LENGTH(vec);
bf357333
NC		 678
679 vec[0].iov_base = (void*)&target;
680 vec[0].iov_len = sizeof(target);
681
682 got = recvmsg(sock, &msg, 0);
2aa47728
NC		 683
684 if(got == 0)
685 break;
686 if(got < 0) {
808ad2d0
NC		 687 where = "recv failed";
688 goto abort;
2aa47728
NC		 689 }
690 if(got < sizeof(target)) {
808ad2d0
NC		 691 where = "short recv";
692 goto abort;
2aa47728 693 }
bf357333 694
808ad2d0
NC		 695 if(!(cmptr = CMSG_FIRSTHDR(&msg))) {
696 where = "no cmsg";
697 goto abort;
698 }
699 if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) {
700 where = "wrong cmsg_len";
701 goto abort;
702 }
703 if(cmptr->cmsg_level != SOL_SOCKET) {
704 where = "wrong cmsg_level";
705 goto abort;
706 }
707 if(cmptr->cmsg_type != SCM_RIGHTS) {
708 where = "wrong cmsg_type";
709 goto abort;
710 }
bf357333
NC		 711
712 got_fd = *(int*)CMSG_DATA(cmptr);
713 /* For our last little bit of trickery, put the file descriptor
714 back into Perl_debug_log, as if we never actually closed it
715 */
808ad2d0
NC		 716 if(got_fd != debug_fd) {
717 if (dup2(got_fd, debug_fd) == -1) {
718 where = "dup2";
719 goto abort;
720 }
721 }
2aa47728 722 sv_dump(target);
bf357333 723
2aa47728
NC		 724 PerlIO_flush(Perl_debug_log);
725
808ad2d0 726 got = write(sock, &success, sizeof(success));
2aa47728
NC		 727
728 if(got < 0) {
808ad2d0
NC		 729 where = "write failed";
730 goto abort;
2aa47728 731 }
808ad2d0
NC		 732 if(got < sizeof(success)) {
733 where = "short write";
734 goto abort;
2aa47728
NC		 735 }
736 }
737 _exit(0);
808ad2d0
NC		 738 abort:
739 {
740 int send_errno = errno;
741 unsigned char length = (unsigned char) strlen(where);
742 struct iovec failure[3] = {
743 {(void*)&send_errno, sizeof(send_errno)},
744 {&length, 1},
745 {(void*)where, length}
746 };
747 int got = writev(sock, failure, 3);
748 /* Bad news travels fast. Faster than data. We'll get a SIGPIPE
749 in the parent if we try to read from the socketpair after the
750 child has exited, even if there was data to read.
751 So sleep a bit to give the parent a fighting chance of
752 reading the data. */
753 sleep(2);
754 _exit((got == -1) ? errno : 0);
755 }
bf357333 756 /* End of child. */
2aa47728 757 }
41e4abd8 758 PL_dumper_fd = fd[0];
2aa47728
NC		 759 close(fd[1]);
760 }
761#endif
762
ff0cee69 763 /* We must account for everything. */
764
765 /* Destroy the main CV and syntax tree */
37e77c23
FC		 766 /* Set PL_curcop now, because destroying ops can cause new SVs
767 to be generated in Perl_pad_swipe, and when running with
768 -DDEBUG_LEAKING_SCALARS they expect PL_curcop to point to a valid
769 op from which the filename structure member is copied. */
17fbfdf6 770 PL_curcop = &PL_compiling;
3280af22 771 if (PL_main_root) {
4e380990
DM		 772 /* ensure comppad/curpad to refer to main's pad */
773 if (CvPADLIST(PL_main_cv)) {
774 PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1);
325e1816 775 PL_comppad_name = PadlistNAMES(CvPADLIST(PL_main_cv));
4e380990 776 }
3280af22 777 op_free(PL_main_root);
5f66b61c 778 PL_main_root = NULL;
a0d0e21e 779 }
5f66b61c 780 PL_main_start = NULL;
aac9d523
DM		 781 /* note that PL_main_cv isn't usually actually freed at this point,
782 * due to the CvOUTSIDE refs from subs compiled within it. It will
783 * get freed once all the subs are freed in sv_clean_all(), for
784 * destruct_level > 0 */
3280af22 785 SvREFCNT_dec(PL_main_cv);
601f1833 786 PL_main_cv = NULL;
ca7b837b 787 PERL_SET_PHASE(PERL_PHASE_DESTRUCT);
ff0cee69 788
13621cfb
NIS		 789 /* Tell PerlIO we are about to tear things apart in case
790 we have layers which are using resources that should
791 be cleaned up now.
792 */
793
794 PerlIO_destruct(aTHX);
795
ddf23d4a
S		 796 /*
797 * Try to destruct global references. We do this first so that the
798 * destructors and destructees still exist. Some sv's might remain.
799 * Non-referenced objects are on their own.
800 */
801 sv_clean_objs();
8990e307 802
5cd24f17 803 /* unhook hooks which will soon be, or use, destroyed data */
3280af22 804 SvREFCNT_dec(PL_warnhook);
a0714e2c 805 PL_warnhook = NULL;
3280af22 806 SvREFCNT_dec(PL_diehook);
a0714e2c 807 PL_diehook = NULL;
5cd24f17 808
4b556e6c 809 /* call exit list functions */
3280af22 810 while (PL_exitlistlen-- > 0)
acfe0abc 811 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
4b556e6c 812
3280af22 813 Safefree(PL_exitlist);
4b556e6c 814
1c4916e5
CB		 815 PL_exitlist = NULL;
816 PL_exitlistlen = 0;
817
a3e6e81e
NC		 818 SvREFCNT_dec(PL_registered_mros);
819
551a8b83 820 /* jettison our possibly duplicated environment */
4b647fb0
DM		 821 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
822 * so we certainly shouldn't free it here
823 */
2f42fcb0 824#ifndef PERL_MICRO
4b647fb0 825#if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
50acdf95 826 if (environ != PL_origenviron && !PL_use_safe_putenv
4efc5df6
GS		 827#ifdef USE_ITHREADS
828 /* only main thread can free environ[0] contents */
829 && PL_curinterp == aTHX
830#endif
831 )
832 {
551a8b83
JH		 833 I32 i;
834
835 for (i = 0; environ[i]; i++)
4b420006 836 safesysfree(environ[i]);
0631ea03 837
4b420006
JH		 838 /* Must use safesysfree() when working with environ. */
839 safesysfree(environ);
551a8b83
JH		 840
841 environ = PL_origenviron;
842 }
843#endif
2f42fcb0 844#endif /* !PERL_MICRO */
551a8b83 845
30985c42
JH		 846 if (destruct_level == 0) {
847
848 DEBUG_P(debprofdump());
849
850#if defined(PERLIO_LAYERS)
851 /* No more IO - including error messages ! */
852 PerlIO_cleanup(aTHX);
853#endif
854
855 CopFILE_free(&PL_compiling);
30985c42
JH		 856
857 /* The exit() function will do everything that needs doing. */
858 return STATUS_EXIT;
859 }
860
9fa9f06b
KW		 861 /* Below, do clean up for when PERL_DESTRUCT_LEVEL is not 0 */
862
5f8cb046
DM		 863#ifdef USE_ITHREADS
864 /* the syntax tree is shared between clones
865 * so op_free(PL_main_root) only ReREFCNT_dec's
866 * REGEXPs in the parent interpreter
867 * we need to manually ReREFCNT_dec for the clones
868 */
0547a729
DM		 869 {
870 I32 i = AvFILLp(PL_regex_padav);
871 SV **ary = AvARRAY(PL_regex_padav);
872
873 for (; i; i--) {
874 SvREFCNT_dec(ary[i]);
875 ary[i] = &PL_sv_undef;
876 }
877 }
5f8cb046
DM		 878#endif
879
0547a729 880
ad64d0ec 881 SvREFCNT_dec(MUTABLE_SV(PL_stashcache));
081fc587
AB		 882 PL_stashcache = NULL;
883
5f05dabc 884 /* loosen bonds of global variables */
885
2f9285f8
DM		 886 /* XXX can PL_parser still be non-null here? */
887 if(PL_parser && PL_parser->rsfp) {
888 (void)PerlIO_close(PL_parser->rsfp);
889 PL_parser->rsfp = NULL;
8ebc5c01 890 }
891
84386e14
RGS		 892 if (PL_minus_F) {
893 Safefree(PL_splitstr);
894 PL_splitstr = NULL;
895 }
896
8ebc5c01 897 /* switches */
3280af22
NIS		 898 PL_minus_n = FALSE;
899 PL_minus_p = FALSE;
900 PL_minus_l = FALSE;
901 PL_minus_a = FALSE;
902 PL_minus_F = FALSE;
903 PL_doswitches = FALSE;
599cee73 904 PL_dowarn = G_WARN_OFF;
1a904fc8 905#ifdef PERL_SAWAMPERSAND
d3b97530 906 PL_sawampersand = 0; /* must save all match strings */
1a904fc8 907#endif
3280af22
NIS		 908 PL_unsafe = FALSE;
909
910 Safefree(PL_inplace);
bd61b366 911 PL_inplace = NULL;
a7cb1f99 912 SvREFCNT_dec(PL_patchlevel);
3280af22
NIS		 913
914 if (PL_e_script) {
915 SvREFCNT_dec(PL_e_script);
a0714e2c 916 PL_e_script = NULL;
8ebc5c01 917 }
918
bf9cdc68
RG		 919 PL_perldb = 0;
920
8ebc5c01 921 /* magical thingies */
922
e23d9e2f
CS		 923 SvREFCNT_dec(PL_ofsgv); /* *, */
924 PL_ofsgv = NULL;
5f05dabc 925
7889fe52 926 SvREFCNT_dec(PL_ors_sv); /* $\ */
a0714e2c 927 PL_ors_sv = NULL;
8ebc5c01 928
3280af22 929 SvREFCNT_dec(PL_rs); /* $/ */
a0714e2c 930 PL_rs = NULL;
dc92893f 931
d33b2eba 932 Safefree(PL_osname); /* $^O */
bd61b366 933 PL_osname = NULL;
5f05dabc 934
3280af22 935 SvREFCNT_dec(PL_statname);
a0714e2c
SS		 936 PL_statname = NULL;
937 PL_statgv = NULL;
5f05dabc 938
8ebc5c01 939 /* defgv, aka *_ should be taken care of elsewhere */
940
7d5ea4e7
GS		 941 /* float buffer */
942 Safefree(PL_efloatbuf);
bd61b366 943 PL_efloatbuf = NULL;
7d5ea4e7
GS		 944 PL_efloatsize = 0;
945
8ebc5c01 946 /* startup and shutdown function lists */
3280af22 947 SvREFCNT_dec(PL_beginav);
5a837c8f 948 SvREFCNT_dec(PL_beginav_save);
3280af22 949 SvREFCNT_dec(PL_endav);
7d30b5c4 950 SvREFCNT_dec(PL_checkav);
ece599bd 951 SvREFCNT_dec(PL_checkav_save);
3c10abe3
AG		 952 SvREFCNT_dec(PL_unitcheckav);
953 SvREFCNT_dec(PL_unitcheckav_save);
3280af22 954 SvREFCNT_dec(PL_initav);
7d49f689
NC		 955 PL_beginav = NULL;
956 PL_beginav_save = NULL;
957 PL_endav = NULL;
958 PL_checkav = NULL;
959 PL_checkav_save = NULL;
3c10abe3
AG		 960 PL_unitcheckav = NULL;
961 PL_unitcheckav_save = NULL;
7d49f689 962 PL_initav = NULL;
5618dfe8 963
8ebc5c01 964 /* shortcuts just get cleared */
a0714e2c
SS		 965 PL_hintgv = NULL;
966 PL_errgv = NULL;
a0714e2c
SS		 967 PL_argvoutgv = NULL;
968 PL_stdingv = NULL;
969 PL_stderrgv = NULL;
970 PL_last_in_gv = NULL;
a0714e2c
SS		 971 PL_DBsingle = NULL;
972 PL_DBtrace = NULL;
973 PL_DBsignal = NULL;
a6d69523
TC		 974 PL_DBsingle_iv = 0;
975 PL_DBtrace_iv = 0;
976 PL_DBsignal_iv = 0;
601f1833 977 PL_DBcv = NULL;
7d49f689 978 PL_dbargs = NULL;
5c284bb0 979 PL_debstash = NULL;
8ebc5c01 980
cf93a474 981 SvREFCNT_dec(PL_envgv);
f03015cd 982 SvREFCNT_dec(PL_incgv);
722fa0e9 983 SvREFCNT_dec(PL_argvgv);
475b1e90 984 SvREFCNT_dec(PL_replgv);
8cece913
FC		 985 SvREFCNT_dec(PL_DBgv);
986 SvREFCNT_dec(PL_DBline);
987 SvREFCNT_dec(PL_DBsub);
cf93a474 988 PL_envgv = NULL;
f03015cd 989 PL_incgv = NULL;
722fa0e9 990 PL_argvgv = NULL;
475b1e90 991 PL_replgv = NULL;
8cece913
FC		 992 PL_DBgv = NULL;
993 PL_DBline = NULL;
994 PL_DBsub = NULL;
995
7a1c5554 996 SvREFCNT_dec(PL_argvout_stack);
7d49f689 997 PL_argvout_stack = NULL;
8ebc5c01 998
5c831c24 999 SvREFCNT_dec(PL_modglobal);
5c284bb0 1000 PL_modglobal = NULL;
5c831c24 1001 SvREFCNT_dec(PL_preambleav);
7d49f689 1002 PL_preambleav = NULL;
5c831c24 1003 SvREFCNT_dec(PL_subname);
a0714e2c 1004 PL_subname = NULL;
ca0c25f6 1005#ifdef PERL_USES_PL_PIDSTATUS
5c831c24 1006 SvREFCNT_dec(PL_pidstatus);
5c284bb0 1007 PL_pidstatus = NULL;
ca0c25f6 1008#endif
5c831c24 1009 SvREFCNT_dec(PL_toptarget);
a0714e2c 1010 PL_toptarget = NULL;
5c831c24 1011 SvREFCNT_dec(PL_bodytarget);
a0714e2c
SS		 1012 PL_bodytarget = NULL;
1013 PL_formtarget = NULL;
5c831c24 1014
d33b2eba 1015 /* free locale stuff */
b9582b6a 1016#ifdef USE_LOCALE_COLLATE
d33b2eba 1017 Safefree(PL_collation_name);
bd61b366 1018 PL_collation_name = NULL;
b9582b6a 1019#endif
d33b2eba 1020
b9582b6a 1021#ifdef USE_LOCALE_NUMERIC
d33b2eba 1022 Safefree(PL_numeric_name);
bd61b366 1023 PL_numeric_name = NULL;
a453c169 1024 SvREFCNT_dec(PL_numeric_radix_sv);
a0714e2c 1025 PL_numeric_radix_sv = NULL;
b9582b6a 1026#endif
d33b2eba 1027
9c0b6888
KW		 1028 /* clear character classes */
1029 for (i = 0; i < POSIX_SWASH_COUNT; i++) {
1030 SvREFCNT_dec(PL_utf8_swash_ptrs[i]);
1031 PL_utf8_swash_ptrs[i] = NULL;
1032 }
5c831c24
GS		 1033 SvREFCNT_dec(PL_utf8_mark);
1034 SvREFCNT_dec(PL_utf8_toupper);
4dbdbdc2 1035 SvREFCNT_dec(PL_utf8_totitle);
5c831c24 1036 SvREFCNT_dec(PL_utf8_tolower);
b4e400f9 1037 SvREFCNT_dec(PL_utf8_tofold);
82686b01
JH		 1038 SvREFCNT_dec(PL_utf8_idstart);
1039 SvREFCNT_dec(PL_utf8_idcont);
c60f4405 1040 SvREFCNT_dec(PL_utf8_foldable);
2726813d 1041 SvREFCNT_dec(PL_utf8_foldclosures);
9fa9f06b 1042 SvREFCNT_dec(PL_AboveLatin1);
e0a1ff7a 1043 SvREFCNT_dec(PL_InBitmap);
9fa9f06b
KW		 1044 SvREFCNT_dec(PL_UpperLatin1);
1045 SvREFCNT_dec(PL_Latin1);
1046 SvREFCNT_dec(PL_NonL1NonFinalFold);
1047 SvREFCNT_dec(PL_HasMultiCharFold);
5b7de470 1048#ifdef USE_LOCALE_CTYPE
780fcc9f 1049 SvREFCNT_dec(PL_warn_locale);
5b7de470 1050#endif
a0714e2c
SS		 1051 PL_utf8_mark = NULL;
1052 PL_utf8_toupper = NULL;
1053 PL_utf8_totitle = NULL;
1054 PL_utf8_tolower = NULL;
1055 PL_utf8_tofold = NULL;
1056 PL_utf8_idstart = NULL;
1057 PL_utf8_idcont = NULL;
2726813d 1058 PL_utf8_foldclosures = NULL;
9fa9f06b 1059 PL_AboveLatin1 = NULL;
e0a1ff7a 1060 PL_InBitmap = NULL;
9fa9f06b 1061 PL_HasMultiCharFold = NULL;
5b7de470 1062#ifdef USE_LOCALE_CTYPE
780fcc9f 1063 PL_warn_locale = NULL;
5b7de470 1064#endif
9fa9f06b
KW		 1065 PL_Latin1 = NULL;
1066 PL_NonL1NonFinalFold = NULL;
1067 PL_UpperLatin1 = NULL;
86f72d56 1068 for (i = 0; i < POSIX_CC_COUNT; i++) {
cac6e0ca
KW		 1069 SvREFCNT_dec(PL_XPosix_ptrs[i]);
1070 PL_XPosix_ptrs[i] = NULL;
86f72d56 1071 }
64935bc6 1072 PL_GCB_invlist = NULL;
06ae2722 1073 PL_SB_invlist = NULL;
ae3bb8ea 1074 PL_WB_invlist = NULL;
5c831c24 1075
971a9dd3 1076 if (!specialWARN(PL_compiling.cop_warnings))
72dc9ed5 1077 PerlMemShared_free(PL_compiling.cop_warnings);
a0714e2c 1078 PL_compiling.cop_warnings = NULL;
20439bc7
Z		 1079 cophh_free(CopHINTHASH_get(&PL_compiling));
1080 CopHINTHASH_set(&PL_compiling, cophh_new_empty());
05ec9bb3 1081 CopFILE_free(&PL_compiling);
5c831c24 1082
a0d0e21e 1083 /* Prepare to destruct main symbol table. */
5f05dabc 1084
3280af22 1085 hv = PL_defstash;
ca556bcd
DM		 1086 /* break ref loop *:: <=> %:: */
1087 (void)hv_delete(hv, "main::", 6, G_DISCARD);
3280af22 1088 PL_defstash = 0;
a0d0e21e 1089 SvREFCNT_dec(hv);
5c831c24 1090 SvREFCNT_dec(PL_curstname);
a0714e2c 1091 PL_curstname = NULL;
a0d0e21e 1092
5a844595
GS		 1093 /* clear queued errors */
1094 SvREFCNT_dec(PL_errors);
a0714e2c 1095 PL_errors = NULL;
5a844595 1096
dd69841b
BB		 1097 SvREFCNT_dec(PL_isarev);
1098
a0d0e21e 1099 FREETMPS;
9b387841 1100 if (destruct_level >= 2) {
3280af22 1101 if (PL_scopestack_ix != 0)
9b387841
NC		 1102 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1103 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
1104 (long)PL_scopestack_ix);
3280af22 1105 if (PL_savestack_ix != 0)
9b387841
NC		 1106 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1107 "Unbalanced saves: %ld more saves than restores\n",
1108 (long)PL_savestack_ix);
3280af22 1109 if (PL_tmps_floor != -1)
9b387841
NC		 1110 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
1111 (long)PL_tmps_floor + 1);
a0d0e21e 1112 if (cxstack_ix != -1)
9b387841
NC		 1113 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
1114 (long)cxstack_ix + 1);
a0d0e21e 1115 }
8990e307 1116
0547a729
DM		 1117#ifdef USE_ITHREADS
1118 SvREFCNT_dec(PL_regex_padav);
1119 PL_regex_padav = NULL;
1120 PL_regex_pad = NULL;
1121#endif
1122
776df701 1123#ifdef PERL_IMPLICIT_CONTEXT
57bb2458
JH		 1124 /* the entries in this list are allocated via SV PVX's, so get freed
1125 * in sv_clean_all */
1126 Safefree(PL_my_cxt_list);
776df701 1127#endif
57bb2458 1128
8990e307 1129 /* Now absolutely destruct everything, somehow or other, loops or no. */
5226ed68
JH		 1130
1131 /* the 2 is for PL_fdpid and PL_strtab */
d17ea597 1132 while (sv_clean_all() > 2)
5226ed68
JH		 1133 ;
1134
23083432
FC		 1135#ifdef USE_ITHREADS
1136 Safefree(PL_stashpad); /* must come after sv_clean_all */
1137#endif
1138
d4777f27
GS		 1139 AvREAL_off(PL_fdpid); /* no surviving entries */
1140 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
7d49f689 1141 PL_fdpid = NULL;
d33b2eba 1142
6c644e78
GS		 1143#ifdef HAVE_INTERP_INTERN
1144 sys_intern_clear();
1145#endif
1146
a38ab475
RZ		 1147 /* constant strings */
1148 for (i = 0; i < SV_CONSTS_COUNT; i++) {
1149 SvREFCNT_dec(PL_sv_consts[i]);
1150 PL_sv_consts[i] = NULL;
1151 }
1152
6e72f9df 1153 /* Destruct the global string table. */
1154 {
1155 /* Yell and reset the HeVAL() slots that are still holding refcounts,
1156 * so that sv_free() won't fail on them.
80459961
NC		 1157 * Now that the global string table is using a single hunk of memory
1158 * for both HE and HEK, we either need to explicitly unshare it the
1159 * correct way, or actually free things here.
6e72f9df 1160 */
80459961
NC		 1161 I32 riter = 0;
1162 const I32 max = HvMAX(PL_strtab);
c4420975 1163 HE * const * const array = HvARRAY(PL_strtab);
80459961
NC		 1164 HE *hent = array[0];
1165
6e72f9df 1166 for (;;) {
0453d815 1167 if (hent && ckWARN_d(WARN_INTERNAL)) {
44f8325f 1168 HE * const next = HeNEXT(hent);
9014280d 1169 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
44f8325f 1170 "Unbalanced string table refcount: (%ld) for \"%s\"",
de616631 1171 (long)hent->he_valu.hent_refcount, HeKEY(hent));
80459961
NC		 1172 Safefree(hent);
1173 hent = next;
6e72f9df 1174 }
1175 if (!hent) {
1176 if (++riter > max)
1177 break;
1178 hent = array[riter];
1179 }
1180 }
80459961
NC		 1181
1182 Safefree(array);
1183 HvARRAY(PL_strtab) = 0;
1184 HvTOTALKEYS(PL_strtab) = 0;
6e72f9df 1185 }
3280af22 1186 SvREFCNT_dec(PL_strtab);
6e72f9df 1187
e652bb2f 1188#ifdef USE_ITHREADS
c21d1a0f 1189 /* free the pointer tables used for cloning */
a0739874 1190 ptr_table_free(PL_ptr_table);
bf9cdc68 1191 PL_ptr_table = (PTR_TBL_t*)NULL;
53186e96 1192#endif
a0739874 1193
d33b2eba
GS		 1194 /* free special SVs */
1195
1196 SvREFCNT(&PL_sv_yes) = 0;
1197 sv_clear(&PL_sv_yes);
1198 SvANY(&PL_sv_yes) = NULL;
4c5e2b0d 1199 SvFLAGS(&PL_sv_yes) = 0;
d33b2eba
GS		 1200
1201 SvREFCNT(&PL_sv_no) = 0;
1202 sv_clear(&PL_sv_no);
1203 SvANY(&PL_sv_no) = NULL;
4c5e2b0d 1204 SvFLAGS(&PL_sv_no) = 0;
01724ea0 1205
9f375a43
DM		 1206 {
1207 int i;
1208 for (i=0; i<=2; i++) {
1209 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
1210 sv_clear(PERL_DEBUG_PAD(i));
1211 SvANY(PERL_DEBUG_PAD(i)) = NULL;
1212 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
1213 }
1214 }
1215
0453d815 1216 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
9014280d 1217 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
6e72f9df 1218
eba0f806
DM		 1219#ifdef DEBUG_LEAKING_SCALARS
1220 if (PL_sv_count != 0) {
1221 SV* sva;
1222 SV* sv;
eb578fdb 1223 SV* svend;
eba0f806 1224
ad64d0ec 1225 for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
eba0f806
DM		 1226 svend = &sva[SvREFCNT(sva)];
1227 for (sv = sva + 1; sv < svend; ++sv) {
e4787c0c 1228 if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
a548cda8 1229 PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
61b61456 1230 " flags=0x%"UVxf
fd0854ff 1231 " refcnt=%"UVuf pTHX__FORMAT "\n"
cd676548
DM		 1232 "\tallocated at %s:%d %s %s (parent 0x%"UVxf");"
1233 "serial %"UVuf"\n",
574b8821
NC		 1234 (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
1235 pTHX__VALUE,
fd0854ff
DM		 1236 sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1237 sv->sv_debug_line,
1238 sv->sv_debug_inpad ? "for" : "by",
1239 sv->sv_debug_optype ?
1240 PL_op_name[sv->sv_debug_optype]: "(none)",
cd676548 1241 PTR2UV(sv->sv_debug_parent),
cbe56f1d 1242 sv->sv_debug_serial
fd0854ff 1243 );
2aa47728 1244#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
41e4abd8 1245 Perl_dump_sv_child(aTHX_ sv);
2aa47728 1246#endif
eba0f806
DM		 1247 }
1248 }
1249 }
1250 }
2aa47728
NC		 1251#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
1252 {
1253 int status;
1254 fd_set rset;
1255 /* Wait for up to 4 seconds for child to terminate.
1256 This seems to be the least effort way of timing out on reaping
1257 its exit status. */
1258 struct timeval waitfor = {4, 0};
41e4abd8 1259 int sock = PL_dumper_fd;
2aa47728
NC		 1260
1261 shutdown(sock, 1);
1262 FD_ZERO(&rset);
1263 FD_SET(sock, &rset);
1264 select(sock + 1, &rset, NULL, NULL, &waitfor);
1265 waitpid(child, &status, WNOHANG);
1266 close(sock);
1267 }
1268#endif
eba0f806 1269#endif
77abb4c6
NC		 1270#ifdef DEBUG_LEAKING_SCALARS_ABORT
1271 if (PL_sv_count)
1272 abort();
1273#endif
bf9cdc68 1274 PL_sv_count = 0;
eba0f806 1275
56a2bab7 1276#if defined(PERLIO_LAYERS)
3a1ee7e8
NIS		 1277 /* No more IO - including error messages ! */
1278 PerlIO_cleanup(aTHX);
1279#endif
1280
9f4bd222 1281 /* sv_undef needs to stay immortal until after PerlIO_cleanup
a0714e2c 1282 as currently layers use it rather than NULL as a marker
9f4bd222
NIS		 1283 for no arg - and will try and SvREFCNT_dec it.
1284 */
1285 SvREFCNT(&PL_sv_undef) = 0;
1286 SvREADONLY_off(&PL_sv_undef);
1287
3280af22 1288 Safefree(PL_origfilename);
bd61b366 1289 PL_origfilename = NULL;
43c5f42d 1290 Safefree(PL_reg_curpm);
dd28f7bb 1291 free_tied_hv_pool();
3280af22 1292 Safefree(PL_op_mask);
cf36064f 1293 Safefree(PL_psig_name);
bf9cdc68 1294 PL_psig_name = (SV**)NULL;
d525a7b2 1295 PL_psig_ptr = (SV**)NULL;
31c91b43
LR		 1296 {
1297 /* We need to NULL PL_psig_pend first, so that
1298 signal handlers know not to use it */
1299 int *psig_save = PL_psig_pend;
1300 PL_psig_pend = (int*)NULL;
1301 Safefree(psig_save);
1302 }
6e72f9df 1303 nuke_stacks();
284167a5
S		 1304 TAINTING_set(FALSE);
1305 TAINT_WARN_set(FALSE);
3280af22 1306 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
ac27b0f5 1307
a0d0e21e 1308 DEBUG_P(debprofdump());
d33b2eba 1309
b173165c
FC		 1310 PL_debug = 0;
1311
e5dd39fc 1312#ifdef USE_REENTRANT_API
10bc17b6 1313 Perl_reentrant_free(aTHX);
e5dd39fc
AB		 1314#endif
1315
a24da70b
NC		 1316 /* These all point to HVs that are about to be blown away.
1317 Code in core and on CPAN assumes that if the interpreter is re-started
1318 that they will be cleanly NULL or pointing to a valid HV. */
1319 PL_custom_op_names = NULL;
1320 PL_custom_op_descs = NULL;
1321 PL_custom_ops = NULL;
1322
612f20c3
GS		 1323 sv_free_arenas();
1324
5d9a96ca
DM		 1325 while (PL_regmatch_slab) {
1326 regmatch_slab *s = PL_regmatch_slab;
1327 PL_regmatch_slab = PL_regmatch_slab->next;
1328 Safefree(s);
1329 }
1330
fc36a67e 1331 /* As the absolutely last thing, free the non-arena SV for mess() */
1332
3280af22 1333 if (PL_mess_sv) {
f350b448
NC		 1334 /* we know that type == SVt_PVMG */
1335
9c63abab 1336 /* it could have accumulated taint magic */
f350b448
NC		 1337 MAGIC* mg;
1338 MAGIC* moremagic;
1339 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
1340 moremagic = mg->mg_moremagic;
1341 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
1342 && mg->mg_len >= 0)
1343 Safefree(mg->mg_ptr);
1344 Safefree(mg);
9c63abab 1345 }
f350b448 1346
fc36a67e 1347 /* we know that type >= SVt_PV */
8bd4d4c5 1348 SvPV_free(PL_mess_sv);
3280af22
NIS		 1349 Safefree(SvANY(PL_mess_sv));
1350 Safefree(PL_mess_sv);
a0714e2c 1351 PL_mess_sv = NULL;
fc36a67e 1352 }
37038d91 1353 return STATUS_EXIT;
79072805
LW		 1354}
1355
954c1994
GS		 1356/*
1357=for apidoc perl_free
1358
1359Releases a Perl interpreter. See L<perlembed>.
1360
1361=cut
1362*/
1363
79072805 1364void
0cb96387 1365perl_free(pTHXx)
79072805 1366{
5174512c
NC		 1367 dVAR;
1368
7918f24d
NC		 1369 PERL_ARGS_ASSERT_PERL_FREE;
1370
c301d606
DM		 1371 if (PL_veto_cleanup)
1372 return;
1373
7cb608b5 1374#ifdef PERL_TRACK_MEMPOOL
55ef9aae
MHM		 1375 {
1376 /*
1377 * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero
1378 * value as we're probably hunting memory leaks then
1379 */
36e77d41 1380 if (PL_perl_destruct_level == 0) {
4fd0a9b8 1381 const U32 old_debug = PL_debug;
55ef9aae
MHM		 1382 /* Emulate the PerlHost behaviour of free()ing all memory allocated in this
1383 thread at thread exit. */
4fd0a9b8
NC		 1384 if (DEBUG_m_TEST) {
1385 PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
1386 "free this thread's memory\n");
1387 PL_debug &= ~ DEBUG_m_FLAG;
1388 }
6edcbed6
DD		 1389 while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)){
1390 char * next = (char *)(aTHXx->Imemory_debug_header.next);
1391 Malloc_t ptr = PERL_MEMORY_DEBUG_HEADER_SIZE + next;
1392 safesysfree(ptr);
1393 }
4fd0a9b8 1394 PL_debug = old_debug;
55ef9aae
MHM		 1395 }
1396 }
7cb608b5
NC		 1397#endif
1398
acfe0abc 1399#if defined(WIN32) || defined(NETWARE)
ce3e5b80 1400# if defined(PERL_IMPLICIT_SYS)
b36c9a52 1401 {
acfe0abc 1402# ifdef NETWARE
7af12a34 1403 void *host = nw_internal_host;
7af12a34 1404 PerlMem_free(aTHXx);
7af12a34 1405 nw_delete_internal_host(host);
acfe0abc 1406# else
bdb50480
NC		 1407 void *host = w32_internal_host;
1408 PerlMem_free(aTHXx);
7af12a34 1409 win32_delete_internal_host(host);
acfe0abc 1410# endif
7af12a34 1411 }
1c0ca838
GS		 1412# else
1413 PerlMem_free(aTHXx);
1414# endif
acfe0abc
GS		 1415#else
1416 PerlMem_free(aTHXx);
76e3520e 1417#endif
79072805
LW		 1418}
1419
b7f7fff6 1420#if defined(USE_ITHREADS)
aebd1ac7
GA		 1421/* provide destructors to clean up the thread key when libperl is unloaded */
1422#ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */
1423
826955bd 1424#if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__)
aebd1ac7 1425#pragma fini "perl_fini"
666ad1ec
GA		 1426#elif defined(__sun) && !defined(__GNUC__)
1427#pragma fini (perl_fini)
aebd1ac7
GA		 1428#endif
1429
0dbb1585
AL		 1430static void
1431#if defined(__GNUC__)
1432__attribute__((destructor))
aebd1ac7 1433#endif
de009b76 1434perl_fini(void)
aebd1ac7 1435{
27da23d5 1436 dVAR;
5c64bffd
NC		 1437 if (
1438#ifdef PERL_GLOBAL_STRUCT_PRIVATE
1439 my_vars &&
1440#endif
1441 PL_curinterp && !PL_veto_cleanup)
aebd1ac7
GA		 1442 FREE_THREAD_KEY;
1443}
1444
1445#endif /* WIN32 */
1446#endif /* THREADS */
1447
4b556e6c 1448void
864dbfa3 1449Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
4b556e6c 1450{
3280af22
NIS		 1451 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
1452 PL_exitlist[PL_exitlistlen].fn = fn;
1453 PL_exitlist[PL_exitlistlen].ptr = ptr;
1454 ++PL_exitlistlen;
4b556e6c
JD		 1455}
1456
954c1994
GS		 1457/*
1458=for apidoc perl_parse
1459
1460Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
1461
1462=cut
1463*/
1464
03d9f026
FC		 1465#define SET_CURSTASH(newstash) \
1466 if (PL_curstash != newstash) { \
1467 SvREFCNT_dec(PL_curstash); \
1468 PL_curstash = (HV *)SvREFCNT_inc(newstash); \
1469 }
1470
79072805 1471int
0cb96387 1472perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
8d063cd8 1473{
27da23d5 1474 dVAR;
6224f72b 1475 I32 oldscope;
6224f72b 1476 int ret;
db36c5a1 1477 dJMPENV;
8d063cd8 1478
7918f24d
NC		 1479 PERL_ARGS_ASSERT_PERL_PARSE;
1480#ifndef MULTIPLICITY
ed6c66dd 1481 PERL_UNUSED_ARG(my_perl);
7918f24d 1482#endif
7dc86639 1483#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) || defined(USE_HASH_SEED_DEBUG)
b0891165 1484 {
7dc86639
YO		 1485 const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
1486
22ff3130 1487 if (s && strEQ(s, "1")) {
7dc86639
YO		 1488 unsigned char *seed= PERL_HASH_SEED;
1489 unsigned char *seed_end= PERL_HASH_SEED + PERL_HASH_SEED_BYTES;
1490 PerlIO_printf(Perl_debug_log, "HASH_FUNCTION = %s HASH_SEED = 0x", PERL_HASH_FUNC);
1491 while (seed < seed_end) {
1492 PerlIO_printf(Perl_debug_log, "%02x", *seed++);
1493 }
6a5b4183
YO		 1494#ifdef PERL_HASH_RANDOMIZE_KEYS
1495 PerlIO_printf(Perl_debug_log, " PERTURB_KEYS = %d (%s)",
1496 PL_HASH_RAND_BITS_ENABLED,
1497 PL_HASH_RAND_BITS_ENABLED == 0 ? "NO" : PL_HASH_RAND_BITS_ENABLED == 1 ? "RANDOM" : "DETERMINISTIC");
1498#endif
7dc86639
YO		 1499 PerlIO_printf(Perl_debug_log, "\n");
1500 }
b0891165
JH		 1501 }
1502#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3280af22 1503 PL_origargc = argc;
e2975953 1504 PL_origargv = argv;
a0d0e21e 1505
a2722ac9
GA		 1506 if (PL_origalen != 0) {
1507 PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */
1508 }
1509 else {
3cb9023d
JH		 1510 /* Set PL_origalen be the sum of the contiguous argv[]
1511 * elements plus the size of the env in case that it is
e9137a8e 1512 * contiguous with the argv[]. This is used in mg.c:Perl_magic_set()
3cb9023d
JH		 1513 * as the maximum modifiable length of $0. In the worst case
1514 * the area we are able to modify is limited to the size of
43c32782 1515 * the original argv[0]. (See below for 'contiguous', though.)
3cb9023d 1516 * --jhi */
e1ec3a88 1517 const char *s = NULL;
54bfe034 1518 int i;
b7249aaf 1519 const UV mask = ~(UV)(PTRSIZE-1);
43c32782 1520 /* Do the mask check only if the args seem like aligned. */
1b6737cc 1521 const UV aligned =
43c32782
JH		 1522 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
1523
1524 /* See if all the arguments are contiguous in memory. Note
1525 * that 'contiguous' is a loose term because some platforms
1526 * align the argv[] and the envp[]. If the arguments look
1527 * like non-aligned, assume that they are 'strictly' or
1528 * 'traditionally' contiguous. If the arguments look like
1529 * aligned, we just check that they are within aligned
1530 * PTRSIZE bytes. As long as no system has something bizarre
1531 * like the argv[] interleaved with some other data, we are
1532 * fine. (Did I just evoke Murphy's Law?) --jhi */
c8941eeb
JH		 1533 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) {
1534 while (*s) s++;
1535 for (i = 1; i < PL_origargc; i++) {
1536 if ((PL_origargv[i] == s + 1
43c32782 1537#ifdef OS2
c8941eeb 1538 || PL_origargv[i] == s + 2
43c32782 1539#endif
c8941eeb
JH		 1540 )
1541 ||
1542 (aligned &&
1543 (PL_origargv[i] > s &&
1544 PL_origargv[i] <=
1545 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1546 )
1547 {
1548 s = PL_origargv[i];
1549 while (*s) s++;
1550 }
1551 else
1552 break;
54bfe034 1553 }
54bfe034 1554 }
a4a109c2
JD		 1555
1556#ifndef PERL_USE_SAFE_PUTENV
3cb9023d 1557 /* Can we grab env area too to be used as the area for $0? */
a4a109c2 1558 if (s && PL_origenviron && !PL_use_safe_putenv) {
9d419b5f 1559 if ((PL_origenviron[0] == s + 1)
43c32782
JH		 1560 ||
1561 (aligned &&
1562 (PL_origenviron[0] > s &&
1563 PL_origenviron[0] <=
1564 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1565 )
1566 {
9d419b5f 1567#ifndef OS2 /* ENVIRON is read by the kernel too. */
43c32782
JH		 1568 s = PL_origenviron[0];
1569 while (*s) s++;
1570#endif
bd61b366 1571 my_setenv("NoNe SuCh", NULL);
43c32782
JH		 1572 /* Force copy of environment. */
1573 for (i = 1; PL_origenviron[i]; i++) {
1574 if (PL_origenviron[i] == s + 1
1575 ||
1576 (aligned &&
1577 (PL_origenviron[i] > s &&
1578 PL_origenviron[i] <=
1579 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1580 )
1581 {
1582 s = PL_origenviron[i];
1583 while (*s) s++;
1584 }
1585 else
1586 break;
54bfe034 1587 }
43c32782 1588 }
54bfe034 1589 }
a4a109c2
JD		 1590#endif /* !defined(PERL_USE_SAFE_PUTENV) */
1591
2d2af554 1592 PL_origalen = s ? s - PL_origargv[0] + 1 : 0;
54bfe034
JH		 1593 }
1594
3280af22 1595 if (PL_do_undump) {
a0d0e21e
LW		 1596
1597 /* Come here if running an undumped a.out. */
1598
3280af22
NIS		 1599 PL_origfilename = savepv(argv[0]);
1600 PL_do_undump = FALSE;
a0d0e21e 1601 cxstack_ix = -1; /* start label stack again */
748a9306 1602 init_ids();
284167a5 1603 assert (!TAINT_get);
b7975bdd 1604 TAINT;
e2051532 1605 set_caret_X();
b7975bdd 1606 TAINT_NOT;
a0d0e21e
LW		 1607 init_postdump_symbols(argc,argv,env);
1608 return 0;
1609 }
1610
3280af22 1611 if (PL_main_root) {
3280af22 1612 op_free(PL_main_root);
5f66b61c 1613 PL_main_root = NULL;
ff0cee69 1614 }
5f66b61c 1615 PL_main_start = NULL;
3280af22 1616 SvREFCNT_dec(PL_main_cv);
601f1833 1617 PL_main_cv = NULL;
79072805 1618
3280af22
NIS		 1619 time(&PL_basetime);
1620 oldscope = PL_scopestack_ix;
599cee73 1621 PL_dowarn = G_WARN_OFF;
f86702cc 1622
14dd3ad8 1623 JMPENV_PUSH(ret);
6224f72b 1624 switch (ret) {
312caa8e 1625 case 0:
14dd3ad8 1626 parse_body(env,xsinit);
9ebf26ad 1627 if (PL_unitcheckav) {
3c10abe3 1628 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR		 1629 }
1630 if (PL_checkav) {
ca7b837b 1631 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1632 call_list(oldscope, PL_checkav);
9ebf26ad 1633 }
14dd3ad8
GS		 1634 ret = 0;
1635 break;
6224f72b
GS		 1636 case 1:
1637 STATUS_ALL_FAILURE;
924ba076 1638 /* FALLTHROUGH */
6224f72b
GS		 1639 case 2:
1640 /* my_exit() was called */
3280af22 1641 while (PL_scopestack_ix > oldscope)
6224f72b
GS		 1642 LEAVE;
1643 FREETMPS;
03d9f026 1644 SET_CURSTASH(PL_defstash);
9ebf26ad 1645 if (PL_unitcheckav) {
3c10abe3 1646 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR		 1647 }
1648 if (PL_checkav) {
ca7b837b 1649 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1650 call_list(oldscope, PL_checkav);
9ebf26ad 1651 }
37038d91 1652 ret = STATUS_EXIT;
14dd3ad8 1653 break;
6224f72b 1654 case 3:
bf49b057 1655 PerlIO_printf(Perl_error_log, "panic: top_env\n");
14dd3ad8
GS		 1656 ret = 1;
1657 break;
6224f72b 1658 }
14dd3ad8
GS		 1659 JMPENV_POP;
1660 return ret;
1661}
1662
4a5df386
NC		 1663/* This needs to stay in perl.c, as perl.c is compiled with different flags for
1664 miniperl, and we need to see those flags reflected in the values here. */
1665
1666/* What this returns is subject to change. Use the public interface in Config.
1667 */
1668static void
1669S_Internals_V(pTHX_ CV *cv)
1670{
1671 dXSARGS;
1672#ifdef LOCAL_PATCH_COUNT
1673 const int local_patch_count = LOCAL_PATCH_COUNT;
1674#else
1675 const int local_patch_count = 0;
1676#endif
2dc296d2 1677 const int entries = 3 + local_patch_count;
4a5df386 1678 int i;
fe1c5936 1679 static const char non_bincompat_options[] =
4a5df386
NC		 1680# ifdef DEBUGGING
1681 " DEBUGGING"
1682# endif
1683# ifdef NO_MATHOMS
0d311fbe 1684 " NO_MATHOMS"
4a5df386 1685# endif
59b86f4b
DM		 1686# ifdef NO_HASH_SEED
1687 " NO_HASH_SEED"
1688# endif
3b0e4ee2
MB		 1689# ifdef NO_TAINT_SUPPORT
1690 " NO_TAINT_SUPPORT"
1691# endif
cb26ef7a
MB		 1692# ifdef PERL_BOOL_AS_CHAR
1693 " PERL_BOOL_AS_CHAR"
1694# endif
93c10d60
FC		 1695# ifdef PERL_COPY_ON_WRITE
1696 " PERL_COPY_ON_WRITE"
1697# endif
4a5df386
NC		 1698# ifdef PERL_DISABLE_PMC
1699 " PERL_DISABLE_PMC"
1700# endif
1701# ifdef PERL_DONT_CREATE_GVSV
1702 " PERL_DONT_CREATE_GVSV"
1703# endif
9a044a43
NC		 1704# ifdef PERL_EXTERNAL_GLOB
1705 " PERL_EXTERNAL_GLOB"
1706# endif
59b86f4b
DM		 1707# ifdef PERL_HASH_FUNC_SIPHASH
1708 " PERL_HASH_FUNC_SIPHASH"
1709# endif
1710# ifdef PERL_HASH_FUNC_SDBM
1711 " PERL_HASH_FUNC_SDBM"
1712# endif
1713# ifdef PERL_HASH_FUNC_DJB2
1714 " PERL_HASH_FUNC_DJB2"
1715# endif
1716# ifdef PERL_HASH_FUNC_SUPERFAST
1717 " PERL_HASH_FUNC_SUPERFAST"
1718# endif
1719# ifdef PERL_HASH_FUNC_MURMUR3
1720 " PERL_HASH_FUNC_MURMUR3"
1721# endif
1722# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME
1723 " PERL_HASH_FUNC_ONE_AT_A_TIME"
1724# endif
1725# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
1726 " PERL_HASH_FUNC_ONE_AT_A_TIME_HARD"
1727# endif
1728# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_OLD
1729 " PERL_HASH_FUNC_ONE_AT_A_TIME_OLD"
1730# endif
4a5df386
NC		 1731# ifdef PERL_IS_MINIPERL
1732 " PERL_IS_MINIPERL"
1733# endif
1734# ifdef PERL_MALLOC_WRAP
1735 " PERL_MALLOC_WRAP"
1736# endif
1737# ifdef PERL_MEM_LOG
1738 " PERL_MEM_LOG"
1739# endif
1740# ifdef PERL_MEM_LOG_NOIMPL
1741 " PERL_MEM_LOG_NOIMPL"
1742# endif
59b86f4b
DM		 1743# ifdef PERL_PERTURB_KEYS_DETERMINISTIC
1744 " PERL_PERTURB_KEYS_DETERMINISTIC"
1745# endif
1746# ifdef PERL_PERTURB_KEYS_DISABLED
1747 " PERL_PERTURB_KEYS_DISABLED"
1748# endif
1749# ifdef PERL_PERTURB_KEYS_RANDOM
1750 " PERL_PERTURB_KEYS_RANDOM"
1751# endif
c3cf41ec
NC		 1752# ifdef PERL_PRESERVE_IVUV
1753 " PERL_PRESERVE_IVUV"
1754# endif
c051e30b
NC		 1755# ifdef PERL_RELOCATABLE_INCPUSH
1756 " PERL_RELOCATABLE_INCPUSH"
1757# endif
4a5df386
NC		 1758# ifdef PERL_USE_DEVEL
1759 " PERL_USE_DEVEL"
1760# endif
1761# ifdef PERL_USE_SAFE_PUTENV
1762 " PERL_USE_SAFE_PUTENV"
1763# endif
a3749cf3
NC		 1764# ifdef UNLINK_ALL_VERSIONS
1765 " UNLINK_ALL_VERSIONS"
1766# endif
de618ee4
NC		 1767# ifdef USE_ATTRIBUTES_FOR_PERLIO
1768 " USE_ATTRIBUTES_FOR_PERLIO"
1769# endif
4a5df386
NC		 1770# ifdef USE_FAST_STDIO
1771 " USE_FAST_STDIO"
1772# endif
59b86f4b
DM		 1773# ifdef USE_HASH_SEED_EXPLICIT
1774 " USE_HASH_SEED_EXPLICIT"
1775# endif
98548bdf
NC		 1776# ifdef USE_LOCALE
1777 " USE_LOCALE"
1778# endif
98548bdf
NC		 1779# ifdef USE_LOCALE_CTYPE
1780 " USE_LOCALE_CTYPE"
1781# endif
5a8d8935
NC		 1782# ifdef USE_PERL_ATOF
1783 " USE_PERL_ATOF"
1784# endif
0d311fbe
NC		 1785# ifdef USE_SITECUSTOMIZE
1786 " USE_SITECUSTOMIZE"
1787# endif
4a5df386
NC		 1788 ;
1789 PERL_UNUSED_ARG(cv);
d3db1514 1790 PERL_UNUSED_VAR(items);
4a5df386
NC		 1791
1792 EXTEND(SP, entries);
1793
1794 PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0)));
1795 PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
1796 sizeof(non_bincompat_options) - 1, SVs_TEMP));
1797
1798#ifdef __DATE__
1799# ifdef __TIME__
1800 PUSHs(Perl_newSVpvn_flags(aTHX_
1801 STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
1802 SVs_TEMP));
1803# else
1804 PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__),
1805 SVs_TEMP));
1806# endif
1807#else
1808 PUSHs(&PL_sv_undef);
1809#endif
1810
4a5df386
NC		 1811 for (i = 1; i <= local_patch_count; i++) {
1812 /* This will be an undef, if PL_localpatches[i] is NULL. */
1813 PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0)));
1814 }
1815
1816 XSRETURN(entries);
1817}
1818
be71fc8f
NC		 1819#define INCPUSH_UNSHIFT 0x01
1820#define INCPUSH_ADD_OLD_VERS 0x02
1821#define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04
1822#define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08
1823#define INCPUSH_NOT_BASEDIR 0x10
1824#define INCPUSH_CAN_RELOCATE 0x20
1e3208d8
NC		 1825#define INCPUSH_ADD_SUB_DIRS \
1826 (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS)
e28f3139 1827
312caa8e 1828STATIC void *
14dd3ad8 1829S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
312caa8e 1830{
27da23d5 1831 dVAR;
2f9285f8 1832 PerlIO *rsfp;
312caa8e 1833 int argc = PL_origargc;
8f42b153 1834 char **argv = PL_origargv;
e1ec3a88 1835 const char *scriptname = NULL;
402582ca 1836 bool dosearch = FALSE;
eb578fdb 1837 char c;
737c24fc 1838 bool doextract = FALSE;
bd61b366 1839 const char *cddir = NULL;
ab019eaa 1840#ifdef USE_SITECUSTOMIZE
20ef40cf 1841 bool minus_f = FALSE;
ab019eaa 1842#endif
95670bde 1843 SV *linestr_sv = NULL;
5486870f 1844 bool add_read_e_script = FALSE;
87606032 1845 U32 lex_start_flags = 0;
009d90df 1846
ca7b837b 1847 PERL_SET_PHASE(PERL_PHASE_START);
9ebf26ad 1848
6224f72b 1849 init_main_stash();
54310121 1850
c7030b81
NC		 1851 {
1852 const char *s;
6224f72b
GS		 1853 for (argc--,argv++; argc > 0; argc--,argv++) {
1854 if (argv[0][0] != '-' || !argv[0][1])
1855 break;
6224f72b
GS		 1856 s = argv[0]+1;
1857 reswitch:
47f56822 1858 switch ((c = *s)) {
729a02f2 1859 case 'C':
1d5472a9
GS		 1860#ifndef PERL_STRICT_CR
1861 case '\r':
1862#endif
6224f72b
GS		 1863 case ' ':
1864 case '0':
1865 case 'F':
1866 case 'a':
1867 case 'c':
1868 case 'd':
1869 case 'D':
1870 case 'h':
1871 case 'i':
1872 case 'l':
1873 case 'M':
1874 case 'm':
1875 case 'n':
1876 case 'p':
1877 case 's':
1878 case 'u':
1879 case 'U':
1880 case 'v':
599cee73
PM		 1881 case 'W':
1882 case 'X':
6224f72b 1883 case 'w':
97bd5664 1884 if ((s = moreswitches(s)))
6224f72b
GS		 1885 goto reswitch;
1886 break;
33b78306 1887
1dbad523 1888 case 't':
dc6d7f5c 1889#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 1890 /* silently ignore */
dc6d7f5c 1891#elif defined(NO_TAINT_SUPPORT)
3231f579 1892 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
S		 1893 "Cowardly refusing to run with -t or -T flags");
1894#else
22f7c9c9 1895 CHECK_MALLOC_TOO_LATE_FOR('t');
284167a5
S		 1896 if( !TAINTING_get ) {
1897 TAINT_WARN_set(TRUE);
1898 TAINTING_set(TRUE);
317ea90d 1899 }
284167a5 1900#endif
317ea90d
MS		 1901 s++;
1902 goto reswitch;
6224f72b 1903 case 'T':
dc6d7f5c 1904#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 1905 /* silently ignore */
dc6d7f5c 1906#elif defined(NO_TAINT_SUPPORT)
3231f579 1907 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
S		 1908 "Cowardly refusing to run with -t or -T flags");
1909#else
22f7c9c9 1910 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
S		 1911 TAINTING_set(TRUE);
1912 TAINT_WARN_set(FALSE);
1913#endif
6224f72b
GS		 1914 s++;
1915 goto reswitch;
f86702cc 1916
bc9b29db
RH		 1917 case 'E':
1918 PL_minus_E = TRUE;
924ba076 1919 /* FALLTHROUGH */
6224f72b 1920 case 'e':
f20b2998 1921 forbid_setid('e', FALSE);
3280af22 1922 if (!PL_e_script) {
396482e1 1923 PL_e_script = newSVpvs("");
5486870f 1924 add_read_e_script = TRUE;
6224f72b
GS		 1925 }
1926 if (*++s)
3280af22 1927 sv_catpv(PL_e_script, s);
6224f72b 1928 else if (argv[1]) {
3280af22 1929 sv_catpv(PL_e_script, argv[1]);
6224f72b
GS		 1930 argc--,argv++;
1931 }
1932 else
47f56822 1933 Perl_croak(aTHX_ "No code specified for -%c", c);
396482e1 1934 sv_catpvs(PL_e_script, "\n");
6224f72b 1935 break;
afe37c7d 1936
20ef40cf 1937 case 'f':
f5542d3a 1938#ifdef USE_SITECUSTOMIZE
20ef40cf 1939 minus_f = TRUE;
f5542d3a 1940#endif
20ef40cf
GA		 1941 s++;
1942 goto reswitch;
1943
6224f72b 1944 case 'I': /* -I handled both here and in moreswitches() */
f20b2998 1945 forbid_setid('I', FALSE);
bd61b366 1946 if (!*++s && (s=argv[1]) != NULL) {
6224f72b
GS		 1947 argc--,argv++;
1948 }
6224f72b 1949 if (s && *s) {
0df16ed7 1950 STRLEN len = strlen(s);
55b4bc1c 1951 incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
0df16ed7
GS		 1952 }
1953 else
a67e862a 1954 Perl_croak(aTHX_ "No directory specified for -I");
6224f72b 1955 break;
6224f72b 1956 case 'S':
f20b2998 1957 forbid_setid('S', FALSE);
6224f72b
GS		 1958 dosearch = TRUE;
1959 s++;
1960 goto reswitch;
1961 case 'V':
7edfd0ef
NC		 1962 {
1963 SV *opts_prog;
1964
7edfd0ef 1965 if (*++s != ':') {
37ca4a5b 1966 opts_prog = newSVpvs("use Config; Config::_V()");
7edfd0ef
NC		 1967 }
1968 else {
1969 ++s;
1970 opts_prog = Perl_newSVpvf(aTHX_
37ca4a5b 1971 "use Config; Config::config_vars(qw%c%s%c)",
7edfd0ef
NC		 1972 0, s, 0);
1973 s += strlen(s);
1974 }
37ca4a5b 1975 Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog);
7edfd0ef
NC		 1976 /* don't look for script or read stdin */
1977 scriptname = BIT_BUCKET;
1978 goto reswitch;
6224f72b 1979 }
6224f72b 1980 case 'x':
737c24fc 1981 doextract = TRUE;
6224f72b 1982 s++;
304334da 1983 if (*s)
f4c556ac 1984 cddir = s;
6224f72b
GS		 1985 break;
1986 case 0:
1987 break;
1988 case '-':
1989 if (!*++s || isSPACE(*s)) {
1990 argc--,argv++;
1991 goto switch_end;
1992 }
ee8bc8b7
NC		 1993 /* catch use of gnu style long options.
1994 Both of these exit immediately. */
1995 if (strEQ(s, "version"))
1996 minus_v();
1997 if (strEQ(s, "help"))
1998 usage();
6224f72b 1999 s--;
924ba076 2000 /* FALLTHROUGH */
6224f72b 2001 default:
cea2e8a9 2002 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
8d063cd8
LW		 2003 }
2004 }
c7030b81
NC		 2005 }
2006
6224f72b 2007 switch_end:
54310121 2008
c7030b81
NC		 2009 {
2010 char *s;
2011
f675dbe5
CB		 2012 if (
2013#ifndef SECURE_INTERNAL_GETENV
284167a5 2014 !TAINTING_get &&
f675dbe5 2015#endif
cf756827 2016 (s = PerlEnv_getenv("PERL5OPT")))
0df16ed7 2017 {
9e0b0d62
KW		 2018 /* s points to static memory in getenv(), which may be overwritten at
2019 * any time; use a mortal copy instead */
2020 s = SvPVX(sv_2mortal(newSVpv(s, 0)));
2021
74288ac8
GS		 2022 while (isSPACE(*s))
2023 s++;
317ea90d 2024 if (*s == '-' && *(s+1) == 'T') {
dc6d7f5c 2025#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 2026 /* silently ignore */
dc6d7f5c 2027#elif defined(NO_TAINT_SUPPORT)
3231f579 2028 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
S		 2029 "Cowardly refusing to run with -t or -T flags");
2030#else
22f7c9c9 2031 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
S		 2032 TAINTING_set(TRUE);
2033 TAINT_WARN_set(FALSE);
2034#endif
317ea90d 2035 }
74288ac8 2036 else {
bd61b366 2037 char *popt_copy = NULL;
74288ac8 2038 while (s && *s) {
54913509 2039 const char *d;
74288ac8
GS		 2040 while (isSPACE(*s))
2041 s++;
2042 if (*s == '-') {
2043 s++;
2044 if (isSPACE(*s))
2045 continue;
2046 }
4ea8f8fb 2047 d = s;
74288ac8
GS		 2048 if (!*s)
2049 break;
2b622f1a 2050 if (!strchr("CDIMUdmtwW", *s))
cea2e8a9 2051 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
4ea8f8fb
MS		 2052 while (++s && *s) {
2053 if (isSPACE(*s)) {
cf756827 2054 if (!popt_copy) {
bfa6c418
NC		 2055 popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
2056 s = popt_copy + (s - d);
2057 d = popt_copy;
cf756827 2058 }
4ea8f8fb
MS		 2059 *s++ = '\0';
2060 break;
2061 }
2062 }
1c4db469 2063 if (*d == 't') {
dc6d7f5c 2064#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 2065 /* silently ignore */
dc6d7f5c 2066#elif defined(NO_TAINT_SUPPORT)
3231f579 2067 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
S		 2068 "Cowardly refusing to run with -t or -T flags");
2069#else
2070 if( !TAINTING_get) {
2071 TAINT_WARN_set(TRUE);
2072 TAINTING_set(TRUE);
317ea90d 2073 }
284167a5 2074#endif
1c4db469 2075 } else {
97bd5664 2076 moreswitches(d);
1c4db469 2077 }
6224f72b 2078 }
6224f72b
GS		 2079 }
2080 }
c7030b81 2081 }
a0d0e21e 2082
c29067d7
CH		 2083 /* Set $^X early so that it can be used for relocatable paths in @INC */
2084 /* and for SITELIB_EXP in USE_SITECUSTOMIZE */
284167a5 2085 assert (!TAINT_get);
c29067d7 2086 TAINT;
e2051532 2087 set_caret_X();
c29067d7
CH		 2088 TAINT_NOT;
2089
43c0c913 2090#if defined(USE_SITECUSTOMIZE)
20ef40cf 2091 if (!minus_f) {
43c0c913 2092 /* The games with local $! are to avoid setting errno if there is no
fc81b718
NC		 2093 sitecustomize script. "q%c...%c", 0, ..., 0 becomes "q\0...\0",
2094 ie a q() operator with a NUL byte as a the delimiter. This avoids
2095 problems with pathnames containing (say) ' */
43c0c913
NC		 2096# ifdef PERL_IS_MINIPERL
2097 AV *const inc = GvAV(PL_incgv);
2098 SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL;
2099
2100 if (inc0) {
15870c5c
NC		 2101 /* if lib/buildcustomize.pl exists, it should not fail. If it does,
2102 it should be reported immediately as a build failure. */
43c0c913
NC		 2103 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2104 Perl_newSVpvf(aTHX_
5de87db5 2105 "BEGIN { my $f = q%c%s%"SVf"/buildcustomize.pl%c; "
af26e4f2
FC		 2106 "do {local $!; -f $f }"
2107 " and do $f || die $@ || qq '$f: $!' }",
5de87db5 2108 0, (TAINTING_get ? "./" : ""), SVfARG(*inc0), 0));
43c0c913
NC		 2109 }
2110# else
2111 /* SITELIB_EXP is a function call on Win32. */
c29067d7 2112 const char *const raw_sitelib = SITELIB_EXP;
bac5c4fc
JD		 2113 if (raw_sitelib) {
2114 /* process .../.. if PERL_RELOCATABLE_INC is defined */
2115 SV *sitelib_sv = mayberelocate(raw_sitelib, strlen(raw_sitelib),
2116 INCPUSH_CAN_RELOCATE);
2117 const char *const sitelib = SvPVX(sitelib_sv);
2118 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2119 Perl_newSVpvf(aTHX_
2120 "BEGIN { do {local $!; -f q%c%s/sitecustomize.pl%c} && do q%c%s/sitecustomize.pl%c }",
c1f6cd39
BF		 2121 0, SVfARG(sitelib), 0,
2122 0, SVfARG(sitelib), 0));
bac5c4fc
JD		 2123 assert (SvREFCNT(sitelib_sv) == 1);
2124 SvREFCNT_dec(sitelib_sv);
2125 }
43c0c913 2126# endif
20ef40cf
GA		 2127 }
2128#endif
2129
6224f72b
GS		 2130 if (!scriptname)
2131 scriptname = argv[0];
3280af22 2132 if (PL_e_script) {
6224f72b
GS		 2133 argc++,argv--;
2134 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
2135 }
bd61b366 2136 else if (scriptname == NULL) {
6224f72b
GS		 2137#ifdef MSDOS
2138 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
97bd5664 2139 moreswitches("h");
6224f72b
GS		 2140#endif
2141 scriptname = "-";
2142 }
2143
284167a5 2144 assert (!TAINT_get);
2cace6ac 2145 init_perllib();
6224f72b 2146
a52eba0e 2147 {
f20b2998 2148 bool suidscript = FALSE;
829372d3 2149
8d113837 2150 rsfp = open_script(scriptname, dosearch, &suidscript);
c0b3891a
NC		 2151 if (!rsfp) {
2152 rsfp = PerlIO_stdin();
87606032 2153 lex_start_flags = LEX_DONT_CLOSE_RSFP;
c0b3891a 2154 }
6224f72b 2155
b24bc095 2156 validate_suid(rsfp);
6224f72b 2157
64ca3a65 2158#ifndef PERL_MICRO
a52eba0e
NC		 2159# if defined(SIGCHLD) || defined(SIGCLD)
2160 {
2161# ifndef SIGCHLD
2162# define SIGCHLD SIGCLD
2163# endif
2164 Sighandler_t sigstate = rsignal_state(SIGCHLD);
2165 if (sigstate == (Sighandler_t) SIG_IGN) {
a2a5de95
NC		 2166 Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
2167 "Can't ignore signal CHLD, forcing to default");
a52eba0e
NC		 2168 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
2169 }
0b5b802d 2170 }
a52eba0e 2171# endif
64ca3a65 2172#endif
0b5b802d 2173
737c24fc 2174 if (doextract) {
faef540c 2175
f20b2998 2176 /* This will croak if suidscript is true, as -x cannot be used with
faef540c
NC		 2177 setuid scripts. */
2178 forbid_setid('x', suidscript);
f20b2998 2179 /* Hence you can't get here if suidscript is true */
faef540c 2180
95670bde
NC		 2181 linestr_sv = newSV_type(SVt_PV);
2182 lex_start_flags |= LEX_START_COPIED;
2f9285f8 2183 find_beginning(linestr_sv, rsfp);
a52eba0e
NC		 2184 if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
2185 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
2186 }
f4c556ac 2187 }
6224f72b 2188
ea726b52 2189 PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
3280af22
NIS		 2190 CvUNIQUE_on(PL_compcv);
2191
eacbb379 2192 CvPADLIST_set(PL_compcv, pad_new(0));
6224f72b 2193
dd69841b
BB		 2194 PL_isarev = newHV();
2195
0c4f7ff0 2196 boot_core_PerlIO();
6224f72b 2197 boot_core_UNIVERSAL();
e1a479c5 2198 boot_core_mro();
4a5df386 2199 newXS("Internals::V", S_Internals_V, __FILE__);
6224f72b
GS		 2200
2201 if (xsinit)
acfe0abc 2202 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
64ca3a65 2203#ifndef PERL_MICRO
739a0b84 2204#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(SYMBIAN)
c5be433b 2205 init_os_extras();
6224f72b 2206#endif
64ca3a65 2207#endif
6224f72b 2208
29209bc5 2209#ifdef USE_SOCKS
1b9c9cf5
DH		 2210# ifdef HAS_SOCKS5_INIT
2211 socks5_init(argv[0]);
2212# else
29209bc5 2213 SOCKSinit(argv[0]);
1b9c9cf5 2214# endif
ac27b0f5 2215#endif
29209bc5 2216
6224f72b
GS		 2217 init_predump_symbols();
2218 /* init_postdump_symbols not currently designed to be called */
2219 /* more than once (ENV isn't cleared first, for example) */
2220 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
3280af22 2221 if (!PL_do_undump)
6224f72b
GS		 2222 init_postdump_symbols(argc,argv,env);
2223
27da23d5
JH		 2224 /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE},
2225 * or explicitly in some platforms.
085a54d9 2226 * locale.c:Perl_init_i18nl10n() if the environment
a05d7ebb 2227 * look like the user wants to use UTF-8. */
a0fd4948 2228#if defined(__SYMBIAN32__)
27da23d5
JH		 2229 PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */
2230#endif
e27b5b51 2231# ifndef PERL_IS_MINIPERL
06e66572
JH		 2232 if (PL_unicode) {
2233 /* Requires init_predump_symbols(). */
a05d7ebb 2234 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
06e66572
JH		 2235 IO* io;
2236 PerlIO* fp;
2237 SV* sv;
2238
a05d7ebb 2239 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
06e66572 2240 * and the default open disciplines. */
a05d7ebb
JH		 2241 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
2242 PL_stdingv && (io = GvIO(PL_stdingv)) &&
2243 (fp = IoIFP(io)))
2244 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2245 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
2246 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
2247 (fp = IoOFP(io)))
2248 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2249 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
2250 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
2251 (fp = IoOFP(io)))
2252 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2253 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
fafc274c
NC		 2254 (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL,
2255 SVt_PV)))) {
a05d7ebb
JH		 2256 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
2257 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
2258 if (in) {
2259 if (out)
76f68e9b 2260 sv_setpvs(sv, ":utf8\0:utf8");
a05d7ebb 2261 else
76f68e9b 2262 sv_setpvs(sv, ":utf8\0");
a05d7ebb
JH		 2263 }
2264 else if (out)
76f68e9b 2265 sv_setpvs(sv, "\0:utf8");
a05d7ebb
JH		 2266 SvSETMAGIC(sv);
2267 }
b310b053
JH		 2268 }
2269 }
e27b5b51 2270#endif
b310b053 2271
c7030b81
NC		 2272 {
2273 const char *s;
4ffa73a3
JH		 2274 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
2275 if (strEQ(s, "unsafe"))
2276 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
2277 else if (strEQ(s, "safe"))
2278 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
2279 else
2280 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
2281 }
c7030b81 2282 }
4ffa73a3 2283
81d86705 2284
87606032 2285 lex_start(linestr_sv, rsfp, lex_start_flags);
d2687c98 2286 SvREFCNT_dec(linestr_sv);
95670bde 2287
219f7226 2288 PL_subname = newSVpvs("main");
6224f72b 2289
5486870f
DM		 2290 if (add_read_e_script)
2291 filter_add(read_e_script, NULL);
2292
6224f72b
GS		 2293 /* now parse the script */
2294
93189314 2295 SETERRNO(0,SS_NORMAL);
28ac2b49 2296 if (yyparse(GRAMPROG) || PL_parser->error_count) {
3280af22 2297 if (PL_minus_c)
cea2e8a9 2298 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
6224f72b 2299 else {
cea2e8a9 2300 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
097ee67d 2301 PL_origfilename);
6224f72b
GS		 2302 }
2303 }
57843af0 2304 CopLINE_set(PL_curcop, 0);
03d9f026 2305 SET_CURSTASH(PL_defstash);
3280af22
NIS		 2306 if (PL_e_script) {
2307 SvREFCNT_dec(PL_e_script);
a0714e2c 2308 PL_e_script = NULL;
6224f72b
GS		 2309 }
2310
3280af22 2311 if (PL_do_undump)
6224f72b
GS		 2312 my_unexec();
2313
57843af0
GS		 2314 if (isWARN_ONCE) {
2315 SAVECOPFILE(PL_curcop);
2316 SAVECOPLINE(PL_curcop);
3280af22 2317 gv_check(PL_defstash);
57843af0 2318 }
6224f72b
GS		 2319
2320 LEAVE;
2321 FREETMPS;
2322
2323#ifdef MYMALLOC
f6a607bc
RGS		 2324 {
2325 const char *s;
22ff3130
HS		 2326 UV uv;
2327 s = PerlEnv_getenv("PERL_DEBUG_MSTATS");
2328 if (s && grok_atoUV(s, &uv, NULL) && uv >= 2)
96e440d2 2329 dump_mstats("after compilation:");
f6a607bc 2330 }
6224f72b
GS		 2331#endif
2332
2333 ENTER;
febb3a6d 2334 PL_restartjmpenv = NULL;
3280af22 2335 PL_restartop = 0;
312caa8e 2336 return NULL;
6224f72b
GS		 2337}
2338
954c1994
GS		 2339/*
2340=for apidoc perl_run
2341
2342Tells a Perl interpreter to run. See L<perlembed>.
2343
2344=cut
2345*/
2346
6224f72b 2347int
0cb96387 2348perl_run(pTHXx)
6224f72b 2349{
6224f72b 2350 I32 oldscope;
14dd3ad8 2351 int ret = 0;
db36c5a1 2352 dJMPENV;
6224f72b 2353
7918f24d
NC		 2354 PERL_ARGS_ASSERT_PERL_RUN;
2355#ifndef MULTIPLICITY
ed6c66dd 2356 PERL_UNUSED_ARG(my_perl);
7918f24d 2357#endif
9d4ba2ae 2358
3280af22 2359 oldscope = PL_scopestack_ix;
96e176bf
CL		 2360#ifdef VMS
2361 VMSISH_HUSHED = 0;
2362#endif
6224f72b 2363
14dd3ad8 2364 JMPENV_PUSH(ret);
6224f72b
GS		 2365 switch (ret) {
2366 case 1:
2367 cxstack_ix = -1; /* start context stack again */
312caa8e 2368 goto redo_body;
14dd3ad8 2369 case 0: /* normal completion */
14dd3ad8
GS		 2370 redo_body:
2371 run_body(oldscope);
924ba076 2372 /* FALLTHROUGH */
14dd3ad8 2373 case 2: /* my_exit() */
3280af22 2374 while (PL_scopestack_ix > oldscope)
6224f72b
GS		 2375 LEAVE;
2376 FREETMPS;
03d9f026 2377 SET_CURSTASH(PL_defstash);
3a1ee7e8 2378 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
9ebf26ad 2379 PL_endav && !PL_minus_c) {
ca7b837b 2380 PERL_SET_PHASE(PERL_PHASE_END);
31d77e54 2381 call_list(oldscope, PL_endav);
9ebf26ad 2382 }
6224f72b
GS		 2383#ifdef MYMALLOC
2384 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
2385 dump_mstats("after execution: ");
2386#endif
37038d91 2387 ret = STATUS_EXIT;
14dd3ad8 2388 break;
6224f72b 2389 case 3:
312caa8e
CS		 2390 if (PL_restartop) {
2391 POPSTACK_TO(PL_mainstack);
2392 goto redo_body;
6224f72b 2393 }
5637ef5b 2394 PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n");
312caa8e 2395 FREETMPS;
14dd3ad8
GS		 2396 ret = 1;
2397 break;
6224f72b
GS		 2398 }
2399
14dd3ad8
GS		 2400 JMPENV_POP;
2401 return ret;
312caa8e
CS		 2402}
2403
dd374669 2404STATIC void
14dd3ad8
GS		 2405S_run_body(pTHX_ I32 oldscope)
2406{
d3b97530
DM		 2407 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support (0x%x).\n",
2408 PL_sawampersand ? "Enabling" : "Omitting",
2409 (unsigned int)(PL_sawampersand)));
6224f72b 2410
3280af22 2411 if (!PL_restartop) {
cf2782cd 2412#ifdef DEBUGGING
f0e3f042
CS		 2413 if (DEBUG_x_TEST || DEBUG_B_TEST)
2414 dump_all_perl(!DEBUG_B_TEST);
ecae49c0
NC		 2415 if (!DEBUG_q_TEST)
2416 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
cf2782cd 2417#endif
6224f72b 2418
3280af22 2419 if (PL_minus_c) {
bf49b057 2420 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
6224f72b
GS		 2421 my_exit(0);
2422 }
3280af22 2423 if (PERLDB_SINGLE && PL_DBsingle)
a6d69523 2424 PL_DBsingle_iv = 1;
9ebf26ad 2425 if (PL_initav) {
ca7b837b 2426 PERL_SET_PHASE(PERL_PHASE_INIT);
3280af22 2427 call_list(oldscope, PL_initav);
9ebf26ad 2428 }
f1fac472 2429#ifdef PERL_DEBUG_READONLY_OPS
3107b51f
FC		 2430 if (PL_main_root && PL_main_root->op_slabbed)
2431 Slab_to_ro(OpSLAB(PL_main_root));
f1fac472 2432#endif
6224f72b
GS		 2433 }
2434
2435 /* do it */
2436
ca7b837b 2437 PERL_SET_PHASE(PERL_PHASE_RUN);
9ebf26ad 2438
3280af22 2439 if (PL_restartop) {
febb3a6d 2440 PL_restartjmpenv = NULL;
533c011a 2441 PL_op = PL_restartop;
3280af22 2442 PL_restartop = 0;
cea2e8a9 2443 CALLRUNOPS(aTHX);
6224f72b 2444 }
3280af22
NIS		 2445 else if (PL_main_start) {
2446 CvDEPTH(PL_main_cv) = 1;
533c011a 2447 PL_op = PL_main_start;
cea2e8a9 2448 CALLRUNOPS(aTHX);
6224f72b 2449 }
f6b3007c 2450 my_exit(0);
e5964223 2451 NOT_REACHED; /* NOTREACHED */
6224f72b
GS		 2452}
2453
954c1994 2454/*
ccfc67b7
JH		 2455=head1 SV Manipulation Functions
2456
954c1994
GS		 2457=for apidoc p||get_sv
2458
64ace3f8 2459Returns the SV of the specified Perl scalar. C<flags> are passed to
72d33970 2460C<gv_fetchpv>. If C<GV_ADD> is set and the
64ace3f8
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
GS		 2463
2464=cut
2465*/
2466
6224f72b 2467SV*
64ace3f8 2468Perl_get_sv(pTHX_ const char *name, I32 flags)
6224f72b
GS		 2469{
2470 GV *gv;
7918f24d
NC		 2471
2472 PERL_ARGS_ASSERT_GET_SV;
2473
64ace3f8 2474 gv = gv_fetchpv(name, flags, SVt_PV);
6224f72b
GS		 2475 if (gv)
2476 return GvSV(gv);
a0714e2c 2477 return NULL;
6224f72b
GS		 2478}
2479
954c1994 2480/*
ccfc67b7
JH		 2481=head1 Array Manipulation Functions
2482
954c1994
GS		 2483=for apidoc p||get_av
2484
f0b90de1
SF		 2485Returns the AV of the specified Perl global or package array with the given
2486name (so it won't work on lexical variables). C<flags> are passed
72d33970 2487to C<gv_fetchpv>. If C<GV_ADD> is set and the
cbfd0a87
NC		 2488Perl variable does not exist then it will be created. If C<flags> is zero
2489and the variable does not exist then NULL is returned.
954c1994 2490
f0b90de1
SF		 2491Perl equivalent: C<@{"$name"}>.
2492
954c1994
GS		 2493=cut
2494*/
2495
6224f72b 2496AV*
cbfd0a87 2497Perl_get_av(pTHX_ const char *name, I32 flags)
6224f72b 2498{
cbfd0a87 2499 GV* const gv = gv_fetchpv(name, flags, SVt_PVAV);
7918f24d
NC		 2500
2501 PERL_ARGS_ASSERT_GET_AV;
2502
cbfd0a87 2503 if (flags)
6224f72b
GS		 2504 return GvAVn(gv);
2505 if (gv)
2506 return GvAV(gv);
7d49f689 2507 return NULL;
6224f72b
GS		 2508}
2509
954c1994 2510/*
ccfc67b7
JH		 2511=head1 Hash Manipulation Functions
2512
954c1994
GS		 2513=for apidoc p||get_hv
2514
6673a63c 2515Returns the HV of the specified Perl hash. C<flags> are passed to
72d33970 2516C<gv_fetchpv>. If C<GV_ADD> is set and the
6673a63c 2517Perl variable does not exist then it will be created. If C<flags> is zero
796b6530 2518and the variable does not exist then C<NULL> is returned.
954c1994
GS		 2519
2520=cut
2521*/
2522
6224f72b 2523HV*
6673a63c 2524Perl_get_hv(pTHX_ const char *name, I32 flags)
6224f72b 2525{
6673a63c 2526 GV* const gv = gv_fetchpv(name, flags, SVt_PVHV);
7918f24d
NC		 2527
2528 PERL_ARGS_ASSERT_GET_HV;
2529
6673a63c 2530 if (flags)
a0d0e21e
LW		 2531 return GvHVn(gv);
2532 if (gv)
2533 return GvHV(gv);
5c284bb0 2534 return NULL;
a0d0e21e
LW		 2535}
2536
954c1994 2537/*
ccfc67b7
JH		 2538=head1 CV Manipulation Functions
2539
780a5241
NC		 2540=for apidoc p||get_cvn_flags
2541
2542Returns the CV of the specified Perl subroutine. C<flags> are passed to
72d33970 2543C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
780a5241
NC		 2544exist then it will be declared (which has the same effect as saying
2545C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
2546then NULL is returned.
2547
954c1994
GS		 2548=for apidoc p||get_cv
2549
780a5241 2550Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
954c1994
GS		 2551
2552=cut
2553*/
2554
a0d0e21e 2555CV*
780a5241 2556Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags)
a0d0e21e 2557{
780a5241 2558 GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV);
7918f24d
NC		 2559
2560 PERL_ARGS_ASSERT_GET_CVN_FLAGS;
2561
334dda80
FC		 2562 /* XXX this is probably not what they think they're getting.
2563 * It has the same effect as "sub name;", i.e. just a forward
2564 * declaration! */
780a5241 2565 if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
186a5ba8 2566 return newSTUB(gv,0);
780a5241 2567 }
a0d0e21e 2568 if (gv)
8ebc5c01 2569 return GvCVu(gv);
601f1833 2570 return NULL;
a0d0e21e
LW		 2571}
2572
2c67934f
NC		 2573/* Nothing in core calls this now, but we can't replace it with a macro and
2574 move it to mathoms.c as a macro would evaluate name twice. */
780a5241
NC		 2575CV*
2576Perl_get_cv(pTHX_ const char *name, I32 flags)
2577{
7918f24d
NC		 2578 PERL_ARGS_ASSERT_GET_CV;
2579
780a5241
NC		 2580 return get_cvn_flags(name, strlen(name), flags);
2581}
2582
79072805
LW		 2583/* Be sure to refetch the stack pointer after calling these routines. */
2584
954c1994 2585/*
ccfc67b7
JH		 2586
2587=head1 Callback Functions
2588
954c1994
GS		 2589=for apidoc p||call_argv
2590
f0b90de1 2591Performs a callback to the specified named and package-scoped Perl subroutine
796b6530 2592with C<argv> (a C<NULL>-terminated array of strings) as arguments. See
72d33970 2593L<perlcall>.
f0b90de1
SF		 2594
2595Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>.
954c1994
GS		 2596
2597=cut
2598*/
2599
a0d0e21e 2600I32
5aaab254 2601Perl_call_argv(pTHX_ const char *sub_name, I32 flags, char **argv)
ac27b0f5 2602
8ac85365
NIS		 2603 /* See G_* flags in cop.h */
2604 /* null terminated arg list */
8990e307 2605{
a0d0e21e 2606 dSP;
8990e307 2607
7918f24d
NC		 2608 PERL_ARGS_ASSERT_CALL_ARGV;
2609
924508f0 2610 PUSHMARK(SP);
3dc78631
DM		 2611 while (*argv) {
2612 mXPUSHs(newSVpv(*argv,0));
2613 argv++;
8990e307 2614 }
3dc78631 2615 PUTBACK;
864dbfa3 2616 return call_pv(sub_name, flags);
8990e307
LW		 2617}
2618
954c1994
GS		 2619/*
2620=for apidoc p||call_pv
2621
2622Performs a callback to the specified Perl sub. See L<perlcall>.
2623
2624=cut
2625*/
2626
a0d0e21e 2627I32
864dbfa3 2628Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
8ac85365
NIS		 2629 /* name of the subroutine */
2630 /* See G_* flags in cop.h */
a0d0e21e 2631{
7918f24d
NC		 2632 PERL_ARGS_ASSERT_CALL_PV;
2633
0da0e728 2634 return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags);
a0d0e21e
LW		 2635}
2636
954c1994
GS		 2637/*
2638=for apidoc p||call_method
2639
2640Performs a callback to the specified Perl method. The blessed object must
2641be on the stack. See L<perlcall>.
2642
2643=cut
2644*/
2645
a0d0e21e 2646I32
864dbfa3 2647Perl_call_method(pTHX_ const char *methname, I32 flags)
8ac85365
NIS		 2648 /* name of the subroutine */
2649 /* See G_* flags in cop.h */
a0d0e21e 2650{
46ca9bac 2651 STRLEN len;
c106c2be 2652 SV* sv;
7918f24d
NC		 2653 PERL_ARGS_ASSERT_CALL_METHOD;
2654
46ca9bac 2655 len = strlen(methname);
c106c2be
RZ		 2656 sv = flags & G_METHOD_NAMED
2657 ? sv_2mortal(newSVpvn_share(methname, len,0))
2658 : newSVpvn_flags(methname, len, SVs_TEMP);
46ca9bac 2659
c106c2be 2660 return call_sv(sv, flags | G_METHOD);
a0d0e21e
LW		 2661}
2662
2663/* May be called with any of a CV, a GV, or an SV containing the name. */
954c1994
GS		 2664/*
2665=for apidoc p||call_sv
2666
078e2213
TC		 2667Performs a callback to the Perl sub specified by the SV.
2668
7c0c544c 2669If neither the C<G_METHOD> nor C<G_METHOD_NAMED> flag is supplied, the
078e2213
TC		 2670SV may be any of a CV, a GV, a reference to a CV, a reference to a GV
2671or C<SvPV(sv)> will be used as the name of the sub to call.
2672
2673If the C<G_METHOD> flag is supplied, the SV may be a reference to a CV or
2674C<SvPV(sv)> will be used as the name of the method to call.
2675
2676If the C<G_METHOD_NAMED> flag is supplied, C<SvPV(sv)> will be used as
2677the name of the method to call.
2678
2679Some other values are treated specially for internal use and should
2680not be depended on.
2681
2682See L<perlcall>.
954c1994
GS		 2683
2684=cut
2685*/
2686
a0d0e21e 2687I32
001d637e 2688Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
8ac85365 2689 /* See G_* flags in cop.h */
a0d0e21e 2690{
27da23d5 2691 dVAR; dSP;
a0d0e21e 2692 LOGOP myop; /* fake syntax tree node */
b46e009d 2693 METHOP method_op;
aa689395 2694 I32 oldmark;
8ea43dc8 2695 VOL I32 retval = 0;
a0d0e21e 2696 I32 oldscope;
54310121 2697 bool oldcatch = CATCH_GET;
6224f72b 2698 int ret;
c4420975 2699 OP* const oldop = PL_op;
db36c5a1 2700 dJMPENV;
1e422769 2701
7918f24d
NC		 2702 PERL_ARGS_ASSERT_CALL_SV;
2703
a0d0e21e
LW		 2704 if (flags & G_DISCARD) {
2705 ENTER;
2706 SAVETMPS;
2707 }
2f8edad0
NC		 2708 if (!(flags & G_WANT)) {
2709 /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
2710 */
2711 flags |= G_SCALAR;
2712 }
a0d0e21e 2713
aa689395 2714 Zero(&myop, 1, LOGOP);
f51d4af5 2715 if (!(flags & G_NOARGS))
aa689395 2716 myop.op_flags |= OPf_STACKED;
4f911530 2717 myop.op_flags |= OP_GIMME_REVERSE(flags);
462e5cf6 2718 SAVEOP();
533c011a 2719 PL_op = (OP*)&myop;
aa689395 2720
3280af22 2721 EXTEND(PL_stack_sp, 1);
c106c2be
RZ		 2722 if (!(flags & G_METHOD_NAMED))
2723 *++PL_stack_sp = sv;
aa689395 2724 oldmark = TOPMARK;
3280af22 2725 oldscope = PL_scopestack_ix;
a0d0e21e 2726
3280af22 2727 if (PERLDB_SUB && PL_curstash != PL_debstash
36477c24 2728 /* Handle first BEGIN of -d. */
3280af22 2729 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
36477c24 2730 /* Try harder, since this may have been a sighandler, thus
2731 * curstash may be meaningless. */
ea726b52 2732 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
491527d0 2733 && !(flags & G_NODEBUG))
5ff48db8 2734 myop.op_private |= OPpENTERSUB_DB;
a0d0e21e 2735
c106c2be 2736 if (flags & (G_METHOD|G_METHOD_NAMED)) {
b46e009d 2737 Zero(&method_op, 1, METHOP);
2738 method_op.op_next = (OP*)&myop;
2739 PL_op = (OP*)&method_op;
c106c2be 2740 if ( flags & G_METHOD_NAMED ) {
b46e009d 2741 method_op.op_ppaddr = PL_ppaddr[OP_METHOD_NAMED];
2742 method_op.op_type = OP_METHOD_NAMED;
2743 method_op.op_u.op_meth_sv = sv;
c106c2be 2744 } else {
b46e009d 2745 method_op.op_ppaddr = PL_ppaddr[OP_METHOD];
2746 method_op.op_type = OP_METHOD;
c106c2be
RZ		 2747 }
2748 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
2749 myop.op_type = OP_ENTERSUB;
968b3946
GS		 2750 }
2751
312caa8e 2752 if (!(flags & G_EVAL)) {
0cdb2077 2753 CATCH_SET(TRUE);
d6f07c05 2754 CALL_BODY_SUB((OP*)&myop);
312caa8e 2755 retval = PL_stack_sp - (PL_stack_base + oldmark);
0253cb41 2756 CATCH_SET(oldcatch);
312caa8e
CS		 2757 }
2758 else {
d78bda3d 2759 myop.op_other = (OP*)&myop;
3280af22 2760 PL_markstack_ptr--;
edb2152a 2761 create_eval_scope(flags|G_FAKINGEVAL);
3280af22 2762 PL_markstack_ptr++;
a0d0e21e 2763
14dd3ad8 2764 JMPENV_PUSH(ret);
edb2152a 2765
6224f72b
GS		 2766 switch (ret) {
2767 case 0:
14dd3ad8 2768 redo_body:
d6f07c05 2769 CALL_BODY_SUB((OP*)&myop);
312caa8e 2770 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2771 if (!(flags & G_KEEPERR)) {
ab69dbc2 2772 CLEAR_ERRSV();
8433848b 2773 }
a0d0e21e 2774 break;
6224f72b 2775 case 1:
f86702cc 2776 STATUS_ALL_FAILURE;
924ba076 2777 /* FALLTHROUGH */
6224f72b 2778 case 2:
a0d0e21e 2779 /* my_exit() was called */
03d9f026 2780 SET_CURSTASH(PL_defstash);
a0d0e21e 2781 FREETMPS;
14dd3ad8 2782 JMPENV_POP;
f86702cc 2783 my_exit_jump();
e5964223 2784 NOT_REACHED; /* NOTREACHED */
6224f72b 2785 case 3:
3280af22 2786 if (PL_restartop) {
febb3a6d 2787 PL_restartjmpenv = NULL;
533c011a 2788 PL_op = PL_restartop;
3280af22 2789 PL_restartop = 0;
312caa8e 2790 goto redo_body;
a0d0e21e 2791 }
3280af22 2792 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2793 if ((flags & G_WANT) == G_ARRAY)
a0d0e21e
LW		 2794 retval = 0;
2795 else {
2796 retval = 1;
3280af22 2797 *++PL_stack_sp = &PL_sv_undef;
a0d0e21e 2798 }
312caa8e 2799 break;
a0d0e21e 2800 }
a0d0e21e 2801
edb2152a
NC		 2802 if (PL_scopestack_ix > oldscope)
2803 delete_eval_scope();
14dd3ad8 2804 JMPENV_POP;
a0d0e21e 2805 }
1e422769 2806
a0d0e21e 2807 if (flags & G_DISCARD) {
3280af22 2808 PL_stack_sp = PL_stack_base + oldmark;
a0d0e21e
LW		 2809 retval = 0;
2810 FREETMPS;
2811 LEAVE;
2812 }
533c011a 2813 PL_op = oldop;
a0d0e21e
LW		 2814 return retval;
2815}
2816
6e72f9df 2817/* Eval a string. The G_EVAL flag is always assumed. */
8990e307 2818
954c1994
GS		 2819/*
2820=for apidoc p||eval_sv
2821
72d33970 2822Tells Perl to C<eval> the string in the SV. It supports the same flags
796b6530 2823as C<call_sv>, with the obvious exception of C<G_EVAL>. See L<perlcall>.
954c1994
GS		 2824
2825=cut
2826*/
2827
a0d0e21e 2828I32
864dbfa3 2829Perl_eval_sv(pTHX_ SV *sv, I32 flags)
ac27b0f5 2830
8ac85365 2831 /* See G_* flags in cop.h */
a0d0e21e 2832{
97aff369 2833 dVAR;
924508f0 2834 dSP;
a0d0e21e 2835 UNOP myop; /* fake syntax tree node */
8ea43dc8
SP		 2836 VOL I32 oldmark = SP - PL_stack_base;
2837 VOL I32 retval = 0;
6224f72b 2838 int ret;
c4420975 2839 OP* const oldop = PL_op;
db36c5a1 2840 dJMPENV;
84902520 2841
7918f24d
NC		 2842 PERL_ARGS_ASSERT_EVAL_SV;
2843
4633a7c4
LW		 2844 if (flags & G_DISCARD) {
2845 ENTER;
2846 SAVETMPS;
2847 }
2848
462e5cf6 2849 SAVEOP();
533c011a 2850 PL_op = (OP*)&myop;
5ff48db8 2851 Zero(&myop, 1, UNOP);
3280af22
NIS		 2852 EXTEND(PL_stack_sp, 1);
2853 *++PL_stack_sp = sv;
79072805 2854
4633a7c4
LW		 2855 if (!(flags & G_NOARGS))
2856 myop.op_flags = OPf_STACKED;
6e72f9df 2857 myop.op_type = OP_ENTEREVAL;
4f911530 2858 myop.op_flags |= OP_GIMME_REVERSE(flags);
6e72f9df 2859 if (flags & G_KEEPERR)
2860 myop.op_flags |= OPf_SPECIAL;
a1941760
DM		 2861
2862 if (flags & G_RE_REPARSING)
2863 myop.op_private = (OPpEVAL_COPHH | OPpEVAL_RE_REPARSING);
4633a7c4 2864
dedbcade
DM		 2865 /* fail now; otherwise we could fail after the JMPENV_PUSH but
2866 * before a PUSHEVAL, which corrupts the stack after a croak */
2867 TAINT_PROPER("eval_sv()");
2868
14dd3ad8 2869 JMPENV_PUSH(ret);
6224f72b
GS		 2870 switch (ret) {
2871 case 0:
14dd3ad8 2872 redo_body:
2ba65d5f
DM		 2873 if (PL_op == (OP*)(&myop)) {
2874 PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX);
2875 if (!PL_op)
2876 goto fail; /* failed in compilation */
2877 }
4aca2f62 2878 CALLRUNOPS(aTHX);
312caa8e 2879 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2880 if (!(flags & G_KEEPERR)) {
ab69dbc2 2881 CLEAR_ERRSV();
8433848b 2882 }
4633a7c4 2883 break;
6224f72b 2884 case 1:
f86702cc 2885 STATUS_ALL_FAILURE;
924ba076 2886 /* FALLTHROUGH */
6224f72b 2887 case 2:
4633a7c4 2888 /* my_exit() was called */
03d9f026 2889 SET_CURSTASH(PL_defstash);
4633a7c4 2890 FREETMPS;
14dd3ad8 2891 JMPENV_POP;
f86702cc 2892 my_exit_jump();
e5964223 2893 NOT_REACHED; /* NOTREACHED */
6224f72b 2894 case 3:
3280af22 2895 if (PL_restartop) {
febb3a6d 2896 PL_restartjmpenv = NULL;
533c011a 2897 PL_op = PL_restartop;
3280af22 2898 PL_restartop = 0;
312caa8e 2899 goto redo_body;
4633a7c4 2900 }
4aca2f62 2901 fail:
3280af22 2902 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2903 if ((flags & G_WANT) == G_ARRAY)
4633a7c4
LW		 2904 retval = 0;
2905 else {
2906 retval = 1;
3280af22 2907 *++PL_stack_sp = &PL_sv_undef;
4633a7c4 2908 }
312caa8e 2909 break;
4633a7c4
LW		 2910 }
2911
14dd3ad8 2912 JMPENV_POP;
4633a7c4 2913 if (flags & G_DISCARD) {
3280af22 2914 PL_stack_sp = PL_stack_base + oldmark;
4633a7c4
LW		 2915 retval = 0;
2916 FREETMPS;
2917 LEAVE;
2918 }
533c011a 2919 PL_op = oldop;
4633a7c4
LW		 2920 return retval;
2921}
2922
954c1994
GS		 2923/*
2924=for apidoc p||eval_pv
2925
422791e4 2926Tells Perl to C<eval> the given string in scalar context and return an SV* result.
954c1994
GS		 2927
2928=cut
2929*/
2930
137443ea 2931SV*
864dbfa3 2932Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
137443ea 2933{
137443ea 2934 SV* sv = newSVpv(p, 0);
2935
7918f24d
NC		 2936 PERL_ARGS_ASSERT_EVAL_PV;
2937
864dbfa3 2938 eval_sv(sv, G_SCALAR);
137443ea 2939 SvREFCNT_dec(sv);
2940
ed1786ad
DD		 2941 {
2942 dSP;
2943 sv = POPs;
2944 PUTBACK;
2945 }
137443ea 2946
eed484f9
DD		 2947 /* just check empty string or undef? */
2948 if (croak_on_error) {
2949 SV * const errsv = ERRSV;
2950 if(SvTRUE_NN(errsv))
2951 /* replace with croak_sv? */
2952 Perl_croak_nocontext("%s", SvPV_nolen_const(errsv));
2d8e6c8d 2953 }
137443ea 2954
2955 return sv;
2956}
2957
4633a7c4
LW		 2958/* Require a module. */
2959
954c1994 2960/*
ccfc67b7
JH		 2961=head1 Embedding Functions
2962
954c1994
GS		 2963=for apidoc p||require_pv
2964
7d3fb230
BS		 2965Tells Perl to C<require> the file named by the string argument. It is
2966analogous to the Perl code C<eval "require '$file'">. It's even
2307c6d0 2967implemented that way; consider using load_module instead.
954c1994 2968
7d3fb230 2969=cut */
954c1994 2970
4633a7c4 2971void
864dbfa3 2972Perl_require_pv(pTHX_ const char *pv)
4633a7c4 2973{
d3acc0f7 2974 dSP;
97aff369 2975 SV* sv;
7918f24d
NC		 2976
2977 PERL_ARGS_ASSERT_REQUIRE_PV;
2978
e788e7d3 2979 PUSHSTACKi(PERLSI_REQUIRE);
be41e5d9
NC		 2980 sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
2981 eval_sv(sv_2mortal(sv), G_DISCARD);
d3acc0f7 2982 POPSTACK;
79072805
LW		 2983}
2984
76e3520e 2985STATIC void
b6f82619 2986S_usage(pTHX) /* XXX move this out into a module ? */
4633a7c4 2987{
ab821d7f 2988 /* This message really ought to be max 23 lines.
75c72d73 2989 * Removed -h because the user already knows that option. Others? */
fb73857a 2990
1566c39d
NC		 2991 /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
2992 minimum of 509 character string literals. */
27da23d5 2993 static const char * const usage_msg[] = {
1566c39d
NC		 2994" -0[octal] specify record separator (\\0, if no argument)\n"
2995" -a autosplit mode with -n or -p (splits $_ into @F)\n"
2996" -C[number/list] enables the listed Unicode features\n"
2997" -c check syntax only (runs BEGIN and CHECK blocks)\n"
2998" -d[:debugger] run program under debugger\n"
2999" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
3000" -e program one line of program (several -e's allowed, omit programfile)\n"
3001" -E program like -e, but enables all optional features\n"
3002" -f don't do $sitelib/sitecustomize.pl at startup\n"
3003" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
3004" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
3005" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
3006" -l[octal] enable line ending processing, specifies line terminator\n"
3007" -[mM][-]module execute \"use/no module...\" before executing program\n"
3008" -n assume \"while (<>) { ... }\" loop around program\n"
3009" -p assume loop like -n but print line also, like sed\n"
3010" -s enable rudimentary parsing for switches after programfile\n"
3011" -S look for programfile using PATH environment variable\n",
3012" -t enable tainting warnings\n"
3013" -T enable tainting checks\n"
3014" -u dump core after parsing program\n"
3015" -U allow unsafe operations\n"
3016" -v print version, patchlevel and license\n"
3017" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
60eaec42 3018" -w enable many useful warnings\n"
1566c39d
NC		 3019" -W enable all warnings\n"
3020" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
3021" -X disable all warnings\n"
3022" \n"
3023"Run 'perldoc perl' for more help with Perl.\n\n",
fb73857a 3024NULL
3025};
27da23d5 3026 const char * const *p = usage_msg;
1566c39d 3027 PerlIO *out = PerlIO_stdout();
fb73857a 3028
1566c39d
NC		 3029 PerlIO_printf(out,
3030 "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
b6f82619 3031 PL_origargv[0]);
fb73857a 3032 while (*p)
1566c39d 3033 PerlIO_puts(out, *p++);
b6f82619 3034 my_exit(0);
4633a7c4
LW		 3035}
3036
b4ab917c
DM		 3037/* convert a string of -D options (or digits) into an int.
3038 * sets *s to point to the char after the options */
3039
3040#ifdef DEBUGGING
3041int
e1ec3a88 3042Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
b4ab917c 3043{
27da23d5 3044 static const char * const usage_msgd[] = {
651b8f1a
NC		 3045 " Debugging flag values: (see also -d)\n"
3046 " p Tokenizing and parsing (with v, displays parse stack)\n"
3047 " s Stack snapshots (with v, displays all stacks)\n"
3048 " l Context (loop) stack processing\n"
3049 " t Trace execution\n"
3050 " o Method and overloading resolution\n",
3051 " c String/numeric conversions\n"
3052 " P Print profiling info, source file input state\n"
3053 " m Memory and SV allocation\n"
3054 " f Format processing\n"
3055 " r Regular expression parsing and execution\n"
3056 " x Syntax tree dump\n",
3057 " u Tainting checks\n"
3058 " H Hash dump -- usurps values()\n"
3059 " X Scratchpad allocation\n"
3060 " D Cleaning up\n"
56967202 3061 " S Op slab allocation\n"
651b8f1a
NC		 3062 " T Tokenising\n"
3063 " R Include reference counts of dumped variables (eg when using -Ds)\n",
3064 " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
3065 " v Verbose: use in conjunction with other flags\n"
3066 " C Copy On Write\n"
3067 " A Consistency checks on internal structures\n"
3068 " q quiet - currently only suppresses the 'EXECUTING' message\n"
3069 " M trace smart match resolution\n"
3070 " B dump suBroutine definitions, including special Blocks like BEGIN\n",
69014004 3071 " L trace some locale setting information--for Perl core development\n",
e6e64d9b
JC		 3072 NULL
3073 };
22ff3130 3074 UV uv = 0;
7918f24d
NC		 3075
3076 PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
3077
b4ab917c
DM		 3078 if (isALPHA(**s)) {
3079 /* if adding extra options, remember to update DEBUG_MASK */
69014004 3080 static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMBL";
b4ab917c 3081
0eb30aeb 3082 for (; isWORDCHAR(**s); (*s)++) {
c4420975 3083 const char * const d = strchr(debopts,**s);
b4ab917c 3084 if (d)
22ff3130 3085 uv |= 1 << (d - debopts);
b4ab917c 3086 else if (ckWARN_d(WARN_DEBUGGING))
e6e64d9b
JC		 3087 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3088 "invalid option -D%c, use -D'' to see choices\n", **s);
b4ab917c
DM		 3089 }
3090 }
e6e64d9b 3091 else if (isDIGIT(**s)) {
96e440d2 3092 const char* e;
22ff3130 3093 if (grok_atoUV(*s, &uv, &e))
96e440d2 3094 *s = e;
0eb30aeb 3095 for (; isWORDCHAR(**s); (*s)++) ;
b4ab917c 3096 }
ddcf8bc1 3097 else if (givehelp) {
06e869a4 3098 const char *const *p = usage_msgd;
651b8f1a 3099 while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
e6e64d9b 3100 }
22ff3130 3101 return (int)uv; /* ignore any UV->int conversion loss */
b4ab917c
DM		 3102}
3103#endif
3104
79072805
LW		 3105/* This routine handles any switches that can be given during run */
3106
c7030b81
NC		 3107const char *
3108Perl_moreswitches(pTHX_ const char *s)
79072805 3109{
27da23d5 3110 dVAR;
84c133a0 3111 UV rschar;
0544e6df 3112 const char option = *s; /* used to remember option in -m/-M code */
79072805 3113
7918f24d
NC		 3114 PERL_ARGS_ASSERT_MORESWITCHES;
3115
79072805
LW		 3116 switch (*s) {
3117 case '0':
a863c7d1 3118 {
f2095865 3119 I32 flags = 0;
a3b680e6 3120 STRLEN numlen;
f2095865
JH		 3121
3122 SvREFCNT_dec(PL_rs);
3123 if (s[1] == 'x' && s[2]) {
a3b680e6 3124 const char *e = s+=2;
f2095865
JH		 3125 U8 *tmps;
3126
a3b680e6
AL		 3127 while (*e)
3128 e++;
f2095865
JH		 3129 numlen = e - s;
3130 flags = PERL_SCAN_SILENT_ILLDIGIT;
3131 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
3132 if (s + numlen < e) {
3133 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
3134 numlen = 0;
3135 s--;
3136 }
396482e1 3137 PL_rs = newSVpvs("");
5f560d8a 3138 SvGROW(PL_rs, (STRLEN)(UVCHR_SKIP(rschar) + 1));
f2095865
JH		 3139 tmps = (U8*)SvPVX(PL_rs);
3140 uvchr_to_utf8(tmps, rschar);
5f560d8a 3141 SvCUR_set(PL_rs, UVCHR_SKIP(rschar));
f2095865
JH		 3142 SvUTF8_on(PL_rs);
3143 }
3144 else {
3145 numlen = 4;
3146 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
3147 if (rschar & ~((U8)~0))
3148 PL_rs = &PL_sv_undef;
3149 else if (!rschar && numlen >= 2)
396482e1 3150 PL_rs = newSVpvs("");
f2095865
JH		 3151 else {
3152 char ch = (char)rschar;
3153 PL_rs = newSVpvn(&ch, 1);
3154 }
3155 }
64ace3f8 3156 sv_setsv(get_sv("/", GV_ADD), PL_rs);
f2095865 3157 return s + numlen;
a863c7d1 3158 }
46487f74 3159 case 'C':
a05d7ebb 3160 s++;
dd374669 3161 PL_unicode = parse_unicode_opts( (const char **)&s );
5a22a2bb
NC		 3162 if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
3163 PL_utf8cache = -1;
46487f74 3164 return s;
2304df62 3165 case 'F':
5fc691f1 3166 PL_minus_a = TRUE;
3280af22 3167 PL_minus_F = TRUE;
24ffa309 3168 PL_minus_n = TRUE;
ebce5377
RGS		 3169 PL_splitstr = ++s;
3170 while (*s && !isSPACE(*s)) ++s;
e49e380e 3171 PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr);
2304df62 3172 return s;
79072805 3173 case 'a':
3280af22 3174 PL_minus_a = TRUE;
24ffa309 3175 PL_minus_n = TRUE;
79072805
LW		 3176 s++;
3177 return s;
3178 case 'c':
3280af22 3179 PL_minus_c = TRUE;
79072805
LW		 3180 s++;
3181 return s;
3182 case 'd':
f20b2998 3183 forbid_setid('d', FALSE);
4633a7c4 3184 s++;
2cbb2ee1
RGS		 3185
3186 /* -dt indicates to the debugger that threads will be used */
0eb30aeb 3187 if (*s == 't' && !isWORDCHAR(s[1])) {
2cbb2ee1
RGS		 3188 ++s;
3189 my_setenv("PERL5DB_THREADED", "1");
3190 }
3191
70c94a19
RR		 3192 /* The following permits -d:Mod to accepts arguments following an =
3193 in the fashion that -MSome::Mod does. */
3194 if (*s == ':' || *s == '=') {
b19934fb
NC		 3195 const char *start;
3196 const char *end;
3197 SV *sv;
3198
3199 if (*++s == '-') {
3200 ++s;
3201 sv = newSVpvs("no Devel::");
3202 } else {
3203 sv = newSVpvs("use Devel::");
3204 }
3205
3206 start = s;
3207 end = s + strlen(s);
f85893a1 3208
b19934fb 3209 /* We now allow -d:Module=Foo,Bar and -d:-Module */
0eb30aeb 3210 while(isWORDCHAR(*s) || *s==':') ++s;
70c94a19 3211 if (*s != '=')
f85893a1 3212 sv_catpvn(sv, start, end - start);
70c94a19
RR		 3213 else {
3214 sv_catpvn(sv, start, s-start);
95a2b409
RGS		 3215 /* Don't use NUL as q// delimiter here, this string goes in the
3216 * environment. */
3217 Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s);
70c94a19 3218 }
f85893a1 3219 s = end;
184f32ec 3220 my_setenv("PERL5DB", SvPV_nolen_const(sv));
c4db126b 3221 SvREFCNT_dec(sv);
4633a7c4 3222 }
ed094faf 3223 if (!PL_perldb) {
3280af22 3224 PL_perldb = PERLDB_ALL;
a0d0e21e 3225 init_debugger();
ed094faf 3226 }
79072805
LW		 3227 return s;
3228 case 'D':
0453d815 3229 {
79072805 3230#ifdef DEBUGGING
f20b2998 3231 forbid_setid('D', FALSE);
b4ab917c 3232 s++;
dd374669 3233 PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG;
12a43e32 3234#else /* !DEBUGGING */
0453d815 3235 if (ckWARN_d(WARN_DEBUGGING))
9014280d 3236 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
e6e64d9b 3237 "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n");
0eb30aeb 3238 for (s++; isWORDCHAR(*s); s++) ;
79072805 3239#endif
79072805 3240 return s;
2b5060ae 3241 NOT_REACHED; /* NOTREACHED */
0453d815 3242 }
4633a7c4 3243 case 'h':
b6f82619 3244 usage();
2b5060ae
DM		 3245 NOT_REACHED; /* NOTREACHED */
3246
79072805 3247 case 'i':
43c5f42d 3248 Safefree(PL_inplace);
c030f24b
GH		 3249#if defined(__CYGWIN__) /* do backup extension automagically */
3250 if (*(s+1) == '\0') {
c86a4f2e 3251 PL_inplace = savepvs(".bak");
c030f24b
GH		 3252 return s+1;
3253 }
3254#endif /* __CYGWIN__ */
5ef5d758 3255 {
d4c19fe8 3256 const char * const start = ++s;
5ef5d758
NC		 3257 while (*s && !isSPACE(*s))
3258 ++s;
3259
3260 PL_inplace = savepvn(start, s - start);
3261 }
7b8d334a 3262 if (*s) {
5ef5d758 3263 ++s;
7b8d334a 3264 if (*s == '-') /* Additional switches on #! line. */
5ef5d758 3265 s++;
7b8d334a 3266 }
fb73857a 3267 return s;
4e49a025 3268 case 'I': /* -I handled both here and in parse_body() */
f20b2998 3269 forbid_setid('I', FALSE);
fb73857a 3270 ++s;
3271 while (*s && isSPACE(*s))
3272 ++s;
3273 if (*s) {
c7030b81 3274 const char *e, *p;
0df16ed7
GS		 3275 p = s;
3276 /* ignore trailing spaces (possibly followed by other switches) */
3277 do {
3278 for (e = p; *e && !isSPACE(*e); e++) ;
3279 p = e;
3280 while (isSPACE(*p))
3281 p++;
3282 } while (*p && *p != '-');
55b4bc1c 3283 incpush(s, e-s,
e28f3139 3284 INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT);
0df16ed7
GS		 3285 s = p;
3286 if (*s == '-')
3287 s++;
79072805
LW		 3288 }
3289 else
a67e862a 3290 Perl_croak(aTHX_ "No directory specified for -I");
fb73857a 3291 return s;
79072805 3292 case 'l':
3280af22 3293 PL_minus_l = TRUE;
79072805 3294 s++;
7889fe52
NIS		 3295 if (PL_ors_sv) {
3296 SvREFCNT_dec(PL_ors_sv);
a0714e2c 3297 PL_ors_sv = NULL;
7889fe52 3298 }
79072805 3299 if (isDIGIT(*s)) {
53305cf1 3300 I32 flags = 0;
a3b680e6 3301 STRLEN numlen;
396482e1 3302 PL_ors_sv = newSVpvs("\n");
53305cf1
NC		 3303 numlen = 3 + (*s == '0');
3304 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
79072805
LW		 3305 s += numlen;
3306 }
3307 else {
8bfdd7d9 3308 if (RsPARA(PL_rs)) {
396482e1 3309 PL_ors_sv = newSVpvs("\n\n");
7889fe52
NIS		 3310 }
3311 else {
8bfdd7d9 3312 PL_ors_sv = newSVsv(PL_rs);
c07a80fd 3313 }
79072805
LW		 3314 }
3315 return s;
1a30305b 3316 case 'M':
f20b2998 3317 forbid_setid('M', FALSE); /* XXX ? */
924ba076 3318 /* FALLTHROUGH */
1a30305b 3319 case 'm':
f20b2998 3320 forbid_setid('m', FALSE); /* XXX ? */
1a30305b 3321 if (*++s) {
c7030b81 3322 const char *start;
b64cb68c 3323 const char *end;
11343788 3324 SV *sv;
e1ec3a88 3325 const char *use = "use ";
0544e6df 3326 bool colon = FALSE;
a5f75d66 3327 /* -M-foo == 'no foo' */
d0043bd1
NC		 3328 /* Leading space on " no " is deliberate, to make both
3329 possibilities the same length. */
3330 if (*s == '-') { use = " no "; ++s; }
3331 sv = newSVpvn(use,4);
a5f75d66 3332 start = s;
1a30305b 3333 /* We allow -M'Module qw(Foo Bar)' */
0eb30aeb 3334 while(isWORDCHAR(*s) || *s==':') {
0544e6df
RB		 3335 if( *s++ == ':' ) {
3336 if( *s == ':' )
3337 s++;
3338 else
3339 colon = TRUE;
3340 }
3341 }
3342 if (s == start)
3343 Perl_croak(aTHX_ "Module name required with -%c option",
3344 option);
3345 if (colon)
3346 Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
3347 "contains single ':'",
63da6837 3348 (int)(s - start), start, option);
b64cb68c 3349 end = s + strlen(s);
c07a80fd 3350 if (*s != '=') {
b64cb68c 3351 sv_catpvn(sv, start, end - start);
0544e6df 3352 if (option == 'm') {
c07a80fd 3353 if (*s != '\0')
cea2e8a9 3354 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
396482e1 3355 sv_catpvs( sv, " ()");
c07a80fd 3356 }
3357 } else {
11343788 3358 sv_catpvn(sv, start, s-start);
b64cb68c
NC		 3359 /* Use NUL as q''-delimiter. */
3360 sv_catpvs(sv, " split(/,/,q\0");
3361 ++s;
3362 sv_catpvn(sv, s, end - s);
396482e1 3363 sv_catpvs(sv, "\0)");
c07a80fd 3364 }
b64cb68c 3365 s = end;
29a861e7 3366 Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
1a30305b 3367 }
3368 else
0544e6df 3369 Perl_croak(aTHX_ "Missing argument to -%c", option);
1a30305b 3370 return s;
79072805 3371 case 'n':
3280af22 3372 PL_minus_n = TRUE;
79072805
LW		 3373 s++;
3374 return s;
3375 case 'p':
3280af22 3376 PL_minus_p = TRUE;
79072805
LW		 3377 s++;
3378 return s;
3379 case 's':
f20b2998 3380 forbid_setid('s', FALSE);
3280af22 3381 PL_doswitches = TRUE;
79072805
LW		 3382 s++;
3383 return s;
6537fe72 3384 case 't':
27a6968b 3385 case 'T':
dc6d7f5c 3386#if defined(SILENT_NO_TAINT_SUPPORT)
284167a5 3387 /* silently ignore */
dc6d7f5c 3388#elif defined(NO_TAINT_SUPPORT)
3231f579 3389 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
S		 3390 "Cowardly refusing to run with -t or -T flags");
3391#else
3392 if (!TAINTING_get)
27a6968b 3393 TOO_LATE_FOR(*s);
284167a5 3394#endif
6537fe72 3395 s++;
463ee0b2 3396 return s;
79072805 3397 case 'u':
3280af22 3398 PL_do_undump = TRUE;
79072805
LW		 3399 s++;
3400 return s;
3401 case 'U':
3280af22 3402 PL_unsafe = TRUE;
79072805
LW		 3403 s++;
3404 return s;
3405 case 'v':
c4bc78d9
NC		 3406 minus_v();
3407 case 'w':
3408 if (! (PL_dowarn & G_WARN_ALL_MASK)) {
3409 PL_dowarn |= G_WARN_ON;
3410 }
3411 s++;
3412 return s;
3413 case 'W':
3414 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
3415 if (!specialWARN(PL_compiling.cop_warnings))
3416 PerlMemShared_free(PL_compiling.cop_warnings);
3417 PL_compiling.cop_warnings = pWARN_ALL ;
3418 s++;
3419 return s;
3420 case 'X':
3421 PL_dowarn = G_WARN_ALL_OFF;
3422 if (!specialWARN(PL_compiling.cop_warnings))
3423 PerlMemShared_free(PL_compiling.cop_warnings);
3424 PL_compiling.cop_warnings = pWARN_NONE ;
3425 s++;
3426 return s;
3427 case '*':
3428 case ' ':
3429 while( *s == ' ' )
3430 ++s;
3431 if (s[0] == '-') /* Additional switches on #! line. */
3432 return s+1;
3433 break;
3434 case '-':
3435 case 0:
3436#if defined(WIN32) || !defined(PERL_STRICT_CR)
3437 case '\r':
3438#endif
3439 case '\n':
3440 case '\t':
3441 break;
3442#ifdef ALTERNATE_SHEBANG
3443 case 'S': /* OS/2 needs -S on "extproc" line. */
3444 break;
3445#endif
4bb78d63
CB		 3446 case 'e': case 'f': case 'x': case 'E':
3447#ifndef ALTERNATE_SHEBANG
3448 case 'S':
3449#endif
3450 case 'V':
c4bc78d9 3451 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
b7e077d0
FC		 3452 default:
3453 Perl_croak(aTHX_
3454 "Unrecognized switch: -%.1s (-h will show valid options)",s
3455 );
c4bc78d9
NC		 3456 }
3457 return NULL;
3458}
3459
3460
3461STATIC void
3462S_minus_v(pTHX)
3463{
fc3381af 3464 PerlIO * PIO_stdout;
46807d8e 3465 {
709aee94
DD		 3466 const char * const level_str = "v" PERL_VERSION_STRING;
3467 const STRLEN level_len = sizeof("v" PERL_VERSION_STRING)-1;
46807d8e 3468#ifdef PERL_PATCHNUM
709aee94 3469 SV* level;
23d483e2 3470# ifdef PERL_GIT_UNCOMMITTED_CHANGES
709aee94 3471 static const char num [] = PERL_PATCHNUM "*";
23d483e2 3472# else
709aee94 3473 static const char num [] = PERL_PATCHNUM;
23d483e2 3474# endif
fc3381af 3475 {
709aee94
DD		 3476 const STRLEN num_len = sizeof(num)-1;
3477 /* A very advanced compiler would fold away the strnEQ
3478 and this whole conditional, but most (all?) won't do it.
3479 SV level could also be replaced by with preprocessor
3480 catenation.
3481 */
3482 if (num_len >= level_len && strnEQ(num,level_str,level_len)) {
3483 /* per 46807d8e80, PERL_PATCHNUM is outside of the control
3484 of the interp so it might contain format characters
3485 */
3486 level = newSVpvn(num, num_len);
fc3381af 3487 } else {
709aee94 3488 level = Perl_newSVpvf_nocontext("%s (%s)", level_str, num);
fc3381af 3489 }
46807d8e 3490 }
709aee94
DD		 3491#else
3492 SV* level = newSVpvn(level_str, level_len);
3493#endif /* #ifdef PERL_PATCHNUM */
fc3381af
DD		 3494 PIO_stdout = PerlIO_stdout();
3495 PerlIO_printf(PIO_stdout,
ded326e4
DG		 3496 "\nThis is perl " STRINGIFY(PERL_REVISION)
3497 ", version " STRINGIFY(PERL_VERSION)
3498 ", subversion " STRINGIFY(PERL_SUBVERSION)
c1f6cd39 3499 " (%"SVf") built for " ARCHNAME, SVfARG(level)
ded326e4 3500 );
709aee94 3501 SvREFCNT_dec_NN(level);
46807d8e 3502 }
fb73857a 3503#if defined(LOCAL_PATCH_COUNT)
3504 if (LOCAL_PATCH_COUNT > 0)
fc3381af 3505 PerlIO_printf(PIO_stdout,
b0e47665
GS		 3506 "\n(with %d registered patch%s, "
3507 "see perl -V for more detail)",
bb7a0f54 3508 LOCAL_PATCH_COUNT,
b0e47665 3509 (LOCAL_PATCH_COUNT!=1) ? "es" : "");
a5f75d66 3510#endif
1a30305b 3511
fc3381af 3512 PerlIO_printf(PIO_stdout,
a6f9dd1e 3513 "\n\nCopyright 1987-2015, Larry Wall\n");
79072805 3514#ifdef MSDOS
fc3381af 3515 PerlIO_printf(PIO_stdout,
b0e47665 3516 "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
55497cff 3517#endif
3518#ifdef DJGPP
fc3381af 3519 PerlIO_printf(PIO_stdout,
b0e47665
GS		 3520 "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"
3521 "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
4633a7c4 3522#endif
79072805 3523#ifdef OS2
fc3381af 3524 PerlIO_printf(PIO_stdout,
b0e47665 3525 "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
be3c0a43 3526 "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n");
79072805 3527#endif
9d116dd7 3528#ifdef OEMVS
fc3381af 3529 PerlIO_printf(PIO_stdout,
b0e47665 3530 "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
9d116dd7 3531#endif
495c5fdc 3532#ifdef __VOS__
fc3381af 3533 PerlIO_printf(PIO_stdout,
c0fcb8c5 3534 "Stratus OpenVOS port by Paul.Green@stratus.com, 1997-2013\n");
495c5fdc 3535#endif
a1a0e61e 3536#ifdef POSIX_BC
fc3381af 3537 PerlIO_printf(PIO_stdout,
b0e47665 3538 "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
a1a0e61e 3539#endif
e1caacb4 3540#ifdef UNDER_CE
fc3381af
DD		 3541 PerlIO_printf(PIO_stdout,
3542 "WINCE port by Rainer Keuchel, 2001-2002\n"
3543 "Built on " __DATE__ " " __TIME__ "\n\n");
e1caacb4
JH		 3544 wce_hitreturn();
3545#endif
a0fd4948 3546#ifdef __SYMBIAN32__
fc3381af 3547 PerlIO_printf(PIO_stdout,
27da23d5
JH		 3548 "Symbian port by Nokia, 2004-2005\n");
3549#endif
baed7233
DL		 3550#ifdef BINARY_BUILD_NOTICE
3551 BINARY_BUILD_NOTICE;
3552#endif
fc3381af 3553 PerlIO_printf(PIO_stdout,
b0e47665 3554 "\n\
79072805 3555Perl may be copied only under the terms of either the Artistic License or the\n\
3d6f292d 3556GNU General Public License, which may be found in the Perl 5 source kit.\n\n\
95103687 3557Complete documentation for Perl, including FAQ lists, should be found on\n\
a0288114 3558this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\
c9e30dd8 3559Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n");
7ca617d0 3560 my_exit(0);
79072805
LW		 3561}
3562
3563/* compliments of Tom Christiansen */
3564
3565/* unexec() can be found in the Gnu emacs distribution */
ee580363 3566/* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
79072805 3567
25bbd826
CB		 3568#ifdef VMS
3569#include <lib$routines.h>
3570#endif
3571
79072805 3572void
864dbfa3 3573Perl_my_unexec(pTHX)
79072805
LW		 3574{
3575#ifdef UNEXEC
b37c2d43
AL		 3576 SV * prog = newSVpv(BIN_EXP, 0);
3577 SV * file = newSVpv(PL_origfilename, 0);
ee580363 3578 int status = 1;
79072805
LW		 3579 extern int etext;
3580
396482e1 3581 sv_catpvs(prog, "/perl");
396482e1 3582 sv_catpvs(file, ".perldump");
79072805 3583
ee580363
GS		 3584 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
3585 /* unexec prints msg to stderr in case of failure */
6ad3d225 3586 PerlProc_exit(status);
79072805 3587#else
ddeaf645 3588 PERL_UNUSED_CONTEXT;
a5f75d66 3589# ifdef VMS
a5f75d66 3590 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
84d78eb7 3591# elif defined(WIN32) || defined(__CYGWIN__)
ddeaf645 3592 Perl_croak_nocontext("dump is not supported");
aa689395 3593# else
79072805 3594 ABORT(); /* for use with undump */
aa689395 3595# endif
a5f75d66 3596#endif
79072805
LW		 3597}
3598
cb68f92d
GS		 3599/* initialize curinterp */
3600STATIC void
cea2e8a9 3601S_init_interp(pTHX)
cb68f92d 3602{
acfe0abc 3603#ifdef MULTIPLICITY
115ff745
NC		 3604# define PERLVAR(prefix,var,type)
3605# define PERLVARA(prefix,var,n,type)
acfe0abc 3606# if defined(PERL_IMPLICIT_CONTEXT)
115ff745
NC		 3607# define PERLVARI(prefix,var,type,init) aTHX->prefix##var = init;
3608# define PERLVARIC(prefix,var,type,init) aTHX->prefix##var = init;
3967c732 3609# else
115ff745
NC		 3610# define PERLVARI(prefix,var,type,init) PERL_GET_INTERP->var = init;
3611# define PERLVARIC(prefix,var,type,init) PERL_GET_INTERP->var = init;
066ef5b5 3612# endif
acfe0abc 3613# include "intrpvar.h"
acfe0abc
GS		 3614# undef PERLVAR
3615# undef PERLVARA
3616# undef PERLVARI
3617# undef PERLVARIC
3618#else
115ff745
NC		 3619# define PERLVAR(prefix,var,type)
3620# define PERLVARA(prefix,var,n,type)
3621# define PERLVARI(prefix,var,type,init) PL_##var = init;
3622# define PERLVARIC(prefix,var,type,init) PL_##var = init;
acfe0abc 3623# include "intrpvar.h"
acfe0abc
GS		 3624# undef PERLVAR
3625# undef PERLVARA
3626# undef PERLVARI
3627# undef PERLVARIC
cb68f92d
GS		 3628#endif
3629
cb68f92d
GS		 3630}
3631
76e3520e 3632STATIC void
cea2e8a9 3633S_init_main_stash(pTHX)
79072805 3634{
463ee0b2 3635 GV *gv;
6e72f9df 3636
03d9f026 3637 PL_curstash = PL_defstash = (HV *)SvREFCNT_inc_simple_NN(newHV());
23579a14
NC		 3638 /* We know that the string "main" will be in the global shared string
3639 table, so it's a small saving to use it rather than allocate another
3640 8 bytes. */
18916d0d 3641 PL_curstname = newSVpvs_share("main");
fafc274c 3642 gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV);
23579a14
NC		 3643 /* If we hadn't caused another reference to "main" to be in the shared
3644 string table above, then it would be worth reordering these two,
3645 because otherwise all we do is delete "main" from it as a consequence
3646 of the SvREFCNT_dec, only to add it again with hv_name_set */
adbc6bb1 3647 SvREFCNT_dec(GvHV(gv));
23579a14 3648 hv_name_set(PL_defstash, "main", 4, 0);
85fbaab2 3649 GvHV(gv) = MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash));
463ee0b2 3650 SvREADONLY_on(gv);
fafc274c
NC		 3651 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL,
3652 SVt_PVAV)));
5a5094bd 3653 SvREFCNT_inc_simple_void(PL_incgv); /* Don't allow it to be freed */
3280af22 3654 GvMULTI_on(PL_incgv);
fafc274c 3655 PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */
4639d557 3656 SvREFCNT_inc_simple_void(PL_hintgv);
3280af22 3657 GvMULTI_on(PL_hintgv);
fafc274c 3658 PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV);
5a5094bd 3659 SvREFCNT_inc_simple_void(PL_defgv);
d456e3f4 3660 PL_errgv = gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV);
5a5094bd 3661 SvREFCNT_inc_simple_void(PL_errgv);
3280af22 3662 GvMULTI_on(PL_errgv);
fafc274c 3663 PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */
475b1e90 3664 SvREFCNT_inc_simple_void(PL_replgv);
3280af22 3665 GvMULTI_on(PL_replgv);
cea2e8a9 3666 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
c69033f2 3667#ifdef PERL_DONT_CREATE_GVSV
689fbe18 3668 (void)gv_SVadd(PL_errgv);
c69033f2 3669#endif
38a03e6e 3670 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
ab69dbc2 3671 CLEAR_ERRSV();
03d9f026 3672 SET_CURSTASH(PL_defstash);
11faa288 3673 CopSTASH_set(&PL_compiling, PL_defstash);
5c1737d1
NC		 3674 PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV));
3675 PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI,
3676 SVt_PVHV));
4633a7c4 3677 /* We must init $/ before switches are processed. */
64ace3f8 3678 sv_setpvs(get_sv("/", GV_ADD), "\n");
79072805
LW		 3679}
3680
8d113837
NC		 3681STATIC PerlIO *
3682S_open_script(pTHX_ const char *scriptname, bool dosearch, bool *suidscript)
79072805 3683{
fdf5d70d 3684 int fdscript = -1;
8d113837 3685 PerlIO *rsfp = NULL;
1dfef69b 3686 Stat_t tmpstatbuf;
375ed12a 3687 int fd;
1b24ed4b 3688
7918f24d
NC		 3689 PERL_ARGS_ASSERT_OPEN_SCRIPT;
3690
3280af22 3691 if (PL_e_script) {
8afc33d6 3692 PL_origfilename = savepvs("-e");
96436eeb 3693 }
6c4ab083 3694 else {
22ff3130
HS		 3695 const char *s;
3696 UV uv;
6c4ab083 3697 /* if find_script() returns, it returns a malloc()-ed value */
dd374669 3698 scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1);
6c4ab083 3699
22ff3130
HS		 3700 if (strnEQ(scriptname, "/dev/fd/", 8)
3701 && isDIGIT(scriptname[8])
3702 && grok_atoUV(scriptname + 8, &uv, &s)
3703 && uv <= PERL_INT_MAX
3704 ) {
3705 fdscript = (int)uv;
6c4ab083 3706 if (*s) {
ae3f3efd
PS		 3707 /* PSz 18 Feb 04
3708 * Tell apart "normal" usage of fdscript, e.g.
3709 * with bash on FreeBSD:
3710 * perl <( echo '#!perl -DA'; echo 'print "$0\n"')
3711 * from usage in suidperl.
3712 * Does any "normal" usage leave garbage after the number???
3713 * Is it a mistake to use a similar /dev/fd/ construct for
3714 * suidperl?
3715 */
f20b2998 3716 *suidscript = TRUE;
ae3f3efd
PS		 3717 /* PSz 20 Feb 04
3718 * Be supersafe and do some sanity-checks.
3719 * Still, can we be sure we got the right thing?
3720 */
3721 if (*s != '/') {
3722 Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s);
3723 }
3724 if (! *(s+1)) {
3725 Perl_croak(aTHX_ "Missing (suid) fd script name\n");
3726 }
6c4ab083 3727 scriptname = savepv(s + 1);
3280af22 3728 Safefree(PL_origfilename);
dd374669 3729 PL_origfilename = (char *)scriptname;
6c4ab083
GS		 3730 }
3731 }
3732 }
3733
05ec9bb3 3734 CopFILE_free(PL_curcop);
57843af0 3735 CopFILE_set(PL_curcop, PL_origfilename);
770526c1 3736 if (*PL_origfilename == '-' && PL_origfilename[1] == '\0')
dd374669 3737 scriptname = (char *)"";
fdf5d70d 3738 if (fdscript >= 0) {
8d113837 3739 rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE);
96436eeb 3740 }
79072805 3741 else if (!*scriptname) {
cdd8118e 3742 forbid_setid(0, *suidscript);
c0b3891a 3743 return NULL;
79072805 3744 }
96436eeb 3745 else {
9c12f1e5
RGS		 3746#ifdef FAKE_BIT_BUCKET
3747 /* This hack allows one not to have /dev/null (or BIT_BUCKET as it
3748 * is called) and still have the "-e" work. (Believe it or not,
3749 * a /dev/null is required for the "-e" to work because source
3750 * filter magic is used to implement it. ) This is *not* a general
3751 * replacement for a /dev/null. What we do here is create a temp
3752 * file (an empty file), open up that as the script, and then
3753 * immediately close and unlink it. Close enough for jazz. */
3754#define FAKE_BIT_BUCKET_PREFIX "/tmp/perlnull-"
3755#define FAKE_BIT_BUCKET_SUFFIX "XXXXXXXX"
3756#define FAKE_BIT_BUCKET_TEMPLATE FAKE_BIT_BUCKET_PREFIX FAKE_BIT_BUCKET_SUFFIX
3757 char tmpname[sizeof(FAKE_BIT_BUCKET_TEMPLATE)] = {
3758 FAKE_BIT_BUCKET_TEMPLATE
3759 };
3760 const char * const err = "Failed to create a fake bit bucket";
3761 if (strEQ(scriptname, BIT_BUCKET)) {
3762#ifdef HAS_MKSTEMP /* Hopefully mkstemp() is safe here. */
60f7fc1e 3763 int old_umask = umask(0600);
9c12f1e5 3764 int tmpfd = mkstemp(tmpname);
60f7fc1e 3765 umask(old_umask);
9c12f1e5
RGS		 3766 if (tmpfd > -1) {
3767 scriptname = tmpname;
3768 close(tmpfd);
3769 } else
3770 Perl_croak(aTHX_ err);
3771#else
3772# ifdef HAS_MKTEMP
3773 scriptname = mktemp(tmpname);
3774 if (!scriptname)
3775 Perl_croak(aTHX_ err);
3776# endif
3777#endif
3778 }
3779#endif
8d113837 3780 rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
9c12f1e5
RGS		 3781#ifdef FAKE_BIT_BUCKET
3782 if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX,
3783 sizeof(FAKE_BIT_BUCKET_PREFIX) - 1)
3784 && strlen(scriptname) == sizeof(tmpname) - 1) {
3785 unlink(scriptname);
3786 }
3787 scriptname = BIT_BUCKET;
3788#endif
96436eeb 3789 }
8d113837 3790 if (!rsfp) {
447218f8 3791 /* PSz 16 Sep 03 Keep neat error message */
b1681ed3
RGS		 3792 if (PL_e_script)
3793 Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno));
3794 else
3795 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
3796 CopFILE(PL_curcop), Strerror(errno));
13281fa4 3797 }
375ed12a 3798 fd = PerlIO_fileno(rsfp);
131d45a9 3799#if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC)
375ed12a
JH		 3800 if (fd >= 0) {
3801 /* ensure close-on-exec */
131d45a9 3802 if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) {
375ed12a
JH		 3803 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
3804 CopFILE(PL_curcop), Strerror(errno));
3805 }
3806 }
a7c81930 3807#endif
1dfef69b 3808
375ed12a
JH		 3809 if (fd < 0 ||
3810 (PerlLIO_fstat(fd, &tmpstatbuf) >= 0
3811 && S_ISDIR(tmpstatbuf.st_mode)))
1dfef69b
RS		 3812 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
3813 CopFILE(PL_curcop),
0c0d42ff 3814 Strerror(EISDIR));
1dfef69b 3815
8d113837 3816 return rsfp;
79072805 3817}
8d063cd8 3818
7b89560d
JH		 3819/* Mention
3820 * I_SYSSTATVFS HAS_FSTATVFS
3821 * I_SYSMOUNT
c890dc6c 3822 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
7b89560d
JH		 3823 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
3824 * here so that metaconfig picks them up. */
3825
104d25b7 3826
cc69b689 3827#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
ec2019ad 3828/* Don't even need this function. */
cc69b689 3829#else
ec2019ad
NC		 3830STATIC void
3831S_validate_suid(pTHX_ PerlIO *rsfp)
3832{
dfff4baf
BF		 3833 const Uid_t my_uid = PerlProc_getuid();
3834 const Uid_t my_euid = PerlProc_geteuid();
3835 const Gid_t my_gid = PerlProc_getgid();
3836 const Gid_t my_egid = PerlProc_getegid();
985213f2 3837
ac076a5c
NC		 3838 PERL_ARGS_ASSERT_VALIDATE_SUID;
3839
985213f2 3840 if (my_euid != my_uid || my_egid != my_gid) { /* (suidperl doesn't exist, in fact) */
a2e578da 3841 dVAR;
375ed12a
JH		 3842 int fd = PerlIO_fileno(rsfp);
3843 if (fd < 0) {
3844 Perl_croak(aTHX_ "Illegal suidscript");
3845 } else {
3846 if (PerlLIO_fstat(fd, &PL_statbuf) < 0) { /* may be either wrapped or real suid */
3847 Perl_croak(aTHX_ "Illegal suidscript");
3848 }
3849 }
3850 if ((my_euid != my_uid && my_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
3851 ||
3852 (my_egid != my_gid && my_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
3853 )
b28d0864 3854 if (!PL_do_undump)
cea2e8a9 3855 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
a687059c 3856FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
a687059c 3857 /* not set-id, must be wrapped */
a687059c 3858 }
79072805 3859}
cc69b689 3860#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
13281fa4 3861
76e3520e 3862STATIC void
2f9285f8 3863S_find_beginning(pTHX_ SV* linestr_sv, PerlIO *rsfp)
79072805 3864{
c7030b81 3865 const char *s;
eb578fdb 3866 const char *s2;
33b78306 3867
7918f24d
NC		 3868 PERL_ARGS_ASSERT_FIND_BEGINNING;
3869
33b78306
LW		 3870 /* skip forward in input to the real script? */
3871
737c24fc 3872 do {
2f9285f8 3873 if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL)
cea2e8a9 3874 Perl_croak(aTHX_ "No Perl script found in input\n");
4f0c37ba 3875 s2 = s;
737c24fc
Z		 3876 } while (!(*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))));
3877 PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
3878 while (*s && !(isSPACE (*s) || *s == '#')) s++;
3879 s2 = s;
3880 while (*s == ' ' || *s == '\t') s++;
3881 if (*s++ == '-') {
3882 while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.'
3883 || s2[-1] == '_') s2--;
3884 if (strnEQ(s2-4,"perl",4))
3885 while ((s = moreswitches(s)))
3886 ;
83025b21
LW		 3887 }
3888}
3889
afe37c7d 3890
76e3520e 3891STATIC void
cea2e8a9 3892S_init_ids(pTHX)
352d5a3a 3893{
284167a5
S		 3894 /* no need to do anything here any more if we don't
3895 * do tainting. */
dc6d7f5c 3896#ifndef NO_TAINT_SUPPORT
dfff4baf
BF		 3897 const Uid_t my_uid = PerlProc_getuid();
3898 const Uid_t my_euid = PerlProc_geteuid();
3899 const Gid_t my_gid = PerlProc_getgid();
3900 const Gid_t my_egid = PerlProc_getegid();
985213f2 3901
20b7effb
JH		 3902 PERL_UNUSED_CONTEXT;
3903
22f7c9c9 3904 /* Should not happen: */
985213f2 3905 CHECK_MALLOC_TAINT(my_uid && (my_euid != my_uid || my_egid != my_gid));
284167a5
S		 3906 TAINTING_set( TAINTING_get | (my_uid && (my_euid != my_uid || my_egid != my_gid)) );
3907#endif
ae3f3efd
PS		 3908 /* BUG */
3909 /* PSz 27 Feb 04
3910 * Should go by suidscript, not uid!=euid: why disallow
3911 * system("ls") in scripts run from setuid things?
3912 * Or, is this run before we check arguments and set suidscript?
3913 * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then?
3914 * (We never have suidscript, can we be sure to have fdscript?)
3915 * Or must then go by UID checks? See comments in forbid_setid also.
3916 */
748a9306 3917}
79072805 3918
a0643315
JH		 3919/* This is used very early in the lifetime of the program,
3920 * before even the options are parsed, so PL_tainting has
b0891165 3921 * not been initialized properly. */
af419de7 3922bool
8f42b153 3923Perl_doing_taint(int argc, char *argv[], char *envp[])
22f7c9c9 3924{
c3446a78
JH		 3925#ifndef PERL_IMPLICIT_SYS
3926 /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia
3927 * before we have an interpreter-- and the whole point of this
3928 * function is to be called at such an early stage. If you are on
3929 * a system with PERL_IMPLICIT_SYS but you do have a concept of
3930 * "tainted because running with altered effective ids', you'll
3931 * have to add your own checks somewhere in here. The two most
3932 * known samples of 'implicitness' are Win32 and NetWare, neither
3933 * of which has much of concept of 'uids'. */
dfff4baf
BF		 3934 Uid_t uid = PerlProc_getuid();
3935 Uid_t euid = PerlProc_geteuid();
3936 Gid_t gid = PerlProc_getgid();
3937 Gid_t egid = PerlProc_getegid();
6867be6d 3938 (void)envp;
22f7c9c9
JH		 3939
3940#ifdef VMS
af419de7 3941 uid |= gid << 16;
22f7c9c9
JH		 3942 euid |= egid << 16;
3943#endif
3944 if (uid && (euid != uid || egid != gid))
3945 return 1;
c3446a78 3946#endif /* !PERL_IMPLICIT_SYS */
af419de7
JH		 3947 /* This is a really primitive check; environment gets ignored only
3948 * if -T are the first chars together; otherwise one gets
3949 * "Too late" message. */
22f7c9c9 3950 if ( argc > 1 && argv[1][0] == '-'
305b8651 3951 && isALPHA_FOLD_EQ(argv[1][1], 't'))
22f7c9c9
JH		 3952 return 1;
3953 return 0;
3954}
22f7c9c9 3955
d0bafe7e
NC		 3956/* Passing the flag as a single char rather than a string is a slight space
3957 optimisation. The only message that isn't /^-.$/ is
3958 "program input from stdin", which is substituted in place of '\0', which
3959 could never be a command line flag. */
76e3520e 3960STATIC void
f20b2998 3961S_forbid_setid(pTHX_ const char flag, const bool suidscript) /* g */
bbce6d69 3962{
d0bafe7e
NC		 3963 char string[3] = "-x";
3964 const char *message = "program input from stdin";
3965
20b7effb 3966 PERL_UNUSED_CONTEXT;
d0bafe7e
NC		 3967 if (flag) {
3968 string[1] = flag;
3969 message = string;
3970 }
3971
ae3f3efd 3972#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
985213f2 3973 if (PerlProc_getuid() != PerlProc_geteuid())
d0bafe7e 3974 Perl_croak(aTHX_ "No %s allowed while running setuid", message);
985213f2 3975 if (PerlProc_getgid() != PerlProc_getegid())
d0bafe7e 3976 Perl_croak(aTHX_ "No %s allowed while running setgid", message);
ae3f3efd 3977#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
f20b2998 3978 if (suidscript)
d0bafe7e 3979 Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message);
bbce6d69 3980}
3981
1ee4443e 3982void
5b235299
NC		 3983Perl_init_dbargs(pTHX)
3984{
3985 AV *const args = PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args",
3986 GV_ADDMULTI,
3987 SVt_PVAV))));
3988
3989 if (AvREAL(args)) {
3990 /* Someone has already created it.
3991 It might have entries, and if we just turn off AvREAL(), they will
3992 "leak" until global destruction. */
3993 av_clear(args);
3df49e2a 3994 if (SvTIED_mg((const SV *)args, PERL_MAGIC_tied))
7355df7e 3995 Perl_croak(aTHX_ "Cannot set tied @DB::args");
5b235299 3996 }
af80dd86 3997 AvREIFY_only(PL_dbargs);
5b235299
NC		 3998}
3999
4000void
1ee4443e 4001Perl_init_debugger(pTHX)
748a9306 4002{
c4420975 4003 HV * const ostash = PL_curstash;
a6d69523 4004 MAGIC *mg;
1ee4443e 4005
03d9f026 4006 PL_curstash = (HV *)SvREFCNT_inc_simple(PL_debstash);
5b235299
NC		 4007
4008 Perl_init_dbargs(aTHX);
8cece913
FC		 4009 PL_DBgv = MUTABLE_GV(
4010 SvREFCNT_inc(gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV))
4011 );
4012 PL_DBline = MUTABLE_GV(
4013 SvREFCNT_inc(gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV))
4014 );
4015 PL_DBsub = MUTABLE_GV(SvREFCNT_inc(
4016 gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV))
4017 ));
5c1737d1 4018 PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV)));
4c0f30d6
NC		 4019 if (!SvIOK(PL_DBsingle))
4020 sv_setiv(PL_DBsingle, 0);
a6d69523
TC		 4021 mg = sv_magicext(PL_DBsingle, NULL, PERL_MAGIC_debugvar, &PL_vtbl_debugvar, 0, 0);
4022 mg->mg_private = DBVARMG_SINGLE;
4023 SvSETMAGIC(PL_DBsingle);
4024
5c1737d1 4025 PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV)));
4c0f30d6
NC		 4026 if (!SvIOK(PL_DBtrace))
4027 sv_setiv(PL_DBtrace, 0);
a6d69523
TC		 4028 mg = sv_magicext(PL_DBtrace, NULL, PERL_MAGIC_debugvar, &PL_vtbl_debugvar, 0, 0);
4029 mg->mg_private = DBVARMG_TRACE;
4030 SvSETMAGIC(PL_DBtrace);
4031
5c1737d1 4032 PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV)));
4c0f30d6
NC		 4033 if (!SvIOK(PL_DBsignal))
4034 sv_setiv(PL_DBsignal, 0);
a6d69523
TC		 4035 mg = sv_magicext(PL_DBsignal, NULL, PERL_MAGIC_debugvar, &PL_vtbl_debugvar, 0, 0);
4036 mg->mg_private = DBVARMG_SIGNAL;
4037 SvSETMAGIC(PL_DBsignal);
4038
03d9f026 4039 SvREFCNT_dec(PL_curstash);
1ee4443e 4040 PL_curstash = ostash;
352d5a3a
LW		 4041}
4042
2ce36478
SM		 4043#ifndef STRESS_REALLOC
4044#define REASONABLE(size) (size)
0ff72558 4045#define REASONABLE_but_at_least(size,min) (size)
2ce36478
SM		 4046#else
4047#define REASONABLE(size) (1) /* unreasonable */
0ff72558 4048#define REASONABLE_but_at_least(size,min) (min)
2ce36478
SM		 4049#endif
4050
11343788 4051void
cea2e8a9 4052Perl_init_stacks(pTHX)
79072805 4053{
e336de0d 4054 /* start with 128-item stack and 8K cxstack */
3280af22 4055 PL_curstackinfo = new_stackinfo(REASONABLE(128),
e336de0d 4056 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
3280af22
NIS		 4057 PL_curstackinfo->si_type = PERLSI_MAIN;
4058 PL_curstack = PL_curstackinfo->si_stack;
4059 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
79072805 4060
3280af22
NIS		 4061 PL_stack_base = AvARRAY(PL_curstack);
4062 PL_stack_sp = PL_stack_base;
4063 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
8990e307 4064
a02a5408 4065 Newx(PL_tmps_stack,REASONABLE(128),SV*);
3280af22
NIS		 4066 PL_tmps_floor = -1;
4067 PL_tmps_ix = -1;
4068 PL_tmps_max = REASONABLE(128);
8990e307 4069
a02a5408 4070 Newx(PL_markstack,REASONABLE(32),I32);
3280af22
NIS		 4071 PL_markstack_ptr = PL_markstack;
4072 PL_markstack_max = PL_markstack + REASONABLE(32);
79072805 4073
ce2f7c3b 4074 SET_MARK_OFFSET;
e336de0d 4075
a02a5408 4076 Newx(PL_scopestack,REASONABLE(32),I32);
d343c3ef
GG		 4077#ifdef DEBUGGING
4078 Newx(PL_scopestack_name,REASONABLE(32),const char*);
4079#endif
3280af22
NIS		 4080 PL_scopestack_ix = 0;
4081 PL_scopestack_max = REASONABLE(32);
79072805 4082
0ff72558 4083 Newx(PL_savestack,REASONABLE_but_at_least(128,SS_MAXPUSH),ANY);
3280af22 4084 PL_savestack_ix = 0;
0ff72558 4085 PL_savestack_max = REASONABLE_but_at_least(128,SS_MAXPUSH);
378cc40b 4086}
33b78306 4087
2ce36478
SM		 4088#undef REASONABLE
4089
76e3520e 4090STATIC void
cea2e8a9 4091S_nuke_stacks(pTHX)
6e72f9df 4092{
3280af22
NIS		 4093 while (PL_curstackinfo->si_next)
4094 PL_curstackinfo = PL_curstackinfo->si_next;
4095 while (PL_curstackinfo) {
4096 PERL_SI *p = PL_curstackinfo->si_prev;
bac4b2ad 4097 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3280af22
NIS		 4098 Safefree(PL_curstackinfo->si_cxstack);
4099 Safefree(PL_curstackinfo);
4100 PL_curstackinfo = p;
e336de0d 4101 }
3280af22
NIS		 4102 Safefree(PL_tmps_stack);
4103 Safefree(PL_markstack);
4104 Safefree(PL_scopestack);
58780814
GG		 4105#ifdef DEBUGGING
4106 Safefree(PL_scopestack_name);
4107#endif
3280af22 4108 Safefree(PL_savestack);
378cc40b 4109}
33b78306 4110
74e8ce34
NC		 4111void
4112Perl_populate_isa(pTHX_ const char *name, STRLEN len, ...)
4113{
4114 GV *const gv = gv_fetchpvn(name, len, GV_ADD | GV_ADDMULTI, SVt_PVAV);
4115 AV *const isa = GvAVn(gv);
4116 va_list args;
4117
4118 PERL_ARGS_ASSERT_POPULATE_ISA;
4119
4120 if(AvFILLp(isa) != -1)
4121 return;
4122
4123 /* NOTE: No support for tied ISA */
4124
4125 va_start(args, len);
4126 do {
4127 const char *const parent = va_arg(args, const char*);
4128 size_t parent_len;
4129
4130 if (!parent)
4131 break;
4132 parent_len = va_arg(args, size_t);
4133
4134 /* Arguments are supplied with a trailing :: */
4135 assert(parent_len > 2);
4136 assert(parent[parent_len - 1] == ':');
4137 assert(parent[parent_len - 2] == ':');
4138 av_push(isa, newSVpvn(parent, parent_len - 2));
4139 (void) gv_fetchpvn(parent, parent_len, GV_ADD, SVt_PVGV);
4140 } while (1);
4141 va_end(args);
4142}
4143
8990e307 4144
76e3520e 4145STATIC void
cea2e8a9 4146S_init_predump_symbols(pTHX)
45d8adaa 4147{
93a17b20 4148 GV *tmpgv;
af8c498a 4149 IO *io;
79072805 4150
64ace3f8 4151 sv_setpvs(get_sv("\"", GV_ADD), " ");
e23d9e2f
CS		 4152 PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV));
4153
d963bf01
NC		 4154
4155 /* Historically, PVIOs were blessed into IO::Handle, unless
4156 FileHandle was loaded, in which case they were blessed into
4157 that. Action at a distance.
4158 However, if we simply bless into IO::Handle, we break code
4159 that assumes that PVIOs will have (among others) a seek
4160 method. IO::File inherits from IO::Handle and IO::Seekable,
4161 and provides the needed methods. But if we simply bless into
4162 it, then we break code that assumed that by loading
4163 IO::Handle, *it* would work.
4164 So a compromise is to set up the correct @IO::File::ISA,
4165 so that code that does C<use IO::Handle>; will still work.
4166 */
4167
74e8ce34
NC		 4168 Perl_populate_isa(aTHX_ STR_WITH_LEN("IO::File::ISA"),
4169 STR_WITH_LEN("IO::Handle::"),
4170 STR_WITH_LEN("IO::Seekable::"),
4171 STR_WITH_LEN("Exporter::"),
4172 NULL);
d963bf01 4173
fafc274c 4174 PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO);
3280af22 4175 GvMULTI_on(PL_stdingv);
af8c498a 4176 io = GvIOp(PL_stdingv);
a04651f4 4177 IoTYPE(io) = IoTYPE_RDONLY;
af8c498a 4178 IoIFP(io) = PerlIO_stdin();
fafc274c 4179 tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV);
a5f75d66 4180 GvMULTI_on(tmpgv);
a45c7426 4181 GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
79072805 4182
fafc274c 4183 tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
a5f75d66 4184 GvMULTI_on(tmpgv);
af8c498a 4185 io = GvIOp(tmpgv);
a04651f4 4186 IoTYPE(io) = IoTYPE_WRONLY;
af8c498a 4187 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
4633a7c4 4188 setdefout(tmpgv);
fafc274c 4189 tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV);
a5f75d66 4190 GvMULTI_on(tmpgv);
a45c7426 4191 GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
79072805 4192
fafc274c 4193 PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO);
bf49b057
GS		 4194 GvMULTI_on(PL_stderrgv);
4195 io = GvIOp(PL_stderrgv);
a04651f4 4196 IoTYPE(io) = IoTYPE_WRONLY;
af8c498a 4197 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
fafc274c 4198 tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV);
a5f75d66 4199 GvMULTI_on(tmpgv);
a45c7426 4200 GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
79072805 4201
de61bf2a 4202 PL_statname = newSVpvs(""); /* last filename we did stat on */
79072805 4203}
33b78306 4204
a11ec5a9 4205void
5aaab254 4206Perl_init_argv_symbols(pTHX_ int argc, char **argv)
33b78306 4207{
7918f24d
NC		 4208 PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS;
4209
79072805 4210 argc--,argv++; /* skip name of script */
3280af22 4211 if (PL_doswitches) {
79072805 4212 for (; argc > 0 && **argv == '-'; argc--,argv++) {
aec46f14 4213 char *s;
79072805
LW		 4214 if (!argv[0][1])
4215 break;
379d538a 4216 if (argv[0][1] == '-' && !argv[0][2]) {
79072805
LW		 4217 argc--,argv++;
4218 break;
4219 }
155aba94 4220 if ((s = strchr(argv[0], '='))) {
b3d904f3
NC		 4221 const char *const start_name = argv[0] + 1;
4222 sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name,
4223 TRUE, SVt_PV)), s + 1);
79072805
LW		 4224 }
4225 else
71315bf2 4226 sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1);
fe14fcc3 4227 }
79072805 4228 }
fafc274c 4229 if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) {
722fa0e9 4230 SvREFCNT_inc_simple_void_NN(PL_argvgv);
a11ec5a9 4231 GvMULTI_on(PL_argvgv);
a11ec5a9
RGS		 4232 av_clear(GvAVn(PL_argvgv));
4233 for (; argc > 0; argc--,argv++) {
aec46f14 4234 SV * const sv = newSVpv(argv[0],0);
b188953e 4235 av_push(GvAV(PL_argvgv),sv);
ce81ff12
JH		 4236 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
4237 if (PL_unicode & PERL_UNICODE_ARGV_FLAG)
4238 SvUTF8_on(sv);
4239 }
a05d7ebb
JH		 4240 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */
4241 (void)sv_utf8_decode(sv);
a11ec5a9
RGS		 4242 }
4243 }
82f96200
JL		 4244
4245 if (PL_inplace && (!PL_argvgv || AvFILL(GvAV(PL_argvgv)) == -1))
4246 Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE),
4247 "-i used with no filenames on the command line, "
4248 "reading from STDIN");
a11ec5a9
RGS		 4249}
4250
4251STATIC void
5aaab254 4252S_init_postdump_symbols(pTHX_ int argc, char **argv, char **env)
a11ec5a9 4253{
20b7effb 4254#ifdef USE_ITHREADS
27da23d5 4255 dVAR;
20b7effb 4256#endif
a11ec5a9 4257 GV* tmpgv;
a11ec5a9 4258
7918f24d
NC		 4259 PERL_ARGS_ASSERT_INIT_POSTDUMP_SYMBOLS;
4260
f2da823f 4261 PL_toptarget = newSV_type(SVt_PVIV);
76f68e9b 4262 sv_setpvs(PL_toptarget, "");
f2da823f 4263 PL_bodytarget = newSV_type(SVt_PVIV);
76f68e9b 4264 sv_setpvs(PL_bodytarget, "");
3280af22 4265 PL_formtarget = PL_bodytarget;
79072805 4266
bbce6d69 4267 TAINT;
a11ec5a9
RGS		 4268
4269 init_argv_symbols(argc,argv);
4270
fafc274c 4271 if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) {
3280af22 4272 sv_setpv(GvSV(tmpgv),PL_origfilename);
79072805 4273 }
fafc274c 4274 if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) {
79072805 4275 HV *hv;
e17132c1 4276 bool env_is_not_environ;
cf93a474 4277 SvREFCNT_inc_simple_void_NN(PL_envgv);
3280af22
NIS		 4278 GvMULTI_on(PL_envgv);
4279 hv = GvHVn(PL_envgv);
a0714e2c 4280 hv_magic(hv, NULL, PERL_MAGIC_env);
2f42fcb0 4281#ifndef PERL_MICRO
fa6a1c44 4282#ifdef USE_ENVIRON_ARRAY
4633a7c4
LW		 4283 /* Note that if the supplied env parameter is actually a copy
4284 of the global environ then it may now point to free'd memory
4285 if the environment has been modified since. To avoid this
4286 problem we treat env==NULL as meaning 'use the default'
4287 */
4288 if (!env)
4289 env = environ;
e17132c1
JD		 4290 env_is_not_environ = env != environ;
4291 if (env_is_not_environ
4efc5df6
GS		 4292# ifdef USE_ITHREADS
4293 && PL_curinterp == aTHX
4294# endif
4295 )
4296 {
bd61b366 4297 environ[0] = NULL;
4efc5df6 4298 }
9b4eeda5 4299 if (env) {
9d27dca9 4300 char *s, *old_var;
27da23d5 4301 SV *sv;
764df951 4302 for (; *env; env++) {
9d27dca9
MT		 4303 old_var = *env;
4304
4305 if (!(s = strchr(old_var,'=')) || s == old_var)
79072805 4306 continue;
9d27dca9 4307
7da0e383 4308#if defined(MSDOS) && !defined(DJGPP)
61968511 4309 *s = '\0';
9d27dca9 4310 (void)strupr(old_var);
61968511 4311 *s = '=';
137443ea 4312#endif
61968511 4313 sv = newSVpv(s+1, 0);
9d27dca9 4314 (void)hv_store(hv, old_var, s - old_var, sv, 0);
e17132c1 4315 if (env_is_not_environ)
61968511 4316 mg_set(sv);
764df951 4317 }
9b4eeda5 4318 }
103a7189 4319#endif /* USE_ENVIRON_ARRAY */
2f42fcb0 4320#endif /* !PERL_MICRO */
79072805 4321 }
bbce6d69 4322 TAINT_NOT;
2710853f
MJD		 4323
4324 /* touch @F array to prevent spurious warnings 20020415 MJD */
4325 if (PL_minus_a) {
cbfd0a87 4326 (void) get_av("main::F", GV_ADD | GV_ADDMULTI);
2710853f 4327 }
33b78306 4328}
34de22dd 4329
76e3520e 4330STATIC void
2cace6ac 4331S_init_perllib(pTHX)
34de22dd 4332{
32910c7a 4333#ifndef VMS
929e5b34 4334 const char *perl5lib = NULL;
32910c7a 4335#endif
35ba5ce9 4336 const char *s;
a7560424 4337#if defined(WIN32) && !defined(PERL_IS_MINIPERL)
e6a0bbf8
NC		 4338 STRLEN len;
4339#endif
4340
284167a5 4341 if (!TAINTING_get) {
552a7a9b 4342#ifndef VMS
32910c7a 4343 perl5lib = PerlEnv_getenv("PERL5LIB");
88f5bc07
AB		 4344/*
4345 * It isn't possible to delete an environment variable with
42a3dd3a
RGS		 4346 * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that
4347 * case we treat PERL5LIB as undefined if it has a zero-length value.
88f5bc07
AB		 4348 */
4349#if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV)
32910c7a 4350 if (perl5lib && *perl5lib != '\0')
88f5bc07 4351#else
32910c7a 4352 if (perl5lib)
88f5bc07 4353#endif
32910c7a 4354 incpush_use_sep(perl5lib, 0, INCPUSH_ADD_SUB_DIRS);
2cace6ac 4355 else {
4705144d
NC		 4356 s = PerlEnv_getenv("PERLLIB");
4357 if (s)
50d61629 4358 incpush_use_sep(s, 0, 0);
4705144d 4359 }
552a7a9b 4360#else /* VMS */
4361 /* Treat PERL5?LIB as a possible search list logical name -- the
4362 * "natural" VMS idiom for a Unix path string. We allow each
4363 * element to be a set of |-separated directories for compatibility.
4364 */
4365 char buf[256];
4366 int idx = 0;
4367 if (my_trnlnm("PERL5LIB",buf,0))
e28f3139 4368 do {
2cace6ac 4369 incpush_use_sep(buf, 0, INCPUSH_ADD_SUB_DIRS);
e28f3139 4370 } while (my_trnlnm("PERL5LIB",buf,++idx));
f05b5874 4371 else {
e28f3139 4372 while (my_trnlnm("PERLLIB",buf,idx++))
50d61629 4373 incpush_use_sep(buf, 0, 0);
f05b5874 4374 }
552a7a9b 4375#endif /* VMS */
85e6fe83 4376 }
34de22dd 4377
b0e687f7
NC		 4378#ifndef PERL_IS_MINIPERL
4379 /* miniperl gets just -I..., the split of $ENV{PERL5LIB}, and "." in @INC
4380 (and not the architecture specific directories from $ENV{PERL5LIB}) */
4381
c90c0ff4 4382/* Use the ~-expanded versions of APPLLIB (undocumented),
826e305c 4383 SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB
df5cef82 4384*/
4633a7c4 4385#ifdef APPLLIB_EXP
be71fc8f
NC		 4386 S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP),
4387 INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
16d20bd9 4388#endif
4633a7c4 4389
65f19062 4390#ifdef SITEARCH_EXP
3b290362
GS		 4391 /* sitearch is always relative to sitelib on Windows for
4392 * DLL-based path intuition to work correctly */
4393# if !defined(WIN32)
be71fc8f
NC		 4394 S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITEARCH_EXP),
4395 INCPUSH_CAN_RELOCATE);
65f19062
GS		 4396# endif
4397#endif
4398
4633a7c4 4399#ifdef SITELIB_EXP
65f19062 4400# if defined(WIN32)
574c798a 4401 /* this picks up sitearch as well */
1c68cbf7 4402 s = PerlEnv_sitelib_path(PERL_FS_VERSION, &len);
1fa74d9f 4403 if (s)
e6a0bbf8 4404 incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
65f19062 4405# else
50d61629 4406 S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_EXP), INCPUSH_CAN_RELOCATE);
65f19062
GS		 4407# endif
4408#endif
189d1e8d 4409
65f19062 4410#ifdef PERL_VENDORARCH_EXP
4ea817c6 4411 /* vendorarch is always relative to vendorlib on Windows for
3b290362
GS		 4412 * DLL-based path intuition to work correctly */
4413# if !defined(WIN32)
be71fc8f
NC		 4414 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORARCH_EXP),
4415 INCPUSH_CAN_RELOCATE);
65f19062 4416# endif
4b03c463 4417#endif
65f19062
GS		 4418
4419#ifdef PERL_VENDORLIB_EXP
4420# if defined(WIN32)
e28f3139 4421 /* this picks up vendorarch as well */
1c68cbf7 4422 s = PerlEnv_vendorlib_path(PERL_FS_VERSION, &len);
1fa74d9f 4423 if (s)
e6a0bbf8 4424 incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
65f19062 4425# else
be71fc8f
NC		 4426 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_EXP),
4427 INCPUSH_CAN_RELOCATE);
65f19062 4428# endif
a3635516 4429#endif
65f19062 4430
b9ba2fad 4431#ifdef ARCHLIB_EXP
2cace6ac 4432 S_incpush_use_sep(aTHX_ STR_WITH_LEN(ARCHLIB_EXP), INCPUSH_CAN_RELOCATE);
b9ba2fad
NC		 4433#endif
4434
4435#ifndef PRIVLIB_EXP
4436# define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
4437#endif
4438
4439#if defined(WIN32)
1c68cbf7 4440 s = PerlEnv_lib_path(PERL_FS_VERSION, &len);
2cace6ac
NC		 4441 if (s)
4442 incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE);
b9ba2fad 4443#else
04c9eecc 4444# ifdef NETWARE
2cace6ac 4445 S_incpush_use_sep(aTHX_ PRIVLIB_EXP, 0, INCPUSH_CAN_RELOCATE);
04c9eecc 4446# else
2cace6ac 4447 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PRIVLIB_EXP), INCPUSH_CAN_RELOCATE);
04c9eecc 4448# endif
b9ba2fad
NC		 4449#endif
4450
3b777bb4 4451#ifdef PERL_OTHERLIBDIRS
1e3208d8
NC		 4452 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
4453 INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_NOT_BASEDIR
2cace6ac
NC		 4454 |INCPUSH_CAN_RELOCATE);
4455#endif
2cace6ac 4456
284167a5 4457 if (!TAINTING_get) {
2cace6ac 4458#ifndef VMS
2cace6ac
NC		 4459/*
4460 * It isn't possible to delete an environment variable with
4461 * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that
4462 * case we treat PERL5LIB as undefined if it has a zero-length value.
4463 */
4464#if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV)
32910c7a 4465 if (perl5lib && *perl5lib != '\0')
2cace6ac 4466#else
32910c7a 4467 if (perl5lib)
2cace6ac 4468#endif
32910c7a
NC		 4469 incpush_use_sep(perl5lib, 0,
4470 INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
2cace6ac
NC		 4471#else /* VMS */
4472 /* Treat PERL5?LIB as a possible search list logical name -- the
4473 * "natural" VMS idiom for a Unix path string. We allow each
4474 * element to be a set of |-separated directories for compatibility.
4475 */
4476 char buf[256];
4477 int idx = 0;
4478 if (my_trnlnm("PERL5LIB",buf,0))
4479 do {
be71fc8f
NC		 4480 incpush_use_sep(buf, 0,
4481 INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR);
2cace6ac
NC		 4482 } while (my_trnlnm("PERL5LIB",buf,++idx));
4483#endif /* VMS */
a26c0e28 4484 }
2cace6ac
NC		 4485
4486/* Use the ~-expanded versions of APPLLIB (undocumented),
826e305c 4487 SITELIB and VENDORLIB for older versions
2cace6ac
NC		 4488*/
4489#ifdef APPLLIB_EXP
be71fc8f
NC		 4490 S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS
4491 |INCPUSH_NOT_BASEDIR|INCPUSH_CAN_RELOCATE);
2cace6ac
NC		 4492#endif
4493
2cace6ac
NC		 4494#if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST)
4495 /* Search for version-specific dirs below here */
be71fc8f
NC		 4496 S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_STEM),
4497 INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
2cace6ac
NC		 4498#endif
4499
4500
4501#if defined(PERL_VENDORLIB_STEM) && defined(PERL_INC_VERSION_LIST)
4502 /* Search for version-specific dirs below here */
be71fc8f
NC		 4503 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_STEM),
4504 INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE);
2cace6ac
NC		 4505#endif
4506
4507#ifdef PERL_OTHERLIBDIRS
1e3208d8
NC		 4508 S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS),
4509 INCPUSH_ADD_OLD_VERS|INCPUSH_ADD_ARCHONLY_SUB_DIRS
4510 |INCPUSH_CAN_RELOCATE);
3b777bb4 4511#endif
b0e687f7 4512#endif /* !PERL_IS_MINIPERL */
3b777bb4 4513
284167a5 4514 if (!TAINTING_get)
55b4bc1c 4515 S_incpush(aTHX_ STR_WITH_LEN("."), 0);
774d564b 4516}
4517
739a0b84 4518#if defined(DOSISH) || defined(__SYMBIAN32__)
774d564b 4519# define PERLLIB_SEP ';'
4520#else
4521# if defined(VMS)
4522# define PERLLIB_SEP '|'
4523# else
e37778c2 4524# define PERLLIB_SEP ':'
774d564b 4525# endif
4526#endif
4527#ifndef PERLLIB_MANGLE
4528# define PERLLIB_MANGLE(s,n) (s)
ac27b0f5 4529#endif
774d564b 4530
59d6f6a4 4531#ifndef PERL_IS_MINIPERL
ad17a1ae
NC		 4532/* Push a directory onto @INC if it exists.
4533 Generate a new SV if we do this, to save needing to copy the SV we push
4534 onto @INC */
4535STATIC SV *
7ffdaae6 4536S_incpush_if_exists(pTHX_ AV *const av, SV *dir, SV *const stem)
ad17a1ae
NC		 4537{
4538 Stat_t tmpstatbuf;
7918f24d
NC		 4539
4540 PERL_ARGS_ASSERT_INCPUSH_IF_EXISTS;
4541
848ef955 4542 if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 &&
ad17a1ae 4543 S_ISDIR(tmpstatbuf.st_mode)) {
3a9a9ba7 4544 av_push(av, dir);
7ffdaae6
NC		 4545 dir = newSVsv(stem);
4546 } else {
4547 /* Truncate dir back to stem. */
4548 SvCUR_set(dir, SvCUR(stem));
ad17a1ae
NC		 4549 }
4550 return dir;
4551}
59d6f6a4 4552#endif
ad17a1ae 4553
c29067d7
CH		 4554STATIC SV *
4555S_mayberelocate(pTHX_ const char *const dir, STRLEN len, U32 flags)
774d564b 4556{
6434436b 4557 const U8 canrelocate = (U8)flags & INCPUSH_CAN_RELOCATE;
c29067d7 4558 SV *libdir;
774d564b 4559
c29067d7 4560 PERL_ARGS_ASSERT_MAYBERELOCATE;
08d0d8ab 4561 assert(len > 0);
3a9a9ba7 4562
d2898d73
EB		 4563 /* I am not convinced that this is valid when PERLLIB_MANGLE is
4564 defined to so something (in os2/os2.c), but the code has been
4565 this way, ignoring any possible changed of length, since
4566 760ac839baf413929cd31cc32ffd6dba6b781a81 (5.003_02) so I'll leave
4567 it be. */
4568 libdir = newSVpvn(PERLLIB_MANGLE(dir, len), len);
774d564b 4569
81600524 4570#ifdef VMS
db12e2d3 4571 {
81600524 4572 char *unix;
81600524
CB		 4573
4574 if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) {
4575 len = strlen(unix);
f420cce1 4576 while (len > 1 && unix[len-1] == '/') len--; /* Cosmetic */
81600524
CB		 4577 sv_usepvn(libdir,unix,len);
4578 }
4579 else
4580 PerlIO_printf(Perl_error_log,
4581 "Failed to unixify @INC element \"%s\"\n",
9dfa9235 4582 SvPV_nolen_const(libdir));
db12e2d3 4583 }
81600524
CB		 4584#endif
4585
dd374669
AL		 4586 /* Do the if() outside the #ifdef to avoid warnings about an unused
4587 parameter. */
4588 if (canrelocate) {
88fe16b2
NC		 4589#ifdef PERL_RELOCATABLE_INC
4590 /*
4591 * Relocatable include entries are marked with a leading .../
4592 *
4593 * The algorithm is
4594 * 0: Remove that leading ".../"
4595 * 1: Remove trailing executable name (anything after the last '/')
4596 * from the perl path to give a perl prefix
4597 * Then
4598 * While the @INC element starts "../" and the prefix ends with a real
4599 * directory (ie not . or ..) chop that real directory off the prefix
4600 * and the leading "../" from the @INC element. ie a logical "../"
4601 * cleanup
4602 * Finally concatenate the prefix and the remainder of the @INC element
4603 * The intent is that /usr/local/bin/perl and .../../lib/perl5
4604 * generates /usr/local/lib/perl5
4605 */
890ce7af 4606 const char *libpath = SvPVX(libdir);
88fe16b2
NC		 4607 STRLEN libpath_len = SvCUR(libdir);
4608 if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) {
4609 /* Game on! */
890ce7af 4610 SV * const caret_X = get_sv("\030", 0);
88fe16b2
NC		 4611 /* Going to use the SV just as a scratch buffer holding a C
4612 string: */
4613 SV *prefix_sv;
4614 char *prefix;
4615 char *lastslash;
4616
4617 /* $^X is *the* source of taint if tainting is on, hence
4618 SvPOK() won't be true. */
4619 assert(caret_X);
4620 assert(SvPOKp(caret_X));
a663657d
NC		 4621 prefix_sv = newSVpvn_flags(SvPVX(caret_X), SvCUR(caret_X),
4622 SvUTF8(caret_X));
88fe16b2
NC		 4623 /* Firstly take off the leading .../
4624 If all else fail we'll do the paths relative to the current
4625 directory. */
4626 sv_chop(libdir, libpath + 4);
4627 /* Don't use SvPV as we're intentionally bypassing taining,
4628 mortal copies that the mg_get of tainting creates, and
4629 corruption that seems to come via the save stack.
4630 I guess that the save stack isn't correctly set up yet. */
4631 libpath = SvPVX(libdir);
4632 libpath_len = SvCUR(libdir);
4633
4634 /* This would work more efficiently with memrchr, but as it's
4635 only a GNU extension we'd need to probe for it and
4636 implement our own. Not hard, but maybe not worth it? */
4637
4638 prefix = SvPVX(prefix_sv);
4639 lastslash = strrchr(prefix, '/');
4640
4641 /* First time in with the *lastslash = '\0' we just wipe off
4642 the trailing /perl from (say) /usr/foo/bin/perl
4643 */
4644 if (lastslash) {
4645 SV *tempsv;
4646 while ((*lastslash = '\0'), /* Do that, come what may. */
4647 (libpath_len >= 3 && memEQ(libpath, "../", 3)
4648 && (lastslash = strrchr(prefix, '/')))) {
4649 if (lastslash[1] == '\0'
4650 || (lastslash[1] == '.'
4651 && (lastslash[2] == '/' /* ends "/." */
4652 || (lastslash[2] == '/'
4653 && lastslash[3] == '/' /* or "/.." */
4654 )))) {
4655 /* Prefix ends "/" or "/." or "/..", any of which
4656 are fishy, so don't do any more logical cleanup.
4657 */
4658 break;
4659 }
4660 /* Remove leading "../" from path */
4661 libpath += 3;
4662 libpath_len -= 3;
4663 /* Next iteration round the loop removes the last
4664 directory name from prefix by writing a '\0' in
4665 the while clause. */
4666 }
4667 /* prefix has been terminated with a '\0' to the correct
4668 length. libpath points somewhere into the libdir SV.
4669 We need to join the 2 with '/' and drop the result into
4670 libdir. */
4671 tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath);
4672 SvREFCNT_dec(libdir);
4673 /* And this is the new libdir. */
4674 libdir = tempsv;
284167a5 4675 if (TAINTING_get &&
985213f2
AB		 4676 (PerlProc_getuid() != PerlProc_geteuid() ||
4677 PerlProc_getgid() != PerlProc_getegid())) {
486ec47a 4678 /* Need to taint relocated paths if running set ID */
88fe16b2
NC		 4679 SvTAINTED_on(libdir);
4680 }
4681 }
4682 SvREFCNT_dec(prefix_sv);
4683 }
88fe16b2 4684#endif
dd374669 4685 }
c29067d7 4686 return libdir;
c29067d7
CH		 4687}
4688
4689STATIC void
4690S_incpush(pTHX_ const char *const dir, STRLEN len, U32 flags)
4691{
c29067d7
CH		 4692#ifndef PERL_IS_MINIPERL
4693 const U8 using_sub_dirs
4694 = (U8)flags & (INCPUSH_ADD_VERSIONED_SUB_DIRS
4695 |INCPUSH_ADD_ARCHONLY_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
4696 const U8 add_versioned_sub_dirs
4697 = (U8)flags & INCPUSH_ADD_VERSIONED_SUB_DIRS;
4698 const U8 add_archonly_sub_dirs
4699 = (U8)flags & INCPUSH_ADD_ARCHONLY_SUB_DIRS;
4700#ifdef PERL_INC_VERSION_LIST
4701 const U8 addoldvers = (U8)flags & INCPUSH_ADD_OLD_VERS;
4702#endif
4703#endif
4704 const U8 unshift = (U8)flags & INCPUSH_UNSHIFT;
4705 const U8 push_basedir = (flags & INCPUSH_NOT_BASEDIR) ? 0 : 1;
4706 AV *const inc = GvAVn(PL_incgv);
4707
4708 PERL_ARGS_ASSERT_INCPUSH;
4709 assert(len > 0);
4710
4711 /* Could remove this vestigial extra block, if we don't mind a lot of
4712 re-indenting diff noise. */
4713 {
5a702b9a 4714 SV *const libdir = mayberelocate(dir, len, flags);
c29067d7
CH		 4715 /* Change 20189146be79a0596543441fa369c6bf7f85103f, to fix RT#6665,
4716 arranged to unshift #! line -I onto the front of @INC. However,
4717 -I can add version and architecture specific libraries, and they
4718 need to go first. The old code assumed that it was always
4719 pushing. Hence to make it work, need to push the architecture
4720 (etc) libraries onto a temporary array, then "unshift" that onto
4721 the front of @INC. */
4722#ifndef PERL_IS_MINIPERL
4723 AV *const av = (using_sub_dirs) ? (unshift ? newAV() : inc) : NULL;
c29067d7 4724
774d564b 4725 /*
4726 * BEFORE pushing libdir onto @INC we may first push version- and
4727 * archname-specific sub-directories.
4728 */
ee80e7be 4729 if (using_sub_dirs) {
5a702b9a 4730 SV *subdir = newSVsv(libdir);
29d82f8d 4731#ifdef PERL_INC_VERSION_LIST
8353b874 4732 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
c4420975
AL		 4733 const char * const incverlist[] = { PERL_INC_VERSION_LIST };
4734 const char * const *incver;
29d82f8d 4735#endif
7ffdaae6 4736
1e3208d8 4737 if (add_versioned_sub_dirs) {
9c8a64f0 4738 /* .../version/archname if -d .../version/archname */
e51b748d 4739 sv_catpvs(subdir, "/" PERL_FS_VERSION "/" ARCHNAME);
7ffdaae6 4740 subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
4b03c463 4741
9c8a64f0 4742 /* .../version if -d .../version */
e51b748d 4743 sv_catpvs(subdir, "/" PERL_FS_VERSION);
7ffdaae6 4744 subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
29d82f8d 4745 }
9c8a64f0 4746
9c8a64f0 4747#ifdef PERL_INC_VERSION_LIST
ccc2aad8 4748 if (addoldvers) {
9c8a64f0
GS		 4749 for (incver = incverlist; *incver; incver++) {
4750 /* .../xxx if -d .../xxx */
e51b748d 4751 Perl_sv_catpvf(aTHX_ subdir, "/%s", *incver);
7ffdaae6 4752 subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
9c8a64f0
GS		 4753 }
4754 }
29d82f8d 4755#endif
c992324b 4756
1e3208d8 4757 if (add_archonly_sub_dirs) {
c992324b 4758 /* .../archname if -d .../archname */
e51b748d 4759 sv_catpvs(subdir, "/" ARCHNAME);
7ffdaae6 4760 subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir);
c992324b
NC		 4761
4762 }
10cc20f6
NC		 4763
4764 assert (SvREFCNT(subdir) == 1);
4765 SvREFCNT_dec(subdir);
774d564b 4766 }
59d6f6a4 4767#endif /* !PERL_IS_MINIPERL */
20189146
RGS		 4768 /* finally add this lib directory at the end of @INC */
4769 if (unshift) {
76895e89 4770#ifdef PERL_IS_MINIPERL
c70927a6 4771 const Size_t extra = 0;
76895e89 4772#else
b9f2b683 4773 Size_t extra = av_tindex(av) + 1;
76895e89 4774#endif
a26c0e28
NC		 4775 av_unshift(inc, extra + push_basedir);
4776 if (push_basedir)
4777 av_store(inc, extra, libdir);
76895e89 4778#ifndef PERL_IS_MINIPERL
3a9a9ba7
NC		 4779 while (extra--) {
4780 /* av owns a reference, av_store() expects to be donated a
4781 reference, and av expects to be sane when it's cleared.
4782 If I wanted to be naughty and wrong, I could peek inside the
4783 implementation of av_clear(), realise that it uses
4784 SvREFCNT_dec() too, so av's array could be a run of NULLs,
4785 and so directly steal from it (with a memcpy() to inc, and
4786 then memset() to NULL them out. But people copy code from the
4787 core expecting it to be best practise, so let's use the API.
4788 Although studious readers will note that I'm not checking any
4789 return codes. */
4790 av_store(inc, extra, SvREFCNT_inc(*av_fetch(av, extra, FALSE)));
4791 }
4792 SvREFCNT_dec(av);
59d6f6a4 4793#endif
20189146 4794 }
a26c0e28 4795 else if (push_basedir) {
3a9a9ba7 4796 av_push(inc, libdir);
20189146 4797 }
a26c0e28
NC		 4798
4799 if (!push_basedir) {
4800 assert (SvREFCNT(libdir) == 1);
4801 SvREFCNT_dec(libdir);
4802 }
774d564b 4803 }
34de22dd 4804}
93a17b20 4805
55b4bc1c 4806STATIC void
50d61629 4807S_incpush_use_sep(pTHX_ const char *p, STRLEN len, U32 flags)
55b4bc1c 4808{
50d61629
NC		 4809 const char *s;
4810 const char *end;
55b4bc1c
NC		 4811 /* This logic has been broken out from S_incpush(). It may be possible to
4812 simplify it. */
4813
4705144d
NC		 4814 PERL_ARGS_ASSERT_INCPUSH_USE_SEP;
4815
f31c6eed
JD		 4816 /* perl compiled with -DPERL_RELOCATABLE_INCPUSH will ignore the len
4817 * argument to incpush_use_sep. This allows creation of relocatable
4818 * Perl distributions that patch the binary at install time. Those
4819 * distributions will have to provide their own relocation tools; this
4820 * is not a feature otherwise supported by core Perl.
4821 */
4822#ifndef PERL_RELOCATABLE_INCPUSH
50d61629 4823 if (!len)
f31c6eed 4824#endif
50d61629
NC		 4825 len = strlen(p);
4826
4827 end = p + len;
4828
55b4bc1c 4829 /* Break at all separators */
e42f52dd 4830 while ((s = (const char*)memchr(p, PERLLIB_SEP, end - p))) {
50d61629
NC		 4831 if (s == p) {
4832 /* skip any consecutive separators */
55b4bc1c 4833
55b4bc1c 4834 /* Uncomment the next line for PATH semantics */
50d61629 4835 /* But you'll need to write tests */
55b4bc1c 4836 /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */
50d61629 4837 } else {
55b4bc1c 4838 incpush(p, (STRLEN)(s - p), flags);
55b4bc1c 4839 }
50d61629 4840 p = s + 1;
55b4bc1c 4841 }
50d61629
NC		 4842 if (p != end)
4843 incpush(p, (STRLEN)(end - p), flags);
4844
55b4bc1c 4845}
199100c8 4846
93a17b20 4847void
864dbfa3 4848Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
93a17b20 4849{
971a9dd3 4850 SV *atsv;
5f40764f 4851 volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0;
312caa8e 4852 CV *cv;
22921e25 4853 STRLEN len;
6224f72b 4854 int ret;
db36c5a1 4855 dJMPENV;
93a17b20 4856
7918f24d
NC		 4857 PERL_ARGS_ASSERT_CALL_LIST;
4858
b9f2b683 4859 while (av_tindex(paramList) >= 0) {
ea726b52 4860 cv = MUTABLE_CV(av_shift(paramList));
ece599bd
RGS		 4861 if (PL_savebegin) {
4862 if (paramList == PL_beginav) {
059a8bb7 4863 /* save PL_beginav for compiler */
ad64d0ec 4864 Perl_av_create_and_push(aTHX_ &PL_beginav_save, MUTABLE_SV(cv));
ece599bd
RGS		 4865 }
4866 else if (paramList == PL_checkav) {
4867 /* save PL_checkav for compiler */
ad64d0ec 4868 Perl_av_create_and_push(aTHX_ &PL_checkav_save, MUTABLE_SV(cv));
ece599bd 4869 }
3c10abe3
AG		 4870 else if (paramList == PL_unitcheckav) {
4871 /* save PL_unitcheckav for compiler */
ad64d0ec 4872 Perl_av_create_and_push(aTHX_ &PL_unitcheckav_save, MUTABLE_SV(cv));
3c10abe3 4873 }
059a8bb7 4874 } else {
b5bbe64a 4875 SAVEFREESV(cv);
059a8bb7 4876 }
14dd3ad8 4877 JMPENV_PUSH(ret);
6224f72b 4878 switch (ret) {
312caa8e 4879 case 0:
d6f07c05 4880 CALL_LIST_BODY(cv);
971a9dd3 4881 atsv = ERRSV;
10516c54 4882 (void)SvPV_const(atsv, len);
312caa8e
CS		 4883 if (len) {
4884 PL_curcop = &PL_compiling;
57843af0 4885 CopLINE_set(PL_curcop, oldline);
312caa8e 4886 if (paramList == PL_beginav)
396482e1 4887 sv_catpvs(atsv, "BEGIN failed--compilation aborted");
312caa8e 4888 else
4f25aa18
GS		 4889 Perl_sv_catpvf(aTHX_ atsv,
4890 "%s failed--call queue aborted",
7d30b5c4 4891 paramList == PL_checkav ? "CHECK"
4f25aa18 4892 : paramList == PL_initav ? "INIT"
3c10abe3 4893 : paramList == PL_unitcheckav ? "UNITCHECK"
4f25aa18 4894 : "END");
312caa8e
CS		 4895 while (PL_scopestack_ix > oldscope)
4896 LEAVE;
14dd3ad8 4897 JMPENV_POP;
be2597df 4898 Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv));
a0d0e21e 4899 }
85e6fe83 4900 break;
6224f72b 4901 case 1:
f86702cc 4902 STATUS_ALL_FAILURE;
924ba076 4903 /* FALLTHROUGH */
6224f72b 4904 case 2:
85e6fe83 4905 /* my_exit() was called */
3280af22 4906 while (PL_scopestack_ix > oldscope)
2ae324a7 4907 LEAVE;
84902520 4908 FREETMPS;
03d9f026 4909 SET_CURSTASH(PL_defstash);
3280af22 4910 PL_curcop = &PL_compiling;
57843af0 4911 CopLINE_set(PL_curcop, oldline);
14dd3ad8 4912 JMPENV_POP;
f86702cc 4913 my_exit_jump();
e5964223 4914 NOT_REACHED; /* NOTREACHED */
6224f72b 4915 case 3:
312caa8e
CS		 4916 if (PL_restartop) {
4917 PL_curcop = &PL_compiling;
57843af0 4918 CopLINE_set(PL_curcop, oldline);
312caa8e 4919 JMPENV_JUMP(3);
85e6fe83 4920 }
5637ef5b 4921 PerlIO_printf(Perl_error_log, "panic: restartop in call_list\n");
312caa8e
CS		 4922 FREETMPS;
4923 break;
8990e307 4924 }
14dd3ad8 4925 JMPENV_POP;
93a17b20 4926 }
93a17b20 4927}
93a17b20 4928
f86702cc 4929void
864dbfa3 4930Perl_my_exit(pTHX_ U32 status)
f86702cc 4931{
6136213b
JGM		 4932 if (PL_exit_flags & PERL_EXIT_ABORT) {
4933 abort();
4934 }
4935 if (PL_exit_flags & PERL_EXIT_WARN) {
4936 PL_exit_flags |= PERL_EXIT_ABORT; /* Protect against reentrant calls */
7b0eb0b8 4937 Perl_warn(aTHX_ "Unexpected exit %lu", (unsigned long)status);
6136213b
JGM		 4938 PL_exit_flags &= ~PERL_EXIT_ABORT;
4939 }
f86702cc 4940 switch (status) {
4941 case 0:
4942 STATUS_ALL_SUCCESS;
4943 break;
4944 case 1:
4945 STATUS_ALL_FAILURE;
4946 break;
4947 default:
6ac6a52b 4948 STATUS_EXIT_SET(status);
f86702cc 4949 break;
4950 }
4951 my_exit_jump();
4952}
4953
4954void
864dbfa3 4955Perl_my_failure_exit(pTHX)
f86702cc 4956{
4957#ifdef VMS
fb38d079
JM		 4958 /* We have been called to fall on our sword. The desired exit code
4959 * should be already set in STATUS_UNIX, but could be shifted over
0968cdad
JM		 4960 * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a
4961 * that code is set.
fb38d079
JM		 4962 *
4963 * If an error code has not been set, then force the issue.
4964 */
0968cdad
JM		 4965 if (MY_POSIX_EXIT) {
4966
e08e1e1d
JM		 4967 /* According to the die_exit.t tests, if errno is non-zero */
4968 /* It should be used for the error status. */
0968cdad 4969
e08e1e1d
JM		 4970 if (errno == EVMSERR) {
4971 STATUS_NATIVE = vaxc$errno;
4972 } else {
0968cdad 4973
e08e1e1d
JM		 4974 /* According to die_exit.t tests, if the child_exit code is */
4975 /* also zero, then we need to exit with a code of 255 */
4976 if ((errno != 0) && (errno < 256))
4977 STATUS_UNIX_EXIT_SET(errno);
4978 else if (STATUS_UNIX < 255) {
0968cdad 4979 STATUS_UNIX_EXIT_SET(255);
e08e1e1d
JM		 4980 }
4981
0968cdad 4982 }
e08e1e1d
JM		 4983
4984 /* The exit code could have been set by $? or vmsish which
4985 * means that it may not have fatal set. So convert
4986 * success/warning codes to fatal with out changing
4987 * the POSIX status code. The severity makes VMS native
4988 * status handling work, while UNIX mode programs use the
4989 * the POSIX exit codes.
4990 */
4991 if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) {
4992 STATUS_NATIVE &= STS$M_COND_ID;
4993 STATUS_NATIVE |= STS$K_ERROR | STS$M_INHIB_MSG;
4994 }
0968cdad
JM		 4995 }
4996 else {
4997 /* Traditionally Perl on VMS always expects a Fatal Error. */
4998 if (vaxc$errno & 1) {
4999
5000 /* So force success status to failure */
5001 if (STATUS_NATIVE & 1)
5002 STATUS_ALL_FAILURE;
5003 }
5004 else {
5005 if (!vaxc$errno) {
5006 STATUS_UNIX = EINTR; /* In case something cares */
5007 STATUS_ALL_FAILURE;
5008 }
5009 else {
5010 int severity;
5011 STATUS_NATIVE = vaxc$errno; /* Should already be this */
5012
5013 /* Encode the severity code */
5014 severity = STATUS_NATIVE & STS$M_SEVERITY;
5015 STATUS_UNIX = (severity ? severity : 1) << 8;
5016
5017 /* Perl expects this to be a fatal error */
5018 if (severity != STS$K_SEVERE)
5019 STATUS_ALL_FAILURE;
5020 }
5021 }
5022 }
fb38d079 5023
f86702cc 5024#else
9b599b2a 5025 int exitstatus;
f86702cc 5026 if (errno & 255)
e5218da5 5027 STATUS_UNIX_SET(errno);
9b599b2a 5028 else {
e5218da5 5029 exitstatus = STATUS_UNIX >> 8;
9b599b2a 5030 if (exitstatus & 255)
e5218da5 5031 STATUS_UNIX_SET(exitstatus);
9b599b2a 5032 else
e5218da5 5033 STATUS_UNIX_SET(255);
9b599b2a 5034 }
f86702cc 5035#endif
6136213b
JGM		 5036 if (PL_exit_flags & PERL_EXIT_ABORT) {
5037 abort();
5038 }
5039 if (PL_exit_flags & PERL_EXIT_WARN) {
5040 PL_exit_flags |= PERL_EXIT_ABORT; /* Protect against reentrant calls */
7b0eb0b8 5041 Perl_warn(aTHX_ "Unexpected exit failure %ld", (long)PL_statusvalue);
6136213b
JGM		 5042 PL_exit_flags &= ~PERL_EXIT_ABORT;
5043 }
f86702cc 5044 my_exit_jump();
93a17b20
LW		 5045}
5046
76e3520e 5047STATIC void
cea2e8a9 5048S_my_exit_jump(pTHX)
f86702cc 5049{
3280af22
NIS		 5050 if (PL_e_script) {
5051 SvREFCNT_dec(PL_e_script);
a0714e2c 5052 PL_e_script = NULL;
f86702cc 5053 }
5054
3280af22 5055 POPSTACK_TO(PL_mainstack);
f97a0ef2
RH		 5056 dounwind(-1);
5057 LEAVE_SCOPE(0);
ff0cee69 5058
6224f72b 5059 JMPENV_JUMP(2);
f86702cc 5060}
873ef191 5061
0cb96387 5062static I32
acfe0abc 5063read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen)
873ef191 5064{
9d4ba2ae
AL		 5065 const char * const p = SvPVX_const(PL_e_script);
5066 const char *nl = strchr(p, '\n');
5067
5068 PERL_UNUSED_ARG(idx);
5069 PERL_UNUSED_ARG(maxlen);
dd374669 5070
3280af22 5071 nl = (nl) ? nl+1 : SvEND(PL_e_script);
7dfe3f66 5072 if (nl-p == 0) {
0cb96387 5073 filter_del(read_e_script);
873ef191 5074 return 0;
7dfe3f66 5075 }
873ef191 5076 sv_catpvn(buf_sv, p, nl-p);
3280af22 5077 sv_chop(PL_e_script, nl);
873ef191
GS		 5078 return 1;
5079}
66610fdd 5080
db6e00bd
DD		 5081/* removes boilerplate code at the end of each boot_Module xsub */
5082void
b01a1eea 5083Perl_xs_boot_epilog(pTHX_ const I32 ax)
db6e00bd
DD		 5084{
5085 if (PL_unitcheckav)
5086 call_list(PL_scopestack_ix, PL_unitcheckav);
5087 XSRETURN_YES;
5088}
5089
66610fdd 5090/*
14d04a33 5091 * ex: set ts=8 sts=4 sw=4 et:
37442d52 5092 */
Unnamed repository; edit this file 'description' to name the repository.