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In embed.fnc, reorder the symbols conditional on HAVE_INTERP_INTERP.
[perl5.git] / perl.c
CommitLineData
4b88f280 1#line 2 "perl.c"
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2/* perl.c
3 *
737f4459 4 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
2eee27d7 5 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
010d7370 6 * by Larry Wall and others
a687059c 7 *
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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 *
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11 */
12
a0d0e21e 13/*
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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
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17 *
18 * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"]
a0d0e21e 19 */
45d8adaa 20
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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
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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
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37#ifdef NETWARE
38#include "nwutil.h"
011f1a1a
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39#endif
40
2982a345
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41#ifdef USE_KERN_PROC_PATHNAME
42# include <sys/sysctl.h>
43#endif
44
ae60cb46
NC
45#ifdef USE_NSGETEXECUTABLEPATH
46# include <mach-o/dyld.h>
47#endif
48
2aa47728 49#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
bf357333
NC
50# ifdef I_SYSUIO
51# include <sys/uio.h>
52# endif
53
54union control_un {
55 struct cmsghdr cm;
56 char control[CMSG_SPACE(sizeof(int))];
57};
58
2aa47728
NC
59#endif
60
5311654c
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61#ifndef HZ
62# ifdef CLK_TCK
63# define HZ CLK_TCK
64# else
65# define HZ 60
66# endif
67#endif
68
7114a2d2 69#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO)
20ce7b12 70char *getenv (char *); /* Usually in <stdlib.h> */
54310121
PP
71#endif
72
acfe0abc 73static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
0cb96387 74
cc69b689 75#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
b24bc095 76# define validate_suid(rsfp) NOOP
cc69b689 77#else
b24bc095 78# define validate_suid(rsfp) S_validate_suid(aTHX_ rsfp)
a687059c 79#endif
8d063cd8 80
d6f07c05
AL
81#define CALL_BODY_SUB(myop) \
82 if (PL_op == (myop)) \
139d0ce6 83 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \
d6f07c05
AL
84 if (PL_op) \
85 CALLRUNOPS(aTHX);
86
87#define CALL_LIST_BODY(cv) \
88 PUSHMARK(PL_stack_sp); \
9a8aa25b 89 call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD|G_VOID);
d6f07c05 90
e6827a76 91static void
daa7d858 92S_init_tls_and_interp(PerlInterpreter *my_perl)
e6827a76 93{
27da23d5 94 dVAR;
e6827a76
NC
95 if (!PL_curinterp) {
96 PERL_SET_INTERP(my_perl);
3db8f154 97#if defined(USE_ITHREADS)
e6827a76
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98 INIT_THREADS;
99 ALLOC_THREAD_KEY;
100 PERL_SET_THX(my_perl);
101 OP_REFCNT_INIT;
e8570548 102 OP_CHECK_MUTEX_INIT;
71ad1b0c 103 HINTS_REFCNT_INIT;
e6827a76 104 MUTEX_INIT(&PL_dollarzero_mutex);
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105 MUTEX_INIT(&PL_my_ctx_mutex);
106# endif
e6827a76 107 }
c0bce9aa
NC
108#if defined(USE_ITHREADS)
109 else
110#else
111 /* This always happens for non-ithreads */
112#endif
113 {
e6827a76
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114 PERL_SET_THX(my_perl);
115 }
116}
06d86050 117
cbec8ebe
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118
119/* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */
120
121void
122Perl_sys_init(int* argc, char*** argv)
123{
4fc0badb 124 dVAR;
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125
126 PERL_ARGS_ASSERT_SYS_INIT;
127
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128 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
129 PERL_UNUSED_ARG(argv);
130 PERL_SYS_INIT_BODY(argc, argv);
131}
132
133void
134Perl_sys_init3(int* argc, char*** argv, char*** env)
135{
4fc0badb 136 dVAR;
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137
138 PERL_ARGS_ASSERT_SYS_INIT3;
139
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140 PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */
141 PERL_UNUSED_ARG(argv);
142 PERL_UNUSED_ARG(env);
143 PERL_SYS_INIT3_BODY(argc, argv, env);
144}
145
146void
d0820ef1 147Perl_sys_term()
cbec8ebe 148{
4fc0badb 149 dVAR;
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150 if (!PL_veto_cleanup) {
151 PERL_SYS_TERM_BODY();
152 }
cbec8ebe
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153}
154
155
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156#ifdef PERL_IMPLICIT_SYS
157PerlInterpreter *
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158perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
159 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
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160 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
161 struct IPerlDir* ipD, struct IPerlSock* ipS,
162 struct IPerlProc* ipP)
163{
164 PerlInterpreter *my_perl;
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165
166 PERL_ARGS_ASSERT_PERL_ALLOC_USING;
167
9f653bb5 168 /* Newx() needs interpreter, so call malloc() instead */
32e30700 169 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
e6827a76 170 S_init_tls_and_interp(my_perl);
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171 Zero(my_perl, 1, PerlInterpreter);
172 PL_Mem = ipM;
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173 PL_MemShared = ipMS;
174 PL_MemParse = ipMP;
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175 PL_Env = ipE;
176 PL_StdIO = ipStd;
177 PL_LIO = ipLIO;
178 PL_Dir = ipD;
179 PL_Sock = ipS;
180 PL_Proc = ipP;
7cb608b5 181 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
7766f137 182
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183 return my_perl;
184}
185#else
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186
187/*
ccfc67b7
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188=head1 Embedding Functions
189
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190=for apidoc perl_alloc
191
192Allocates a new Perl interpreter. See L<perlembed>.
193
194=cut
195*/
196
93a17b20 197PerlInterpreter *
cea2e8a9 198perl_alloc(void)
79072805 199{
cea2e8a9 200 PerlInterpreter *my_perl;
79072805 201
9f653bb5 202 /* Newx() needs interpreter, so call malloc() instead */
e8ee3774 203 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
ba869deb 204
e6827a76 205 S_init_tls_and_interp(my_perl);
7cb608b5 206#ifndef PERL_TRACK_MEMPOOL
07409e01 207 return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter);
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NC
208#else
209 Zero(my_perl, 1, PerlInterpreter);
210 INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl);
211 return my_perl;
212#endif
79072805 213}
32e30700 214#endif /* PERL_IMPLICIT_SYS */
79072805 215
954c1994
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216/*
217=for apidoc perl_construct
218
219Initializes a new Perl interpreter. See L<perlembed>.
220
221=cut
222*/
223
79072805 224void
0cb96387 225perl_construct(pTHXx)
79072805 226{
27da23d5 227 dVAR;
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228
229 PERL_ARGS_ASSERT_PERL_CONSTRUCT;
230
8990e307 231#ifdef MULTIPLICITY
54aff467 232 init_interp();
ac27b0f5 233 PL_perl_destruct_level = 1;
54aff467 234#else
7918f24d 235 PERL_UNUSED_ARG(my_perl);
54aff467
GS
236 if (PL_perl_destruct_level > 0)
237 init_interp();
238#endif
34caed6d
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239 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
240
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241#ifdef PERL_TRACE_OPS
242 Zero(PL_op_exec_cnt, OP_max+2, UV);
243#endif
244
0d96b528 245 init_constants();
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246
247 SvREADONLY_on(&PL_sv_placeholder);
fe54beba 248 SvREFCNT(&PL_sv_placeholder) = SvREFCNT_IMMORTAL;
34caed6d
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249
250 PL_sighandlerp = (Sighandler_t) Perl_sighandler;
ca0c25f6 251#ifdef PERL_USES_PL_PIDSTATUS
34caed6d 252 PL_pidstatus = newHV();
ca0c25f6 253#endif
79072805 254
396482e1 255 PL_rs = newSVpvs("\n");
dc92893f 256
cea2e8a9 257 init_stacks();
79072805 258
748a9306 259 init_ids();
a5f75d66 260
312caa8e 261 JMPENV_BOOTSTRAP;
f86702cc
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262 STATUS_ALL_SUCCESS;
263
0672f40e 264 init_i18nl10n(1);
36477c24 265 SET_NUMERIC_STANDARD();
0b5b802d 266
ab821d7f 267#if defined(LOCAL_PATCH_COUNT)
3280af22 268 PL_localpatches = local_patches; /* For possible -v */
ab821d7f
PP
269#endif
270
52853b95
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271#ifdef HAVE_INTERP_INTERN
272 sys_intern_init();
273#endif
274
3a1ee7e8 275 PerlIO_init(aTHX); /* Hook to IO system */
760ac839 276
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NIS
277 PL_fdpid = newAV(); /* for remembering popen pids by fd */
278 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
396482e1 279 PL_errors = newSVpvs("");
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MHM
280 sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
281 sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
282 sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
1fcf4c12 283#ifdef USE_ITHREADS
402d2eb1
NC
284 /* First entry is a list of empty elements. It needs to be initialised
285 else all hell breaks loose in S_find_uninit_var(). */
286 Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs(""));
13137afc 287 PL_regex_pad = AvARRAY(PL_regex_padav);
d4d03940 288 Newxz(PL_stashpad, PL_stashpadmax, HV *);
1fcf4c12 289#endif
e5dd39fc 290#ifdef USE_REENTRANT_API
59bd0823 291 Perl_reentrant_init(aTHX);
e5dd39fc 292#endif
7dc86639
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293#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT)
294 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0
295 * This MUST be done before any hash stores or fetches take place.
296 * If you set PL_hash_seed (and presumably also PL_hash_seed_set)
297 * yourself, it is your responsibility to provide a good random seed!
298 * You can also define PERL_HASH_SEED in compile time, see hv.h.
299 *
300 * XXX: fix this comment */
301 if (PL_hash_seed_set == FALSE) {
302 Perl_get_hash_seed(aTHX_ PL_hash_seed);
303 PL_hash_seed_set= TRUE;
304 }
305#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3d47000e
AB
306
307 /* Note that strtab is a rather special HV. Assumptions are made
308 about not iterating on it, and not adding tie magic to it.
309 It is properly deallocated in perl_destruct() */
310 PL_strtab = newHV();
311
3d47000e
AB
312 HvSHAREKEYS_off(PL_strtab); /* mandatory */
313 hv_ksplit(PL_strtab, 512);
314
a38ab475
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315 Zero(PL_sv_consts, SV_CONSTS_COUNT, SV*);
316
0631ea03
AB
317#if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
318 _dyld_lookup_and_bind
319 ("__environ", (unsigned long *) &environ_pointer, NULL);
320#endif /* environ */
321
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322#ifndef PERL_MICRO
323# ifdef USE_ENVIRON_ARRAY
0631ea03 324 PL_origenviron = environ;
2f42fcb0 325# endif
0631ea03
AB
326#endif
327
5311654c 328 /* Use sysconf(_SC_CLK_TCK) if available, if not
dbc1d986 329 * available or if the sysconf() fails, use the HZ.
27da23d5
JH
330 * The HZ if not originally defined has been by now
331 * been defined as CLK_TCK, if available. */
b6c36746 332#if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK)
5311654c
JH
333 PL_clocktick = sysconf(_SC_CLK_TCK);
334 if (PL_clocktick <= 0)
335#endif
336 PL_clocktick = HZ;
337
081fc587
AB
338 PL_stashcache = newHV();
339
e8e3635e 340 PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING);
1e8125c6 341 PL_apiversion = newSVpvs("v" PERL_API_VERSION_STRING);
d7aa5382 342
27da23d5
JH
343#ifdef HAS_MMAP
344 if (!PL_mmap_page_size) {
345#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE))
346 {
347 SETERRNO(0, SS_NORMAL);
348# ifdef _SC_PAGESIZE
349 PL_mmap_page_size = sysconf(_SC_PAGESIZE);
350# else
351 PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE);
352# endif
353 if ((long) PL_mmap_page_size < 0) {
354 if (errno) {
44f8325f 355 SV * const error = ERRSV;
d4c19fe8 356 SvUPGRADE(error, SVt_PV);
0510663f 357 Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error));
27da23d5
JH
358 }
359 else
360 Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
361 }
362 }
363#else
364# ifdef HAS_GETPAGESIZE
365 PL_mmap_page_size = getpagesize();
366# else
367# if defined(I_SYS_PARAM) && defined(PAGESIZE)
368 PL_mmap_page_size = PAGESIZE; /* compiletime, bad */
369# endif
370# endif
371#endif
372 if (PL_mmap_page_size <= 0)
373 Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
374 (IV) PL_mmap_page_size);
375 }
376#endif /* HAS_MMAP */
377
378#if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
379 PL_timesbase.tms_utime = 0;
380 PL_timesbase.tms_stime = 0;
381 PL_timesbase.tms_cutime = 0;
382 PL_timesbase.tms_cstime = 0;
383#endif
384
7d113631
NC
385 PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME));
386
a3e6e81e 387 PL_registered_mros = newHV();
9e169432
NC
388 /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */
389 HvMAX(PL_registered_mros) = 0;
a3e6e81e 390
8990e307 391 ENTER;
79072805
LW
392}
393
954c1994 394/*
62375a60
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395=for apidoc nothreadhook
396
397Stub that provides thread hook for perl_destruct when there are
398no threads.
399
400=cut
401*/
402
403int
4e9e3734 404Perl_nothreadhook(pTHX)
62375a60 405{
96a5add6 406 PERL_UNUSED_CONTEXT;
62375a60
NIS
407 return 0;
408}
409
41e4abd8
NC
410#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
411void
412Perl_dump_sv_child(pTHX_ SV *sv)
413{
414 ssize_t got;
bf357333
NC
415 const int sock = PL_dumper_fd;
416 const int debug_fd = PerlIO_fileno(Perl_debug_log);
bf357333
NC
417 union control_un control;
418 struct msghdr msg;
808ad2d0 419 struct iovec vec[2];
bf357333 420 struct cmsghdr *cmptr;
808ad2d0
NC
421 int returned_errno;
422 unsigned char buffer[256];
41e4abd8 423
7918f24d
NC
424 PERL_ARGS_ASSERT_DUMP_SV_CHILD;
425
bf357333 426 if(sock == -1 || debug_fd == -1)
41e4abd8
NC
427 return;
428
429 PerlIO_flush(Perl_debug_log);
430
bf357333
NC
431 /* All these shenanigans are to pass a file descriptor over to our child for
432 it to dump out to. We can't let it hold open the file descriptor when it
433 forks, as the file descriptor it will dump to can turn out to be one end
434 of pipe that some other process will wait on for EOF. (So as it would
b293a5f8 435 be open, the wait would be forever.) */
bf357333
NC
436
437 msg.msg_control = control.control;
438 msg.msg_controllen = sizeof(control.control);
439 /* We're a connected socket so we don't need a destination */
440 msg.msg_name = NULL;
441 msg.msg_namelen = 0;
442 msg.msg_iov = vec;
808ad2d0 443 msg.msg_iovlen = 1;
bf357333
NC
444
445 cmptr = CMSG_FIRSTHDR(&msg);
446 cmptr->cmsg_len = CMSG_LEN(sizeof(int));
447 cmptr->cmsg_level = SOL_SOCKET;
448 cmptr->cmsg_type = SCM_RIGHTS;
449 *((int *)CMSG_DATA(cmptr)) = 1;
450
451 vec[0].iov_base = (void*)&sv;
452 vec[0].iov_len = sizeof(sv);
453 got = sendmsg(sock, &msg, 0);
41e4abd8
NC
454
455 if(got < 0) {
bf357333 456 perror("Debug leaking scalars parent sendmsg failed");
41e4abd8
NC
457 abort();
458 }
bf357333
NC
459 if(got < sizeof(sv)) {
460 perror("Debug leaking scalars parent short sendmsg");
41e4abd8
NC
461 abort();
462 }
463
808ad2d0
NC
464 /* Return protocol is
465 int: errno value
466 unsigned char: length of location string (0 for empty)
467 unsigned char*: string (not terminated)
468 */
469 vec[0].iov_base = (void*)&returned_errno;
470 vec[0].iov_len = sizeof(returned_errno);
471 vec[1].iov_base = buffer;
472 vec[1].iov_len = 1;
473
474 got = readv(sock, vec, 2);
41e4abd8
NC
475
476 if(got < 0) {
477 perror("Debug leaking scalars parent read failed");
808ad2d0 478 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
479 abort();
480 }
808ad2d0 481 if(got < sizeof(returned_errno) + 1) {
41e4abd8 482 perror("Debug leaking scalars parent short read");
808ad2d0 483 PerlIO_flush(PerlIO_stderr());
41e4abd8
NC
484 abort();
485 }
486
808ad2d0
NC
487 if (*buffer) {
488 got = read(sock, buffer + 1, *buffer);
489 if(got < 0) {
490 perror("Debug leaking scalars parent read 2 failed");
491 PerlIO_flush(PerlIO_stderr());
492 abort();
493 }
494
495 if(got < *buffer) {
496 perror("Debug leaking scalars parent short read 2");
497 PerlIO_flush(PerlIO_stderr());
498 abort();
499 }
500 }
501
502 if (returned_errno || *buffer) {
503 Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno"
504 " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1,
505 returned_errno, strerror(returned_errno));
41e4abd8
NC
506 }
507}
508#endif
509
62375a60 510/*
954c1994
GS
511=for apidoc perl_destruct
512
513Shuts down a Perl interpreter. See L<perlembed>.
514
515=cut
516*/
517
31d77e54 518int
0cb96387 519perl_destruct(pTHXx)
79072805 520{
27da23d5 521 dVAR;
be2ea8ed 522 VOL signed char destruct_level; /* see possible values in intrpvar.h */
a0d0e21e 523 HV *hv;
2aa47728 524#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
2aa47728
NC
525 pid_t child;
526#endif
9c0b6888 527 int i;
8990e307 528
7918f24d
NC
529 PERL_ARGS_ASSERT_PERL_DESTRUCT;
530#ifndef MULTIPLICITY
ed6c66dd 531 PERL_UNUSED_ARG(my_perl);
7918f24d 532#endif
9d4ba2ae 533
3d22c4f0
GG
534 assert(PL_scopestack_ix == 1);
535
7766f137
GS
536 /* wait for all pseudo-forked children to finish */
537 PERL_WAIT_FOR_CHILDREN;
538
3280af22 539 destruct_level = PL_perl_destruct_level;
36e77d41 540#if defined(DEBUGGING) || defined(PERL_TRACK_MEMPOOL)
4633a7c4 541 {
9d4ba2ae
AL
542 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL");
543 if (s) {
36e77d41
DD
544 const int i = atoi(s);
545#ifdef DEBUGGING
546 if (destruct_level < i) destruct_level = i;
547#endif
548#ifdef PERL_TRACK_MEMPOOL
549 /* RT #114496, for perl_free */
550 PL_perl_destruct_level = i;
551#endif
5f05dabc 552 }
4633a7c4
LW
553 }
554#endif
555
27da23d5 556 if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) {
f3faeb53
AB
557 dJMPENV;
558 int x = 0;
559
560 JMPENV_PUSH(x);
1b6737cc 561 PERL_UNUSED_VAR(x);
9ebf26ad 562 if (PL_endav && !PL_minus_c) {
ca7b837b 563 PERL_SET_PHASE(PERL_PHASE_END);
f3faeb53 564 call_list(PL_scopestack_ix, PL_endav);
9ebf26ad 565 }
f3faeb53 566 JMPENV_POP;
26f423df 567 }
f3faeb53 568 LEAVE;
a0d0e21e 569 FREETMPS;
3d22c4f0 570 assert(PL_scopestack_ix == 0);
a0d0e21e 571
e00b64d4 572 /* Need to flush since END blocks can produce output */
f13a2bc0 573 my_fflush_all();
e00b64d4 574
75d476e2
SM
575#ifdef PERL_TRACE_OPS
576 /* If we traced all Perl OP usage, report and clean up */
577 PerlIO_printf(Perl_debug_log, "Trace of all OPs executed:\n");
578 for (i = 0; i <= OP_max; ++i) {
579 PerlIO_printf(Perl_debug_log, " %s: %"UVuf"\n", PL_op_name[i], PL_op_exec_cnt[i]);
580 PL_op_exec_cnt[i] = 0;
581 }
582 /* Utility slot for easily doing little tracing experiments in the runloop: */
583 if (PL_op_exec_cnt[OP_max+1] != 0)
584 PerlIO_printf(Perl_debug_log, " SPECIAL: %"UVuf"\n", PL_op_exec_cnt[OP_max+1]);
585 PerlIO_printf(Perl_debug_log, "\n");
586#endif
587
588
16c91539 589 if (PL_threadhook(aTHX)) {
62375a60 590 /* Threads hook has vetoed further cleanup */
c301d606 591 PL_veto_cleanup = TRUE;
37038d91 592 return STATUS_EXIT;
62375a60
NIS
593 }
594
2aa47728
NC
595#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
596 if (destruct_level != 0) {
597 /* Fork here to create a child. Our child's job is to preserve the
598 state of scalars prior to destruction, so that we can instruct it
599 to dump any scalars that we later find have leaked.
600 There's no subtlety in this code - it assumes POSIX, and it doesn't
601 fail gracefully */
602 int fd[2];
603
604 if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) {
605 perror("Debug leaking scalars socketpair failed");
606 abort();
607 }
608
609 child = fork();
610 if(child == -1) {
611 perror("Debug leaking scalars fork failed");
612 abort();
613 }
614 if (!child) {
615 /* We are the child */
3125a5a4
NC
616 const int sock = fd[1];
617 const int debug_fd = PerlIO_fileno(Perl_debug_log);
618 int f;
808ad2d0
NC
619 const char *where;
620 /* Our success message is an integer 0, and a char 0 */
b61433a9 621 static const char success[sizeof(int) + 1] = {0};
3125a5a4 622
2aa47728 623 close(fd[0]);
2aa47728 624
3125a5a4
NC
625 /* We need to close all other file descriptors otherwise we end up
626 with interesting hangs, where the parent closes its end of a
627 pipe, and sits waiting for (another) child to terminate. Only
628 that child never terminates, because it never gets EOF, because
bf357333
NC
629 we also have the far end of the pipe open. We even need to
630 close the debugging fd, because sometimes it happens to be one
631 end of a pipe, and a process is waiting on the other end for
632 EOF. Normally it would be closed at some point earlier in
633 destruction, but if we happen to cause the pipe to remain open,
634 EOF never occurs, and we get an infinite hang. Hence all the
635 games to pass in a file descriptor if it's actually needed. */
3125a5a4
NC
636
637 f = sysconf(_SC_OPEN_MAX);
638 if(f < 0) {
808ad2d0
NC
639 where = "sysconf failed";
640 goto abort;
3125a5a4
NC
641 }
642 while (f--) {
643 if (f == sock)
644 continue;
3125a5a4
NC
645 close(f);
646 }
647
2aa47728
NC
648 while (1) {
649 SV *target;
bf357333
NC
650 union control_un control;
651 struct msghdr msg;
652 struct iovec vec[1];
653 struct cmsghdr *cmptr;
654 ssize_t got;
655 int got_fd;
656
657 msg.msg_control = control.control;
658 msg.msg_controllen = sizeof(control.control);
659 /* We're a connected socket so we don't need a source */
660 msg.msg_name = NULL;
661 msg.msg_namelen = 0;
662 msg.msg_iov = vec;
663 msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]);
664
665 vec[0].iov_base = (void*)&target;
666 vec[0].iov_len = sizeof(target);
667
668 got = recvmsg(sock, &msg, 0);
2aa47728
NC
669
670 if(got == 0)
671 break;
672 if(got < 0) {
808ad2d0
NC
673 where = "recv failed";
674 goto abort;
2aa47728
NC
675 }
676 if(got < sizeof(target)) {
808ad2d0
NC
677 where = "short recv";
678 goto abort;
2aa47728 679 }
bf357333 680
808ad2d0
NC
681 if(!(cmptr = CMSG_FIRSTHDR(&msg))) {
682 where = "no cmsg";
683 goto abort;
684 }
685 if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) {
686 where = "wrong cmsg_len";
687 goto abort;
688 }
689 if(cmptr->cmsg_level != SOL_SOCKET) {
690 where = "wrong cmsg_level";
691 goto abort;
692 }
693 if(cmptr->cmsg_type != SCM_RIGHTS) {
694 where = "wrong cmsg_type";
695 goto abort;
696 }
bf357333
NC
697
698 got_fd = *(int*)CMSG_DATA(cmptr);
699 /* For our last little bit of trickery, put the file descriptor
700 back into Perl_debug_log, as if we never actually closed it
701 */
808ad2d0
NC
702 if(got_fd != debug_fd) {
703 if (dup2(got_fd, debug_fd) == -1) {
704 where = "dup2";
705 goto abort;
706 }
707 }
2aa47728 708 sv_dump(target);
bf357333 709
2aa47728
NC
710 PerlIO_flush(Perl_debug_log);
711
808ad2d0 712 got = write(sock, &success, sizeof(success));
2aa47728
NC
713
714 if(got < 0) {
808ad2d0
NC
715 where = "write failed";
716 goto abort;
2aa47728 717 }
808ad2d0
NC
718 if(got < sizeof(success)) {
719 where = "short write";
720 goto abort;
2aa47728
NC
721 }
722 }
723 _exit(0);
808ad2d0
NC
724 abort:
725 {
726 int send_errno = errno;
727 unsigned char length = (unsigned char) strlen(where);
728 struct iovec failure[3] = {
729 {(void*)&send_errno, sizeof(send_errno)},
730 {&length, 1},
731 {(void*)where, length}
732 };
733 int got = writev(sock, failure, 3);
734 /* Bad news travels fast. Faster than data. We'll get a SIGPIPE
735 in the parent if we try to read from the socketpair after the
736 child has exited, even if there was data to read.
737 So sleep a bit to give the parent a fighting chance of
738 reading the data. */
739 sleep(2);
740 _exit((got == -1) ? errno : 0);
741 }
bf357333 742 /* End of child. */
2aa47728 743 }
41e4abd8 744 PL_dumper_fd = fd[0];
2aa47728
NC
745 close(fd[1]);
746 }
747#endif
748
ff0cee69
PP
749 /* We must account for everything. */
750
751 /* Destroy the main CV and syntax tree */
37e77c23
FC
752 /* Set PL_curcop now, because destroying ops can cause new SVs
753 to be generated in Perl_pad_swipe, and when running with
754 -DDEBUG_LEAKING_SCALARS they expect PL_curcop to point to a valid
755 op from which the filename structure member is copied. */
17fbfdf6 756 PL_curcop = &PL_compiling;
3280af22 757 if (PL_main_root) {
4e380990
DM
758 /* ensure comppad/curpad to refer to main's pad */
759 if (CvPADLIST(PL_main_cv)) {
760 PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1);
761 }
3280af22 762 op_free(PL_main_root);
5f66b61c 763 PL_main_root = NULL;
a0d0e21e 764 }
5f66b61c 765 PL_main_start = NULL;
aac9d523
DM
766 /* note that PL_main_cv isn't usually actually freed at this point,
767 * due to the CvOUTSIDE refs from subs compiled within it. It will
768 * get freed once all the subs are freed in sv_clean_all(), for
769 * destruct_level > 0 */
3280af22 770 SvREFCNT_dec(PL_main_cv);
601f1833 771 PL_main_cv = NULL;
ca7b837b 772 PERL_SET_PHASE(PERL_PHASE_DESTRUCT);
ff0cee69 773
13621cfb
NIS
774 /* Tell PerlIO we are about to tear things apart in case
775 we have layers which are using resources that should
776 be cleaned up now.
777 */
778
779 PerlIO_destruct(aTHX);
780
ddf23d4a
SM
781 /*
782 * Try to destruct global references. We do this first so that the
783 * destructors and destructees still exist. Some sv's might remain.
784 * Non-referenced objects are on their own.
785 */
786 sv_clean_objs();
8990e307 787
5cd24f17 788 /* unhook hooks which will soon be, or use, destroyed data */
3280af22 789 SvREFCNT_dec(PL_warnhook);
a0714e2c 790 PL_warnhook = NULL;
3280af22 791 SvREFCNT_dec(PL_diehook);
a0714e2c 792 PL_diehook = NULL;
5cd24f17 793
4b556e6c 794 /* call exit list functions */
3280af22 795 while (PL_exitlistlen-- > 0)
acfe0abc 796 PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr);
4b556e6c 797
3280af22 798 Safefree(PL_exitlist);
4b556e6c 799
1c4916e5
CB
800 PL_exitlist = NULL;
801 PL_exitlistlen = 0;
802
a3e6e81e
NC
803 SvREFCNT_dec(PL_registered_mros);
804
551a8b83 805 /* jettison our possibly duplicated environment */
4b647fb0
DM
806 /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied
807 * so we certainly shouldn't free it here
808 */
2f42fcb0 809#ifndef PERL_MICRO
4b647fb0 810#if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV)
50acdf95 811 if (environ != PL_origenviron && !PL_use_safe_putenv
4efc5df6
GS
812#ifdef USE_ITHREADS
813 /* only main thread can free environ[0] contents */
814 && PL_curinterp == aTHX
815#endif
816 )
817 {
551a8b83
JH
818 I32 i;
819
820 for (i = 0; environ[i]; i++)
4b420006 821 safesysfree(environ[i]);
0631ea03 822
4b420006
JH
823 /* Must use safesysfree() when working with environ. */
824 safesysfree(environ);
551a8b83
JH
825
826 environ = PL_origenviron;
827 }
828#endif
2f42fcb0 829#endif /* !PERL_MICRO */
551a8b83 830
30985c42
JH
831 if (destruct_level == 0) {
832
833 DEBUG_P(debprofdump());
834
835#if defined(PERLIO_LAYERS)
836 /* No more IO - including error messages ! */
837 PerlIO_cleanup(aTHX);
838#endif
839
840 CopFILE_free(&PL_compiling);
30985c42
JH
841
842 /* The exit() function will do everything that needs doing. */
843 return STATUS_EXIT;
844 }
845
5f8cb046
DM
846#ifdef USE_ITHREADS
847 /* the syntax tree is shared between clones
848 * so op_free(PL_main_root) only ReREFCNT_dec's
849 * REGEXPs in the parent interpreter
850 * we need to manually ReREFCNT_dec for the clones
851 */
0547a729
DM
852 {
853 I32 i = AvFILLp(PL_regex_padav);
854 SV **ary = AvARRAY(PL_regex_padav);
855
856 for (; i; i--) {
857 SvREFCNT_dec(ary[i]);
858 ary[i] = &PL_sv_undef;
859 }
860 }
5f8cb046
DM
861#endif
862
0547a729 863
ad64d0ec 864 SvREFCNT_dec(MUTABLE_SV(PL_stashcache));
081fc587
AB
865 PL_stashcache = NULL;
866
5f05dabc
PP
867 /* loosen bonds of global variables */
868
2f9285f8
DM
869 /* XXX can PL_parser still be non-null here? */
870 if(PL_parser && PL_parser->rsfp) {
871 (void)PerlIO_close(PL_parser->rsfp);
872 PL_parser->rsfp = NULL;
8ebc5c01
PP
873 }
874
84386e14
RGS
875 if (PL_minus_F) {
876 Safefree(PL_splitstr);
877 PL_splitstr = NULL;
878 }
879
8ebc5c01 880 /* switches */
3280af22
NIS
881 PL_minus_n = FALSE;
882 PL_minus_p = FALSE;
883 PL_minus_l = FALSE;
884 PL_minus_a = FALSE;
885 PL_minus_F = FALSE;
886 PL_doswitches = FALSE;
599cee73 887 PL_dowarn = G_WARN_OFF;
1a904fc8 888#ifdef PERL_SAWAMPERSAND
d3b97530 889 PL_sawampersand = 0; /* must save all match strings */
1a904fc8 890#endif
3280af22
NIS
891 PL_unsafe = FALSE;
892
893 Safefree(PL_inplace);
bd61b366 894 PL_inplace = NULL;
a7cb1f99 895 SvREFCNT_dec(PL_patchlevel);
1e8125c6 896 SvREFCNT_dec(PL_apiversion);
3280af22
NIS
897
898 if (PL_e_script) {
899 SvREFCNT_dec(PL_e_script);
a0714e2c 900 PL_e_script = NULL;
8ebc5c01
PP
901 }
902
bf9cdc68
RG
903 PL_perldb = 0;
904
8ebc5c01
PP
905 /* magical thingies */
906
e23d9e2f
CS
907 SvREFCNT_dec(PL_ofsgv); /* *, */
908 PL_ofsgv = NULL;
5f05dabc 909
7889fe52 910 SvREFCNT_dec(PL_ors_sv); /* $\ */
a0714e2c 911 PL_ors_sv = NULL;
8ebc5c01 912
3280af22 913 SvREFCNT_dec(PL_rs); /* $/ */
a0714e2c 914 PL_rs = NULL;
dc92893f 915
d33b2eba 916 Safefree(PL_osname); /* $^O */
bd61b366 917 PL_osname = NULL;
5f05dabc 918
3280af22 919 SvREFCNT_dec(PL_statname);
a0714e2c
SS
920 PL_statname = NULL;
921 PL_statgv = NULL;
5f05dabc 922
8ebc5c01
PP
923 /* defgv, aka *_ should be taken care of elsewhere */
924
7d5ea4e7
GS
925 /* float buffer */
926 Safefree(PL_efloatbuf);
bd61b366 927 PL_efloatbuf = NULL;
7d5ea4e7
GS
928 PL_efloatsize = 0;
929
8ebc5c01 930 /* startup and shutdown function lists */
3280af22 931 SvREFCNT_dec(PL_beginav);
5a837c8f 932 SvREFCNT_dec(PL_beginav_save);
3280af22 933 SvREFCNT_dec(PL_endav);
7d30b5c4 934 SvREFCNT_dec(PL_checkav);
ece599bd 935 SvREFCNT_dec(PL_checkav_save);
3c10abe3
AG
936 SvREFCNT_dec(PL_unitcheckav);
937 SvREFCNT_dec(PL_unitcheckav_save);
3280af22 938 SvREFCNT_dec(PL_initav);
7d49f689
NC
939 PL_beginav = NULL;
940 PL_beginav_save = NULL;
941 PL_endav = NULL;
942 PL_checkav = NULL;
943 PL_checkav_save = NULL;
3c10abe3
AG
944 PL_unitcheckav = NULL;
945 PL_unitcheckav_save = NULL;
7d49f689 946 PL_initav = NULL;
5618dfe8 947
8ebc5c01 948 /* shortcuts just get cleared */
a0714e2c
SS
949 PL_envgv = NULL;
950 PL_incgv = NULL;
951 PL_hintgv = NULL;
952 PL_errgv = NULL;
953 PL_argvgv = NULL;
954 PL_argvoutgv = NULL;
955 PL_stdingv = NULL;
956 PL_stderrgv = NULL;
957 PL_last_in_gv = NULL;
958 PL_replgv = NULL;
959 PL_DBgv = NULL;
960 PL_DBline = NULL;
961 PL_DBsub = NULL;
962 PL_DBsingle = NULL;
963 PL_DBtrace = NULL;
964 PL_DBsignal = NULL;
601f1833 965 PL_DBcv = NULL;
7d49f689 966 PL_dbargs = NULL;
5c284bb0 967 PL_debstash = NULL;
8ebc5c01 968
7a1c5554 969 SvREFCNT_dec(PL_argvout_stack);
7d49f689 970 PL_argvout_stack = NULL;
8ebc5c01 971
5c831c24 972 SvREFCNT_dec(PL_modglobal);
5c284bb0 973 PL_modglobal = NULL;
5c831c24 974 SvREFCNT_dec(PL_preambleav);
7d49f689 975 PL_preambleav = NULL;
5c831c24 976 SvREFCNT_dec(PL_subname);
a0714e2c 977 PL_subname = NULL;
ca0c25f6 978#ifdef PERL_USES_PL_PIDSTATUS
5c831c24 979 SvREFCNT_dec(PL_pidstatus);
5c284bb0 980 PL_pidstatus = NULL;
ca0c25f6 981#endif
5c831c24 982 SvREFCNT_dec(PL_toptarget);
a0714e2c 983 PL_toptarget = NULL;
5c831c24 984 SvREFCNT_dec(PL_bodytarget);
a0714e2c
SS
985 PL_bodytarget = NULL;
986 PL_formtarget = NULL;
5c831c24 987
d33b2eba 988 /* free locale stuff */
b9582b6a 989#ifdef USE_LOCALE_COLLATE
d33b2eba 990 Safefree(PL_collation_name);
bd61b366 991 PL_collation_name = NULL;
b9582b6a 992#endif
d33b2eba 993
b9582b6a 994#ifdef USE_LOCALE_NUMERIC
d33b2eba 995 Safefree(PL_numeric_name);
bd61b366 996 PL_numeric_name = NULL;
a453c169 997 SvREFCNT_dec(PL_numeric_radix_sv);
a0714e2c 998 PL_numeric_radix_sv = NULL;
b9582b6a 999#endif
d33b2eba 1000
9c0b6888
KW
1001 /* clear character classes */
1002 for (i = 0; i < POSIX_SWASH_COUNT; i++) {
1003 SvREFCNT_dec(PL_utf8_swash_ptrs[i]);
1004 PL_utf8_swash_ptrs[i] = NULL;
1005 }
5c831c24
GS
1006 SvREFCNT_dec(PL_utf8_mark);
1007 SvREFCNT_dec(PL_utf8_toupper);
4dbdbdc2 1008 SvREFCNT_dec(PL_utf8_totitle);
5c831c24 1009 SvREFCNT_dec(PL_utf8_tolower);
b4e400f9 1010 SvREFCNT_dec(PL_utf8_tofold);
82686b01
JH
1011 SvREFCNT_dec(PL_utf8_idstart);
1012 SvREFCNT_dec(PL_utf8_idcont);
2726813d 1013 SvREFCNT_dec(PL_utf8_foldclosures);
a0714e2c
SS
1014 PL_utf8_mark = NULL;
1015 PL_utf8_toupper = NULL;
1016 PL_utf8_totitle = NULL;
1017 PL_utf8_tolower = NULL;
1018 PL_utf8_tofold = NULL;
1019 PL_utf8_idstart = NULL;
1020 PL_utf8_idcont = NULL;
2726813d 1021 PL_utf8_foldclosures = NULL;
86f72d56 1022 for (i = 0; i < POSIX_CC_COUNT; i++) {
30f9bdb0
KW
1023 SvREFCNT_dec(PL_Posix_ptrs[i]);
1024 PL_Posix_ptrs[i] = NULL;
1025
86f72d56
KW
1026 SvREFCNT_dec(PL_L1Posix_ptrs[i]);
1027 PL_L1Posix_ptrs[i] = NULL;
cac6e0ca
KW
1028
1029 SvREFCNT_dec(PL_XPosix_ptrs[i]);
1030 PL_XPosix_ptrs[i] = NULL;
86f72d56 1031 }
5c831c24 1032
971a9dd3 1033 if (!specialWARN(PL_compiling.cop_warnings))
72dc9ed5 1034 PerlMemShared_free(PL_compiling.cop_warnings);
a0714e2c 1035 PL_compiling.cop_warnings = NULL;
20439bc7
Z
1036 cophh_free(CopHINTHASH_get(&PL_compiling));
1037 CopHINTHASH_set(&PL_compiling, cophh_new_empty());
05ec9bb3 1038 CopFILE_free(&PL_compiling);
5c831c24 1039
a0d0e21e 1040 /* Prepare to destruct main symbol table. */
5f05dabc 1041
3280af22 1042 hv = PL_defstash;
ca556bcd
DM
1043 /* break ref loop *:: <=> %:: */
1044 (void)hv_delete(hv, "main::", 6, G_DISCARD);
3280af22 1045 PL_defstash = 0;
a0d0e21e 1046 SvREFCNT_dec(hv);
5c831c24 1047 SvREFCNT_dec(PL_curstname);
a0714e2c 1048 PL_curstname = NULL;
a0d0e21e 1049
5a844595
GS
1050 /* clear queued errors */
1051 SvREFCNT_dec(PL_errors);
a0714e2c 1052 PL_errors = NULL;
5a844595 1053
dd69841b
BB
1054 SvREFCNT_dec(PL_isarev);
1055
a0d0e21e 1056 FREETMPS;
9b387841 1057 if (destruct_level >= 2) {
3280af22 1058 if (PL_scopestack_ix != 0)
9b387841
NC
1059 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1060 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
1061 (long)PL_scopestack_ix);
3280af22 1062 if (PL_savestack_ix != 0)
9b387841
NC
1063 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),
1064 "Unbalanced saves: %ld more saves than restores\n",
1065 (long)PL_savestack_ix);
3280af22 1066 if (PL_tmps_floor != -1)
9b387841
NC
1067 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n",
1068 (long)PL_tmps_floor + 1);
a0d0e21e 1069 if (cxstack_ix != -1)
9b387841
NC
1070 Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n",
1071 (long)cxstack_ix + 1);
a0d0e21e 1072 }
8990e307 1073
0547a729
DM
1074#ifdef USE_ITHREADS
1075 SvREFCNT_dec(PL_regex_padav);
1076 PL_regex_padav = NULL;
1077 PL_regex_pad = NULL;
1078#endif
1079
776df701 1080#ifdef PERL_IMPLICIT_CONTEXT
57bb2458
JH
1081 /* the entries in this list are allocated via SV PVX's, so get freed
1082 * in sv_clean_all */
1083 Safefree(PL_my_cxt_list);
776df701 1084#endif
57bb2458 1085
8990e307 1086 /* Now absolutely destruct everything, somehow or other, loops or no. */
5226ed68
JH
1087
1088 /* the 2 is for PL_fdpid and PL_strtab */
d17ea597 1089 while (sv_clean_all() > 2)
5226ed68
JH
1090 ;
1091
23083432
FC
1092#ifdef USE_ITHREADS
1093 Safefree(PL_stashpad); /* must come after sv_clean_all */
1094#endif
1095
d4777f27
GS
1096 AvREAL_off(PL_fdpid); /* no surviving entries */
1097 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
7d49f689 1098 PL_fdpid = NULL;
d33b2eba 1099
6c644e78
GS
1100#ifdef HAVE_INTERP_INTERN
1101 sys_intern_clear();
1102#endif
1103
a38ab475
RZ
1104 /* constant strings */
1105 for (i = 0; i < SV_CONSTS_COUNT; i++) {
1106 SvREFCNT_dec(PL_sv_consts[i]);
1107 PL_sv_consts[i] = NULL;
1108 }
1109
6e72f9df
PP
1110 /* Destruct the global string table. */
1111 {
1112 /* Yell and reset the HeVAL() slots that are still holding refcounts,
1113 * so that sv_free() won't fail on them.
80459961
NC
1114 * Now that the global string table is using a single hunk of memory
1115 * for both HE and HEK, we either need to explicitly unshare it the
1116 * correct way, or actually free things here.
6e72f9df 1117 */
80459961
NC
1118 I32 riter = 0;
1119 const I32 max = HvMAX(PL_strtab);
c4420975 1120 HE * const * const array = HvARRAY(PL_strtab);
80459961
NC
1121 HE *hent = array[0];
1122
6e72f9df 1123 for (;;) {
0453d815 1124 if (hent && ckWARN_d(WARN_INTERNAL)) {
44f8325f 1125 HE * const next = HeNEXT(hent);
9014280d 1126 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
44f8325f 1127 "Unbalanced string table refcount: (%ld) for \"%s\"",
de616631 1128 (long)hent->he_valu.hent_refcount, HeKEY(hent));
80459961
NC
1129 Safefree(hent);
1130 hent = next;
6e72f9df
PP
1131 }
1132 if (!hent) {
1133 if (++riter > max)
1134 break;
1135 hent = array[riter];
1136 }
1137 }
80459961
NC
1138
1139 Safefree(array);
1140 HvARRAY(PL_strtab) = 0;
1141 HvTOTALKEYS(PL_strtab) = 0;
6e72f9df 1142 }
3280af22 1143 SvREFCNT_dec(PL_strtab);
6e72f9df 1144
e652bb2f 1145#ifdef USE_ITHREADS
c21d1a0f 1146 /* free the pointer tables used for cloning */
a0739874 1147 ptr_table_free(PL_ptr_table);
bf9cdc68 1148 PL_ptr_table = (PTR_TBL_t*)NULL;
53186e96 1149#endif
a0739874 1150
d33b2eba
GS
1151 /* free special SVs */
1152
1153 SvREFCNT(&PL_sv_yes) = 0;
1154 sv_clear(&PL_sv_yes);
1155 SvANY(&PL_sv_yes) = NULL;
4c5e2b0d 1156 SvFLAGS(&PL_sv_yes) = 0;
d33b2eba
GS
1157
1158 SvREFCNT(&PL_sv_no) = 0;
1159 sv_clear(&PL_sv_no);
1160 SvANY(&PL_sv_no) = NULL;
4c5e2b0d 1161 SvFLAGS(&PL_sv_no) = 0;
01724ea0 1162
9f375a43
DM
1163 {
1164 int i;
1165 for (i=0; i<=2; i++) {
1166 SvREFCNT(PERL_DEBUG_PAD(i)) = 0;
1167 sv_clear(PERL_DEBUG_PAD(i));
1168 SvANY(PERL_DEBUG_PAD(i)) = NULL;
1169 SvFLAGS(PERL_DEBUG_PAD(i)) = 0;
1170 }
1171 }
1172
0453d815 1173 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
9014280d 1174 Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count);
6e72f9df 1175
eba0f806
DM
1176#ifdef DEBUG_LEAKING_SCALARS
1177 if (PL_sv_count != 0) {
1178 SV* sva;
1179 SV* sv;
eb578fdb 1180 SV* svend;
eba0f806 1181
ad64d0ec 1182 for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
eba0f806
DM
1183 svend = &sva[SvREFCNT(sva)];
1184 for (sv = sva + 1; sv < svend; ++sv) {
e4787c0c 1185 if (SvTYPE(sv) != (svtype)SVTYPEMASK) {
a548cda8 1186 PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p"
61b61456 1187 " flags=0x%"UVxf
fd0854ff 1188 " refcnt=%"UVuf pTHX__FORMAT "\n"
cd676548
DM
1189 "\tallocated at %s:%d %s %s (parent 0x%"UVxf");"
1190 "serial %"UVuf"\n",
574b8821
NC
1191 (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt
1192 pTHX__VALUE,
fd0854ff
DM
1193 sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1194 sv->sv_debug_line,
1195 sv->sv_debug_inpad ? "for" : "by",
1196 sv->sv_debug_optype ?
1197 PL_op_name[sv->sv_debug_optype]: "(none)",
cd676548 1198 PTR2UV(sv->sv_debug_parent),
cbe56f1d 1199 sv->sv_debug_serial
fd0854ff 1200 );
2aa47728 1201#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
41e4abd8 1202 Perl_dump_sv_child(aTHX_ sv);
2aa47728 1203#endif
eba0f806
DM
1204 }
1205 }
1206 }
1207 }
2aa47728
NC
1208#ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
1209 {
1210 int status;
1211 fd_set rset;
1212 /* Wait for up to 4 seconds for child to terminate.
1213 This seems to be the least effort way of timing out on reaping
1214 its exit status. */
1215 struct timeval waitfor = {4, 0};
41e4abd8 1216 int sock = PL_dumper_fd;
2aa47728
NC
1217
1218 shutdown(sock, 1);
1219 FD_ZERO(&rset);
1220 FD_SET(sock, &rset);
1221 select(sock + 1, &rset, NULL, NULL, &waitfor);
1222 waitpid(child, &status, WNOHANG);
1223 close(sock);
1224 }
1225#endif
eba0f806 1226#endif
77abb4c6
NC
1227#ifdef DEBUG_LEAKING_SCALARS_ABORT
1228 if (PL_sv_count)
1229 abort();
1230#endif
bf9cdc68 1231 PL_sv_count = 0;
eba0f806 1232
56a2bab7 1233#if defined(PERLIO_LAYERS)
3a1ee7e8
NIS
1234 /* No more IO - including error messages ! */
1235 PerlIO_cleanup(aTHX);
1236#endif
1237
9f4bd222 1238 /* sv_undef needs to stay immortal until after PerlIO_cleanup
a0714e2c 1239 as currently layers use it rather than NULL as a marker
9f4bd222
NIS
1240 for no arg - and will try and SvREFCNT_dec it.
1241 */
1242 SvREFCNT(&PL_sv_undef) = 0;
1243 SvREADONLY_off(&PL_sv_undef);
1244
3280af22 1245 Safefree(PL_origfilename);
bd61b366 1246 PL_origfilename = NULL;
43c5f42d 1247 Safefree(PL_reg_curpm);
dd28f7bb 1248 free_tied_hv_pool();
3280af22 1249 Safefree(PL_op_mask);
cf36064f 1250 Safefree(PL_psig_name);
bf9cdc68 1251 PL_psig_name = (SV**)NULL;
d525a7b2 1252 PL_psig_ptr = (SV**)NULL;
31c91b43
LR
1253 {
1254 /* We need to NULL PL_psig_pend first, so that
1255 signal handlers know not to use it */
1256 int *psig_save = PL_psig_pend;
1257 PL_psig_pend = (int*)NULL;
1258 Safefree(psig_save);
1259 }
6e72f9df 1260 nuke_stacks();
284167a5
SM
1261 TAINTING_set(FALSE);
1262 TAINT_WARN_set(FALSE);
3280af22 1263 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
bf9cdc68 1264 PL_debug = 0;
ac27b0f5 1265
a0d0e21e 1266 DEBUG_P(debprofdump());
d33b2eba 1267
e5dd39fc 1268#ifdef USE_REENTRANT_API
10bc17b6 1269 Perl_reentrant_free(aTHX);
e5dd39fc
AB
1270#endif
1271
612f20c3
GS
1272 sv_free_arenas();
1273
5d9a96ca
DM
1274 while (PL_regmatch_slab) {
1275 regmatch_slab *s = PL_regmatch_slab;
1276 PL_regmatch_slab = PL_regmatch_slab->next;
1277 Safefree(s);
1278 }
1279
fc36a67e
PP
1280 /* As the absolutely last thing, free the non-arena SV for mess() */
1281
3280af22 1282 if (PL_mess_sv) {
f350b448
NC
1283 /* we know that type == SVt_PVMG */
1284
9c63abab 1285 /* it could have accumulated taint magic */
f350b448
NC
1286 MAGIC* mg;
1287 MAGIC* moremagic;
1288 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
1289 moremagic = mg->mg_moremagic;
1290 if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global
1291 && mg->mg_len >= 0)
1292 Safefree(mg->mg_ptr);
1293 Safefree(mg);
9c63abab 1294 }
f350b448 1295
fc36a67e 1296 /* we know that type >= SVt_PV */
8bd4d4c5 1297 SvPV_free(PL_mess_sv);
3280af22
NIS
1298 Safefree(SvANY(PL_mess_sv));
1299 Safefree(PL_mess_sv);
a0714e2c 1300 PL_mess_sv = NULL;
fc36a67e 1301 }
37038d91 1302 return STATUS_EXIT;
79072805
LW
1303}
1304
954c1994
GS
1305/*
1306=for apidoc perl_free
1307
1308Releases a Perl interpreter. See L<perlembed>.
1309
1310=cut
1311*/
1312
79072805 1313void
0cb96387 1314perl_free(pTHXx)
79072805 1315{
5174512c
NC
1316 dVAR;
1317
7918f24d
NC
1318 PERL_ARGS_ASSERT_PERL_FREE;
1319
c301d606
DM
1320 if (PL_veto_cleanup)
1321 return;
1322
7cb608b5 1323#ifdef PERL_TRACK_MEMPOOL
55ef9aae
MHM
1324 {
1325 /*
1326 * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero
1327 * value as we're probably hunting memory leaks then
1328 */
36e77d41 1329 if (PL_perl_destruct_level == 0) {
4fd0a9b8 1330 const U32 old_debug = PL_debug;
55ef9aae
MHM
1331 /* Emulate the PerlHost behaviour of free()ing all memory allocated in this
1332 thread at thread exit. */
4fd0a9b8
NC
1333 if (DEBUG_m_TEST) {
1334 PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we "
1335 "free this thread's memory\n");
1336 PL_debug &= ~ DEBUG_m_FLAG;
1337 }
55ef9aae
MHM
1338 while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header))
1339 safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next));
4fd0a9b8 1340 PL_debug = old_debug;
55ef9aae
MHM
1341 }
1342 }
7cb608b5
NC
1343#endif
1344
acfe0abc 1345#if defined(WIN32) || defined(NETWARE)
ce3e5b80 1346# if defined(PERL_IMPLICIT_SYS)
b36c9a52 1347 {
acfe0abc 1348# ifdef NETWARE
7af12a34 1349 void *host = nw_internal_host;
acfe0abc 1350# else
7af12a34 1351 void *host = w32_internal_host;
acfe0abc 1352# endif
7af12a34 1353 PerlMem_free(aTHXx);
acfe0abc 1354# ifdef NETWARE
7af12a34 1355 nw_delete_internal_host(host);
acfe0abc 1356# else
7af12a34 1357 win32_delete_internal_host(host);
acfe0abc 1358# endif
7af12a34 1359 }
1c0ca838
GS
1360# else
1361 PerlMem_free(aTHXx);
1362# endif
acfe0abc
GS
1363#else
1364 PerlMem_free(aTHXx);
76e3520e 1365#endif
79072805
LW
1366}
1367
b7f7fff6 1368#if defined(USE_ITHREADS)
aebd1ac7
GA
1369/* provide destructors to clean up the thread key when libperl is unloaded */
1370#ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */
1371
826955bd 1372#if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__)
aebd1ac7 1373#pragma fini "perl_fini"
666ad1ec
GA
1374#elif defined(__sun) && !defined(__GNUC__)
1375#pragma fini (perl_fini)
aebd1ac7
GA
1376#endif
1377
0dbb1585
AL
1378static void
1379#if defined(__GNUC__)
1380__attribute__((destructor))
aebd1ac7 1381#endif
de009b76 1382perl_fini(void)
aebd1ac7 1383{
27da23d5 1384 dVAR;
c301d606 1385 if (PL_curinterp && !PL_veto_cleanup)
aebd1ac7
GA
1386 FREE_THREAD_KEY;
1387}
1388
1389#endif /* WIN32 */
1390#endif /* THREADS */
1391
4b556e6c 1392void
864dbfa3 1393Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
4b556e6c 1394{
97aff369 1395 dVAR;
3280af22
NIS
1396 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
1397 PL_exitlist[PL_exitlistlen].fn = fn;
1398 PL_exitlist[PL_exitlistlen].ptr = ptr;
1399 ++PL_exitlistlen;
4b556e6c
JD
1400}
1401
b7975bdd
NC
1402STATIC void
1403S_set_caret_X(pTHX) {
97aff369 1404 dVAR;
fafc274c 1405 GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */
b7975bdd 1406 if (tmpgv) {
0f1723e1 1407 SV *const caret_x = GvSV(tmpgv);
82552a95
NC
1408#if defined(OS2)
1409 sv_setpv(caret_x, os2_execname(aTHX));
1410#else
2982a345
NC
1411# ifdef USE_KERN_PROC_PATHNAME
1412 size_t size = 0;
1413 int mib[4];
1414 mib[0] = CTL_KERN;
1415 mib[1] = KERN_PROC;
1416 mib[2] = KERN_PROC_PATHNAME;
1417 mib[3] = -1;
1418
1419 if (sysctl(mib, 4, NULL, &size, NULL, 0) == 0
1420 && size > 0 && size < MAXPATHLEN * MAXPATHLEN) {
1421 sv_grow(caret_x, size);
1422
1423 if (sysctl(mib, 4, SvPVX(caret_x), &size, NULL, 0) == 0
1424 && size > 2) {
1425 SvPOK_only(caret_x);
1426 SvCUR_set(caret_x, size - 1);
1427 SvTAINT(caret_x);
1428 return;
1429 }
1430 }
ae60cb46
NC
1431# elif defined(USE_NSGETEXECUTABLEPATH)
1432 char buf[1];
1433 uint32_t size = sizeof(buf);
ae60cb46
NC
1434
1435 _NSGetExecutablePath(buf, &size);
1436 if (size < MAXPATHLEN * MAXPATHLEN) {
1437 sv_grow(caret_x, size);
1438 if (_NSGetExecutablePath(SvPVX(caret_x), &size) == 0) {
1439 char *const tidied = realpath(SvPVX(caret_x), NULL);
1440 if (tidied) {
1441 sv_setpv(caret_x, tidied);
1442 free(tidied);
1443 } else {
1444 SvPOK_only(caret_x);
1445 SvCUR_set(caret_x, size);
1446 }
1447 return;
1448 }
1449 }
2982a345 1450# elif defined(HAS_PROCSELFEXE)
700dd4f8
NC
1451 char buf[MAXPATHLEN];
1452 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1);
1453
1454 /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe)
1455 includes a spurious NUL which will cause $^X to fail in system
1456 or backticks (this will prevent extensions from being built and
1457 many tests from working). readlink is not meant to add a NUL.
1458 Normal readlink works fine.
1459 */
1460 if (len > 0 && buf[len-1] == '\0') {
1461 len--;
1462 }
1463
1464 /* FreeBSD's implementation is acknowledged to be imperfect, sometimes
1465 returning the text "unknown" from the readlink rather than the path
1466 to the executable (or returning an error from the readlink). Any
1467 valid path has a '/' in it somewhere, so use that to validate the
1468 result. See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703
1469 */
1470 if (len > 0 && memchr(buf, '/', len)) {
1471 sv_setpvn(caret_x, buf, len);
82552a95 1472 return;
700dd4f8 1473 }
82552a95
NC
1474# endif
1475 /* Fallback to this: */
0f1723e1 1476 sv_setpv(caret_x, PL_origargv[0]);
b7975bdd 1477#endif
b7975bdd
NC
1478 }
1479}
1480
954c1994
GS
1481/*
1482=for apidoc perl_parse
1483
1484Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
1485
1486=cut
1487*/
1488
03d9f026
FC
1489#define SET_CURSTASH(newstash) \
1490 if (PL_curstash != newstash) { \
1491 SvREFCNT_dec(PL_curstash); \
1492 PL_curstash = (HV *)SvREFCNT_inc(newstash); \
1493 }
1494
79072805 1495int
0cb96387 1496perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
8d063cd8 1497{
27da23d5 1498 dVAR;
6224f72b 1499 I32 oldscope;
6224f72b 1500 int ret;
db36c5a1 1501 dJMPENV;
8d063cd8 1502
7918f24d
NC
1503 PERL_ARGS_ASSERT_PERL_PARSE;
1504#ifndef MULTIPLICITY
ed6c66dd 1505 PERL_UNUSED_ARG(my_perl);
7918f24d 1506#endif
7dc86639 1507#if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) || defined(USE_HASH_SEED_DEBUG)
b0891165 1508 {
7dc86639
YO
1509 const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG");
1510
1511 if (s && (atoi(s) == 1)) {
1512 unsigned char *seed= PERL_HASH_SEED;
1513 unsigned char *seed_end= PERL_HASH_SEED + PERL_HASH_SEED_BYTES;
1514 PerlIO_printf(Perl_debug_log, "HASH_FUNCTION = %s HASH_SEED = 0x", PERL_HASH_FUNC);
1515 while (seed < seed_end) {
1516 PerlIO_printf(Perl_debug_log, "%02x", *seed++);
1517 }
6a5b4183
YO
1518#ifdef PERL_HASH_RANDOMIZE_KEYS
1519 PerlIO_printf(Perl_debug_log, " PERTURB_KEYS = %d (%s)",
1520 PL_HASH_RAND_BITS_ENABLED,
1521 PL_HASH_RAND_BITS_ENABLED == 0 ? "NO" : PL_HASH_RAND_BITS_ENABLED == 1 ? "RANDOM" : "DETERMINISTIC");
1522#endif
7dc86639
YO
1523 PerlIO_printf(Perl_debug_log, "\n");
1524 }
b0891165
JH
1525 }
1526#endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */
3280af22 1527 PL_origargc = argc;
e2975953 1528 PL_origargv = argv;
a0d0e21e 1529
a2722ac9
GA
1530 if (PL_origalen != 0) {
1531 PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */
1532 }
1533 else {
3cb9023d
JH
1534 /* Set PL_origalen be the sum of the contiguous argv[]
1535 * elements plus the size of the env in case that it is
e9137a8e 1536 * contiguous with the argv[]. This is used in mg.c:Perl_magic_set()
3cb9023d
JH
1537 * as the maximum modifiable length of $0. In the worst case
1538 * the area we are able to modify is limited to the size of
43c32782 1539 * the original argv[0]. (See below for 'contiguous', though.)
3cb9023d 1540 * --jhi */
e1ec3a88 1541 const char *s = NULL;
54bfe034 1542 int i;
1b6737cc 1543 const UV mask =
7d8e7db3 1544 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0);
43c32782 1545 /* Do the mask check only if the args seem like aligned. */
1b6737cc 1546 const UV aligned =
43c32782
JH
1547 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0]));
1548
1549 /* See if all the arguments are contiguous in memory. Note
1550 * that 'contiguous' is a loose term because some platforms
1551 * align the argv[] and the envp[]. If the arguments look
1552 * like non-aligned, assume that they are 'strictly' or
1553 * 'traditionally' contiguous. If the arguments look like
1554 * aligned, we just check that they are within aligned
1555 * PTRSIZE bytes. As long as no system has something bizarre
1556 * like the argv[] interleaved with some other data, we are
1557 * fine. (Did I just evoke Murphy's Law?) --jhi */
c8941eeb
JH
1558 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) {
1559 while (*s) s++;
1560 for (i = 1; i < PL_origargc; i++) {
1561 if ((PL_origargv[i] == s + 1
43c32782 1562#ifdef OS2
c8941eeb 1563 || PL_origargv[i] == s + 2
43c32782 1564#endif
c8941eeb
JH
1565 )
1566 ||
1567 (aligned &&
1568 (PL_origargv[i] > s &&
1569 PL_origargv[i] <=
1570 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1571 )
1572 {
1573 s = PL_origargv[i];
1574 while (*s) s++;
1575 }
1576 else
1577 break;
54bfe034 1578 }
54bfe034 1579 }
a4a109c2
JD
1580
1581#ifndef PERL_USE_SAFE_PUTENV
3cb9023d 1582 /* Can we grab env area too to be used as the area for $0? */
a4a109c2 1583 if (s && PL_origenviron && !PL_use_safe_putenv) {
9d419b5f 1584 if ((PL_origenviron[0] == s + 1)
43c32782
JH
1585 ||
1586 (aligned &&
1587 (PL_origenviron[0] > s &&
1588 PL_origenviron[0] <=
1589 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1590 )
1591 {
9d419b5f 1592#ifndef OS2 /* ENVIRON is read by the kernel too. */
43c32782
JH
1593 s = PL_origenviron[0];
1594 while (*s) s++;
1595#endif
bd61b366 1596 my_setenv("NoNe SuCh", NULL);
43c32782
JH
1597 /* Force copy of environment. */
1598 for (i = 1; PL_origenviron[i]; i++) {
1599 if (PL_origenviron[i] == s + 1
1600 ||
1601 (aligned &&
1602 (PL_origenviron[i] > s &&
1603 PL_origenviron[i] <=
1604 INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask)))
1605 )
1606 {
1607 s = PL_origenviron[i];
1608 while (*s) s++;
1609 }
1610 else
1611 break;
54bfe034 1612 }
43c32782 1613 }
54bfe034 1614 }
a4a109c2
JD
1615#endif /* !defined(PERL_USE_SAFE_PUTENV) */
1616
2d2af554 1617 PL_origalen = s ? s - PL_origargv[0] + 1 : 0;
54bfe034
JH
1618 }
1619
3280af22 1620 if (PL_do_undump) {
a0d0e21e
LW
1621
1622 /* Come here if running an undumped a.out. */
1623
3280af22
NIS
1624 PL_origfilename = savepv(argv[0]);
1625 PL_do_undump = FALSE;
a0d0e21e 1626 cxstack_ix = -1; /* start label stack again */
748a9306 1627 init_ids();
284167a5 1628 assert (!TAINT_get);
b7975bdd
NC
1629 TAINT;
1630 S_set_caret_X(aTHX);
1631 TAINT_NOT;
a0d0e21e
LW
1632 init_postdump_symbols(argc,argv,env);
1633 return 0;
1634 }
1635
3280af22 1636 if (PL_main_root) {
3280af22 1637 op_free(PL_main_root);
5f66b61c 1638 PL_main_root = NULL;
ff0cee69 1639 }
5f66b61c 1640 PL_main_start = NULL;
3280af22 1641 SvREFCNT_dec(PL_main_cv);
601f1833 1642 PL_main_cv = NULL;
79072805 1643
3280af22
NIS
1644 time(&PL_basetime);
1645 oldscope = PL_scopestack_ix;
599cee73 1646 PL_dowarn = G_WARN_OFF;
f86702cc 1647
14dd3ad8 1648 JMPENV_PUSH(ret);
6224f72b 1649 switch (ret) {
312caa8e 1650 case 0:
14dd3ad8 1651 parse_body(env,xsinit);
9ebf26ad 1652 if (PL_unitcheckav) {
3c10abe3 1653 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1654 }
1655 if (PL_checkav) {
ca7b837b 1656 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1657 call_list(oldscope, PL_checkav);
9ebf26ad 1658 }
14dd3ad8
GS
1659 ret = 0;
1660 break;
6224f72b
GS
1661 case 1:
1662 STATUS_ALL_FAILURE;
1663 /* FALL THROUGH */
1664 case 2:
1665 /* my_exit() was called */
3280af22 1666 while (PL_scopestack_ix > oldscope)
6224f72b
GS
1667 LEAVE;
1668 FREETMPS;
03d9f026 1669 SET_CURSTASH(PL_defstash);
9ebf26ad 1670 if (PL_unitcheckav) {
3c10abe3 1671 call_list(oldscope, PL_unitcheckav);
9ebf26ad
FR
1672 }
1673 if (PL_checkav) {
ca7b837b 1674 PERL_SET_PHASE(PERL_PHASE_CHECK);
7d30b5c4 1675 call_list(oldscope, PL_checkav);
9ebf26ad 1676 }
37038d91 1677 ret = STATUS_EXIT;
14dd3ad8 1678 break;
6224f72b 1679 case 3:
bf49b057 1680 PerlIO_printf(Perl_error_log, "panic: top_env\n");
14dd3ad8
GS
1681 ret = 1;
1682 break;
6224f72b 1683 }
14dd3ad8
GS
1684 JMPENV_POP;
1685 return ret;
1686}
1687
4a5df386
NC
1688/* This needs to stay in perl.c, as perl.c is compiled with different flags for
1689 miniperl, and we need to see those flags reflected in the values here. */
1690
1691/* What this returns is subject to change. Use the public interface in Config.
1692 */
1693static void
1694S_Internals_V(pTHX_ CV *cv)
1695{
1696 dXSARGS;
1697#ifdef LOCAL_PATCH_COUNT
1698 const int local_patch_count = LOCAL_PATCH_COUNT;
1699#else
1700 const int local_patch_count = 0;
1701#endif
2dc296d2 1702 const int entries = 3 + local_patch_count;
4a5df386 1703 int i;
fe1c5936 1704 static const char non_bincompat_options[] =
4a5df386
NC
1705# ifdef DEBUGGING
1706 " DEBUGGING"
1707# endif
1708# ifdef NO_MATHOMS
0d311fbe 1709 " NO_MATHOMS"
4a5df386 1710# endif
59b86f4b
DM
1711# ifdef NO_HASH_SEED
1712 " NO_HASH_SEED"
1713# endif
3b0e4ee2
MB
1714# ifdef NO_TAINT_SUPPORT
1715 " NO_TAINT_SUPPORT"
1716# endif
4a5df386
NC
1717# ifdef PERL_DISABLE_PMC
1718 " PERL_DISABLE_PMC"
1719# endif
1720# ifdef PERL_DONT_CREATE_GVSV
1721 " PERL_DONT_CREATE_GVSV"
1722# endif
9a044a43
NC
1723# ifdef PERL_EXTERNAL_GLOB
1724 " PERL_EXTERNAL_GLOB"
1725# endif
59b86f4b
DM
1726# ifdef PERL_HASH_FUNC_SIPHASH
1727 " PERL_HASH_FUNC_SIPHASH"
1728# endif
1729# ifdef PERL_HASH_FUNC_SDBM
1730 " PERL_HASH_FUNC_SDBM"
1731# endif
1732# ifdef PERL_HASH_FUNC_DJB2
1733 " PERL_HASH_FUNC_DJB2"
1734# endif
1735# ifdef PERL_HASH_FUNC_SUPERFAST
1736 " PERL_HASH_FUNC_SUPERFAST"
1737# endif
1738# ifdef PERL_HASH_FUNC_MURMUR3
1739 " PERL_HASH_FUNC_MURMUR3"
1740# endif
1741# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME
1742 " PERL_HASH_FUNC_ONE_AT_A_TIME"
1743# endif
1744# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_HARD
1745 " PERL_HASH_FUNC_ONE_AT_A_TIME_HARD"
1746# endif
1747# ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_OLD
1748 " PERL_HASH_FUNC_ONE_AT_A_TIME_OLD"
1749# endif
4a5df386
NC
1750# ifdef PERL_IS_MINIPERL
1751 " PERL_IS_MINIPERL"
1752# endif
1753# ifdef PERL_MALLOC_WRAP
1754 " PERL_MALLOC_WRAP"
1755# endif
1756# ifdef PERL_MEM_LOG
1757 " PERL_MEM_LOG"
1758# endif
1759# ifdef PERL_MEM_LOG_NOIMPL
1760 " PERL_MEM_LOG_NOIMPL"
1761# endif
2542212d
DM
1762# ifdef PERL_NEW_COPY_ON_WRITE
1763 " PERL_NEW_COPY_ON_WRITE"
1764# endif
59b86f4b
DM
1765# ifdef PERL_PERTURB_KEYS_DETERMINISTIC
1766 " PERL_PERTURB_KEYS_DETERMINISTIC"
1767# endif
1768# ifdef PERL_PERTURB_KEYS_DISABLED
1769 " PERL_PERTURB_KEYS_DISABLED"
1770# endif
1771# ifdef PERL_PERTURB_KEYS_RANDOM
1772 " PERL_PERTURB_KEYS_RANDOM"
1773# endif
c3cf41ec
NC
1774# ifdef PERL_PRESERVE_IVUV
1775 " PERL_PRESERVE_IVUV"
1776# endif
c051e30b
NC
1777# ifdef PERL_RELOCATABLE_INCPUSH
1778 " PERL_RELOCATABLE_INCPUSH"
1779# endif
4a5df386
NC
1780# ifdef PERL_USE_DEVEL
1781 " PERL_USE_DEVEL"
1782# endif
1783# ifdef PERL_USE_SAFE_PUTENV
1784 " PERL_USE_SAFE_PUTENV"
1785# endif
a3749cf3
NC
1786# ifdef UNLINK_ALL_VERSIONS
1787 " UNLINK_ALL_VERSIONS"
1788# endif
de618ee4
NC
1789# ifdef USE_ATTRIBUTES_FOR_PERLIO
1790 " USE_ATTRIBUTES_FOR_PERLIO"
1791# endif
4a5df386
NC
1792# ifdef USE_FAST_STDIO
1793 " USE_FAST_STDIO"
1794# endif
59b86f4b
DM
1795# ifdef USE_HASH_SEED_EXPLICIT
1796 " USE_HASH_SEED_EXPLICIT"
1797# endif
98548bdf
NC
1798# ifdef USE_LOCALE
1799 " USE_LOCALE"
1800# endif
98548bdf
NC
1801# ifdef USE_LOCALE_CTYPE
1802 " USE_LOCALE_CTYPE"
1803# endif
5a8d8935
NC
1804# ifdef USE_PERL_ATOF
1805 " USE_PERL_ATOF"
1806# endif
0d311fbe
NC
1807# ifdef USE_SITECUSTOMIZE
1808 " USE_SITECUSTOMIZE"
1809# endif
4a5df386
NC
1810 ;
1811 PERL_UNUSED_ARG(cv);
1812 PERL_UNUSED_ARG(items);
1813
1814 EXTEND(SP, entries);
1815
1816 PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0)));
1817 PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
1818 sizeof(non_bincompat_options) - 1, SVs_TEMP));
1819
1820#ifdef __DATE__
1821# ifdef __TIME__
1822 PUSHs(Perl_newSVpvn_flags(aTHX_
1823 STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
1824 SVs_TEMP));
1825# else
1826 PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__),
1827 SVs_TEMP));
1828# endif
1829#else
1830 PUSHs(&PL_sv_undef);
1831#endif
1832
4a5df386
NC
1833 for (i = 1; i <= local_patch_count; i++) {
1834 /* This will be an undef, if PL_localpatches[i] is NULL. */
1835 PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0)));
1836 }
1837
1838 XSRETURN(entries);
1839}
1840
be71fc8f
NC
1841#define INCPUSH_UNSHIFT 0x01
1842#define INCPUSH_ADD_OLD_VERS 0x02
1843#define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04
1844#define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08
1845#define INCPUSH_NOT_BASEDIR 0x10
1846#define INCPUSH_CAN_RELOCATE 0x20
1e3208d8
NC
1847#define INCPUSH_ADD_SUB_DIRS \
1848 (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS)
e28f3139 1849
312caa8e 1850STATIC void *
14dd3ad8 1851S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
312caa8e 1852{
27da23d5 1853 dVAR;
2f9285f8 1854 PerlIO *rsfp;
312caa8e 1855 int argc = PL_origargc;
8f42b153 1856 char **argv = PL_origargv;
e1ec3a88 1857 const char *scriptname = NULL;
312caa8e 1858 VOL bool dosearch = FALSE;
eb578fdb 1859 char c;
737c24fc 1860 bool doextract = FALSE;
bd61b366 1861 const char *cddir = NULL;
ab019eaa 1862#ifdef USE_SITECUSTOMIZE
20ef40cf 1863 bool minus_f = FALSE;
ab019eaa 1864#endif
95670bde 1865 SV *linestr_sv = NULL;
5486870f 1866 bool add_read_e_script = FALSE;
87606032 1867 U32 lex_start_flags = 0;
009d90df 1868
ca7b837b 1869 PERL_SET_PHASE(PERL_PHASE_START);
9ebf26ad 1870
6224f72b 1871 init_main_stash();
54310121 1872
c7030b81
NC
1873 {
1874 const char *s;
6224f72b
GS
1875 for (argc--,argv++; argc > 0; argc--,argv++) {
1876 if (argv[0][0] != '-' || !argv[0][1])
1877 break;
6224f72b
GS
1878 s = argv[0]+1;
1879 reswitch:
47f56822 1880 switch ((c = *s)) {
729a02f2 1881 case 'C':
1d5472a9
GS
1882#ifndef PERL_STRICT_CR
1883 case '\r':
1884#endif
6224f72b
GS
1885 case ' ':
1886 case '0':
1887 case 'F':
1888 case 'a':
1889 case 'c':
1890 case 'd':
1891 case 'D':
1892 case 'h':
1893 case 'i':
1894 case 'l':
1895 case 'M':
1896 case 'm':
1897 case 'n':
1898 case 'p':
1899 case 's':
1900 case 'u':
1901 case 'U':
1902 case 'v':
599cee73
PM
1903 case 'W':
1904 case 'X':
6224f72b 1905 case 'w':
97bd5664 1906 if ((s = moreswitches(s)))
6224f72b
GS
1907 goto reswitch;
1908 break;
33b78306 1909
1dbad523 1910 case 't':
284167a5
SM
1911#if SILENT_NO_TAINT_SUPPORT
1912 /* silently ignore */
1913#elif NO_TAINT_SUPPORT
3231f579 1914 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
1915 "Cowardly refusing to run with -t or -T flags");
1916#else
22f7c9c9 1917 CHECK_MALLOC_TOO_LATE_FOR('t');
284167a5
SM
1918 if( !TAINTING_get ) {
1919 TAINT_WARN_set(TRUE);
1920 TAINTING_set(TRUE);
317ea90d 1921 }
284167a5 1922#endif
317ea90d
MS
1923 s++;
1924 goto reswitch;
6224f72b 1925 case 'T':
284167a5
SM
1926#if SILENT_NO_TAINT_SUPPORT
1927 /* silently ignore */
1928#elif NO_TAINT_SUPPORT
3231f579 1929 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
1930 "Cowardly refusing to run with -t or -T flags");
1931#else
22f7c9c9 1932 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
SM
1933 TAINTING_set(TRUE);
1934 TAINT_WARN_set(FALSE);
1935#endif
6224f72b
GS
1936 s++;
1937 goto reswitch;
f86702cc 1938
bc9b29db
RH
1939 case 'E':
1940 PL_minus_E = TRUE;
1941 /* FALL THROUGH */
6224f72b 1942 case 'e':
f20b2998 1943 forbid_setid('e', FALSE);
3280af22 1944 if (!PL_e_script) {
396482e1 1945 PL_e_script = newSVpvs("");
5486870f 1946 add_read_e_script = TRUE;
6224f72b
GS
1947 }
1948 if (*++s)
3280af22 1949 sv_catpv(PL_e_script, s);
6224f72b 1950 else if (argv[1]) {
3280af22 1951 sv_catpv(PL_e_script, argv[1]);
6224f72b
GS
1952 argc--,argv++;
1953 }
1954 else
47f56822 1955 Perl_croak(aTHX_ "No code specified for -%c", c);
396482e1 1956 sv_catpvs(PL_e_script, "\n");
6224f72b 1957 break;
afe37c7d 1958
20ef40cf 1959 case 'f':
f5542d3a 1960#ifdef USE_SITECUSTOMIZE
20ef40cf 1961 minus_f = TRUE;
f5542d3a 1962#endif
20ef40cf
GA
1963 s++;
1964 goto reswitch;
1965
6224f72b 1966 case 'I': /* -I handled both here and in moreswitches() */
f20b2998 1967 forbid_setid('I', FALSE);
bd61b366 1968 if (!*++s && (s=argv[1]) != NULL) {
6224f72b
GS
1969 argc--,argv++;
1970 }
6224f72b 1971 if (s && *s) {
0df16ed7 1972 STRLEN len = strlen(s);
55b4bc1c 1973 incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS);
0df16ed7
GS
1974 }
1975 else
a67e862a 1976 Perl_croak(aTHX_ "No directory specified for -I");
6224f72b 1977 break;
6224f72b 1978 case 'S':
f20b2998 1979 forbid_setid('S', FALSE);
6224f72b
GS
1980 dosearch = TRUE;
1981 s++;
1982 goto reswitch;
1983 case 'V':
7edfd0ef
NC
1984 {
1985 SV *opts_prog;
1986
7edfd0ef 1987 if (*++s != ':') {
37ca4a5b 1988 opts_prog = newSVpvs("use Config; Config::_V()");
7edfd0ef
NC
1989 }
1990 else {
1991 ++s;
1992 opts_prog = Perl_newSVpvf(aTHX_
37ca4a5b 1993 "use Config; Config::config_vars(qw%c%s%c)",
7edfd0ef
NC
1994 0, s, 0);
1995 s += strlen(s);
1996 }
37ca4a5b 1997 Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog);
7edfd0ef
NC
1998 /* don't look for script or read stdin */
1999 scriptname = BIT_BUCKET;
2000 goto reswitch;
6224f72b 2001 }
6224f72b 2002 case 'x':
737c24fc 2003 doextract = TRUE;
6224f72b 2004 s++;
304334da 2005 if (*s)
f4c556ac 2006 cddir = s;
6224f72b
GS
2007 break;
2008 case 0:
2009 break;
2010 case '-':
2011 if (!*++s || isSPACE(*s)) {
2012 argc--,argv++;
2013 goto switch_end;
2014 }
ee8bc8b7
NC
2015 /* catch use of gnu style long options.
2016 Both of these exit immediately. */
2017 if (strEQ(s, "version"))
2018 minus_v();
2019 if (strEQ(s, "help"))
2020 usage();
6224f72b
GS
2021 s--;
2022 /* FALL THROUGH */
2023 default:
cea2e8a9 2024 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
8d063cd8
LW
2025 }
2026 }
c7030b81
NC
2027 }
2028
6224f72b 2029 switch_end:
54310121 2030
c7030b81
NC
2031 {
2032 char *s;
2033
f675dbe5
CB
2034 if (
2035#ifndef SECURE_INTERNAL_GETENV
284167a5 2036 !TAINTING_get &&
f675dbe5 2037#endif
cf756827 2038 (s = PerlEnv_getenv("PERL5OPT")))
0df16ed7 2039 {
74288ac8
GS
2040 while (isSPACE(*s))
2041 s++;
317ea90d 2042 if (*s == '-' && *(s+1) == 'T') {
284167a5
SM
2043#if SILENT_NO_TAINT_SUPPORT
2044 /* silently ignore */
2045#elif NO_TAINT_SUPPORT
3231f579 2046 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
2047 "Cowardly refusing to run with -t or -T flags");
2048#else
22f7c9c9 2049 CHECK_MALLOC_TOO_LATE_FOR('T');
284167a5
SM
2050 TAINTING_set(TRUE);
2051 TAINT_WARN_set(FALSE);
2052#endif
317ea90d 2053 }
74288ac8 2054 else {
bd61b366 2055 char *popt_copy = NULL;
74288ac8 2056 while (s && *s) {
54913509 2057 const char *d;
74288ac8
GS
2058 while (isSPACE(*s))
2059 s++;
2060 if (*s == '-') {
2061 s++;
2062 if (isSPACE(*s))
2063 continue;
2064 }
4ea8f8fb 2065 d = s;
74288ac8
GS
2066 if (!*s)
2067 break;
2b622f1a 2068 if (!strchr("CDIMUdmtwW", *s))
cea2e8a9 2069 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
4ea8f8fb
MS
2070 while (++s && *s) {
2071 if (isSPACE(*s)) {
cf756827 2072 if (!popt_copy) {
bfa6c418
NC
2073 popt_copy = SvPVX(sv_2mortal(newSVpv(d,0)));
2074 s = popt_copy + (s - d);
2075 d = popt_copy;
cf756827 2076 }
4ea8f8fb
MS
2077 *s++ = '\0';
2078 break;
2079 }
2080 }
1c4db469 2081 if (*d == 't') {
284167a5
SM
2082#if SILENT_NO_TAINT_SUPPORT
2083 /* silently ignore */
2084#elif NO_TAINT_SUPPORT
3231f579 2085 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
2086 "Cowardly refusing to run with -t or -T flags");
2087#else
2088 if( !TAINTING_get) {
2089 TAINT_WARN_set(TRUE);
2090 TAINTING_set(TRUE);
317ea90d 2091 }
284167a5 2092#endif
1c4db469 2093 } else {
97bd5664 2094 moreswitches(d);
1c4db469 2095 }
6224f72b 2096 }
6224f72b
GS
2097 }
2098 }
c7030b81 2099 }
a0d0e21e 2100
c29067d7
CH
2101 /* Set $^X early so that it can be used for relocatable paths in @INC */
2102 /* and for SITELIB_EXP in USE_SITECUSTOMIZE */
284167a5 2103 assert (!TAINT_get);
c29067d7
CH
2104 TAINT;
2105 S_set_caret_X(aTHX);
2106 TAINT_NOT;
2107
43c0c913 2108#if defined(USE_SITECUSTOMIZE)
20ef40cf 2109 if (!minus_f) {
43c0c913 2110 /* The games with local $! are to avoid setting errno if there is no
fc81b718
NC
2111 sitecustomize script. "q%c...%c", 0, ..., 0 becomes "q\0...\0",
2112 ie a q() operator with a NUL byte as a the delimiter. This avoids
2113 problems with pathnames containing (say) ' */
43c0c913
NC
2114# ifdef PERL_IS_MINIPERL
2115 AV *const inc = GvAV(PL_incgv);
2116 SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL;
2117
2118 if (inc0) {
15870c5c
NC
2119 /* if lib/buildcustomize.pl exists, it should not fail. If it does,
2120 it should be reported immediately as a build failure. */
43c0c913
NC
2121 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2122 Perl_newSVpvf(aTHX_
15870c5c 2123 "BEGIN { do {local $!; -f q%c%"SVf"/buildcustomize.pl%c} and do q%c%"SVf"/buildcustomize.pl%c || die $@ }",
fc81b718
NC
2124 0, *inc0, 0,
2125 0, *inc0, 0));
43c0c913
NC
2126 }
2127# else
2128 /* SITELIB_EXP is a function call on Win32. */
c29067d7 2129 const char *const raw_sitelib = SITELIB_EXP;
bac5c4fc
JD
2130 if (raw_sitelib) {
2131 /* process .../.. if PERL_RELOCATABLE_INC is defined */
2132 SV *sitelib_sv = mayberelocate(raw_sitelib, strlen(raw_sitelib),
2133 INCPUSH_CAN_RELOCATE);
2134 const char *const sitelib = SvPVX(sitelib_sv);
2135 (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav,
2136 Perl_newSVpvf(aTHX_
2137 "BEGIN { do {local $!; -f q%c%s/sitecustomize.pl%c} && do q%c%s/sitecustomize.pl%c }",
2138 0, sitelib, 0,
2139 0, sitelib, 0));
2140 assert (SvREFCNT(sitelib_sv) == 1);
2141 SvREFCNT_dec(sitelib_sv);
2142 }
43c0c913 2143# endif
20ef40cf
GA
2144 }
2145#endif
2146
6224f72b
GS
2147 if (!scriptname)
2148 scriptname = argv[0];
3280af22 2149 if (PL_e_script) {
6224f72b
GS
2150 argc++,argv--;
2151 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
2152 }
bd61b366 2153 else if (scriptname == NULL) {
6224f72b
GS
2154#ifdef MSDOS
2155 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
97bd5664 2156 moreswitches("h");
6224f72b
GS
2157#endif
2158 scriptname = "-";
2159 }
2160
284167a5 2161 assert (!TAINT_get);
2cace6ac 2162 init_perllib();
6224f72b 2163
a52eba0e 2164 {
f20b2998 2165 bool suidscript = FALSE;
829372d3 2166
8d113837 2167 rsfp = open_script(scriptname, dosearch, &suidscript);
c0b3891a
NC
2168 if (!rsfp) {
2169 rsfp = PerlIO_stdin();
87606032 2170 lex_start_flags = LEX_DONT_CLOSE_RSFP;
c0b3891a 2171 }
6224f72b 2172
b24bc095 2173 validate_suid(rsfp);
6224f72b 2174
64ca3a65 2175#ifndef PERL_MICRO
a52eba0e
NC
2176# if defined(SIGCHLD) || defined(SIGCLD)
2177 {
2178# ifndef SIGCHLD
2179# define SIGCHLD SIGCLD
2180# endif
2181 Sighandler_t sigstate = rsignal_state(SIGCHLD);
2182 if (sigstate == (Sighandler_t) SIG_IGN) {
a2a5de95
NC
2183 Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL),
2184 "Can't ignore signal CHLD, forcing to default");
a52eba0e
NC
2185 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
2186 }
0b5b802d 2187 }
a52eba0e 2188# endif
64ca3a65 2189#endif
0b5b802d 2190
737c24fc 2191 if (doextract) {
faef540c 2192
f20b2998 2193 /* This will croak if suidscript is true, as -x cannot be used with
faef540c
NC
2194 setuid scripts. */
2195 forbid_setid('x', suidscript);
f20b2998 2196 /* Hence you can't get here if suidscript is true */
faef540c 2197
95670bde
NC
2198 linestr_sv = newSV_type(SVt_PV);
2199 lex_start_flags |= LEX_START_COPIED;
2f9285f8 2200 find_beginning(linestr_sv, rsfp);
a52eba0e
NC
2201 if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
2202 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
2203 }
f4c556ac 2204 }
6224f72b 2205
ea726b52 2206 PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV));
3280af22
NIS
2207 CvUNIQUE_on(PL_compcv);
2208
dd2155a4 2209 CvPADLIST(PL_compcv) = pad_new(0);
6224f72b 2210
dd69841b
BB
2211 PL_isarev = newHV();
2212
0c4f7ff0 2213 boot_core_PerlIO();
6224f72b 2214 boot_core_UNIVERSAL();
e1a479c5 2215 boot_core_mro();
4a5df386 2216 newXS("Internals::V", S_Internals_V, __FILE__);
6224f72b
GS
2217
2218 if (xsinit)
acfe0abc 2219 (*xsinit)(aTHX); /* in case linked C routines want magical variables */
64ca3a65 2220#ifndef PERL_MICRO
739a0b84 2221#if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(SYMBIAN)
c5be433b 2222 init_os_extras();
6224f72b 2223#endif
64ca3a65 2224#endif
6224f72b 2225
29209bc5 2226#ifdef USE_SOCKS
1b9c9cf5
DH
2227# ifdef HAS_SOCKS5_INIT
2228 socks5_init(argv[0]);
2229# else
29209bc5 2230 SOCKSinit(argv[0]);
1b9c9cf5 2231# endif
ac27b0f5 2232#endif
29209bc5 2233
6224f72b
GS
2234 init_predump_symbols();
2235 /* init_postdump_symbols not currently designed to be called */
2236 /* more than once (ENV isn't cleared first, for example) */
2237 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
3280af22 2238 if (!PL_do_undump)
6224f72b
GS
2239 init_postdump_symbols(argc,argv,env);
2240
27da23d5
JH
2241 /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE},
2242 * or explicitly in some platforms.
085a54d9 2243 * locale.c:Perl_init_i18nl10n() if the environment
a05d7ebb 2244 * look like the user wants to use UTF-8. */
a0fd4948 2245#if defined(__SYMBIAN32__)
27da23d5
JH
2246 PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */
2247#endif
e27b5b51 2248# ifndef PERL_IS_MINIPERL
06e66572
JH
2249 if (PL_unicode) {
2250 /* Requires init_predump_symbols(). */
a05d7ebb 2251 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) {
06e66572
JH
2252 IO* io;
2253 PerlIO* fp;
2254 SV* sv;
2255
a05d7ebb 2256 /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR
06e66572 2257 * and the default open disciplines. */
a05d7ebb
JH
2258 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) &&
2259 PL_stdingv && (io = GvIO(PL_stdingv)) &&
2260 (fp = IoIFP(io)))
2261 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2262 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) &&
2263 PL_defoutgv && (io = GvIO(PL_defoutgv)) &&
2264 (fp = IoOFP(io)))
2265 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2266 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) &&
2267 PL_stderrgv && (io = GvIO(PL_stderrgv)) &&
2268 (fp = IoOFP(io)))
2269 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8");
2270 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) &&
fafc274c
NC
2271 (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL,
2272 SVt_PV)))) {
a05d7ebb
JH
2273 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG;
2274 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG;
2275 if (in) {
2276 if (out)
76f68e9b 2277 sv_setpvs(sv, ":utf8\0:utf8");
a05d7ebb 2278 else
76f68e9b 2279 sv_setpvs(sv, ":utf8\0");
a05d7ebb
JH
2280 }
2281 else if (out)
76f68e9b 2282 sv_setpvs(sv, "\0:utf8");
a05d7ebb
JH
2283 SvSETMAGIC(sv);
2284 }
b310b053
JH
2285 }
2286 }
e27b5b51 2287#endif
b310b053 2288
c7030b81
NC
2289 {
2290 const char *s;
4ffa73a3
JH
2291 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) {
2292 if (strEQ(s, "unsafe"))
2293 PL_signals |= PERL_SIGNALS_UNSAFE_FLAG;
2294 else if (strEQ(s, "safe"))
2295 PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG;
2296 else
2297 Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s);
2298 }
c7030b81 2299 }
4ffa73a3 2300
81d86705 2301#ifdef PERL_MAD
c7030b81
NC
2302 {
2303 const char *s;
284167a5 2304 if (!TAINTING_get &&
2cc12391 2305 (s = PerlEnv_getenv("PERL_XMLDUMP"))) {
81d86705
NC
2306 PL_madskills = 1;
2307 PL_minus_c = 1;
2308 if (!s || !s[0])
2309 PL_xmlfp = PerlIO_stdout();
2310 else {
2311 PL_xmlfp = PerlIO_open(s, "w");
2312 if (!PL_xmlfp)
2313 Perl_croak(aTHX_ "Can't open %s", s);
2314 }
1a9a51d4 2315 my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */
81d86705 2316 }
c7030b81
NC
2317 }
2318
2319 {
2320 const char *s;
81d86705
NC
2321 if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) {
2322 PL_madskills = atoi(s);
1a9a51d4 2323 my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */
81d86705 2324 }
c7030b81 2325 }
81d86705
NC
2326#endif
2327
87606032 2328 lex_start(linestr_sv, rsfp, lex_start_flags);
d2687c98 2329 SvREFCNT_dec(linestr_sv);
95670bde 2330
219f7226 2331 PL_subname = newSVpvs("main");
6224f72b 2332
5486870f
DM
2333 if (add_read_e_script)
2334 filter_add(read_e_script, NULL);
2335
6224f72b
GS
2336 /* now parse the script */
2337
93189314 2338 SETERRNO(0,SS_NORMAL);
28ac2b49 2339 if (yyparse(GRAMPROG) || PL_parser->error_count) {
3280af22 2340 if (PL_minus_c)
cea2e8a9 2341 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
6224f72b 2342 else {
cea2e8a9 2343 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
097ee67d 2344 PL_origfilename);
6224f72b
GS
2345 }
2346 }
57843af0 2347 CopLINE_set(PL_curcop, 0);
03d9f026 2348 SET_CURSTASH(PL_defstash);
3280af22
NIS
2349 if (PL_e_script) {
2350 SvREFCNT_dec(PL_e_script);
a0714e2c 2351 PL_e_script = NULL;
6224f72b
GS
2352 }
2353
3280af22 2354 if (PL_do_undump)
6224f72b
GS
2355 my_unexec();
2356
57843af0
GS
2357 if (isWARN_ONCE) {
2358 SAVECOPFILE(PL_curcop);
2359 SAVECOPLINE(PL_curcop);
3280af22 2360 gv_check(PL_defstash);
57843af0 2361 }
6224f72b
GS
2362
2363 LEAVE;
2364 FREETMPS;
2365
2366#ifdef MYMALLOC
f6a607bc
RGS
2367 {
2368 const char *s;
6224f72b
GS
2369 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
2370 dump_mstats("after compilation:");
f6a607bc 2371 }
6224f72b
GS
2372#endif
2373
2374 ENTER;
febb3a6d 2375 PL_restartjmpenv = NULL;
3280af22 2376 PL_restartop = 0;
312caa8e 2377 return NULL;
6224f72b
GS
2378}
2379
954c1994
GS
2380/*
2381=for apidoc perl_run
2382
2383Tells a Perl interpreter to run. See L<perlembed>.
2384
2385=cut
2386*/
2387
6224f72b 2388int
0cb96387 2389perl_run(pTHXx)
6224f72b 2390{
97aff369 2391 dVAR;
6224f72b 2392 I32 oldscope;
14dd3ad8 2393 int ret = 0;
db36c5a1 2394 dJMPENV;
6224f72b 2395
7918f24d
NC
2396 PERL_ARGS_ASSERT_PERL_RUN;
2397#ifndef MULTIPLICITY
ed6c66dd 2398 PERL_UNUSED_ARG(my_perl);
7918f24d 2399#endif
9d4ba2ae 2400
3280af22 2401 oldscope = PL_scopestack_ix;
96e176bf
CL
2402#ifdef VMS
2403 VMSISH_HUSHED = 0;
2404#endif
6224f72b 2405
14dd3ad8 2406 JMPENV_PUSH(ret);
6224f72b
GS
2407 switch (ret) {
2408 case 1:
2409 cxstack_ix = -1; /* start context stack again */
312caa8e 2410 goto redo_body;
14dd3ad8 2411 case 0: /* normal completion */
14dd3ad8
GS
2412 redo_body:
2413 run_body(oldscope);
14dd3ad8
GS
2414 /* FALL THROUGH */
2415 case 2: /* my_exit() */
3280af22 2416 while (PL_scopestack_ix > oldscope)
6224f72b
GS
2417 LEAVE;
2418 FREETMPS;
03d9f026 2419 SET_CURSTASH(PL_defstash);
3a1ee7e8 2420 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) &&
9ebf26ad 2421 PL_endav && !PL_minus_c) {
ca7b837b 2422 PERL_SET_PHASE(PERL_PHASE_END);
31d77e54 2423 call_list(oldscope, PL_endav);
9ebf26ad 2424 }
6224f72b
GS
2425#ifdef MYMALLOC
2426 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
2427 dump_mstats("after execution: ");
2428#endif
37038d91 2429 ret = STATUS_EXIT;
14dd3ad8 2430 break;
6224f72b 2431 case 3:
312caa8e
CS
2432 if (PL_restartop) {
2433 POPSTACK_TO(PL_mainstack);
2434 goto redo_body;
6224f72b 2435 }
5637ef5b 2436 PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n");
312caa8e 2437 FREETMPS;
14dd3ad8
GS
2438 ret = 1;
2439 break;
6224f72b
GS
2440 }
2441
14dd3ad8
GS
2442 JMPENV_POP;
2443 return ret;
312caa8e
CS
2444}
2445
dd374669 2446STATIC void
14dd3ad8
GS
2447S_run_body(pTHX_ I32 oldscope)
2448{
97aff369 2449 dVAR;
d3b97530
DM
2450 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support (0x%x).\n",
2451 PL_sawampersand ? "Enabling" : "Omitting",
2452 (unsigned int)(PL_sawampersand)));
6224f72b 2453
3280af22 2454 if (!PL_restartop) {
81d86705
NC
2455#ifdef PERL_MAD
2456 if (PL_xmlfp) {
2457 xmldump_all();
2458 exit(0); /* less likely to core dump than my_exit(0) */
2459 }
2460#endif
cf2782cd 2461#ifdef DEBUGGING
f0e3f042
CS
2462 if (DEBUG_x_TEST || DEBUG_B_TEST)
2463 dump_all_perl(!DEBUG_B_TEST);
ecae49c0
NC
2464 if (!DEBUG_q_TEST)
2465 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
cf2782cd 2466#endif
6224f72b 2467
3280af22 2468 if (PL_minus_c) {
bf49b057 2469 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
6224f72b
GS
2470 my_exit(0);
2471 }
3280af22 2472 if (PERLDB_SINGLE && PL_DBsingle)
ac27b0f5 2473 sv_setiv(PL_DBsingle, 1);
9ebf26ad 2474 if (PL_initav) {
ca7b837b 2475 PERL_SET_PHASE(PERL_PHASE_INIT);
3280af22 2476 call_list(oldscope, PL_initav);
9ebf26ad 2477 }
f1fac472 2478#ifdef PERL_DEBUG_READONLY_OPS
3107b51f
FC
2479 if (PL_main_root && PL_main_root->op_slabbed)
2480 Slab_to_ro(OpSLAB(PL_main_root));
f1fac472 2481#endif
6224f72b
GS
2482 }
2483
2484 /* do it */
2485
ca7b837b 2486 PERL_SET_PHASE(PERL_PHASE_RUN);
9ebf26ad 2487
3280af22 2488 if (PL_restartop) {
febb3a6d 2489 PL_restartjmpenv = NULL;
533c011a 2490 PL_op = PL_restartop;
3280af22 2491 PL_restartop = 0;
cea2e8a9 2492 CALLRUNOPS(aTHX);
6224f72b 2493 }
3280af22
NIS
2494 else if (PL_main_start) {
2495 CvDEPTH(PL_main_cv) = 1;
533c011a 2496 PL_op = PL_main_start;
cea2e8a9 2497 CALLRUNOPS(aTHX);
6224f72b 2498 }
f6b3007c 2499 my_exit(0);
118e2215 2500 assert(0); /* NOTREACHED */
6224f72b
GS
2501}
2502
954c1994 2503/*
ccfc67b7
JH
2504=head1 SV Manipulation Functions
2505
954c1994
GS
2506=for apidoc p||get_sv
2507
64ace3f8
NC
2508Returns the SV of the specified Perl scalar. C<flags> are passed to
2509C<gv_fetchpv>. If C<GV_ADD> is set and the
2510Perl variable does not exist then it will be created. If C<flags> is zero
2511and the variable does not exist then NULL is returned.
954c1994
GS
2512
2513=cut
2514*/
2515
6224f72b 2516SV*
64ace3f8 2517Perl_get_sv(pTHX_ const char *name, I32 flags)
6224f72b
GS
2518{
2519 GV *gv;
7918f24d
NC
2520
2521 PERL_ARGS_ASSERT_GET_SV;
2522
64ace3f8 2523 gv = gv_fetchpv(name, flags, SVt_PV);
6224f72b
GS
2524 if (gv)
2525 return GvSV(gv);
a0714e2c 2526 return NULL;
6224f72b
GS
2527}
2528
954c1994 2529/*
ccfc67b7
JH
2530=head1 Array Manipulation Functions
2531
954c1994
GS
2532=for apidoc p||get_av
2533
f0b90de1
SF
2534Returns the AV of the specified Perl global or package array with the given
2535name (so it won't work on lexical variables). C<flags> are passed
2536to C<gv_fetchpv>. If C<GV_ADD> is set and the
cbfd0a87
NC
2537Perl variable does not exist then it will be created. If C<flags> is zero
2538and the variable does not exist then NULL is returned.
954c1994 2539
f0b90de1
SF
2540Perl equivalent: C<@{"$name"}>.
2541
954c1994
GS
2542=cut
2543*/
2544
6224f72b 2545AV*
cbfd0a87 2546Perl_get_av(pTHX_ const char *name, I32 flags)
6224f72b 2547{
cbfd0a87 2548 GV* const gv = gv_fetchpv(name, flags, SVt_PVAV);
7918f24d
NC
2549
2550 PERL_ARGS_ASSERT_GET_AV;
2551
cbfd0a87 2552 if (flags)
6224f72b
GS
2553 return GvAVn(gv);
2554 if (gv)
2555 return GvAV(gv);
7d49f689 2556 return NULL;
6224f72b
GS
2557}
2558
954c1994 2559/*
ccfc67b7
JH
2560=head1 Hash Manipulation Functions
2561
954c1994
GS
2562=for apidoc p||get_hv
2563
6673a63c
NC
2564Returns the HV of the specified Perl hash. C<flags> are passed to
2565C<gv_fetchpv>. If C<GV_ADD> is set and the
2566Perl variable does not exist then it will be created. If C<flags> is zero
2567and the variable does not exist then NULL is returned.
954c1994
GS
2568
2569=cut
2570*/
2571
6224f72b 2572HV*
6673a63c 2573Perl_get_hv(pTHX_ const char *name, I32 flags)
6224f72b 2574{
6673a63c 2575 GV* const gv = gv_fetchpv(name, flags, SVt_PVHV);
7918f24d
NC
2576
2577 PERL_ARGS_ASSERT_GET_HV;
2578
6673a63c 2579 if (flags)
a0d0e21e
LW
2580 return GvHVn(gv);
2581 if (gv)
2582 return GvHV(gv);
5c284bb0 2583 return NULL;
a0d0e21e
LW
2584}
2585
954c1994 2586/*
ccfc67b7
JH
2587=head1 CV Manipulation Functions
2588
780a5241
NC
2589=for apidoc p||get_cvn_flags
2590
2591Returns the CV of the specified Perl subroutine. C<flags> are passed to
2592C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not
2593exist then it will be declared (which has the same effect as saying
2594C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist
2595then NULL is returned.
2596
954c1994
GS
2597=for apidoc p||get_cv
2598
780a5241 2599Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>.
954c1994
GS
2600
2601=cut
2602*/
2603
a0d0e21e 2604CV*
780a5241 2605Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags)
a0d0e21e 2606{
780a5241 2607 GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV);
7918f24d
NC
2608
2609 PERL_ARGS_ASSERT_GET_CVN_FLAGS;
2610
334dda80
FC
2611 /* XXX this is probably not what they think they're getting.
2612 * It has the same effect as "sub name;", i.e. just a forward
2613 * declaration! */
780a5241 2614 if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) {
186a5ba8 2615 return newSTUB(gv,0);
780a5241 2616 }
a0d0e21e 2617 if (gv)
8ebc5c01 2618 return GvCVu(gv);
601f1833 2619 return NULL;
a0d0e21e
LW
2620}
2621
2c67934f
NC
2622/* Nothing in core calls this now, but we can't replace it with a macro and
2623 move it to mathoms.c as a macro would evaluate name twice. */
780a5241
NC
2624CV*
2625Perl_get_cv(pTHX_ const char *name, I32 flags)
2626{
7918f24d
NC
2627 PERL_ARGS_ASSERT_GET_CV;
2628
780a5241
NC
2629 return get_cvn_flags(name, strlen(name), flags);
2630}
2631
79072805
LW
2632/* Be sure to refetch the stack pointer after calling these routines. */
2633
954c1994 2634/*
ccfc67b7
JH
2635
2636=head1 Callback Functions
2637
954c1994
GS
2638=for apidoc p||call_argv
2639
f0b90de1
SF
2640Performs a callback to the specified named and package-scoped Perl subroutine
2641with C<argv> (a NULL-terminated array of strings) as arguments. See L<perlcall>.
2642
2643Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>.
954c1994
GS
2644
2645=cut
2646*/
2647
a0d0e21e 2648I32
5aaab254 2649Perl_call_argv(pTHX_ const char *sub_name, I32 flags, char **argv)
ac27b0f5 2650
8ac85365
NIS
2651 /* See G_* flags in cop.h */
2652 /* null terminated arg list */
8990e307 2653{
97aff369 2654 dVAR;
a0d0e21e 2655 dSP;
8990e307 2656
7918f24d
NC
2657 PERL_ARGS_ASSERT_CALL_ARGV;
2658
924508f0 2659 PUSHMARK(SP);
a0d0e21e 2660 if (argv) {
8990e307 2661 while (*argv) {
6e449a3a 2662 mXPUSHs(newSVpv(*argv,0));
8990e307
LW
2663 argv++;
2664 }
a0d0e21e 2665 PUTBACK;
8990e307 2666 }
864dbfa3 2667 return call_pv(sub_name, flags);
8990e307
LW
2668}
2669
954c1994
GS
2670/*
2671=for apidoc p||call_pv
2672
2673Performs a callback to the specified Perl sub. See L<perlcall>.
2674
2675=cut
2676*/
2677
a0d0e21e 2678I32
864dbfa3 2679Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
8ac85365
NIS
2680 /* name of the subroutine */
2681 /* See G_* flags in cop.h */
a0d0e21e 2682{
7918f24d
NC
2683 PERL_ARGS_ASSERT_CALL_PV;
2684
0da0e728 2685 return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags);
a0d0e21e
LW
2686}
2687
954c1994
GS
2688/*
2689=for apidoc p||call_method
2690
2691Performs a callback to the specified Perl method. The blessed object must
2692be on the stack. See L<perlcall>.
2693
2694=cut
2695*/
2696
a0d0e21e 2697I32
864dbfa3 2698Perl_call_method(pTHX_ const char *methname, I32 flags)
8ac85365
NIS
2699 /* name of the subroutine */
2700 /* See G_* flags in cop.h */
a0d0e21e 2701{
46ca9bac 2702 STRLEN len;
c106c2be 2703 SV* sv;
7918f24d
NC
2704 PERL_ARGS_ASSERT_CALL_METHOD;
2705
46ca9bac 2706 len = strlen(methname);
c106c2be
RZ
2707 sv = flags & G_METHOD_NAMED
2708 ? sv_2mortal(newSVpvn_share(methname, len,0))
2709 : newSVpvn_flags(methname, len, SVs_TEMP);
46ca9bac 2710
c106c2be 2711 return call_sv(sv, flags | G_METHOD);
a0d0e21e
LW
2712}
2713
2714/* May be called with any of a CV, a GV, or an SV containing the name. */
954c1994
GS
2715/*
2716=for apidoc p||call_sv
2717
2718Performs a callback to the Perl sub whose name is in the SV. See
2719L<perlcall>.
2720
2721=cut
2722*/
2723
a0d0e21e 2724I32
001d637e 2725Perl_call_sv(pTHX_ SV *sv, VOL I32 flags)
8ac85365 2726 /* See G_* flags in cop.h */
a0d0e21e 2727{
27da23d5 2728 dVAR; dSP;
a0d0e21e 2729 LOGOP myop; /* fake syntax tree node */
c106c2be
RZ
2730 UNOP method_unop;
2731 SVOP method_svop;
aa689395 2732 I32 oldmark;
8ea43dc8 2733 VOL I32 retval = 0;
a0d0e21e 2734 I32 oldscope;
54310121 2735 bool oldcatch = CATCH_GET;
6224f72b 2736 int ret;
c4420975 2737 OP* const oldop = PL_op;
db36c5a1 2738 dJMPENV;
1e422769 2739
7918f24d
NC
2740 PERL_ARGS_ASSERT_CALL_SV;
2741
a0d0e21e
LW
2742 if (flags & G_DISCARD) {
2743 ENTER;
2744 SAVETMPS;
2745 }
2f8edad0
NC
2746 if (!(flags & G_WANT)) {
2747 /* Backwards compatibility - as G_SCALAR was 0, it could be omitted.
2748 */
2749 flags |= G_SCALAR;
2750 }
a0d0e21e 2751
aa689395 2752 Zero(&myop, 1, LOGOP);
f51d4af5 2753 if (!(flags & G_NOARGS))
aa689395 2754 myop.op_flags |= OPf_STACKED;
4f911530 2755 myop.op_flags |= OP_GIMME_REVERSE(flags);
462e5cf6 2756 SAVEOP();
533c011a 2757 PL_op = (OP*)&myop;
aa689395 2758
3280af22 2759 EXTEND(PL_stack_sp, 1);
c106c2be
RZ
2760 if (!(flags & G_METHOD_NAMED))
2761 *++PL_stack_sp = sv;
aa689395 2762 oldmark = TOPMARK;
3280af22 2763 oldscope = PL_scopestack_ix;
a0d0e21e 2764
3280af22 2765 if (PERLDB_SUB && PL_curstash != PL_debstash
36477c24 2766 /* Handle first BEGIN of -d. */
3280af22 2767 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
36477c24
PP
2768 /* Try harder, since this may have been a sighandler, thus
2769 * curstash may be meaningless. */
ea726b52 2770 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash)
491527d0 2771 && !(flags & G_NODEBUG))
5ff48db8 2772 myop.op_private |= OPpENTERSUB_DB;
a0d0e21e 2773
c106c2be
RZ
2774 if (flags & (G_METHOD|G_METHOD_NAMED)) {
2775 if ( flags & G_METHOD_NAMED ) {
2776 Zero(&method_svop, 1, SVOP);
2777 method_svop.op_next = (OP*)&myop;
2778 method_svop.op_ppaddr = PL_ppaddr[OP_METHOD_NAMED];
2779 method_svop.op_type = OP_METHOD_NAMED;
2780 method_svop.op_sv = sv;
2781 PL_op = (OP*)&method_svop;
2782 } else {
2783 Zero(&method_unop, 1, UNOP);
2784 method_unop.op_next = (OP*)&myop;
2785 method_unop.op_ppaddr = PL_ppaddr[OP_METHOD];
2786 method_unop.op_type = OP_METHOD;
2787 PL_op = (OP*)&method_unop;
2788 }
2789 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB];
2790 myop.op_type = OP_ENTERSUB;
2791
968b3946
GS
2792 }
2793
312caa8e 2794 if (!(flags & G_EVAL)) {
0cdb2077 2795 CATCH_SET(TRUE);
d6f07c05 2796 CALL_BODY_SUB((OP*)&myop);
312caa8e 2797 retval = PL_stack_sp - (PL_stack_base + oldmark);
0253cb41 2798 CATCH_SET(oldcatch);
312caa8e
CS
2799 }
2800 else {
d78bda3d 2801 myop.op_other = (OP*)&myop;
3280af22 2802 PL_markstack_ptr--;
edb2152a 2803 create_eval_scope(flags|G_FAKINGEVAL);
3280af22 2804 PL_markstack_ptr++;
a0d0e21e 2805
14dd3ad8 2806 JMPENV_PUSH(ret);
edb2152a 2807
6224f72b
GS
2808 switch (ret) {
2809 case 0:
14dd3ad8 2810 redo_body:
d6f07c05 2811 CALL_BODY_SUB((OP*)&myop);
312caa8e 2812 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2813 if (!(flags & G_KEEPERR)) {
ab69dbc2 2814 CLEAR_ERRSV();
8433848b 2815 }
a0d0e21e 2816 break;
6224f72b 2817 case 1:
f86702cc 2818 STATUS_ALL_FAILURE;
a0d0e21e 2819 /* FALL THROUGH */
6224f72b 2820 case 2:
a0d0e21e 2821 /* my_exit() was called */
03d9f026 2822 SET_CURSTASH(PL_defstash);
a0d0e21e 2823 FREETMPS;
14dd3ad8 2824 JMPENV_POP;
f86702cc 2825 my_exit_jump();
118e2215 2826 assert(0); /* NOTREACHED */
6224f72b 2827 case 3:
3280af22 2828 if (PL_restartop) {
febb3a6d 2829 PL_restartjmpenv = NULL;
533c011a 2830 PL_op = PL_restartop;
3280af22 2831 PL_restartop = 0;
312caa8e 2832 goto redo_body;
a0d0e21e 2833 }
3280af22 2834 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2835 if ((flags & G_WANT) == G_ARRAY)
a0d0e21e
LW
2836 retval = 0;
2837 else {
2838 retval = 1;
3280af22 2839 *++PL_stack_sp = &PL_sv_undef;
a0d0e21e 2840 }
312caa8e 2841 break;
a0d0e21e 2842 }
a0d0e21e 2843
edb2152a
NC
2844 if (PL_scopestack_ix > oldscope)
2845 delete_eval_scope();
14dd3ad8 2846 JMPENV_POP;
a0d0e21e 2847 }
1e422769 2848
a0d0e21e 2849 if (flags & G_DISCARD) {
3280af22 2850 PL_stack_sp = PL_stack_base + oldmark;
a0d0e21e
LW
2851 retval = 0;
2852 FREETMPS;
2853 LEAVE;
2854 }
533c011a 2855 PL_op = oldop;
a0d0e21e
LW
2856 return retval;
2857}
2858
6e72f9df 2859/* Eval a string. The G_EVAL flag is always assumed. */
8990e307 2860
954c1994
GS
2861/*
2862=for apidoc p||eval_sv
2863
be064c4a
DM
2864Tells Perl to C<eval> the string in the SV. It supports the same flags
2865as C<call_sv>, with the obvious exception of G_EVAL. See L<perlcall>.
954c1994
GS
2866
2867=cut
2868*/
2869
a0d0e21e 2870I32
864dbfa3 2871Perl_eval_sv(pTHX_ SV *sv, I32 flags)
ac27b0f5 2872
8ac85365 2873 /* See G_* flags in cop.h */
a0d0e21e 2874{
97aff369 2875 dVAR;
924508f0 2876 dSP;
a0d0e21e 2877 UNOP myop; /* fake syntax tree node */
8ea43dc8
SP
2878 VOL I32 oldmark = SP - PL_stack_base;
2879 VOL I32 retval = 0;
6224f72b 2880 int ret;
c4420975 2881 OP* const oldop = PL_op;
db36c5a1 2882 dJMPENV;
84902520 2883
7918f24d
NC
2884 PERL_ARGS_ASSERT_EVAL_SV;
2885
4633a7c4
LW
2886 if (flags & G_DISCARD) {
2887 ENTER;
2888 SAVETMPS;
2889 }
2890
462e5cf6 2891 SAVEOP();
533c011a 2892 PL_op = (OP*)&myop;
5ff48db8 2893 Zero(&myop, 1, UNOP);
3280af22
NIS
2894 EXTEND(PL_stack_sp, 1);
2895 *++PL_stack_sp = sv;
79072805 2896
4633a7c4
LW
2897 if (!(flags & G_NOARGS))
2898 myop.op_flags = OPf_STACKED;
6e72f9df 2899 myop.op_type = OP_ENTEREVAL;
4f911530 2900 myop.op_flags |= OP_GIMME_REVERSE(flags);
6e72f9df
PP
2901 if (flags & G_KEEPERR)
2902 myop.op_flags |= OPf_SPECIAL;
a1941760
DM
2903
2904 if (flags & G_RE_REPARSING)
2905 myop.op_private = (OPpEVAL_COPHH | OPpEVAL_RE_REPARSING);
4633a7c4 2906
dedbcade
DM
2907 /* fail now; otherwise we could fail after the JMPENV_PUSH but
2908 * before a PUSHEVAL, which corrupts the stack after a croak */
2909 TAINT_PROPER("eval_sv()");
2910
14dd3ad8 2911 JMPENV_PUSH(ret);
6224f72b
GS
2912 switch (ret) {
2913 case 0:
14dd3ad8 2914 redo_body:
2ba65d5f
DM
2915 if (PL_op == (OP*)(&myop)) {
2916 PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX);
2917 if (!PL_op)
2918 goto fail; /* failed in compilation */
2919 }
4aca2f62 2920 CALLRUNOPS(aTHX);
312caa8e 2921 retval = PL_stack_sp - (PL_stack_base + oldmark);
8433848b 2922 if (!(flags & G_KEEPERR)) {
ab69dbc2 2923 CLEAR_ERRSV();
8433848b 2924 }
4633a7c4 2925 break;
6224f72b 2926 case 1:
f86702cc 2927 STATUS_ALL_FAILURE;
4633a7c4 2928 /* FALL THROUGH */
6224f72b 2929 case 2:
4633a7c4 2930 /* my_exit() was called */
03d9f026 2931 SET_CURSTASH(PL_defstash);
4633a7c4 2932 FREETMPS;
14dd3ad8 2933 JMPENV_POP;
f86702cc 2934 my_exit_jump();
118e2215 2935 assert(0); /* NOTREACHED */
6224f72b 2936 case 3:
3280af22 2937 if (PL_restartop) {
febb3a6d 2938 PL_restartjmpenv = NULL;
533c011a 2939 PL_op = PL_restartop;
3280af22 2940 PL_restartop = 0;
312caa8e 2941 goto redo_body;
4633a7c4 2942 }
4aca2f62 2943 fail:
3280af22 2944 PL_stack_sp = PL_stack_base + oldmark;
51ce5529 2945 if ((flags & G_WANT) == G_ARRAY)
4633a7c4
LW
2946 retval = 0;
2947 else {
2948 retval = 1;
3280af22 2949 *++PL_stack_sp = &PL_sv_undef;
4633a7c4 2950 }
312caa8e 2951 break;
4633a7c4
LW
2952 }
2953
14dd3ad8 2954 JMPENV_POP;
4633a7c4 2955 if (flags & G_DISCARD) {
3280af22 2956 PL_stack_sp = PL_stack_base + oldmark;
4633a7c4
LW
2957 retval = 0;
2958 FREETMPS;
2959 LEAVE;
2960 }
533c011a 2961 PL_op = oldop;
4633a7c4
LW
2962 return retval;
2963}
2964
954c1994
GS
2965/*
2966=for apidoc p||eval_pv
2967
2968Tells Perl to C<eval> the given string and return an SV* result.
2969
2970=cut
2971*/
2972
137443ea 2973SV*
864dbfa3 2974Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
137443ea 2975{
97aff369 2976 dVAR;
137443ea
PP
2977 SV* sv = newSVpv(p, 0);
2978
7918f24d
NC
2979 PERL_ARGS_ASSERT_EVAL_PV;
2980
864dbfa3 2981 eval_sv(sv, G_SCALAR);
137443ea
PP
2982 SvREFCNT_dec(sv);
2983
ed1786ad
DD
2984 {
2985 dSP;
2986 sv = POPs;
2987 PUTBACK;
2988 }
137443ea 2989
eed484f9
DD
2990 /* just check empty string or undef? */
2991 if (croak_on_error) {
2992 SV * const errsv = ERRSV;
2993 if(SvTRUE_NN(errsv))
2994 /* replace with croak_sv? */
2995 Perl_croak_nocontext("%s", SvPV_nolen_const(errsv));
2d8e6c8d 2996 }
137443ea
PP
2997
2998 return sv;
2999}
3000
4633a7c4
LW
3001/* Require a module. */
3002
954c1994 3003/*
ccfc67b7
JH
3004=head1 Embedding Functions
3005
954c1994
GS
3006=for apidoc p||require_pv
3007
7d3fb230
BS
3008Tells Perl to C<require> the file named by the string argument. It is
3009analogous to the Perl code C<eval "require '$file'">. It's even
2307c6d0 3010implemented that way; consider using load_module instead.
954c1994 3011
7d3fb230 3012=cut */
954c1994 3013
4633a7c4 3014void
864dbfa3 3015Perl_require_pv(pTHX_ const char *pv)
4633a7c4 3016{
97aff369 3017 dVAR;
d3acc0f7 3018 dSP;
97aff369 3019 SV* sv;
7918f24d
NC
3020
3021 PERL_ARGS_ASSERT_REQUIRE_PV;
3022
e788e7d3 3023 PUSHSTACKi(PERLSI_REQUIRE);
d3acc0f7 3024 PUTBACK;
be41e5d9
NC
3025 sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0);
3026 eval_sv(sv_2mortal(sv), G_DISCARD);
d3acc0f7
JP
3027 SPAGAIN;
3028 POPSTACK;
79072805
LW
3029}
3030
76e3520e 3031STATIC void
b6f82619 3032S_usage(pTHX) /* XXX move this out into a module ? */
4633a7c4 3033{
ab821d7f 3034 /* This message really ought to be max 23 lines.
75c72d73 3035 * Removed -h because the user already knows that option. Others? */
fb73857a 3036
1566c39d
NC
3037 /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89
3038 minimum of 509 character string literals. */
27da23d5 3039 static const char * const usage_msg[] = {
1566c39d
NC
3040" -0[octal] specify record separator (\\0, if no argument)\n"
3041" -a autosplit mode with -n or -p (splits $_ into @F)\n"
3042" -C[number/list] enables the listed Unicode features\n"
3043" -c check syntax only (runs BEGIN and CHECK blocks)\n"
3044" -d[:debugger] run program under debugger\n"
3045" -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n",
3046" -e program one line of program (several -e's allowed, omit programfile)\n"
3047" -E program like -e, but enables all optional features\n"
3048" -f don't do $sitelib/sitecustomize.pl at startup\n"
3049" -F/pattern/ split() pattern for -a switch (//'s are optional)\n"
3050" -i[extension] edit <> files in place (makes backup if extension supplied)\n"
3051" -Idirectory specify @INC/#include directory (several -I's allowed)\n",
3052" -l[octal] enable line ending processing, specifies line terminator\n"
3053" -[mM][-]module execute \"use/no module...\" before executing program\n"
3054" -n assume \"while (<>) { ... }\" loop around program\n"
3055" -p assume loop like -n but print line also, like sed\n"
3056" -s enable rudimentary parsing for switches after programfile\n"
3057" -S look for programfile using PATH environment variable\n",
3058" -t enable tainting warnings\n"
3059" -T enable tainting checks\n"
3060" -u dump core after parsing program\n"
3061" -U allow unsafe operations\n"
3062" -v print version, patchlevel and license\n"
3063" -V[:variable] print configuration summary (or a single Config.pm variable)\n",
60eaec42 3064" -w enable many useful warnings\n"
1566c39d
NC
3065" -W enable all warnings\n"
3066" -x[directory] ignore text before #!perl line (optionally cd to directory)\n"
3067" -X disable all warnings\n"
3068" \n"
3069"Run 'perldoc perl' for more help with Perl.\n\n",
fb73857a
PP
3070NULL
3071};
27da23d5 3072 const char * const *p = usage_msg;
1566c39d 3073 PerlIO *out = PerlIO_stdout();
fb73857a 3074
1566c39d
NC
3075 PerlIO_printf(out,
3076 "\nUsage: %s [switches] [--] [programfile] [arguments]\n",
b6f82619 3077 PL_origargv[0]);
fb73857a 3078 while (*p)
1566c39d 3079 PerlIO_puts(out, *p++);
b6f82619 3080 my_exit(0);
4633a7c4
LW
3081}
3082
b4ab917c
DM
3083/* convert a string of -D options (or digits) into an int.
3084 * sets *s to point to the char after the options */
3085
3086#ifdef DEBUGGING
3087int
e1ec3a88 3088Perl_get_debug_opts(pTHX_ const char **s, bool givehelp)
b4ab917c 3089{
27da23d5 3090 static const char * const usage_msgd[] = {
651b8f1a
NC
3091 " Debugging flag values: (see also -d)\n"
3092 " p Tokenizing and parsing (with v, displays parse stack)\n"
3093 " s Stack snapshots (with v, displays all stacks)\n"
3094 " l Context (loop) stack processing\n"
3095 " t Trace execution\n"
3096 " o Method and overloading resolution\n",
3097 " c String/numeric conversions\n"
3098 " P Print profiling info, source file input state\n"
3099 " m Memory and SV allocation\n"
3100 " f Format processing\n"
3101 " r Regular expression parsing and execution\n"
3102 " x Syntax tree dump\n",
3103 " u Tainting checks\n"
3104 " H Hash dump -- usurps values()\n"
3105 " X Scratchpad allocation\n"
3106 " D Cleaning up\n"
56967202 3107 " S Op slab allocation\n"
651b8f1a
NC
3108 " T Tokenising\n"
3109 " R Include reference counts of dumped variables (eg when using -Ds)\n",
3110 " J Do not s,t,P-debug (Jump over) opcodes within package DB\n"
3111 " v Verbose: use in conjunction with other flags\n"
3112 " C Copy On Write\n"
3113 " A Consistency checks on internal structures\n"
3114 " q quiet - currently only suppresses the 'EXECUTING' message\n"
3115 " M trace smart match resolution\n"
3116 " B dump suBroutine definitions, including special Blocks like BEGIN\n",
e6e64d9b
JC
3117 NULL
3118 };
b4ab917c 3119 int i = 0;
7918f24d
NC
3120
3121 PERL_ARGS_ASSERT_GET_DEBUG_OPTS;
3122
b4ab917c
DM
3123 if (isALPHA(**s)) {
3124 /* if adding extra options, remember to update DEBUG_MASK */
cc8773c0 3125 static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMB";
b4ab917c 3126
0eb30aeb 3127 for (; isWORDCHAR(**s); (*s)++) {
c4420975 3128 const char * const d = strchr(debopts,**s);
b4ab917c
DM
3129 if (d)
3130 i |= 1 << (d - debopts);
3131 else if (ckWARN_d(WARN_DEBUGGING))
e6e64d9b
JC
3132 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3133 "invalid option -D%c, use -D'' to see choices\n", **s);
b4ab917c
DM
3134 }
3135 }
e6e64d9b 3136 else if (isDIGIT(**s)) {
b4ab917c 3137 i = atoi(*s);
0eb30aeb 3138 for (; isWORDCHAR(**s); (*s)++) ;
b4ab917c 3139 }
ddcf8bc1 3140 else if (givehelp) {
06e869a4 3141 const char *const *p = usage_msgd;
651b8f1a 3142 while (*p) PerlIO_puts(PerlIO_stdout(), *p++);
e6e64d9b 3143 }
b4ab917c
DM
3144# ifdef EBCDIC
3145 if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING))
3146 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
3147 "-Dp not implemented on this platform\n");
3148# endif
3149 return i;
3150}
3151#endif
3152
79072805
LW
3153/* This routine handles any switches that can be given during run */
3154
c7030b81
NC
3155const char *
3156Perl_moreswitches(pTHX_ const char *s)
79072805 3157{
27da23d5 3158 dVAR;
84c133a0 3159 UV rschar;
0544e6df 3160 const char option = *s; /* used to remember option in -m/-M code */
79072805 3161
7918f24d
NC
3162 PERL_ARGS_ASSERT_MORESWITCHES;
3163
79072805
LW
3164 switch (*s) {
3165 case '0':
a863c7d1 3166 {
f2095865 3167 I32 flags = 0;
a3b680e6 3168 STRLEN numlen;
f2095865
JH
3169
3170 SvREFCNT_dec(PL_rs);
3171 if (s[1] == 'x' && s[2]) {
a3b680e6 3172 const char *e = s+=2;
f2095865
JH
3173 U8 *tmps;
3174
a3b680e6
AL
3175 while (*e)
3176 e++;
f2095865
JH
3177 numlen = e - s;
3178 flags = PERL_SCAN_SILENT_ILLDIGIT;
3179 rschar = (U32)grok_hex(s, &numlen, &flags, NULL);
3180 if (s + numlen < e) {
3181 rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */
3182 numlen = 0;
3183 s--;
3184 }
396482e1 3185 PL_rs = newSVpvs("");
c5661c80 3186 SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1));
f2095865
JH
3187 tmps = (U8*)SvPVX(PL_rs);
3188 uvchr_to_utf8(tmps, rschar);
3189 SvCUR_set(PL_rs, UNISKIP(rschar));
3190 SvUTF8_on(PL_rs);
3191 }
3192 else {
3193 numlen = 4;
3194 rschar = (U32)grok_oct(s, &numlen, &flags, NULL);
3195 if (rschar & ~((U8)~0))
3196 PL_rs = &PL_sv_undef;
3197 else if (!rschar && numlen >= 2)
396482e1 3198 PL_rs = newSVpvs("");
f2095865
JH
3199 else {
3200 char ch = (char)rschar;
3201 PL_rs = newSVpvn(&ch, 1);
3202 }
3203 }
64ace3f8 3204 sv_setsv(get_sv("/", GV_ADD), PL_rs);
f2095865 3205 return s + numlen;
a863c7d1 3206 }
46487f74 3207 case 'C':
a05d7ebb 3208 s++;
dd374669 3209 PL_unicode = parse_unicode_opts( (const char **)&s );
5a22a2bb
NC
3210 if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
3211 PL_utf8cache = -1;
46487f74 3212 return s;
2304df62 3213 case 'F':
3280af22 3214 PL_minus_F = TRUE;
ebce5377
RGS
3215 PL_splitstr = ++s;
3216 while (*s && !isSPACE(*s)) ++s;
e49e380e 3217 PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr);
2304df62 3218 return s;
79072805 3219 case 'a':
3280af22 3220 PL_minus_a = TRUE;
79072805
LW
3221 s++;
3222 return s;
3223 case 'c':
3280af22 3224 PL_minus_c = TRUE;
79072805
LW
3225 s++;
3226 return s;
3227 case 'd':
f20b2998 3228 forbid_setid('d', FALSE);
4633a7c4 3229 s++;
2cbb2ee1
RGS
3230
3231 /* -dt indicates to the debugger that threads will be used */
0eb30aeb 3232 if (*s == 't' && !isWORDCHAR(s[1])) {
2cbb2ee1
RGS
3233 ++s;
3234 my_setenv("PERL5DB_THREADED", "1");
3235 }
3236
70c94a19
RR
3237 /* The following permits -d:Mod to accepts arguments following an =
3238 in the fashion that -MSome::Mod does. */
3239 if (*s == ':' || *s == '=') {
b19934fb
NC
3240 const char *start;
3241 const char *end;
3242 SV *sv;
3243
3244 if (*++s == '-') {
3245 ++s;
3246 sv = newSVpvs("no Devel::");
3247 } else {
3248 sv = newSVpvs("use Devel::");
3249 }
3250
3251 start = s;
3252 end = s + strlen(s);
f85893a1 3253
b19934fb 3254 /* We now allow -d:Module=Foo,Bar and -d:-Module */
0eb30aeb 3255 while(isWORDCHAR(*s) || *s==':') ++s;
70c94a19 3256 if (*s != '=')
f85893a1 3257 sv_catpvn(sv, start, end - start);
70c94a19
RR
3258 else {
3259 sv_catpvn(sv, start, s-start);
95a2b409
RGS
3260 /* Don't use NUL as q// delimiter here, this string goes in the
3261 * environment. */
3262 Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s);
70c94a19 3263 }
f85893a1 3264 s = end;
184f32ec 3265 my_setenv("PERL5DB", SvPV_nolen_const(sv));
c4db126b 3266 SvREFCNT_dec(sv);
4633a7c4 3267 }
ed094faf 3268 if (!PL_perldb) {
3280af22 3269 PL_perldb = PERLDB_ALL;
a0d0e21e 3270 init_debugger();
ed094faf 3271 }
79072805
LW
3272 return s;
3273 case 'D':
0453d815 3274 {
79072805 3275#ifdef DEBUGGING
f20b2998 3276 forbid_setid('D', FALSE);
b4ab917c 3277 s++;
dd374669 3278 PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG;
12a43e32 3279#else /* !DEBUGGING */
0453d815 3280 if (ckWARN_d(WARN_DEBUGGING))
9014280d 3281 Perl_warner(aTHX_ packWARN(WARN_DEBUGGING),
e6e64d9b 3282 "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n");
0eb30aeb 3283 for (s++; isWORDCHAR(*s); s++) ;
79072805 3284#endif
79072805 3285 return s;
0453d815 3286 }
4633a7c4 3287 case 'h':
b6f82619 3288 usage();
79072805 3289 case 'i':
43c5f42d 3290 Safefree(PL_inplace);
c030f24b
GH
3291#if defined(__CYGWIN__) /* do backup extension automagically */
3292 if (*(s+1) == '\0') {
c86a4f2e 3293 PL_inplace = savepvs(".bak");
c030f24b
GH
3294 return s+1;
3295 }
3296#endif /* __CYGWIN__ */
5ef5d758 3297 {
d4c19fe8 3298 const char * const start = ++s;
5ef5d758
NC
3299 while (*s && !isSPACE(*s))
3300 ++s;
3301
3302 PL_inplace = savepvn(start, s - start);
3303 }
7b8d334a 3304 if (*s) {
5ef5d758 3305 ++s;
7b8d334a 3306 if (*s == '-') /* Additional switches on #! line. */
5ef5d758 3307 s++;
7b8d334a 3308 }
fb73857a 3309 return s;
4e49a025 3310 case 'I': /* -I handled both here and in parse_body() */
f20b2998 3311 forbid_setid('I', FALSE);
fb73857a
PP
3312 ++s;
3313 while (*s && isSPACE(*s))
3314 ++s;
3315 if (*s) {
c7030b81 3316 const char *e, *p;
0df16ed7
GS
3317 p = s;
3318 /* ignore trailing spaces (possibly followed by other switches) */
3319 do {
3320 for (e = p; *e && !isSPACE(*e); e++) ;
3321 p = e;
3322 while (isSPACE(*p))
3323 p++;
3324 } while (*p && *p != '-');
55b4bc1c 3325 incpush(s, e-s,
e28f3139 3326 INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT);
0df16ed7
GS
3327 s = p;
3328 if (*s == '-')
3329 s++;
79072805
LW
3330 }
3331 else
a67e862a 3332 Perl_croak(aTHX_ "No directory specified for -I");
fb73857a 3333 return s;
79072805 3334 case 'l':
3280af22 3335 PL_minus_l = TRUE;
79072805 3336 s++;
7889fe52
NIS
3337 if (PL_ors_sv) {
3338 SvREFCNT_dec(PL_ors_sv);
a0714e2c 3339 PL_ors_sv = NULL;
7889fe52 3340 }
79072805 3341 if (isDIGIT(*s)) {
53305cf1 3342 I32 flags = 0;
a3b680e6 3343 STRLEN numlen;
396482e1 3344 PL_ors_sv = newSVpvs("\n");
53305cf1
NC
3345 numlen = 3 + (*s == '0');
3346 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL);
79072805
LW
3347 s += numlen;
3348 }
3349 else {
8bfdd7d9 3350 if (RsPARA(PL_rs)) {
396482e1 3351 PL_ors_sv = newSVpvs("\n\n");
7889fe52
NIS
3352 }
3353 else {
8bfdd7d9 3354 PL_ors_sv = newSVsv(PL_rs);
c07a80fd 3355 }
79072805
LW
3356 }
3357 return s;
1a30305b 3358 case 'M':
f20b2998 3359 forbid_setid('M', FALSE); /* XXX ? */
1a30305b
PP
3360 /* FALL THROUGH */
3361 case 'm':
f20b2998 3362 forbid_setid('m', FALSE); /* XXX ? */
1a30305b 3363 if (*++s) {
c7030b81 3364 const char *start;
b64cb68c 3365 const char *end;
11343788 3366 SV *sv;
e1ec3a88 3367 const char *use = "use ";
0544e6df 3368 bool colon = FALSE;
a5f75d66 3369 /* -M-foo == 'no foo' */
d0043bd1
NC
3370 /* Leading space on " no " is deliberate, to make both
3371 possibilities the same length. */
3372 if (*s == '-') { use = " no "; ++s; }
3373 sv = newSVpvn(use,4);
a5f75d66 3374 start = s;
1a30305b 3375 /* We allow -M'Module qw(Foo Bar)' */
0eb30aeb 3376 while(isWORDCHAR(*s) || *s==':') {
0544e6df
RB
3377 if( *s++ == ':' ) {
3378 if( *s == ':' )
3379 s++;
3380 else
3381 colon = TRUE;
3382 }
3383 }
3384 if (s == start)
3385 Perl_croak(aTHX_ "Module name required with -%c option",
3386 option);
3387 if (colon)
3388 Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: "
3389 "contains single ':'",
63da6837 3390 (int)(s - start), start, option);
b64cb68c 3391 end = s + strlen(s);
c07a80fd 3392 if (*s != '=') {
b64cb68c 3393 sv_catpvn(sv, start, end - start);
0544e6df 3394 if (option == 'm') {
c07a80fd 3395 if (*s != '\0')
cea2e8a9 3396 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
396482e1 3397 sv_catpvs( sv, " ()");
c07a80fd
PP
3398 }
3399 } else {
11343788 3400 sv_catpvn(sv, start, s-start);
b64cb68c
NC
3401 /* Use NUL as q''-delimiter. */
3402 sv_catpvs(sv, " split(/,/,q\0");
3403 ++s;
3404 sv_catpvn(sv, s, end - s);
396482e1 3405 sv_catpvs(sv, "\0)");
c07a80fd 3406 }
b64cb68c 3407 s = end;
29a861e7 3408 Perl_av_create_and_push(aTHX_ &PL_preambleav, sv);
1a30305b
PP
3409 }
3410 else
0544e6df 3411 Perl_croak(aTHX_ "Missing argument to -%c", option);
1a30305b 3412 return s;
79072805 3413 case 'n':
3280af22 3414 PL_minus_n = TRUE;
79072805
LW
3415 s++;
3416 return s;
3417 case 'p':
3280af22 3418 PL_minus_p = TRUE;
79072805
LW
3419 s++;
3420 return s;
3421 case 's':
f20b2998 3422 forbid_setid('s', FALSE);
3280af22 3423 PL_doswitches = TRUE;
79072805
LW
3424 s++;
3425 return s;
6537fe72 3426 case 't':
27a6968b 3427 case 'T':
284167a5
SM
3428#if SILENT_NO_TAINT_SUPPORT
3429 /* silently ignore */
3430#elif NO_TAINT_SUPPORT
3231f579 3431 Perl_croak_nocontext("This perl was compiled without taint support. "
284167a5
SM
3432 "Cowardly refusing to run with -t or -T flags");
3433#else
3434 if (!TAINTING_get)
27a6968b 3435 TOO_LATE_FOR(*s);
284167a5 3436#endif
6537fe72 3437 s++;
463ee0b2 3438 return s;
79072805 3439 case 'u':
3280af22 3440 PL_do_undump = TRUE;
79072805
LW
3441 s++;
3442 return s;
3443 case 'U':
3280af22 3444 PL_unsafe = TRUE;
79072805
LW
3445 s++;
3446 return s;
3447 case 'v':
c4bc78d9
NC
3448 minus_v();
3449 case 'w':
3450 if (! (PL_dowarn & G_WARN_ALL_MASK)) {
3451 PL_dowarn |= G_WARN_ON;
3452 }
3453 s++;
3454 return s;
3455 case 'W':
3456 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
3457 if (!specialWARN(PL_compiling.cop_warnings))
3458 PerlMemShared_free(PL_compiling.cop_warnings);
3459 PL_compiling.cop_warnings = pWARN_ALL ;
3460 s++;
3461 return s;
3462 case 'X':
3463 PL_dowarn = G_WARN_ALL_OFF;
3464 if (!specialWARN(PL_compiling.cop_warnings))
3465 PerlMemShared_free(PL_compiling.cop_warnings);
3466 PL_compiling.cop_warnings = pWARN_NONE ;
3467 s++;
3468 return s;
3469 case '*':
3470 case ' ':
3471 while( *s == ' ' )
3472 ++s;
3473 if (s[0] == '-') /* Additional switches on #! line. */
3474 return s+1;
3475 break;
3476 case '-':
3477 case 0:
3478#if defined(WIN32) || !defined(PERL_STRICT_CR)
3479 case '\r':
3480#endif
3481 case '\n':
3482 case '\t':
3483 break;
3484#ifdef ALTERNATE_SHEBANG
3485 case 'S': /* OS/2 needs -S on "extproc" line. */
3486 break;
3487#endif
4bb78d63
CB
3488 case 'e': case 'f': case 'x': case 'E':
3489#ifndef ALTERNATE_SHEBANG
3490 case 'S':
3491#endif
3492 case 'V':
c4bc78d9 3493 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
b7e077d0
FC
3494 default:
3495 Perl_croak(aTHX_
3496 "Unrecognized switch: -%.1s (-h will show valid options)",s
3497 );
c4bc78d9
NC
3498 }
3499 return NULL;
3500}
3501
3502
3503STATIC void
3504S_minus_v(pTHX)
3505{
fc3381af 3506 PerlIO * PIO_stdout;
d7aa5382 3507 if (!sv_derived_from(PL_patchlevel, "version"))
ac0e6a2f 3508 upg_version(PL_patchlevel, TRUE);
46807d8e
YO
3509 {
3510 SV* level= vstringify(PL_patchlevel);
3511#ifdef PERL_PATCHNUM
23d483e2
NC
3512# ifdef PERL_GIT_UNCOMMITTED_CHANGES
3513 SV *num = newSVpvs(PERL_PATCHNUM "*");
3514# else
3515 SV *num = newSVpvs(PERL_PATCHNUM);
3516# endif
fc3381af
DD
3517 {
3518 STRLEN level_len, num_len;
3519 char * level_str, * num_str;
3520 num_str = SvPV(num, num_len);
3521 level_str = SvPV(level, level_len);
3522 if (num_len>=level_len && strnEQ(num_str,level_str,level_len)) {
3523 SvREFCNT_dec(level);
3524 level= num;
3525 } else {
3526 Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num);
3527 SvREFCNT_dec(num);
3528 }
46807d8e
YO
3529 }
3530 #endif
fc3381af
DD
3531 PIO_stdout = PerlIO_stdout();
3532 PerlIO_printf(PIO_stdout,
ded326e4
DG
3533 "\nThis is perl " STRINGIFY(PERL_REVISION)
3534 ", version " STRINGIFY(PERL_VERSION)
3535 ", subversion " STRINGIFY(PERL_SUBVERSION)
3536 " (%"SVf") built for " ARCHNAME, level
3537 );
46807d8e
YO
3538 SvREFCNT_dec(level);
3539 }
fb73857a
PP
3540#if defined(LOCAL_PATCH_COUNT)
3541 if (LOCAL_PATCH_COUNT > 0)