Commit | Line | Data |
---|---|---|
4b88f280 | 1 | #line 2 "perl.c" |
a0d0e21e LW |
2 | /* perl.c |
3 | * | |
737f4459 | 4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
2eee27d7 | 5 | * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
010d7370 | 6 | * by Larry Wall and others |
a687059c | 7 | * |
352d5a3a LW |
8 | * You may distribute under the terms of either the GNU General Public |
9 | * License or the Artistic License, as specified in the README file. | |
a687059c | 10 | * |
8d063cd8 LW |
11 | */ |
12 | ||
a0d0e21e | 13 | /* |
4ac71550 TC |
14 | * A ship then new they built for him |
15 | * of mithril and of elven-glass | |
cdad3b53 | 16 | * --from Bilbo's song of EƤrendil |
4ac71550 TC |
17 | * |
18 | * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 19 | */ |
45d8adaa | 20 | |
166f8a29 DM |
21 | /* This file contains the top-level functions that are used to create, use |
22 | * and destroy a perl interpreter, plus the functions used by XS code to | |
23 | * call back into perl. Note that it does not contain the actual main() | |
ddfa107c | 24 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
25 | */ |
26 | ||
c44493f1 | 27 | #if defined(PERL_IS_MINIPERL) && !defined(USE_SITECUSTOMIZE) |
43c0c913 NC |
28 | # define USE_SITECUSTOMIZE |
29 | #endif | |
30 | ||
378cc40b | 31 | #include "EXTERN.h" |
864dbfa3 | 32 | #define PERL_IN_PERL_C |
378cc40b | 33 | #include "perl.h" |
e3321bb0 | 34 | #include "patchlevel.h" /* for local_patches */ |
4a5df386 | 35 | #include "XSUB.h" |
378cc40b | 36 | |
011f1a1a JH |
37 | #ifdef NETWARE |
38 | #include "nwutil.h" | |
011f1a1a JH |
39 | #endif |
40 | ||
2982a345 NC |
41 | #ifdef USE_KERN_PROC_PATHNAME |
42 | # include <sys/sysctl.h> | |
43 | #endif | |
44 | ||
ae60cb46 NC |
45 | #ifdef USE_NSGETEXECUTABLEPATH |
46 | # include <mach-o/dyld.h> | |
47 | #endif | |
48 | ||
2aa47728 | 49 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
bf357333 NC |
50 | # ifdef I_SYSUIO |
51 | # include <sys/uio.h> | |
52 | # endif | |
53 | ||
54 | union control_un { | |
55 | struct cmsghdr cm; | |
56 | char control[CMSG_SPACE(sizeof(int))]; | |
57 | }; | |
58 | ||
2aa47728 NC |
59 | #endif |
60 | ||
5311654c JH |
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 | 70 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 PP |
71 | #endif |
72 | ||
acfe0abc | 73 | static 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 | 91 | static void |
daa7d858 | 92 | S_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 NC |
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); |
016af4f1 DM |
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 NC |
114 | PERL_SET_THX(my_perl); |
115 | } | |
116 | } | |
06d86050 | 117 | |
cbec8ebe DM |
118 | |
119 | /* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */ | |
120 | ||
121 | void | |
122 | Perl_sys_init(int* argc, char*** argv) | |
123 | { | |
4fc0badb | 124 | dVAR; |
7918f24d NC |
125 | |
126 | PERL_ARGS_ASSERT_SYS_INIT; | |
127 | ||
cbec8ebe DM |
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 | ||
133 | void | |
134 | Perl_sys_init3(int* argc, char*** argv, char*** env) | |
135 | { | |
4fc0badb | 136 | dVAR; |
7918f24d NC |
137 | |
138 | PERL_ARGS_ASSERT_SYS_INIT3; | |
139 | ||
cbec8ebe DM |
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 | ||
146 | void | |
d0820ef1 | 147 | Perl_sys_term() |
cbec8ebe | 148 | { |
4fc0badb | 149 | dVAR; |
bf81751b DM |
150 | if (!PL_veto_cleanup) { |
151 | PERL_SYS_TERM_BODY(); | |
152 | } | |
cbec8ebe DM |
153 | } |
154 | ||
155 | ||
32e30700 GS |
156 | #ifdef PERL_IMPLICIT_SYS |
157 | PerlInterpreter * | |
7766f137 GS |
158 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
159 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
160 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
161 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
162 | struct IPerlProc* ipP) | |
163 | { | |
164 | PerlInterpreter *my_perl; | |
7918f24d NC |
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); |
32e30700 GS |
171 | Zero(my_perl, 1, PerlInterpreter); |
172 | PL_Mem = ipM; | |
7766f137 GS |
173 | PL_MemShared = ipMS; |
174 | PL_MemParse = ipMP; | |
32e30700 GS |
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 | |
32e30700 GS |
183 | return my_perl; |
184 | } | |
185 | #else | |
954c1994 GS |
186 | |
187 | /* | |
ccfc67b7 JH |
188 | =head1 Embedding Functions |
189 | ||
954c1994 GS |
190 | =for apidoc perl_alloc |
191 | ||
192 | Allocates a new Perl interpreter. See L<perlembed>. | |
193 | ||
194 | =cut | |
195 | */ | |
196 | ||
93a17b20 | 197 | PerlInterpreter * |
cea2e8a9 | 198 | perl_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); |
7cb608b5 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 GS |
216 | /* |
217 | =for apidoc perl_construct | |
218 | ||
219 | Initializes a new Perl interpreter. See L<perlembed>. | |
220 | ||
221 | =cut | |
222 | */ | |
223 | ||
79072805 | 224 | void |
0cb96387 | 225 | perl_construct(pTHXx) |
79072805 | 226 | { |
27da23d5 | 227 | dVAR; |
7918f24d NC |
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 DM |
239 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
240 | ||
0d96b528 | 241 | init_constants(); |
34caed6d DM |
242 | |
243 | SvREADONLY_on(&PL_sv_placeholder); | |
fe54beba | 244 | SvREFCNT(&PL_sv_placeholder) = SvREFCNT_IMMORTAL; |
34caed6d DM |
245 | |
246 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; | |
ca0c25f6 | 247 | #ifdef PERL_USES_PL_PIDSTATUS |
34caed6d | 248 | PL_pidstatus = newHV(); |
ca0c25f6 | 249 | #endif |
79072805 | 250 | |
396482e1 | 251 | PL_rs = newSVpvs("\n"); |
dc92893f | 252 | |
cea2e8a9 | 253 | init_stacks(); |
79072805 | 254 | |
748a9306 | 255 | init_ids(); |
a5f75d66 | 256 | |
312caa8e | 257 | JMPENV_BOOTSTRAP; |
f86702cc PP |
258 | STATUS_ALL_SUCCESS; |
259 | ||
0672f40e | 260 | init_i18nl10n(1); |
36477c24 | 261 | SET_NUMERIC_STANDARD(); |
0b5b802d | 262 | |
ab821d7f | 263 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 264 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f PP |
265 | #endif |
266 | ||
52853b95 GS |
267 | #ifdef HAVE_INTERP_INTERN |
268 | sys_intern_init(); | |
269 | #endif | |
270 | ||
3a1ee7e8 | 271 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 272 | |
3280af22 NIS |
273 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
274 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 275 | PL_errors = newSVpvs(""); |
76f68e9b MHM |
276 | sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */ |
277 | sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */ | |
278 | sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */ | |
1fcf4c12 | 279 | #ifdef USE_ITHREADS |
402d2eb1 NC |
280 | /* First entry is a list of empty elements. It needs to be initialised |
281 | else all hell breaks loose in S_find_uninit_var(). */ | |
282 | Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs("")); | |
13137afc | 283 | PL_regex_pad = AvARRAY(PL_regex_padav); |
d4d03940 | 284 | Newxz(PL_stashpad, PL_stashpadmax, HV *); |
1fcf4c12 | 285 | #endif |
e5dd39fc | 286 | #ifdef USE_REENTRANT_API |
59bd0823 | 287 | Perl_reentrant_init(aTHX); |
e5dd39fc | 288 | #endif |
7dc86639 YO |
289 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
290 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
291 | * This MUST be done before any hash stores or fetches take place. | |
292 | * If you set PL_hash_seed (and presumably also PL_hash_seed_set) | |
293 | * yourself, it is your responsibility to provide a good random seed! | |
294 | * You can also define PERL_HASH_SEED in compile time, see hv.h. | |
295 | * | |
296 | * XXX: fix this comment */ | |
297 | if (PL_hash_seed_set == FALSE) { | |
298 | Perl_get_hash_seed(aTHX_ PL_hash_seed); | |
299 | PL_hash_seed_set= TRUE; | |
300 | } | |
301 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
3d47000e AB |
302 | |
303 | /* Note that strtab is a rather special HV. Assumptions are made | |
304 | about not iterating on it, and not adding tie magic to it. | |
305 | It is properly deallocated in perl_destruct() */ | |
306 | PL_strtab = newHV(); | |
307 | ||
3d47000e AB |
308 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
309 | hv_ksplit(PL_strtab, 512); | |
310 | ||
a38ab475 RZ |
311 | Zero(PL_sv_consts, SV_CONSTS_COUNT, SV*); |
312 | ||
0631ea03 AB |
313 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
314 | _dyld_lookup_and_bind | |
315 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
316 | #endif /* environ */ | |
317 | ||
2f42fcb0 JH |
318 | #ifndef PERL_MICRO |
319 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 320 | PL_origenviron = environ; |
2f42fcb0 | 321 | # endif |
0631ea03 AB |
322 | #endif |
323 | ||
5311654c | 324 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 325 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
326 | * The HZ if not originally defined has been by now |
327 | * been defined as CLK_TCK, if available. */ | |
b6c36746 | 328 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) |
5311654c JH |
329 | PL_clocktick = sysconf(_SC_CLK_TCK); |
330 | if (PL_clocktick <= 0) | |
331 | #endif | |
332 | PL_clocktick = HZ; | |
333 | ||
081fc587 AB |
334 | PL_stashcache = newHV(); |
335 | ||
e8e3635e | 336 | PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING); |
1e8125c6 | 337 | PL_apiversion = newSVpvs("v" PERL_API_VERSION_STRING); |
d7aa5382 | 338 | |
27da23d5 JH |
339 | #ifdef HAS_MMAP |
340 | if (!PL_mmap_page_size) { | |
341 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
342 | { | |
343 | SETERRNO(0, SS_NORMAL); | |
344 | # ifdef _SC_PAGESIZE | |
345 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
346 | # else | |
347 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
348 | # endif | |
349 | if ((long) PL_mmap_page_size < 0) { | |
350 | if (errno) { | |
44f8325f | 351 | SV * const error = ERRSV; |
d4c19fe8 | 352 | SvUPGRADE(error, SVt_PV); |
0510663f | 353 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
354 | } |
355 | else | |
356 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
357 | } | |
358 | } | |
359 | #else | |
360 | # ifdef HAS_GETPAGESIZE | |
361 | PL_mmap_page_size = getpagesize(); | |
362 | # else | |
363 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
364 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
365 | # endif | |
366 | # endif | |
367 | #endif | |
368 | if (PL_mmap_page_size <= 0) | |
369 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
370 | (IV) PL_mmap_page_size); | |
371 | } | |
372 | #endif /* HAS_MMAP */ | |
373 | ||
374 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
375 | PL_timesbase.tms_utime = 0; | |
376 | PL_timesbase.tms_stime = 0; | |
377 | PL_timesbase.tms_cutime = 0; | |
378 | PL_timesbase.tms_cstime = 0; | |
379 | #endif | |
380 | ||
7d113631 NC |
381 | PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME)); |
382 | ||
a3e6e81e | 383 | PL_registered_mros = newHV(); |
9e169432 NC |
384 | /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */ |
385 | HvMAX(PL_registered_mros) = 0; | |
a3e6e81e | 386 | |
8990e307 | 387 | ENTER; |
79072805 LW |
388 | } |
389 | ||
954c1994 | 390 | /* |
62375a60 NIS |
391 | =for apidoc nothreadhook |
392 | ||
393 | Stub that provides thread hook for perl_destruct when there are | |
394 | no threads. | |
395 | ||
396 | =cut | |
397 | */ | |
398 | ||
399 | int | |
4e9e3734 | 400 | Perl_nothreadhook(pTHX) |
62375a60 | 401 | { |
96a5add6 | 402 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
403 | return 0; |
404 | } | |
405 | ||
41e4abd8 NC |
406 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
407 | void | |
408 | Perl_dump_sv_child(pTHX_ SV *sv) | |
409 | { | |
410 | ssize_t got; | |
bf357333 NC |
411 | const int sock = PL_dumper_fd; |
412 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
413 | union control_un control; |
414 | struct msghdr msg; | |
808ad2d0 | 415 | struct iovec vec[2]; |
bf357333 | 416 | struct cmsghdr *cmptr; |
808ad2d0 NC |
417 | int returned_errno; |
418 | unsigned char buffer[256]; | |
41e4abd8 | 419 | |
7918f24d NC |
420 | PERL_ARGS_ASSERT_DUMP_SV_CHILD; |
421 | ||
bf357333 | 422 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
423 | return; |
424 | ||
425 | PerlIO_flush(Perl_debug_log); | |
426 | ||
bf357333 NC |
427 | /* All these shenanigans are to pass a file descriptor over to our child for |
428 | it to dump out to. We can't let it hold open the file descriptor when it | |
429 | forks, as the file descriptor it will dump to can turn out to be one end | |
430 | of pipe that some other process will wait on for EOF. (So as it would | |
b293a5f8 | 431 | be open, the wait would be forever.) */ |
bf357333 NC |
432 | |
433 | msg.msg_control = control.control; | |
434 | msg.msg_controllen = sizeof(control.control); | |
435 | /* We're a connected socket so we don't need a destination */ | |
436 | msg.msg_name = NULL; | |
437 | msg.msg_namelen = 0; | |
438 | msg.msg_iov = vec; | |
808ad2d0 | 439 | msg.msg_iovlen = 1; |
bf357333 NC |
440 | |
441 | cmptr = CMSG_FIRSTHDR(&msg); | |
442 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
443 | cmptr->cmsg_level = SOL_SOCKET; | |
444 | cmptr->cmsg_type = SCM_RIGHTS; | |
445 | *((int *)CMSG_DATA(cmptr)) = 1; | |
446 | ||
447 | vec[0].iov_base = (void*)&sv; | |
448 | vec[0].iov_len = sizeof(sv); | |
449 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
450 | |
451 | if(got < 0) { | |
bf357333 | 452 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
453 | abort(); |
454 | } | |
bf357333 NC |
455 | if(got < sizeof(sv)) { |
456 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
457 | abort(); |
458 | } | |
459 | ||
808ad2d0 NC |
460 | /* Return protocol is |
461 | int: errno value | |
462 | unsigned char: length of location string (0 for empty) | |
463 | unsigned char*: string (not terminated) | |
464 | */ | |
465 | vec[0].iov_base = (void*)&returned_errno; | |
466 | vec[0].iov_len = sizeof(returned_errno); | |
467 | vec[1].iov_base = buffer; | |
468 | vec[1].iov_len = 1; | |
469 | ||
470 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
471 | |
472 | if(got < 0) { | |
473 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 474 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
475 | abort(); |
476 | } | |
808ad2d0 | 477 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 478 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 479 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
480 | abort(); |
481 | } | |
482 | ||
808ad2d0 NC |
483 | if (*buffer) { |
484 | got = read(sock, buffer + 1, *buffer); | |
485 | if(got < 0) { | |
486 | perror("Debug leaking scalars parent read 2 failed"); | |
487 | PerlIO_flush(PerlIO_stderr()); | |
488 | abort(); | |
489 | } | |
490 | ||
491 | if(got < *buffer) { | |
492 | perror("Debug leaking scalars parent short read 2"); | |
493 | PerlIO_flush(PerlIO_stderr()); | |
494 | abort(); | |
495 | } | |
496 | } | |
497 | ||
498 | if (returned_errno || *buffer) { | |
499 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
500 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
501 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
502 | } |
503 | } | |
504 | #endif | |
505 | ||
62375a60 | 506 | /* |
954c1994 GS |
507 | =for apidoc perl_destruct |
508 | ||
509 | Shuts down a Perl interpreter. See L<perlembed>. | |
510 | ||
511 | =cut | |
512 | */ | |
513 | ||
31d77e54 | 514 | int |
0cb96387 | 515 | perl_destruct(pTHXx) |
79072805 | 516 | { |
27da23d5 | 517 | dVAR; |
be2ea8ed | 518 | VOL signed char destruct_level; /* see possible values in intrpvar.h */ |
a0d0e21e | 519 | HV *hv; |
2aa47728 | 520 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
521 | pid_t child; |
522 | #endif | |
9c0b6888 | 523 | int i; |
8990e307 | 524 | |
7918f24d NC |
525 | PERL_ARGS_ASSERT_PERL_DESTRUCT; |
526 | #ifndef MULTIPLICITY | |
ed6c66dd | 527 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 528 | #endif |
9d4ba2ae | 529 | |
3d22c4f0 GG |
530 | assert(PL_scopestack_ix == 1); |
531 | ||
7766f137 GS |
532 | /* wait for all pseudo-forked children to finish */ |
533 | PERL_WAIT_FOR_CHILDREN; | |
534 | ||
3280af22 | 535 | destruct_level = PL_perl_destruct_level; |
36e77d41 | 536 | #if defined(DEBUGGING) || defined(PERL_TRACK_MEMPOOL) |
4633a7c4 | 537 | { |
9d4ba2ae AL |
538 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
539 | if (s) { | |
36e77d41 DD |
540 | const int i = atoi(s); |
541 | #ifdef DEBUGGING | |
542 | if (destruct_level < i) destruct_level = i; | |
543 | #endif | |
544 | #ifdef PERL_TRACK_MEMPOOL | |
545 | /* RT #114496, for perl_free */ | |
546 | PL_perl_destruct_level = i; | |
547 | #endif | |
5f05dabc | 548 | } |
4633a7c4 LW |
549 | } |
550 | #endif | |
551 | ||
27da23d5 | 552 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
553 | dJMPENV; |
554 | int x = 0; | |
555 | ||
556 | JMPENV_PUSH(x); | |
1b6737cc | 557 | PERL_UNUSED_VAR(x); |
9ebf26ad | 558 | if (PL_endav && !PL_minus_c) { |
ca7b837b | 559 | PERL_SET_PHASE(PERL_PHASE_END); |
f3faeb53 | 560 | call_list(PL_scopestack_ix, PL_endav); |
9ebf26ad | 561 | } |
f3faeb53 | 562 | JMPENV_POP; |
26f423df | 563 | } |
f3faeb53 | 564 | LEAVE; |
a0d0e21e | 565 | FREETMPS; |
3d22c4f0 | 566 | assert(PL_scopestack_ix == 0); |
a0d0e21e | 567 | |
e00b64d4 | 568 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 569 | my_fflush_all(); |
e00b64d4 | 570 | |
16c91539 | 571 | if (PL_threadhook(aTHX)) { |
62375a60 | 572 | /* Threads hook has vetoed further cleanup */ |
c301d606 | 573 | PL_veto_cleanup = TRUE; |
37038d91 | 574 | return STATUS_EXIT; |
62375a60 NIS |
575 | } |
576 | ||
2aa47728 NC |
577 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
578 | if (destruct_level != 0) { | |
579 | /* Fork here to create a child. Our child's job is to preserve the | |
580 | state of scalars prior to destruction, so that we can instruct it | |
581 | to dump any scalars that we later find have leaked. | |
582 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
583 | fail gracefully */ | |
584 | int fd[2]; | |
585 | ||
586 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
587 | perror("Debug leaking scalars socketpair failed"); | |
588 | abort(); | |
589 | } | |
590 | ||
591 | child = fork(); | |
592 | if(child == -1) { | |
593 | perror("Debug leaking scalars fork failed"); | |
594 | abort(); | |
595 | } | |
596 | if (!child) { | |
597 | /* We are the child */ | |
3125a5a4 NC |
598 | const int sock = fd[1]; |
599 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
600 | int f; | |
808ad2d0 NC |
601 | const char *where; |
602 | /* Our success message is an integer 0, and a char 0 */ | |
b61433a9 | 603 | static const char success[sizeof(int) + 1] = {0}; |
3125a5a4 | 604 | |
2aa47728 | 605 | close(fd[0]); |
2aa47728 | 606 | |
3125a5a4 NC |
607 | /* We need to close all other file descriptors otherwise we end up |
608 | with interesting hangs, where the parent closes its end of a | |
609 | pipe, and sits waiting for (another) child to terminate. Only | |
610 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
611 | we also have the far end of the pipe open. We even need to |
612 | close the debugging fd, because sometimes it happens to be one | |
613 | end of a pipe, and a process is waiting on the other end for | |
614 | EOF. Normally it would be closed at some point earlier in | |
615 | destruction, but if we happen to cause the pipe to remain open, | |
616 | EOF never occurs, and we get an infinite hang. Hence all the | |
617 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
618 | |
619 | f = sysconf(_SC_OPEN_MAX); | |
620 | if(f < 0) { | |
808ad2d0 NC |
621 | where = "sysconf failed"; |
622 | goto abort; | |
3125a5a4 NC |
623 | } |
624 | while (f--) { | |
625 | if (f == sock) | |
626 | continue; | |
3125a5a4 NC |
627 | close(f); |
628 | } | |
629 | ||
2aa47728 NC |
630 | while (1) { |
631 | SV *target; | |
bf357333 NC |
632 | union control_un control; |
633 | struct msghdr msg; | |
634 | struct iovec vec[1]; | |
635 | struct cmsghdr *cmptr; | |
636 | ssize_t got; | |
637 | int got_fd; | |
638 | ||
639 | msg.msg_control = control.control; | |
640 | msg.msg_controllen = sizeof(control.control); | |
641 | /* We're a connected socket so we don't need a source */ | |
642 | msg.msg_name = NULL; | |
643 | msg.msg_namelen = 0; | |
644 | msg.msg_iov = vec; | |
645 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
646 | ||
647 | vec[0].iov_base = (void*)⌖ | |
648 | vec[0].iov_len = sizeof(target); | |
649 | ||
650 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
651 | |
652 | if(got == 0) | |
653 | break; | |
654 | if(got < 0) { | |
808ad2d0 NC |
655 | where = "recv failed"; |
656 | goto abort; | |
2aa47728 NC |
657 | } |
658 | if(got < sizeof(target)) { | |
808ad2d0 NC |
659 | where = "short recv"; |
660 | goto abort; | |
2aa47728 | 661 | } |
bf357333 | 662 | |
808ad2d0 NC |
663 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
664 | where = "no cmsg"; | |
665 | goto abort; | |
666 | } | |
667 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
668 | where = "wrong cmsg_len"; | |
669 | goto abort; | |
670 | } | |
671 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
672 | where = "wrong cmsg_level"; | |
673 | goto abort; | |
674 | } | |
675 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
676 | where = "wrong cmsg_type"; | |
677 | goto abort; | |
678 | } | |
bf357333 NC |
679 | |
680 | got_fd = *(int*)CMSG_DATA(cmptr); | |
681 | /* For our last little bit of trickery, put the file descriptor | |
682 | back into Perl_debug_log, as if we never actually closed it | |
683 | */ | |
808ad2d0 NC |
684 | if(got_fd != debug_fd) { |
685 | if (dup2(got_fd, debug_fd) == -1) { | |
686 | where = "dup2"; | |
687 | goto abort; | |
688 | } | |
689 | } | |
2aa47728 | 690 | sv_dump(target); |
bf357333 | 691 | |
2aa47728 NC |
692 | PerlIO_flush(Perl_debug_log); |
693 | ||
808ad2d0 | 694 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
695 | |
696 | if(got < 0) { | |
808ad2d0 NC |
697 | where = "write failed"; |
698 | goto abort; | |
2aa47728 | 699 | } |
808ad2d0 NC |
700 | if(got < sizeof(success)) { |
701 | where = "short write"; | |
702 | goto abort; | |
2aa47728 NC |
703 | } |
704 | } | |
705 | _exit(0); | |
808ad2d0 NC |
706 | abort: |
707 | { | |
708 | int send_errno = errno; | |
709 | unsigned char length = (unsigned char) strlen(where); | |
710 | struct iovec failure[3] = { | |
711 | {(void*)&send_errno, sizeof(send_errno)}, | |
712 | {&length, 1}, | |
713 | {(void*)where, length} | |
714 | }; | |
715 | int got = writev(sock, failure, 3); | |
716 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
717 | in the parent if we try to read from the socketpair after the | |
718 | child has exited, even if there was data to read. | |
719 | So sleep a bit to give the parent a fighting chance of | |
720 | reading the data. */ | |
721 | sleep(2); | |
722 | _exit((got == -1) ? errno : 0); | |
723 | } | |
bf357333 | 724 | /* End of child. */ |
2aa47728 | 725 | } |
41e4abd8 | 726 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
727 | close(fd[1]); |
728 | } | |
729 | #endif | |
730 | ||
ff0cee69 PP |
731 | /* We must account for everything. */ |
732 | ||
733 | /* Destroy the main CV and syntax tree */ | |
37e77c23 FC |
734 | /* Set PL_curcop now, because destroying ops can cause new SVs |
735 | to be generated in Perl_pad_swipe, and when running with | |
736 | -DDEBUG_LEAKING_SCALARS they expect PL_curcop to point to a valid | |
737 | op from which the filename structure member is copied. */ | |
17fbfdf6 | 738 | PL_curcop = &PL_compiling; |
3280af22 | 739 | if (PL_main_root) { |
4e380990 DM |
740 | /* ensure comppad/curpad to refer to main's pad */ |
741 | if (CvPADLIST(PL_main_cv)) { | |
742 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
743 | } | |
3280af22 | 744 | op_free(PL_main_root); |
5f66b61c | 745 | PL_main_root = NULL; |
a0d0e21e | 746 | } |
5f66b61c | 747 | PL_main_start = NULL; |
aac9d523 DM |
748 | /* note that PL_main_cv isn't usually actually freed at this point, |
749 | * due to the CvOUTSIDE refs from subs compiled within it. It will | |
750 | * get freed once all the subs are freed in sv_clean_all(), for | |
751 | * destruct_level > 0 */ | |
3280af22 | 752 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 753 | PL_main_cv = NULL; |
ca7b837b | 754 | PERL_SET_PHASE(PERL_PHASE_DESTRUCT); |
ff0cee69 | 755 | |
13621cfb NIS |
756 | /* Tell PerlIO we are about to tear things apart in case |
757 | we have layers which are using resources that should | |
758 | be cleaned up now. | |
759 | */ | |
760 | ||
761 | PerlIO_destruct(aTHX); | |
762 | ||
ddf23d4a SM |
763 | /* |
764 | * Try to destruct global references. We do this first so that the | |
765 | * destructors and destructees still exist. Some sv's might remain. | |
766 | * Non-referenced objects are on their own. | |
767 | */ | |
768 | sv_clean_objs(); | |
8990e307 | 769 | |
5cd24f17 | 770 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 771 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 772 | PL_warnhook = NULL; |
3280af22 | 773 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 774 | PL_diehook = NULL; |
5cd24f17 | 775 | |
4b556e6c | 776 | /* call exit list functions */ |
3280af22 | 777 | while (PL_exitlistlen-- > 0) |
acfe0abc | 778 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 779 | |
3280af22 | 780 | Safefree(PL_exitlist); |
4b556e6c | 781 | |
1c4916e5 CB |
782 | PL_exitlist = NULL; |
783 | PL_exitlistlen = 0; | |
784 | ||
a3e6e81e NC |
785 | SvREFCNT_dec(PL_registered_mros); |
786 | ||
551a8b83 | 787 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
788 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
789 | * so we certainly shouldn't free it here | |
790 | */ | |
2f42fcb0 | 791 | #ifndef PERL_MICRO |
4b647fb0 | 792 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 793 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
794 | #ifdef USE_ITHREADS |
795 | /* only main thread can free environ[0] contents */ | |
796 | && PL_curinterp == aTHX | |
797 | #endif | |
798 | ) | |
799 | { | |
551a8b83 JH |
800 | I32 i; |
801 | ||
802 | for (i = 0; environ[i]; i++) | |
4b420006 | 803 | safesysfree(environ[i]); |
0631ea03 | 804 | |
4b420006 JH |
805 | /* Must use safesysfree() when working with environ. */ |
806 | safesysfree(environ); | |
551a8b83 JH |
807 | |
808 | environ = PL_origenviron; | |
809 | } | |
810 | #endif | |
2f42fcb0 | 811 | #endif /* !PERL_MICRO */ |
551a8b83 | 812 | |
30985c42 JH |
813 | if (destruct_level == 0) { |
814 | ||
815 | DEBUG_P(debprofdump()); | |
816 | ||
817 | #if defined(PERLIO_LAYERS) | |
818 | /* No more IO - including error messages ! */ | |
819 | PerlIO_cleanup(aTHX); | |
820 | #endif | |
821 | ||
822 | CopFILE_free(&PL_compiling); | |
30985c42 JH |
823 | |
824 | /* The exit() function will do everything that needs doing. */ | |
825 | return STATUS_EXIT; | |
826 | } | |
827 | ||
5f8cb046 DM |
828 | #ifdef USE_ITHREADS |
829 | /* the syntax tree is shared between clones | |
830 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
831 | * REGEXPs in the parent interpreter | |
832 | * we need to manually ReREFCNT_dec for the clones | |
833 | */ | |
0547a729 DM |
834 | { |
835 | I32 i = AvFILLp(PL_regex_padav); | |
836 | SV **ary = AvARRAY(PL_regex_padav); | |
837 | ||
838 | for (; i; i--) { | |
839 | SvREFCNT_dec(ary[i]); | |
840 | ary[i] = &PL_sv_undef; | |
841 | } | |
842 | } | |
5f8cb046 DM |
843 | #endif |
844 | ||
0547a729 | 845 | |
ad64d0ec | 846 | SvREFCNT_dec(MUTABLE_SV(PL_stashcache)); |
081fc587 AB |
847 | PL_stashcache = NULL; |
848 | ||
5f05dabc PP |
849 | /* loosen bonds of global variables */ |
850 | ||
2f9285f8 DM |
851 | /* XXX can PL_parser still be non-null here? */ |
852 | if(PL_parser && PL_parser->rsfp) { | |
853 | (void)PerlIO_close(PL_parser->rsfp); | |
854 | PL_parser->rsfp = NULL; | |
8ebc5c01 PP |
855 | } |
856 | ||
84386e14 RGS |
857 | if (PL_minus_F) { |
858 | Safefree(PL_splitstr); | |
859 | PL_splitstr = NULL; | |
860 | } | |
861 | ||
8ebc5c01 | 862 | /* switches */ |
3280af22 NIS |
863 | PL_minus_n = FALSE; |
864 | PL_minus_p = FALSE; | |
865 | PL_minus_l = FALSE; | |
866 | PL_minus_a = FALSE; | |
867 | PL_minus_F = FALSE; | |
868 | PL_doswitches = FALSE; | |
599cee73 | 869 | PL_dowarn = G_WARN_OFF; |
1a904fc8 | 870 | #ifdef PERL_SAWAMPERSAND |
d3b97530 | 871 | PL_sawampersand = 0; /* must save all match strings */ |
1a904fc8 | 872 | #endif |
3280af22 NIS |
873 | PL_unsafe = FALSE; |
874 | ||
875 | Safefree(PL_inplace); | |
bd61b366 | 876 | PL_inplace = NULL; |
a7cb1f99 | 877 | SvREFCNT_dec(PL_patchlevel); |
1e8125c6 | 878 | SvREFCNT_dec(PL_apiversion); |
3280af22 NIS |
879 | |
880 | if (PL_e_script) { | |
881 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 882 | PL_e_script = NULL; |
8ebc5c01 PP |
883 | } |
884 | ||
bf9cdc68 RG |
885 | PL_perldb = 0; |
886 | ||
8ebc5c01 PP |
887 | /* magical thingies */ |
888 | ||
e23d9e2f CS |
889 | SvREFCNT_dec(PL_ofsgv); /* *, */ |
890 | PL_ofsgv = NULL; | |
5f05dabc | 891 | |
7889fe52 | 892 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 893 | PL_ors_sv = NULL; |
8ebc5c01 | 894 | |
3280af22 | 895 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 896 | PL_rs = NULL; |
dc92893f | 897 | |
d33b2eba | 898 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 899 | PL_osname = NULL; |
5f05dabc | 900 | |
3280af22 | 901 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
902 | PL_statname = NULL; |
903 | PL_statgv = NULL; | |
5f05dabc | 904 | |
8ebc5c01 PP |
905 | /* defgv, aka *_ should be taken care of elsewhere */ |
906 | ||
7d5ea4e7 GS |
907 | /* float buffer */ |
908 | Safefree(PL_efloatbuf); | |
bd61b366 | 909 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
910 | PL_efloatsize = 0; |
911 | ||
8ebc5c01 | 912 | /* startup and shutdown function lists */ |
3280af22 | 913 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 914 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 915 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 916 | SvREFCNT_dec(PL_checkav); |
ece599bd | 917 | SvREFCNT_dec(PL_checkav_save); |
3c10abe3 AG |
918 | SvREFCNT_dec(PL_unitcheckav); |
919 | SvREFCNT_dec(PL_unitcheckav_save); | |
3280af22 | 920 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
921 | PL_beginav = NULL; |
922 | PL_beginav_save = NULL; | |
923 | PL_endav = NULL; | |
924 | PL_checkav = NULL; | |
925 | PL_checkav_save = NULL; | |
3c10abe3 AG |
926 | PL_unitcheckav = NULL; |
927 | PL_unitcheckav_save = NULL; | |
7d49f689 | 928 | PL_initav = NULL; |
5618dfe8 | 929 | |
8ebc5c01 | 930 | /* shortcuts just get cleared */ |
a0714e2c SS |
931 | PL_envgv = NULL; |
932 | PL_incgv = NULL; | |
933 | PL_hintgv = NULL; | |
934 | PL_errgv = NULL; | |
935 | PL_argvgv = NULL; | |
936 | PL_argvoutgv = NULL; | |
937 | PL_stdingv = NULL; | |
938 | PL_stderrgv = NULL; | |
939 | PL_last_in_gv = NULL; | |
940 | PL_replgv = NULL; | |
941 | PL_DBgv = NULL; | |
942 | PL_DBline = NULL; | |
943 | PL_DBsub = NULL; | |
944 | PL_DBsingle = NULL; | |
945 | PL_DBtrace = NULL; | |
946 | PL_DBsignal = NULL; | |
601f1833 | 947 | PL_DBcv = NULL; |
7d49f689 | 948 | PL_dbargs = NULL; |
5c284bb0 | 949 | PL_debstash = NULL; |
8ebc5c01 | 950 | |
7a1c5554 | 951 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 952 | PL_argvout_stack = NULL; |
8ebc5c01 | 953 | |
5c831c24 | 954 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 955 | PL_modglobal = NULL; |
5c831c24 | 956 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 957 | PL_preambleav = NULL; |
5c831c24 | 958 | SvREFCNT_dec(PL_subname); |
a0714e2c | 959 | PL_subname = NULL; |
ca0c25f6 | 960 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 961 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 962 | PL_pidstatus = NULL; |
ca0c25f6 | 963 | #endif |
5c831c24 | 964 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 965 | PL_toptarget = NULL; |
5c831c24 | 966 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
967 | PL_bodytarget = NULL; |
968 | PL_formtarget = NULL; | |
5c831c24 | 969 | |
d33b2eba | 970 | /* free locale stuff */ |
b9582b6a | 971 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 972 | Safefree(PL_collation_name); |
bd61b366 | 973 | PL_collation_name = NULL; |
b9582b6a | 974 | #endif |
d33b2eba | 975 | |
b9582b6a | 976 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 977 | Safefree(PL_numeric_name); |
bd61b366 | 978 | PL_numeric_name = NULL; |
a453c169 | 979 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 980 | PL_numeric_radix_sv = NULL; |
b9582b6a | 981 | #endif |
d33b2eba | 982 | |
9c0b6888 KW |
983 | /* clear character classes */ |
984 | for (i = 0; i < POSIX_SWASH_COUNT; i++) { | |
985 | SvREFCNT_dec(PL_utf8_swash_ptrs[i]); | |
986 | PL_utf8_swash_ptrs[i] = NULL; | |
987 | } | |
5c831c24 GS |
988 | SvREFCNT_dec(PL_utf8_mark); |
989 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 990 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 991 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 992 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
993 | SvREFCNT_dec(PL_utf8_idstart); |
994 | SvREFCNT_dec(PL_utf8_idcont); | |
2726813d | 995 | SvREFCNT_dec(PL_utf8_foldclosures); |
a0714e2c SS |
996 | PL_utf8_mark = NULL; |
997 | PL_utf8_toupper = NULL; | |
998 | PL_utf8_totitle = NULL; | |
999 | PL_utf8_tolower = NULL; | |
1000 | PL_utf8_tofold = NULL; | |
1001 | PL_utf8_idstart = NULL; | |
1002 | PL_utf8_idcont = NULL; | |
2726813d | 1003 | PL_utf8_foldclosures = NULL; |
86f72d56 | 1004 | for (i = 0; i < POSIX_CC_COUNT; i++) { |
30f9bdb0 KW |
1005 | SvREFCNT_dec(PL_Posix_ptrs[i]); |
1006 | PL_Posix_ptrs[i] = NULL; | |
1007 | ||
86f72d56 KW |
1008 | SvREFCNT_dec(PL_L1Posix_ptrs[i]); |
1009 | PL_L1Posix_ptrs[i] = NULL; | |
cac6e0ca KW |
1010 | |
1011 | SvREFCNT_dec(PL_XPosix_ptrs[i]); | |
1012 | PL_XPosix_ptrs[i] = NULL; | |
86f72d56 | 1013 | } |
5c831c24 | 1014 | |
971a9dd3 | 1015 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 1016 | PerlMemShared_free(PL_compiling.cop_warnings); |
a0714e2c | 1017 | PL_compiling.cop_warnings = NULL; |
20439bc7 Z |
1018 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
1019 | CopHINTHASH_set(&PL_compiling, cophh_new_empty()); | |
05ec9bb3 | 1020 | CopFILE_free(&PL_compiling); |
5c831c24 | 1021 | |
a0d0e21e | 1022 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1023 | |
3280af22 | 1024 | hv = PL_defstash; |
ca556bcd DM |
1025 | /* break ref loop *:: <=> %:: */ |
1026 | (void)hv_delete(hv, "main::", 6, G_DISCARD); | |
3280af22 | 1027 | PL_defstash = 0; |
a0d0e21e | 1028 | SvREFCNT_dec(hv); |
5c831c24 | 1029 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1030 | PL_curstname = NULL; |
a0d0e21e | 1031 | |
5a844595 GS |
1032 | /* clear queued errors */ |
1033 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1034 | PL_errors = NULL; |
5a844595 | 1035 | |
dd69841b BB |
1036 | SvREFCNT_dec(PL_isarev); |
1037 | ||
a0d0e21e | 1038 | FREETMPS; |
9b387841 | 1039 | if (destruct_level >= 2) { |
3280af22 | 1040 | if (PL_scopestack_ix != 0) |
9b387841 NC |
1041 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), |
1042 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", | |
1043 | (long)PL_scopestack_ix); | |
3280af22 | 1044 | if (PL_savestack_ix != 0) |
9b387841 NC |
1045 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), |
1046 | "Unbalanced saves: %ld more saves than restores\n", | |
1047 | (long)PL_savestack_ix); | |
3280af22 | 1048 | if (PL_tmps_floor != -1) |
9b387841 NC |
1049 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
1050 | (long)PL_tmps_floor + 1); | |
a0d0e21e | 1051 | if (cxstack_ix != -1) |
9b387841 NC |
1052 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
1053 | (long)cxstack_ix + 1); | |
a0d0e21e | 1054 | } |
8990e307 | 1055 | |
0547a729 DM |
1056 | #ifdef USE_ITHREADS |
1057 | SvREFCNT_dec(PL_regex_padav); | |
1058 | PL_regex_padav = NULL; | |
1059 | PL_regex_pad = NULL; | |
1060 | #endif | |
1061 | ||
776df701 | 1062 | #ifdef PERL_IMPLICIT_CONTEXT |
57bb2458 JH |
1063 | /* the entries in this list are allocated via SV PVX's, so get freed |
1064 | * in sv_clean_all */ | |
1065 | Safefree(PL_my_cxt_list); | |
776df701 | 1066 | #endif |
57bb2458 | 1067 | |
8990e307 | 1068 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
5226ed68 JH |
1069 | |
1070 | /* the 2 is for PL_fdpid and PL_strtab */ | |
d17ea597 | 1071 | while (sv_clean_all() > 2) |
5226ed68 JH |
1072 | ; |
1073 | ||
23083432 FC |
1074 | #ifdef USE_ITHREADS |
1075 | Safefree(PL_stashpad); /* must come after sv_clean_all */ | |
1076 | #endif | |
1077 | ||
d4777f27 GS |
1078 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1079 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1080 | PL_fdpid = NULL; |
d33b2eba | 1081 | |
6c644e78 GS |
1082 | #ifdef HAVE_INTERP_INTERN |
1083 | sys_intern_clear(); | |
1084 | #endif | |
1085 | ||
a38ab475 RZ |
1086 | /* constant strings */ |
1087 | for (i = 0; i < SV_CONSTS_COUNT; i++) { | |
1088 | SvREFCNT_dec(PL_sv_consts[i]); | |
1089 | PL_sv_consts[i] = NULL; | |
1090 | } | |
1091 | ||
6e72f9df PP |
1092 | /* Destruct the global string table. */ |
1093 | { | |
1094 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1095 | * so that sv_free() won't fail on them. | |
80459961 NC |
1096 | * Now that the global string table is using a single hunk of memory |
1097 | * for both HE and HEK, we either need to explicitly unshare it the | |
1098 | * correct way, or actually free things here. | |
6e72f9df | 1099 | */ |
80459961 NC |
1100 | I32 riter = 0; |
1101 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1102 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1103 | HE *hent = array[0]; |
1104 | ||
6e72f9df | 1105 | for (;;) { |
0453d815 | 1106 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1107 | HE * const next = HeNEXT(hent); |
9014280d | 1108 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1109 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1110 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1111 | Safefree(hent); |
1112 | hent = next; | |
6e72f9df PP |
1113 | } |
1114 | if (!hent) { | |
1115 | if (++riter > max) | |
1116 | break; | |
1117 | hent = array[riter]; | |
1118 | } | |
1119 | } | |
80459961 NC |
1120 | |
1121 | Safefree(array); | |
1122 | HvARRAY(PL_strtab) = 0; | |
1123 | HvTOTALKEYS(PL_strtab) = 0; | |
6e72f9df | 1124 | } |
3280af22 | 1125 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1126 | |
e652bb2f | 1127 | #ifdef USE_ITHREADS |
c21d1a0f | 1128 | /* free the pointer tables used for cloning */ |
a0739874 | 1129 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1130 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1131 | #endif |
a0739874 | 1132 | |
d33b2eba GS |
1133 | /* free special SVs */ |
1134 | ||
1135 | SvREFCNT(&PL_sv_yes) = 0; | |
1136 | sv_clear(&PL_sv_yes); | |
1137 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1138 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1139 | |
1140 | SvREFCNT(&PL_sv_no) = 0; | |
1141 | sv_clear(&PL_sv_no); | |
1142 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1143 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1144 | |
9f375a43 DM |
1145 | { |
1146 | int i; | |
1147 | for (i=0; i<=2; i++) { | |
1148 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1149 | sv_clear(PERL_DEBUG_PAD(i)); | |
1150 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1151 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1152 | } | |
1153 | } | |
1154 | ||
0453d815 | 1155 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1156 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1157 | |
eba0f806 DM |
1158 | #ifdef DEBUG_LEAKING_SCALARS |
1159 | if (PL_sv_count != 0) { | |
1160 | SV* sva; | |
1161 | SV* sv; | |
eb578fdb | 1162 | SV* svend; |
eba0f806 | 1163 | |
ad64d0ec | 1164 | for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) { |
eba0f806 DM |
1165 | svend = &sva[SvREFCNT(sva)]; |
1166 | for (sv = sva + 1; sv < svend; ++sv) { | |
e4787c0c | 1167 | if (SvTYPE(sv) != (svtype)SVTYPEMASK) { |
a548cda8 | 1168 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1169 | " flags=0x%"UVxf |
fd0854ff | 1170 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
cd676548 DM |
1171 | "\tallocated at %s:%d %s %s (parent 0x%"UVxf");" |
1172 | "serial %"UVuf"\n", | |
574b8821 NC |
1173 | (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt |
1174 | pTHX__VALUE, | |
fd0854ff DM |
1175 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", |
1176 | sv->sv_debug_line, | |
1177 | sv->sv_debug_inpad ? "for" : "by", | |
1178 | sv->sv_debug_optype ? | |
1179 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
cd676548 | 1180 | PTR2UV(sv->sv_debug_parent), |
cbe56f1d | 1181 | sv->sv_debug_serial |
fd0854ff | 1182 | ); |
2aa47728 | 1183 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1184 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1185 | #endif |
eba0f806 DM |
1186 | } |
1187 | } | |
1188 | } | |
1189 | } | |
2aa47728 NC |
1190 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1191 | { | |
1192 | int status; | |
1193 | fd_set rset; | |
1194 | /* Wait for up to 4 seconds for child to terminate. | |
1195 | This seems to be the least effort way of timing out on reaping | |
1196 | its exit status. */ | |
1197 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1198 | int sock = PL_dumper_fd; |
2aa47728 NC |
1199 | |
1200 | shutdown(sock, 1); | |
1201 | FD_ZERO(&rset); | |
1202 | FD_SET(sock, &rset); | |
1203 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1204 | waitpid(child, &status, WNOHANG); | |
1205 | close(sock); | |
1206 | } | |
1207 | #endif | |
eba0f806 | 1208 | #endif |
77abb4c6 NC |
1209 | #ifdef DEBUG_LEAKING_SCALARS_ABORT |
1210 | if (PL_sv_count) | |
1211 | abort(); | |
1212 | #endif | |
bf9cdc68 | 1213 | PL_sv_count = 0; |
eba0f806 | 1214 | |
56a2bab7 | 1215 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1216 | /* No more IO - including error messages ! */ |
1217 | PerlIO_cleanup(aTHX); | |
1218 | #endif | |
1219 | ||
9f4bd222 | 1220 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1221 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1222 | for no arg - and will try and SvREFCNT_dec it. |
1223 | */ | |
1224 | SvREFCNT(&PL_sv_undef) = 0; | |
1225 | SvREADONLY_off(&PL_sv_undef); | |
1226 | ||
3280af22 | 1227 | Safefree(PL_origfilename); |
bd61b366 | 1228 | PL_origfilename = NULL; |
43c5f42d | 1229 | Safefree(PL_reg_curpm); |
dd28f7bb | 1230 | free_tied_hv_pool(); |
3280af22 | 1231 | Safefree(PL_op_mask); |
cf36064f | 1232 | Safefree(PL_psig_name); |
bf9cdc68 | 1233 | PL_psig_name = (SV**)NULL; |
d525a7b2 | 1234 | PL_psig_ptr = (SV**)NULL; |
31c91b43 LR |
1235 | { |
1236 | /* We need to NULL PL_psig_pend first, so that | |
1237 | signal handlers know not to use it */ | |
1238 | int *psig_save = PL_psig_pend; | |
1239 | PL_psig_pend = (int*)NULL; | |
1240 | Safefree(psig_save); | |
1241 | } | |
6e72f9df | 1242 | nuke_stacks(); |
284167a5 SM |
1243 | TAINTING_set(FALSE); |
1244 | TAINT_WARN_set(FALSE); | |
3280af22 | 1245 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1246 | PL_debug = 0; |
ac27b0f5 | 1247 | |
a0d0e21e | 1248 | DEBUG_P(debprofdump()); |
d33b2eba | 1249 | |
e5dd39fc | 1250 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1251 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1252 | #endif |
1253 | ||
612f20c3 GS |
1254 | sv_free_arenas(); |
1255 | ||
5d9a96ca DM |
1256 | while (PL_regmatch_slab) { |
1257 | regmatch_slab *s = PL_regmatch_slab; | |
1258 | PL_regmatch_slab = PL_regmatch_slab->next; | |
1259 | Safefree(s); | |
1260 | } | |
1261 | ||
fc36a67e PP |
1262 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1263 | ||
3280af22 | 1264 | if (PL_mess_sv) { |
f350b448 NC |
1265 | /* we know that type == SVt_PVMG */ |
1266 | ||
9c63abab | 1267 | /* it could have accumulated taint magic */ |
f350b448 NC |
1268 | MAGIC* mg; |
1269 | MAGIC* moremagic; | |
1270 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1271 | moremagic = mg->mg_moremagic; | |
1272 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1273 | && mg->mg_len >= 0) | |
1274 | Safefree(mg->mg_ptr); | |
1275 | Safefree(mg); | |
9c63abab | 1276 | } |
f350b448 | 1277 | |
fc36a67e | 1278 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1279 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1280 | Safefree(SvANY(PL_mess_sv)); |
1281 | Safefree(PL_mess_sv); | |
a0714e2c | 1282 | PL_mess_sv = NULL; |
fc36a67e | 1283 | } |
37038d91 | 1284 | return STATUS_EXIT; |
79072805 LW |
1285 | } |
1286 | ||
954c1994 GS |
1287 | /* |
1288 | =for apidoc perl_free | |
1289 | ||
1290 | Releases a Perl interpreter. See L<perlembed>. | |
1291 | ||
1292 | =cut | |
1293 | */ | |
1294 | ||
79072805 | 1295 | void |
0cb96387 | 1296 | perl_free(pTHXx) |
79072805 | 1297 | { |
5174512c NC |
1298 | dVAR; |
1299 | ||
7918f24d NC |
1300 | PERL_ARGS_ASSERT_PERL_FREE; |
1301 | ||
c301d606 DM |
1302 | if (PL_veto_cleanup) |
1303 | return; | |
1304 | ||
7cb608b5 | 1305 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1306 | { |
1307 | /* | |
1308 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1309 | * value as we're probably hunting memory leaks then | |
1310 | */ | |
36e77d41 | 1311 | if (PL_perl_destruct_level == 0) { |
4fd0a9b8 | 1312 | const U32 old_debug = PL_debug; |
55ef9aae MHM |
1313 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this |
1314 | thread at thread exit. */ | |
4fd0a9b8 NC |
1315 | if (DEBUG_m_TEST) { |
1316 | PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we " | |
1317 | "free this thread's memory\n"); | |
1318 | PL_debug &= ~ DEBUG_m_FLAG; | |
1319 | } | |
55ef9aae MHM |
1320 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) |
1321 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
4fd0a9b8 | 1322 | PL_debug = old_debug; |
55ef9aae MHM |
1323 | } |
1324 | } | |
7cb608b5 NC |
1325 | #endif |
1326 | ||
acfe0abc | 1327 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1328 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1329 | { |
acfe0abc | 1330 | # ifdef NETWARE |
7af12a34 | 1331 | void *host = nw_internal_host; |
acfe0abc | 1332 | # else |
7af12a34 | 1333 | void *host = w32_internal_host; |
acfe0abc | 1334 | # endif |
7af12a34 | 1335 | PerlMem_free(aTHXx); |
acfe0abc | 1336 | # ifdef NETWARE |
7af12a34 | 1337 | nw_delete_internal_host(host); |
acfe0abc | 1338 | # else |
7af12a34 | 1339 | win32_delete_internal_host(host); |
acfe0abc | 1340 | # endif |
7af12a34 | 1341 | } |
1c0ca838 GS |
1342 | # else |
1343 | PerlMem_free(aTHXx); | |
1344 | # endif | |
acfe0abc GS |
1345 | #else |
1346 | PerlMem_free(aTHXx); | |
76e3520e | 1347 | #endif |
79072805 LW |
1348 | } |
1349 | ||
b7f7fff6 | 1350 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1351 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1352 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1353 | ||
826955bd | 1354 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 | 1355 | #pragma fini "perl_fini" |
666ad1ec GA |
1356 | #elif defined(__sun) && !defined(__GNUC__) |
1357 | #pragma fini (perl_fini) | |
aebd1ac7 GA |
1358 | #endif |
1359 | ||
0dbb1585 AL |
1360 | static void |
1361 | #if defined(__GNUC__) | |
1362 | __attribute__((destructor)) | |
aebd1ac7 | 1363 | #endif |
de009b76 | 1364 | perl_fini(void) |
aebd1ac7 | 1365 | { |
27da23d5 | 1366 | dVAR; |
c301d606 | 1367 | if (PL_curinterp && !PL_veto_cleanup) |
aebd1ac7 GA |
1368 | FREE_THREAD_KEY; |
1369 | } | |
1370 | ||
1371 | #endif /* WIN32 */ | |
1372 | #endif /* THREADS */ | |
1373 | ||
4b556e6c | 1374 | void |
864dbfa3 | 1375 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1376 | { |
97aff369 | 1377 | dVAR; |
3280af22 NIS |
1378 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1379 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1380 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1381 | ++PL_exitlistlen; | |
4b556e6c JD |
1382 | } |
1383 | ||
b7975bdd NC |
1384 | STATIC void |
1385 | S_set_caret_X(pTHX) { | |
97aff369 | 1386 | dVAR; |
fafc274c | 1387 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd | 1388 | if (tmpgv) { |
0f1723e1 | 1389 | SV *const caret_x = GvSV(tmpgv); |
82552a95 NC |
1390 | #if defined(OS2) |
1391 | sv_setpv(caret_x, os2_execname(aTHX)); | |
1392 | #else | |
2982a345 NC |
1393 | # ifdef USE_KERN_PROC_PATHNAME |
1394 | size_t size = 0; | |
1395 | int mib[4]; | |
1396 | mib[0] = CTL_KERN; | |
1397 | mib[1] = KERN_PROC; | |
1398 | mib[2] = KERN_PROC_PATHNAME; | |
1399 | mib[3] = -1; | |
1400 | ||
1401 | if (sysctl(mib, 4, NULL, &size, NULL, 0) == 0 | |
1402 | && size > 0 && size < MAXPATHLEN * MAXPATHLEN) { | |
1403 | sv_grow(caret_x, size); | |
1404 | ||
1405 | if (sysctl(mib, 4, SvPVX(caret_x), &size, NULL, 0) == 0 | |
1406 | && size > 2) { | |
1407 | SvPOK_only(caret_x); | |
1408 | SvCUR_set(caret_x, size - 1); | |
1409 | SvTAINT(caret_x); | |
1410 | return; | |
1411 | } | |
1412 | } | |
ae60cb46 NC |
1413 | # elif defined(USE_NSGETEXECUTABLEPATH) |
1414 | char buf[1]; | |
1415 | uint32_t size = sizeof(buf); | |
ae60cb46 NC |
1416 | |
1417 | _NSGetExecutablePath(buf, &size); | |
1418 | if (size < MAXPATHLEN * MAXPATHLEN) { | |
1419 | sv_grow(caret_x, size); | |
1420 | if (_NSGetExecutablePath(SvPVX(caret_x), &size) == 0) { | |
1421 | char *const tidied = realpath(SvPVX(caret_x), NULL); | |
1422 | if (tidied) { | |
1423 | sv_setpv(caret_x, tidied); | |
1424 | free(tidied); | |
1425 | } else { | |
1426 | SvPOK_only(caret_x); | |
1427 | SvCUR_set(caret_x, size); | |
1428 | } | |
1429 | return; | |
1430 | } | |
1431 | } | |
2982a345 | 1432 | # elif defined(HAS_PROCSELFEXE) |
700dd4f8 NC |
1433 | char buf[MAXPATHLEN]; |
1434 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1435 | ||
1436 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1437 | includes a spurious NUL which will cause $^X to fail in system | |
1438 | or backticks (this will prevent extensions from being built and | |
1439 | many tests from working). readlink is not meant to add a NUL. | |
1440 | Normal readlink works fine. | |
1441 | */ | |
1442 | if (len > 0 && buf[len-1] == '\0') { | |
1443 | len--; | |
1444 | } | |
1445 | ||
1446 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1447 | returning the text "unknown" from the readlink rather than the path | |
1448 | to the executable (or returning an error from the readlink). Any | |
1449 | valid path has a '/' in it somewhere, so use that to validate the | |
1450 | result. See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1451 | */ | |
1452 | if (len > 0 && memchr(buf, '/', len)) { | |
1453 | sv_setpvn(caret_x, buf, len); | |
82552a95 | 1454 | return; |
700dd4f8 | 1455 | } |
82552a95 NC |
1456 | # endif |
1457 | /* Fallback to this: */ | |
0f1723e1 | 1458 | sv_setpv(caret_x, PL_origargv[0]); |
b7975bdd | 1459 | #endif |
b7975bdd NC |
1460 | } |
1461 | } | |
1462 | ||
954c1994 GS |
1463 | /* |
1464 | =for apidoc perl_parse | |
1465 | ||
1466 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1467 | ||
1468 | =cut | |
1469 | */ | |
1470 | ||
03d9f026 FC |
1471 | #define SET_CURSTASH(newstash) \ |
1472 | if (PL_curstash != newstash) { \ | |
1473 | SvREFCNT_dec(PL_curstash); \ | |
1474 | PL_curstash = (HV *)SvREFCNT_inc(newstash); \ | |
1475 | } | |
1476 | ||
79072805 | 1477 | int |
0cb96387 | 1478 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1479 | { |
27da23d5 | 1480 | dVAR; |
6224f72b | 1481 | I32 oldscope; |
6224f72b | 1482 | int ret; |
db36c5a1 | 1483 | dJMPENV; |
8d063cd8 | 1484 | |
7918f24d NC |
1485 | PERL_ARGS_ASSERT_PERL_PARSE; |
1486 | #ifndef MULTIPLICITY | |
ed6c66dd | 1487 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 1488 | #endif |
7dc86639 | 1489 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) || defined(USE_HASH_SEED_DEBUG) |
b0891165 | 1490 | { |
7dc86639 YO |
1491 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
1492 | ||
1493 | if (s && (atoi(s) == 1)) { | |
1494 | unsigned char *seed= PERL_HASH_SEED; | |
1495 | unsigned char *seed_end= PERL_HASH_SEED + PERL_HASH_SEED_BYTES; | |
1496 | PerlIO_printf(Perl_debug_log, "HASH_FUNCTION = %s HASH_SEED = 0x", PERL_HASH_FUNC); | |
1497 | while (seed < seed_end) { | |
1498 | PerlIO_printf(Perl_debug_log, "%02x", *seed++); | |
1499 | } | |
6a5b4183 YO |
1500 | #ifdef PERL_HASH_RANDOMIZE_KEYS |
1501 | PerlIO_printf(Perl_debug_log, " PERTURB_KEYS = %d (%s)", | |
1502 | PL_HASH_RAND_BITS_ENABLED, | |
1503 | PL_HASH_RAND_BITS_ENABLED == 0 ? "NO" : PL_HASH_RAND_BITS_ENABLED == 1 ? "RANDOM" : "DETERMINISTIC"); | |
1504 | #endif | |
7dc86639 YO |
1505 | PerlIO_printf(Perl_debug_log, "\n"); |
1506 | } | |
b0891165 JH |
1507 | } |
1508 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
3280af22 | 1509 | PL_origargc = argc; |
e2975953 | 1510 | PL_origargv = argv; |
a0d0e21e | 1511 | |
a2722ac9 GA |
1512 | if (PL_origalen != 0) { |
1513 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1514 | } | |
1515 | else { | |
3cb9023d JH |
1516 | /* Set PL_origalen be the sum of the contiguous argv[] |
1517 | * elements plus the size of the env in case that it is | |
e9137a8e | 1518 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1519 | * as the maximum modifiable length of $0. In the worst case |
1520 | * the area we are able to modify is limited to the size of | |
43c32782 | 1521 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1522 | * --jhi */ |
e1ec3a88 | 1523 | const char *s = NULL; |
54bfe034 | 1524 | int i; |
1b6737cc | 1525 | const UV mask = |
7d8e7db3 | 1526 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1527 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1528 | const UV aligned = |
43c32782 JH |
1529 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1530 | ||
1531 | /* See if all the arguments are contiguous in memory. Note | |
1532 | * that 'contiguous' is a loose term because some platforms | |
1533 | * align the argv[] and the envp[]. If the arguments look | |
1534 | * like non-aligned, assume that they are 'strictly' or | |
1535 | * 'traditionally' contiguous. If the arguments look like | |
1536 | * aligned, we just check that they are within aligned | |
1537 | * PTRSIZE bytes. As long as no system has something bizarre | |
1538 | * like the argv[] interleaved with some other data, we are | |
1539 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1540 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1541 | while (*s) s++; | |
1542 | for (i = 1; i < PL_origargc; i++) { | |
1543 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1544 | #ifdef OS2 |
c8941eeb | 1545 | || PL_origargv[i] == s + 2 |
43c32782 | 1546 | #endif |
c8941eeb JH |
1547 | ) |
1548 | || | |
1549 | (aligned && | |
1550 | (PL_origargv[i] > s && | |
1551 | PL_origargv[i] <= | |
1552 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1553 | ) | |
1554 | { | |
1555 | s = PL_origargv[i]; | |
1556 | while (*s) s++; | |
1557 | } | |
1558 | else | |
1559 | break; | |
54bfe034 | 1560 | } |
54bfe034 | 1561 | } |
a4a109c2 JD |
1562 | |
1563 | #ifndef PERL_USE_SAFE_PUTENV | |
3cb9023d | 1564 | /* Can we grab env area too to be used as the area for $0? */ |
a4a109c2 | 1565 | if (s && PL_origenviron && !PL_use_safe_putenv) { |
9d419b5f | 1566 | if ((PL_origenviron[0] == s + 1) |
43c32782 JH |
1567 | || |
1568 | (aligned && | |
1569 | (PL_origenviron[0] > s && | |
1570 | PL_origenviron[0] <= | |
1571 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1572 | ) | |
1573 | { | |
9d419b5f | 1574 | #ifndef OS2 /* ENVIRON is read by the kernel too. */ |
43c32782 JH |
1575 | s = PL_origenviron[0]; |
1576 | while (*s) s++; | |
1577 | #endif | |
bd61b366 | 1578 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1579 | /* Force copy of environment. */ |
1580 | for (i = 1; PL_origenviron[i]; i++) { | |
1581 | if (PL_origenviron[i] == s + 1 | |
1582 | || | |
1583 | (aligned && | |
1584 | (PL_origenviron[i] > s && | |
1585 | PL_origenviron[i] <= | |
1586 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1587 | ) | |
1588 | { | |
1589 | s = PL_origenviron[i]; | |
1590 | while (*s) s++; | |
1591 | } | |
1592 | else | |
1593 | break; | |
54bfe034 | 1594 | } |
43c32782 | 1595 | } |
54bfe034 | 1596 | } |
a4a109c2 JD |
1597 | #endif /* !defined(PERL_USE_SAFE_PUTENV) */ |
1598 | ||
2d2af554 | 1599 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1600 | } |
1601 | ||
3280af22 | 1602 | if (PL_do_undump) { |
a0d0e21e LW |
1603 | |
1604 | /* Come here if running an undumped a.out. */ | |
1605 | ||
3280af22 NIS |
1606 | PL_origfilename = savepv(argv[0]); |
1607 | PL_do_undump = FALSE; | |
a0d0e21e | 1608 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1609 | init_ids(); |
284167a5 | 1610 | assert (!TAINT_get); |
b7975bdd NC |
1611 | TAINT; |
1612 | S_set_caret_X(aTHX); | |
1613 | TAINT_NOT; | |
a0d0e21e LW |
1614 | init_postdump_symbols(argc,argv,env); |
1615 | return 0; | |
1616 | } | |
1617 | ||
3280af22 | 1618 | if (PL_main_root) { |
3280af22 | 1619 | op_free(PL_main_root); |
5f66b61c | 1620 | PL_main_root = NULL; |
ff0cee69 | 1621 | } |
5f66b61c | 1622 | PL_main_start = NULL; |
3280af22 | 1623 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1624 | PL_main_cv = NULL; |
79072805 | 1625 | |
3280af22 NIS |
1626 | time(&PL_basetime); |
1627 | oldscope = PL_scopestack_ix; | |
599cee73 | 1628 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1629 | |
14dd3ad8 | 1630 | JMPENV_PUSH(ret); |
6224f72b | 1631 | switch (ret) { |
312caa8e | 1632 | case 0: |
14dd3ad8 | 1633 | parse_body(env,xsinit); |
9ebf26ad | 1634 | if (PL_unitcheckav) { |
3c10abe3 | 1635 | call_list(oldscope, PL_unitcheckav); |
9ebf26ad FR |
1636 | } |
1637 | if (PL_checkav) { | |
ca7b837b | 1638 | PERL_SET_PHASE(PERL_PHASE_CHECK); |
7d30b5c4 | 1639 | call_list(oldscope, PL_checkav); |
9ebf26ad | 1640 | } |
14dd3ad8 GS |
1641 | ret = 0; |
1642 | break; | |
6224f72b GS |
1643 | case 1: |
1644 | STATUS_ALL_FAILURE; | |
1645 | /* FALL THROUGH */ | |
1646 | case 2: | |
1647 | /* my_exit() was called */ | |
3280af22 | 1648 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1649 | LEAVE; |
1650 | FREETMPS; | |
03d9f026 | 1651 | SET_CURSTASH(PL_defstash); |
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 | } |
37038d91 | 1659 | ret = STATUS_EXIT; |
14dd3ad8 | 1660 | break; |
6224f72b | 1661 | case 3: |
bf49b057 | 1662 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1663 | ret = 1; |
1664 | break; | |
6224f72b | 1665 | } |
14dd3ad8 GS |
1666 | JMPENV_POP; |
1667 | return ret; | |
1668 | } | |
1669 | ||
4a5df386 NC |
1670 | /* This needs to stay in perl.c, as perl.c is compiled with different flags for |
1671 | miniperl, and we need to see those flags reflected in the values here. */ | |
1672 | ||
1673 | /* What this returns is subject to change. Use the public interface in Config. | |
1674 | */ | |
1675 | static void | |
1676 | S_Internals_V(pTHX_ CV *cv) | |
1677 | { | |
1678 | dXSARGS; | |
1679 | #ifdef LOCAL_PATCH_COUNT | |
1680 | const int local_patch_count = LOCAL_PATCH_COUNT; | |
1681 | #else | |
1682 | const int local_patch_count = 0; | |
1683 | #endif | |
2dc296d2 | 1684 | const int entries = 3 + local_patch_count; |
4a5df386 | 1685 | int i; |
fe1c5936 | 1686 | static const char non_bincompat_options[] = |
4a5df386 NC |
1687 | # ifdef DEBUGGING |
1688 | " DEBUGGING" | |
1689 | # endif | |
1690 | # ifdef NO_MATHOMS | |
0d311fbe | 1691 | " NO_MATHOMS" |
4a5df386 | 1692 | # endif |
59b86f4b DM |
1693 | # ifdef NO_HASH_SEED |
1694 | " NO_HASH_SEED" | |
1695 | # endif | |
3b0e4ee2 MB |
1696 | # ifdef NO_TAINT_SUPPORT |
1697 | " NO_TAINT_SUPPORT" | |
1698 | # endif | |
4a5df386 NC |
1699 | # ifdef PERL_DISABLE_PMC |
1700 | " PERL_DISABLE_PMC" | |
1701 | # endif | |
1702 | # ifdef PERL_DONT_CREATE_GVSV | |
1703 | " PERL_DONT_CREATE_GVSV" | |
1704 | # endif | |
9a044a43 NC |
1705 | # ifdef PERL_EXTERNAL_GLOB |
1706 | " PERL_EXTERNAL_GLOB" | |
1707 | # endif | |
59b86f4b DM |
1708 | # ifdef PERL_HASH_FUNC_SIPHASH |
1709 | " PERL_HASH_FUNC_SIPHASH" | |
1710 | # endif | |
1711 | # ifdef PERL_HASH_FUNC_SDBM | |
1712 | " PERL_HASH_FUNC_SDBM" | |
1713 | # endif | |
1714 | # ifdef PERL_HASH_FUNC_DJB2 | |
1715 | " PERL_HASH_FUNC_DJB2" | |
1716 | # endif | |
1717 | # ifdef PERL_HASH_FUNC_SUPERFAST | |
1718 | " PERL_HASH_FUNC_SUPERFAST" | |
1719 | # endif | |
1720 | # ifdef PERL_HASH_FUNC_MURMUR3 | |
1721 | " PERL_HASH_FUNC_MURMUR3" | |
1722 | # endif | |
1723 | # ifdef PERL_HASH_FUNC_ONE_AT_A_TIME | |
1724 | " PERL_HASH_FUNC_ONE_AT_A_TIME" | |
1725 | # endif | |
1726 | # ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_HARD | |
1727 | " PERL_HASH_FUNC_ONE_AT_A_TIME_HARD" | |
1728 | # endif | |
1729 | # ifdef PERL_HASH_FUNC_ONE_AT_A_TIME_OLD | |
1730 | " PERL_HASH_FUNC_ONE_AT_A_TIME_OLD" | |
1731 | # endif | |
4a5df386 NC |
1732 | # ifdef PERL_IS_MINIPERL |
1733 | " PERL_IS_MINIPERL" | |
1734 | # endif | |
1735 | # ifdef PERL_MALLOC_WRAP | |
1736 | " PERL_MALLOC_WRAP" | |
1737 | # endif | |
1738 | # ifdef PERL_MEM_LOG | |
1739 | " PERL_MEM_LOG" | |
1740 | # endif | |
1741 | # ifdef PERL_MEM_LOG_NOIMPL | |
1742 | " PERL_MEM_LOG_NOIMPL" | |
1743 | # endif | |
2542212d DM |
1744 | # ifdef PERL_NEW_COPY_ON_WRITE |
1745 | " PERL_NEW_COPY_ON_WRITE" | |
1746 | # endif | |
59b86f4b DM |
1747 | # ifdef PERL_PERTURB_KEYS_DETERMINISTIC |
1748 | " PERL_PERTURB_KEYS_DETERMINISTIC" | |
1749 | # endif | |
1750 | # ifdef PERL_PERTURB_KEYS_DISABLED | |
1751 | " PERL_PERTURB_KEYS_DISABLED" | |
1752 | # endif | |
1753 | # ifdef PERL_PERTURB_KEYS_RANDOM | |
1754 | " PERL_PERTURB_KEYS_RANDOM" | |
1755 | # endif | |
c3cf41ec NC |
1756 | # ifdef PERL_PRESERVE_IVUV |
1757 | " PERL_PRESERVE_IVUV" | |
1758 | # endif | |
c051e30b NC |
1759 | # ifdef PERL_RELOCATABLE_INCPUSH |
1760 | " PERL_RELOCATABLE_INCPUSH" | |
1761 | # endif | |
4a5df386 NC |
1762 | # ifdef PERL_USE_DEVEL |
1763 | " PERL_USE_DEVEL" | |
1764 | # endif | |
1765 | # ifdef PERL_USE_SAFE_PUTENV | |
1766 | " PERL_USE_SAFE_PUTENV" | |
1767 | # endif | |
a3749cf3 NC |
1768 | # ifdef UNLINK_ALL_VERSIONS |
1769 | " UNLINK_ALL_VERSIONS" | |
1770 | # endif | |
de618ee4 NC |
1771 | # ifdef USE_ATTRIBUTES_FOR_PERLIO |
1772 | " USE_ATTRIBUTES_FOR_PERLIO" | |
1773 | # endif | |
4a5df386 NC |
1774 | # ifdef USE_FAST_STDIO |
1775 | " USE_FAST_STDIO" | |
1776 | # endif | |
59b86f4b DM |
1777 | # ifdef USE_HASH_SEED_EXPLICIT |
1778 | " USE_HASH_SEED_EXPLICIT" | |
1779 | # endif | |
98548bdf NC |
1780 | # ifdef USE_LOCALE |
1781 | " USE_LOCALE" | |
1782 | # endif | |
98548bdf NC |
1783 | # ifdef USE_LOCALE_CTYPE |
1784 | " USE_LOCALE_CTYPE" | |
1785 | # endif | |
5a8d8935 NC |
1786 | # ifdef USE_PERL_ATOF |
1787 | " USE_PERL_ATOF" | |
1788 | # endif | |
0d311fbe NC |
1789 | # ifdef USE_SITECUSTOMIZE |
1790 | " USE_SITECUSTOMIZE" | |
1791 | # endif | |
4a5df386 NC |
1792 | ; |
1793 | PERL_UNUSED_ARG(cv); | |
1794 | PERL_UNUSED_ARG(items); | |
1795 | ||
1796 | EXTEND(SP, entries); | |
1797 | ||
1798 | PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0))); | |
1799 | PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options, | |
1800 | sizeof(non_bincompat_options) - 1, SVs_TEMP)); | |
1801 | ||
1802 | #ifdef __DATE__ | |
1803 | # ifdef __TIME__ | |
1804 | PUSHs(Perl_newSVpvn_flags(aTHX_ | |
1805 | STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__), | |
1806 | SVs_TEMP)); | |
1807 | # else | |
1808 | PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__), | |
1809 | SVs_TEMP)); | |
1810 | # endif | |
1811 | #else | |
1812 | PUSHs(&PL_sv_undef); | |
1813 | #endif | |
1814 | ||
4a5df386 NC |
1815 | for (i = 1; i <= local_patch_count; i++) { |
1816 | /* This will be an undef, if PL_localpatches[i] is NULL. */ | |
1817 | PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0))); | |
1818 | } | |
1819 | ||
1820 | XSRETURN(entries); | |
1821 | } | |
1822 | ||
be71fc8f NC |
1823 | #define INCPUSH_UNSHIFT 0x01 |
1824 | #define INCPUSH_ADD_OLD_VERS 0x02 | |
1825 | #define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04 | |
1826 | #define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08 | |
1827 | #define INCPUSH_NOT_BASEDIR 0x10 | |
1828 | #define INCPUSH_CAN_RELOCATE 0x20 | |
1e3208d8 NC |
1829 | #define INCPUSH_ADD_SUB_DIRS \ |
1830 | (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS) | |
e28f3139 | 1831 | |
312caa8e | 1832 | STATIC void * |
14dd3ad8 | 1833 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1834 | { |
27da23d5 | 1835 | dVAR; |
2f9285f8 | 1836 | PerlIO *rsfp; |
312caa8e | 1837 | int argc = PL_origargc; |
8f42b153 | 1838 | char **argv = PL_origargv; |
e1ec3a88 | 1839 | const char *scriptname = NULL; |
312caa8e | 1840 | VOL bool dosearch = FALSE; |
eb578fdb | 1841 | char c; |
737c24fc | 1842 | bool doextract = FALSE; |
bd61b366 | 1843 | const char *cddir = NULL; |
ab019eaa | 1844 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1845 | bool minus_f = FALSE; |
ab019eaa | 1846 | #endif |
95670bde | 1847 | SV *linestr_sv = NULL; |
5486870f | 1848 | bool add_read_e_script = FALSE; |
87606032 | 1849 | U32 lex_start_flags = 0; |
009d90df | 1850 | |
ca7b837b | 1851 | PERL_SET_PHASE(PERL_PHASE_START); |
9ebf26ad | 1852 | |
6224f72b | 1853 | init_main_stash(); |
54310121 | 1854 | |
c7030b81 NC |
1855 | { |
1856 | const char *s; | |
6224f72b GS |
1857 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1858 | if (argv[0][0] != '-' || !argv[0][1]) | |
1859 | break; | |
6224f72b GS |
1860 | s = argv[0]+1; |
1861 | reswitch: | |
47f56822 | 1862 | switch ((c = *s)) { |
729a02f2 | 1863 | case 'C': |
1d5472a9 GS |
1864 | #ifndef PERL_STRICT_CR |
1865 | case '\r': | |
1866 | #endif | |
6224f72b GS |
1867 | case ' ': |
1868 | case '0': | |
1869 | case 'F': | |
1870 | case 'a': | |
1871 | case 'c': | |
1872 | case 'd': | |
1873 | case 'D': | |
1874 | case 'h': | |
1875 | case 'i': | |
1876 | case 'l': | |
1877 | case 'M': | |
1878 | case 'm': | |
1879 | case 'n': | |
1880 | case 'p': | |
1881 | case 's': | |
1882 | case 'u': | |
1883 | case 'U': | |
1884 | case 'v': | |
599cee73 PM |
1885 | case 'W': |
1886 | case 'X': | |
6224f72b | 1887 | case 'w': |
97bd5664 | 1888 | if ((s = moreswitches(s))) |
6224f72b GS |
1889 | goto reswitch; |
1890 | break; | |
33b78306 | 1891 | |
1dbad523 | 1892 | case 't': |
284167a5 SM |
1893 | #if SILENT_NO_TAINT_SUPPORT |
1894 | /* silently ignore */ | |
1895 | #elif NO_TAINT_SUPPORT | |
3231f579 | 1896 | Perl_croak_nocontext("This perl was compiled without taint support. " |
284167a5 SM |
1897 | "Cowardly refusing to run with -t or -T flags"); |
1898 | #else | |
22f7c9c9 | 1899 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
284167a5 SM |
1900 | if( !TAINTING_get ) { |
1901 | TAINT_WARN_set(TRUE); | |
1902 | TAINTING_set(TRUE); | |
317ea90d | 1903 | } |
284167a5 | 1904 | #endif |
317ea90d MS |
1905 | s++; |
1906 | goto reswitch; | |
6224f72b | 1907 | case 'T': |
284167a5 SM |
1908 | #if SILENT_NO_TAINT_SUPPORT |
1909 | /* silently ignore */ | |
1910 | #elif NO_TAINT_SUPPORT | |
3231f579 | 1911 | Perl_croak_nocontext("This perl was compiled without taint support. " |
284167a5 SM |
1912 | "Cowardly refusing to run with -t or -T flags"); |
1913 | #else | |
22f7c9c9 | 1914 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
284167a5 SM |
1915 | TAINTING_set(TRUE); |
1916 | TAINT_WARN_set(FALSE); | |
1917 | #endif | |
6224f72b GS |
1918 | s++; |
1919 | goto reswitch; | |
f86702cc | 1920 | |
bc9b29db RH |
1921 | case 'E': |
1922 | PL_minus_E = TRUE; | |
1923 | /* FALL THROUGH */ | |
6224f72b | 1924 | case 'e': |
f20b2998 | 1925 | forbid_setid('e', FALSE); |
3280af22 | 1926 | if (!PL_e_script) { |
396482e1 | 1927 | PL_e_script = newSVpvs(""); |
5486870f | 1928 | add_read_e_script = TRUE; |
6224f72b GS |
1929 | } |
1930 | if (*++s) | |
3280af22 | 1931 | sv_catpv(PL_e_script, s); |
6224f72b | 1932 | else if (argv[1]) { |
3280af22 | 1933 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1934 | argc--,argv++; |
1935 | } | |
1936 | else | |
47f56822 | 1937 | Perl_croak(aTHX_ "No code specified for -%c", c); |
396482e1 | 1938 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1939 | break; |
afe37c7d | 1940 | |
20ef40cf | 1941 | case 'f': |
f5542d3a | 1942 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1943 | minus_f = TRUE; |
f5542d3a | 1944 | #endif |
20ef40cf GA |
1945 | s++; |
1946 | goto reswitch; | |
1947 | ||
6224f72b | 1948 | case 'I': /* -I handled both here and in moreswitches() */ |
f20b2998 | 1949 | forbid_setid('I', FALSE); |
bd61b366 | 1950 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1951 | argc--,argv++; |
1952 | } | |
6224f72b | 1953 | if (s && *s) { |
0df16ed7 | 1954 | STRLEN len = strlen(s); |
55b4bc1c | 1955 | incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS); |
0df16ed7 GS |
1956 | } |
1957 | else | |
a67e862a | 1958 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b | 1959 | break; |
6224f72b | 1960 | case 'S': |
f20b2998 | 1961 | forbid_setid('S', FALSE); |
6224f72b GS |
1962 | dosearch = TRUE; |
1963 | s++; | |
1964 | goto reswitch; | |
1965 | case 'V': | |
7edfd0ef NC |
1966 | { |
1967 | SV *opts_prog; | |
1968 | ||
7edfd0ef | 1969 | if (*++s != ':') { |
37ca4a5b | 1970 | opts_prog = newSVpvs("use Config; Config::_V()"); |
7edfd0ef NC |
1971 | } |
1972 | else { | |
1973 | ++s; | |
1974 | opts_prog = Perl_newSVpvf(aTHX_ | |
37ca4a5b | 1975 | "use Config; Config::config_vars(qw%c%s%c)", |
7edfd0ef NC |
1976 | 0, s, 0); |
1977 | s += strlen(s); | |
1978 | } | |
37ca4a5b | 1979 | Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog); |
7edfd0ef NC |
1980 | /* don't look for script or read stdin */ |
1981 | scriptname = BIT_BUCKET; | |
1982 | goto reswitch; | |
6224f72b | 1983 | } |
6224f72b | 1984 | case 'x': |
737c24fc | 1985 | doextract = TRUE; |
6224f72b | 1986 | s++; |
304334da | 1987 | if (*s) |
f4c556ac | 1988 | cddir = s; |
6224f72b GS |
1989 | break; |
1990 | case 0: | |
1991 | break; | |
1992 | case '-': | |
1993 | if (!*++s || isSPACE(*s)) { | |
1994 | argc--,argv++; | |
1995 | goto switch_end; | |
1996 | } | |
ee8bc8b7 NC |
1997 | /* catch use of gnu style long options. |
1998 | Both of these exit immediately. */ | |
1999 | if (strEQ(s, "version")) | |
2000 | minus_v(); | |
2001 | if (strEQ(s, "help")) | |
2002 | usage(); | |
6224f72b GS |
2003 | s--; |
2004 | /* FALL THROUGH */ | |
2005 | default: | |
cea2e8a9 | 2006 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
2007 | } |
2008 | } | |
c7030b81 NC |
2009 | } |
2010 | ||
6224f72b | 2011 | switch_end: |
54310121 | 2012 | |
c7030b81 NC |
2013 | { |
2014 | char *s; | |
2015 | ||
f675dbe5 CB |
2016 | if ( |
2017 | #ifndef SECURE_INTERNAL_GETENV | |
284167a5 | 2018 | !TAINTING_get && |
f675dbe5 | 2019 | #endif |
cf756827 | 2020 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 2021 | { |
74288ac8 GS |
2022 | while (isSPACE(*s)) |
2023 | s++; | |
317ea90d | 2024 | if (*s == '-' && *(s+1) == 'T') { |
284167a5 SM |
2025 | #if SILENT_NO_TAINT_SUPPORT |
2026 | /* silently ignore */ | |
2027 | #elif NO_TAINT_SUPPORT | |
3231f579 | 2028 | Perl_croak_nocontext("This perl was compiled without taint support. " |
284167a5 SM |
2029 | "Cowardly refusing to run with -t or -T flags"); |
2030 | #else | |
22f7c9c9 | 2031 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
284167a5 SM |
2032 | TAINTING_set(TRUE); |
2033 | TAINT_WARN_set(FALSE); | |
2034 | #endif | |
317ea90d | 2035 | } |
74288ac8 | 2036 | else { |
bd61b366 | 2037 | char *popt_copy = NULL; |
74288ac8 | 2038 | while (s && *s) { |
54913509 | 2039 | const char *d; |
74288ac8 GS |
2040 | while (isSPACE(*s)) |
2041 | s++; | |
2042 | if (*s == '-') { | |
2043 | s++; | |
2044 | if (isSPACE(*s)) | |
2045 | continue; | |
2046 | } | |
4ea8f8fb | 2047 | d = s; |
74288ac8 GS |
2048 | if (!*s) |
2049 | break; | |
2b622f1a | 2050 | if (!strchr("CDIMUdmtwW", *s)) |
cea2e8a9 | 2051 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
2052 | while (++s && *s) { |
2053 | if (isSPACE(*s)) { | |
cf756827 | 2054 | if (!popt_copy) { |
bfa6c418 NC |
2055 | popt_copy = SvPVX(sv_2mortal(newSVpv(d,0))); |
2056 | s = popt_copy + (s - d); | |
2057 | d = popt_copy; | |
cf756827 | 2058 | } |
4ea8f8fb MS |
2059 | *s++ = '\0'; |
2060 | break; | |
2061 | } | |
2062 | } | |
1c4db469 | 2063 | if (*d == 't') { |
284167a5 SM |
2064 | #if SILENT_NO_TAINT_SUPPORT |
2065 | /* silently ignore */ | |
2066 | #elif NO_TAINT_SUPPORT | |
3231f579 | 2067 | Perl_croak_nocontext("This perl was compiled without taint support. " |
284167a5 SM |
2068 | "Cowardly refusing to run with -t or -T flags"); |
2069 | #else | |
2070 | if( !TAINTING_get) { | |
2071 | TAINT_WARN_set(TRUE); | |
2072 | TAINTING_set(TRUE); | |
317ea90d | 2073 | } |
284167a5 | 2074 | #endif |
1c4db469 | 2075 | } else { |
97bd5664 | 2076 | moreswitches(d); |
1c4db469 | 2077 | } |
6224f72b | 2078 | } |
6224f72b GS |
2079 | } |
2080 | } | |
c7030b81 | 2081 | } |
a0d0e21e | 2082 | |
c29067d7 CH |
2083 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2084 | /* and for SITELIB_EXP in USE_SITECUSTOMIZE */ | |
284167a5 | 2085 | assert (!TAINT_get); |
c29067d7 CH |
2086 | TAINT; |
2087 | S_set_caret_X(aTHX); | |
2088 | TAINT_NOT; | |
2089 | ||
43c0c913 | 2090 | #if defined(USE_SITECUSTOMIZE) |
20ef40cf | 2091 | if (!minus_f) { |
43c0c913 | 2092 | /* The games with local $! are to avoid setting errno if there is no |
fc81b718 NC |
2093 | sitecustomize script. "q%c...%c", 0, ..., 0 becomes "q\0...\0", |
2094 | ie a q() operator with a NUL byte as a the delimiter. This avoids | |
2095 | problems with pathnames containing (say) ' */ | |
43c0c913 NC |
2096 | # ifdef PERL_IS_MINIPERL |
2097 | AV *const inc = GvAV(PL_incgv); | |
2098 | SV **const inc0 = inc ? av_fetch(inc, 0, FALSE) : NULL; | |
2099 | ||
2100 | if (inc0) { | |
15870c5c NC |
2101 | /* if lib/buildcustomize.pl exists, it should not fail. If it does, |
2102 | it should be reported immediately as a build failure. */ | |
43c0c913 NC |
2103 | (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav, |
2104 | Perl_newSVpvf(aTHX_ | |
15870c5c | 2105 | "BEGIN { do {local $!; -f q%c%"SVf"/buildcustomize.pl%c} and do q%c%"SVf"/buildcustomize.pl%c || die $@ }", |
fc81b718 NC |
2106 | 0, *inc0, 0, |
2107 | 0, *inc0, 0)); | |
43c0c913 NC |
2108 | } |
2109 | # else | |
2110 | /* SITELIB_EXP is a function call on Win32. */ | |
c29067d7 | 2111 | const char *const raw_sitelib = SITELIB_EXP; |
bac5c4fc JD |
2112 | if (raw_sitelib) { |
2113 | /* process .../.. if PERL_RELOCATABLE_INC is defined */ | |
2114 | SV *sitelib_sv = mayberelocate(raw_sitelib, strlen(raw_sitelib), | |
2115 | INCPUSH_CAN_RELOCATE); | |
2116 | const char *const sitelib = SvPVX(sitelib_sv); | |
2117 | (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav, | |
2118 | Perl_newSVpvf(aTHX_ | |
2119 | "BEGIN { do {local $!; -f q%c%s/sitecustomize.pl%c} && do q%c%s/sitecustomize.pl%c }", | |
2120 | 0, sitelib, 0, | |
2121 | 0, sitelib, 0)); | |
2122 | assert (SvREFCNT(sitelib_sv) == 1); | |
2123 | SvREFCNT_dec(sitelib_sv); | |
2124 | } | |
43c0c913 | 2125 | # endif |
20ef40cf GA |
2126 | } |
2127 | #endif | |
2128 | ||
6224f72b GS |
2129 | if (!scriptname) |
2130 | scriptname = argv[0]; | |
3280af22 | 2131 | if (PL_e_script) { |
6224f72b GS |
2132 | argc++,argv--; |
2133 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2134 | } | |
bd61b366 | 2135 | else if (scriptname == NULL) { |
6224f72b GS |
2136 | #ifdef MSDOS |
2137 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 2138 | moreswitches("h"); |
6224f72b GS |
2139 | #endif |
2140 | scriptname = "-"; | |
2141 | } | |
2142 | ||
284167a5 | 2143 | assert (!TAINT_get); |
2cace6ac | 2144 | init_perllib(); |
6224f72b | 2145 | |
a52eba0e | 2146 | { |
f20b2998 | 2147 | bool suidscript = FALSE; |
829372d3 | 2148 | |
8d113837 | 2149 | rsfp = open_script(scriptname, dosearch, &suidscript); |
c0b3891a NC |
2150 | if (!rsfp) { |
2151 | rsfp = PerlIO_stdin(); | |
87606032 | 2152 | lex_start_flags = LEX_DONT_CLOSE_RSFP; |
c0b3891a | 2153 | } |
6224f72b | 2154 | |
b24bc095 | 2155 | validate_suid(rsfp); |
6224f72b | 2156 | |
64ca3a65 | 2157 | #ifndef PERL_MICRO |
a52eba0e NC |
2158 | # if defined(SIGCHLD) || defined(SIGCLD) |
2159 | { | |
2160 | # ifndef SIGCHLD | |
2161 | # define SIGCHLD SIGCLD | |
2162 | # endif | |
2163 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2164 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
a2a5de95 NC |
2165 | Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL), |
2166 | "Can't ignore signal CHLD, forcing to default"); | |
a52eba0e NC |
2167 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); |
2168 | } | |
0b5b802d | 2169 | } |
a52eba0e | 2170 | # endif |
64ca3a65 | 2171 | #endif |
0b5b802d | 2172 | |
737c24fc | 2173 | if (doextract) { |
faef540c | 2174 | |
f20b2998 | 2175 | /* This will croak if suidscript is true, as -x cannot be used with |
faef540c NC |
2176 | setuid scripts. */ |
2177 | forbid_setid('x', suidscript); | |
f20b2998 | 2178 | /* Hence you can't get here if suidscript is true */ |
faef540c | 2179 | |
95670bde NC |
2180 | linestr_sv = newSV_type(SVt_PV); |
2181 | lex_start_flags |= LEX_START_COPIED; | |
2f9285f8 | 2182 | find_beginning(linestr_sv, rsfp); |
a52eba0e NC |
2183 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2184 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2185 | } | |
f4c556ac | 2186 | } |
6224f72b | 2187 | |
ea726b52 | 2188 | PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3280af22 NIS |
2189 | CvUNIQUE_on(PL_compcv); |
2190 | ||
dd2155a4 | 2191 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2192 | |
dd69841b BB |
2193 | PL_isarev = newHV(); |
2194 | ||
0c4f7ff0 | 2195 | boot_core_PerlIO(); |
6224f72b | 2196 | boot_core_UNIVERSAL(); |
e1a479c5 | 2197 | boot_core_mro(); |
4a5df386 | 2198 | newXS("Internals::V", S_Internals_V, __FILE__); |
6224f72b GS |
2199 | |
2200 | if (xsinit) | |
acfe0abc | 2201 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2202 | #ifndef PERL_MICRO |
739a0b84 | 2203 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(SYMBIAN) |
c5be433b | 2204 | init_os_extras(); |
6224f72b | 2205 | #endif |
64ca3a65 | 2206 | #endif |
6224f72b | 2207 | |
29209bc5 | 2208 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2209 | # ifdef HAS_SOCKS5_INIT |
2210 | socks5_init(argv[0]); | |
2211 | # else | |
29209bc5 | 2212 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2213 | # endif |
ac27b0f5 | 2214 | #endif |
29209bc5 | 2215 | |
6224f72b GS |
2216 | init_predump_symbols(); |
2217 | /* init_postdump_symbols not currently designed to be called */ | |
2218 | /* more than once (ENV isn't cleared first, for example) */ | |
2219 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2220 | if (!PL_do_undump) |
6224f72b GS |
2221 | init_postdump_symbols(argc,argv,env); |
2222 | ||
27da23d5 JH |
2223 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2224 | * or explicitly in some platforms. | |
085a54d9 | 2225 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2226 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2227 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2228 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2229 | #endif | |
e27b5b51 | 2230 | # ifndef PERL_IS_MINIPERL |
06e66572 JH |
2231 | if (PL_unicode) { |
2232 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2233 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2234 | IO* io; |
2235 | PerlIO* fp; | |
2236 | SV* sv; | |
2237 | ||
a05d7ebb | 2238 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2239 | * and the default open disciplines. */ |
a05d7ebb JH |
2240 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2241 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2242 | (fp = IoIFP(io))) | |
2243 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2244 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2245 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2246 | (fp = IoOFP(io))) | |
2247 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2248 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2249 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2250 | (fp = IoOFP(io))) | |
2251 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2252 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2253 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2254 | SVt_PV)))) { | |
a05d7ebb JH |
2255 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2256 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2257 | if (in) { | |
2258 | if (out) | |
76f68e9b | 2259 | sv_setpvs(sv, ":utf8\0:utf8"); |
a05d7ebb | 2260 | else |
76f68e9b | 2261 | sv_setpvs(sv, ":utf8\0"); |
a05d7ebb JH |
2262 | } |
2263 | else if (out) | |
76f68e9b | 2264 | sv_setpvs(sv, "\0:utf8"); |
a05d7ebb JH |
2265 | SvSETMAGIC(sv); |
2266 | } | |
b310b053 JH |
2267 | } |
2268 | } | |
e27b5b51 | 2269 | #endif |
b310b053 | 2270 | |
c7030b81 NC |
2271 | { |
2272 | const char *s; | |
4ffa73a3 JH |
2273 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2274 | if (strEQ(s, "unsafe")) | |
2275 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2276 | else if (strEQ(s, "safe")) | |
2277 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2278 | else | |
2279 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2280 | } | |
c7030b81 | 2281 | } |
4ffa73a3 | 2282 | |
81d86705 | 2283 | #ifdef PERL_MAD |
c7030b81 NC |
2284 | { |
2285 | const char *s; | |
284167a5 | 2286 | if (!TAINTING_get && |
2cc12391 | 2287 | (s = PerlEnv_getenv("PERL_XMLDUMP"))) { |
81d86705 NC |
2288 | PL_madskills = 1; |
2289 | PL_minus_c = 1; | |
2290 | if (!s || !s[0]) | |
2291 | PL_xmlfp = PerlIO_stdout(); | |
2292 | else { | |
2293 | PL_xmlfp = PerlIO_open(s, "w"); | |
2294 | if (!PL_xmlfp) | |
2295 | Perl_croak(aTHX_ "Can't open %s", s); | |
2296 | } | |
1a9a51d4 | 2297 | my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */ |
81d86705 | 2298 | } |
c7030b81 NC |
2299 | } |
2300 | ||
2301 | { | |
2302 | const char *s; | |
81d86705 NC |
2303 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { |
2304 | PL_madskills = atoi(s); | |
1a9a51d4 | 2305 | my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */ |
81d86705 | 2306 | } |
c7030b81 | 2307 | } |
81d86705 NC |
2308 | #endif |
2309 | ||
87606032 | 2310 | lex_start(linestr_sv, rsfp, lex_start_flags); |
d2687c98 | 2311 | SvREFCNT_dec(linestr_sv); |
95670bde | 2312 | |
219f7226 | 2313 | PL_subname = newSVpvs("main"); |
6224f72b | 2314 | |
5486870f DM |
2315 | if (add_read_e_script) |
2316 | filter_add(read_e_script, NULL); | |
2317 | ||
6224f72b GS |
2318 | /* now parse the script */ |
2319 | ||
93189314 | 2320 | SETERRNO(0,SS_NORMAL); |
28ac2b49 | 2321 | if (yyparse(GRAMPROG) || PL_parser->error_count) { |
3280af22 | 2322 | if (PL_minus_c) |
cea2e8a9 | 2323 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2324 | else { |
cea2e8a9 | 2325 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2326 | PL_origfilename); |
6224f72b GS |
2327 | } |
2328 | } | |
57843af0 | 2329 | CopLINE_set(PL_curcop, 0); |
03d9f026 | 2330 | SET_CURSTASH(PL_defstash); |
3280af22 NIS |
2331 | if (PL_e_script) { |
2332 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2333 | PL_e_script = NULL; |
6224f72b GS |
2334 | } |
2335 | ||
3280af22 | 2336 | if (PL_do_undump) |
6224f72b GS |
2337 | my_unexec(); |
2338 | ||
57843af0 GS |
2339 | if (isWARN_ONCE) { |
2340 | SAVECOPFILE(PL_curcop); | |
2341 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2342 | gv_check(PL_defstash); |
57843af0 | 2343 | } |
6224f72b GS |
2344 | |
2345 | LEAVE; | |
2346 | FREETMPS; | |
2347 | ||
2348 | #ifdef MYMALLOC | |
f6a607bc RGS |
2349 | { |
2350 | const char *s; | |
6224f72b GS |
2351 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
2352 | dump_mstats("after compilation:"); | |
f6a607bc | 2353 | } |
6224f72b GS |
2354 | #endif |
2355 | ||
2356 | ENTER; | |
febb3a6d | 2357 | PL_restartjmpenv = NULL; |
3280af22 | 2358 | PL_restartop = 0; |
312caa8e | 2359 | return NULL; |
6224f72b GS |
2360 | } |
2361 | ||
954c1994 GS |
2362 | /* |
2363 | =for apidoc perl_run | |
2364 | ||
2365 | Tells a Perl interpreter to run. See L<perlembed>. | |
2366 | ||
2367 | =cut | |
2368 | */ | |
2369 | ||
6224f72b | 2370 | int |
0cb96387 | 2371 | perl_run(pTHXx) |
6224f72b | 2372 | { |
97aff369 | 2373 | dVAR; |
6224f72b | 2374 | I32 oldscope; |
14dd3ad8 | 2375 | int ret = 0; |
db36c5a1 | 2376 | dJMPENV; |
6224f72b | 2377 | |
7918f24d NC |
2378 | PERL_ARGS_ASSERT_PERL_RUN; |
2379 | #ifndef MULTIPLICITY | |
ed6c66dd | 2380 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 2381 | #endif |
9d4ba2ae | 2382 | |
3280af22 | 2383 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2384 | #ifdef VMS |
2385 | VMSISH_HUSHED = 0; | |
2386 | #endif | |
6224f72b | 2387 | |
14dd3ad8 | 2388 | JMPENV_PUSH(ret); |
6224f72b GS |
2389 | switch (ret) { |
2390 | case 1: | |
2391 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2392 | goto redo_body; |
14dd3ad8 | 2393 | case 0: /* normal completion */ |
14dd3ad8 GS |
2394 | redo_body: |
2395 | run_body(oldscope); | |
14dd3ad8 GS |
2396 | /* FALL THROUGH */ |
2397 | case 2: /* my_exit() */ | |
3280af22 | 2398 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2399 | LEAVE; |
2400 | FREETMPS; | |
03d9f026 | 2401 | SET_CURSTASH(PL_defstash); |
3a1ee7e8 | 2402 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
9ebf26ad | 2403 | PL_endav && !PL_minus_c) { |
ca7b837b | 2404 | PERL_SET_PHASE(PERL_PHASE_END); |
31d77e54 | 2405 | call_list(oldscope, PL_endav); |
9ebf26ad | 2406 | } |
6224f72b GS |
2407 | #ifdef MYMALLOC |
2408 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2409 | dump_mstats("after execution: "); | |
2410 | #endif | |
37038d91 | 2411 | ret = STATUS_EXIT; |
14dd3ad8 | 2412 | break; |
6224f72b | 2413 | case 3: |
312caa8e CS |
2414 | if (PL_restartop) { |
2415 | POPSTACK_TO(PL_mainstack); | |
2416 | goto redo_body; | |
6224f72b | 2417 | } |
5637ef5b | 2418 | PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n"); |
312caa8e | 2419 | FREETMPS; |
14dd3ad8 GS |
2420 | ret = 1; |
2421 | break; | |
6224f72b GS |
2422 | } |
2423 | ||
14dd3ad8 GS |
2424 | JMPENV_POP; |
2425 | return ret; | |
312caa8e CS |
2426 | } |
2427 | ||
dd374669 | 2428 | STATIC void |
14dd3ad8 GS |
2429 | S_run_body(pTHX_ I32 oldscope) |
2430 | { | |
97aff369 | 2431 | dVAR; |
d3b97530 DM |
2432 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support (0x%x).\n", |
2433 | PL_sawampersand ? "Enabling" : "Omitting", | |
2434 | (unsigned int)(PL_sawampersand))); | |
6224f72b | 2435 | |
3280af22 | 2436 | if (!PL_restartop) { |
81d86705 NC |
2437 | #ifdef PERL_MAD |
2438 | if (PL_xmlfp) { | |
2439 | xmldump_all(); | |
2440 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2441 | } | |
2442 | #endif | |
cf2782cd | 2443 | #ifdef DEBUGGING |
f0e3f042 CS |
2444 | if (DEBUG_x_TEST || DEBUG_B_TEST) |
2445 | dump_all_perl(!DEBUG_B_TEST); | |
ecae49c0 NC |
2446 | if (!DEBUG_q_TEST) |
2447 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2448 | #endif |
6224f72b | 2449 | |
3280af22 | 2450 | if (PL_minus_c) { |
bf49b057 | 2451 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
6224f72b GS |
2452 | my_exit(0); |
2453 | } | |
3280af22 | 2454 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2455 | sv_setiv(PL_DBsingle, 1); |
9ebf26ad | 2456 | if (PL_initav) { |
ca7b837b | 2457 | PERL_SET_PHASE(PERL_PHASE_INIT); |
3280af22 | 2458 | call_list(oldscope, PL_initav); |
9ebf26ad | 2459 | } |
f1fac472 | 2460 | #ifdef PERL_DEBUG_READONLY_OPS |
3107b51f FC |
2461 | if (PL_main_root && PL_main_root->op_slabbed) |
2462 | Slab_to_ro(OpSLAB(PL_main_root)); | |
f1fac472 | 2463 | #endif |
6224f72b GS |
2464 | } |
2465 | ||
2466 | /* do it */ | |
2467 | ||
ca7b837b | 2468 | PERL_SET_PHASE(PERL_PHASE_RUN); |
9ebf26ad | 2469 | |
3280af22 | 2470 | if (PL_restartop) { |
febb3a6d | 2471 | PL_restartjmpenv = NULL; |
533c011a | 2472 | PL_op = PL_restartop; |
3280af22 | 2473 | PL_restartop = 0; |
cea2e8a9 | 2474 | CALLRUNOPS(aTHX); |
6224f72b | 2475 | } |
3280af22 NIS |
2476 | else if (PL_main_start) { |
2477 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2478 | PL_op = PL_main_start; |
cea2e8a9 | 2479 | CALLRUNOPS(aTHX); |
6224f72b | 2480 | } |
f6b3007c | 2481 | my_exit(0); |
118e2215 | 2482 | assert(0); /* NOTREACHED */ |
6224f72b GS |
2483 | } |
2484 | ||
954c1994 | 2485 | /* |
ccfc67b7 JH |
2486 | =head1 SV Manipulation Functions |
2487 | ||
954c1994 GS |
2488 | =for apidoc p||get_sv |
2489 | ||
64ace3f8 NC |
2490 | Returns the SV of the specified Perl scalar. C<flags> are passed to |
2491 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2492 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2493 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2494 | |
2495 | =cut | |
2496 | */ | |
2497 | ||
6224f72b | 2498 | SV* |
64ace3f8 | 2499 | Perl_get_sv(pTHX_ const char *name, I32 flags) |
6224f72b GS |
2500 | { |
2501 | GV *gv; | |
7918f24d NC |
2502 | |
2503 | PERL_ARGS_ASSERT_GET_SV; | |
2504 | ||
64ace3f8 | 2505 | gv = gv_fetchpv(name, flags, SVt_PV); |
6224f72b GS |
2506 | if (gv) |
2507 | return GvSV(gv); | |
a0714e2c | 2508 | return NULL; |
6224f72b GS |
2509 | } |
2510 | ||
954c1994 | 2511 | /* |
ccfc67b7 JH |
2512 | =head1 Array Manipulation Functions |
2513 | ||
954c1994 GS |
2514 | =for apidoc p||get_av |
2515 | ||
f0b90de1 SF |
2516 | Returns the AV of the specified Perl global or package array with the given |
2517 | name (so it won't work on lexical variables). C<flags> are passed | |
2518 | to C<gv_fetchpv>. If C<GV_ADD> is set and the | |
cbfd0a87 NC |
2519 | Perl variable does not exist then it will be created. If C<flags> is zero |
2520 | and the variable does not exist then NULL is returned. | |
954c1994 | 2521 | |
f0b90de1 SF |
2522 | Perl equivalent: C<@{"$name"}>. |
2523 | ||
954c1994 GS |
2524 | =cut |
2525 | */ | |
2526 | ||
6224f72b | 2527 | AV* |
cbfd0a87 | 2528 | Perl_get_av(pTHX_ const char *name, I32 flags) |
6224f72b | 2529 | { |
cbfd0a87 | 2530 | GV* const gv = gv_fetchpv(name, flags, SVt_PVAV); |
7918f24d NC |
2531 | |
2532 | PERL_ARGS_ASSERT_GET_AV; | |
2533 | ||
cbfd0a87 | 2534 | if (flags) |
6224f72b GS |
2535 | return GvAVn(gv); |
2536 | if (gv) | |
2537 | return GvAV(gv); | |
7d49f689 | 2538 | return NULL; |
6224f72b GS |
2539 | } |
2540 | ||
954c1994 | 2541 | /* |
ccfc67b7 JH |
2542 | =head1 Hash Manipulation Functions |
2543 | ||
954c1994 GS |
2544 | =for apidoc p||get_hv |
2545 | ||
6673a63c NC |
2546 | Returns the HV of the specified Perl hash. C<flags> are passed to |
2547 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2548 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2549 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2550 | |
2551 | =cut | |
2552 | */ | |
2553 | ||
6224f72b | 2554 | HV* |
6673a63c | 2555 | Perl_get_hv(pTHX_ const char *name, I32 flags) |
6224f72b | 2556 | { |
6673a63c | 2557 | GV* const gv = gv_fetchpv(name, flags, SVt_PVHV); |
7918f24d NC |
2558 | |
2559 | PERL_ARGS_ASSERT_GET_HV; | |
2560 | ||
6673a63c | 2561 | if (flags) |
a0d0e21e LW |
2562 | return GvHVn(gv); |
2563 | if (gv) | |
2564 | return GvHV(gv); | |
5c284bb0 | 2565 | return NULL; |
a0d0e21e LW |
2566 | } |
2567 | ||
954c1994 | 2568 | /* |
ccfc67b7 JH |
2569 | =head1 CV Manipulation Functions |
2570 | ||
780a5241 NC |
2571 | =for apidoc p||get_cvn_flags |
2572 | ||
2573 | Returns the CV of the specified Perl subroutine. C<flags> are passed to | |
2574 | C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not | |
2575 | exist then it will be declared (which has the same effect as saying | |
2576 | C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist | |
2577 | then NULL is returned. | |
2578 | ||
954c1994 GS |
2579 | =for apidoc p||get_cv |
2580 | ||
780a5241 | 2581 | Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>. |
954c1994 GS |
2582 | |
2583 | =cut | |
2584 | */ | |
2585 | ||
a0d0e21e | 2586 | CV* |
780a5241 | 2587 | Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags) |
a0d0e21e | 2588 | { |
780a5241 | 2589 | GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV); |
7918f24d NC |
2590 | |
2591 | PERL_ARGS_ASSERT_GET_CVN_FLAGS; | |
2592 | ||
334dda80 FC |
2593 | /* XXX this is probably not what they think they're getting. |
2594 | * It has the same effect as "sub name;", i.e. just a forward | |
2595 | * declaration! */ | |
780a5241 | 2596 | if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) { |
186a5ba8 | 2597 | return newSTUB(gv,0); |
780a5241 | 2598 | } |
a0d0e21e | 2599 | if (gv) |
8ebc5c01 | 2600 | return GvCVu(gv); |
601f1833 | 2601 | return NULL; |
a0d0e21e LW |
2602 | } |
2603 | ||
2c67934f NC |
2604 | /* Nothing in core calls this now, but we can't replace it with a macro and |
2605 | move it to mathoms.c as a macro would evaluate name twice. */ | |
780a5241 NC |
2606 | CV* |
2607 | Perl_get_cv(pTHX_ const char *name, I32 flags) | |
2608 | { | |
7918f24d NC |
2609 | PERL_ARGS_ASSERT_GET_CV; |
2610 | ||
780a5241 NC |
2611 | return get_cvn_flags(name, strlen(name), flags); |
2612 | } | |
2613 | ||
79072805 LW |
2614 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2615 | ||
954c1994 | 2616 | /* |
ccfc67b7 JH |
2617 | |
2618 | =head1 Callback Functions | |
2619 | ||
954c1994 GS |
2620 | =for apidoc p||call_argv |
2621 | ||
f0b90de1 SF |
2622 | Performs a callback to the specified named and package-scoped Perl subroutine |
2623 | with C<argv> (a NULL-terminated array of strings) as arguments. See L<perlcall>. | |
2624 | ||
2625 | Approximate Perl equivalent: C<&{"$sub_name"}(@$argv)>. | |
954c1994 GS |
2626 | |
2627 | =cut | |
2628 | */ | |
2629 | ||
a0d0e21e | 2630 | I32 |
5aaab254 | 2631 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, char **argv) |
ac27b0f5 | 2632 | |
8ac85365 NIS |
2633 | /* See G_* flags in cop.h */ |
2634 | /* null terminated arg list */ | |
8990e307 | 2635 | { |
97aff369 | 2636 | dVAR; |
a0d0e21e | 2637 | dSP; |
8990e307 | 2638 | |
7918f24d NC |
2639 | PERL_ARGS_ASSERT_CALL_ARGV; |
2640 | ||
924508f0 | 2641 | PUSHMARK(SP); |
a0d0e21e | 2642 | if (argv) { |
8990e307 | 2643 | while (*argv) { |
6e449a3a | 2644 | mXPUSHs(newSVpv(*argv,0)); |
8990e307 LW |
2645 | argv++; |
2646 | } | |
a0d0e21e | 2647 | PUTBACK; |
8990e307 | 2648 | } |
864dbfa3 | 2649 | return call_pv(sub_name, flags); |
8990e307 LW |
2650 | } |
2651 | ||
954c1994 GS |
2652 | /* |
2653 | =for apidoc p||call_pv | |
2654 | ||
2655 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2656 | ||
2657 | =cut | |
2658 | */ | |
2659 | ||
a0d0e21e | 2660 | I32 |
864dbfa3 | 2661 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2662 | /* name of the subroutine */ |
2663 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2664 | { |
7918f24d NC |
2665 | PERL_ARGS_ASSERT_CALL_PV; |
2666 | ||
0da0e728 | 2667 | return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags); |
a0d0e21e LW |
2668 | } |
2669 | ||
954c1994 GS |
2670 | /* |
2671 | =for apidoc p||call_method | |
2672 | ||
2673 | Performs a callback to the specified Perl method. The blessed object must | |
2674 | be on the stack. See L<perlcall>. | |
2675 | ||
2676 | =cut | |
2677 | */ | |
2678 | ||
a0d0e21e | 2679 | I32 |
864dbfa3 | 2680 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2681 | /* name of the subroutine */ |
2682 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2683 | { |
46ca9bac | 2684 | STRLEN len; |
c106c2be | 2685 | SV* sv; |
7918f24d NC |
2686 | PERL_ARGS_ASSERT_CALL_METHOD; |
2687 | ||
46ca9bac | 2688 | len = strlen(methname); |
c106c2be RZ |
2689 | sv = flags & G_METHOD_NAMED |
2690 | ? sv_2mortal(newSVpvn_share(methname, len,0)) | |
2691 | : newSVpvn_flags(methname, len, SVs_TEMP); | |
46ca9bac | 2692 | |
c106c2be | 2693 | return call_sv(sv, flags | G_METHOD); |
a0d0e21e LW |
2694 | } |
2695 | ||
2696 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2697 | /* |
2698 | =for apidoc p||call_sv | |
2699 | ||
2700 | Performs a callback to the Perl sub whose name is in the SV. See | |
2701 | L<perlcall>. | |
2702 | ||
2703 | =cut | |
2704 | */ | |
2705 | ||
a0d0e21e | 2706 | I32 |
001d637e | 2707 | Perl_call_sv(pTHX_ SV *sv, VOL I32 flags) |
8ac85365 | 2708 | /* See G_* flags in cop.h */ |
a0d0e21e | 2709 | { |
27da23d5 | 2710 | dVAR; dSP; |
a0d0e21e | 2711 | LOGOP myop; /* fake syntax tree node */ |
c106c2be RZ |
2712 | UNOP method_unop; |
2713 | SVOP method_svop; | |
aa689395 | 2714 | I32 oldmark; |
8ea43dc8 | 2715 | VOL I32 retval = 0; |
a0d0e21e | 2716 | I32 oldscope; |
54310121 | 2717 | bool oldcatch = CATCH_GET; |
6224f72b | 2718 | int ret; |
c4420975 | 2719 | OP* const oldop = PL_op; |
db36c5a1 | 2720 | dJMPENV; |
1e422769 | 2721 | |
7918f24d NC |
2722 | PERL_ARGS_ASSERT_CALL_SV; |
2723 | ||
a0d0e21e LW |
2724 | if (flags & G_DISCARD) { |
2725 | ENTER; | |
2726 | SAVETMPS; | |
2727 | } | |
2f8edad0 NC |
2728 | if (!(flags & G_WANT)) { |
2729 | /* Backwards compatibility - as G_SCALAR was 0, it could be omitted. | |
2730 | */ | |
2731 | flags |= G_SCALAR; | |
2732 | } | |
a0d0e21e | 2733 | |
aa689395 | 2734 | Zero(&myop, 1, LOGOP); |
f51d4af5 | 2735 | if (!(flags & G_NOARGS)) |
aa689395 | 2736 | myop.op_flags |= OPf_STACKED; |
4f911530 | 2737 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
462e5cf6 | 2738 | SAVEOP(); |
533c011a | 2739 | PL_op = (OP*)&myop; |
aa689395 | 2740 | |
3280af22 | 2741 | EXTEND(PL_stack_sp, 1); |
c106c2be RZ |
2742 | if (!(flags & G_METHOD_NAMED)) |
2743 | *++PL_stack_sp = sv; | |
aa689395 | 2744 | oldmark = TOPMARK; |
3280af22 | 2745 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2746 | |
3280af22 | 2747 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2748 | /* Handle first BEGIN of -d. */ |
3280af22 | 2749 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 PP |
2750 | /* Try harder, since this may have been a sighandler, thus |
2751 | * curstash may be meaningless. */ | |
ea726b52 | 2752 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash) |
491527d0 | 2753 | && !(flags & G_NODEBUG)) |
5ff48db8 | 2754 | myop.op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2755 | |
c106c2be RZ |
2756 | if (flags & (G_METHOD|G_METHOD_NAMED)) { |
2757 | if ( flags & G_METHOD_NAMED ) { | |
2758 | Zero(&method_svop, 1, SVOP); | |
2759 | method_svop.op_next = (OP*)&myop; | |
2760 | method_svop.op_ppaddr = PL_ppaddr[OP_METHOD_NAMED]; | |
2761 | method_svop.op_type = OP_METHOD_NAMED; | |
2762 | method_svop.op_sv = sv; | |
2763 | PL_op = (OP*)&method_svop; | |
2764 | } else { | |
2765 | Zero(&method_unop, 1, UNOP); | |
2766 | method_unop.op_next = (OP*)&myop; | |
2767 | method_unop.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2768 | method_unop.op_type = OP_METHOD; | |
2769 | PL_op = (OP*)&method_unop; | |
2770 | } | |
2771 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
2772 | myop.op_type = OP_ENTERSUB; | |
2773 | ||
968b3946 GS |
2774 | } |
2775 | ||
312caa8e | 2776 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2777 | CATCH_SET(TRUE); |
d6f07c05 | 2778 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2779 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2780 | CATCH_SET(oldcatch); |
312caa8e CS |
2781 | } |
2782 | else { | |
d78bda3d | 2783 | myop.op_other = (OP*)&myop; |
3280af22 | 2784 | PL_markstack_ptr--; |
edb2152a | 2785 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2786 | PL_markstack_ptr++; |
a0d0e21e | 2787 | |
14dd3ad8 | 2788 | JMPENV_PUSH(ret); |
edb2152a | 2789 | |
6224f72b GS |
2790 | switch (ret) { |
2791 | case 0: | |
14dd3ad8 | 2792 | redo_body: |
d6f07c05 | 2793 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2794 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2795 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2796 | CLEAR_ERRSV(); |
8433848b | 2797 | } |
a0d0e21e | 2798 | break; |
6224f72b | 2799 | case 1: |
f86702cc | 2800 | STATUS_ALL_FAILURE; |
a0d0e21e | 2801 | /* FALL THROUGH */ |
6224f72b | 2802 | case 2: |
a0d0e21e | 2803 | /* my_exit() was called */ |
03d9f026 | 2804 | SET_CURSTASH(PL_defstash); |
a0d0e21e | 2805 | FREETMPS; |
14dd3ad8 | 2806 | JMPENV_POP; |
f86702cc | 2807 | my_exit_jump(); |
118e2215 | 2808 | assert(0); /* NOTREACHED */ |
6224f72b | 2809 | case 3: |
3280af22 | 2810 | if (PL_restartop) { |
febb3a6d | 2811 | PL_restartjmpenv = NULL; |
533c011a | 2812 | PL_op = PL_restartop; |
3280af22 | 2813 | PL_restartop = 0; |
312caa8e | 2814 | goto redo_body; |
a0d0e21e | 2815 | } |
3280af22 | 2816 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2817 | if ((flags & G_WANT) == G_ARRAY) |
a0d0e21e LW |
2818 | retval = 0; |
2819 | else { | |
2820 | retval = 1; | |
3280af22 | 2821 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2822 | } |
312caa8e | 2823 | break; |
a0d0e21e | 2824 | } |
a0d0e21e | 2825 | |
edb2152a NC |
2826 | if (PL_scopestack_ix > oldscope) |
2827 | delete_eval_scope(); | |
14dd3ad8 | 2828 | JMPENV_POP; |
a0d0e21e | 2829 | } |
1e422769 | 2830 | |
a0d0e21e | 2831 | if (flags & G_DISCARD) { |
3280af22 | 2832 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2833 | retval = 0; |
2834 | FREETMPS; | |
2835 | LEAVE; | |
2836 | } | |
533c011a | 2837 | PL_op = oldop; |
a0d0e21e LW |
2838 | return retval; |
2839 | } | |
2840 | ||
6e72f9df | 2841 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2842 | |
954c1994 GS |
2843 | /* |
2844 | =for apidoc p||eval_sv | |
2845 | ||
be064c4a DM |
2846 | Tells Perl to C<eval> the string in the SV. It supports the same flags |
2847 | as C<call_sv>, with the obvious exception of G_EVAL. See L<perlcall>. | |
954c1994 GS |
2848 | |
2849 | =cut | |
2850 | */ | |
2851 | ||
a0d0e21e | 2852 | I32 |
864dbfa3 | 2853 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2854 | |
8ac85365 | 2855 | /* See G_* flags in cop.h */ |
a0d0e21e | 2856 | { |
97aff369 | 2857 | dVAR; |
924508f0 | 2858 | dSP; |
a0d0e21e | 2859 | UNOP myop; /* fake syntax tree node */ |
8ea43dc8 SP |
2860 | VOL I32 oldmark = SP - PL_stack_base; |
2861 | VOL I32 retval = 0; | |
6224f72b | 2862 | int ret; |
c4420975 | 2863 | OP* const oldop = PL_op; |
db36c5a1 | 2864 | dJMPENV; |
84902520 | 2865 | |
7918f24d NC |
2866 | PERL_ARGS_ASSERT_EVAL_SV; |
2867 | ||
4633a7c4 LW |
2868 | if (flags & G_DISCARD) { |
2869 | ENTER; | |
2870 | SAVETMPS; | |
2871 | } | |
2872 | ||
462e5cf6 | 2873 | SAVEOP(); |
533c011a | 2874 | PL_op = (OP*)&myop; |
5ff48db8 | 2875 | Zero(&myop, 1, UNOP); |
3280af22 NIS |
2876 | EXTEND(PL_stack_sp, 1); |
2877 | *++PL_stack_sp = sv; | |
79072805 | 2878 | |
4633a7c4 LW |
2879 | if (!(flags & G_NOARGS)) |
2880 | myop.op_flags = OPf_STACKED; | |
6e72f9df | 2881 | myop.op_type = OP_ENTEREVAL; |
4f911530 | 2882 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
6e72f9df PP |
2883 | if (flags & G_KEEPERR) |
2884 | myop.op_flags |= OPf_SPECIAL; | |
a1941760 DM |
2885 | |
2886 | if (flags & G_RE_REPARSING) | |
2887 | myop.op_private = (OPpEVAL_COPHH | OPpEVAL_RE_REPARSING); | |
4633a7c4 | 2888 | |
dedbcade DM |
2889 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2890 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2891 | TAINT_PROPER("eval_sv()"); | |
2892 | ||
14dd3ad8 | 2893 | JMPENV_PUSH(ret); |
6224f72b GS |
2894 | switch (ret) { |
2895 | case 0: | |
14dd3ad8 | 2896 | redo_body: |
2ba65d5f DM |
2897 | if (PL_op == (OP*)(&myop)) { |
2898 | PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX); | |
2899 | if (!PL_op) | |
2900 | goto fail; /* failed in compilation */ | |
2901 | } | |
4aca2f62 | 2902 | CALLRUNOPS(aTHX); |
312caa8e | 2903 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2904 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2905 | CLEAR_ERRSV(); |
8433848b | 2906 | } |
4633a7c4 | 2907 | break; |
6224f72b | 2908 | case 1: |
f86702cc | 2909 | STATUS_ALL_FAILURE; |
4633a7c4 | 2910 | /* FALL THROUGH */ |
6224f72b | 2911 | case 2: |
4633a7c4 | 2912 | /* my_exit() was called */ |
03d9f026 | 2913 | SET_CURSTASH(PL_defstash); |
4633a7c4 | 2914 | FREETMPS; |
14dd3ad8 | 2915 | JMPENV_POP; |
f86702cc | 2916 | my_exit_jump(); |
118e2215 | 2917 | assert(0); /* NOTREACHED */ |
6224f72b | 2918 | case 3: |
3280af22 | 2919 | if (PL_restartop) { |
febb3a6d | 2920 | PL_restartjmpenv = NULL; |
533c011a | 2921 | PL_op = PL_restartop; |
3280af22 | 2922 | PL_restartop = 0; |
312caa8e | 2923 | goto redo_body; |
4633a7c4 | 2924 | } |
4aca2f62 | 2925 | fail: |
3280af22 | 2926 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2927 | if ((flags & G_WANT) == G_ARRAY) |
4633a7c4 LW |
2928 | retval = 0; |
2929 | else { | |
2930 | retval = 1; | |
3280af22 | 2931 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2932 | } |
312caa8e | 2933 | break; |
4633a7c4 LW |
2934 | } |
2935 | ||
14dd3ad8 | 2936 | JMPENV_POP; |
4633a7c4 | 2937 | if (flags & G_DISCARD) { |
3280af22 | 2938 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2939 | retval = 0; |
2940 | FREETMPS; | |
2941 | LEAVE; | |
2942 | } | |
533c011a | 2943 | PL_op = oldop; |
4633a7c4 LW |
2944 | return retval; |
2945 | } | |
2946 | ||
954c1994 GS |
2947 | /* |
2948 | =for apidoc p||eval_pv | |
2949 | ||
2950 | Tells Perl to C<eval> the given string and return an SV* result. | |
2951 | ||
2952 | =cut | |
2953 | */ | |
2954 | ||
137443ea | 2955 | SV* |
864dbfa3 | 2956 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2957 | { |
97aff369 | 2958 | dVAR; |
137443ea PP |
2959 | SV* sv = newSVpv(p, 0); |
2960 | ||
7918f24d NC |
2961 | PERL_ARGS_ASSERT_EVAL_PV; |
2962 | ||
864dbfa3 | 2963 | eval_sv(sv, G_SCALAR); |
137443ea PP |
2964 | SvREFCNT_dec(sv); |
2965 | ||
ed1786ad DD |
2966 | { |
2967 | dSP; | |
2968 | sv = POPs; | |
2969 | PUTBACK; | |
2970 | } | |
137443ea | 2971 | |
eed484f9 DD |
2972 | /* just check empty string or undef? */ |
2973 | if (croak_on_error) { | |
2974 | SV * const errsv = ERRSV; | |
2975 | if(SvTRUE_NN(errsv)) | |
2976 | /* replace with croak_sv? */ | |
2977 | Perl_croak_nocontext("%s", SvPV_nolen_const(errsv)); | |
2d8e6c8d | 2978 | } |
137443ea PP |
2979 | |
2980 | return sv; | |
2981 | } | |
2982 | ||
4633a7c4 LW |
2983 | /* Require a module. */ |
2984 | ||
954c1994 | 2985 | /* |
ccfc67b7 JH |
2986 | =head1 Embedding Functions |
2987 | ||
954c1994 GS |
2988 | =for apidoc p||require_pv |
2989 | ||
7d3fb230 BS |
2990 | Tells Perl to C<require> the file named by the string argument. It is |
2991 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2992 | implemented that way; consider using load_module instead. |
954c1994 | 2993 | |
7d3fb230 | 2994 | =cut */ |
954c1994 | 2995 | |
4633a7c4 | 2996 | void |
864dbfa3 | 2997 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2998 | { |
97aff369 | 2999 | dVAR; |
d3acc0f7 | 3000 | dSP; |
97aff369 | 3001 | SV* sv; |
7918f24d NC |
3002 | |
3003 | PERL_ARGS_ASSERT_REQUIRE_PV; | |
3004 | ||
e788e7d3 | 3005 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 3006 | PUTBACK; |
be41e5d9 NC |
3007 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
3008 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
3009 | SPAGAIN; |
3010 | POPSTACK; | |
79072805 LW |
3011 | } |
3012 | ||
76e3520e | 3013 | STATIC void |
b6f82619 | 3014 | S_usage(pTHX) /* XXX move this out into a module ? */ |
4633a7c4 | 3015 | { |
ab821d7f | 3016 | /* This message really ought to be max 23 lines. |
75c72d73 | 3017 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 3018 | |
1566c39d NC |
3019 | /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89 |
3020 | minimum of 509 character string literals. */ | |
27da23d5 | 3021 | static const char * const usage_msg[] = { |
1566c39d NC |
3022 | " -0[octal] specify record separator (\\0, if no argument)\n" |
3023 | " -a autosplit mode with -n or -p (splits $_ into @F)\n" | |
3024 | " -C[number/list] enables the listed Unicode features\n" | |
3025 | " -c check syntax only (runs BEGIN and CHECK blocks)\n" | |
3026 | " -d[:debugger] run program under debugger\n" | |
3027 | " -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n", | |
3028 | " -e program one line of program (several -e's allowed, omit programfile)\n" | |
3029 | " -E program like -e, but enables all optional features\n" | |
3030 | " -f don't do $sitelib/sitecustomize.pl at startup\n" | |
3031 | " -F/pattern/ split() pattern for -a switch (//'s are optional)\n" | |
3032 | " -i[extension] edit <> files in place (makes backup if extension supplied)\n" | |
3033 | " -Idirectory specify @INC/#include directory (several -I's allowed)\n", | |
3034 | " -l[octal] enable line ending processing, specifies line terminator\n" | |
3035 | " -[mM][-]module execute \"use/no module...\" before executing program\n" | |
3036 | " -n assume \"while (<>) { ... }\" loop around program\n" | |
3037 | " -p assume loop like -n but print line also, like sed\n" | |
3038 | " -s enable rudimentary parsing for switches after programfile\n" | |
3039 | " -S look for programfile using PATH environment variable\n", | |
3040 | " -t enable tainting warnings\n" | |
3041 | " -T enable tainting checks\n" | |
3042 | " -u dump core after parsing program\n" | |
3043 | " -U allow unsafe operations\n" | |
3044 | " -v print version, patchlevel and license\n" | |
3045 | " -V[:variable] print configuration summary (or a single Config.pm variable)\n", | |
60eaec42 | 3046 | " -w enable many useful warnings\n" |
1566c39d NC |
3047 | " -W enable all warnings\n" |
3048 | " -x[directory] ignore text before #!perl line (optionally cd to directory)\n" | |
3049 | " -X disable all warnings\n" | |
3050 | " \n" | |
3051 | "Run 'perldoc perl' for more help with Perl.\n\n", | |
fb73857a PP |
3052 | NULL |
3053 | }; | |
27da23d5 | 3054 | const char * const *p = usage_msg; |
1566c39d | 3055 | PerlIO *out = PerlIO_stdout(); |
fb73857a | 3056 | |
1566c39d NC |
3057 | PerlIO_printf(out, |
3058 | "\nUsage: %s [switches] [--] [programfile] [arguments]\n", | |
b6f82619 | 3059 | PL_origargv[0]); |
fb73857a | 3060 | while (*p) |
1566c39d | 3061 | PerlIO_puts(out, *p++); |
b6f82619 | 3062 | my_exit(0); |
4633a7c4 LW |
3063 | } |
3064 | ||
b4ab917c DM |
3065 | /* convert a string of -D options (or digits) into an int. |
3066 | * sets *s to point to the char after the options */ | |
3067 | ||
3068 | #ifdef DEBUGGING | |
3069 | int | |
e1ec3a88 | 3070 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 3071 | { |
27da23d5 | 3072 | static const char * const usage_msgd[] = { |
651b8f1a NC |
3073 | " Debugging flag values: (see also -d)\n" |
3074 | " p Tokenizing and parsing (with v, displays parse stack)\n" | |
3075 | " s Stack snapshots (with v, displays all stacks)\n" | |
3076 | " l Context (loop) stack processing\n" | |
3077 | " t Trace execution\n" | |
3078 | " o Method and overloading resolution\n", | |
3079 | " c String/numeric conversions\n" | |
3080 | " P Print profiling info, source file input state\n" | |
3081 | " m Memory and SV allocation\n" | |
3082 | " f Format processing\n" | |
3083 | " r Regular expression parsing and execution\n" | |
3084 | " x Syntax tree dump\n", | |
3085 | " u Tainting checks\n" | |
3086 | " H Hash dump -- usurps values()\n" | |
3087 | " X Scratchpad allocation\n" | |
3088 | " D Cleaning up\n" | |
56967202 | 3089 | " S Op slab allocation\n" |
651b8f1a NC |
3090 | " T Tokenising\n" |
3091 | " R Include reference counts of dumped variables (eg when using -Ds)\n", | |
3092 | " J Do not s,t,P-debug (Jump over) opcodes within package DB\n" | |
3093 | " v Verbose: use in conjunction with other flags\n" | |
3094 | " C Copy On Write\n" | |
3095 | " A Consistency checks on internal structures\n" | |
3096 | " q quiet - currently only suppresses the 'EXECUTING' message\n" | |
3097 | " M trace smart match resolution\n" | |
3098 | " B dump suBroutine definitions, including special Blocks like BEGIN\n", | |
e6e64d9b JC |
3099 | NULL |
3100 | }; | |
b4ab917c | 3101 | int i = 0; |
7918f24d NC |
3102 | |
3103 | PERL_ARGS_ASSERT_GET_DEBUG_OPTS; | |
3104 | ||
b4ab917c DM |
3105 | if (isALPHA(**s)) { |
3106 | /* if adding extra options, remember to update DEBUG_MASK */ | |
cc8773c0 | 3107 | static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMB"; |
b4ab917c | 3108 | |
0eb30aeb | 3109 | for (; isWORDCHAR(**s); (*s)++) { |
c4420975 | 3110 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
3111 | if (d) |
3112 | i |= 1 << (d - debopts); | |
3113 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
3114 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
3115 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
3116 | } |
3117 | } | |
e6e64d9b | 3118 | else if (isDIGIT(**s)) { |
b4ab917c | 3119 | i = atoi(*s); |
0eb30aeb | 3120 | for (; isWORDCHAR(**s); (*s)++) ; |
b4ab917c | 3121 | } |
ddcf8bc1 | 3122 | else if (givehelp) { |
06e869a4 | 3123 | const char *const *p = usage_msgd; |
651b8f1a | 3124 | while (*p) PerlIO_puts(PerlIO_stdout(), *p++); |
e6e64d9b | 3125 | } |
b4ab917c DM |
3126 | # ifdef EBCDIC |
3127 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
3128 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
3129 | "-Dp not implemented on this platform\n"); | |
3130 | # endif | |
3131 | return i; | |
3132 | } | |
3133 | #endif | |
3134 | ||
79072805 LW |
3135 | /* This routine handles any switches that can be given during run */ |
3136 | ||
c7030b81 NC |
3137 | const char * |
3138 | Perl_moreswitches(pTHX_ const char *s) | |
79072805 | 3139 | { |
27da23d5 | 3140 | dVAR; |
84c133a0 | 3141 | UV rschar; |
0544e6df | 3142 | const char option = *s; /* used to remember option in -m/-M code */ |
79072805 | 3143 | |
7918f24d NC |
3144 | PERL_ARGS_ASSERT_MORESWITCHES; |
3145 | ||
79072805 LW |
3146 | switch (*s) { |
3147 | case '0': | |
a863c7d1 | 3148 | { |
f2095865 | 3149 | I32 flags = 0; |
a3b680e6 | 3150 | STRLEN numlen; |
f2095865 JH |
3151 | |
3152 | SvREFCNT_dec(PL_rs); | |
3153 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 3154 | const char *e = s+=2; |
f2095865 JH |
3155 | U8 *tmps; |
3156 | ||
a3b680e6 AL |
3157 | while (*e) |
3158 | e++; | |
f2095865 JH |
3159 | numlen = e - s; |
3160 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
3161 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
3162 | if (s + numlen < e) { | |
3163 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
3164 | numlen = 0; | |
3165 | s--; | |
3166 | } | |
396482e1 | 3167 | PL_rs = newSVpvs(""); |
c5661c80 | 3168 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
3169 | tmps = (U8*)SvPVX(PL_rs); |
3170 | uvchr_to_utf8(tmps, rschar); | |
3171 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
3172 | SvUTF8_on(PL_rs); | |
3173 | } | |
3174 | else { | |
3175 | numlen = 4; | |
3176 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
3177 | if (rschar & ~((U8)~0)) | |
3178 | PL_rs = &PL_sv_undef; | |
3179 | else if (!rschar && numlen >= 2) | |
396482e1 | 3180 | PL_rs = newSVpvs(""); |
f2095865 JH |
3181 | else { |
3182 | char ch = (char)rschar; | |
3183 | PL_rs = newSVpvn(&ch, 1); | |
3184 | } | |
3185 | } | |
64ace3f8 | 3186 | sv_setsv(get_sv("/", GV_ADD), PL_rs); |
f2095865 | 3187 | return s + numlen; |
a863c7d1 | 3188 | } |
46487f74 | 3189 | case 'C': |
a05d7ebb | 3190 | s++; |
dd374669 | 3191 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
5a22a2bb NC |
3192 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3193 | PL_utf8cache = -1; | |
46487f74 | 3194 | return s; |
2304df62 | 3195 | case 'F': |
3280af22 | 3196 | PL_minus_F = TRUE; |
ebce5377 RGS |
3197 | PL_splitstr = ++s; |
3198 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3199 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3200 | return s; |
79072805 | 3201 | case 'a': |
3280af22 | 3202 | PL_minus_a = TRUE; |
79072805 LW |
3203 | s++; |
3204 | return s; | |
3205 | case 'c': | |
3280af22 | 3206 | PL_minus_c = TRUE; |
79072805 LW |
3207 | s++; |
3208 | return s; | |
3209 | case 'd': | |
f20b2998 | 3210 | forbid_setid('d', FALSE); |
4633a7c4 | 3211 | s++; |
2cbb2ee1 RGS |
3212 | |
3213 | /* -dt indicates to the debugger that threads will be used */ | |
0eb30aeb | 3214 | if (*s == 't' && !isWORDCHAR(s[1])) { |
2cbb2ee1 RGS |
3215 | ++s; |
3216 | my_setenv("PERL5DB_THREADED", "1"); | |
3217 | } | |
3218 | ||
70c94a19 RR |
3219 | /* The following permits -d:Mod to accepts arguments following an = |
3220 | in the fashion that -MSome::Mod does. */ | |
3221 | if (*s == ':' || *s == '=') { | |
b19934fb NC |
3222 | const char *start; |
3223 | const char *end; | |
3224 | SV *sv; | |
3225 | ||
3226 | if (*++s == '-') { | |
3227 | ++s; | |
3228 | sv = newSVpvs("no Devel::"); | |
3229 | } else { | |
3230 | sv = newSVpvs("use Devel::"); | |
3231 | } | |
3232 | ||
3233 | start = s; | |
3234 | end = s + strlen(s); | |
f85893a1 | 3235 | |
b19934fb | 3236 | /* We now allow -d:Module=Foo,Bar and -d:-Module */ |
0eb30aeb | 3237 | while(isWORDCHAR(*s) || *s==':') ++s; |
70c94a19 | 3238 | if (*s != '=') |
f85893a1 | 3239 | sv_catpvn(sv, start, end - start); |
70c94a19 RR |
3240 | else { |
3241 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3242 | /* Don't use NUL as q// delimiter here, this string goes in the |
3243 | * environment. */ | |
3244 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3245 | } |
f85893a1 | 3246 | s = end; |
184f32ec | 3247 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
c4db126b | 3248 | SvREFCNT_dec(sv); |
4633a7c4 | 3249 | } |
ed094faf | 3250 | if (!PL_perldb) { |
3280af22 | 3251 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3252 | init_debugger(); |
ed094faf | 3253 | } |
79072805 LW |
3254 | return s; |
3255 | case 'D': | |
0453d815 | 3256 | { |
79072805 | 3257 | #ifdef DEBUGGING |
f20b2998 | 3258 | forbid_setid('D', FALSE); |
b4ab917c | 3259 | s++; |
dd374669 | 3260 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3261 | #else /* !DEBUGGING */ |
0453d815 | 3262 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3263 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3264 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
0eb30aeb | 3265 | for (s++; isWORDCHAR(*s); s++) ; |
79072805 | 3266 | #endif |
79072805 | 3267 | return s; |
0453d815 | 3268 | } |
4633a7c4 | 3269 | case 'h': |
b6f82619 | 3270 | usage(); |
79072805 | 3271 | case 'i': |
43c5f42d | 3272 | Safefree(PL_inplace); |
c030f24b GH |
3273 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3274 | if (*(s+1) == '\0') { | |
c86a4f2e | 3275 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3276 | return s+1; |
3277 | } | |
3278 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3279 | { |
d4c19fe8 | 3280 | const char * const start = ++s; |
5ef5d758 NC |
3281 | while (*s && !isSPACE(*s)) |
3282 | ++s; | |
3283 | ||
3284 | PL_inplace = savepvn(start, s - start); | |
3285 | } | |
7b8d334a | 3286 | if (*s) { |
5ef5d758 | 3287 | ++s; |
7b8d334a | 3288 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3289 | s++; |
7b8d334a | 3290 | } |
fb73857a | 3291 | return s; |
4e49a025 | 3292 | case 'I': /* -I handled both here and in parse_body() */ |
f20b2998 | 3293 | forbid_setid('I', FALSE); |
fb73857a PP |
3294 | ++s; |
3295 | while (*s && isSPACE(*s)) | |
3296 | ++s; | |
3297 | if (*s) { | |
c7030b81 | 3298 | const char *e, *p; |
0df16ed7 GS |
3299 | p = s; |
3300 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3301 | do { | |
3302 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3303 | p = e; | |
3304 | while (isSPACE(*p)) | |
3305 | p++; | |
3306 | } while (*p && *p != '-'); | |
55b4bc1c | 3307 | incpush(s, e-s, |
e28f3139 | 3308 | INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT); |
0df16ed7 GS |
3309 | s = p; |
3310 | if (*s == '-') | |
3311 | s++; | |
79072805 LW |
3312 | } |
3313 | else | |
a67e862a | 3314 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3315 | return s; |
79072805 | 3316 | case 'l': |
3280af22 | 3317 | PL_minus_l = TRUE; |
79072805 | 3318 | s++; |
7889fe52 NIS |
3319 | if (PL_ors_sv) { |
3320 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3321 | PL_ors_sv = NULL; |
7889fe52 | 3322 | } |
79072805 | 3323 | if (isDIGIT(*s)) { |
53305cf1 | 3324 | I32 flags = 0; |
a3b680e6 | 3325 | STRLEN numlen; |
396482e1 | 3326 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3327 | numlen = 3 + (*s == '0'); |
3328 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3329 | s += numlen; |
3330 | } | |
3331 | else { | |
8bfdd7d9 | 3332 | if (RsPARA(PL_rs)) { |
396482e1 | 3333 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3334 | } |
3335 | else { | |
8bfdd7d9 | 3336 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3337 | } |
79072805 LW |
3338 | } |
3339 | return s; | |
1a30305b | 3340 | case 'M': |
f20b2998 | 3341 | forbid_setid('M', FALSE); /* XXX ? */ |
1a30305b PP |
3342 | /* FALL THROUGH */ |
3343 | case 'm': | |
f20b2998 | 3344 | forbid_setid('m', FALSE); /* XXX ? */ |
1a30305b | 3345 | if (*++s) { |
c7030b81 | 3346 | const char *start; |
b64cb68c | 3347 | const char *end; |
11343788 | 3348 | SV *sv; |
e1ec3a88 | 3349 | const char *use = "use "; |
0544e6df | 3350 | bool colon = FALSE; |
a5f75d66 | 3351 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3352 | /* Leading space on " no " is deliberate, to make both |
3353 | possibilities the same length. */ | |
3354 | if (*s == '-') { use = " no "; ++s; } | |
3355 | sv = newSVpvn(use,4); | |
a5f75d66 | 3356 | start = s; |
1a30305b | 3357 | /* We allow -M'Module qw(Foo Bar)' */ |
0eb30aeb | 3358 | while(isWORDCHAR(*s) || *s==':') { |
0544e6df RB |
3359 | if( *s++ == ':' ) { |
3360 | if( *s == ':' ) | |
3361 | s++; | |
3362 | else | |
3363 | colon = TRUE; | |
3364 | } | |
3365 | } | |
3366 | if (s == start) | |
3367 | Perl_croak(aTHX_ "Module name required with -%c option", | |
3368 | option); | |
3369 | if (colon) | |
3370 | Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: " | |
3371 | "contains single ':'", | |
63da6837 | 3372 | (int)(s - start), start, option); |
b64cb68c | 3373 | end = s + strlen(s); |
c07a80fd | 3374 | if (*s != '=') { |
b64cb68c | 3375 | sv_catpvn(sv, start, end - start); |
0544e6df | 3376 | if (option == 'm') { |
c07a80fd | 3377 | if (*s != '\0') |
cea2e8a9 | 3378 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3379 | sv_catpvs( sv, " ()"); |
c07a80fd PP |
3380 | } |
3381 | } else { | |
11343788 | 3382 | sv_catpvn(sv, start, s-start); |
b64cb68c NC |
3383 | /* Use NUL as q''-delimiter. */ |
3384 | sv_catpvs(sv, " split(/,/,q\0"); | |
3385 | ++s; | |
3386 | sv_catpvn(sv, s, end - s); | |
396482e1 | 3387 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3388 | } |
b64cb68c | 3389 | s = end; |
29a861e7 | 3390 | Perl_av_create_and_push(aTHX_ &PL_preambleav, sv); |
1a30305b PP |
3391 | } |
3392 | else | |
0544e6df | 3393 | Perl_croak(aTHX_ "Missing argument to -%c", option); |
1a30305b | 3394 | return s; |
79072805 | 3395 | case 'n': |
3280af22 | 3396 | PL_minus_n = TRUE; |
79072805 LW |
3397 | s++; |
3398 | return s; | |
3399 | case 'p': | |
3280af22 | 3400 | PL_minus_p = TRUE; |
79072805 LW |
3401 | s++; |
3402 | return s; | |
3403 | case 's': | |
f20b2998 | 3404 | forbid_setid('s', FALSE); |
3280af22 | 3405 | PL_doswitches = TRUE; |
79072805 LW |
3406 | s++; |
3407 | return s; | |
6537fe72 | 3408 | case 't': |
27a6968b | 3409 | case 'T': |
284167a5 SM |
3410 | #if SILENT_NO_TAINT_SUPPORT |
3411 | /* silently ignore */ | |
3412 | #elif NO_TAINT_SUPPORT | |
3231f579 | 3413 | Perl_croak_nocontext("This perl was compiled without taint support. " |
284167a5 SM |
3414 | "Cowardly refusing to run with -t or -T flags"); |
3415 | #else | |
3416 | if (!TAINTING_get) | |
27a6968b | 3417 | TOO_LATE_FOR(*s); |
284167a5 | 3418 | #endif |
6537fe72 | 3419 | s++; |
463ee0b2 | 3420 | return s; |
79072805 | 3421 | case 'u': |
3280af22 | 3422 | PL_do_undump = TRUE; |
79072805 LW |
3423 | s++; |
3424 | return s; | |
3425 | case 'U': | |
3280af22 | 3426 | PL_unsafe = TRUE; |
79072805 LW |
3427 | s++; |
3428 | return s; | |
3429 | case 'v': | |
c4bc78d9 NC |
3430 | minus_v(); |
3431 | case 'w': | |
3432 | if (! (PL_dowarn & G_WARN_ALL_MASK)) { | |
3433 | PL_dowarn |= G_WARN_ON; | |
3434 | } | |
3435 | s++; | |
3436 | return s; | |
3437 | case 'W': | |
3438 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; | |
3439 | if (!specialWARN(PL_compiling.cop_warnings)) | |
3440 | PerlMemShared_free(PL_compiling.cop_warnings); | |
3441 | PL_compiling.cop_warnings = pWARN_ALL ; | |
3442 | s++; | |
3443 | return s; | |
3444 | case 'X': | |
3445 | PL_dowarn = G_WARN_ALL_OFF; | |
3446 | if (!specialWARN(PL_compiling.cop_warnings)) | |
3447 | PerlMemShared_free(PL_compiling.cop_warnings); | |
3448 | PL_compiling.cop_warnings = pWARN_NONE ; | |
3449 | s++; | |
3450 | return s; | |
3451 | case '*': | |
3452 | case ' ': | |
3453 | while( *s == ' ' ) | |
3454 | ++s; | |
3455 | if (s[0] == '-') /* Additional switches on #! line. */ | |
3456 | return s+1; | |
3457 | break; | |
3458 | case '-': | |
3459 | case 0: | |
3460 | #if defined(WIN32) || !defined(PERL_STRICT_CR) | |
3461 | case '\r': | |
3462 | #endif | |
3463 | case '\n': | |
3464 | case '\t': | |
3465 | break; | |
3466 | #ifdef ALTERNATE_SHEBANG | |
3467 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3468 | break; | |
3469 | #endif | |
4bb78d63 CB |
3470 | case 'e': case 'f': case 'x': case 'E': |
3471 | #ifndef ALTERNATE_SHEBANG | |
3472 | case 'S': | |
3473 | #endif | |
3474 | case 'V': | |
c4bc78d9 | 3475 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
b7e077d0 FC |
3476 | default: |
3477 | Perl_croak(aTHX_ | |
3478 | "Unrecognized switch: -%.1s (-h will show valid options)",s | |
3479 | ); | |
c4bc78d9 NC |
3480 | } |
3481 | return NULL; | |
3482 | } | |
3483 | ||
3484 | ||
3485 | STATIC void | |
3486 | S_minus_v(pTHX) | |
3487 | { | |
fc3381af | 3488 | PerlIO * PIO_stdout; |
d7aa5382 | 3489 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3490 | upg_version(PL_patchlevel, TRUE); |
46807d8e YO |
3491 | { |
3492 | SV* level= vstringify(PL_patchlevel); | |
3493 | #ifdef PERL_PATCHNUM | |
23d483e2 NC |
3494 | # ifdef PERL_GIT_UNCOMMITTED_CHANGES |
3495 | SV *num = newSVpvs(PERL_PATCHNUM "*"); | |
3496 | # else | |
3497 | SV *num = newSVpvs(PERL_PATCHNUM); | |
3498 | # endif | |
fc3381af DD |
3499 | { |
3500 | STRLEN level_len, num_len; | |
3501 | char * level_str, * num_str; | |
3502 | num_str = SvPV(num, num_len); | |
3503 | level_str = SvPV(level, level_len); | |
3504 | if (num_len>=level_len && strnEQ(num_str,level_str,level_len)) { | |
3505 | SvREFCNT_dec(level); | |
3506 | level= num; | |
3507 | } else { | |
3508 | Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num); | |
3509 | SvREFCNT_dec(num); | |
3510 | } | |
46807d8e YO |
3511 | } |
3512 | #endif | |
fc3381af DD |
3513 | PIO_stdout = PerlIO_stdout(); |
3514 | PerlIO_printf(PIO_stdout, | |
ded326e4 DG |
3515 | "\nThis is perl " STRINGIFY(PERL_REVISION) |
3516 | ", version " STRINGIFY(PERL_VERSION) | |
3517 | ", subversion " STRINGIFY(PERL_SUBVERSION) | |
3518 | " (%"SVf") built for " ARCHNAME, level | |
3519 | ); | |
46807d8e YO |
3520 | SvREFCNT_dec(level); |
3521 | } | |
fb73857a PP |
3522 | #if defined(LOCAL_PATCH_COUNT) |
3523 | if (LOCAL_PATCH_COUNT > 0) | |
fc3381af | 3524 | PerlIO_printf(PIO_stdout, |
b0e47665 GS |
3525 | "\n(with %d registered patch%s, " |
3526 | "see perl -V for more detail)", | |
bb7a0f54 | 3527 | LOCAL_PATCH_COUNT, |
b0e47665 | 3528 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3529 | #endif |
1a30305b | 3530 | |
fc3381af | 3531 | PerlIO_printf(PIO_stdout, |
d907e2e9 | 3532 | "\n\nCopyright 1987-2013, Larry Wall\n"); |
79072805 | 3533 | #ifdef MSDOS |
fc3381af | 3534 | PerlIO_printf(PIO_stdout, |
b0e47665 | 3535 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\ |