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[perl5.git] / dump.c
1 /*    dump.c
2  *
3  *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
4  *    2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
5  *
6  *    You may distribute under the terms of either the GNU General Public
7  *    License or the Artistic License, as specified in the README file.
8  *
9  */
10
11 /*
12  *  'You have talked long in your sleep, Frodo,' said Gandalf gently, 'and
13  *   it has not been hard for me to read your mind and memory.'
14  *
15  *     [p.220 of _The Lord of the Rings_, II/i: "Many Meetings"]
16  */
17
18 /* This file contains utility routines to dump the contents of SV and OP
19  * structures, as used by command-line options like -Dt and -Dx, and
20  * by Devel::Peek.
21  *
22  * It also holds the debugging version of the  runops function.
23  */
24
25 #include "EXTERN.h"
26 #define PERL_IN_DUMP_C
27 #include "perl.h"
28 #include "regcomp.h"
29
30 static const char* const svtypenames[SVt_LAST] = {
31     "NULL",
32     "IV",
33     "NV",
34     "PV",
35     "INVLIST",
36     "PVIV",
37     "PVNV",
38     "PVMG",
39     "REGEXP",
40     "PVGV",
41     "PVLV",
42     "PVAV",
43     "PVHV",
44     "PVCV",
45     "PVFM",
46     "PVIO"
47 };
48
49
50 static const char* const svshorttypenames[SVt_LAST] = {
51     "UNDEF",
52     "IV",
53     "NV",
54     "PV",
55     "INVLST",
56     "PVIV",
57     "PVNV",
58     "PVMG",
59     "REGEXP",
60     "GV",
61     "PVLV",
62     "AV",
63     "HV",
64     "CV",
65     "FM",
66     "IO"
67 };
68
69 struct flag_to_name {
70     U32 flag;
71     const char *name;
72 };
73
74 static void
75 S_append_flags(pTHX_ SV *sv, U32 flags, const struct flag_to_name *start,
76                const struct flag_to_name *const end)
77 {
78     do {
79         if (flags & start->flag)
80             sv_catpv(sv, start->name);
81     } while (++start < end);
82 }
83
84 #define append_flags(sv, f, flags) \
85     S_append_flags(aTHX_ (sv), (f), (flags), C_ARRAY_END(flags))
86
87
88
89 void
90 Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
91 {
92     va_list args;
93     PERL_ARGS_ASSERT_DUMP_INDENT;
94     va_start(args, pat);
95     dump_vindent(level, file, pat, &args);
96     va_end(args);
97 }
98
99 void
100 Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
101 {
102     dVAR;
103     PERL_ARGS_ASSERT_DUMP_VINDENT;
104     PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
105     PerlIO_vprintf(file, pat, *args);
106 }
107
108 void
109 Perl_dump_all(pTHX)
110 {
111     dump_all_perl(FALSE);
112 }
113
114 void
115 Perl_dump_all_perl(pTHX_ bool justperl)
116 {
117
118     dVAR;
119     PerlIO_setlinebuf(Perl_debug_log);
120     if (PL_main_root)
121         op_dump(PL_main_root);
122     dump_packsubs_perl(PL_defstash, justperl);
123 }
124
125 void
126 Perl_dump_packsubs(pTHX_ const HV *stash)
127 {
128     PERL_ARGS_ASSERT_DUMP_PACKSUBS;
129     dump_packsubs_perl(stash, FALSE);
130 }
131
132 void
133 Perl_dump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
134 {
135     dVAR;
136     I32 i;
137
138     PERL_ARGS_ASSERT_DUMP_PACKSUBS_PERL;
139
140     if (!HvARRAY(stash))
141         return;
142     for (i = 0; i <= (I32) HvMAX(stash); i++) {
143         const HE *entry;
144         for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
145             const GV * const gv = (const GV *)HeVAL(entry);
146             if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
147                 continue;
148             if (GvCVu(gv))
149                 dump_sub_perl(gv, justperl);
150             if (GvFORM(gv))
151                 dump_form(gv);
152             if (HeKEY(entry)[HeKLEN(entry)-1] == ':') {
153                 const HV * const hv = GvHV(gv);
154                 if (hv && (hv != PL_defstash))
155                     dump_packsubs_perl(hv, justperl); /* nested package */
156             }
157         }
158     }
159 }
160
161 void
162 Perl_dump_sub(pTHX_ const GV *gv)
163 {
164     PERL_ARGS_ASSERT_DUMP_SUB;
165     dump_sub_perl(gv, FALSE);
166 }
167
168 void
169 Perl_dump_sub_perl(pTHX_ const GV *gv, bool justperl)
170 {
171     SV * sv;
172
173     PERL_ARGS_ASSERT_DUMP_SUB_PERL;
174
175     if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
176         return;
177
178     sv = sv_newmortal();
179     gv_fullname3(sv, gv, NULL);
180     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nSUB %s = ", SvPVX_const(sv));
181     if (CvISXSUB(GvCV(gv)))
182         Perl_dump_indent(aTHX_ 0, Perl_debug_log, "(xsub 0x%"UVxf" %d)\n",
183             PTR2UV(CvXSUB(GvCV(gv))),
184             (int)CvXSUBANY(GvCV(gv)).any_i32);
185     else if (CvROOT(GvCV(gv)))
186         op_dump(CvROOT(GvCV(gv)));
187     else
188         Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
189 }
190
191 void
192 Perl_dump_form(pTHX_ const GV *gv)
193 {
194     SV * const sv = sv_newmortal();
195
196     PERL_ARGS_ASSERT_DUMP_FORM;
197
198     gv_fullname3(sv, gv, NULL);
199     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nFORMAT %s = ", SvPVX_const(sv));
200     if (CvROOT(GvFORM(gv)))
201         op_dump(CvROOT(GvFORM(gv)));
202     else
203         Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
204 }
205
206 void
207 Perl_dump_eval(pTHX)
208 {
209     dVAR;
210     op_dump(PL_eval_root);
211 }
212
213
214 /*
215 =for apidoc pv_escape
216
217 Escapes at most the first "count" chars of pv and puts the results into
218 dsv such that the size of the escaped string will not exceed "max" chars
219 and will not contain any incomplete escape sequences.
220
221 If flags contains PERL_PV_ESCAPE_QUOTE then any double quotes in the string
222 will also be escaped.
223
224 Normally the SV will be cleared before the escaped string is prepared,
225 but when PERL_PV_ESCAPE_NOCLEAR is set this will not occur.
226
227 If PERL_PV_ESCAPE_UNI is set then the input string is treated as Unicode,
228 if PERL_PV_ESCAPE_UNI_DETECT is set then the input string is scanned
229 using C<is_utf8_string()> to determine if it is Unicode.
230
231 If PERL_PV_ESCAPE_ALL is set then all input chars will be output
232 using C<\x01F1> style escapes, otherwise if PERL_PV_ESCAPE_NONASCII is set, only
233 chars above 127 will be escaped using this style; otherwise, only chars above
234 255 will be so escaped; other non printable chars will use octal or
235 common escaped patterns like C<\n>. Otherwise, if PERL_PV_ESCAPE_NOBACKSLASH
236 then all chars below 255 will be treated as printable and
237 will be output as literals.
238
239 If PERL_PV_ESCAPE_FIRSTCHAR is set then only the first char of the
240 string will be escaped, regardless of max. If the output is to be in hex,
241 then it will be returned as a plain hex
242 sequence. Thus the output will either be a single char,
243 an octal escape sequence, a special escape like C<\n> or a hex value.
244
245 If PERL_PV_ESCAPE_RE is set then the escape char used will be a '%' and
246 not a '\\'. This is because regexes very often contain backslashed
247 sequences, whereas '%' is not a particularly common character in patterns.
248
249 Returns a pointer to the escaped text as held by dsv.
250
251 =cut
252 */
253 #define PV_ESCAPE_OCTBUFSIZE 32
254
255 char *
256 Perl_pv_escape( pTHX_ SV *dsv, char const * const str, 
257                 const STRLEN count, const STRLEN max, 
258                 STRLEN * const escaped, const U32 flags ) 
259 {
260     const char esc = (flags & PERL_PV_ESCAPE_RE) ? '%' : '\\';
261     const char dq = (flags & PERL_PV_ESCAPE_QUOTE) ? '"' : esc;
262     char octbuf[PV_ESCAPE_OCTBUFSIZE] = "%123456789ABCDF";
263     STRLEN wrote = 0;    /* chars written so far */
264     STRLEN chsize = 0;   /* size of data to be written */
265     STRLEN readsize = 1; /* size of data just read */
266     bool isuni= flags & PERL_PV_ESCAPE_UNI ? 1 : 0; /* is this Unicode */
267     const char *pv  = str;
268     const char * const end = pv + count; /* end of string */
269     octbuf[0] = esc;
270
271     PERL_ARGS_ASSERT_PV_ESCAPE;
272
273     if (!(flags & PERL_PV_ESCAPE_NOCLEAR)) {
274             /* This won't alter the UTF-8 flag */
275             sv_setpvs(dsv, "");
276     }
277     
278     if ((flags & PERL_PV_ESCAPE_UNI_DETECT) && is_utf8_string((U8*)pv, count))
279         isuni = 1;
280     
281     for ( ; (pv < end && (!max || (wrote < max))) ; pv += readsize ) {
282         const UV u= (isuni) ? utf8_to_uvchr_buf((U8*)pv, (U8*) end, &readsize) : (U8)*pv;
283         const U8 c = (U8)u & 0xFF;
284         
285         if ( ( u > 255 )
286           || (flags & PERL_PV_ESCAPE_ALL)
287           || (( u > 127 ) && (flags & PERL_PV_ESCAPE_NONASCII)))
288         {
289             if (flags & PERL_PV_ESCAPE_FIRSTCHAR) 
290                 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE, 
291                                       "%"UVxf, u);
292             else
293                 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE, 
294                                       "%cx{%"UVxf"}", esc, u);
295         } else if (flags & PERL_PV_ESCAPE_NOBACKSLASH) {
296             chsize = 1;            
297         } else {         
298             if ( (c == dq) || (c == esc) || !isPRINT(c) ) {
299                 chsize = 2;
300                 switch (c) {
301                 
302                 case '\\' : /* fallthrough */
303                 case '%'  : if ( c == esc )  {
304                                 octbuf[1] = esc;  
305                             } else {
306                                 chsize = 1;
307                             }
308                             break;
309                 case '\v' : octbuf[1] = 'v';  break;
310                 case '\t' : octbuf[1] = 't';  break;
311                 case '\r' : octbuf[1] = 'r';  break;
312                 case '\n' : octbuf[1] = 'n';  break;
313                 case '\f' : octbuf[1] = 'f';  break;
314                 case '"'  : 
315                         if ( dq == '"' ) 
316                                 octbuf[1] = '"';
317                         else 
318                             chsize = 1;
319                         break;
320                 default:
321                         if ( (pv+readsize < end) && isDIGIT((U8)*(pv+readsize)) )
322                             chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE, 
323                                                   "%c%03o", esc, c);
324                         else
325                             chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE, 
326                                                   "%c%o", esc, c);
327                 }
328             } else {
329                 chsize = 1;
330             }
331         }
332         if ( max && (wrote + chsize > max) ) {
333             break;
334         } else if (chsize > 1) {
335             sv_catpvn(dsv, octbuf, chsize);
336             wrote += chsize;
337         } else {
338             /* If PERL_PV_ESCAPE_NOBACKSLASH is set then bytes in the range
339                128-255 can be appended raw to the dsv. If dsv happens to be
340                UTF-8 then we need catpvf to upgrade them for us.
341                Or add a new API call sv_catpvc(). Think about that name, and
342                how to keep it clear that it's unlike the s of catpvs, which is
343                really an array octets, not a string.  */
344             Perl_sv_catpvf( aTHX_ dsv, "%c", c);
345             wrote++;
346         }
347         if ( flags & PERL_PV_ESCAPE_FIRSTCHAR ) 
348             break;
349     }
350     if (escaped != NULL)
351         *escaped= pv - str;
352     return SvPVX(dsv);
353 }
354 /*
355 =for apidoc pv_pretty
356
357 Converts a string into something presentable, handling escaping via
358 pv_escape() and supporting quoting and ellipses.
359
360 If the PERL_PV_PRETTY_QUOTE flag is set then the result will be 
361 double quoted with any double quotes in the string escaped. Otherwise
362 if the PERL_PV_PRETTY_LTGT flag is set then the result be wrapped in
363 angle brackets. 
364
365 If the PERL_PV_PRETTY_ELLIPSES flag is set and not all characters in
366 string were output then an ellipsis C<...> will be appended to the
367 string. Note that this happens AFTER it has been quoted.
368
369 If start_color is non-null then it will be inserted after the opening
370 quote (if there is one) but before the escaped text. If end_color
371 is non-null then it will be inserted after the escaped text but before
372 any quotes or ellipses.
373
374 Returns a pointer to the prettified text as held by dsv.
375
376 =cut           
377 */
378
379 char *
380 Perl_pv_pretty( pTHX_ SV *dsv, char const * const str, const STRLEN count, 
381   const STRLEN max, char const * const start_color, char const * const end_color, 
382   const U32 flags ) 
383 {
384     const U8 dq = (flags & PERL_PV_PRETTY_QUOTE) ? '"' : '%';
385     STRLEN escaped;
386  
387     PERL_ARGS_ASSERT_PV_PRETTY;
388    
389     if (!(flags & PERL_PV_PRETTY_NOCLEAR)) {
390             /* This won't alter the UTF-8 flag */
391             sv_setpvs(dsv, "");
392     }
393
394     if ( dq == '"' )
395         sv_catpvs(dsv, "\"");
396     else if ( flags & PERL_PV_PRETTY_LTGT )
397         sv_catpvs(dsv, "<");
398         
399     if ( start_color != NULL ) 
400         sv_catpv(dsv, start_color);
401     
402     pv_escape( dsv, str, count, max, &escaped, flags | PERL_PV_ESCAPE_NOCLEAR );    
403     
404     if ( end_color != NULL ) 
405         sv_catpv(dsv, end_color);
406
407     if ( dq == '"' ) 
408         sv_catpvs( dsv, "\"");
409     else if ( flags & PERL_PV_PRETTY_LTGT )
410         sv_catpvs(dsv, ">");         
411     
412     if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
413             sv_catpvs(dsv, "...");
414  
415     return SvPVX(dsv);
416 }
417
418 /*
419 =for apidoc pv_display
420
421 Similar to
422
423   pv_escape(dsv,pv,cur,pvlim,PERL_PV_ESCAPE_QUOTE);
424
425 except that an additional "\0" will be appended to the string when
426 len > cur and pv[cur] is "\0".
427
428 Note that the final string may be up to 7 chars longer than pvlim.
429
430 =cut
431 */
432
433 char *
434 Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
435 {
436     PERL_ARGS_ASSERT_PV_DISPLAY;
437
438     pv_pretty( dsv, pv, cur, pvlim, NULL, NULL, PERL_PV_PRETTY_DUMP);
439     if (len > cur && pv[cur] == '\0')
440             sv_catpvs( dsv, "\\0");
441     return SvPVX(dsv);
442 }
443
444 char *
445 Perl_sv_peek(pTHX_ SV *sv)
446 {
447     dVAR;
448     SV * const t = sv_newmortal();
449     int unref = 0;
450     U32 type;
451
452     sv_setpvs(t, "");
453   retry:
454     if (!sv) {
455         sv_catpv(t, "VOID");
456         goto finish;
457     }
458     else if (sv == (const SV *)0x55555555 || ((char)SvTYPE(sv)) == 'U') {
459         /* detect data corruption under memory poisoning */
460         sv_catpv(t, "WILD");
461         goto finish;
462     }
463     else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
464         if (sv == &PL_sv_undef) {
465             sv_catpv(t, "SV_UNDEF");
466             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
467                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
468                 SvREADONLY(sv))
469                 goto finish;
470         }
471         else if (sv == &PL_sv_no) {
472             sv_catpv(t, "SV_NO");
473             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
474                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
475                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
476                                   SVp_POK|SVp_NOK)) &&
477                 SvCUR(sv) == 0 &&
478                 SvNVX(sv) == 0.0)
479                 goto finish;
480         }
481         else if (sv == &PL_sv_yes) {
482             sv_catpv(t, "SV_YES");
483             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
484                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
485                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
486                                   SVp_POK|SVp_NOK)) &&
487                 SvCUR(sv) == 1 &&
488                 SvPVX_const(sv) && *SvPVX_const(sv) == '1' &&
489                 SvNVX(sv) == 1.0)
490                 goto finish;
491         }
492         else {
493             sv_catpv(t, "SV_PLACEHOLDER");
494             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
495                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
496                 SvREADONLY(sv))
497                 goto finish;
498         }
499         sv_catpv(t, ":");
500     }
501     else if (SvREFCNT(sv) == 0) {
502         sv_catpv(t, "(");
503         unref++;
504     }
505     else if (DEBUG_R_TEST_) {
506         int is_tmp = 0;
507         I32 ix;
508         /* is this SV on the tmps stack? */
509         for (ix=PL_tmps_ix; ix>=0; ix--) {
510             if (PL_tmps_stack[ix] == sv) {
511                 is_tmp = 1;
512                 break;
513             }
514         }
515         if (SvREFCNT(sv) > 1)
516             Perl_sv_catpvf(aTHX_ t, "<%"UVuf"%s>", (UV)SvREFCNT(sv),
517                     is_tmp ? "T" : "");
518         else if (is_tmp)
519             sv_catpv(t, "<T>");
520     }
521
522     if (SvROK(sv)) {
523         sv_catpv(t, "\\");
524         if (SvCUR(t) + unref > 10) {
525             SvCUR_set(t, unref + 3);
526             *SvEND(t) = '\0';
527             sv_catpv(t, "...");
528             goto finish;
529         }
530         sv = SvRV(sv);
531         goto retry;
532     }
533     type = SvTYPE(sv);
534     if (type == SVt_PVCV) {
535         Perl_sv_catpvf(aTHX_ t, "CV(%s)", CvGV(sv) ? GvNAME(CvGV(sv)) : "");
536         goto finish;
537     } else if (type < SVt_LAST) {
538         sv_catpv(t, svshorttypenames[type]);
539
540         if (type == SVt_NULL)
541             goto finish;
542     } else {
543         sv_catpv(t, "FREED");
544         goto finish;
545     }
546
547     if (SvPOKp(sv)) {
548         if (!SvPVX_const(sv))
549             sv_catpv(t, "(null)");
550         else {
551             SV * const tmp = newSVpvs("");
552             sv_catpv(t, "(");
553             if (SvOOK(sv)) {
554                 STRLEN delta;
555                 SvOOK_offset(sv, delta);
556                 Perl_sv_catpvf(aTHX_ t, "[%s]", pv_display(tmp, SvPVX_const(sv)-delta, delta, 0, 127));
557             }
558             Perl_sv_catpvf(aTHX_ t, "%s)", pv_display(tmp, SvPVX_const(sv), SvCUR(sv), SvLEN(sv), 127));
559             if (SvUTF8(sv))
560                 Perl_sv_catpvf(aTHX_ t, " [UTF8 \"%s\"]",
561                                sv_uni_display(tmp, sv, 6 * SvCUR(sv),
562                                               UNI_DISPLAY_QQ));
563             SvREFCNT_dec_NN(tmp);
564         }
565     }
566     else if (SvNOKp(sv)) {
567         STORE_NUMERIC_LOCAL_SET_STANDARD();
568         Perl_sv_catpvf(aTHX_ t, "(%"NVgf")",SvNVX(sv));
569         RESTORE_NUMERIC_LOCAL();
570     }
571     else if (SvIOKp(sv)) {
572         if (SvIsUV(sv))
573             Perl_sv_catpvf(aTHX_ t, "(%"UVuf")", (UV)SvUVX(sv));
574         else
575             Perl_sv_catpvf(aTHX_ t, "(%"IVdf")", (IV)SvIVX(sv));
576     }
577     else
578         sv_catpv(t, "()");
579
580   finish:
581     while (unref--)
582         sv_catpv(t, ")");
583     if (TAINTING_get && SvTAINTED(sv))
584         sv_catpv(t, " [tainted]");
585     return SvPV_nolen(t);
586 }
587
588 void
589 Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
590 {
591     char ch;
592
593     PERL_ARGS_ASSERT_DO_PMOP_DUMP;
594
595     if (!pm) {
596         Perl_dump_indent(aTHX_ level, file, "{}\n");
597         return;
598     }
599     Perl_dump_indent(aTHX_ level, file, "{\n");
600     level++;
601     if (pm->op_pmflags & PMf_ONCE)
602         ch = '?';
603     else
604         ch = '/';
605     if (PM_GETRE(pm))
606         Perl_dump_indent(aTHX_ level, file, "PMf_PRE %c%s%c%s\n",
607              ch, RX_PRECOMP(PM_GETRE(pm)), ch,
608              (pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
609     else
610         Perl_dump_indent(aTHX_ level, file, "PMf_PRE (RUNTIME)\n");
611     if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
612         Perl_dump_indent(aTHX_ level, file, "PMf_REPL = ");
613         op_dump(pm->op_pmreplrootu.op_pmreplroot);
614     }
615     if (pm->op_code_list) {
616         if (pm->op_pmflags & PMf_CODELIST_PRIVATE) {
617             Perl_dump_indent(aTHX_ level, file, "CODE_LIST =\n");
618             do_op_dump(level, file, pm->op_code_list);
619         }
620         else
621             Perl_dump_indent(aTHX_ level, file, "CODE_LIST = 0x%"UVxf"\n",
622                                     PTR2UV(pm->op_code_list));
623     }
624     if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
625         SV * const tmpsv = pm_description(pm);
626         Perl_dump_indent(aTHX_ level, file, "PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
627         SvREFCNT_dec_NN(tmpsv);
628     }
629
630     Perl_dump_indent(aTHX_ level-1, file, "}\n");
631 }
632
633 const struct flag_to_name pmflags_flags_names[] = {
634     {PMf_CONST, ",CONST"},
635     {PMf_KEEP, ",KEEP"},
636     {PMf_GLOBAL, ",GLOBAL"},
637     {PMf_CONTINUE, ",CONTINUE"},
638     {PMf_RETAINT, ",RETAINT"},
639     {PMf_EVAL, ",EVAL"},
640     {PMf_NONDESTRUCT, ",NONDESTRUCT"},
641     {PMf_HAS_CV, ",HAS_CV"},
642     {PMf_CODELIST_PRIVATE, ",CODELIST_PRIVATE"},
643     {PMf_IS_QR, ",IS_QR"}
644 };
645
646 static SV *
647 S_pm_description(pTHX_ const PMOP *pm)
648 {
649     SV * const desc = newSVpvs("");
650     const REGEXP * const regex = PM_GETRE(pm);
651     const U32 pmflags = pm->op_pmflags;
652
653     PERL_ARGS_ASSERT_PM_DESCRIPTION;
654
655     if (pmflags & PMf_ONCE)
656         sv_catpv(desc, ",ONCE");
657 #ifdef USE_ITHREADS
658     if (SvREADONLY(PL_regex_pad[pm->op_pmoffset]))
659         sv_catpv(desc, ":USED");
660 #else
661     if (pmflags & PMf_USED)
662         sv_catpv(desc, ":USED");
663 #endif
664
665     if (regex) {
666         if (RX_ISTAINTED(regex))
667             sv_catpv(desc, ",TAINTED");
668         if (RX_CHECK_SUBSTR(regex)) {
669             if (!(RX_EXTFLAGS(regex) & RXf_NOSCAN))
670                 sv_catpv(desc, ",SCANFIRST");
671             if (RX_EXTFLAGS(regex) & RXf_CHECK_ALL)
672                 sv_catpv(desc, ",ALL");
673         }
674         if (RX_EXTFLAGS(regex) & RXf_SKIPWHITE)
675             sv_catpv(desc, ",SKIPWHITE");
676     }
677
678     append_flags(desc, pmflags, pmflags_flags_names);
679     return desc;
680 }
681
682 void
683 Perl_pmop_dump(pTHX_ PMOP *pm)
684 {
685     do_pmop_dump(0, Perl_debug_log, pm);
686 }
687
688 /* Return a unique integer to represent the address of op o.
689  * If it already exists in PL_op_sequence, just return it;
690  * otherwise add it.
691  *  *** Note that this isn't thread-safe */
692
693 STATIC UV
694 S_sequence_num(pTHX_ const OP *o)
695 {
696     dVAR;
697     SV     *op,
698           **seq;
699     const char *key;
700     STRLEN  len;
701     if (!o)
702         return 0;
703     op = newSVuv(PTR2UV(o));
704     sv_2mortal(op);
705     key = SvPV_const(op, len);
706     if (!PL_op_sequence)
707         PL_op_sequence = newHV();
708     seq = hv_fetch(PL_op_sequence, key, len, 0);
709     if (seq)
710         return SvUV(*seq);
711     (void)hv_store(PL_op_sequence, key, len, newSVuv(++PL_op_seq), 0);
712     return PL_op_seq;
713 }
714
715 const struct flag_to_name op_flags_names[] = {
716     {OPf_KIDS, ",KIDS"},
717     {OPf_PARENS, ",PARENS"},
718     {OPf_REF, ",REF"},
719     {OPf_MOD, ",MOD"},
720     {OPf_STACKED, ",STACKED"},
721     {OPf_SPECIAL, ",SPECIAL"}
722 };
723
724 const struct flag_to_name op_trans_names[] = {
725     {OPpTRANS_FROM_UTF, ",FROM_UTF"},
726     {OPpTRANS_TO_UTF, ",TO_UTF"},
727     {OPpTRANS_IDENTICAL, ",IDENTICAL"},
728     {OPpTRANS_SQUASH, ",SQUASH"},
729     {OPpTRANS_COMPLEMENT, ",COMPLEMENT"},
730     {OPpTRANS_GROWS, ",GROWS"},
731     {OPpTRANS_DELETE, ",DELETE"}
732 };
733
734 const struct flag_to_name op_entersub_names[] = {
735     {OPpENTERSUB_DB, ",DB"},
736     {OPpENTERSUB_HASTARG, ",HASTARG"},
737     {OPpENTERSUB_AMPER, ",AMPER"},
738     {OPpENTERSUB_NOPAREN, ",NOPAREN"},
739     {OPpENTERSUB_INARGS, ",INARGS"}
740 };
741
742 const struct flag_to_name op_const_names[] = {
743     {OPpCONST_NOVER, ",NOVER"},
744     {OPpCONST_SHORTCIRCUIT, ",SHORTCIRCUIT"},
745     {OPpCONST_STRICT, ",STRICT"},
746     {OPpCONST_ENTERED, ",ENTERED"},
747     {OPpCONST_FOLDED, ",FOLDED"},
748     {OPpCONST_BARE, ",BARE"}
749 };
750
751 const struct flag_to_name op_sort_names[] = {
752     {OPpSORT_NUMERIC, ",NUMERIC"},
753     {OPpSORT_INTEGER, ",INTEGER"},
754     {OPpSORT_REVERSE, ",REVERSE"},
755     {OPpSORT_INPLACE, ",INPLACE"},
756     {OPpSORT_DESCEND, ",DESCEND"},
757     {OPpSORT_QSORT, ",QSORT"},
758     {OPpSORT_STABLE, ",STABLE"}
759 };
760
761 const struct flag_to_name op_open_names[] = {
762     {OPpOPEN_IN_RAW, ",IN_RAW"},
763     {OPpOPEN_IN_CRLF, ",IN_CRLF"},
764     {OPpOPEN_OUT_RAW, ",OUT_RAW"},
765     {OPpOPEN_OUT_CRLF, ",OUT_CRLF"}
766 };
767
768 const struct flag_to_name op_exit_names[] = {
769     {OPpEXIT_VMSISH, ",EXIT_VMSISH"},
770     {OPpHUSH_VMSISH, ",HUSH_VMSISH"}
771 };
772
773 const struct flag_to_name op_sassign_names[] = {
774     {OPpASSIGN_BACKWARDS, ",BACKWARDS"},
775     {OPpASSIGN_CV_TO_GV,  ",CV2GV"}
776 };
777
778 #define OP_PRIVATE_ONCE(op, flag, name) \
779     const struct flag_to_name CAT2(op, _names)[] = {    \
780         {(flag), (name)} \
781     }
782
783 OP_PRIVATE_ONCE(op_leavesub, OPpREFCOUNTED, ",REFCOUNTED");
784 OP_PRIVATE_ONCE(op_repeat, OPpREPEAT_DOLIST, ",DOLIST");
785 OP_PRIVATE_ONCE(op_reverse, OPpREVERSE_INPLACE, ",INPLACE");
786 OP_PRIVATE_ONCE(op_rv2cv, OPpLVAL_INTRO, ",INTRO");
787 OP_PRIVATE_ONCE(op_flip, OPpFLIP_LINENUM, ",LINENUM");
788 OP_PRIVATE_ONCE(op_gv, OPpEARLY_CV, ",EARLY_CV");
789 OP_PRIVATE_ONCE(op_list, OPpLIST_GUESSED, ",GUESSED");
790 OP_PRIVATE_ONCE(op_delete, OPpSLICE, ",SLICE");
791 OP_PRIVATE_ONCE(op_exists, OPpEXISTS_SUB, ",EXISTS_SUB");
792 OP_PRIVATE_ONCE(op_die, OPpHUSH_VMSISH, ",HUSH_VMSISH");
793 OP_PRIVATE_ONCE(op_split, OPpSPLIT_IMPLIM, ",IMPLIM");
794
795 struct op_private_by_op {
796     U16 op_type;
797     U16 len;
798     const struct flag_to_name *start;
799 };
800
801 const struct op_private_by_op op_private_names[] = {
802     {OP_LEAVESUB, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
803     {OP_LEAVE, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
804     {OP_LEAVESUBLV, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
805     {OP_LEAVEWRITE, C_ARRAY_LENGTH(op_leavesub_names), op_leavesub_names },
806     {OP_DIE, C_ARRAY_LENGTH(op_die_names), op_die_names },
807     {OP_DELETE, C_ARRAY_LENGTH(op_delete_names), op_delete_names },
808     {OP_EXISTS, C_ARRAY_LENGTH(op_exists_names), op_exists_names },
809     {OP_EXIT, C_ARRAY_LENGTH(op_exit_names), op_exit_names },
810     {OP_FLIP, C_ARRAY_LENGTH(op_flip_names), op_flip_names },
811     {OP_FLOP, C_ARRAY_LENGTH(op_flip_names), op_flip_names },
812     {OP_GV, C_ARRAY_LENGTH(op_gv_names), op_gv_names },
813     {OP_LIST, C_ARRAY_LENGTH(op_list_names), op_list_names },
814     {OP_SASSIGN, C_ARRAY_LENGTH(op_sassign_names), op_sassign_names },
815     {OP_REPEAT, C_ARRAY_LENGTH(op_repeat_names), op_repeat_names },
816     {OP_RV2CV, C_ARRAY_LENGTH(op_rv2cv_names), op_rv2cv_names },
817     {OP_TRANS, C_ARRAY_LENGTH(op_trans_names), op_trans_names },
818     {OP_CONST, C_ARRAY_LENGTH(op_const_names), op_const_names },
819     {OP_SORT, C_ARRAY_LENGTH(op_sort_names), op_sort_names },
820     {OP_OPEN, C_ARRAY_LENGTH(op_open_names), op_open_names },
821     {OP_SPLIT, C_ARRAY_LENGTH(op_split_names), op_split_names },
822     {OP_BACKTICK, C_ARRAY_LENGTH(op_open_names), op_open_names }
823 };
824
825 static bool
826 S_op_private_to_names(pTHX_ SV *tmpsv, U32 optype, U32 op_private) {
827     const struct op_private_by_op *start = op_private_names;
828     const struct op_private_by_op *const end
829         = op_private_names + C_ARRAY_LENGTH(op_private_names);
830
831     /* This is a linear search, but no worse than the code that it replaced.
832        It's debugging code - size is more important than speed.  */
833     do {
834         if (optype == start->op_type) {
835             S_append_flags(aTHX_ tmpsv, op_private, start->start,
836                            start->start + start->len);
837             return TRUE;
838         }
839     } while (++start < end);
840     return FALSE;
841 }
842
843 #define DUMP_OP_FLAGS(o,xml,level,file)                                 \
844     if (o->op_flags || o->op_slabbed || o->op_savefree || o->op_static) { \
845         SV * const tmpsv = newSVpvs("");                                \
846         switch (o->op_flags & OPf_WANT) {                               \
847         case OPf_WANT_VOID:                                             \
848             sv_catpv(tmpsv, ",VOID");                                   \
849             break;                                                      \
850         case OPf_WANT_SCALAR:                                           \
851             sv_catpv(tmpsv, ",SCALAR");                                 \
852             break;                                                      \
853         case OPf_WANT_LIST:                                             \
854             sv_catpv(tmpsv, ",LIST");                                   \
855             break;                                                      \
856         default:                                                        \
857             sv_catpv(tmpsv, ",UNKNOWN");                                \
858             break;                                                      \
859         }                                                               \
860         append_flags(tmpsv, o->op_flags, op_flags_names);               \
861         if (o->op_slabbed)  sv_catpvs(tmpsv, ",SLABBED");               \
862         if (o->op_savefree) sv_catpvs(tmpsv, ",SAVEFREE");              \
863         if (o->op_static)   sv_catpvs(tmpsv, ",STATIC");                \
864         if (o->op_folded)   sv_catpvs(tmpsv, ",FOLDED");                \
865         if (!xml)                                                        \
866             Perl_dump_indent(aTHX_ level, file, "FLAGS = (%s)\n",       \
867                             SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");\
868         else                                                            \
869             PerlIO_printf(file, " flags=\"%s\"",                        \
870                           SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");        \
871         SvREFCNT_dec_NN(tmpsv);                                            \
872     }
873
874 #if !defined(PERL_MAD)
875 # define xmldump_attr1(level, file, pat, arg)
876 #else
877 # define xmldump_attr1(level, file, pat, arg) \
878         S_xmldump_attr(aTHX_ level, file, pat, arg)
879 #endif
880
881 #define DUMP_OP_PRIVATE(o,xml,level,file)                               \
882     if (o->op_private) {                                                \
883         U32 optype = o->op_type;                                        \
884         U32 oppriv = o->op_private;                                     \
885         SV * const tmpsv = newSVpvs("");                                \
886         if (PL_opargs[optype] & OA_TARGLEX) {                           \
887             if (oppriv & OPpTARGET_MY)                                  \
888                 sv_catpv(tmpsv, ",TARGET_MY");                          \
889         }                                                               \
890         else if (optype == OP_ENTERSUB ||                               \
891                  optype == OP_RV2SV ||                                  \
892                  optype == OP_GVSV ||                                   \
893                  optype == OP_RV2AV ||                                  \
894                  optype == OP_RV2HV ||                                  \
895                  optype == OP_RV2GV ||                                  \
896                  optype == OP_AELEM ||                                  \
897                  optype == OP_HELEM )                                   \
898         {                                                               \
899             if (optype == OP_ENTERSUB) {                                \
900                 append_flags(tmpsv, oppriv, op_entersub_names);         \
901             }                                                           \
902             else {                                                      \
903                 switch (oppriv & OPpDEREF) {                            \
904                 case OPpDEREF_SV:                                       \
905                     sv_catpv(tmpsv, ",SV");                             \
906                     break;                                              \
907                 case OPpDEREF_AV:                                       \
908                     sv_catpv(tmpsv, ",AV");                             \
909                     break;                                              \
910                 case OPpDEREF_HV:                                       \
911                     sv_catpv(tmpsv, ",HV");                             \
912                     break;                                              \
913                 }                                                       \
914                 if (oppriv & OPpMAYBE_LVSUB)                            \
915                     sv_catpv(tmpsv, ",MAYBE_LVSUB");                    \
916             }                                                           \
917             if (optype == OP_AELEM || optype == OP_HELEM) {             \
918                 if (oppriv & OPpLVAL_DEFER)                             \
919                     sv_catpv(tmpsv, ",LVAL_DEFER");                     \
920             }                                                           \
921             else if (optype == OP_RV2HV || optype == OP_PADHV) {        \
922                 if (oppriv & OPpMAYBE_TRUEBOOL)                         \
923                     sv_catpvs(tmpsv, ",OPpMAYBE_TRUEBOOL");             \
924                 if (oppriv & OPpTRUEBOOL)                               \
925                     sv_catpvs(tmpsv, ",OPpTRUEBOOL");                   \
926             }                                                           \
927             else {                                                      \
928                 if (oppriv & HINT_STRICT_REFS)                          \
929                     sv_catpv(tmpsv, ",STRICT_REFS");                    \
930                 if (oppriv & OPpOUR_INTRO)                              \
931                     sv_catpv(tmpsv, ",OUR_INTRO");                      \
932             }                                                           \
933         }                                                               \
934         else if (S_op_private_to_names(aTHX_ tmpsv, optype, oppriv)) {  \
935         }                                                               \
936         else if (OP_IS_FILETEST(o->op_type)) {                          \
937             if (oppriv & OPpFT_ACCESS)                                  \
938                 sv_catpv(tmpsv, ",FT_ACCESS");                          \
939             if (oppriv & OPpFT_STACKED)                                 \
940                 sv_catpv(tmpsv, ",FT_STACKED");                         \
941             if (oppriv & OPpFT_STACKING)                                \
942                 sv_catpv(tmpsv, ",FT_STACKING");                        \
943             if (oppriv & OPpFT_AFTER_t)                                 \
944                 sv_catpv(tmpsv, ",AFTER_t");                            \
945         }                                                               \
946         else if (o->op_type == OP_AASSIGN) {                            \
947             if (oppriv & OPpASSIGN_COMMON)                              \
948                 sv_catpvs(tmpsv, ",COMMON");                            \
949             if (oppriv & OPpMAYBE_LVSUB)                                \
950                 sv_catpvs(tmpsv, ",MAYBE_LVSUB");                       \
951         }                                                               \
952         if (o->op_flags & OPf_MOD && oppriv & OPpLVAL_INTRO)            \
953             sv_catpv(tmpsv, ",INTRO");                                  \
954         if (o->op_type == OP_PADRANGE)                                  \
955             Perl_sv_catpvf(aTHX_ tmpsv, ",COUNT=%"UVuf,                 \
956                            (UV)(oppriv & OPpPADRANGE_COUNTMASK));       \
957         if (SvCUR(tmpsv)) {                                             \
958             if (xml)                                                    \
959                 xmldump_attr1(level+1, file, "private=\"%s\"", SvPVX(tmpsv)+1); \
960             else                                                        \
961                 Perl_dump_indent(aTHX_ level, file, "PRIVATE = (%s)\n", SvPVX_const(tmpsv) + 1); \
962         } else if (!xml)                                                \
963             Perl_dump_indent(aTHX_ level, file, "PRIVATE = (0x%"UVxf")\n", \
964                              (UV)oppriv);                               \
965         SvREFCNT_dec_NN(tmpsv);                                         \
966     }
967
968
969 void
970 Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o)
971 {
972     dVAR;
973     UV      seq;
974     const OPCODE optype = o->op_type;
975
976     PERL_ARGS_ASSERT_DO_OP_DUMP;
977
978     Perl_dump_indent(aTHX_ level, file, "{\n");
979     level++;
980     seq = sequence_num(o);
981     if (seq)
982         PerlIO_printf(file, "%-4"UVuf, seq);
983     else
984         PerlIO_printf(file, "????");
985     PerlIO_printf(file,
986                   "%*sTYPE = %s  ===> ",
987                   (int)(PL_dumpindent*level-4), "", OP_NAME(o));
988     if (o->op_next)
989         PerlIO_printf(file,
990                         o->op_type == OP_NULL ? "(%"UVuf")\n" : "%"UVuf"\n",
991                                 sequence_num(o->op_next));
992     else
993         PerlIO_printf(file, "NULL\n");
994     if (o->op_targ) {
995         if (optype == OP_NULL) {
996             Perl_dump_indent(aTHX_ level, file, "  (was %s)\n", PL_op_name[o->op_targ]);
997             if (o->op_targ == OP_NEXTSTATE) {
998                 if (CopLINE(cCOPo))
999                     Perl_dump_indent(aTHX_ level, file, "LINE = %"UVuf"\n",
1000                                      (UV)CopLINE(cCOPo));
1001                 if (CopSTASHPV(cCOPo))
1002                     Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
1003                                      CopSTASHPV(cCOPo));
1004                 if (CopLABEL(cCOPo))
1005                     Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
1006                                      CopLABEL(cCOPo));
1007             }
1008         }
1009         else
1010             Perl_dump_indent(aTHX_ level, file, "TARG = %ld\n", (long)o->op_targ);
1011     }
1012 #ifdef DUMPADDR
1013     Perl_dump_indent(aTHX_ level, file, "ADDR = 0x%"UVxf" => 0x%"UVxf"\n", (UV)o, (UV)o->op_next);
1014 #endif
1015
1016     DUMP_OP_FLAGS(o,0,level,file);
1017     DUMP_OP_PRIVATE(o,0,level,file);
1018
1019 #ifdef PERL_MAD
1020     if (PL_madskills && o->op_madprop) {
1021         SV * const tmpsv = newSVpvs("");
1022         MADPROP* mp = o->op_madprop;
1023         Perl_dump_indent(aTHX_ level, file, "MADPROPS = {\n");
1024         level++;
1025         while (mp) {
1026             const char tmp = mp->mad_key;
1027             sv_setpvs(tmpsv,"'");
1028             if (tmp)
1029                 sv_catpvn(tmpsv, &tmp, 1);
1030             sv_catpv(tmpsv, "'=");
1031             switch (mp->mad_type) {
1032             case MAD_NULL:
1033                 sv_catpv(tmpsv, "NULL");
1034                 Perl_dump_indent(aTHX_ level, file, "%s\n", SvPVX(tmpsv));
1035                 break;
1036             case MAD_PV:
1037                 sv_catpv(tmpsv, "<");
1038                 sv_catpvn(tmpsv, (char*)mp->mad_val, mp->mad_vlen);
1039                 sv_catpv(tmpsv, ">");
1040                 Perl_dump_indent(aTHX_ level, file, "%s\n", SvPVX(tmpsv));
1041                 break;
1042             case MAD_OP:
1043                 if ((OP*)mp->mad_val) {
1044                     Perl_dump_indent(aTHX_ level, file, "%s\n", SvPVX(tmpsv));
1045                     do_op_dump(level, file, (OP*)mp->mad_val);
1046                 }
1047                 break;
1048             default:
1049                 sv_catpv(tmpsv, "(UNK)");
1050                 Perl_dump_indent(aTHX_ level, file, "%s\n", SvPVX(tmpsv));
1051                 break;
1052             }
1053             mp = mp->mad_next;
1054         }
1055         level--;
1056         Perl_dump_indent(aTHX_ level, file, "}\n");
1057
1058         SvREFCNT_dec_NN(tmpsv);
1059     }
1060 #endif
1061
1062     switch (optype) {
1063     case OP_AELEMFAST:
1064     case OP_GVSV:
1065     case OP_GV:
1066 #ifdef USE_ITHREADS
1067         Perl_dump_indent(aTHX_ level, file, "PADIX = %" IVdf "\n", (IV)cPADOPo->op_padix);
1068 #else
1069         if ( ! (o->op_flags & OPf_SPECIAL)) { /* not lexical */
1070             if (cSVOPo->op_sv) {
1071                 SV * const tmpsv = newSV(0);
1072                 ENTER;
1073                 SAVEFREESV(tmpsv);
1074 #ifdef PERL_MAD
1075                 /* FIXME - is this making unwarranted assumptions about the
1076                    UTF-8 cleanliness of the dump file handle?  */
1077                 SvUTF8_on(tmpsv);
1078 #endif
1079                 gv_fullname3(tmpsv, MUTABLE_GV(cSVOPo->op_sv), NULL);
1080                 Perl_dump_indent(aTHX_ level, file, "GV = %s\n",
1081                                  SvPV_nolen_const(tmpsv));
1082                 LEAVE;
1083             }
1084             else
1085                 Perl_dump_indent(aTHX_ level, file, "GV = NULL\n");
1086         }
1087 #endif
1088         break;
1089     case OP_CONST:
1090     case OP_HINTSEVAL:
1091     case OP_METHOD_NAMED:
1092 #ifndef USE_ITHREADS
1093         /* with ITHREADS, consts are stored in the pad, and the right pad
1094          * may not be active here, so skip */
1095         Perl_dump_indent(aTHX_ level, file, "SV = %s\n", SvPEEK(cSVOPo_sv));
1096 #endif
1097         break;
1098     case OP_NEXTSTATE:
1099     case OP_DBSTATE:
1100         if (CopLINE(cCOPo))
1101             Perl_dump_indent(aTHX_ level, file, "LINE = %"UVuf"\n",
1102                              (UV)CopLINE(cCOPo));
1103         if (CopSTASHPV(cCOPo))
1104             Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
1105                              CopSTASHPV(cCOPo));
1106         if (CopLABEL(cCOPo))
1107             Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
1108                              CopLABEL(cCOPo));
1109         break;
1110     case OP_ENTERLOOP:
1111         Perl_dump_indent(aTHX_ level, file, "REDO ===> ");
1112         if (cLOOPo->op_redoop)
1113             PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_redoop));
1114         else
1115             PerlIO_printf(file, "DONE\n");
1116         Perl_dump_indent(aTHX_ level, file, "NEXT ===> ");
1117         if (cLOOPo->op_nextop)
1118             PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_nextop));
1119         else
1120             PerlIO_printf(file, "DONE\n");
1121         Perl_dump_indent(aTHX_ level, file, "LAST ===> ");
1122         if (cLOOPo->op_lastop)
1123             PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_lastop));
1124         else
1125             PerlIO_printf(file, "DONE\n");
1126         break;
1127     case OP_COND_EXPR:
1128     case OP_RANGE:
1129     case OP_MAPWHILE:
1130     case OP_GREPWHILE:
1131     case OP_OR:
1132     case OP_AND:
1133         Perl_dump_indent(aTHX_ level, file, "OTHER ===> ");
1134         if (cLOGOPo->op_other)
1135             PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOGOPo->op_other));
1136         else
1137             PerlIO_printf(file, "DONE\n");
1138         break;
1139     case OP_PUSHRE:
1140     case OP_MATCH:
1141     case OP_QR:
1142     case OP_SUBST:
1143         do_pmop_dump(level, file, cPMOPo);
1144         break;
1145     case OP_LEAVE:
1146     case OP_LEAVEEVAL:
1147     case OP_LEAVESUB:
1148     case OP_LEAVESUBLV:
1149     case OP_LEAVEWRITE:
1150     case OP_SCOPE:
1151         if (o->op_private & OPpREFCOUNTED)
1152             Perl_dump_indent(aTHX_ level, file, "REFCNT = %"UVuf"\n", (UV)o->op_targ);
1153         break;
1154     default:
1155         break;
1156     }
1157     if (o->op_flags & OPf_KIDS) {
1158         OP *kid;
1159         for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
1160             do_op_dump(level, file, kid);
1161     }
1162     Perl_dump_indent(aTHX_ level-1, file, "}\n");
1163 }
1164
1165 void
1166 Perl_op_dump(pTHX_ const OP *o)
1167 {
1168     PERL_ARGS_ASSERT_OP_DUMP;
1169     do_op_dump(0, Perl_debug_log, o);
1170 }
1171
1172 void
1173 Perl_gv_dump(pTHX_ GV *gv)
1174 {
1175     SV *sv;
1176
1177     PERL_ARGS_ASSERT_GV_DUMP;
1178
1179     if (!gv) {
1180         PerlIO_printf(Perl_debug_log, "{}\n");
1181         return;
1182     }
1183     sv = sv_newmortal();
1184     PerlIO_printf(Perl_debug_log, "{\n");
1185     gv_fullname3(sv, gv, NULL);
1186     Perl_dump_indent(aTHX_ 1, Perl_debug_log, "GV_NAME = %s", SvPVX_const(sv));
1187     if (gv != GvEGV(gv)) {
1188         gv_efullname3(sv, GvEGV(gv), NULL);
1189         Perl_dump_indent(aTHX_ 1, Perl_debug_log, "-> %s", SvPVX_const(sv));
1190     }
1191     PerlIO_putc(Perl_debug_log, '\n');
1192     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "}\n");
1193 }
1194
1195
1196 /* map magic types to the symbolic names
1197  * (with the PERL_MAGIC_ prefixed stripped)
1198  */
1199
1200 static const struct { const char type; const char *name; } magic_names[] = {
1201 #include "mg_names.c"
1202         /* this null string terminates the list */
1203         { 0,                         NULL },
1204 };
1205
1206 void
1207 Perl_do_magic_dump(pTHX_ I32 level, PerlIO *file, const MAGIC *mg, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
1208 {
1209     PERL_ARGS_ASSERT_DO_MAGIC_DUMP;
1210
1211     for (; mg; mg = mg->mg_moremagic) {
1212         Perl_dump_indent(aTHX_ level, file,
1213                          "  MAGIC = 0x%"UVxf"\n", PTR2UV(mg));
1214         if (mg->mg_virtual) {
1215             const MGVTBL * const v = mg->mg_virtual;
1216             if (v >= PL_magic_vtables
1217                 && v < PL_magic_vtables + magic_vtable_max) {
1218                 const U32 i = v - PL_magic_vtables;
1219                 Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = &PL_vtbl_%s\n", PL_magic_vtable_names[i]);
1220             }
1221             else
1222                 Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = 0x%"UVxf"\n", PTR2UV(v));
1223         }
1224         else
1225             Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = 0\n");
1226
1227         if (mg->mg_private)
1228             Perl_dump_indent(aTHX_ level, file, "    MG_PRIVATE = %d\n", mg->mg_private);
1229
1230         {
1231             int n;
1232             const char *name = NULL;
1233             for (n = 0; magic_names[n].name; n++) {
1234                 if (mg->mg_type == magic_names[n].type) {
1235                     name = magic_names[n].name;
1236                     break;
1237                 }
1238             }
1239             if (name)
1240                 Perl_dump_indent(aTHX_ level, file,
1241                                 "    MG_TYPE = PERL_MAGIC_%s\n", name);
1242             else
1243                 Perl_dump_indent(aTHX_ level, file,
1244                                 "    MG_TYPE = UNKNOWN(\\%o)\n", mg->mg_type);
1245         }
1246
1247         if (mg->mg_flags) {
1248             Perl_dump_indent(aTHX_ level, file, "    MG_FLAGS = 0x%02X\n", mg->mg_flags);
1249             if (mg->mg_type == PERL_MAGIC_envelem &&
1250                 mg->mg_flags & MGf_TAINTEDDIR)
1251                 Perl_dump_indent(aTHX_ level, file, "      TAINTEDDIR\n");
1252             if (mg->mg_type == PERL_MAGIC_regex_global &&
1253                 mg->mg_flags & MGf_MINMATCH)
1254                 Perl_dump_indent(aTHX_ level, file, "      MINMATCH\n");
1255             if (mg->mg_flags & MGf_REFCOUNTED)
1256                 Perl_dump_indent(aTHX_ level, file, "      REFCOUNTED\n");
1257             if (mg->mg_flags & MGf_GSKIP)
1258                 Perl_dump_indent(aTHX_ level, file, "      GSKIP\n");
1259             if (mg->mg_flags & MGf_COPY)
1260                 Perl_dump_indent(aTHX_ level, file, "      COPY\n");
1261             if (mg->mg_flags & MGf_DUP)
1262                 Perl_dump_indent(aTHX_ level, file, "      DUP\n");
1263             if (mg->mg_flags & MGf_LOCAL)
1264                 Perl_dump_indent(aTHX_ level, file, "      LOCAL\n");
1265         }
1266         if (mg->mg_obj) {
1267             Perl_dump_indent(aTHX_ level, file, "    MG_OBJ = 0x%"UVxf"\n",
1268                 PTR2UV(mg->mg_obj));
1269             if (mg->mg_type == PERL_MAGIC_qr) {
1270                 REGEXP* const re = (REGEXP *)mg->mg_obj;
1271                 SV * const dsv = sv_newmortal();
1272                 const char * const s
1273                     = pv_pretty(dsv, RX_WRAPPED(re), RX_WRAPLEN(re),
1274                     60, NULL, NULL,
1275                     ( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_PRETTY_ELLIPSES |
1276                     (RX_UTF8(re) ? PERL_PV_ESCAPE_UNI : 0))
1277                 );
1278                 Perl_dump_indent(aTHX_ level+1, file, "    PAT = %s\n", s);
1279                 Perl_dump_indent(aTHX_ level+1, file, "    REFCNT = %"IVdf"\n",
1280                         (IV)RX_REFCNT(re));
1281             }
1282             if (mg->mg_flags & MGf_REFCOUNTED)
1283                 do_sv_dump(level+2, file, mg->mg_obj, nest+1, maxnest, dumpops, pvlim); /* MG is already +1 */
1284         }
1285         if (mg->mg_len)
1286             Perl_dump_indent(aTHX_ level, file, "    MG_LEN = %ld\n", (long)mg->mg_len);
1287         if (mg->mg_ptr) {
1288             Perl_dump_indent(aTHX_ level, file, "    MG_PTR = 0x%"UVxf, PTR2UV(mg->mg_ptr));
1289             if (mg->mg_len >= 0) {
1290                 if (mg->mg_type != PERL_MAGIC_utf8) {
1291                     SV * const sv = newSVpvs("");
1292                     PerlIO_printf(file, " %s", pv_display(sv, mg->mg_ptr, mg->mg_len, 0, pvlim));
1293                     SvREFCNT_dec_NN(sv);
1294                 }
1295             }
1296             else if (mg->mg_len == HEf_SVKEY) {
1297                 PerlIO_puts(file, " => HEf_SVKEY\n");
1298                 do_sv_dump(level+2, file, MUTABLE_SV(((mg)->mg_ptr)), nest+1,
1299                            maxnest, dumpops, pvlim); /* MG is already +1 */
1300                 continue;
1301             }
1302             else if (mg->mg_len == -1 && mg->mg_type == PERL_MAGIC_utf8);
1303             else
1304                 PerlIO_puts(
1305                   file,
1306                  " ???? - " __FILE__
1307                  " does not know how to handle this MG_LEN"
1308                 );
1309             PerlIO_putc(file, '\n');
1310         }
1311         if (mg->mg_type == PERL_MAGIC_utf8) {
1312             const STRLEN * const cache = (STRLEN *) mg->mg_ptr;
1313             if (cache) {
1314                 IV i;
1315                 for (i = 0; i < PERL_MAGIC_UTF8_CACHESIZE; i++)
1316                     Perl_dump_indent(aTHX_ level, file,
1317                                      "      %2"IVdf": %"UVuf" -> %"UVuf"\n",
1318                                      i,
1319                                      (UV)cache[i * 2],
1320                                      (UV)cache[i * 2 + 1]);
1321             }
1322         }
1323     }
1324 }
1325
1326 void
1327 Perl_magic_dump(pTHX_ const MAGIC *mg)
1328 {
1329     do_magic_dump(0, Perl_debug_log, mg, 0, 0, FALSE, 0);
1330 }
1331
1332 void
1333 Perl_do_hv_dump(pTHX_ I32 level, PerlIO *file, const char *name, HV *sv)
1334 {
1335     const char *hvname;
1336
1337     PERL_ARGS_ASSERT_DO_HV_DUMP;
1338
1339     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
1340     if (sv && (hvname = HvNAME_get(sv)))
1341     {
1342         /* we have to use pv_display and HvNAMELEN_get() so that we display the real package
1343            name which quite legally could contain insane things like tabs, newlines, nulls or
1344            other scary crap - this should produce sane results - except maybe for unicode package
1345            names - but we will wait for someone to file a bug on that - demerphq */
1346         SV * const tmpsv = newSVpvs("");
1347         PerlIO_printf(file, "\t%s\n", pv_display(tmpsv, hvname, HvNAMELEN_get(sv), 0, 1024));
1348     }
1349     else
1350         PerlIO_putc(file, '\n');
1351 }
1352
1353 void
1354 Perl_do_gv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
1355 {
1356     PERL_ARGS_ASSERT_DO_GV_DUMP;
1357
1358     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
1359     if (sv && GvNAME(sv))
1360         PerlIO_printf(file, "\t\"%s\"\n", GvNAME(sv));
1361     else
1362         PerlIO_putc(file, '\n');
1363 }
1364
1365 void
1366 Perl_do_gvgv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
1367 {
1368     PERL_ARGS_ASSERT_DO_GVGV_DUMP;
1369
1370     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
1371     if (sv && GvNAME(sv)) {
1372         const char *hvname;
1373         PerlIO_printf(file, "\t\"");
1374         if (GvSTASH(sv) && (hvname = HvNAME_get(GvSTASH(sv))))
1375             PerlIO_printf(file, "%s\" :: \"", hvname);
1376         PerlIO_printf(file, "%s\"\n", GvNAME(sv));
1377     }
1378     else
1379         PerlIO_putc(file, '\n');
1380 }
1381
1382 const struct flag_to_name first_sv_flags_names[] = {
1383     {SVs_TEMP, "TEMP,"},
1384     {SVs_OBJECT, "OBJECT,"},
1385     {SVs_GMG, "GMG,"},
1386     {SVs_SMG, "SMG,"},
1387     {SVs_RMG, "RMG,"},
1388     {SVf_IOK, "IOK,"},
1389     {SVf_NOK, "NOK,"},
1390     {SVf_POK, "POK,"}
1391 };
1392
1393 const struct flag_to_name second_sv_flags_names[] = {
1394     {SVf_OOK, "OOK,"},
1395     {SVf_FAKE, "FAKE,"},
1396     {SVf_READONLY, "READONLY,"},
1397     {SVf_IsCOW, "IsCOW,"},
1398     {SVf_BREAK, "BREAK,"},
1399     {SVf_AMAGIC, "OVERLOAD,"},
1400     {SVp_IOK, "pIOK,"},
1401     {SVp_NOK, "pNOK,"},
1402     {SVp_POK, "pPOK,"}
1403 };
1404
1405 const struct flag_to_name cv_flags_names[] = {
1406     {CVf_ANON, "ANON,"},
1407     {CVf_UNIQUE, "UNIQUE,"},
1408     {CVf_CLONE, "CLONE,"},
1409     {CVf_CLONED, "CLONED,"},
1410     {CVf_CONST, "CONST,"},
1411     {CVf_NODEBUG, "NODEBUG,"},
1412     {CVf_LVALUE, "LVALUE,"},
1413     {CVf_METHOD, "METHOD,"},
1414     {CVf_WEAKOUTSIDE, "WEAKOUTSIDE,"},
1415     {CVf_CVGV_RC, "CVGV_RC,"},
1416     {CVf_DYNFILE, "DYNFILE,"},
1417     {CVf_AUTOLOAD, "AUTOLOAD,"},
1418     {CVf_HASEVAL, "HASEVAL"},
1419     {CVf_SLABBED, "SLABBED,"},
1420     {CVf_ISXSUB, "ISXSUB,"}
1421 };
1422
1423 const struct flag_to_name hv_flags_names[] = {
1424     {SVphv_SHAREKEYS, "SHAREKEYS,"},
1425     {SVphv_LAZYDEL, "LAZYDEL,"},
1426     {SVphv_HASKFLAGS, "HASKFLAGS,"},
1427     {SVphv_CLONEABLE, "CLONEABLE,"}
1428 };
1429
1430 const struct flag_to_name gp_flags_names[] = {
1431     {GVf_INTRO, "INTRO,"},
1432     {GVf_MULTI, "MULTI,"},
1433     {GVf_ASSUMECV, "ASSUMECV,"},
1434     {GVf_IN_PAD, "IN_PAD,"}
1435 };
1436
1437 const struct flag_to_name gp_flags_imported_names[] = {
1438     {GVf_IMPORTED_SV, " SV"},
1439     {GVf_IMPORTED_AV, " AV"},
1440     {GVf_IMPORTED_HV, " HV"},
1441     {GVf_IMPORTED_CV, " CV"},
1442 };
1443
1444 const struct flag_to_name regexp_flags_names[] = {
1445     {RXf_PMf_MULTILINE,   "PMf_MULTILINE,"},
1446     {RXf_PMf_SINGLELINE,  "PMf_SINGLELINE,"},
1447     {RXf_PMf_FOLD,        "PMf_FOLD,"},
1448     {RXf_PMf_EXTENDED,    "PMf_EXTENDED,"},
1449     {RXf_PMf_KEEPCOPY,    "PMf_KEEPCOPY,"},
1450     {RXf_ANCH_BOL,        "ANCH_BOL,"},
1451     {RXf_ANCH_MBOL,       "ANCH_MBOL,"},
1452     {RXf_ANCH_SBOL,       "ANCH_SBOL,"},
1453     {RXf_ANCH_GPOS,       "ANCH_GPOS,"},
1454     {RXf_GPOS_SEEN,       "GPOS_SEEN,"},
1455     {RXf_GPOS_FLOAT,      "GPOS_FLOAT,"},
1456     {RXf_NO_INPLACE_SUBST, "NO_INPLACE_SUBST,"},
1457     {RXf_EVAL_SEEN,       "EVAL_SEEN,"},
1458     {RXf_CANY_SEEN,       "CANY_SEEN,"},
1459     {RXf_NOSCAN,          "NOSCAN,"},
1460     {RXf_CHECK_ALL,       "CHECK_ALL,"},
1461     {RXf_MATCH_UTF8,      "MATCH_UTF8,"},
1462     {RXf_USE_INTUIT_NOML, "USE_INTUIT_NOML,"},
1463     {RXf_USE_INTUIT_ML,   "USE_INTUIT_ML,"},
1464     {RXf_INTUIT_TAIL,     "INTUIT_TAIL,"},
1465     {RXf_SPLIT,           "SPLIT,"},
1466     {RXf_COPY_DONE,       "COPY_DONE,"},
1467     {RXf_TAINTED_SEEN,    "TAINTED_SEEN,"},
1468     {RXf_TAINTED,         "TAINTED,"},
1469     {RXf_START_ONLY,      "START_ONLY,"},
1470     {RXf_SKIPWHITE,       "SKIPWHITE,"},
1471     {RXf_WHITE,           "WHITE,"},
1472     {RXf_NULL,            "NULL,"},
1473 };
1474
1475 void
1476 Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
1477 {
1478     dVAR;
1479     SV *d;
1480     const char *s;
1481     U32 flags;
1482     U32 type;
1483
1484     PERL_ARGS_ASSERT_DO_SV_DUMP;
1485
1486     if (!sv) {
1487         Perl_dump_indent(aTHX_ level, file, "SV = 0\n");
1488         return;
1489     }
1490
1491     flags = SvFLAGS(sv);
1492     type = SvTYPE(sv);
1493
1494     /* process general SV flags */
1495
1496     d = Perl_newSVpvf(aTHX_
1497                    "(0x%"UVxf") at 0x%"UVxf"\n%*s  REFCNT = %"IVdf"\n%*s  FLAGS = (",
1498                    PTR2UV(SvANY(sv)), PTR2UV(sv),
1499                    (int)(PL_dumpindent*level), "", (IV)SvREFCNT(sv),
1500                    (int)(PL_dumpindent*level), "");
1501
1502     if (!((flags & SVpad_NAME) == SVpad_NAME
1503           && (type == SVt_PVMG || type == SVt_PVNV))) {
1504         if ((flags & SVs_PADMY) && (flags & SVs_PADSTALE))
1505             sv_catpv(d, "PADSTALE,");
1506     }
1507     if (!((flags & SVpad_NAME) == SVpad_NAME && type == SVt_PVMG)) {
1508         if (!(flags & SVs_PADMY) && (flags & SVs_PADTMP))
1509             sv_catpv(d, "PADTMP,");
1510         if (flags & SVs_PADMY)  sv_catpv(d, "PADMY,");
1511     }
1512     append_flags(d, flags, first_sv_flags_names);
1513     if (flags & SVf_ROK)  {     
1514                                 sv_catpv(d, "ROK,");
1515         if (SvWEAKREF(sv))      sv_catpv(d, "WEAKREF,");
1516     }
1517     append_flags(d, flags, second_sv_flags_names);
1518     if (flags & SVp_SCREAM && type != SVt_PVHV && !isGV_with_GP(sv)
1519                            && type != SVt_PVAV) {
1520         if (SvPCS_IMPORTED(sv))
1521                                 sv_catpv(d, "PCS_IMPORTED,");
1522         else
1523                                 sv_catpv(d, "SCREAM,");
1524     }
1525
1526     /* process type-specific SV flags */
1527
1528     switch (type) {
1529     case SVt_PVCV:
1530     case SVt_PVFM:
1531         append_flags(d, CvFLAGS(sv), cv_flags_names);
1532         break;
1533     case SVt_PVHV:
1534         append_flags(d, flags, hv_flags_names);
1535         break;
1536     case SVt_PVGV:
1537     case SVt_PVLV:
1538         if (isGV_with_GP(sv)) {
1539             append_flags(d, GvFLAGS(sv), gp_flags_names);
1540         }
1541         if (isGV_with_GP(sv) && GvIMPORTED(sv)) {
1542             sv_catpv(d, "IMPORT");
1543             if (GvIMPORTED(sv) == GVf_IMPORTED)
1544                 sv_catpv(d, "ALL,");
1545             else {
1546                 sv_catpv(d, "(");
1547                 append_flags(d, GvFLAGS(sv), gp_flags_imported_names);
1548                 sv_catpv(d, " ),");
1549             }
1550         }
1551         /* FALL THROUGH */
1552     default:
1553     evaled_or_uv:
1554         if (SvEVALED(sv))       sv_catpv(d, "EVALED,");
1555         if (SvIsUV(sv) && !(flags & SVf_ROK))   sv_catpv(d, "IsUV,");
1556         break;
1557     case SVt_PVMG:
1558         if (SvTAIL(sv))         sv_catpv(d, "TAIL,");
1559         if (SvVALID(sv))        sv_catpv(d, "VALID,");
1560         if (SvPAD_TYPED(sv))    sv_catpv(d, "TYPED,");
1561         if (SvPAD_OUR(sv))      sv_catpv(d, "OUR,");
1562         /* FALL THROUGH */
1563     case SVt_PVNV:
1564         if (SvPAD_STATE(sv))    sv_catpv(d, "STATE,");
1565         goto evaled_or_uv;
1566     case SVt_PVAV:
1567         if (AvPAD_NAMELIST(sv)) sv_catpvs(d, "NAMELIST,");
1568         break;
1569     }
1570     /* SVphv_SHAREKEYS is also 0x20000000 */
1571     if ((type != SVt_PVHV) && SvUTF8(sv))
1572         sv_catpv(d, "UTF8");
1573
1574     if (*(SvEND(d) - 1) == ',') {
1575         SvCUR_set(d, SvCUR(d) - 1);
1576         SvPVX(d)[SvCUR(d)] = '\0';
1577     }
1578     sv_catpv(d, ")");
1579     s = SvPVX_const(d);
1580
1581     /* dump initial SV details */
1582
1583 #ifdef DEBUG_LEAKING_SCALARS
1584     Perl_dump_indent(aTHX_ level, file,
1585         "ALLOCATED at %s:%d %s %s (parent 0x%"UVxf"); serial %"UVuf"\n",
1586         sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1587         sv->sv_debug_line,
1588         sv->sv_debug_inpad ? "for" : "by",
1589         sv->sv_debug_optype ? PL_op_name[sv->sv_debug_optype]: "(none)",
1590         PTR2UV(sv->sv_debug_parent),
1591         sv->sv_debug_serial
1592     );
1593 #endif
1594     Perl_dump_indent(aTHX_ level, file, "SV = ");
1595
1596     /* Dump SV type */
1597
1598     if (type < SVt_LAST) {
1599         PerlIO_printf(file, "%s%s\n", svtypenames[type], s);
1600
1601         if (type ==  SVt_NULL) {
1602             SvREFCNT_dec_NN(d);
1603             return;
1604         }
1605     } else {
1606         PerlIO_printf(file, "UNKNOWN(0x%"UVxf") %s\n", (UV)type, s);
1607         SvREFCNT_dec_NN(d);
1608         return;
1609     }
1610
1611     /* Dump general SV fields */
1612
1613     if ((type >= SVt_PVIV && type != SVt_PVAV && type != SVt_PVHV
1614          && type != SVt_PVCV && type != SVt_PVFM && type != SVt_PVIO
1615          && type != SVt_REGEXP && !isGV_with_GP(sv) && !SvVALID(sv))
1616         || (type == SVt_IV && !SvROK(sv))) {
1617         if (SvIsUV(sv)
1618 #ifdef PERL_OLD_COPY_ON_WRITE
1619                        || SvIsCOW(sv)
1620 #endif
1621                                      )
1622             Perl_dump_indent(aTHX_ level, file, "  UV = %"UVuf, (UV)SvUVX(sv));
1623         else
1624             Perl_dump_indent(aTHX_ level, file, "  IV = %"IVdf, (IV)SvIVX(sv));
1625 #ifdef PERL_OLD_COPY_ON_WRITE
1626         if (SvIsCOW_shared_hash(sv))
1627             PerlIO_printf(file, "  (HASH)");
1628         else if (SvIsCOW_normal(sv))
1629             PerlIO_printf(file, "  (COW from 0x%"UVxf")", (UV)SvUVX(sv));
1630 #endif
1631         PerlIO_putc(file, '\n');
1632     }
1633
1634     if ((type == SVt_PVNV || type == SVt_PVMG)
1635         && (SvFLAGS(sv) & SVpad_NAME) == SVpad_NAME) {
1636         Perl_dump_indent(aTHX_ level, file, "  COP_LOW = %"UVuf"\n",
1637                          (UV) COP_SEQ_RANGE_LOW(sv));
1638         Perl_dump_indent(aTHX_ level, file, "  COP_HIGH = %"UVuf"\n",
1639                          (UV) COP_SEQ_RANGE_HIGH(sv));
1640     } else if ((type >= SVt_PVNV && type != SVt_PVAV && type != SVt_PVHV
1641                 && type != SVt_PVCV && type != SVt_PVFM  && type != SVt_REGEXP
1642                 && type != SVt_PVIO && !isGV_with_GP(sv) && !SvVALID(sv))
1643                || type == SVt_NV) {
1644         STORE_NUMERIC_LOCAL_SET_STANDARD();
1645         /* %Vg doesn't work? --jhi */
1646 #ifdef USE_LONG_DOUBLE
1647         Perl_dump_indent(aTHX_ level, file, "  NV = %.*" PERL_PRIgldbl "\n", LDBL_DIG, SvNVX(sv));
1648 #else
1649         Perl_dump_indent(aTHX_ level, file, "  NV = %.*g\n", DBL_DIG, SvNVX(sv));
1650 #endif
1651         RESTORE_NUMERIC_LOCAL();
1652     }
1653
1654     if (SvROK(sv)) {
1655         Perl_dump_indent(aTHX_ level, file, "  RV = 0x%"UVxf"\n", PTR2UV(SvRV(sv)));
1656         if (nest < maxnest)
1657             do_sv_dump(level+1, file, SvRV(sv), nest+1, maxnest, dumpops, pvlim);
1658     }
1659
1660     if (type < SVt_PV) {
1661         SvREFCNT_dec_NN(d);
1662         return;
1663     }
1664
1665     if ((type <= SVt_PVLV && !isGV_with_GP(sv))
1666      || (type == SVt_PVIO && IoFLAGS(sv) & IOf_FAKE_DIRP)) {
1667         const bool re = isREGEXP(sv);
1668         const char * const ptr =
1669             re ? RX_WRAPPED((REGEXP*)sv) : SvPVX_const(sv);
1670         if (ptr) {
1671             STRLEN delta;
1672             if (SvOOK(sv)) {
1673                 SvOOK_offset(sv, delta);
1674                 Perl_dump_indent(aTHX_ level, file,"  OFFSET = %"UVuf"\n",
1675                                  (UV) delta);
1676             } else {
1677                 delta = 0;
1678             }
1679             Perl_dump_indent(aTHX_ level, file,"  PV = 0x%"UVxf" ", PTR2UV(ptr));
1680             if (SvOOK(sv)) {
1681                 PerlIO_printf(file, "( %s . ) ",
1682                               pv_display(d, ptr - delta, delta, 0,
1683                                          pvlim));
1684             }
1685             if (type == SVt_INVLIST) {
1686                 PerlIO_printf(file, "\n");
1687                 /* 4 blanks indents 2 beyond the PV, etc */
1688                 _invlist_dump(file, level, "    ", sv);
1689             }
1690             else {
1691             PerlIO_printf(file, "%s", pv_display(d, ptr, SvCUR(sv),
1692                                                  re ? 0 : SvLEN(sv),
1693                                                  pvlim));
1694             if (SvUTF8(sv)) /* the 6?  \x{....} */
1695                 PerlIO_printf(file, " [UTF8 \"%s\"]", sv_uni_display(d, sv, 6 * SvCUR(sv), UNI_DISPLAY_QQ));
1696             PerlIO_printf(file, "\n");
1697             }
1698             Perl_dump_indent(aTHX_ level, file, "  CUR = %"IVdf"\n", (IV)SvCUR(sv));
1699             if (!re)
1700                 Perl_dump_indent(aTHX_ level, file, "  LEN = %"IVdf"\n",
1701                                        (IV)SvLEN(sv));
1702 #ifdef PERL_NEW_COPY_ON_WRITE
1703             if (SvIsCOW(sv) && SvLEN(sv))
1704                 Perl_dump_indent(aTHX_ level, file, "  COW_REFCNT = %d\n",
1705                                        CowREFCNT(sv));
1706 #endif
1707         }
1708         else
1709             Perl_dump_indent(aTHX_ level, file, "  PV = 0\n");
1710     }
1711
1712     if (type >= SVt_PVMG) {
1713         if (type == SVt_PVMG && SvPAD_OUR(sv)) {
1714             HV * const ost = SvOURSTASH(sv);
1715             if (ost)
1716                 do_hv_dump(level, file, "  OURSTASH", ost);
1717         } else if (SvTYPE(sv) == SVt_PVAV && AvPAD_NAMELIST(sv)) {
1718             Perl_dump_indent(aTHX_ level, file, "  MAXNAMED = %"UVuf"\n",
1719                                    (UV)PadnamelistMAXNAMED(sv));
1720         } else {
1721             if (SvMAGIC(sv))
1722                 do_magic_dump(level, file, SvMAGIC(sv), nest+1, maxnest, dumpops, pvlim);
1723         }
1724         if (SvSTASH(sv))
1725             do_hv_dump(level, file, "  STASH", SvSTASH(sv));
1726
1727         if ((type == SVt_PVMG || type == SVt_PVLV) && SvVALID(sv)) {
1728             Perl_dump_indent(aTHX_ level, file, "  USEFUL = %"IVdf"\n", (IV)BmUSEFUL(sv));
1729         }
1730     }
1731
1732     /* Dump type-specific SV fields */
1733
1734     switch (type) {
1735     case SVt_PVAV:
1736         Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(AvARRAY(sv)));
1737         if (AvARRAY(sv) != AvALLOC(sv)) {
1738             PerlIO_printf(file, " (offset=%"IVdf")\n", (IV)(AvARRAY(sv) - AvALLOC(sv)));
1739             Perl_dump_indent(aTHX_ level, file, "  ALLOC = 0x%"UVxf"\n", PTR2UV(AvALLOC(sv)));
1740         }
1741         else
1742             PerlIO_putc(file, '\n');
1743         Perl_dump_indent(aTHX_ level, file, "  FILL = %"IVdf"\n", (IV)AvFILLp(sv));
1744         Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)AvMAX(sv));
1745         /* arylen is stored in magic, and padnamelists use SvMAGIC for
1746            something else. */
1747         if (!AvPAD_NAMELIST(sv))
1748             Perl_dump_indent(aTHX_ level, file, "  ARYLEN = 0x%"UVxf"\n",
1749                                    SvMAGIC(sv) ? PTR2UV(AvARYLEN(sv)) : 0);
1750         sv_setpvs(d, "");
1751         if (AvREAL(sv)) sv_catpv(d, ",REAL");
1752         if (AvREIFY(sv))        sv_catpv(d, ",REIFY");
1753         Perl_dump_indent(aTHX_ level, file, "  FLAGS = (%s)\n",
1754                          SvCUR(d) ? SvPVX_const(d) + 1 : "");
1755         if (nest < maxnest && av_len(MUTABLE_AV(sv)) >= 0) {
1756             int count;
1757             for (count = 0; count <=  av_len(MUTABLE_AV(sv)) && count < maxnest; count++) {
1758                 SV** const elt = av_fetch(MUTABLE_AV(sv),count,0);
1759
1760                 Perl_dump_indent(aTHX_ level + 1, file, "Elt No. %"IVdf"\n", (IV)count);
1761                 if (elt)
1762                     do_sv_dump(level+1, file, *elt, nest+1, maxnest, dumpops, pvlim);
1763             }
1764         }
1765         break;
1766     case SVt_PVHV:
1767         Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(HvARRAY(sv)));
1768         if (HvARRAY(sv) && HvUSEDKEYS(sv)) {
1769             /* Show distribution of HEs in the ARRAY */
1770             int freq[200];
1771 #define FREQ_MAX ((int)(sizeof freq / sizeof freq[0] - 1))
1772             int i;
1773             int max = 0;
1774             U32 pow2 = 2, keys = HvUSEDKEYS(sv);
1775             NV theoret, sum = 0;
1776
1777             PerlIO_printf(file, "  (");
1778             Zero(freq, FREQ_MAX + 1, int);
1779             for (i = 0; (STRLEN)i <= HvMAX(sv); i++) {
1780                 HE* h;
1781                 int count = 0;
1782                 for (h = HvARRAY(sv)[i]; h; h = HeNEXT(h))
1783                     count++;
1784                 if (count > FREQ_MAX)
1785                     count = FREQ_MAX;
1786                 freq[count]++;
1787                 if (max < count)
1788                     max = count;
1789             }
1790             for (i = 0; i <= max; i++) {
1791                 if (freq[i]) {
1792                     PerlIO_printf(file, "%d%s:%d", i,
1793                                   (i == FREQ_MAX) ? "+" : "",
1794                                   freq[i]);
1795                     if (i != max)
1796                         PerlIO_printf(file, ", ");
1797                 }
1798             }
1799             PerlIO_putc(file, ')');
1800             /* The "quality" of a hash is defined as the total number of
1801                comparisons needed to access every element once, relative
1802                to the expected number needed for a random hash.
1803
1804                The total number of comparisons is equal to the sum of
1805                the squares of the number of entries in each bucket.
1806                For a random hash of n keys into k buckets, the expected
1807                value is
1808                                 n + n(n-1)/2k
1809             */
1810
1811             for (i = max; i > 0; i--) { /* Precision: count down. */
1812                 sum += freq[i] * i * i;
1813             }
1814             while ((keys = keys >> 1))
1815                 pow2 = pow2 << 1;
1816             theoret = HvUSEDKEYS(sv);
1817             theoret += theoret * (theoret-1)/pow2;
1818             PerlIO_putc(file, '\n');
1819             Perl_dump_indent(aTHX_ level, file, "  hash quality = %.1"NVff"%%", theoret/sum*100);
1820         }
1821         PerlIO_putc(file, '\n');
1822         Perl_dump_indent(aTHX_ level, file, "  KEYS = %"IVdf"\n", (IV)HvUSEDKEYS(sv));
1823         {
1824             STRLEN count = 0;
1825             HE **ents = HvARRAY(sv);
1826
1827             if (ents) {
1828                 HE *const *const last = ents + HvMAX(sv);
1829                 count = last + 1 - ents;
1830                 
1831                 do {
1832                     if (!*ents)
1833                         --count;
1834                 } while (++ents <= last);
1835             }
1836
1837             if (SvOOK(sv)) {
1838                 struct xpvhv_aux *const aux = HvAUX(sv);
1839                 Perl_dump_indent(aTHX_ level, file, "  FILL = %"UVuf
1840                                  " (cached = %"UVuf")\n",
1841                                  (UV)count, (UV)aux->xhv_fill_lazy);
1842             } else {
1843                 Perl_dump_indent(aTHX_ level, file, "  FILL = %"UVuf"\n",
1844                                  (UV)count);
1845             }
1846         }
1847         Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)HvMAX(sv));
1848         if (SvOOK(sv)) {
1849             Perl_dump_indent(aTHX_ level, file, "  RITER = %"IVdf"\n", (IV)HvRITER_get(sv));
1850             Perl_dump_indent(aTHX_ level, file, "  EITER = 0x%"UVxf"\n", PTR2UV(HvEITER_get(sv)));
1851 #ifdef PERL_HASH_RANDOMIZE_KEYS
1852             Perl_dump_indent(aTHX_ level, file, "  RAND = 0x%"UVxf, (UV)HvRAND_get(sv));
1853             if (HvRAND_get(sv) != HvLASTRAND_get(sv) && HvRITER_get(sv) != -1 ) {
1854                 PerlIO_printf(file, " (LAST = 0x%"UVxf")", (UV)HvLASTRAND_get(sv));
1855             }
1856 #endif
1857             PerlIO_putc(file, '\n');
1858         }
1859         {
1860             MAGIC * const mg = mg_find(sv, PERL_MAGIC_symtab);
1861             if (mg && mg->mg_obj) {
1862                 Perl_dump_indent(aTHX_ level, file, "  PMROOT = 0x%"UVxf"\n", PTR2UV(mg->mg_obj));
1863             }
1864         }
1865         {
1866             const char * const hvname = HvNAME_get(sv);
1867             if (hvname)
1868                 Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", hvname);
1869         }
1870         if (SvOOK(sv)) {
1871             AV * const backrefs
1872                 = *Perl_hv_backreferences_p(aTHX_ MUTABLE_HV(sv));
1873             struct mro_meta * const meta = HvAUX(sv)->xhv_mro_meta;
1874             if (HvAUX(sv)->xhv_name_count)
1875                 Perl_dump_indent(aTHX_
1876                  level, file, "  NAMECOUNT = %"IVdf"\n",
1877                  (IV)HvAUX(sv)->xhv_name_count
1878                 );
1879             if (HvAUX(sv)->xhv_name_u.xhvnameu_name && HvENAME_HEK_NN(sv)) {
1880                 const I32 count = HvAUX(sv)->xhv_name_count;
1881                 if (count) {
1882                     SV * const names = newSVpvs_flags("", SVs_TEMP);
1883                     /* The starting point is the first element if count is
1884                        positive and the second element if count is negative. */
1885                     HEK *const *hekp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1886                         + (count < 0 ? 1 : 0);
1887                     HEK *const *const endp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1888                         + (count < 0 ? -count : count);
1889                     while (hekp < endp) {
1890                         if (*hekp) {
1891                             sv_catpvs(names, ", \"");
1892                             sv_catpvn(names, HEK_KEY(*hekp), HEK_LEN(*hekp));
1893                             sv_catpvs(names, "\"");
1894                         } else {
1895                             /* This should never happen. */
1896                             sv_catpvs(names, ", (null)");
1897                         }
1898                         ++hekp;
1899                     }
1900                     Perl_dump_indent(aTHX_
1901                      level, file, "  ENAME = %s\n", SvPV_nolen(names)+2
1902                     );
1903                 }
1904                 else
1905                     Perl_dump_indent(aTHX_
1906                      level, file, "  ENAME = \"%s\"\n", HvENAME_get(sv)
1907                     );
1908             }
1909             if (backrefs) {
1910                 Perl_dump_indent(aTHX_ level, file, "  BACKREFS = 0x%"UVxf"\n",
1911                                  PTR2UV(backrefs));
1912                 do_sv_dump(level+1, file, MUTABLE_SV(backrefs), nest+1, maxnest,
1913                            dumpops, pvlim);
1914             }
1915             if (meta) {
1916                 /* FIXME - mro_algs kflags can signal a UTF-8 name.  */
1917                 Perl_dump_indent(aTHX_ level, file, "  MRO_WHICH = \"%.*s\" (0x%"UVxf")\n",
1918                                  (int)meta->mro_which->length,
1919                                  meta->mro_which->name,
1920                                  PTR2UV(meta->mro_which));
1921                 Perl_dump_indent(aTHX_ level, file, "  CACHE_GEN = 0x%"UVxf"\n",
1922                                  (UV)meta->cache_gen);
1923                 Perl_dump_indent(aTHX_ level, file, "  PKG_GEN = 0x%"UVxf"\n",
1924                                  (UV)meta->pkg_gen);
1925                 if (meta->mro_linear_all) {
1926                     Perl_dump_indent(aTHX_ level, file, "  MRO_LINEAR_ALL = 0x%"UVxf"\n",
1927                                  PTR2UV(meta->mro_linear_all));
1928                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_all), nest+1, maxnest,
1929                            dumpops, pvlim);
1930                 }
1931                 if (meta->mro_linear_current) {
1932                     Perl_dump_indent(aTHX_ level, file, "  MRO_LINEAR_CURRENT = 0x%"UVxf"\n",
1933                                  PTR2UV(meta->mro_linear_current));
1934                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_current), nest+1, maxnest,
1935                            dumpops, pvlim);
1936                 }
1937                 if (meta->mro_nextmethod) {
1938                     Perl_dump_indent(aTHX_ level, file, "  MRO_NEXTMETHOD = 0x%"UVxf"\n",
1939                                  PTR2UV(meta->mro_nextmethod));
1940                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_nextmethod), nest+1, maxnest,
1941                            dumpops, pvlim);
1942                 }
1943                 if (meta->isa) {
1944                     Perl_dump_indent(aTHX_ level, file, "  ISA = 0x%"UVxf"\n",
1945                                  PTR2UV(meta->isa));
1946                 do_sv_dump(level+1, file, MUTABLE_SV(meta->isa), nest+1, maxnest,
1947                            dumpops, pvlim);
1948                 }
1949             }
1950         }
1951         if (nest < maxnest) {
1952             HV * const hv = MUTABLE_HV(sv);
1953             STRLEN i;
1954             HE *he;
1955
1956             if (HvARRAY(hv)) {
1957                 int count = maxnest - nest;
1958                 for (i=0; i <= HvMAX(hv); i++) {
1959                     for (he = HvARRAY(hv)[i]; he; he = HeNEXT(he)) {
1960                         U32 hash;
1961                         SV * keysv;
1962                         const char * keypv;
1963                         SV * elt;
1964                         STRLEN len;
1965
1966                         if (count-- <= 0) goto DONEHV;
1967
1968                         hash = HeHASH(he);
1969                         keysv = hv_iterkeysv(he);
1970                         keypv = SvPV_const(keysv, len);
1971                         elt = HeVAL(he);
1972
1973                         Perl_dump_indent(aTHX_ level+1, file, "Elt %s ", pv_display(d, keypv, len, 0, pvlim));
1974                         if (SvUTF8(keysv))
1975                             PerlIO_printf(file, "[UTF8 \"%s\"] ", sv_uni_display(d, keysv, 6 * SvCUR(keysv), UNI_DISPLAY_QQ));
1976                         if (HvEITER_get(hv) == he)
1977                             PerlIO_printf(file, "[CURRENT] ");
1978                         PerlIO_printf(file, "HASH = 0x%"UVxf"\n", (UV) hash);
1979                         do_sv_dump(level+1, file, elt, nest+1, maxnest, dumpops, pvlim);
1980                     }
1981                 }
1982               DONEHV:;
1983             }
1984         }
1985         break;
1986
1987     case SVt_PVCV:
1988         if (CvAUTOLOAD(sv)) {
1989             STRLEN len;
1990             const char *const name =  SvPV_const(sv, len);
1991             Perl_dump_indent(aTHX_ level, file, "  AUTOLOAD = \"%.*s\"\n",
1992                              (int) len, name);
1993         }
1994         if (SvPOK(sv)) {
1995             Perl_dump_indent(aTHX_ level, file, "  PROTOTYPE = \"%.*s\"\n",
1996                              (int) CvPROTOLEN(sv), CvPROTO(sv));
1997         }
1998         /* FALL THROUGH */
1999     case SVt_PVFM:
2000         do_hv_dump(level, file, "  COMP_STASH", CvSTASH(sv));
2001         if (!CvISXSUB(sv)) {
2002             if (CvSTART(sv)) {
2003                 Perl_dump_indent(aTHX_ level, file,
2004                                  "  START = 0x%"UVxf" ===> %"IVdf"\n",
2005                                  PTR2UV(CvSTART(sv)),
2006                                  (IV)sequence_num(CvSTART(sv)));
2007             }
2008             Perl_dump_indent(aTHX_ level, file, "  ROOT = 0x%"UVxf"\n",
2009                              PTR2UV(CvROOT(sv)));
2010             if (CvROOT(sv) && dumpops) {
2011                 do_op_dump(level+1, file, CvROOT(sv));
2012             }
2013         } else {
2014             SV * const constant = cv_const_sv((const CV *)sv);
2015
2016             Perl_dump_indent(aTHX_ level, file, "  XSUB = 0x%"UVxf"\n", PTR2UV(CvXSUB(sv)));
2017
2018             if (constant) {
2019                 Perl_dump_indent(aTHX_ level, file, "  XSUBANY = 0x%"UVxf
2020                                  " (CONST SV)\n",
2021                                  PTR2UV(CvXSUBANY(sv).any_ptr));
2022                 do_sv_dump(level+1, file, constant, nest+1, maxnest, dumpops,
2023                            pvlim);
2024             } else {
2025                 Perl_dump_indent(aTHX_ level, file, "  XSUBANY = %"IVdf"\n",
2026                                  (IV)CvXSUBANY(sv).any_i32);
2027             }
2028         }
2029         if (CvNAMED(sv))
2030             Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n",
2031                                    HEK_KEY(CvNAME_HEK((CV *)sv)));
2032         else do_gvgv_dump(level, file, "  GVGV::GV", CvGV(sv));
2033         Perl_dump_indent(aTHX_ level, file, "  FILE = \"%s\"\n", CvFILE(sv));
2034         Perl_dump_indent(aTHX_ level, file, "  DEPTH = %"IVdf"\n", (IV)CvDEPTH(sv));
2035         Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)CvFLAGS(sv));
2036         Perl_dump_indent(aTHX_ level, file, "  OUTSIDE_SEQ = %"UVuf"\n", (UV)CvOUTSIDE_SEQ(sv));
2037         Perl_dump_indent(aTHX_ level, file, "  PADLIST = 0x%"UVxf"\n", PTR2UV(CvPADLIST(sv)));
2038         if (nest < maxnest) {
2039             do_dump_pad(level+1, file, CvPADLIST(sv), 0);
2040         }
2041         {
2042             const CV * const outside = CvOUTSIDE(sv);
2043             Perl_dump_indent(aTHX_ level, file, "  OUTSIDE = 0x%"UVxf" (%s)\n",
2044                         PTR2UV(outside),
2045                         (!outside ? "null"
2046                          : CvANON(outside) ? "ANON"
2047                          : (outside == PL_main_cv) ? "MAIN"
2048                          : CvUNIQUE(outside) ? "UNIQUE"
2049                          : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED"));
2050         }
2051         if (nest < maxnest && (CvCLONE(sv) || CvCLONED(sv)))
2052             do_sv_dump(level+1, file, MUTABLE_SV(CvOUTSIDE(sv)), nest+1, maxnest, dumpops, pvlim);
2053         break;
2054
2055     case SVt_PVGV:
2056     case SVt_PVLV:
2057         if (type == SVt_PVLV) {
2058             Perl_dump_indent(aTHX_ level, file, "  TYPE = %c\n", LvTYPE(sv));
2059             Perl_dump_indent(aTHX_ level, file, "  TARGOFF = %"IVdf"\n", (IV)LvTARGOFF(sv));
2060             Perl_dump_indent(aTHX_ level, file, "  TARGLEN = %"IVdf"\n", (IV)LvTARGLEN(sv));
2061             Perl_dump_indent(aTHX_ level, file, "  TARG = 0x%"UVxf"\n", PTR2UV(LvTARG(sv)));
2062             Perl_dump_indent(aTHX_ level, file, "  FLAGS = %"IVdf"\n", (IV)LvFLAGS(sv));
2063             if (LvTYPE(sv) != 't' && LvTYPE(sv) != 'T')
2064                 do_sv_dump(level+1, file, LvTARG(sv), nest+1, maxnest,
2065                     dumpops, pvlim);
2066         }
2067         if (isREGEXP(sv)) goto dumpregexp;
2068         if (!isGV_with_GP(sv))
2069             break;
2070         Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", GvNAME(sv));
2071         Perl_dump_indent(aTHX_ level, file, "  NAMELEN = %"IVdf"\n", (IV)GvNAMELEN(sv));
2072         do_hv_dump (level, file, "  GvSTASH", GvSTASH(sv));
2073         Perl_dump_indent(aTHX_ level, file, "  GP = 0x%"UVxf"\n", PTR2UV(GvGP(sv)));
2074         if (!GvGP(sv))
2075             break;
2076         Perl_dump_indent(aTHX_ level, file, "    SV = 0x%"UVxf"\n", PTR2UV(GvSV(sv)));
2077         Perl_dump_indent(aTHX_ level, file, "    REFCNT = %"IVdf"\n", (IV)GvREFCNT(sv));
2078         Perl_dump_indent(aTHX_ level, file, "    IO = 0x%"UVxf"\n", PTR2UV(GvIOp(sv)));
2079         Perl_dump_indent(aTHX_ level, file, "    FORM = 0x%"UVxf"  \n", PTR2UV(GvFORM(sv)));
2080         Perl_dump_indent(aTHX_ level, file, "    AV = 0x%"UVxf"\n", PTR2UV(GvAV(sv)));
2081         Perl_dump_indent(aTHX_ level, file, "    HV = 0x%"UVxf"\n", PTR2UV(GvHV(sv)));
2082         Perl_dump_indent(aTHX_ level, file, "    CV = 0x%"UVxf"\n", PTR2UV(GvCV(sv)));
2083         Perl_dump_indent(aTHX_ level, file, "    CVGEN = 0x%"UVxf"\n", (UV)GvCVGEN(sv));
2084         Perl_dump_indent(aTHX_ level, file, "    LINE = %"IVdf"\n", (IV)GvLINE(sv));
2085         Perl_dump_indent(aTHX_ level, file, "    FILE = \"%s\"\n", GvFILE(sv));
2086         Perl_dump_indent(aTHX_ level, file, "    FLAGS = 0x%"UVxf"\n", (UV)GvFLAGS(sv));
2087         do_gv_dump (level, file, "    EGV", GvEGV(sv));
2088         break;
2089     case SVt_PVIO:
2090         Perl_dump_indent(aTHX_ level, file, "  IFP = 0x%"UVxf"\n", PTR2UV(IoIFP(sv)));
2091         Perl_dump_indent(aTHX_ level, file, "  OFP = 0x%"UVxf"\n", PTR2UV(IoOFP(sv)));
2092         Perl_dump_indent(aTHX_ level, file, "  DIRP = 0x%"UVxf"\n", PTR2UV(IoDIRP(sv)));
2093         Perl_dump_indent(aTHX_ level, file, "  LINES = %"IVdf"\n", (IV)IoLINES(sv));
2094         Perl_dump_indent(aTHX_ level, file, "  PAGE = %"IVdf"\n", (IV)IoPAGE(sv));
2095         Perl_dump_indent(aTHX_ level, file, "  PAGE_LEN = %"IVdf"\n", (IV)IoPAGE_LEN(sv));
2096         Perl_dump_indent(aTHX_ level, file, "  LINES_LEFT = %"IVdf"\n", (IV)IoLINES_LEFT(sv));
2097         if (IoTOP_NAME(sv))
2098             Perl_dump_indent(aTHX_ level, file, "  TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
2099         if (!IoTOP_GV(sv) || SvTYPE(IoTOP_GV(sv)) == SVt_PVGV)
2100             do_gv_dump (level, file, "  TOP_GV", IoTOP_GV(sv));
2101         else {
2102             Perl_dump_indent(aTHX_ level, file, "  TOP_GV = 0x%"UVxf"\n",
2103                              PTR2UV(IoTOP_GV(sv)));
2104             do_sv_dump (level+1, file, MUTABLE_SV(IoTOP_GV(sv)), nest+1,
2105                         maxnest, dumpops, pvlim);
2106         }
2107         /* Source filters hide things that are not GVs in these three, so let's
2108            be careful out there.  */
2109         if (IoFMT_NAME(sv))
2110             Perl_dump_indent(aTHX_ level, file, "  FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
2111         if (!IoFMT_GV(sv) || SvTYPE(IoFMT_GV(sv)) == SVt_PVGV)
2112             do_gv_dump (level, file, "  FMT_GV", IoFMT_GV(sv));
2113         else {
2114             Perl_dump_indent(aTHX_ level, file, "  FMT_GV = 0x%"UVxf"\n",
2115                              PTR2UV(IoFMT_GV(sv)));
2116             do_sv_dump (level+1, file, MUTABLE_SV(IoFMT_GV(sv)), nest+1,
2117                         maxnest, dumpops, pvlim);
2118         }
2119         if (IoBOTTOM_NAME(sv))
2120             Perl_dump_indent(aTHX_ level, file, "  BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
2121         if (!IoBOTTOM_GV(sv) || SvTYPE(IoBOTTOM_GV(sv)) == SVt_PVGV)
2122             do_gv_dump (level, file, "  BOTTOM_GV", IoBOTTOM_GV(sv));
2123         else {
2124             Perl_dump_indent(aTHX_ level, file, "  BOTTOM_GV = 0x%"UVxf"\n",
2125                              PTR2UV(IoBOTTOM_GV(sv)));
2126             do_sv_dump (level+1, file, MUTABLE_SV(IoBOTTOM_GV(sv)), nest+1,
2127                         maxnest, dumpops, pvlim);
2128         }
2129         if (isPRINT(IoTYPE(sv)))
2130             Perl_dump_indent(aTHX_ level, file, "  TYPE = '%c'\n", IoTYPE(sv));
2131         else
2132             Perl_dump_indent(aTHX_ level, file, "  TYPE = '\\%o'\n", IoTYPE(sv));
2133         Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)IoFLAGS(sv));
2134         break;
2135     case SVt_REGEXP:
2136       dumpregexp:
2137         {
2138             struct regexp * const r = ReANY((REGEXP*)sv);
2139 #define SV_SET_STRINGIFY_REGEXP_FLAGS(d,flags) STMT_START { \
2140             sv_setpv(d,"");                                 \
2141             append_flags(d, flags, regexp_flags_names);     \
2142             if (SvCUR(d) > 0 && *(SvEND(d) - 1) == ',') {       \
2143                 SvCUR_set(d, SvCUR(d) - 1);                 \
2144                 SvPVX(d)[SvCUR(d)] = '\0';                  \
2145             }                                               \
2146 } STMT_END
2147             SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->compflags);
2148             Perl_dump_indent(aTHX_ level, file, "  COMPFLAGS = 0x%"UVxf" (%s)\n",
2149                                 (UV)(r->compflags), SvPVX_const(d));
2150
2151             SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->extflags);
2152             Perl_dump_indent(aTHX_ level, file, "  EXTFLAGS = 0x%"UVxf" (%s)\n",
2153                                 (UV)(r->extflags), SvPVX_const(d));
2154 #undef SV_SET_STRINGIFY_REGEXP_FLAGS
2155
2156             Perl_dump_indent(aTHX_ level, file, "  INTFLAGS = 0x%"UVxf"\n",
2157                                 (UV)(r->intflags));
2158             Perl_dump_indent(aTHX_ level, file, "  NPARENS = %"UVuf"\n",
2159                                 (UV)(r->nparens));
2160             Perl_dump_indent(aTHX_ level, file, "  LASTPAREN = %"UVuf"\n",
2161                                 (UV)(r->lastparen));
2162             Perl_dump_indent(aTHX_ level, file, "  LASTCLOSEPAREN = %"UVuf"\n",
2163                                 (UV)(r->lastcloseparen));
2164             Perl_dump_indent(aTHX_ level, file, "  MINLEN = %"IVdf"\n",
2165                                 (IV)(r->minlen));
2166             Perl_dump_indent(aTHX_ level, file, "  MINLENRET = %"IVdf"\n",
2167                                 (IV)(r->minlenret));
2168             Perl_dump_indent(aTHX_ level, file, "  GOFS = %"UVuf"\n",
2169                                 (UV)(r->gofs));
2170             Perl_dump_indent(aTHX_ level, file, "  PRE_PREFIX = %"UVuf"\n",
2171                                 (UV)(r->pre_prefix));
2172             Perl_dump_indent(aTHX_ level, file, "  SUBLEN = %"IVdf"\n",
2173                                 (IV)(r->sublen));
2174             Perl_dump_indent(aTHX_ level, file, "  SUBOFFSET = %"IVdf"\n",
2175                                 (IV)(r->suboffset));
2176             Perl_dump_indent(aTHX_ level, file, "  SUBCOFFSET = %"IVdf"\n",
2177                                 (IV)(r->subcoffset));
2178             if (r->subbeg)
2179                 Perl_dump_indent(aTHX_ level, file, "  SUBBEG = 0x%"UVxf" %s\n",
2180                             PTR2UV(r->subbeg),
2181                             pv_display(d, r->subbeg, r->sublen, 50, pvlim));
2182             else
2183                 Perl_dump_indent(aTHX_ level, file, "  SUBBEG = 0x0\n");
2184             Perl_dump_indent(aTHX_ level, file, "  ENGINE = 0x%"UVxf"\n",
2185                                 PTR2UV(r->engine));
2186             Perl_dump_indent(aTHX_ level, file, "  MOTHER_RE = 0x%"UVxf"\n",
2187                                 PTR2UV(r->mother_re));
2188             Perl_dump_indent(aTHX_ level, file, "  PAREN_NAMES = 0x%"UVxf"\n",
2189                                 PTR2UV(r->paren_names));
2190             Perl_dump_indent(aTHX_ level, file, "  SUBSTRS = 0x%"UVxf"\n",
2191                                 PTR2UV(r->substrs));
2192             Perl_dump_indent(aTHX_ level, file, "  PPRIVATE = 0x%"UVxf"\n",
2193                                 PTR2UV(r->pprivate));
2194             Perl_dump_indent(aTHX_ level, file, "  OFFS = 0x%"UVxf"\n",
2195                                 PTR2UV(r->offs));
2196             Perl_dump_indent(aTHX_ level, file, "  QR_ANONCV = 0x%"UVxf"\n",
2197                                 PTR2UV(r->qr_anoncv));
2198 #ifdef PERL_ANY_COW
2199             Perl_dump_indent(aTHX_ level, file, "  SAVED_COPY = 0x%"UVxf"\n",
2200                                 PTR2UV(r->saved_copy));
2201 #endif
2202         }
2203         break;
2204     }
2205     SvREFCNT_dec_NN(d);
2206 }
2207
2208 void
2209 Perl_sv_dump(pTHX_ SV *sv)
2210 {
2211     dVAR;
2212
2213     PERL_ARGS_ASSERT_SV_DUMP;
2214
2215     if (SvROK(sv))
2216         do_sv_dump(0, Perl_debug_log, sv, 0, 4, 0, 0);
2217     else
2218         do_sv_dump(0, Perl_debug_log, sv, 0, 0, 0, 0);
2219 }
2220
2221 int
2222 Perl_runops_debug(pTHX)
2223 {
2224     dVAR;
2225     if (!PL_op) {
2226         Perl_ck_warner_d(aTHX_ packWARN(WARN_DEBUGGING), "NULL OP IN RUN");
2227         return 0;
2228     }
2229
2230     DEBUG_l(Perl_deb(aTHX_ "Entering new RUNOPS level\n"));
2231     do {
2232 #ifdef PERL_TRACE_OPS
2233         ++PL_op_exec_cnt[PL_op->op_type];
2234 #endif
2235         if (PL_debug) {
2236             if (PL_watchaddr && (*PL_watchaddr != PL_watchok))
2237                 PerlIO_printf(Perl_debug_log,
2238                               "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
2239                               PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
2240                               PTR2UV(*PL_watchaddr));
2241             if (DEBUG_s_TEST_) {
2242                 if (DEBUG_v_TEST_) {
2243                     PerlIO_printf(Perl_debug_log, "\n");
2244                     deb_stack_all();
2245                 }
2246                 else
2247                     debstack();
2248             }
2249
2250
2251             if (DEBUG_t_TEST_) debop(PL_op);
2252             if (DEBUG_P_TEST_) debprof(PL_op);
2253         }
2254
2255         OP_ENTRY_PROBE(OP_NAME(PL_op));
2256     } while ((PL_op = PL_op->op_ppaddr(aTHX)));
2257     DEBUG_l(Perl_deb(aTHX_ "leaving RUNOPS level\n"));
2258     PERL_ASYNC_CHECK();
2259
2260     TAINT_NOT;
2261     return 0;
2262 }
2263
2264 I32
2265 Perl_debop(pTHX_ const OP *o)
2266 {
2267     dVAR;
2268
2269     PERL_ARGS_ASSERT_DEBOP;
2270
2271     if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
2272         return 0;
2273
2274     Perl_deb(aTHX_ "%s", OP_NAME(o));
2275     switch (o->op_type) {
2276     case OP_CONST:
2277     case OP_HINTSEVAL:
2278         /* With ITHREADS, consts are stored in the pad, and the right pad
2279          * may not be active here, so check.
2280          * Looks like only during compiling the pads are illegal.
2281          */
2282 #ifdef USE_ITHREADS
2283         if ((((SVOP*)o)->op_sv) || !IN_PERL_COMPILETIME)
2284 #endif
2285             PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
2286         break;
2287     case OP_GVSV:
2288     case OP_GV:
2289         if (cGVOPo_gv) {
2290             SV * const sv = newSV(0);
2291 #ifdef PERL_MAD
2292             /* FIXME - is this making unwarranted assumptions about the
2293                UTF-8 cleanliness of the dump file handle?  */
2294             SvUTF8_on(sv);
2295 #endif
2296             gv_fullname3(sv, cGVOPo_gv, NULL);
2297             PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen_const(sv));
2298             SvREFCNT_dec_NN(sv);
2299         }
2300         else
2301             PerlIO_printf(Perl_debug_log, "(NULL)");
2302         break;
2303
2304     {
2305         int count;
2306
2307     case OP_PADSV:
2308     case OP_PADAV:
2309     case OP_PADHV:
2310         count = 1;
2311         goto dump_padop;
2312     case OP_PADRANGE:
2313         count = o->op_private & OPpPADRANGE_COUNTMASK;
2314     dump_padop:
2315         /* print the lexical's name */
2316         {
2317             CV * const cv = deb_curcv(cxstack_ix);
2318             SV *sv;
2319             PAD * comppad = NULL;
2320             int i;
2321
2322             if (cv) {
2323                 PADLIST * const padlist = CvPADLIST(cv);
2324                 comppad = *PadlistARRAY(padlist);
2325             }
2326             PerlIO_printf(Perl_debug_log, "(");
2327             for (i = 0; i < count; i++) {
2328                 if (comppad &&
2329                         (sv = *av_fetch(comppad, o->op_targ + i, FALSE)))
2330                     PerlIO_printf(Perl_debug_log, "%s", SvPV_nolen_const(sv));
2331                 else
2332                     PerlIO_printf(Perl_debug_log, "[%"UVuf"]",
2333                             (UV)o->op_targ+i);
2334                 if (i < count-1)
2335                     PerlIO_printf(Perl_debug_log, ",");
2336             }
2337             PerlIO_printf(Perl_debug_log, ")");
2338         }
2339         break;
2340     }
2341
2342     default:
2343         break;
2344     }
2345     PerlIO_printf(Perl_debug_log, "\n");
2346     return 0;
2347 }
2348
2349 STATIC CV*
2350 S_deb_curcv(pTHX_ const I32 ix)
2351 {
2352     dVAR;
2353     const PERL_CONTEXT * const cx = &cxstack[ix];
2354     if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
2355         return cx->blk_sub.cv;
2356     else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
2357         return cx->blk_eval.cv;
2358     else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
2359         return PL_main_cv;
2360     else if (ix <= 0)
2361         return NULL;
2362     else
2363         return deb_curcv(ix - 1);
2364 }
2365
2366 void
2367 Perl_watch(pTHX_ char **addr)
2368 {
2369     dVAR;
2370
2371     PERL_ARGS_ASSERT_WATCH;
2372
2373     PL_watchaddr = addr;
2374     PL_watchok = *addr;
2375     PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
2376         PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
2377 }
2378
2379 STATIC void
2380 S_debprof(pTHX_ const OP *o)
2381 {
2382     dVAR;
2383
2384     PERL_ARGS_ASSERT_DEBPROF;
2385
2386     if (!DEBUG_J_TEST_ && CopSTASH_eq(PL_curcop, PL_debstash))
2387         return;
2388     if (!PL_profiledata)
2389         Newxz(PL_profiledata, MAXO, U32);
2390     ++PL_profiledata[o->op_type];
2391 }
2392
2393 void
2394 Perl_debprofdump(pTHX)
2395 {
2396     dVAR;
2397     unsigned i;
2398     if (!PL_profiledata)
2399         return;
2400     for (i = 0; i < MAXO; i++) {
2401         if (PL_profiledata[i])
2402             PerlIO_printf(Perl_debug_log,
2403                           "%5lu %s\n", (unsigned long)PL_profiledata[i],
2404                                        PL_op_name[i]);
2405     }
2406 }
2407
2408 #ifdef PERL_MAD
2409 /*
2410  *    XML variants of most of the above routines
2411  */
2412
2413 STATIC void
2414 S_xmldump_attr(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
2415 {
2416     va_list args;
2417
2418     PERL_ARGS_ASSERT_XMLDUMP_ATTR;
2419
2420     PerlIO_printf(file, "\n    ");
2421     va_start(args, pat);
2422     xmldump_vindent(level, file, pat, &args);
2423     va_end(args);
2424 }
2425
2426
2427 void
2428 Perl_xmldump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
2429 {
2430     va_list args;
2431     PERL_ARGS_ASSERT_XMLDUMP_INDENT;
2432     va_start(args, pat);
2433     xmldump_vindent(level, file, pat, &args);
2434     va_end(args);
2435 }
2436
2437 void
2438 Perl_xmldump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
2439 {
2440     PERL_ARGS_ASSERT_XMLDUMP_VINDENT;
2441
2442     PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
2443     PerlIO_vprintf(file, pat, *args);
2444 }
2445
2446 void
2447 Perl_xmldump_all(pTHX)
2448 {
2449     xmldump_all_perl(FALSE);
2450 }
2451
2452 void
2453 Perl_xmldump_all_perl(pTHX_ bool justperl PERL_UNUSED_DECL)
2454 {
2455     PerlIO_setlinebuf(PL_xmlfp);
2456     if (PL_main_root)
2457         op_xmldump(PL_main_root);
2458     /* someday we might call this, when it outputs XML: */
2459     /* xmldump_packsubs_perl(PL_defstash, justperl); */
2460     if (PL_xmlfp != (PerlIO*)PerlIO_stdout())
2461         PerlIO_close(PL_xmlfp);
2462     PL_xmlfp = 0;
2463 }
2464
2465 void
2466 Perl_xmldump_packsubs(pTHX_ const HV *stash)
2467 {
2468     PERL_ARGS_ASSERT_XMLDUMP_PACKSUBS;
2469     xmldump_packsubs_perl(stash, FALSE);
2470 }
2471
2472 void
2473 Perl_xmldump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
2474 {
2475     I32 i;
2476     HE  *entry;
2477
2478     PERL_ARGS_ASSERT_XMLDUMP_PACKSUBS_PERL;
2479
2480     if (!HvARRAY(stash))
2481         return;
2482     for (i = 0; i <= (I32) HvMAX(stash); i++) {
2483         for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
2484             GV *gv = MUTABLE_GV(HeVAL(entry));
2485             HV *hv;
2486             if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
2487                 continue;
2488             if (GvCVu(gv))
2489                 xmldump_sub_perl(gv, justperl);
2490             if (GvFORM(gv))
2491                 xmldump_form(gv);
2492             if (HeKEY(entry)[HeKLEN(entry)-1] == ':'
2493                 && (hv = GvHV(gv)) && hv != PL_defstash)
2494                 xmldump_packsubs_perl(hv, justperl);    /* nested package */
2495         }
2496     }
2497 }
2498
2499 void
2500 Perl_xmldump_sub(pTHX_ const GV *gv)
2501 {
2502     PERL_ARGS_ASSERT_XMLDUMP_SUB;
2503     xmldump_sub_perl(gv, FALSE);
2504 }
2505
2506 void
2507 Perl_xmldump_sub_perl(pTHX_ const GV *gv, bool justperl)
2508 {
2509     SV * sv;
2510
2511     PERL_ARGS_ASSERT_XMLDUMP_SUB_PERL;
2512
2513     if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
2514         return;
2515
2516     sv = sv_newmortal();
2517     gv_fullname3(sv, gv, NULL);
2518     Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "\nSUB %s = ", SvPVX(sv));
2519     if (CvXSUB(GvCV(gv)))
2520         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "(xsub 0x%"UVxf" %d)\n",
2521             PTR2UV(CvXSUB(GvCV(gv))),
2522             (int)CvXSUBANY(GvCV(gv)).any_i32);
2523     else if (CvROOT(GvCV(gv)))
2524         op_xmldump(CvROOT(GvCV(gv)));
2525     else
2526         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "<undef>\n");
2527 }
2528
2529 void
2530 Perl_xmldump_form(pTHX_ const GV *gv)
2531 {
2532     SV * const sv = sv_newmortal();
2533
2534     PERL_ARGS_ASSERT_XMLDUMP_FORM;
2535
2536     gv_fullname3(sv, gv, NULL);
2537     Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "\nFORMAT %s = ", SvPVX(sv));
2538     if (CvROOT(GvFORM(gv)))
2539         op_xmldump(CvROOT(GvFORM(gv)));
2540     else
2541         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "<undef>\n");
2542 }
2543
2544 void
2545 Perl_xmldump_eval(pTHX)
2546 {
2547     op_xmldump(PL_eval_root);
2548 }
2549
2550 char *
2551 Perl_sv_catxmlsv(pTHX_ SV *dsv, SV *ssv)
2552 {
2553     PERL_ARGS_ASSERT_SV_CATXMLSV;
2554     return sv_catxmlpvn(dsv, SvPVX(ssv), SvCUR(ssv), SvUTF8(ssv));
2555 }
2556
2557 char *
2558 Perl_sv_catxmlpv(pTHX_ SV *dsv, const char *pv, int utf8)
2559 {
2560     PERL_ARGS_ASSERT_SV_CATXMLPV;
2561     return sv_catxmlpvn(dsv, pv, strlen(pv), utf8);
2562 }
2563
2564 char *
2565 Perl_sv_catxmlpvn(pTHX_ SV *dsv, const char *pv, STRLEN len, int utf8)
2566 {
2567     unsigned int c;
2568     const char * const e = pv + len;
2569     const char * const start = pv;
2570     STRLEN dsvcur;
2571     STRLEN cl;
2572
2573     PERL_ARGS_ASSERT_SV_CATXMLPVN;
2574
2575     sv_catpvs(dsv,"");
2576     dsvcur = SvCUR(dsv);        /* in case we have to restart */
2577
2578   retry:
2579     while (pv < e) {
2580         if (utf8) {
2581             c = utf8_to_uvchr_buf((U8*)pv, (U8*)e, &cl);
2582             if (cl == 0) {
2583                 SvCUR(dsv) = dsvcur;
2584                 pv = start;
2585                 utf8 = 0;
2586                 goto retry;
2587             }
2588         }
2589         else
2590             c = (*pv & 255);
2591
2592         switch (c) {
2593         case 0x00:
2594         case 0x01:
2595         case 0x02:
2596         case 0x03:
2597         case 0x04:
2598         case 0x05:
2599         case 0x06:
2600         case 0x07:
2601         case 0x08:
2602         case 0x0b:
2603         case 0x0c:
2604         case 0x0e:
2605         case 0x0f:
2606         case 0x10:
2607         case 0x11:
2608         case 0x12:
2609         case 0x13:
2610         case 0x14:
2611         case 0x15:
2612         case 0x16:
2613         case 0x17:
2614         case 0x18:
2615         case 0x19:
2616         case 0x1a:
2617         case 0x1b:
2618         case 0x1c:
2619         case 0x1d:
2620         case 0x1e:
2621         case 0x1f:
2622         case 0x7f:
2623         case 0x80:
2624         case 0x81:
2625         case 0x82:
2626         case 0x83:
2627         case 0x84:
2628         case 0x86:
2629         case 0x87:
2630         case 0x88:
2631         case 0x89:
2632         case 0x90:
2633         case 0x91:
2634         case 0x92:
2635         case 0x93:
2636         case 0x94:
2637         case 0x95:
2638         case 0x96:
2639         case 0x97:
2640         case 0x98:
2641         case 0x99:
2642         case 0x9a:
2643         case 0x9b:
2644         case 0x9c:
2645         case 0x9d:
2646         case 0x9e:
2647         case 0x9f:
2648             Perl_sv_catpvf(aTHX_ dsv, "STUPIDXML(#x%X)", c);
2649             break;
2650         case '<':
2651             sv_catpvs(dsv, "&lt;");
2652             break;
2653         case '>':
2654             sv_catpvs(dsv, "&gt;");
2655             break;
2656         case '&':
2657             sv_catpvs(dsv, "&amp;");
2658             break;
2659         case '"':
2660             sv_catpvs(dsv, "&#34;");
2661             break;
2662         default:
2663             if (c < 0xD800) {
2664                 if (c < 32 || c > 127) {
2665                     Perl_sv_catpvf(aTHX_ dsv, "&#x%X;", c);
2666                 }
2667                 else {
2668                     const char string = (char) c;
2669                     sv_catpvn(dsv, &string, 1);
2670                 }
2671                 break;
2672             }
2673             if ((c >= 0xD800 && c <= 0xDB7F) ||
2674                 (c >= 0xDC00 && c <= 0xDFFF) ||
2675                 (c >= 0xFFF0 && c <= 0xFFFF) ||
2676                  c > 0x10ffff)
2677                 Perl_sv_catpvf(aTHX_ dsv, "STUPIDXML(#x%X)", c);
2678             else
2679                 Perl_sv_catpvf(aTHX_ dsv, "&#x%X;", c);
2680         }
2681
2682         if (utf8)
2683             pv += UTF8SKIP(pv);
2684         else
2685             pv++;
2686     }
2687
2688     return SvPVX(dsv);
2689 }
2690
2691 char *
2692 Perl_sv_xmlpeek(pTHX_ SV *sv)
2693 {
2694     SV * const t = sv_newmortal();
2695     STRLEN n_a;
2696     int unref = 0;
2697
2698     PERL_ARGS_ASSERT_SV_XMLPEEK;
2699
2700     sv_utf8_upgrade(t);
2701     sv_setpvs(t, "");
2702     /* retry: */
2703     if (!sv) {
2704         sv_catpv(t, "VOID=\"\"");
2705         goto finish;
2706     }
2707     else if (sv == (const SV *)0x55555555 || ((char)SvTYPE(sv)) == 'U') {
2708         sv_catpv(t, "WILD=\"\"");
2709         goto finish;
2710     }
2711     else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
2712         if (sv == &PL_sv_undef) {
2713             sv_catpv(t, "SV_UNDEF=\"1\"");
2714             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
2715                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2716                 SvREADONLY(sv))
2717                 goto finish;
2718         }
2719         else if (sv == &PL_sv_no) {
2720             sv_catpv(t, "SV_NO=\"1\"");
2721             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
2722                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2723                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
2724                                   SVp_POK|SVp_NOK)) &&
2725                 SvCUR(sv) == 0 &&
2726                 SvNVX(sv) == 0.0)
2727                 goto finish;
2728         }
2729         else if (sv == &PL_sv_yes) {
2730             sv_catpv(t, "SV_YES=\"1\"");
2731             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
2732                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2733                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
2734                                   SVp_POK|SVp_NOK)) &&
2735                 SvCUR(sv) == 1 &&
2736                 SvPVX(sv) && *SvPVX(sv) == '1' &&
2737                 SvNVX(sv) == 1.0)
2738                 goto finish;
2739         }
2740         else {
2741             sv_catpv(t, "SV_PLACEHOLDER=\"1\"");
2742             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
2743                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2744                 SvREADONLY(sv))
2745                 goto finish;
2746         }
2747         sv_catpv(t, " XXX=\"\" ");
2748     }
2749     else if (SvREFCNT(sv) == 0) {
2750         sv_catpv(t, " refcnt=\"0\"");
2751         unref++;
2752     }
2753     else if (DEBUG_R_TEST_) {
2754         int is_tmp = 0;
2755         I32 ix;
2756         /* is this SV on the tmps stack? */
2757         for (ix=PL_tmps_ix; ix>=0; ix--) {
2758             if (PL_tmps_stack[ix] == sv) {
2759                 is_tmp = 1;
2760                 break;
2761             }
2762         }
2763         if (SvREFCNT(sv) > 1)
2764             Perl_sv_catpvf(aTHX_ t, " DRT=\"<%"UVuf"%s>\"", (UV)SvREFCNT(sv),
2765                     is_tmp ? "T" : "");
2766         else if (is_tmp)
2767             sv_catpv(t, " DRT=\"<T>\"");
2768     }
2769
2770     if (SvROK(sv)) {
2771         sv_catpv(t, " ROK=\"\"");
2772     }
2773     switch (SvTYPE(sv)) {
2774     default:
2775         sv_catpv(t, " FREED=\"1\"");
2776         goto finish;
2777
2778     case SVt_NULL:
2779         sv_catpv(t, " UNDEF=\"1\"");
2780         goto finish;
2781     case SVt_IV:
2782         sv_catpv(t, " IV=\"");
2783         break;
2784     case SVt_NV:
2785         sv_catpv(t, " NV=\"");
2786         break;
2787     case SVt_PV:
2788         sv_catpv(t, " PV=\"");
2789         break;
2790     case SVt_PVIV:
2791         sv_catpv(t, " PVIV=\"");
2792         break;
2793     case SVt_PVNV:
2794         sv_catpv(t, " PVNV=\"");
2795         break;
2796     case SVt_PVMG:
2797         sv_catpv(t, " PVMG=\"");
2798         break;
2799     case SVt_PVLV:
2800         sv_catpv(t, " PVLV=\"");
2801         break;
2802     case SVt_PVAV:
2803         sv_catpv(t, " AV=\"");
2804         break;
2805     case SVt_PVHV:
2806         sv_catpv(t, " HV=\"");
2807         break;
2808     case SVt_PVCV:
2809         if (CvGV(sv))
2810             Perl_sv_catpvf(aTHX_ t, " CV=\"(%s)\"", GvNAME(CvGV(sv)));
2811         else
2812             sv_catpv(t, " CV=\"()\"");
2813         goto finish;
2814     case SVt_PVGV:
2815         sv_catpv(t, " GV=\"");
2816         break;
2817     case SVt_INVLIST:
2818         sv_catpv(t, " DUMMY=\"");
2819         break;
2820     case SVt_REGEXP:
2821         sv_catpv(t, " REGEXP=\"");
2822         break;
2823     case SVt_PVFM:
2824         sv_catpv(t, " FM=\"");
2825         break;
2826     case SVt_PVIO:
2827         sv_catpv(t, " IO=\"");
2828         break;
2829     }
2830
2831     if (SvPOKp(sv)) {
2832         if (SvPVX(sv)) {
2833             sv_catxmlsv(t, sv);
2834         }
2835     }
2836     else if (SvNOKp(sv)) {
2837         STORE_NUMERIC_LOCAL_SET_STANDARD();
2838         Perl_sv_catpvf(aTHX_ t, "%"NVgf"",SvNVX(sv));
2839         RESTORE_NUMERIC_LOCAL();
2840     }
2841     else if (SvIOKp(sv)) {
2842         if (SvIsUV(sv))
2843             Perl_sv_catpvf(aTHX_ t, "%"UVuf"", (UV)SvUVX(sv));
2844         else
2845             Perl_sv_catpvf(aTHX_ t, "%"IVdf"", (IV)SvIVX(sv));
2846     }
2847     else
2848         sv_catpv(t, "");
2849     sv_catpv(t, "\"");
2850
2851   finish:
2852     while (unref--)
2853         sv_catpv(t, ")");
2854     return SvPV(t, n_a);
2855 }
2856
2857 void
2858 Perl_do_pmop_xmldump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
2859 {
2860     PERL_ARGS_ASSERT_DO_PMOP_XMLDUMP;
2861
2862     if (!pm) {
2863         Perl_xmldump_indent(aTHX_ level, file, "<pmop/>\n");
2864         return;
2865     }
2866     Perl_xmldump_indent(aTHX_ level, file, "<pmop \n");
2867     level++;
2868     if (PM_GETRE(pm)) {
2869         REGEXP *const r = PM_GETRE(pm);
2870         SV * const tmpsv = newSVpvn_utf8("", 0, TRUE);
2871         sv_catxmlsv(tmpsv, MUTABLE_SV(r));
2872         Perl_xmldump_indent(aTHX_ level, file, "pre=\"%s\"\n",
2873              SvPVX(tmpsv));
2874         SvREFCNT_dec_NN(tmpsv);
2875         Perl_xmldump_indent(aTHX_ level, file, "when=\"%s\"\n",
2876              (pm->op_private & OPpRUNTIME) ? "RUN" : "COMP");
2877     }
2878     else
2879         Perl_xmldump_indent(aTHX_ level, file, "pre=\"\" when=\"RUN\"\n");
2880     if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
2881         SV * const tmpsv = pm_description(pm);
2882         Perl_xmldump_indent(aTHX_ level, file, "pmflags=\"%s\"\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
2883         SvREFCNT_dec_NN(tmpsv);
2884     }
2885
2886     level--;
2887     if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
2888         Perl_xmldump_indent(aTHX_ level, file, ">\n");
2889         Perl_xmldump_indent(aTHX_ level+1, file, "<pm_repl>\n");
2890         do_op_xmldump(level+2, file, pm->op_pmreplrootu.op_pmreplroot);
2891         Perl_xmldump_indent(aTHX_ level+1, file, "</pm_repl>\n");
2892         Perl_xmldump_indent(aTHX_ level, file, "</pmop>\n");
2893     }
2894     else
2895         Perl_xmldump_indent(aTHX_ level, file, "/>\n");
2896 }
2897
2898 void
2899 Perl_pmop_xmldump(pTHX_ const PMOP *pm)
2900 {
2901     do_pmop_xmldump(0, PL_xmlfp, pm);
2902 }
2903
2904 void
2905 Perl_do_op_xmldump(pTHX_ I32 level, PerlIO *file, const OP *o)
2906 {
2907     UV      seq;
2908     int     contents = 0;
2909     const OPCODE optype = o->op_type;
2910
2911     PERL_ARGS_ASSERT_DO_OP_XMLDUMP;
2912
2913     if (!o)
2914         return;
2915     seq = sequence_num(o);
2916     Perl_xmldump_indent(aTHX_ level, file,
2917         "<op_%s seq=\"%"UVuf" -> ",
2918              OP_NAME(o),
2919                       seq);
2920     level++;
2921     if (o->op_next)
2922         PerlIO_printf(file, seq ? "%"UVuf"\"" : "(%"UVuf")\"",
2923                       sequence_num(o->op_next));
2924     else
2925         PerlIO_printf(file, "DONE\"");
2926
2927     if (o->op_targ) {
2928         if (optype == OP_NULL)
2929         {
2930             PerlIO_printf(file, " was=\"%s\"", PL_op_name[o->op_targ]);
2931             if (o->op_targ == OP_NEXTSTATE)
2932             {
2933                 if (CopLINE(cCOPo))
2934                     PerlIO_printf(file, " line=\"%"UVuf"\"",
2935                                      (UV)CopLINE(cCOPo));
2936                 if (CopSTASHPV(cCOPo))
2937                     PerlIO_printf(file, " package=\"%s\"",
2938                                      CopSTASHPV(cCOPo));
2939                 if (CopLABEL(cCOPo))
2940                     PerlIO_printf(file, " label=\"%s\"",
2941                                      CopLABEL(cCOPo));
2942             }
2943         }
2944         else
2945             PerlIO_printf(file, " targ=\"%ld\"", (long)o->op_targ);
2946     }
2947 #ifdef DUMPADDR
2948     PerlIO_printf(file, " addr=\"0x%"UVxf" => 0x%"UVxf"\"", (UV)o, (UV)o->op_next);
2949 #endif
2950
2951     DUMP_OP_FLAGS(o,1,0,file);
2952     DUMP_OP_PRIVATE(o,1,0,file);
2953
2954     switch (optype) {
2955     case OP_AELEMFAST:
2956         if (o->op_flags & OPf_SPECIAL) {
2957             break;
2958         }
2959     case OP_GVSV:
2960     case OP_GV:
2961 #ifdef USE_ITHREADS
2962         S_xmldump_attr(aTHX_ level, file, "padix=\"%" IVdf "\"", (IV)cPADOPo->op_padix);
2963 #else
2964         if (cSVOPo->op_sv) {
2965             SV * const tmpsv1 = newSVpvn_utf8(NULL, 0, TRUE);
2966             SV * const tmpsv2 = newSVpvn_utf8("", 0, TRUE);
2967             char *s;
2968             STRLEN len;
2969             ENTER;
2970             SAVEFREESV(tmpsv1);
2971             SAVEFREESV(tmpsv2);
2972             gv_fullname3(tmpsv1, MUTABLE_GV(cSVOPo->op_sv), NULL);
2973             s = SvPV(tmpsv1,len);
2974             sv_catxmlpvn(tmpsv2, s, len, 1);
2975             S_xmldump_attr(aTHX_ level, file, "gv=\"%s\"", SvPV(tmpsv2, len));
2976             LEAVE;
2977         }
2978         else
2979             S_xmldump_attr(aTHX_ level, file, "gv=\"NULL\"");
2980 #endif
2981         break;
2982     case OP_CONST:
2983     case OP_HINTSEVAL:
2984     case OP_METHOD_NAMED:
2985 #ifndef USE_ITHREADS
2986         /* with ITHREADS, consts are stored in the pad, and the right pad
2987          * may not be active here, so skip */
2988         S_xmldump_attr(aTHX_ level, file, "%s", sv_xmlpeek(cSVOPo_sv));
2989 #endif
2990         break;
2991     case OP_ANONCODE:
2992         if (!contents) {
2993             contents = 1;
2994             PerlIO_printf(file, ">\n");
2995         }
2996         do_op_xmldump(level+1, file, CvROOT(cSVOPo_sv));
2997         break;
2998     case OP_NEXTSTATE:
2999     case OP_DBSTATE:
3000         if (CopLINE(cCOPo))
3001             S_xmldump_attr(aTHX_ level, file, "line=\"%"UVuf"\"",
3002                              (UV)CopLINE(cCOPo));
3003         if (CopSTASHPV(cCOPo))
3004             S_xmldump_attr(aTHX_ level, file, "package=\"%s\"",
3005                              CopSTASHPV(cCOPo));
3006         if (CopLABEL(cCOPo))
3007             S_xmldump_attr(aTHX_ level, file, "label=\"%s\"",
3008                              CopLABEL(cCOPo));
3009         break;
3010     case OP_ENTERLOOP:
3011         S_xmldump_attr(aTHX_ level, file, "redo=\"");
3012         if (cLOOPo->op_redoop)
3013             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_redoop));
3014         else
3015             PerlIO_printf(file, "DONE\"");
3016         S_xmldump_attr(aTHX_ level, file, "next=\"");
3017         if (cLOOPo->op_nextop)
3018             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_nextop));
3019         else
3020             PerlIO_printf(file, "DONE\"");
3021         S_xmldump_attr(aTHX_ level, file, "last=\"");
3022         if (cLOOPo->op_lastop)
3023             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_lastop));
3024         else
3025             PerlIO_printf(file, "DONE\"");
3026         break;
3027     case OP_COND_EXPR:
3028     case OP_RANGE:
3029     case OP_MAPWHILE:
3030     case OP_GREPWHILE:
3031     case OP_OR:
3032     case OP_AND:
3033         S_xmldump_attr(aTHX_ level, file, "other=\"");
3034         if (cLOGOPo->op_other)
3035             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOGOPo->op_other));
3036         else
3037             PerlIO_printf(file, "DONE\"");
3038         break;
3039     case OP_LEAVE:
3040     case OP_LEAVEEVAL:
3041     case OP_LEAVESUB:
3042     case OP_LEAVESUBLV:
3043     case OP_LEAVEWRITE:
3044     case OP_SCOPE:
3045         if (o->op_private & OPpREFCOUNTED)
3046             S_xmldump_attr(aTHX_ level, file, "refcnt=\"%"UVuf"\"", (UV)o->op_targ);
3047         break;
3048     default:
3049         break;
3050     }
3051
3052     if (PL_madskills && o->op_madprop) {
3053         char prevkey = '\0';
3054         SV * const tmpsv = newSVpvn_utf8("", 0, TRUE);
3055         const MADPROP* mp = o->op_madprop;
3056
3057         if (!contents) {
3058             contents = 1;
3059             PerlIO_printf(file, ">\n");
3060         }
3061         Perl_xmldump_indent(aTHX_ level, file, "<madprops>\n");
3062         level++;
3063         while (mp) {
3064             char tmp = mp->mad_key;
3065             sv_setpvs(tmpsv,"\"");
3066             if (tmp)
3067                 sv_catxmlpvn(tmpsv, &tmp, 1, 0);
3068             if ((tmp == '_') || (tmp == '#')) /* '_' '#' whitespace belong to the previous token. */
3069                 sv_catxmlpvn(tmpsv, &prevkey, 1, 0);
3070             else
3071                 prevkey = tmp;
3072             sv_catpv(tmpsv, "\"");
3073             switch (mp->mad_type) {
3074             case MAD_NULL:
3075                 sv_catpv(tmpsv, "NULL");
3076                 Perl_xmldump_indent(aTHX_ level, file, "<mad_null key=%s/>\n", SvPVX(tmpsv));
3077                 break;
3078             case MAD_PV:
3079                 sv_catpv(tmpsv, " val=\"");
3080                 sv_catxmlpvn(tmpsv, (char*)mp->mad_val, mp->mad_vlen,1);
3081                 sv_catpv(tmpsv, "\"");
3082                 Perl_xmldump_indent(aTHX_ level, file, "<mad_pv key=%s/>\n", SvPVX(tmpsv));
3083                 break;
3084             case MAD_SV:
3085                 sv_catpv(tmpsv, " val=\"");
3086                 sv_catxmlsv(tmpsv, MUTABLE_SV(mp->mad_val));
3087                 sv_catpv(tmpsv, "\"");
3088                 Perl_xmldump_indent(aTHX_ level, file, "<mad_sv key=%s/>\n", SvPVX(tmpsv));
3089                 break;
3090             case MAD_OP:
3091                 if ((OP*)mp->mad_val) {
3092                     Perl_xmldump_indent(aTHX_ level, file, "<mad_op key=%s>\n", SvPVX(tmpsv));
3093                     do_op_xmldump(level+1, file, (OP*)mp->mad_val);
3094                     Perl_xmldump_indent(aTHX_ level, file, "</mad_op>\n");
3095                 }
3096                 break;
3097             default:
3098                 Perl_xmldump_indent(aTHX_ level, file, "<mad_unk key=%s/>\n", SvPVX(tmpsv));
3099                 break;
3100             }
3101             mp = mp->mad_next;
3102         }
3103         level--;
3104         Perl_xmldump_indent(aTHX_ level, file, "</madprops>\n");
3105
3106         SvREFCNT_dec_NN(tmpsv);
3107     }
3108
3109     switch (optype) {
3110     case OP_PUSHRE:
3111     case OP_MATCH:
3112     case OP_QR:
3113     case OP_SUBST:
3114         if (!contents) {
3115             contents = 1;
3116             PerlIO_printf(file, ">\n");
3117         }
3118         do_pmop_xmldump(level, file, cPMOPo);
3119         break;
3120     default:
3121         break;
3122     }
3123
3124     if (o->op_flags & OPf_KIDS) {
3125         OP *kid;
3126         if (!contents) {
3127             contents = 1;
3128             PerlIO_printf(file, ">\n");
3129         }
3130         for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
3131             do_op_xmldump(level, file, kid);
3132     }
3133
3134     if (contents)
3135         Perl_xmldump_indent(aTHX_ level-1, file, "</op_%s>\n", OP_NAME(o));
3136     else
3137         PerlIO_printf(file, " />\n");
3138 }
3139
3140 void
3141 Perl_op_xmldump(pTHX_ const OP *o)
3142 {
3143     PERL_ARGS_ASSERT_OP_XMLDUMP;
3144
3145     do_op_xmldump(0, PL_xmlfp, o);
3146 }
3147 #endif
3148
3149 /*
3150  * Local variables:
3151  * c-indentation-style: bsd
3152  * c-basic-offset: 4
3153  * indent-tabs-mode: nil
3154  * End:
3155  *
3156  * ex: set ts=8 sts=4 sw=4 et:
3157  */