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\"]",
1696                                          sv_uni_display(d, sv, 6 * SvCUR(sv),
1697                                                         UNI_DISPLAY_QQ));
1698                 PerlIO_printf(file, "\n");
1699             }
1700             Perl_dump_indent(aTHX_ level, file, "  CUR = %"IVdf"\n", (IV)SvCUR(sv));
1701             if (!re)
1702                 Perl_dump_indent(aTHX_ level, file, "  LEN = %"IVdf"\n",
1703                                        (IV)SvLEN(sv));
1704 #ifdef PERL_NEW_COPY_ON_WRITE
1705             if (SvIsCOW(sv) && SvLEN(sv))
1706                 Perl_dump_indent(aTHX_ level, file, "  COW_REFCNT = %d\n",
1707                                        CowREFCNT(sv));
1708 #endif
1709         }
1710         else
1711             Perl_dump_indent(aTHX_ level, file, "  PV = 0\n");
1712     }
1713
1714     if (type >= SVt_PVMG) {
1715         if (type == SVt_PVMG && SvPAD_OUR(sv)) {
1716             HV * const ost = SvOURSTASH(sv);
1717             if (ost)
1718                 do_hv_dump(level, file, "  OURSTASH", ost);
1719         } else if (SvTYPE(sv) == SVt_PVAV && AvPAD_NAMELIST(sv)) {
1720             Perl_dump_indent(aTHX_ level, file, "  MAXNAMED = %"UVuf"\n",
1721                                    (UV)PadnamelistMAXNAMED(sv));
1722         } else {
1723             if (SvMAGIC(sv))
1724                 do_magic_dump(level, file, SvMAGIC(sv), nest+1, maxnest, dumpops, pvlim);
1725         }
1726         if (SvSTASH(sv))
1727             do_hv_dump(level, file, "  STASH", SvSTASH(sv));
1728
1729         if ((type == SVt_PVMG || type == SVt_PVLV) && SvVALID(sv)) {
1730             Perl_dump_indent(aTHX_ level, file, "  USEFUL = %"IVdf"\n", (IV)BmUSEFUL(sv));
1731         }
1732     }
1733
1734     /* Dump type-specific SV fields */
1735
1736     switch (type) {
1737     case SVt_PVAV:
1738         Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(AvARRAY(sv)));
1739         if (AvARRAY(sv) != AvALLOC(sv)) {
1740             PerlIO_printf(file, " (offset=%"IVdf")\n", (IV)(AvARRAY(sv) - AvALLOC(sv)));
1741             Perl_dump_indent(aTHX_ level, file, "  ALLOC = 0x%"UVxf"\n", PTR2UV(AvALLOC(sv)));
1742         }
1743         else
1744             PerlIO_putc(file, '\n');
1745         Perl_dump_indent(aTHX_ level, file, "  FILL = %"IVdf"\n", (IV)AvFILLp(sv));
1746         Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)AvMAX(sv));
1747         /* arylen is stored in magic, and padnamelists use SvMAGIC for
1748            something else. */
1749         if (!AvPAD_NAMELIST(sv))
1750             Perl_dump_indent(aTHX_ level, file, "  ARYLEN = 0x%"UVxf"\n",
1751                                    SvMAGIC(sv) ? PTR2UV(AvARYLEN(sv)) : 0);
1752         sv_setpvs(d, "");
1753         if (AvREAL(sv)) sv_catpv(d, ",REAL");
1754         if (AvREIFY(sv))        sv_catpv(d, ",REIFY");
1755         Perl_dump_indent(aTHX_ level, file, "  FLAGS = (%s)\n",
1756                          SvCUR(d) ? SvPVX_const(d) + 1 : "");
1757         if (nest < maxnest && av_len(MUTABLE_AV(sv)) >= 0) {
1758             int count;
1759             for (count = 0; count <=  av_len(MUTABLE_AV(sv)) && count < maxnest; count++) {
1760                 SV** const elt = av_fetch(MUTABLE_AV(sv),count,0);
1761
1762                 Perl_dump_indent(aTHX_ level + 1, file, "Elt No. %"IVdf"\n", (IV)count);
1763                 if (elt)
1764                     do_sv_dump(level+1, file, *elt, nest+1, maxnest, dumpops, pvlim);
1765             }
1766         }
1767         break;
1768     case SVt_PVHV:
1769         Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(HvARRAY(sv)));
1770         if (HvARRAY(sv) && HvUSEDKEYS(sv)) {
1771             /* Show distribution of HEs in the ARRAY */
1772             int freq[200];
1773 #define FREQ_MAX ((int)(sizeof freq / sizeof freq[0] - 1))
1774             int i;
1775             int max = 0;
1776             U32 pow2 = 2, keys = HvUSEDKEYS(sv);
1777             NV theoret, sum = 0;
1778
1779             PerlIO_printf(file, "  (");
1780             Zero(freq, FREQ_MAX + 1, int);
1781             for (i = 0; (STRLEN)i <= HvMAX(sv); i++) {
1782                 HE* h;
1783                 int count = 0;
1784                 for (h = HvARRAY(sv)[i]; h; h = HeNEXT(h))
1785                     count++;
1786                 if (count > FREQ_MAX)
1787                     count = FREQ_MAX;
1788                 freq[count]++;
1789                 if (max < count)
1790                     max = count;
1791             }
1792             for (i = 0; i <= max; i++) {
1793                 if (freq[i]) {
1794                     PerlIO_printf(file, "%d%s:%d", i,
1795                                   (i == FREQ_MAX) ? "+" : "",
1796                                   freq[i]);
1797                     if (i != max)
1798                         PerlIO_printf(file, ", ");
1799                 }
1800             }
1801             PerlIO_putc(file, ')');
1802             /* The "quality" of a hash is defined as the total number of
1803                comparisons needed to access every element once, relative
1804                to the expected number needed for a random hash.
1805
1806                The total number of comparisons is equal to the sum of
1807                the squares of the number of entries in each bucket.
1808                For a random hash of n keys into k buckets, the expected
1809                value is
1810                                 n + n(n-1)/2k
1811             */
1812
1813             for (i = max; i > 0; i--) { /* Precision: count down. */
1814                 sum += freq[i] * i * i;
1815             }
1816             while ((keys = keys >> 1))
1817                 pow2 = pow2 << 1;
1818             theoret = HvUSEDKEYS(sv);
1819             theoret += theoret * (theoret-1)/pow2;
1820             PerlIO_putc(file, '\n');
1821             Perl_dump_indent(aTHX_ level, file, "  hash quality = %.1"NVff"%%", theoret/sum*100);
1822         }
1823         PerlIO_putc(file, '\n');
1824         Perl_dump_indent(aTHX_ level, file, "  KEYS = %"IVdf"\n", (IV)HvUSEDKEYS(sv));
1825         {
1826             STRLEN count = 0;
1827             HE **ents = HvARRAY(sv);
1828
1829             if (ents) {
1830                 HE *const *const last = ents + HvMAX(sv);
1831                 count = last + 1 - ents;
1832
1833                 do {
1834                     if (!*ents)
1835                         --count;
1836                 } while (++ents <= last);
1837             }
1838
1839             if (SvOOK(sv)) {
1840                 struct xpvhv_aux *const aux = HvAUX(sv);
1841                 Perl_dump_indent(aTHX_ level, file, "  FILL = %"UVuf
1842                                  " (cached = %"UVuf")\n",
1843                                  (UV)count, (UV)aux->xhv_fill_lazy);
1844             } else {
1845                 Perl_dump_indent(aTHX_ level, file, "  FILL = %"UVuf"\n",
1846                                  (UV)count);
1847             }
1848         }
1849         Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)HvMAX(sv));
1850         if (SvOOK(sv)) {
1851             Perl_dump_indent(aTHX_ level, file, "  RITER = %"IVdf"\n", (IV)HvRITER_get(sv));
1852             Perl_dump_indent(aTHX_ level, file, "  EITER = 0x%"UVxf"\n", PTR2UV(HvEITER_get(sv)));
1853 #ifdef PERL_HASH_RANDOMIZE_KEYS
1854             Perl_dump_indent(aTHX_ level, file, "  RAND = 0x%"UVxf, (UV)HvRAND_get(sv));
1855             if (HvRAND_get(sv) != HvLASTRAND_get(sv) && HvRITER_get(sv) != -1 ) {
1856                 PerlIO_printf(file, " (LAST = 0x%"UVxf")", (UV)HvLASTRAND_get(sv));
1857             }
1858 #endif
1859             PerlIO_putc(file, '\n');
1860         }
1861         {
1862             MAGIC * const mg = mg_find(sv, PERL_MAGIC_symtab);
1863             if (mg && mg->mg_obj) {
1864                 Perl_dump_indent(aTHX_ level, file, "  PMROOT = 0x%"UVxf"\n", PTR2UV(mg->mg_obj));
1865             }
1866         }
1867         {
1868             const char * const hvname = HvNAME_get(sv);
1869             if (hvname)
1870                 Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", hvname);
1871         }
1872         if (SvOOK(sv)) {
1873             AV * const backrefs
1874                 = *Perl_hv_backreferences_p(aTHX_ MUTABLE_HV(sv));
1875             struct mro_meta * const meta = HvAUX(sv)->xhv_mro_meta;
1876             if (HvAUX(sv)->xhv_name_count)
1877                 Perl_dump_indent(aTHX_
1878                  level, file, "  NAMECOUNT = %"IVdf"\n",
1879                  (IV)HvAUX(sv)->xhv_name_count
1880                 );
1881             if (HvAUX(sv)->xhv_name_u.xhvnameu_name && HvENAME_HEK_NN(sv)) {
1882                 const I32 count = HvAUX(sv)->xhv_name_count;
1883                 if (count) {
1884                     SV * const names = newSVpvs_flags("", SVs_TEMP);
1885                     /* The starting point is the first element if count is
1886                        positive and the second element if count is negative. */
1887                     HEK *const *hekp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1888                         + (count < 0 ? 1 : 0);
1889                     HEK *const *const endp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1890                         + (count < 0 ? -count : count);
1891                     while (hekp < endp) {
1892                         if (*hekp) {
1893                             sv_catpvs(names, ", \"");
1894                             sv_catpvn(names, HEK_KEY(*hekp), HEK_LEN(*hekp));
1895                             sv_catpvs(names, "\"");
1896                         } else {
1897                             /* This should never happen. */
1898                             sv_catpvs(names, ", (null)");
1899                         }
1900                         ++hekp;
1901                     }
1902                     Perl_dump_indent(aTHX_
1903                      level, file, "  ENAME = %s\n", SvPV_nolen(names)+2
1904                     );
1905                 }
1906                 else
1907                     Perl_dump_indent(aTHX_
1908                      level, file, "  ENAME = \"%s\"\n", HvENAME_get(sv)
1909                     );
1910             }
1911             if (backrefs) {
1912                 Perl_dump_indent(aTHX_ level, file, "  BACKREFS = 0x%"UVxf"\n",
1913                                  PTR2UV(backrefs));
1914                 do_sv_dump(level+1, file, MUTABLE_SV(backrefs), nest+1, maxnest,
1915                            dumpops, pvlim);
1916             }
1917             if (meta) {
1918                 /* FIXME - mro_algs kflags can signal a UTF-8 name.  */
1919                 Perl_dump_indent(aTHX_ level, file, "  MRO_WHICH = \"%.*s\" (0x%"UVxf")\n",
1920                                  (int)meta->mro_which->length,
1921                                  meta->mro_which->name,
1922                                  PTR2UV(meta->mro_which));
1923                 Perl_dump_indent(aTHX_ level, file, "  CACHE_GEN = 0x%"UVxf"\n",
1924                                  (UV)meta->cache_gen);
1925                 Perl_dump_indent(aTHX_ level, file, "  PKG_GEN = 0x%"UVxf"\n",
1926                                  (UV)meta->pkg_gen);
1927                 if (meta->mro_linear_all) {
1928                     Perl_dump_indent(aTHX_ level, file, "  MRO_LINEAR_ALL = 0x%"UVxf"\n",
1929                                  PTR2UV(meta->mro_linear_all));
1930                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_all), nest+1, maxnest,
1931                            dumpops, pvlim);
1932                 }
1933                 if (meta->mro_linear_current) {
1934                     Perl_dump_indent(aTHX_ level, file, "  MRO_LINEAR_CURRENT = 0x%"UVxf"\n",
1935                                  PTR2UV(meta->mro_linear_current));
1936                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_current), nest+1, maxnest,
1937                            dumpops, pvlim);
1938                 }
1939                 if (meta->mro_nextmethod) {
1940                     Perl_dump_indent(aTHX_ level, file, "  MRO_NEXTMETHOD = 0x%"UVxf"\n",
1941                                  PTR2UV(meta->mro_nextmethod));
1942                 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_nextmethod), nest+1, maxnest,
1943                            dumpops, pvlim);
1944                 }
1945                 if (meta->isa) {
1946                     Perl_dump_indent(aTHX_ level, file, "  ISA = 0x%"UVxf"\n",
1947                                  PTR2UV(meta->isa));
1948                 do_sv_dump(level+1, file, MUTABLE_SV(meta->isa), nest+1, maxnest,
1949                            dumpops, pvlim);
1950                 }
1951             }
1952         }
1953         if (nest < maxnest) {
1954             HV * const hv = MUTABLE_HV(sv);
1955             STRLEN i;
1956             HE *he;
1957
1958             if (HvARRAY(hv)) {
1959                 int count = maxnest - nest;
1960                 for (i=0; i <= HvMAX(hv); i++) {
1961                     for (he = HvARRAY(hv)[i]; he; he = HeNEXT(he)) {
1962                         U32 hash;
1963                         SV * keysv;
1964                         const char * keypv;
1965                         SV * elt;
1966                         STRLEN len;
1967
1968                         if (count-- <= 0) goto DONEHV;
1969
1970                         hash = HeHASH(he);
1971                         keysv = hv_iterkeysv(he);
1972                         keypv = SvPV_const(keysv, len);
1973                         elt = HeVAL(he);
1974
1975                         Perl_dump_indent(aTHX_ level+1, file, "Elt %s ", pv_display(d, keypv, len, 0, pvlim));
1976                         if (SvUTF8(keysv))
1977                             PerlIO_printf(file, "[UTF8 \"%s\"] ", sv_uni_display(d, keysv, 6 * SvCUR(keysv), UNI_DISPLAY_QQ));
1978                         if (HvEITER_get(hv) == he)
1979                             PerlIO_printf(file, "[CURRENT] ");
1980                         PerlIO_printf(file, "HASH = 0x%"UVxf"\n", (UV) hash);
1981                         do_sv_dump(level+1, file, elt, nest+1, maxnest, dumpops, pvlim);
1982                     }
1983                 }
1984               DONEHV:;
1985             }
1986         }
1987         break;
1988
1989     case SVt_PVCV:
1990         if (CvAUTOLOAD(sv)) {
1991             STRLEN len;
1992             const char *const name =  SvPV_const(sv, len);
1993             Perl_dump_indent(aTHX_ level, file, "  AUTOLOAD = \"%.*s\"\n",
1994                              (int) len, name);
1995         }
1996         if (SvPOK(sv)) {
1997             Perl_dump_indent(aTHX_ level, file, "  PROTOTYPE = \"%.*s\"\n",
1998                              (int) CvPROTOLEN(sv), CvPROTO(sv));
1999         }
2000         /* FALL THROUGH */
2001     case SVt_PVFM:
2002         do_hv_dump(level, file, "  COMP_STASH", CvSTASH(sv));
2003         if (!CvISXSUB(sv)) {
2004             if (CvSTART(sv)) {
2005                 Perl_dump_indent(aTHX_ level, file,
2006                                  "  START = 0x%"UVxf" ===> %"IVdf"\n",
2007                                  PTR2UV(CvSTART(sv)),
2008                                  (IV)sequence_num(CvSTART(sv)));
2009             }
2010             Perl_dump_indent(aTHX_ level, file, "  ROOT = 0x%"UVxf"\n",
2011                              PTR2UV(CvROOT(sv)));
2012             if (CvROOT(sv) && dumpops) {
2013                 do_op_dump(level+1, file, CvROOT(sv));
2014             }
2015         } else {
2016             SV * const constant = cv_const_sv((const CV *)sv);
2017
2018             Perl_dump_indent(aTHX_ level, file, "  XSUB = 0x%"UVxf"\n", PTR2UV(CvXSUB(sv)));
2019
2020             if (constant) {
2021                 Perl_dump_indent(aTHX_ level, file, "  XSUBANY = 0x%"UVxf
2022                                  " (CONST SV)\n",
2023                                  PTR2UV(CvXSUBANY(sv).any_ptr));
2024                 do_sv_dump(level+1, file, constant, nest+1, maxnest, dumpops,
2025                            pvlim);
2026             } else {
2027                 Perl_dump_indent(aTHX_ level, file, "  XSUBANY = %"IVdf"\n",
2028                                  (IV)CvXSUBANY(sv).any_i32);
2029             }
2030         }
2031         if (CvNAMED(sv))
2032             Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n",
2033                                    HEK_KEY(CvNAME_HEK((CV *)sv)));
2034         else do_gvgv_dump(level, file, "  GVGV::GV", CvGV(sv));
2035         Perl_dump_indent(aTHX_ level, file, "  FILE = \"%s\"\n", CvFILE(sv));
2036         Perl_dump_indent(aTHX_ level, file, "  DEPTH = %"IVdf"\n", (IV)CvDEPTH(sv));
2037         Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)CvFLAGS(sv));
2038         Perl_dump_indent(aTHX_ level, file, "  OUTSIDE_SEQ = %"UVuf"\n", (UV)CvOUTSIDE_SEQ(sv));
2039         Perl_dump_indent(aTHX_ level, file, "  PADLIST = 0x%"UVxf"\n", PTR2UV(CvPADLIST(sv)));
2040         if (nest < maxnest) {
2041             do_dump_pad(level+1, file, CvPADLIST(sv), 0);
2042         }
2043         {
2044             const CV * const outside = CvOUTSIDE(sv);
2045             Perl_dump_indent(aTHX_ level, file, "  OUTSIDE = 0x%"UVxf" (%s)\n",
2046                         PTR2UV(outside),
2047                         (!outside ? "null"
2048                          : CvANON(outside) ? "ANON"
2049                          : (outside == PL_main_cv) ? "MAIN"
2050                          : CvUNIQUE(outside) ? "UNIQUE"
2051                          : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED"));
2052         }
2053         if (nest < maxnest && (CvCLONE(sv) || CvCLONED(sv)))
2054             do_sv_dump(level+1, file, MUTABLE_SV(CvOUTSIDE(sv)), nest+1, maxnest, dumpops, pvlim);
2055         break;
2056
2057     case SVt_PVGV:
2058     case SVt_PVLV:
2059         if (type == SVt_PVLV) {
2060             Perl_dump_indent(aTHX_ level, file, "  TYPE = %c\n", LvTYPE(sv));
2061             Perl_dump_indent(aTHX_ level, file, "  TARGOFF = %"IVdf"\n", (IV)LvTARGOFF(sv));
2062             Perl_dump_indent(aTHX_ level, file, "  TARGLEN = %"IVdf"\n", (IV)LvTARGLEN(sv));
2063             Perl_dump_indent(aTHX_ level, file, "  TARG = 0x%"UVxf"\n", PTR2UV(LvTARG(sv)));
2064             Perl_dump_indent(aTHX_ level, file, "  FLAGS = %"IVdf"\n", (IV)LvFLAGS(sv));
2065             if (LvTYPE(sv) != 't' && LvTYPE(sv) != 'T')
2066                 do_sv_dump(level+1, file, LvTARG(sv), nest+1, maxnest,
2067                     dumpops, pvlim);
2068         }
2069         if (isREGEXP(sv)) goto dumpregexp;
2070         if (!isGV_with_GP(sv))
2071             break;
2072         Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", GvNAME(sv));
2073         Perl_dump_indent(aTHX_ level, file, "  NAMELEN = %"IVdf"\n", (IV)GvNAMELEN(sv));
2074         do_hv_dump (level, file, "  GvSTASH", GvSTASH(sv));
2075         Perl_dump_indent(aTHX_ level, file, "  GP = 0x%"UVxf"\n", PTR2UV(GvGP(sv)));
2076         if (!GvGP(sv))
2077             break;
2078         Perl_dump_indent(aTHX_ level, file, "    SV = 0x%"UVxf"\n", PTR2UV(GvSV(sv)));
2079         Perl_dump_indent(aTHX_ level, file, "    REFCNT = %"IVdf"\n", (IV)GvREFCNT(sv));
2080         Perl_dump_indent(aTHX_ level, file, "    IO = 0x%"UVxf"\n", PTR2UV(GvIOp(sv)));
2081         Perl_dump_indent(aTHX_ level, file, "    FORM = 0x%"UVxf"  \n", PTR2UV(GvFORM(sv)));
2082         Perl_dump_indent(aTHX_ level, file, "    AV = 0x%"UVxf"\n", PTR2UV(GvAV(sv)));
2083         Perl_dump_indent(aTHX_ level, file, "    HV = 0x%"UVxf"\n", PTR2UV(GvHV(sv)));
2084         Perl_dump_indent(aTHX_ level, file, "    CV = 0x%"UVxf"\n", PTR2UV(GvCV(sv)));
2085         Perl_dump_indent(aTHX_ level, file, "    CVGEN = 0x%"UVxf"\n", (UV)GvCVGEN(sv));
2086         Perl_dump_indent(aTHX_ level, file, "    LINE = %"IVdf"\n", (IV)GvLINE(sv));
2087         Perl_dump_indent(aTHX_ level, file, "    FILE = \"%s\"\n", GvFILE(sv));
2088         Perl_dump_indent(aTHX_ level, file, "    FLAGS = 0x%"UVxf"\n", (UV)GvFLAGS(sv));
2089         do_gv_dump (level, file, "    EGV", GvEGV(sv));
2090         break;
2091     case SVt_PVIO:
2092         Perl_dump_indent(aTHX_ level, file, "  IFP = 0x%"UVxf"\n", PTR2UV(IoIFP(sv)));
2093         Perl_dump_indent(aTHX_ level, file, "  OFP = 0x%"UVxf"\n", PTR2UV(IoOFP(sv)));
2094         Perl_dump_indent(aTHX_ level, file, "  DIRP = 0x%"UVxf"\n", PTR2UV(IoDIRP(sv)));
2095         Perl_dump_indent(aTHX_ level, file, "  LINES = %"IVdf"\n", (IV)IoLINES(sv));
2096         Perl_dump_indent(aTHX_ level, file, "  PAGE = %"IVdf"\n", (IV)IoPAGE(sv));
2097         Perl_dump_indent(aTHX_ level, file, "  PAGE_LEN = %"IVdf"\n", (IV)IoPAGE_LEN(sv));
2098         Perl_dump_indent(aTHX_ level, file, "  LINES_LEFT = %"IVdf"\n", (IV)IoLINES_LEFT(sv));
2099         if (IoTOP_NAME(sv))
2100             Perl_dump_indent(aTHX_ level, file, "  TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
2101         if (!IoTOP_GV(sv) || SvTYPE(IoTOP_GV(sv)) == SVt_PVGV)
2102             do_gv_dump (level, file, "  TOP_GV", IoTOP_GV(sv));
2103         else {
2104             Perl_dump_indent(aTHX_ level, file, "  TOP_GV = 0x%"UVxf"\n",
2105                              PTR2UV(IoTOP_GV(sv)));
2106             do_sv_dump (level+1, file, MUTABLE_SV(IoTOP_GV(sv)), nest+1,
2107                         maxnest, dumpops, pvlim);
2108         }
2109         /* Source filters hide things that are not GVs in these three, so let's
2110            be careful out there.  */
2111         if (IoFMT_NAME(sv))
2112             Perl_dump_indent(aTHX_ level, file, "  FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
2113         if (!IoFMT_GV(sv) || SvTYPE(IoFMT_GV(sv)) == SVt_PVGV)
2114             do_gv_dump (level, file, "  FMT_GV", IoFMT_GV(sv));
2115         else {
2116             Perl_dump_indent(aTHX_ level, file, "  FMT_GV = 0x%"UVxf"\n",
2117                              PTR2UV(IoFMT_GV(sv)));
2118             do_sv_dump (level+1, file, MUTABLE_SV(IoFMT_GV(sv)), nest+1,
2119                         maxnest, dumpops, pvlim);
2120         }
2121         if (IoBOTTOM_NAME(sv))
2122             Perl_dump_indent(aTHX_ level, file, "  BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
2123         if (!IoBOTTOM_GV(sv) || SvTYPE(IoBOTTOM_GV(sv)) == SVt_PVGV)
2124             do_gv_dump (level, file, "  BOTTOM_GV", IoBOTTOM_GV(sv));
2125         else {
2126             Perl_dump_indent(aTHX_ level, file, "  BOTTOM_GV = 0x%"UVxf"\n",
2127                              PTR2UV(IoBOTTOM_GV(sv)));
2128             do_sv_dump (level+1, file, MUTABLE_SV(IoBOTTOM_GV(sv)), nest+1,
2129                         maxnest, dumpops, pvlim);
2130         }
2131         if (isPRINT(IoTYPE(sv)))
2132             Perl_dump_indent(aTHX_ level, file, "  TYPE = '%c'\n", IoTYPE(sv));
2133         else
2134             Perl_dump_indent(aTHX_ level, file, "  TYPE = '\\%o'\n", IoTYPE(sv));
2135         Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)IoFLAGS(sv));
2136         break;
2137     case SVt_REGEXP:
2138       dumpregexp:
2139         {
2140             struct regexp * const r = ReANY((REGEXP*)sv);
2141 #define SV_SET_STRINGIFY_REGEXP_FLAGS(d,flags) STMT_START { \
2142             sv_setpv(d,"");                                 \
2143             append_flags(d, flags, regexp_flags_names);     \
2144             if (SvCUR(d) > 0 && *(SvEND(d) - 1) == ',') {       \
2145                 SvCUR_set(d, SvCUR(d) - 1);                 \
2146                 SvPVX(d)[SvCUR(d)] = '\0';                  \
2147             }                                               \
2148 } STMT_END
2149             SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->compflags);
2150             Perl_dump_indent(aTHX_ level, file, "  COMPFLAGS = 0x%"UVxf" (%s)\n",
2151                                 (UV)(r->compflags), SvPVX_const(d));
2152
2153             SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->extflags);
2154             Perl_dump_indent(aTHX_ level, file, "  EXTFLAGS = 0x%"UVxf" (%s)\n",
2155                                 (UV)(r->extflags), SvPVX_const(d));
2156 #undef SV_SET_STRINGIFY_REGEXP_FLAGS
2157
2158             Perl_dump_indent(aTHX_ level, file, "  INTFLAGS = 0x%"UVxf"\n",
2159                                 (UV)(r->intflags));
2160             Perl_dump_indent(aTHX_ level, file, "  NPARENS = %"UVuf"\n",
2161                                 (UV)(r->nparens));
2162             Perl_dump_indent(aTHX_ level, file, "  LASTPAREN = %"UVuf"\n",
2163                                 (UV)(r->lastparen));
2164             Perl_dump_indent(aTHX_ level, file, "  LASTCLOSEPAREN = %"UVuf"\n",
2165                                 (UV)(r->lastcloseparen));
2166             Perl_dump_indent(aTHX_ level, file, "  MINLEN = %"IVdf"\n",
2167                                 (IV)(r->minlen));
2168             Perl_dump_indent(aTHX_ level, file, "  MINLENRET = %"IVdf"\n",
2169                                 (IV)(r->minlenret));
2170             Perl_dump_indent(aTHX_ level, file, "  GOFS = %"UVuf"\n",
2171                                 (UV)(r->gofs));
2172             Perl_dump_indent(aTHX_ level, file, "  PRE_PREFIX = %"UVuf"\n",
2173                                 (UV)(r->pre_prefix));
2174             Perl_dump_indent(aTHX_ level, file, "  SUBLEN = %"IVdf"\n",
2175                                 (IV)(r->sublen));
2176             Perl_dump_indent(aTHX_ level, file, "  SUBOFFSET = %"IVdf"\n",
2177                                 (IV)(r->suboffset));
2178             Perl_dump_indent(aTHX_ level, file, "  SUBCOFFSET = %"IVdf"\n",
2179                                 (IV)(r->subcoffset));
2180             if (r->subbeg)
2181                 Perl_dump_indent(aTHX_ level, file, "  SUBBEG = 0x%"UVxf" %s\n",
2182                             PTR2UV(r->subbeg),
2183                             pv_display(d, r->subbeg, r->sublen, 50, pvlim));
2184             else
2185                 Perl_dump_indent(aTHX_ level, file, "  SUBBEG = 0x0\n");
2186             Perl_dump_indent(aTHX_ level, file, "  ENGINE = 0x%"UVxf"\n",
2187                                 PTR2UV(r->engine));
2188             Perl_dump_indent(aTHX_ level, file, "  MOTHER_RE = 0x%"UVxf"\n",
2189                                 PTR2UV(r->mother_re));
2190             if (nest < maxnest && r->mother_re)
2191                 do_sv_dump(level+1, file, (SV *)r->mother_re, nest+1,
2192                            maxnest, dumpops, pvlim);
2193             Perl_dump_indent(aTHX_ level, file, "  PAREN_NAMES = 0x%"UVxf"\n",
2194                                 PTR2UV(r->paren_names));
2195             Perl_dump_indent(aTHX_ level, file, "  SUBSTRS = 0x%"UVxf"\n",
2196                                 PTR2UV(r->substrs));
2197             Perl_dump_indent(aTHX_ level, file, "  PPRIVATE = 0x%"UVxf"\n",
2198                                 PTR2UV(r->pprivate));
2199             Perl_dump_indent(aTHX_ level, file, "  OFFS = 0x%"UVxf"\n",
2200                                 PTR2UV(r->offs));
2201             Perl_dump_indent(aTHX_ level, file, "  QR_ANONCV = 0x%"UVxf"\n",
2202                                 PTR2UV(r->qr_anoncv));
2203 #ifdef PERL_ANY_COW
2204             Perl_dump_indent(aTHX_ level, file, "  SAVED_COPY = 0x%"UVxf"\n",
2205                                 PTR2UV(r->saved_copy));
2206 #endif
2207         }
2208         break;
2209     }
2210     SvREFCNT_dec_NN(d);
2211 }
2212
2213 void
2214 Perl_sv_dump(pTHX_ SV *sv)
2215 {
2216     dVAR;
2217
2218     PERL_ARGS_ASSERT_SV_DUMP;
2219
2220     if (SvROK(sv))
2221         do_sv_dump(0, Perl_debug_log, sv, 0, 4, 0, 0);
2222     else
2223         do_sv_dump(0, Perl_debug_log, sv, 0, 0, 0, 0);
2224 }
2225
2226 int
2227 Perl_runops_debug(pTHX)
2228 {
2229     dVAR;
2230     if (!PL_op) {
2231         Perl_ck_warner_d(aTHX_ packWARN(WARN_DEBUGGING), "NULL OP IN RUN");
2232         return 0;
2233     }
2234
2235     DEBUG_l(Perl_deb(aTHX_ "Entering new RUNOPS level\n"));
2236     do {
2237 #ifdef PERL_TRACE_OPS
2238         ++PL_op_exec_cnt[PL_op->op_type];
2239 #endif
2240         if (PL_debug) {
2241             if (PL_watchaddr && (*PL_watchaddr != PL_watchok))
2242                 PerlIO_printf(Perl_debug_log,
2243                               "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
2244                               PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
2245                               PTR2UV(*PL_watchaddr));
2246             if (DEBUG_s_TEST_) {
2247                 if (DEBUG_v_TEST_) {
2248                     PerlIO_printf(Perl_debug_log, "\n");
2249                     deb_stack_all();
2250                 }
2251                 else
2252                     debstack();
2253             }
2254
2255
2256             if (DEBUG_t_TEST_) debop(PL_op);
2257             if (DEBUG_P_TEST_) debprof(PL_op);
2258         }
2259
2260         OP_ENTRY_PROBE(OP_NAME(PL_op));
2261     } while ((PL_op = PL_op->op_ppaddr(aTHX)));
2262     DEBUG_l(Perl_deb(aTHX_ "leaving RUNOPS level\n"));
2263     PERL_ASYNC_CHECK();
2264
2265     TAINT_NOT;
2266     return 0;
2267 }
2268
2269 I32
2270 Perl_debop(pTHX_ const OP *o)
2271 {
2272     dVAR;
2273
2274     PERL_ARGS_ASSERT_DEBOP;
2275
2276     if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
2277         return 0;
2278
2279     Perl_deb(aTHX_ "%s", OP_NAME(o));
2280     switch (o->op_type) {
2281     case OP_CONST:
2282     case OP_HINTSEVAL:
2283         /* With ITHREADS, consts are stored in the pad, and the right pad
2284          * may not be active here, so check.
2285          * Looks like only during compiling the pads are illegal.
2286          */
2287 #ifdef USE_ITHREADS
2288         if ((((SVOP*)o)->op_sv) || !IN_PERL_COMPILETIME)
2289 #endif
2290             PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
2291         break;
2292     case OP_GVSV:
2293     case OP_GV:
2294         if (cGVOPo_gv) {
2295             SV * const sv = newSV(0);
2296 #ifdef PERL_MAD
2297             /* FIXME - is this making unwarranted assumptions about the
2298                UTF-8 cleanliness of the dump file handle?  */
2299             SvUTF8_on(sv);
2300 #endif
2301             gv_fullname3(sv, cGVOPo_gv, NULL);
2302             PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen_const(sv));
2303             SvREFCNT_dec_NN(sv);
2304         }
2305         else
2306             PerlIO_printf(Perl_debug_log, "(NULL)");
2307         break;
2308
2309     {
2310         int count;
2311
2312     case OP_PADSV:
2313     case OP_PADAV:
2314     case OP_PADHV:
2315         count = 1;
2316         goto dump_padop;
2317     case OP_PADRANGE:
2318         count = o->op_private & OPpPADRANGE_COUNTMASK;
2319     dump_padop:
2320         /* print the lexical's name */
2321         {
2322             CV * const cv = deb_curcv(cxstack_ix);
2323             SV *sv;
2324             PAD * comppad = NULL;
2325             int i;
2326
2327             if (cv) {
2328                 PADLIST * const padlist = CvPADLIST(cv);
2329                 comppad = *PadlistARRAY(padlist);
2330             }
2331             PerlIO_printf(Perl_debug_log, "(");
2332             for (i = 0; i < count; i++) {
2333                 if (comppad &&
2334                         (sv = *av_fetch(comppad, o->op_targ + i, FALSE)))
2335                     PerlIO_printf(Perl_debug_log, "%s", SvPV_nolen_const(sv));
2336                 else
2337                     PerlIO_printf(Perl_debug_log, "[%"UVuf"]",
2338                             (UV)o->op_targ+i);
2339                 if (i < count-1)
2340                     PerlIO_printf(Perl_debug_log, ",");
2341             }
2342             PerlIO_printf(Perl_debug_log, ")");
2343         }
2344         break;
2345     }
2346
2347     default:
2348         break;
2349     }
2350     PerlIO_printf(Perl_debug_log, "\n");
2351     return 0;
2352 }
2353
2354 STATIC CV*
2355 S_deb_curcv(pTHX_ const I32 ix)
2356 {
2357     dVAR;
2358     const PERL_CONTEXT * const cx = &cxstack[ix];
2359     if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
2360         return cx->blk_sub.cv;
2361     else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
2362         return cx->blk_eval.cv;
2363     else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
2364         return PL_main_cv;
2365     else if (ix <= 0)
2366         return NULL;
2367     else
2368         return deb_curcv(ix - 1);
2369 }
2370
2371 void
2372 Perl_watch(pTHX_ char **addr)
2373 {
2374     dVAR;
2375
2376     PERL_ARGS_ASSERT_WATCH;
2377
2378     PL_watchaddr = addr;
2379     PL_watchok = *addr;
2380     PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
2381         PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
2382 }
2383
2384 STATIC void
2385 S_debprof(pTHX_ const OP *o)
2386 {
2387     dVAR;
2388
2389     PERL_ARGS_ASSERT_DEBPROF;
2390
2391     if (!DEBUG_J_TEST_ && CopSTASH_eq(PL_curcop, PL_debstash))
2392         return;
2393     if (!PL_profiledata)
2394         Newxz(PL_profiledata, MAXO, U32);
2395     ++PL_profiledata[o->op_type];
2396 }
2397
2398 void
2399 Perl_debprofdump(pTHX)
2400 {
2401     dVAR;
2402     unsigned i;
2403     if (!PL_profiledata)
2404         return;
2405     for (i = 0; i < MAXO; i++) {
2406         if (PL_profiledata[i])
2407             PerlIO_printf(Perl_debug_log,
2408                           "%5lu %s\n", (unsigned long)PL_profiledata[i],
2409                                        PL_op_name[i]);
2410     }
2411 }
2412
2413 #ifdef PERL_MAD
2414 /*
2415  *    XML variants of most of the above routines
2416  */
2417
2418 STATIC void
2419 S_xmldump_attr(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
2420 {
2421     va_list args;
2422
2423     PERL_ARGS_ASSERT_XMLDUMP_ATTR;
2424
2425     PerlIO_printf(file, "\n    ");
2426     va_start(args, pat);
2427     xmldump_vindent(level, file, pat, &args);
2428     va_end(args);
2429 }
2430
2431
2432 void
2433 Perl_xmldump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
2434 {
2435     va_list args;
2436     PERL_ARGS_ASSERT_XMLDUMP_INDENT;
2437     va_start(args, pat);
2438     xmldump_vindent(level, file, pat, &args);
2439     va_end(args);
2440 }
2441
2442 void
2443 Perl_xmldump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
2444 {
2445     PERL_ARGS_ASSERT_XMLDUMP_VINDENT;
2446
2447     PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
2448     PerlIO_vprintf(file, pat, *args);
2449 }
2450
2451 void
2452 Perl_xmldump_all(pTHX)
2453 {
2454     xmldump_all_perl(FALSE);
2455 }
2456
2457 void
2458 Perl_xmldump_all_perl(pTHX_ bool justperl PERL_UNUSED_DECL)
2459 {
2460     PerlIO_setlinebuf(PL_xmlfp);
2461     if (PL_main_root)
2462         op_xmldump(PL_main_root);
2463     /* someday we might call this, when it outputs XML: */
2464     /* xmldump_packsubs_perl(PL_defstash, justperl); */
2465     if (PL_xmlfp != (PerlIO*)PerlIO_stdout())
2466         PerlIO_close(PL_xmlfp);
2467     PL_xmlfp = 0;
2468 }
2469
2470 void
2471 Perl_xmldump_packsubs(pTHX_ const HV *stash)
2472 {
2473     PERL_ARGS_ASSERT_XMLDUMP_PACKSUBS;
2474     xmldump_packsubs_perl(stash, FALSE);
2475 }
2476
2477 void
2478 Perl_xmldump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
2479 {
2480     I32 i;
2481     HE  *entry;
2482
2483     PERL_ARGS_ASSERT_XMLDUMP_PACKSUBS_PERL;
2484
2485     if (!HvARRAY(stash))
2486         return;
2487     for (i = 0; i <= (I32) HvMAX(stash); i++) {
2488         for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
2489             GV *gv = MUTABLE_GV(HeVAL(entry));
2490             HV *hv;
2491             if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
2492                 continue;
2493             if (GvCVu(gv))
2494                 xmldump_sub_perl(gv, justperl);
2495             if (GvFORM(gv))
2496                 xmldump_form(gv);
2497             if (HeKEY(entry)[HeKLEN(entry)-1] == ':'
2498                 && (hv = GvHV(gv)) && hv != PL_defstash)
2499                 xmldump_packsubs_perl(hv, justperl);    /* nested package */
2500         }
2501     }
2502 }
2503
2504 void
2505 Perl_xmldump_sub(pTHX_ const GV *gv)
2506 {
2507     PERL_ARGS_ASSERT_XMLDUMP_SUB;
2508     xmldump_sub_perl(gv, FALSE);
2509 }
2510
2511 void
2512 Perl_xmldump_sub_perl(pTHX_ const GV *gv, bool justperl)
2513 {
2514     SV * sv;
2515
2516     PERL_ARGS_ASSERT_XMLDUMP_SUB_PERL;
2517
2518     if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
2519         return;
2520
2521     sv = sv_newmortal();
2522     gv_fullname3(sv, gv, NULL);
2523     Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "\nSUB %s = ", SvPVX(sv));
2524     if (CvXSUB(GvCV(gv)))
2525         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "(xsub 0x%"UVxf" %d)\n",
2526             PTR2UV(CvXSUB(GvCV(gv))),
2527             (int)CvXSUBANY(GvCV(gv)).any_i32);
2528     else if (CvROOT(GvCV(gv)))
2529         op_xmldump(CvROOT(GvCV(gv)));
2530     else
2531         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "<undef>\n");
2532 }
2533
2534 void
2535 Perl_xmldump_form(pTHX_ const GV *gv)
2536 {
2537     SV * const sv = sv_newmortal();
2538
2539     PERL_ARGS_ASSERT_XMLDUMP_FORM;
2540
2541     gv_fullname3(sv, gv, NULL);
2542     Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "\nFORMAT %s = ", SvPVX(sv));
2543     if (CvROOT(GvFORM(gv)))
2544         op_xmldump(CvROOT(GvFORM(gv)));
2545     else
2546         Perl_xmldump_indent(aTHX_ 0, PL_xmlfp, "<undef>\n");
2547 }
2548
2549 void
2550 Perl_xmldump_eval(pTHX)
2551 {
2552     op_xmldump(PL_eval_root);
2553 }
2554
2555 char *
2556 Perl_sv_catxmlsv(pTHX_ SV *dsv, SV *ssv)
2557 {
2558     PERL_ARGS_ASSERT_SV_CATXMLSV;
2559     return sv_catxmlpvn(dsv, SvPVX(ssv), SvCUR(ssv), SvUTF8(ssv));
2560 }
2561
2562 char *
2563 Perl_sv_catxmlpv(pTHX_ SV *dsv, const char *pv, int utf8)
2564 {
2565     PERL_ARGS_ASSERT_SV_CATXMLPV;
2566     return sv_catxmlpvn(dsv, pv, strlen(pv), utf8);
2567 }
2568
2569 char *
2570 Perl_sv_catxmlpvn(pTHX_ SV *dsv, const char *pv, STRLEN len, int utf8)
2571 {
2572     unsigned int c;
2573     const char * const e = pv + len;
2574     const char * const start = pv;
2575     STRLEN dsvcur;
2576     STRLEN cl;
2577
2578     PERL_ARGS_ASSERT_SV_CATXMLPVN;
2579
2580     sv_catpvs(dsv,"");
2581     dsvcur = SvCUR(dsv);        /* in case we have to restart */
2582
2583   retry:
2584     while (pv < e) {
2585         if (utf8) {
2586             c = utf8_to_uvchr_buf((U8*)pv, (U8*)e, &cl);
2587             if (cl == 0) {
2588                 SvCUR(dsv) = dsvcur;
2589                 pv = start;
2590                 utf8 = 0;
2591                 goto retry;
2592             }
2593         }
2594         else
2595             c = (*pv & 255);
2596
2597         switch (c) {
2598         case 0x00:
2599         case 0x01:
2600         case 0x02:
2601         case 0x03:
2602         case 0x04:
2603         case 0x05:
2604         case 0x06:
2605         case 0x07:
2606         case 0x08:
2607         case 0x0b:
2608         case 0x0c:
2609         case 0x0e:
2610         case 0x0f:
2611         case 0x10:
2612         case 0x11:
2613         case 0x12:
2614         case 0x13:
2615         case 0x14:
2616         case 0x15:
2617         case 0x16:
2618         case 0x17:
2619         case 0x18:
2620         case 0x19:
2621         case 0x1a:
2622         case 0x1b:
2623         case 0x1c:
2624         case 0x1d:
2625         case 0x1e:
2626         case 0x1f:
2627         case 0x7f:
2628         case 0x80:
2629         case 0x81:
2630         case 0x82:
2631         case 0x83:
2632         case 0x84:
2633         case 0x86:
2634         case 0x87:
2635         case 0x88:
2636         case 0x89:
2637         case 0x90:
2638         case 0x91:
2639         case 0x92:
2640         case 0x93:
2641         case 0x94:
2642         case 0x95:
2643         case 0x96:
2644         case 0x97:
2645         case 0x98:
2646         case 0x99:
2647         case 0x9a:
2648         case 0x9b:
2649         case 0x9c:
2650         case 0x9d:
2651         case 0x9e:
2652         case 0x9f:
2653             Perl_sv_catpvf(aTHX_ dsv, "STUPIDXML(#x%X)", c);
2654             break;
2655         case '<':
2656             sv_catpvs(dsv, "&lt;");
2657             break;
2658         case '>':
2659             sv_catpvs(dsv, "&gt;");
2660             break;
2661         case '&':
2662             sv_catpvs(dsv, "&amp;");
2663             break;
2664         case '"':
2665             sv_catpvs(dsv, "&#34;");
2666             break;
2667         default:
2668             if (c < 0xD800) {
2669                 if (c < 32 || c > 127) {
2670                     Perl_sv_catpvf(aTHX_ dsv, "&#x%X;", c);
2671                 }
2672                 else {
2673                     const char string = (char) c;
2674                     sv_catpvn(dsv, &string, 1);
2675                 }
2676                 break;
2677             }
2678             if ((c >= 0xD800 && c <= 0xDB7F) ||
2679                 (c >= 0xDC00 && c <= 0xDFFF) ||
2680                 (c >= 0xFFF0 && c <= 0xFFFF) ||
2681                  c > 0x10ffff)
2682                 Perl_sv_catpvf(aTHX_ dsv, "STUPIDXML(#x%X)", c);
2683             else
2684                 Perl_sv_catpvf(aTHX_ dsv, "&#x%X;", c);
2685         }
2686
2687         if (utf8)
2688             pv += UTF8SKIP(pv);
2689         else
2690             pv++;
2691     }
2692
2693     return SvPVX(dsv);
2694 }
2695
2696 char *
2697 Perl_sv_xmlpeek(pTHX_ SV *sv)
2698 {
2699     SV * const t = sv_newmortal();
2700     STRLEN n_a;
2701     int unref = 0;
2702
2703     PERL_ARGS_ASSERT_SV_XMLPEEK;
2704
2705     sv_utf8_upgrade(t);
2706     sv_setpvs(t, "");
2707     /* retry: */
2708     if (!sv) {
2709         sv_catpv(t, "VOID=\"\"");
2710         goto finish;
2711     }
2712     else if (sv == (const SV *)0x55555555 || ((char)SvTYPE(sv)) == 'U') {
2713         sv_catpv(t, "WILD=\"\"");
2714         goto finish;
2715     }
2716     else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
2717         if (sv == &PL_sv_undef) {
2718             sv_catpv(t, "SV_UNDEF=\"1\"");
2719             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
2720                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2721                 SvREADONLY(sv))
2722                 goto finish;
2723         }
2724         else if (sv == &PL_sv_no) {
2725             sv_catpv(t, "SV_NO=\"1\"");
2726             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
2727                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2728                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
2729                                   SVp_POK|SVp_NOK)) &&
2730                 SvCUR(sv) == 0 &&
2731                 SvNVX(sv) == 0.0)
2732                 goto finish;
2733         }
2734         else if (sv == &PL_sv_yes) {
2735             sv_catpv(t, "SV_YES=\"1\"");
2736             if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
2737                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2738                 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
2739                                   SVp_POK|SVp_NOK)) &&
2740                 SvCUR(sv) == 1 &&
2741                 SvPVX(sv) && *SvPVX(sv) == '1' &&
2742                 SvNVX(sv) == 1.0)
2743                 goto finish;
2744         }
2745         else {
2746             sv_catpv(t, "SV_PLACEHOLDER=\"1\"");
2747             if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
2748                                  SVs_GMG|SVs_SMG|SVs_RMG)) &&
2749                 SvREADONLY(sv))
2750                 goto finish;
2751         }
2752         sv_catpv(t, " XXX=\"\" ");
2753     }
2754     else if (SvREFCNT(sv) == 0) {
2755         sv_catpv(t, " refcnt=\"0\"");
2756         unref++;
2757     }
2758     else if (DEBUG_R_TEST_) {
2759         int is_tmp = 0;
2760         I32 ix;
2761         /* is this SV on the tmps stack? */
2762         for (ix=PL_tmps_ix; ix>=0; ix--) {
2763             if (PL_tmps_stack[ix] == sv) {
2764                 is_tmp = 1;
2765                 break;
2766             }
2767         }
2768         if (SvREFCNT(sv) > 1)
2769             Perl_sv_catpvf(aTHX_ t, " DRT=\"<%"UVuf"%s>\"", (UV)SvREFCNT(sv),
2770                     is_tmp ? "T" : "");
2771         else if (is_tmp)
2772             sv_catpv(t, " DRT=\"<T>\"");
2773     }
2774
2775     if (SvROK(sv)) {
2776         sv_catpv(t, " ROK=\"\"");
2777     }
2778     switch (SvTYPE(sv)) {
2779     default:
2780         sv_catpv(t, " FREED=\"1\"");
2781         goto finish;
2782
2783     case SVt_NULL:
2784         sv_catpv(t, " UNDEF=\"1\"");
2785         goto finish;
2786     case SVt_IV:
2787         sv_catpv(t, " IV=\"");
2788         break;
2789     case SVt_NV:
2790         sv_catpv(t, " NV=\"");
2791         break;
2792     case SVt_PV:
2793         sv_catpv(t, " PV=\"");
2794         break;
2795     case SVt_PVIV:
2796         sv_catpv(t, " PVIV=\"");
2797         break;
2798     case SVt_PVNV:
2799         sv_catpv(t, " PVNV=\"");
2800         break;
2801     case SVt_PVMG:
2802         sv_catpv(t, " PVMG=\"");
2803         break;
2804     case SVt_PVLV:
2805         sv_catpv(t, " PVLV=\"");
2806         break;
2807     case SVt_PVAV:
2808         sv_catpv(t, " AV=\"");
2809         break;
2810     case SVt_PVHV:
2811         sv_catpv(t, " HV=\"");
2812         break;
2813     case SVt_PVCV:
2814         if (CvGV(sv))
2815             Perl_sv_catpvf(aTHX_ t, " CV=\"(%s)\"", GvNAME(CvGV(sv)));
2816         else
2817             sv_catpv(t, " CV=\"()\"");
2818         goto finish;
2819     case SVt_PVGV:
2820         sv_catpv(t, " GV=\"");
2821         break;
2822     case SVt_INVLIST:
2823         sv_catpv(t, " DUMMY=\"");
2824         break;
2825     case SVt_REGEXP:
2826         sv_catpv(t, " REGEXP=\"");
2827         break;
2828     case SVt_PVFM:
2829         sv_catpv(t, " FM=\"");
2830         break;
2831     case SVt_PVIO:
2832         sv_catpv(t, " IO=\"");
2833         break;
2834     }
2835
2836     if (SvPOKp(sv)) {
2837         if (SvPVX(sv)) {
2838             sv_catxmlsv(t, sv);
2839         }
2840     }
2841     else if (SvNOKp(sv)) {
2842         STORE_NUMERIC_LOCAL_SET_STANDARD();
2843         Perl_sv_catpvf(aTHX_ t, "%"NVgf"",SvNVX(sv));
2844         RESTORE_NUMERIC_LOCAL();
2845     }
2846     else if (SvIOKp(sv)) {
2847         if (SvIsUV(sv))
2848             Perl_sv_catpvf(aTHX_ t, "%"UVuf"", (UV)SvUVX(sv));
2849         else
2850             Perl_sv_catpvf(aTHX_ t, "%"IVdf"", (IV)SvIVX(sv));
2851     }
2852     else
2853         sv_catpv(t, "");
2854     sv_catpv(t, "\"");
2855
2856   finish:
2857     while (unref--)
2858         sv_catpv(t, ")");
2859     return SvPV(t, n_a);
2860 }
2861
2862 void
2863 Perl_do_pmop_xmldump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
2864 {
2865     PERL_ARGS_ASSERT_DO_PMOP_XMLDUMP;
2866
2867     if (!pm) {
2868         Perl_xmldump_indent(aTHX_ level, file, "<pmop/>\n");
2869         return;
2870     }
2871     Perl_xmldump_indent(aTHX_ level, file, "<pmop \n");
2872     level++;
2873     if (PM_GETRE(pm)) {
2874         REGEXP *const r = PM_GETRE(pm);
2875         SV * const tmpsv = newSVpvn_utf8("", 0, TRUE);
2876         sv_catxmlsv(tmpsv, MUTABLE_SV(r));
2877         Perl_xmldump_indent(aTHX_ level, file, "pre=\"%s\"\n",
2878              SvPVX(tmpsv));
2879         SvREFCNT_dec_NN(tmpsv);
2880         Perl_xmldump_indent(aTHX_ level, file, "when=\"%s\"\n",
2881              (pm->op_private & OPpRUNTIME) ? "RUN" : "COMP");
2882     }
2883     else
2884         Perl_xmldump_indent(aTHX_ level, file, "pre=\"\" when=\"RUN\"\n");
2885     if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
2886         SV * const tmpsv = pm_description(pm);
2887         Perl_xmldump_indent(aTHX_ level, file, "pmflags=\"%s\"\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
2888         SvREFCNT_dec_NN(tmpsv);
2889     }
2890
2891     level--;
2892     if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
2893         Perl_xmldump_indent(aTHX_ level, file, ">\n");
2894         Perl_xmldump_indent(aTHX_ level+1, file, "<pm_repl>\n");
2895         do_op_xmldump(level+2, file, pm->op_pmreplrootu.op_pmreplroot);
2896         Perl_xmldump_indent(aTHX_ level+1, file, "</pm_repl>\n");
2897         Perl_xmldump_indent(aTHX_ level, file, "</pmop>\n");
2898     }
2899     else
2900         Perl_xmldump_indent(aTHX_ level, file, "/>\n");
2901 }
2902
2903 void
2904 Perl_pmop_xmldump(pTHX_ const PMOP *pm)
2905 {
2906     do_pmop_xmldump(0, PL_xmlfp, pm);
2907 }
2908
2909 void
2910 Perl_do_op_xmldump(pTHX_ I32 level, PerlIO *file, const OP *o)
2911 {
2912     UV      seq;
2913     int     contents = 0;
2914     const OPCODE optype = o->op_type;
2915
2916     PERL_ARGS_ASSERT_DO_OP_XMLDUMP;
2917
2918     if (!o)
2919         return;
2920     seq = sequence_num(o);
2921     Perl_xmldump_indent(aTHX_ level, file,
2922         "<op_%s seq=\"%"UVuf" -> ",
2923              OP_NAME(o),
2924                       seq);
2925     level++;
2926     if (o->op_next)
2927         PerlIO_printf(file, seq ? "%"UVuf"\"" : "(%"UVuf")\"",
2928                       sequence_num(o->op_next));
2929     else
2930         PerlIO_printf(file, "DONE\"");
2931
2932     if (o->op_targ) {
2933         if (optype == OP_NULL)
2934         {
2935             PerlIO_printf(file, " was=\"%s\"", PL_op_name[o->op_targ]);
2936             if (o->op_targ == OP_NEXTSTATE)
2937             {
2938                 if (CopLINE(cCOPo))
2939                     PerlIO_printf(file, " line=\"%"UVuf"\"",
2940                                      (UV)CopLINE(cCOPo));
2941                 if (CopSTASHPV(cCOPo))
2942                     PerlIO_printf(file, " package=\"%s\"",
2943                                      CopSTASHPV(cCOPo));
2944                 if (CopLABEL(cCOPo))
2945                     PerlIO_printf(file, " label=\"%s\"",
2946                                      CopLABEL(cCOPo));
2947             }
2948         }
2949         else
2950             PerlIO_printf(file, " targ=\"%ld\"", (long)o->op_targ);
2951     }
2952 #ifdef DUMPADDR
2953     PerlIO_printf(file, " addr=\"0x%"UVxf" => 0x%"UVxf"\"", (UV)o, (UV)o->op_next);
2954 #endif
2955
2956     DUMP_OP_FLAGS(o,1,0,file);
2957     DUMP_OP_PRIVATE(o,1,0,file);
2958
2959     switch (optype) {
2960     case OP_AELEMFAST:
2961         if (o->op_flags & OPf_SPECIAL) {
2962             break;
2963         }
2964     case OP_GVSV:
2965     case OP_GV:
2966 #ifdef USE_ITHREADS
2967         S_xmldump_attr(aTHX_ level, file, "padix=\"%" IVdf "\"", (IV)cPADOPo->op_padix);
2968 #else
2969         if (cSVOPo->op_sv) {
2970             SV * const tmpsv1 = newSVpvn_utf8(NULL, 0, TRUE);
2971             SV * const tmpsv2 = newSVpvn_utf8("", 0, TRUE);
2972             char *s;
2973             STRLEN len;
2974             ENTER;
2975             SAVEFREESV(tmpsv1);
2976             SAVEFREESV(tmpsv2);
2977             gv_fullname3(tmpsv1, MUTABLE_GV(cSVOPo->op_sv), NULL);
2978             s = SvPV(tmpsv1,len);
2979             sv_catxmlpvn(tmpsv2, s, len, 1);
2980             S_xmldump_attr(aTHX_ level, file, "gv=\"%s\"", SvPV(tmpsv2, len));
2981             LEAVE;
2982         }
2983         else
2984             S_xmldump_attr(aTHX_ level, file, "gv=\"NULL\"");
2985 #endif
2986         break;
2987     case OP_CONST:
2988     case OP_HINTSEVAL:
2989     case OP_METHOD_NAMED:
2990 #ifndef USE_ITHREADS
2991         /* with ITHREADS, consts are stored in the pad, and the right pad
2992          * may not be active here, so skip */
2993         S_xmldump_attr(aTHX_ level, file, "%s", sv_xmlpeek(cSVOPo_sv));
2994 #endif
2995         break;
2996     case OP_ANONCODE:
2997         if (!contents) {
2998             contents = 1;
2999             PerlIO_printf(file, ">\n");
3000         }
3001         do_op_xmldump(level+1, file, CvROOT(cSVOPo_sv));
3002         break;
3003     case OP_NEXTSTATE:
3004     case OP_DBSTATE:
3005         if (CopLINE(cCOPo))
3006             S_xmldump_attr(aTHX_ level, file, "line=\"%"UVuf"\"",
3007                              (UV)CopLINE(cCOPo));
3008         if (CopSTASHPV(cCOPo))
3009             S_xmldump_attr(aTHX_ level, file, "package=\"%s\"",
3010                              CopSTASHPV(cCOPo));
3011         if (CopLABEL(cCOPo))
3012             S_xmldump_attr(aTHX_ level, file, "label=\"%s\"",
3013                              CopLABEL(cCOPo));
3014         break;
3015     case OP_ENTERLOOP:
3016         S_xmldump_attr(aTHX_ level, file, "redo=\"");
3017         if (cLOOPo->op_redoop)
3018             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_redoop));
3019         else
3020             PerlIO_printf(file, "DONE\"");
3021         S_xmldump_attr(aTHX_ level, file, "next=\"");
3022         if (cLOOPo->op_nextop)
3023             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_nextop));
3024         else
3025             PerlIO_printf(file, "DONE\"");
3026         S_xmldump_attr(aTHX_ level, file, "last=\"");
3027         if (cLOOPo->op_lastop)
3028             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOOPo->op_lastop));
3029         else
3030             PerlIO_printf(file, "DONE\"");
3031         break;
3032     case OP_COND_EXPR:
3033     case OP_RANGE:
3034     case OP_MAPWHILE:
3035     case OP_GREPWHILE:
3036     case OP_OR:
3037     case OP_AND:
3038         S_xmldump_attr(aTHX_ level, file, "other=\"");
3039         if (cLOGOPo->op_other)
3040             PerlIO_printf(file, "%"UVuf"\"", sequence_num(cLOGOPo->op_other));
3041         else
3042             PerlIO_printf(file, "DONE\"");
3043         break;
3044     case OP_LEAVE:
3045     case OP_LEAVEEVAL:
3046     case OP_LEAVESUB:
3047     case OP_LEAVESUBLV:
3048     case OP_LEAVEWRITE:
3049     case OP_SCOPE:
3050         if (o->op_private & OPpREFCOUNTED)
3051             S_xmldump_attr(aTHX_ level, file, "refcnt=\"%"UVuf"\"", (UV)o->op_targ);
3052         break;
3053     default:
3054         break;
3055     }
3056
3057     if (PL_madskills && o->op_madprop) {
3058         char prevkey = '\0';
3059         SV * const tmpsv = newSVpvn_utf8("", 0, TRUE);
3060         const MADPROP* mp = o->op_madprop;
3061
3062         if (!contents) {
3063             contents = 1;
3064             PerlIO_printf(file, ">\n");
3065         }
3066         Perl_xmldump_indent(aTHX_ level, file, "<madprops>\n");
3067         level++;
3068         while (mp) {
3069             char tmp = mp->mad_key;
3070             sv_setpvs(tmpsv,"\"");
3071             if (tmp)
3072                 sv_catxmlpvn(tmpsv, &tmp, 1, 0);
3073             if ((tmp == '_') || (tmp == '#')) /* '_' '#' whitespace belong to the previous token. */
3074                 sv_catxmlpvn(tmpsv, &prevkey, 1, 0);
3075             else
3076                 prevkey = tmp;
3077             sv_catpv(tmpsv, "\"");
3078             switch (mp->mad_type) {
3079             case MAD_NULL:
3080                 sv_catpv(tmpsv, "NULL");
3081                 Perl_xmldump_indent(aTHX_ level, file, "<mad_null key=%s/>\n", SvPVX(tmpsv));
3082                 break;
3083             case MAD_PV:
3084                 sv_catpv(tmpsv, " val=\"");
3085                 sv_catxmlpvn(tmpsv, (char*)mp->mad_val, mp->mad_vlen,1);
3086                 sv_catpv(tmpsv, "\"");
3087                 Perl_xmldump_indent(aTHX_ level, file, "<mad_pv key=%s/>\n", SvPVX(tmpsv));
3088                 break;
3089             case MAD_SV:
3090                 sv_catpv(tmpsv, " val=\"");
3091                 sv_catxmlsv(tmpsv, MUTABLE_SV(mp->mad_val));
3092                 sv_catpv(tmpsv, "\"");
3093                 Perl_xmldump_indent(aTHX_ level, file, "<mad_sv key=%s/>\n", SvPVX(tmpsv));
3094                 break;
3095             case MAD_OP:
3096                 if ((OP*)mp->mad_val) {
3097                     Perl_xmldump_indent(aTHX_ level, file, "<mad_op key=%s>\n", SvPVX(tmpsv));
3098                     do_op_xmldump(level+1, file, (OP*)mp->mad_val);
3099                     Perl_xmldump_indent(aTHX_ level, file, "</mad_op>\n");
3100                 }
3101                 break;
3102             default:
3103                 Perl_xmldump_indent(aTHX_ level, file, "<mad_unk key=%s/>\n", SvPVX(tmpsv));
3104                 break;
3105             }
3106             mp = mp->mad_next;
3107         }
3108         level--;
3109         Perl_xmldump_indent(aTHX_ level, file, "</madprops>\n");
3110
3111         SvREFCNT_dec_NN(tmpsv);
3112     }
3113
3114     switch (optype) {
3115     case OP_PUSHRE:
3116     case OP_MATCH:
3117     case OP_QR:
3118     case OP_SUBST:
3119         if (!contents) {
3120             contents = 1;
3121             PerlIO_printf(file, ">\n");
3122         }
3123         do_pmop_xmldump(level, file, cPMOPo);
3124         break;
3125     default:
3126         break;
3127     }
3128
3129     if (o->op_flags & OPf_KIDS) {
3130         OP *kid;
3131         if (!contents) {
3132             contents = 1;
3133             PerlIO_printf(file, ">\n");
3134         }
3135         for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
3136             do_op_xmldump(level, file, kid);
3137     }
3138
3139     if (contents)
3140         Perl_xmldump_indent(aTHX_ level-1, file, "</op_%s>\n", OP_NAME(o));
3141     else
3142         PerlIO_printf(file, " />\n");
3143 }
3144
3145 void
3146 Perl_op_xmldump(pTHX_ const OP *o)
3147 {
3148     PERL_ARGS_ASSERT_OP_XMLDUMP;
3149
3150     do_op_xmldump(0, PL_xmlfp, o);
3151 }
3152 #endif
3153
3154 /*
3155  * Local variables:
3156  * c-indentation-style: bsd
3157  * c-basic-offset: 4
3158  * indent-tabs-mode: nil
3159  * End:
3160  *
3161  * ex: set ts=8 sts=4 sw=4 et:
3162  */