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