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stop T_IN/OUT/INOUT/STDIO typemaps leaking
[perl5.git] / dump.c
CommitLineData
a0d0e21e 1/* dump.c
a687059c 2 *
1129b882
NC		 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
a687059c 5 *
6e21c824
LW		 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.
8d063cd8 8 *
a0d0e21e
LW		 9 */
10
11/*
4ac71550
TC		 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"]
8d063cd8
LW		 16 */
17
166f8a29 18/* This file contains utility routines to dump the contents of SV and OP
61296642 19 * structures, as used by command-line options like -Dt and -Dx, and
166f8a29
DM		 20 * by Devel::Peek.
21 *
22 * It also holds the debugging version of the runops function.
dcccc8ff
KW		 23
24=head1 Display and Dump functions
166f8a29
DM		 25 */
26
8d063cd8 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_DUMP_C
8d063cd8 29#include "perl.h"
f722798b 30#include "regcomp.h"
0bd48802 31
5357ca29
NC		 32static const char* const svtypenames[SVt_LAST] = {
33 "NULL",
34 "IV",
b53eecb4 35 "NV",
5357ca29 36 "PV",
e94d9b54 37 "INVLIST",
5357ca29
NC		 38 "PVIV",
39 "PVNV",
40 "PVMG",
5c35adbb 41 "REGEXP",
5357ca29
NC		 42 "PVGV",
43 "PVLV",
44 "PVAV",
45 "PVHV",
46 "PVCV",
47 "PVFM",
48 "PVIO"
49};
50
51
52static const char* const svshorttypenames[SVt_LAST] = {
53 "UNDEF",
54 "IV",
b53eecb4 55 "NV",
5357ca29 56 "PV",
e94d9b54 57 "INVLST",
5357ca29
NC		 58 "PVIV",
59 "PVNV",
60 "PVMG",
5c35adbb 61 "REGEXP",
5357ca29
NC		 62 "GV",
63 "PVLV",
64 "AV",
65 "HV",
66 "CV",
67 "FM",
68 "IO"
69};
70
a0c2f4dd
NC		 71struct flag_to_name {
72 U32 flag;
73 const char *name;
74};
75
76static void
77S_append_flags(pTHX_ SV *sv, U32 flags, const struct flag_to_name *start,
78 const struct flag_to_name *const end)
79{
80 do {
81 if (flags & start->flag)
82 sv_catpv(sv, start->name);
83 } while (++start < end);
84}
85
86#define append_flags(sv, f, flags) \
cd431fde 87 S_append_flags(aTHX_ (sv), (f), (flags), C_ARRAY_END(flags))
a0c2f4dd 88
0eb335df
BF		 89#define generic_pv_escape(sv,s,len,utf8) pv_escape( (sv), (s), (len), \
90 (len) * (4+UTF8_MAXBYTES) + 1, NULL, \
91 PERL_PV_ESCAPE_NONASCII | PERL_PV_ESCAPE_DWIM \
92 | ((utf8) ? PERL_PV_ESCAPE_UNI : 0) )
93
3df15adc 94/*
87cea99e 95=for apidoc pv_escape
3df15adc
YO		 96
97Escapes at most the first "count" chars of pv and puts the results into
ab3bbdeb 98dsv such that the size of the escaped string will not exceed "max" chars
9a63e366 99and will not contain any incomplete escape sequences. The number of bytes
4420a417
YO		 100escaped will be returned in the STRLEN *escaped parameter if it is not null.
101When the dsv parameter is null no escaping actually occurs, but the number
102of bytes that would be escaped were it not null will be calculated.
3df15adc 103
ab3bbdeb
YO		 104If flags contains PERL_PV_ESCAPE_QUOTE then any double quotes in the string
105will also be escaped.
3df15adc
YO		 106
107Normally the SV will be cleared before the escaped string is prepared,
ab3bbdeb
YO		 108but when PERL_PV_ESCAPE_NOCLEAR is set this will not occur.
109
e5860534 110If PERL_PV_ESCAPE_UNI is set then the input string is treated as UTF-8
ab3bbdeb 111if PERL_PV_ESCAPE_UNI_DETECT is set then the input string is scanned
e5860534 112using C<is_utf8_string()> to determine if it is UTF-8.
ab3bbdeb
YO		 113
114If PERL_PV_ESCAPE_ALL is set then all input chars will be output
681f01c2 115using C<\x01F1> style escapes, otherwise if PERL_PV_ESCAPE_NONASCII is set, only
951cbe24 116non-ASCII chars will be escaped using this style; otherwise, only chars above
681f01c2 117255 will be so escaped; other non printable chars will use octal or
72d33970
FC		 118common escaped patterns like C<\n>.
119Otherwise, if PERL_PV_ESCAPE_NOBACKSLASH
681f01c2 120then all chars below 255 will be treated as printable and
ab3bbdeb
YO		 121will be output as literals.
122
123If PERL_PV_ESCAPE_FIRSTCHAR is set then only the first char of the
72d33970 124string will be escaped, regardless of max. If the output is to be in hex,
c8536afa 125then it will be returned as a plain hex
72d33970 126sequence. Thus the output will either be a single char,
c8536afa 127an octal escape sequence, a special escape like C<\n> or a hex value.
3df15adc 128
44a2ac75 129If PERL_PV_ESCAPE_RE is set then the escape char used will be a '%' and
72d33970 130not a '\\'. This is because regexes very often contain backslashed
44a2ac75
YO		 131sequences, whereas '%' is not a particularly common character in patterns.
132
ab3bbdeb 133Returns a pointer to the escaped text as held by dsv.
3df15adc
YO		 134
135=cut
136*/
ab3bbdeb 137#define PV_ESCAPE_OCTBUFSIZE 32
ddc5bc0f 138
3967c732 139char *
ddc5bc0f 140Perl_pv_escape( pTHX_ SV *dsv, char const * const str,
ab3bbdeb
YO		 141 const STRLEN count, const STRLEN max,
142 STRLEN * const escaped, const U32 flags )
143{
61f9802b
AL		 144 const char esc = (flags & PERL_PV_ESCAPE_RE) ? '%' : '\\';
145 const char dq = (flags & PERL_PV_ESCAPE_QUOTE) ? '"' : esc;
44a2ac75 146 char octbuf[PV_ESCAPE_OCTBUFSIZE] = "%123456789ABCDF";
ab3bbdeb
YO		 147 STRLEN wrote = 0; /* chars written so far */
148 STRLEN chsize = 0; /* size of data to be written */
149 STRLEN readsize = 1; /* size of data just read */
e5860534 150 bool isuni= flags & PERL_PV_ESCAPE_UNI ? 1 : 0; /* is this UTF-8 */
ddc5bc0f 151 const char *pv = str;
61f9802b 152 const char * const end = pv + count; /* end of string */
44a2ac75 153 octbuf[0] = esc;
ab3bbdeb 154
7918f24d
NC		 155 PERL_ARGS_ASSERT_PV_ESCAPE;
156
4420a417 157 if (dsv && !(flags & PERL_PV_ESCAPE_NOCLEAR)) {
7fddd944 158 /* This won't alter the UTF-8 flag */
76f68e9b 159 sv_setpvs(dsv, "");
7fddd944 160 }
ab3bbdeb 161
ddc5bc0f 162 if ((flags & PERL_PV_ESCAPE_UNI_DETECT) && is_utf8_string((U8*)pv, count))
ab3bbdeb
YO		 163 isuni = 1;
164
165 for ( ; (pv < end && (!max || (wrote < max))) ; pv += readsize ) {
4b88fb76 166 const UV u= (isuni) ? utf8_to_uvchr_buf((U8*)pv, (U8*) end, &readsize) : (U8)*pv;
ab3bbdeb
YO		 167 const U8 c = (U8)u & 0xFF;
168
681f01c2
KW		 169 if ( ( u > 255 )
170 || (flags & PERL_PV_ESCAPE_ALL)
0eb335df 171 || (( ! isASCII(u) ) && (flags & (PERL_PV_ESCAPE_NONASCII|PERL_PV_ESCAPE_DWIM))))
681f01c2 172 {
ab3bbdeb
YO		 173 if (flags & PERL_PV_ESCAPE_FIRSTCHAR)
174 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
175 "%"UVxf, u);
176 else
177 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
0eb335df
BF		 178 ((flags & PERL_PV_ESCAPE_DWIM) && !isuni)
179 ? "%cx%02"UVxf
180 : "%cx{%02"UVxf"}", esc, u);
181
ab3bbdeb
YO		 182 } else if (flags & PERL_PV_ESCAPE_NOBACKSLASH) {
183 chsize = 1;
184 } else {
44a2ac75
YO		 185 if ( (c == dq) || (c == esc) || !isPRINT(c) ) {
186 chsize = 2;
ab3bbdeb 187 switch (c) {
44a2ac75 188
924ba076 189 case '\\' : /* FALLTHROUGH */
44a2ac75
YO		 190 case '%' : if ( c == esc ) {
191 octbuf[1] = esc;
192 } else {
193 chsize = 1;
194 }
195 break;
3df15adc
YO		 196 case '\v' : octbuf[1] = 'v'; break;
197 case '\t' : octbuf[1] = 't'; break;
198 case '\r' : octbuf[1] = 'r'; break;
199 case '\n' : octbuf[1] = 'n'; break;
200 case '\f' : octbuf[1] = 'f'; break;
44a2ac75 201 case '"' :
ab3bbdeb 202 if ( dq == '"' )
3df15adc 203 octbuf[1] = '"';
ab3bbdeb
YO		 204 else
205 chsize = 1;
44a2ac75 206 break;
3df15adc 207 default:
0eb335df
BF		 208 if ( (flags & PERL_PV_ESCAPE_DWIM) && c != '\0' ) {
209 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
210 isuni ? "%cx{%02"UVxf"}" : "%cx%02"UVxf,
211 esc, u);
212 }
213 else if ( (pv+readsize < end) && isDIGIT((U8)*(pv+readsize)) )
ab3bbdeb 214 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
44a2ac75
YO		 215 "%c%03o", esc, c);
216 else
ab3bbdeb 217 chsize = my_snprintf( octbuf, PV_ESCAPE_OCTBUFSIZE,
44a2ac75 218 "%c%o", esc, c);
ab3bbdeb
YO		 219 }
220 } else {
44a2ac75 221 chsize = 1;
ab3bbdeb 222 }
44a2ac75
YO		 223 }
224 if ( max && (wrote + chsize > max) ) {
225 break;
ab3bbdeb 226 } else if (chsize > 1) {
4420a417
YO		 227 if (dsv)
228 sv_catpvn(dsv, octbuf, chsize);
44a2ac75 229 wrote += chsize;
3df15adc 230 } else {
951cbe24
KW		 231 /* If PERL_PV_ESCAPE_NOBACKSLASH is set then non-ASCII bytes
232 can be appended raw to the dsv. If dsv happens to be
7fddd944
NC		 233 UTF-8 then we need catpvf to upgrade them for us.
234 Or add a new API call sv_catpvc(). Think about that name, and
235 how to keep it clear that it's unlike the s of catpvs, which is
951cbe24 236 really an array of octets, not a string. */
4420a417
YO		 237 if (dsv)
238 Perl_sv_catpvf( aTHX_ dsv, "%c", c);
3df15adc
YO		 239 wrote++;
240 }
ab3bbdeb
YO		 241 if ( flags & PERL_PV_ESCAPE_FIRSTCHAR )
242 break;
3967c732 243 }
ab3bbdeb
YO		 244 if (escaped != NULL)
245 *escaped= pv - str;
4420a417 246 return dsv ? SvPVX(dsv) : NULL;
ab3bbdeb
YO		 247}
248/*
87cea99e 249=for apidoc pv_pretty
ab3bbdeb
YO		 250
251Converts a string into something presentable, handling escaping via
95b611b0 252pv_escape() and supporting quoting and ellipses.
ab3bbdeb
YO		 253
254If the PERL_PV_PRETTY_QUOTE flag is set then the result will be
72d33970 255double quoted with any double quotes in the string escaped. Otherwise
ab3bbdeb
YO		 256if the PERL_PV_PRETTY_LTGT flag is set then the result be wrapped in
257angle brackets.
6cba11c8 258
95b611b0
RGS		 259If the PERL_PV_PRETTY_ELLIPSES flag is set and not all characters in
260string were output then an ellipsis C<...> will be appended to the
72d33970 261string. Note that this happens AFTER it has been quoted.
6cba11c8 262
ab3bbdeb 263If start_color is non-null then it will be inserted after the opening
72d33970 264quote (if there is one) but before the escaped text. If end_color
ab3bbdeb 265is non-null then it will be inserted after the escaped text but before
95b611b0 266any quotes or ellipses.
ab3bbdeb
YO		 267
268Returns a pointer to the prettified text as held by dsv.
6cba11c8 269
ab3bbdeb
YO		 270=cut
271*/
272
273char *
ddc5bc0f
YO		 274Perl_pv_pretty( pTHX_ SV *dsv, char const * const str, const STRLEN count,
275 const STRLEN max, char const * const start_color, char const * const end_color,
ab3bbdeb
YO		 276 const U32 flags )
277{
3602166e
FC		 278 const U8 *quotes = (U8*)((flags & PERL_PV_PRETTY_QUOTE) ? "\"\"" :
279 (flags & PERL_PV_PRETTY_LTGT) ? "<>" : NULL);
ab3bbdeb 280 STRLEN escaped;
4420a417
YO		 281 STRLEN max_adjust= 0;
282 STRLEN orig_cur;
7918f24d
NC		 283
284 PERL_ARGS_ASSERT_PV_PRETTY;
285
881a015e 286 if (!(flags & PERL_PV_PRETTY_NOCLEAR)) {
4420a417
YO		 287 /* This won't alter the UTF-8 flag */
288 sv_setpvs(dsv, "");
881a015e 289 }
4420a417 290 orig_cur= SvCUR(dsv);
881a015e 291
4420a417
YO		 292 if ( quotes )
293 Perl_sv_catpvf(aTHX_ dsv, "%c", quotes[0]);
ab3bbdeb
YO		 294
295 if ( start_color != NULL )
76f68e9b 296 sv_catpv(dsv, start_color);
4420a417
YO		 297
298 if ((flags & PERL_PV_PRETTY_EXACTSIZE)) {
299 if (quotes)
300 max_adjust += 2;
301 assert(max > max_adjust);
302 pv_escape( NULL, str, count, max - max_adjust, &escaped, flags );
303 if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
304 max_adjust += 3;
305 assert(max > max_adjust);
306 }
307
308 pv_escape( dsv, str, count, max - max_adjust, &escaped, flags | PERL_PV_ESCAPE_NOCLEAR );
309
ab3bbdeb 310 if ( end_color != NULL )
76f68e9b 311 sv_catpv(dsv, end_color);
ab3bbdeb 312
4420a417
YO		 313 if ( quotes )
314 Perl_sv_catpvf(aTHX_ dsv, "%c", quotes[1]);
ab3bbdeb 315
95b611b0 316 if ( (flags & PERL_PV_PRETTY_ELLIPSES) && ( escaped < count ) )
76f68e9b 317 sv_catpvs(dsv, "...");
4420a417
YO		 318
319 if ((flags & PERL_PV_PRETTY_EXACTSIZE)) {
320 while( SvCUR(dsv) - orig_cur < max )
321 sv_catpvs(dsv," ");
322 }
ab3bbdeb 323
3df15adc
YO		 324 return SvPVX(dsv);
325}
326
327/*
328=for apidoc pv_display
329
3df15adc 330Similar to
3967c732 331
3df15adc
YO		 332 pv_escape(dsv,pv,cur,pvlim,PERL_PV_ESCAPE_QUOTE);
333
334except that an additional "\0" will be appended to the string when
335len > cur and pv[cur] is "\0".
336
337Note that the final string may be up to 7 chars longer than pvlim.
338
339=cut
340*/
341
342char *
343Perl_pv_display(pTHX_ SV *dsv, const char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
344{
7918f24d
NC		 345 PERL_ARGS_ASSERT_PV_DISPLAY;
346
ddc5bc0f 347 pv_pretty( dsv, pv, cur, pvlim, NULL, NULL, PERL_PV_PRETTY_DUMP);
3df15adc 348 if (len > cur && pv[cur] == '\0')
76f68e9b 349 sv_catpvs( dsv, "\\0");
e6abe6d8
JH		 350 return SvPVX(dsv);
351}
352
353char *
864dbfa3 354Perl_sv_peek(pTHX_ SV *sv)
3967c732 355{
27da23d5 356 dVAR;
aec46f14 357 SV * const t = sv_newmortal();
3967c732 358 int unref = 0;
5357ca29 359 U32 type;
3967c732 360
76f68e9b 361 sv_setpvs(t, "");
3967c732
JD		 362 retry:
363 if (!sv) {
364 sv_catpv(t, "VOID");
365 goto finish;
366 }
8ee91b45
YO		 367 else if (sv == (const SV *)0x55555555 || ((char)SvTYPE(sv)) == 'U') {
368 /* detect data corruption under memory poisoning */
3967c732
JD		 369 sv_catpv(t, "WILD");
370 goto finish;
371 }
7996736c 372 else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
3967c732
JD		 373 if (sv == &PL_sv_undef) {
374 sv_catpv(t, "SV_UNDEF");
375 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
376 SVs_GMG|SVs_SMG|SVs_RMG)) &&
377 SvREADONLY(sv))
378 goto finish;
379 }
380 else if (sv == &PL_sv_no) {
381 sv_catpv(t, "SV_NO");
382 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
383 SVs_GMG|SVs_SMG|SVs_RMG)) &&
384 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
385 SVp_POK|SVp_NOK)) &&
386 SvCUR(sv) == 0 &&
659c4b96 387 SvNVX(sv) == 0.0)
3967c732
JD		 388 goto finish;
389 }
7996736c 390 else if (sv == &PL_sv_yes) {
3967c732
JD		 391 sv_catpv(t, "SV_YES");
392 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
393 SVs_GMG|SVs_SMG|SVs_RMG)) &&
394 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
395 SVp_POK|SVp_NOK)) &&
396 SvCUR(sv) == 1 &&
b15aece3 397 SvPVX_const(sv) && *SvPVX_const(sv) == '1' &&
659c4b96 398 SvNVX(sv) == 1.0)
3967c732 399 goto finish;
7996736c
MHM		 400 }
401 else {
402 sv_catpv(t, "SV_PLACEHOLDER");
403 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
404 SVs_GMG|SVs_SMG|SVs_RMG)) &&
405 SvREADONLY(sv))
406 goto finish;
3967c732
JD		 407 }
408 sv_catpv(t, ":");
409 }
410 else if (SvREFCNT(sv) == 0) {
411 sv_catpv(t, "(");
412 unref++;
413 }
a3b4c9c6
DM		 414 else if (DEBUG_R_TEST_) {
415 int is_tmp = 0;
e8eb279c 416 SSize_t ix;
a3b4c9c6
DM		 417 /* is this SV on the tmps stack? */
418 for (ix=PL_tmps_ix; ix>=0; ix--) {
419 if (PL_tmps_stack[ix] == sv) {
420 is_tmp = 1;
421 break;
422 }
423 }
424 if (SvREFCNT(sv) > 1)
425 Perl_sv_catpvf(aTHX_ t, "<%"UVuf"%s>", (UV)SvREFCNT(sv),
426 is_tmp ? "T" : "");
427 else if (is_tmp)
428 sv_catpv(t, "<T>");
04932ac8
DM		 429 }
430
3967c732
JD		 431 if (SvROK(sv)) {
432 sv_catpv(t, "\\");
433 if (SvCUR(t) + unref > 10) {
b162af07 434 SvCUR_set(t, unref + 3);
3967c732
JD		 435 *SvEND(t) = '\0';
436 sv_catpv(t, "...");
437 goto finish;
438 }
ad64d0ec 439 sv = SvRV(sv);
3967c732
JD		 440 goto retry;
441 }
5357ca29
NC		 442 type = SvTYPE(sv);
443 if (type == SVt_PVCV) {
0eb335df
BF		 444 SV * const tmp = newSVpvs_flags("", SVs_TEMP);
445 GV* gvcv = CvGV(sv);
c53e4eb5 446 Perl_sv_catpvf(aTHX_ t, "CV(%s)", gvcv
0eb335df
BF		 447 ? generic_pv_escape( tmp, GvNAME(gvcv), GvNAMELEN(gvcv), GvNAMEUTF8(gvcv))
448 : "");
3967c732 449 goto finish;
5357ca29
NC		 450 } else if (type < SVt_LAST) {
451 sv_catpv(t, svshorttypenames[type]);
3967c732 452
5357ca29
NC		 453 if (type == SVt_NULL)
454 goto finish;
455 } else {
456 sv_catpv(t, "FREED");
3967c732 457 goto finish;
3967c732
JD		 458 }
459
460 if (SvPOKp(sv)) {
b15aece3 461 if (!SvPVX_const(sv))
3967c732
JD		 462 sv_catpv(t, "(null)");
463 else {
17605be7 464 SV * const tmp = newSVpvs("");
3967c732 465 sv_catpv(t, "(");
5115136b
DM		 466 if (SvOOK(sv)) {
467 STRLEN delta;
468 SvOOK_offset(sv, delta);
469 Perl_sv_catpvf(aTHX_ t, "[%s]", pv_display(tmp, SvPVX_const(sv)-delta, delta, 0, 127));
470 }
b15aece3 471 Perl_sv_catpvf(aTHX_ t, "%s)", pv_display(tmp, SvPVX_const(sv), SvCUR(sv), SvLEN(sv), 127));
32639b87 472 if (SvUTF8(sv))
b2ff9928 473 Perl_sv_catpvf(aTHX_ t, " [UTF8 \"%s\"]",
e9569a7a 474 sv_uni_display(tmp, sv, 6 * SvCUR(sv),
c728cb41 475 UNI_DISPLAY_QQ));
17605be7 476 SvREFCNT_dec_NN(tmp);
3967c732
JD		 477 }
478 }
479 else if (SvNOKp(sv)) {
e54dc35b 480 STORE_NUMERIC_LOCAL_SET_STANDARD();
1779d84d 481 Perl_sv_catpvf(aTHX_ t, "(%"NVgf")",SvNVX(sv));
e54dc35b 482 RESTORE_NUMERIC_LOCAL();
3967c732 483 }
57def98f 484 else if (SvIOKp(sv)) {
cf2093f6 485 if (SvIsUV(sv))
57def98f 486 Perl_sv_catpvf(aTHX_ t, "(%"UVuf")", (UV)SvUVX(sv));
cf2093f6 487 else
57def98f 488 Perl_sv_catpvf(aTHX_ t, "(%"IVdf")", (IV)SvIVX(sv));
25da4f38 489 }
3967c732
JD		 490 else
491 sv_catpv(t, "()");
2ef28da1 492
3967c732 493 finish:
61f9802b
AL		 494 while (unref--)
495 sv_catpv(t, ")");
9adb2837 496 if (TAINTING_get && sv && SvTAINTED(sv))
59b714e2 497 sv_catpv(t, " [tainted]");
8b6b16e7 498 return SvPV_nolen(t);
3967c732
JD		 499}
500
36b1c95c
MH		 501/*
502=head1 Debugging Utilities
503*/
504
505void
506Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
507{
508 va_list args;
509 PERL_ARGS_ASSERT_DUMP_INDENT;
510 va_start(args, pat);
511 dump_vindent(level, file, pat, &args);
512 va_end(args);
513}
514
515void
516Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
517{
36b1c95c
MH		 518 PERL_ARGS_ASSERT_DUMP_VINDENT;
519 PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
520 PerlIO_vprintf(file, pat, *args);
521}
522
523/*
524=for apidoc dump_all
525
526Dumps the entire optree of the current program starting at C<PL_main_root> to
72d33970
FC		 527C<STDERR>. Also dumps the optrees for all visible subroutines in
528C<PL_defstash>.
36b1c95c
MH		 529
530=cut
531*/
532
533void
534Perl_dump_all(pTHX)
535{
536 dump_all_perl(FALSE);
537}
538
539void
540Perl_dump_all_perl(pTHX_ bool justperl)
541{
36b1c95c
MH		 542 PerlIO_setlinebuf(Perl_debug_log);
543 if (PL_main_root)
544 op_dump(PL_main_root);
545 dump_packsubs_perl(PL_defstash, justperl);
546}
547
548/*
549=for apidoc dump_packsubs
550
551Dumps the optrees for all visible subroutines in C<stash>.
552
553=cut
554*/
555
556void
557Perl_dump_packsubs(pTHX_ const HV *stash)
558{
559 PERL_ARGS_ASSERT_DUMP_PACKSUBS;
560 dump_packsubs_perl(stash, FALSE);
561}
562
563void
564Perl_dump_packsubs_perl(pTHX_ const HV *stash, bool justperl)
565{
36b1c95c
MH		 566 I32 i;
567
568 PERL_ARGS_ASSERT_DUMP_PACKSUBS_PERL;
569
570 if (!HvARRAY(stash))
571 return;
572 for (i = 0; i <= (I32) HvMAX(stash); i++) {
573 const HE *entry;
574 for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
575 const GV * const gv = (const GV *)HeVAL(entry);
576 if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
577 continue;
578 if (GvCVu(gv))
579 dump_sub_perl(gv, justperl);
580 if (GvFORM(gv))
581 dump_form(gv);
582 if (HeKEY(entry)[HeKLEN(entry)-1] == ':') {
583 const HV * const hv = GvHV(gv);
584 if (hv && (hv != PL_defstash))
585 dump_packsubs_perl(hv, justperl); /* nested package */
586 }
587 }
588 }
589}
590
591void
592Perl_dump_sub(pTHX_ const GV *gv)
593{
594 PERL_ARGS_ASSERT_DUMP_SUB;
595 dump_sub_perl(gv, FALSE);
596}
597
598void
599Perl_dump_sub_perl(pTHX_ const GV *gv, bool justperl)
600{
0eb335df
BF		 601 STRLEN len;
602 SV * const sv = newSVpvs_flags("", SVs_TEMP);
603 SV *tmpsv;
604 const char * name;
36b1c95c
MH		 605
606 PERL_ARGS_ASSERT_DUMP_SUB_PERL;
607
608 if (justperl && (CvISXSUB(GvCV(gv)) || !CvROOT(GvCV(gv))))
609 return;
610
0eb335df 611 tmpsv = newSVpvs_flags("", SVs_TEMP);
36b1c95c 612 gv_fullname3(sv, gv, NULL);
0eb335df
BF		 613 name = SvPV_const(sv, len);
614 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nSUB %s = ",
615 generic_pv_escape(tmpsv, name, len, SvUTF8(sv)));
36b1c95c
MH		 616 if (CvISXSUB(GvCV(gv)))
617 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "(xsub 0x%"UVxf" %d)\n",
618 PTR2UV(CvXSUB(GvCV(gv))),
619 (int)CvXSUBANY(GvCV(gv)).any_i32);
620 else if (CvROOT(GvCV(gv)))
621 op_dump(CvROOT(GvCV(gv)));
622 else
623 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
624}
625
626void
627Perl_dump_form(pTHX_ const GV *gv)
628{
629 SV * const sv = sv_newmortal();
630
631 PERL_ARGS_ASSERT_DUMP_FORM;
632
633 gv_fullname3(sv, gv, NULL);
634 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nFORMAT %s = ", SvPVX_const(sv));
635 if (CvROOT(GvFORM(gv)))
636 op_dump(CvROOT(GvFORM(gv)));
637 else
638 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
639}
640
641void
642Perl_dump_eval(pTHX)
643{
36b1c95c
MH		 644 op_dump(PL_eval_root);
645}
646
3967c732 647void
6867be6d 648Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, const PMOP *pm)
3967c732
JD		 649{
650 char ch;
651
7918f24d
NC		 652 PERL_ARGS_ASSERT_DO_PMOP_DUMP;
653
3967c732 654 if (!pm) {
cea2e8a9 655 Perl_dump_indent(aTHX_ level, file, "{}\n");
3967c732
JD		 656 return;
657 }
cea2e8a9 658 Perl_dump_indent(aTHX_ level, file, "{\n");
3967c732
JD		 659 level++;
660 if (pm->op_pmflags & PMf_ONCE)
661 ch = '?';
662 else
663 ch = '/';
aaa362c4 664 if (PM_GETRE(pm))
f87fee25
FC		 665 Perl_dump_indent(aTHX_ level, file, "PMf_PRE %c%.*s%c%s\n",
666 ch,(int)RX_PRELEN(PM_GETRE(pm)), RX_PRECOMP(PM_GETRE(pm)), ch,
3967c732
JD		 667 (pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
668 else
cea2e8a9 669 Perl_dump_indent(aTHX_ level, file, "PMf_PRE (RUNTIME)\n");
20e98b0f 670 if (pm->op_type != OP_PUSHRE && pm->op_pmreplrootu.op_pmreplroot) {
cea2e8a9 671 Perl_dump_indent(aTHX_ level, file, "PMf_REPL = ");
20e98b0f 672 op_dump(pm->op_pmreplrootu.op_pmreplroot);
3967c732 673 }
68e2671b 674 if (pm->op_code_list) {
867940b8
DM		 675 if (pm->op_pmflags & PMf_CODELIST_PRIVATE) {
676 Perl_dump_indent(aTHX_ level, file, "CODE_LIST =\n");
677 do_op_dump(level, file, pm->op_code_list);
678 }
679 else
680 Perl_dump_indent(aTHX_ level, file, "CODE_LIST = 0x%"UVxf"\n",
681 PTR2UV(pm->op_code_list));
68e2671b 682 }
07bc277f 683 if (pm->op_pmflags || (PM_GETRE(pm) && RX_CHECK_SUBSTR(PM_GETRE(pm)))) {
4199688e 684 SV * const tmpsv = pm_description(pm);
b15aece3 685 Perl_dump_indent(aTHX_ level, file, "PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
5f954473 686 SvREFCNT_dec_NN(tmpsv);
3967c732
JD		 687 }
688
cea2e8a9 689 Perl_dump_indent(aTHX_ level-1, file, "}\n");
3967c732
JD		 690}
691
a0c2f4dd
NC		 692const struct flag_to_name pmflags_flags_names[] = {
693 {PMf_CONST, ",CONST"},
694 {PMf_KEEP, ",KEEP"},
695 {PMf_GLOBAL, ",GLOBAL"},
696 {PMf_CONTINUE, ",CONTINUE"},
697 {PMf_RETAINT, ",RETAINT"},
698 {PMf_EVAL, ",EVAL"},
699 {PMf_NONDESTRUCT, ",NONDESTRUCT"},
d63c20f2 700 {PMf_HAS_CV, ",HAS_CV"},
2a92a973
DM		 701 {PMf_CODELIST_PRIVATE, ",CODELIST_PRIVATE"},
702 {PMf_IS_QR, ",IS_QR"}
a0c2f4dd
NC		 703};
704
b9ac451d 705static SV *
4199688e
AL		 706S_pm_description(pTHX_ const PMOP *pm)
707{
708 SV * const desc = newSVpvs("");
61f9802b 709 const REGEXP * const regex = PM_GETRE(pm);
4199688e
AL		 710 const U32 pmflags = pm->op_pmflags;
711
7918f24d
NC		 712 PERL_ARGS_ASSERT_PM_DESCRIPTION;
713
4199688e
AL		 714 if (pmflags & PMf_ONCE)
715 sv_catpv(desc, ",ONCE");
c737faaf
YO		 716#ifdef USE_ITHREADS
717 if (SvREADONLY(PL_regex_pad[pm->op_pmoffset]))
718 sv_catpv(desc, ":USED");
719#else
720 if (pmflags & PMf_USED)
721 sv_catpv(desc, ":USED");
722#endif
c737faaf 723
68d4833d 724 if (regex) {
284167a5 725 if (RX_ISTAINTED(regex))
68d4833d 726 sv_catpv(desc, ",TAINTED");
07bc277f 727 if (RX_CHECK_SUBSTR(regex)) {
e3e400ec 728 if (!(RX_INTFLAGS(regex) & PREGf_NOSCAN))
68d4833d 729 sv_catpv(desc, ",SCANFIRST");
07bc277f 730 if (RX_EXTFLAGS(regex) & RXf_CHECK_ALL)
68d4833d
AB		 731 sv_catpv(desc, ",ALL");
732 }
dbc200c5
YO		 733 if (RX_EXTFLAGS(regex) & RXf_SKIPWHITE)
734 sv_catpv(desc, ",SKIPWHITE");
4199688e 735 }
68d4833d 736
a0c2f4dd 737 append_flags(desc, pmflags, pmflags_flags_names);
4199688e
AL		 738 return desc;
739}
740
3967c732 741void
864dbfa3 742Perl_pmop_dump(pTHX_ PMOP *pm)
3967c732
JD		 743{
744 do_pmop_dump(0, Perl_debug_log, pm);
79072805
LW		 745}
746
b6f05621
DM		 747/* Return a unique integer to represent the address of op o.
748 * If it already exists in PL_op_sequence, just return it;
749 * otherwise add it.
750 * *** Note that this isn't thread-safe */
294b3b39 751
2814eb74 752STATIC UV
0bd48802 753S_sequence_num(pTHX_ const OP *o)
2814eb74 754{
27da23d5 755 dVAR;
2814eb74
PJ		 756 SV *op,
757 **seq;
93524f2b 758 const char *key;
2814eb74 759 STRLEN len;
b6f05621
DM		 760 if (!o)
761 return 0;
c0fd1b42 762 op = newSVuv(PTR2UV(o));
b6f05621 763 sv_2mortal(op);
93524f2b 764 key = SvPV_const(op, len);
b6f05621
DM		 765 if (!PL_op_sequence)
766 PL_op_sequence = newHV();
767 seq = hv_fetch(PL_op_sequence, key, len, 0);
768 if (seq)
769 return SvUV(*seq);
770 (void)hv_store(PL_op_sequence, key, len, newSVuv(++PL_op_seq), 0);
771 return PL_op_seq;
2814eb74
PJ		 772}
773
f3574cc6
DM		 774
775
776
777
a0c2f4dd
NC		 778const struct flag_to_name op_flags_names[] = {
779 {OPf_KIDS, ",KIDS"},
780 {OPf_PARENS, ",PARENS"},
a0c2f4dd
NC		 781 {OPf_REF, ",REF"},
782 {OPf_MOD, ",MOD"},
65cccc5e 783 {OPf_STACKED, ",STACKED"},
a0c2f4dd
NC		 784 {OPf_SPECIAL, ",SPECIAL"}
785};
786
75a6ad4a 787
79072805 788void
6867be6d 789Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, const OP *o)
79072805 790{
2814eb74 791 UV seq;
e15d5972
AL		 792 const OPCODE optype = o->op_type;
793
7918f24d
NC		 794 PERL_ARGS_ASSERT_DO_OP_DUMP;
795
cea2e8a9 796 Perl_dump_indent(aTHX_ level, file, "{\n");
3967c732 797 level++;
0bd48802 798 seq = sequence_num(o);
2814eb74 799 if (seq)
f5992bc4 800 PerlIO_printf(file, "%-4"UVuf, seq);
93a17b20 801 else
b6f05621 802 PerlIO_printf(file, "????");
c8db6e60
JH		 803 PerlIO_printf(file,
804 "%*sTYPE = %s ===> ",
53e06cf0 805 (int)(PL_dumpindent*level-4), "", OP_NAME(o));
2814eb74 806 if (o->op_next)
b6f05621
DM		 807 PerlIO_printf(file,
808 o->op_type == OP_NULL ? "(%"UVuf")\n" : "%"UVuf"\n",
666ea192 809 sequence_num(o->op_next));
79072805 810 else
e75ab6ad 811 PerlIO_printf(file, "NULL\n");
11343788 812 if (o->op_targ) {
e15d5972 813 if (optype == OP_NULL) {
cea2e8a9 814 Perl_dump_indent(aTHX_ level, file, " (was %s)\n", PL_op_name[o->op_targ]);
ae7d165c 815 }
8990e307 816 else
894356b3 817 Perl_dump_indent(aTHX_ level, file, "TARG = %ld\n", (long)o->op_targ);
8990e307 818 }
748a9306 819#ifdef DUMPADDR
57def98f 820 Perl_dump_indent(aTHX_ level, file, "ADDR = 0x%"UVxf" => 0x%"UVxf"\n", (UV)o, (UV)o->op_next);
79072805 821#endif
a7fd8ef6 822
760f8c06
DM		 823 if (o->op_flags || o->op_slabbed || o->op_savefree || o->op_static) {
824 SV * const tmpsv = newSVpvs("");
825 switch (o->op_flags & OPf_WANT) {
826 case OPf_WANT_VOID:
827 sv_catpv(tmpsv, ",VOID");
828 break;
829 case OPf_WANT_SCALAR:
830 sv_catpv(tmpsv, ",SCALAR");
831 break;
832 case OPf_WANT_LIST:
833 sv_catpv(tmpsv, ",LIST");
834 break;
835 default:
836 sv_catpv(tmpsv, ",UNKNOWN");
837 break;
838 }
839 append_flags(tmpsv, o->op_flags, op_flags_names);
840 if (o->op_slabbed) sv_catpvs(tmpsv, ",SLABBED");
841 if (o->op_savefree) sv_catpvs(tmpsv, ",SAVEFREE");
842 if (o->op_static) sv_catpvs(tmpsv, ",STATIC");
843 if (o->op_folded) sv_catpvs(tmpsv, ",FOLDED");
844 if (o->op_lastsib) sv_catpvs(tmpsv, ",LASTSIB");
845 Perl_dump_indent(aTHX_ level, file, "FLAGS = (%s)\n",
846 SvCUR(tmpsv) ? SvPVX_const(tmpsv) + 1 : "");
847 }
848
849 if (o->op_private) {
f3574cc6
DM		 850 U16 oppriv = o->op_private;
851 I16 op_ix = PL_op_private_bitdef_ix[o->op_type];
852 SV * tmpsv = NULL;
853
854 if (op_ix != -1) {
855 U16 stop = 0;
856 tmpsv = newSVpvs("");
857 for (; !stop; op_ix++) {
858 U16 entry = PL_op_private_bitdefs[op_ix];
859 U16 bit = (entry >> 2) & 7;
860 U16 ix = entry >> 5;
861
862 stop = (entry & 1);
863
864 if (entry & 2) {
865 /* bitfield */
866 I16 const *p = &PL_op_private_bitfields[ix];
867 U16 bitmin = (U16) *p++;
868 I16 label = *p++;
869 I16 enum_label;
870 U16 mask = 0;
871 U16 i;
872 U16 val;
873
874 for (i = bitmin; i<= bit; i++)
875 mask |= (1<<i);
876 bit = bitmin;
877 val = (oppriv & mask);
878
879 if ( label != -1
880 && PL_op_private_labels[label] == '-'
881 && PL_op_private_labels[label+1] == '\0'
882 )
883 /* display as raw number */
884 continue;
885
886 oppriv -= val;
887 val >>= bit;
888 enum_label = -1;
889 while (*p != -1) {
890 if (val == *p++) {
891 enum_label = *p;
892 break;
893 }
894 p++;
895 }
896 if (val == 0 && enum_label == -1)
897 /* don't display anonymous zero values */
898 continue;
899
900 sv_catpv(tmpsv, ",");
901 if (label != -1) {
902 sv_catpv(tmpsv, &PL_op_private_labels[label]);
903 sv_catpv(tmpsv, "=");
904 }
905 sv_catpv(tmpsv, &PL_op_private_labels[enum_label]);
906
907 }
908 else {
909 /* bit flag */
910 if ( oppriv & (1<<bit)
911 && !(PL_op_private_labels[ix] == '-'
912 && PL_op_private_labels[ix+1] == '\0'))
913 {
914 oppriv -= (1<<bit);
915 sv_catpv(tmpsv, ",");
916 sv_catpv(tmpsv, &PL_op_private_labels[ix]);
917 }
760f8c06 918 }
760f8c06 919 }
f3574cc6
DM		 920 if (oppriv) {
921 sv_catpv(tmpsv, ",");
922 Perl_sv_catpvf(aTHX_ tmpsv, "0x%"UVxf, (UV)oppriv);
760f8c06
DM		 923 }
924 }
f3574cc6 925 if (tmpsv && SvCUR(tmpsv)) {
760f8c06
DM		 926 Perl_dump_indent(aTHX_ level, file, "PRIVATE = (%s)\n", SvPVX_const(tmpsv) + 1);
927 } else
928 Perl_dump_indent(aTHX_ level, file, "PRIVATE = (0x%"UVxf")\n",
929 (UV)oppriv);
930 }
931
e15d5972 932 switch (optype) {
971a9dd3 933 case OP_AELEMFAST:
93a17b20 934 case OP_GVSV:
79072805 935 case OP_GV:
971a9dd3 936#ifdef USE_ITHREADS
c803eecc 937 Perl_dump_indent(aTHX_ level, file, "PADIX = %" IVdf "\n", (IV)cPADOPo->op_padix);
971a9dd3 938#else
1640e9f0 939 if ( ! (o->op_flags & OPf_SPECIAL)) { /* not lexical */
38c076c7 940 if (cSVOPo->op_sv) {
0eb335df
BF		 941 STRLEN len;
942 const char * name;
943 SV * const tmpsv = newSVpvs_flags("", SVs_TEMP);
944 SV * const tmpsv2 = newSVpvs_flags("", SVs_TEMP);
159b6efe 945 gv_fullname3(tmpsv, MUTABLE_GV(cSVOPo->op_sv), NULL);
0eb335df 946 name = SvPV_const(tmpsv, len);
8b6b16e7 947 Perl_dump_indent(aTHX_ level, file, "GV = %s\n",
0eb335df 948 generic_pv_escape( tmpsv2, name, len, SvUTF8(tmpsv)));
38c076c7
DM		 949 }
950 else
951 Perl_dump_indent(aTHX_ level, file, "GV = NULL\n");
378cc40b 952 }
971a9dd3 953#endif
79072805 954 break;
fedf30e1
DM		 955
956 case OP_MULTIDEREF:
957 {
958 UNOP_AUX_item *items = cUNOP_AUXo->op_aux;
959 UV i, count = items[-1].uv;
960
961 Perl_dump_indent(aTHX_ level, file, "ARGS = \n");
962 for (i=0; i < count; i++)
963 Perl_dump_indent(aTHX_ level+1, file, "%"UVuf" => 0x%"UVxf"\n",
964 i, items[i].uv);
965 }
966
79072805 967 case OP_CONST:
996c9baa 968 case OP_HINTSEVAL:
f5d5a27c 969 case OP_METHOD_NAMED:
7d6c333c 970 case OP_METHOD_SUPER:
810bd8b7 971 case OP_METHOD_REDIR:
972 case OP_METHOD_REDIR_SUPER:
b6a15bc5
DM		 973#ifndef USE_ITHREADS
974 /* with ITHREADS, consts are stored in the pad, and the right pad
975 * may not be active here, so skip */
b46e009d 976 Perl_dump_indent(aTHX_ level, file, "SV = %s\n", SvPEEK(cMETHOPx_meth(o)));
b6a15bc5 977#endif
79072805 978 break;
5e412b02
FC		 979 case OP_NULL:
980 if (o->op_targ != OP_NEXTSTATE && o->op_targ != OP_DBSTATE)
981 break;
982 /* FALLTHROUGH */
93a17b20
LW		 983 case OP_NEXTSTATE:
984 case OP_DBSTATE:
57843af0 985 if (CopLINE(cCOPo))
f5992bc4 986 Perl_dump_indent(aTHX_ level, file, "LINE = %"UVuf"\n",
9d98dee5 987 (UV)CopLINE(cCOPo));
0eb335df
BF		 988 if (CopSTASHPV(cCOPo)) {
989 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
990 HV *stash = CopSTASH(cCOPo);
991 const char * const hvname = HvNAME_get(stash);
992
ed094faf 993 Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
0eb335df
BF		 994 generic_pv_escape(tmpsv, hvname,
995 HvNAMELEN(stash), HvNAMEUTF8(stash)));
996 }
997 if (CopLABEL(cCOPo)) {
998 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
999 STRLEN label_len;
1000 U32 label_flags;
1001 const char *label = CopLABEL_len_flags(cCOPo,
1002 &label_len, &label_flags);
1003 Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
1004 generic_pv_escape( tmpsv, label, label_len,
1005 (label_flags & SVf_UTF8)));
1006 }
7fa99c80 1007 Perl_dump_indent(aTHX_ level, file, "SEQ = %u\n",
947a9e0f 1008 (unsigned int)cCOPo->cop_seq);
79072805
LW		 1009 break;
1010 case OP_ENTERLOOP:
cea2e8a9 1011 Perl_dump_indent(aTHX_ level, file, "REDO ===> ");
11343788 1012 if (cLOOPo->op_redoop)
f5992bc4 1013 PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_redoop));
79072805 1014 else
3967c732 1015 PerlIO_printf(file, "DONE\n");
cea2e8a9 1016 Perl_dump_indent(aTHX_ level, file, "NEXT ===> ");
11343788 1017 if (cLOOPo->op_nextop)
f5992bc4 1018 PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_nextop));
79072805 1019 else
3967c732 1020 PerlIO_printf(file, "DONE\n");
cea2e8a9 1021 Perl_dump_indent(aTHX_ level, file, "LAST ===> ");
11343788 1022 if (cLOOPo->op_lastop)
f5992bc4 1023 PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOOPo->op_lastop));
79072805 1024 else
3967c732 1025 PerlIO_printf(file, "DONE\n");
79072805
LW		 1026 break;
1027 case OP_COND_EXPR:
1a67a97c 1028 case OP_RANGE:
a0d0e21e 1029 case OP_MAPWHILE:
79072805
LW		 1030 case OP_GREPWHILE:
1031 case OP_OR:
1032 case OP_AND:
cea2e8a9 1033 Perl_dump_indent(aTHX_ level, file, "OTHER ===> ");
11343788 1034 if (cLOGOPo->op_other)
f5992bc4 1035 PerlIO_printf(file, "%"UVuf"\n", sequence_num(cLOGOPo->op_other));
79072805 1036 else
3967c732 1037 PerlIO_printf(file, "DONE\n");
79072805
LW		 1038 break;
1039 case OP_PUSHRE:
1040 case OP_MATCH:
8782bef2 1041 case OP_QR:
79072805 1042 case OP_SUBST:
3967c732 1043 do_pmop_dump(level, file, cPMOPo);
79072805 1044 break;
7934575e
GS		 1045 case OP_LEAVE:
1046 case OP_LEAVEEVAL:
1047 case OP_LEAVESUB:
1048 case OP_LEAVESUBLV:
1049 case OP_LEAVEWRITE:
1050 case OP_SCOPE:
1051 if (o->op_private & OPpREFCOUNTED)
1052 Perl_dump_indent(aTHX_ level, file, "REFCNT = %"UVuf"\n", (UV)o->op_targ);
1053 break;
a0d0e21e
LW		 1054 default:
1055 break;
79072805 1056 }
11343788 1057 if (o->op_flags & OPf_KIDS) {
79072805 1058 OP *kid;
e6dae479 1059 for (kid = cUNOPo->op_first; kid; kid = OpSIBLING(kid))
3967c732 1060 do_op_dump(level, file, kid);
8d063cd8 1061 }
cea2e8a9 1062 Perl_dump_indent(aTHX_ level-1, file, "}\n");
3967c732
JD		 1063}
1064
36b1c95c
MH		 1065/*
1066=for apidoc op_dump
1067
1068Dumps the optree starting at OP C<o> to C<STDERR>.
1069
1070=cut
1071*/
1072
3967c732 1073void
6867be6d 1074Perl_op_dump(pTHX_ const OP *o)
3967c732 1075{
7918f24d 1076 PERL_ARGS_ASSERT_OP_DUMP;
3967c732 1077 do_op_dump(0, Perl_debug_log, o);
8d063cd8
LW		 1078}
1079
8adcabd8 1080void
864dbfa3 1081Perl_gv_dump(pTHX_ GV *gv)
378cc40b 1082{
0eb335df
BF		 1083 STRLEN len;
1084 const char* name;
1085 SV *sv, *tmp = newSVpvs_flags("", SVs_TEMP);
1086
378cc40b 1087
7918f24d
NC		 1088 PERL_ARGS_ASSERT_GV_DUMP;
1089
79072805 1090 if (!gv) {
760ac839 1091 PerlIO_printf(Perl_debug_log, "{}\n");
378cc40b
LW		 1092 return;
1093 }
8990e307 1094 sv = sv_newmortal();
760ac839 1095 PerlIO_printf(Perl_debug_log, "{\n");
bd61b366 1096 gv_fullname3(sv, gv, NULL);
0eb335df
BF		 1097 name = SvPV_const(sv, len);
1098 Perl_dump_indent(aTHX_ 1, Perl_debug_log, "GV_NAME = %s",
1099 generic_pv_escape( tmp, name, len, SvUTF8(sv) ));
79072805 1100 if (gv != GvEGV(gv)) {
bd61b366 1101 gv_efullname3(sv, GvEGV(gv), NULL);
0eb335df
BF		 1102 name = SvPV_const(sv, len);
1103 Perl_dump_indent(aTHX_ 1, Perl_debug_log, "-> %s",
1104 generic_pv_escape( tmp, name, len, SvUTF8(sv) ));
8adcabd8 1105 }
3967c732 1106 PerlIO_putc(Perl_debug_log, '\n');
cea2e8a9 1107 Perl_dump_indent(aTHX_ 0, Perl_debug_log, "}\n");
8d063cd8
LW		 1108}
1109
14befaf4 1110
afe38520 1111/* map magic types to the symbolic names
14befaf4
DM		 1112 * (with the PERL_MAGIC_ prefixed stripped)
1113 */
1114
27da23d5 1115static const struct { const char type; const char *name; } magic_names[] = {
52f49505 1116#include "mg_names.c"
516a5887 1117 /* this null string terminates the list */
b9ac451d 1118 { 0, NULL },
14befaf4
DM		 1119};
1120
8adcabd8 1121void
6867be6d 1122Perl_do_magic_dump(pTHX_ I32 level, PerlIO *file, const MAGIC *mg, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
8d063cd8 1123{
7918f24d
NC		 1124 PERL_ARGS_ASSERT_DO_MAGIC_DUMP;
1125
3967c732 1126 for (; mg; mg = mg->mg_moremagic) {
b900a521
JH		 1127 Perl_dump_indent(aTHX_ level, file,
1128 " MAGIC = 0x%"UVxf"\n", PTR2UV(mg));
3967c732 1129 if (mg->mg_virtual) {
bfed75c6 1130 const MGVTBL * const v = mg->mg_virtual;
2d1f1fe5
NC		 1131 if (v >= PL_magic_vtables
1132 && v < PL_magic_vtables + magic_vtable_max) {
1133 const U32 i = v - PL_magic_vtables;
1134 Perl_dump_indent(aTHX_ level, file, " MG_VIRTUAL = &PL_vtbl_%s\n", PL_magic_vtable_names[i]);
1135 }
3967c732 1136 else
b900a521 1137 Perl_dump_indent(aTHX_ level, file, " MG_VIRTUAL = 0x%"UVxf"\n", PTR2UV(v));
3967c732
JD		 1138 }
1139 else
cea2e8a9 1140 Perl_dump_indent(aTHX_ level, file, " MG_VIRTUAL = 0\n");
8d063cd8 1141
3967c732 1142 if (mg->mg_private)
cea2e8a9 1143 Perl_dump_indent(aTHX_ level, file, " MG_PRIVATE = %d\n", mg->mg_private);
3967c732 1144
14befaf4
DM		 1145 {
1146 int n;
c445ea15 1147 const char *name = NULL;
27da23d5 1148 for (n = 0; magic_names[n].name; n++) {
14befaf4
DM		 1149 if (mg->mg_type == magic_names[n].type) {
1150 name = magic_names[n].name;
1151 break;
1152 }
1153 }
1154 if (name)
1155 Perl_dump_indent(aTHX_ level, file,
1156 " MG_TYPE = PERL_MAGIC_%s\n", name);
1157 else
1158 Perl_dump_indent(aTHX_ level, file,
1159 " MG_TYPE = UNKNOWN(\\%o)\n", mg->mg_type);
1160 }
3967c732
JD		 1161
1162 if (mg->mg_flags) {
cea2e8a9 1163 Perl_dump_indent(aTHX_ level, file, " MG_FLAGS = 0x%02X\n", mg->mg_flags);
cb50f42d
YST		 1164 if (mg->mg_type == PERL_MAGIC_envelem &&
1165 mg->mg_flags & MGf_TAINTEDDIR)
cea2e8a9 1166 Perl_dump_indent(aTHX_ level, file, " TAINTEDDIR\n");
4c02285a
FR		 1167 if (mg->mg_type == PERL_MAGIC_regex_global &&
1168 mg->mg_flags & MGf_MINMATCH)
1169 Perl_dump_indent(aTHX_ level, file, " MINMATCH\n");
3967c732 1170 if (mg->mg_flags & MGf_REFCOUNTED)
cea2e8a9 1171 Perl_dump_indent(aTHX_ level, file, " REFCOUNTED\n");
3967c732 1172 if (mg->mg_flags & MGf_GSKIP)
cea2e8a9 1173 Perl_dump_indent(aTHX_ level, file, " GSKIP\n");
4c02285a
FR		 1174 if (mg->mg_flags & MGf_COPY)
1175 Perl_dump_indent(aTHX_ level, file, " COPY\n");
1176 if (mg->mg_flags & MGf_DUP)
1177 Perl_dump_indent(aTHX_ level, file, " DUP\n");
1178 if (mg->mg_flags & MGf_LOCAL)
1179 Perl_dump_indent(aTHX_ level, file, " LOCAL\n");
25fdce4a
FC		 1180 if (mg->mg_type == PERL_MAGIC_regex_global &&
1181 mg->mg_flags & MGf_BYTES)
1182 Perl_dump_indent(aTHX_ level, file, " BYTES\n");
3967c732
JD		 1183 }
1184 if (mg->mg_obj) {
4c02285a 1185 Perl_dump_indent(aTHX_ level, file, " MG_OBJ = 0x%"UVxf"\n",
28d8d7f4
YO		 1186 PTR2UV(mg->mg_obj));
1187 if (mg->mg_type == PERL_MAGIC_qr) {
07bc277f 1188 REGEXP* const re = (REGEXP *)mg->mg_obj;
61f9802b 1189 SV * const dsv = sv_newmortal();
866c78d1 1190 const char * const s
4c02285a 1191 = pv_pretty(dsv, RX_WRAPPED(re), RX_WRAPLEN(re),
28d8d7f4 1192 60, NULL, NULL,
95b611b0 1193 ( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_PRETTY_ELLIPSES |
3c8556c3 1194 (RX_UTF8(re) ? PERL_PV_ESCAPE_UNI : 0))
28d8d7f4 1195 );
6483fb35
RGS		 1196 Perl_dump_indent(aTHX_ level+1, file, " PAT = %s\n", s);
1197 Perl_dump_indent(aTHX_ level+1, file, " REFCNT = %"IVdf"\n",
07bc277f 1198 (IV)RX_REFCNT(re));
28d8d7f4
YO		 1199 }
1200 if (mg->mg_flags & MGf_REFCOUNTED)
3967c732
JD		 1201 do_sv_dump(level+2, file, mg->mg_obj, nest+1, maxnest, dumpops, pvlim); /* MG is already +1 */
1202 }
1203 if (mg->mg_len)
894356b3 1204 Perl_dump_indent(aTHX_ level, file, " MG_LEN = %ld\n", (long)mg->mg_len);
3967c732 1205 if (mg->mg_ptr) {
b900a521 1206 Perl_dump_indent(aTHX_ level, file, " MG_PTR = 0x%"UVxf, PTR2UV(mg->mg_ptr));
3967c732 1207 if (mg->mg_len >= 0) {
7e8c5dac 1208 if (mg->mg_type != PERL_MAGIC_utf8) {
17605be7 1209 SV * const sv = newSVpvs("");
7e8c5dac 1210 PerlIO_printf(file, " %s", pv_display(sv, mg->mg_ptr, mg->mg_len, 0, pvlim));
17605be7 1211 SvREFCNT_dec_NN(sv);
7e8c5dac 1212 }
3967c732
JD		 1213 }
1214 else if (mg->mg_len == HEf_SVKEY) {
1215 PerlIO_puts(file, " => HEf_SVKEY\n");
ad64d0ec
NC		 1216 do_sv_dump(level+2, file, MUTABLE_SV(((mg)->mg_ptr)), nest+1,
1217 maxnest, dumpops, pvlim); /* MG is already +1 */
3967c732
JD		 1218 continue;
1219 }
866f9d6c 1220 else if (mg->mg_len == -1 && mg->mg_type == PERL_MAGIC_utf8);
3967c732 1221 else
866f9d6c
FC		 1222 PerlIO_puts(
1223 file,
1224 " ???? - " __FILE__
1225 " does not know how to handle this MG_LEN"
1226 );
3967c732
JD		 1227 PerlIO_putc(file, '\n');
1228 }
7e8c5dac 1229 if (mg->mg_type == PERL_MAGIC_utf8) {
61f9802b 1230 const STRLEN * const cache = (STRLEN *) mg->mg_ptr;
7e8c5dac
HS		 1231 if (cache) {
1232 IV i;
1233 for (i = 0; i < PERL_MAGIC_UTF8_CACHESIZE; i++)
1234 Perl_dump_indent(aTHX_ level, file,
1235 " %2"IVdf": %"UVuf" -> %"UVuf"\n",
1236 i,
1237 (UV)cache[i * 2],
1238 (UV)cache[i * 2 + 1]);
1239 }
1240 }
378cc40b 1241 }
3967c732
JD		 1242}
1243
1244void
6867be6d 1245Perl_magic_dump(pTHX_ const MAGIC *mg)
3967c732 1246{
b9ac451d 1247 do_magic_dump(0, Perl_debug_log, mg, 0, 0, FALSE, 0);
3967c732
JD		 1248}
1249
1250void
e1ec3a88 1251Perl_do_hv_dump(pTHX_ I32 level, PerlIO *file, const char *name, HV *sv)
3967c732 1252{
bfcb3514 1253 const char *hvname;
7918f24d
NC		 1254
1255 PERL_ARGS_ASSERT_DO_HV_DUMP;
1256
b900a521 1257 Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
bfcb3514 1258 if (sv && (hvname = HvNAME_get(sv)))
d7d51f4b
YO		 1259 {
1260 /* we have to use pv_display and HvNAMELEN_get() so that we display the real package
1261 name which quite legally could contain insane things like tabs, newlines, nulls or
1262 other scary crap - this should produce sane results - except maybe for unicode package
1263 names - but we will wait for someone to file a bug on that - demerphq */
0eb335df
BF		 1264 SV * const tmpsv = newSVpvs_flags("", SVs_TEMP);
1265 PerlIO_printf(file, "\t\"%s\"\n",
1266 generic_pv_escape( tmpsv, hvname,
1267 HvNAMELEN(sv), HvNAMEUTF8(sv)));
d7d51f4b 1268 }
79072805 1269 else
3967c732
JD		 1270 PerlIO_putc(file, '\n');
1271}
1272
1273void
e1ec3a88 1274Perl_do_gv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
3967c732 1275{
7918f24d
NC		 1276 PERL_ARGS_ASSERT_DO_GV_DUMP;
1277
b900a521 1278 Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
0eb335df
BF		 1279 if (sv && GvNAME(sv)) {
1280 SV * const tmpsv = newSVpvs("");
1281 PerlIO_printf(file, "\t\"%s\"\n",
1282 generic_pv_escape( tmpsv, GvNAME(sv), GvNAMELEN(sv), GvNAMEUTF8(sv) ));
1283 }
c90c0ff4 1284 else
3967c732
JD		 1285 PerlIO_putc(file, '\n');
1286}
1287
1288void
e1ec3a88 1289Perl_do_gvgv_dump(pTHX_ I32 level, PerlIO *file, const char *name, GV *sv)
3967c732 1290{
7918f24d
NC		 1291 PERL_ARGS_ASSERT_DO_GVGV_DUMP;
1292
b900a521 1293 Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
3967c732 1294 if (sv && GvNAME(sv)) {
0eb335df 1295 SV *tmp = newSVpvs_flags("", SVs_TEMP);
bfcb3514 1296 const char *hvname;
0eb335df
BF		 1297 HV * const stash = GvSTASH(sv);
1298 PerlIO_printf(file, "\t");
1299 /* TODO might have an extra \" here */
1300 if (stash && (hvname = HvNAME_get(stash))) {
1301 PerlIO_printf(file, "\"%s\" :: \"",
1302 generic_pv_escape(tmp, hvname,
1303 HvNAMELEN(stash), HvNAMEUTF8(stash)));
1304 }
1305 PerlIO_printf(file, "%s\"\n",
1306 generic_pv_escape( tmp, GvNAME(sv), GvNAMELEN(sv), GvNAMEUTF8(sv)));
8d063cd8 1307 }
3967c732
JD		 1308 else
1309 PerlIO_putc(file, '\n');
1310}
1311
a0c2f4dd
NC		 1312const struct flag_to_name first_sv_flags_names[] = {
1313 {SVs_TEMP, "TEMP,"},
1314 {SVs_OBJECT, "OBJECT,"},
1315 {SVs_GMG, "GMG,"},
1316 {SVs_SMG, "SMG,"},
1317 {SVs_RMG, "RMG,"},
1318 {SVf_IOK, "IOK,"},
1319 {SVf_NOK, "NOK,"},
1320 {SVf_POK, "POK,"}
1321};
1322
1323const struct flag_to_name second_sv_flags_names[] = {
1324 {SVf_OOK, "OOK,"},
1325 {SVf_FAKE, "FAKE,"},
1326 {SVf_READONLY, "READONLY,"},
fd01b4b7 1327 {SVf_PROTECT, "PROTECT,"},
a0c2f4dd 1328 {SVf_BREAK, "BREAK,"},
a0c2f4dd
NC		 1329 {SVp_IOK, "pIOK,"},
1330 {SVp_NOK, "pNOK,"},
1331 {SVp_POK, "pPOK,"}
1332};
1333
ae1f06a1
NC		 1334const struct flag_to_name cv_flags_names[] = {
1335 {CVf_ANON, "ANON,"},
1336 {CVf_UNIQUE, "UNIQUE,"},
1337 {CVf_CLONE, "CLONE,"},
1338 {CVf_CLONED, "CLONED,"},
1339 {CVf_CONST, "CONST,"},
1340 {CVf_NODEBUG, "NODEBUG,"},
1341 {CVf_LVALUE, "LVALUE,"},
1342 {CVf_METHOD, "METHOD,"},
cfc1e951 1343 {CVf_WEAKOUTSIDE, "WEAKOUTSIDE,"},
31d45e0c 1344 {CVf_CVGV_RC, "CVGV_RC,"},
bad4ae38 1345 {CVf_DYNFILE, "DYNFILE,"},
8fa6a409 1346 {CVf_AUTOLOAD, "AUTOLOAD,"},
e4555ecf 1347 {CVf_HASEVAL, "HASEVAL,"},
bfbc3ad9 1348 {CVf_SLABBED, "SLABBED,"},
bf9a4d2d 1349 {CVf_NAMED, "NAMED,"},
82487b59 1350 {CVf_LEXICAL, "LEXICAL,"},
31d45e0c 1351 {CVf_ISXSUB, "ISXSUB,"}
ae1f06a1
NC		 1352};
1353
1354const struct flag_to_name hv_flags_names[] = {
1355 {SVphv_SHAREKEYS, "SHAREKEYS,"},
1356 {SVphv_LAZYDEL, "LAZYDEL,"},
1357 {SVphv_HASKFLAGS, "HASKFLAGS,"},
45eaf8af 1358 {SVf_AMAGIC, "OVERLOAD,"},
ae1f06a1
NC		 1359 {SVphv_CLONEABLE, "CLONEABLE,"}
1360};
1361
1362const struct flag_to_name gp_flags_names[] = {
1363 {GVf_INTRO, "INTRO,"},
1364 {GVf_MULTI, "MULTI,"},
1365 {GVf_ASSUMECV, "ASSUMECV,"},
ae1f06a1
NC		 1366};
1367
1368const struct flag_to_name gp_flags_imported_names[] = {
1369 {GVf_IMPORTED_SV, " SV"},
1370 {GVf_IMPORTED_AV, " AV"},
1371 {GVf_IMPORTED_HV, " HV"},
1372 {GVf_IMPORTED_CV, " CV"},
1373};
1374
0d331aaf
YO		 1375/* NOTE: this structure is mostly duplicative of one generated by
1376 * 'make regen' in regnodes.h - perhaps we should somehow integrate
1377 * the two. - Yves */
e3e400ec 1378const struct flag_to_name regexp_extflags_names[] = {
d63e6659
DM		 1379 {RXf_PMf_MULTILINE, "PMf_MULTILINE,"},
1380 {RXf_PMf_SINGLELINE, "PMf_SINGLELINE,"},
1381 {RXf_PMf_FOLD, "PMf_FOLD,"},
1382 {RXf_PMf_EXTENDED, "PMf_EXTENDED,"},
334afb3e 1383 {RXf_PMf_EXTENDED_MORE, "PMf_EXTENDED_MORE,"},
d63e6659 1384 {RXf_PMf_KEEPCOPY, "PMf_KEEPCOPY,"},
8e1490ee 1385 {RXf_IS_ANCHORED, "IS_ANCHORED,"},
dbc200c5 1386 {RXf_NO_INPLACE_SUBST, "NO_INPLACE_SUBST,"},
d63e6659 1387 {RXf_EVAL_SEEN, "EVAL_SEEN,"},
d63e6659
DM		 1388 {RXf_CHECK_ALL, "CHECK_ALL,"},
1389 {RXf_MATCH_UTF8, "MATCH_UTF8,"},
1390 {RXf_USE_INTUIT_NOML, "USE_INTUIT_NOML,"},
1391 {RXf_USE_INTUIT_ML, "USE_INTUIT_ML,"},
1392 {RXf_INTUIT_TAIL, "INTUIT_TAIL,"},
dbc200c5 1393 {RXf_SPLIT, "SPLIT,"},
d63e6659
DM		 1394 {RXf_COPY_DONE, "COPY_DONE,"},
1395 {RXf_TAINTED_SEEN, "TAINTED_SEEN,"},
1396 {RXf_TAINTED, "TAINTED,"},
1397 {RXf_START_ONLY, "START_ONLY,"},
dbc200c5 1398 {RXf_SKIPWHITE, "SKIPWHITE,"},
d63e6659
DM		 1399 {RXf_WHITE, "WHITE,"},
1400 {RXf_NULL, "NULL,"},
1401};
1402
0d331aaf
YO		 1403/* NOTE: this structure is mostly duplicative of one generated by
1404 * 'make regen' in regnodes.h - perhaps we should somehow integrate
1405 * the two. - Yves */
e3e400ec
YO		 1406const struct flag_to_name regexp_core_intflags_names[] = {
1407 {PREGf_SKIP, "SKIP,"},
0d331aaf
YO		 1408 {PREGf_IMPLICIT, "IMPLICIT,"},
1409 {PREGf_NAUGHTY, "NAUGHTY,"},
e3e400ec
YO		 1410 {PREGf_VERBARG_SEEN, "VERBARG_SEEN,"},
1411 {PREGf_CUTGROUP_SEEN, "CUTGROUP_SEEN,"},
0d331aaf 1412 {PREGf_USE_RE_EVAL, "USE_RE_EVAL,"},
e3e400ec 1413 {PREGf_NOSCAN, "NOSCAN,"},
0d331aaf 1414 {PREGf_CANY_SEEN, "CANY_SEEN,"},
58430ea8
YO		 1415 {PREGf_GPOS_SEEN, "GPOS_SEEN,"},
1416 {PREGf_GPOS_FLOAT, "GPOS_FLOAT,"},
8e1490ee
YO		 1417 {PREGf_ANCH_MBOL, "ANCH_MBOL,"},
1418 {PREGf_ANCH_SBOL, "ANCH_SBOL,"},
1419 {PREGf_ANCH_GPOS, "ANCH_GPOS,"},
e3e400ec
YO		 1420};
1421
3967c732 1422void
864dbfa3 1423Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
3967c732 1424{
cea89e20 1425 SV *d;
e1ec3a88 1426 const char *s;
3967c732
JD		 1427 U32 flags;
1428 U32 type;
1429
7918f24d
NC		 1430 PERL_ARGS_ASSERT_DO_SV_DUMP;
1431
3967c732 1432 if (!sv) {
cea2e8a9 1433 Perl_dump_indent(aTHX_ level, file, "SV = 0\n");
3967c732 1434 return;
378cc40b 1435 }
2ef28da1 1436
3967c732
JD		 1437 flags = SvFLAGS(sv);
1438 type = SvTYPE(sv);
79072805 1439
e0bbf362
DM		 1440 /* process general SV flags */
1441
cea89e20 1442 d = Perl_newSVpvf(aTHX_
57def98f 1443 "(0x%"UVxf") at 0x%"UVxf"\n%*s REFCNT = %"IVdf"\n%*s FLAGS = (",
56431972 1444 PTR2UV(SvANY(sv)), PTR2UV(sv),
894356b3
GS		 1445 (int)(PL_dumpindent*level), "", (IV)SvREFCNT(sv),
1446 (int)(PL_dumpindent*level), "");
8d063cd8 1447
0f94cb1f 1448 if ((flags & SVs_PADSTALE))
9a214eec 1449 sv_catpv(d, "PADSTALE,");
0f94cb1f 1450 if ((flags & SVs_PADTMP))
9a214eec 1451 sv_catpv(d, "PADTMP,");
a0c2f4dd 1452 append_flags(d, flags, first_sv_flags_names);
810b8aa5
GS		 1453 if (flags & SVf_ROK) {
1454 sv_catpv(d, "ROK,");
1455 if (SvWEAKREF(sv)) sv_catpv(d, "WEAKREF,");
1456 }
45eaf8af 1457 if (flags & SVf_IsCOW && type != SVt_PVHV) sv_catpvs(d, "IsCOW,");
a0c2f4dd 1458 append_flags(d, flags, second_sv_flags_names);
7db6405c
FC		 1459 if (flags & SVp_SCREAM && type != SVt_PVHV && !isGV_with_GP(sv)
1460 && type != SVt_PVAV) {
1ccdb730
NC		 1461 if (SvPCS_IMPORTED(sv))
1462 sv_catpv(d, "PCS_IMPORTED,");
1463 else
9660f481 1464 sv_catpv(d, "SCREAM,");
1ccdb730 1465 }
3967c732 1466
e0bbf362
DM		 1467 /* process type-specific SV flags */
1468
3967c732
JD		 1469 switch (type) {
1470 case SVt_PVCV:
1471 case SVt_PVFM:
ae1f06a1 1472 append_flags(d, CvFLAGS(sv), cv_flags_names);
3967c732
JD		 1473 break;
1474 case SVt_PVHV:
ae1f06a1 1475 append_flags(d, flags, hv_flags_names);
3967c732 1476 break;
926fc7b6
DM		 1477 case SVt_PVGV:
1478 case SVt_PVLV:
1479 if (isGV_with_GP(sv)) {
ae1f06a1 1480 append_flags(d, GvFLAGS(sv), gp_flags_names);
926fc7b6 1481 }
926fc7b6 1482 if (isGV_with_GP(sv) && GvIMPORTED(sv)) {
3967c732
JD		 1483 sv_catpv(d, "IMPORT");
1484 if (GvIMPORTED(sv) == GVf_IMPORTED)
1485 sv_catpv(d, "ALL,");
1486 else {
1487 sv_catpv(d, "(");
ae1f06a1 1488 append_flags(d, GvFLAGS(sv), gp_flags_imported_names);
3967c732
JD		 1489 sv_catpv(d, " ),");
1490 }
1491 }
924ba076 1492 /* FALLTHROUGH */
25da4f38 1493 default:
e604303a 1494 evaled_or_uv:
25da4f38 1495 if (SvEVALED(sv)) sv_catpv(d, "EVALED,");
69c678eb 1496 if (SvIsUV(sv) && !(flags & SVf_ROK)) sv_catpv(d, "IsUV,");
25da4f38 1497 break;
addd1794 1498 case SVt_PVMG:
c13a5c80
NC		 1499 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
1500 if (SvVALID(sv)) sv_catpv(d, "VALID,");
924ba076 1501 /* FALLTHROUGH */
e604303a 1502 goto evaled_or_uv;
11ca45c0
NC		 1503 case SVt_PVAV:
1504 break;
3967c732 1505 }
86f0d186
NC		 1506 /* SVphv_SHAREKEYS is also 0x20000000 */
1507 if ((type != SVt_PVHV) && SvUTF8(sv))
9fe74ede 1508 sv_catpv(d, "UTF8");
3967c732 1509
b162af07
SP		 1510 if (*(SvEND(d) - 1) == ',') {
1511 SvCUR_set(d, SvCUR(d) - 1);
1512 SvPVX(d)[SvCUR(d)] = '\0';
1513 }
3967c732 1514 sv_catpv(d, ")");
b15aece3 1515 s = SvPVX_const(d);
3967c732 1516
e0bbf362
DM		 1517 /* dump initial SV details */
1518
fd0854ff 1519#ifdef DEBUG_LEAKING_SCALARS
cbe56f1d 1520 Perl_dump_indent(aTHX_ level, file,
cd676548 1521 "ALLOCATED at %s:%d %s %s (parent 0x%"UVxf"); serial %"UVuf"\n",
fd0854ff
DM		 1522 sv->sv_debug_file ? sv->sv_debug_file : "(unknown)",
1523 sv->sv_debug_line,
1524 sv->sv_debug_inpad ? "for" : "by",
1525 sv->sv_debug_optype ? PL_op_name[sv->sv_debug_optype]: "(none)",
cd676548 1526 PTR2UV(sv->sv_debug_parent),
cbe56f1d
DM		 1527 sv->sv_debug_serial
1528 );
fd0854ff 1529#endif
cea2e8a9 1530 Perl_dump_indent(aTHX_ level, file, "SV = ");
e0bbf362
DM		 1531
1532 /* Dump SV type */
1533
5357ca29
NC		 1534 if (type < SVt_LAST) {
1535 PerlIO_printf(file, "%s%s\n", svtypenames[type], s);
1536
1537 if (type == SVt_NULL) {
5f954473 1538 SvREFCNT_dec_NN(d);
5357ca29
NC		 1539 return;
1540 }
1541 } else {
faccc32b 1542 PerlIO_printf(file, "UNKNOWN(0x%"UVxf") %s\n", (UV)type, s);
5f954473 1543 SvREFCNT_dec_NN(d);
3967c732
JD		 1544 return;
1545 }
e0bbf362
DM		 1546
1547 /* Dump general SV fields */
1548
27bd069f 1549 if ((type >= SVt_PVIV && type != SVt_PVAV && type != SVt_PVHV
0a0c4b76
NC		 1550 && type != SVt_PVCV && type != SVt_PVFM && type != SVt_PVIO
1551 && type != SVt_REGEXP && !isGV_with_GP(sv) && !SvVALID(sv))
4df7f6af 1552 || (type == SVt_IV && !SvROK(sv))) {
765f542d 1553 if (SvIsUV(sv)
f8c7b90f 1554#ifdef PERL_OLD_COPY_ON_WRITE
765f542d
NC		 1555 || SvIsCOW(sv)
1556#endif
1557 )
57def98f 1558 Perl_dump_indent(aTHX_ level, file, " UV = %"UVuf, (UV)SvUVX(sv));
cf2093f6 1559 else
57def98f 1560 Perl_dump_indent(aTHX_ level, file, " IV = %"IVdf, (IV)SvIVX(sv));
f8c7b90f 1561#ifdef PERL_OLD_COPY_ON_WRITE
765f542d
NC		 1562 if (SvIsCOW_shared_hash(sv))
1563 PerlIO_printf(file, " (HASH)");
1564 else if (SvIsCOW_normal(sv))
1565 PerlIO_printf(file, " (COW from 0x%"UVxf")", (UV)SvUVX(sv));
1566#endif
3967c732
JD		 1567 PerlIO_putc(file, '\n');
1568 }
e0bbf362 1569
0f94cb1f 1570 if ((type >= SVt_PVNV && type != SVt_PVAV && type != SVt_PVHV
08e44740 1571 && type != SVt_PVCV && type != SVt_PVFM && type != SVt_REGEXP
c0a413d1 1572 && type != SVt_PVIO && !isGV_with_GP(sv) && !SvVALID(sv))
0e4c4423 1573 || type == SVt_NV) {
e54dc35b 1574 STORE_NUMERIC_LOCAL_SET_STANDARD();
88cb8500 1575 Perl_dump_indent(aTHX_ level, file, " NV = %.*" NVgf "\n", NV_DIG, SvNVX(sv));
e54dc35b 1576 RESTORE_NUMERIC_LOCAL();
3967c732 1577 }
e0bbf362 1578
3967c732 1579 if (SvROK(sv)) {
57def98f 1580 Perl_dump_indent(aTHX_ level, file, " RV = 0x%"UVxf"\n", PTR2UV(SvRV(sv)));
3967c732
JD		 1581 if (nest < maxnest)
1582 do_sv_dump(level+1, file, SvRV(sv), nest+1, maxnest, dumpops, pvlim);
3967c732 1583 }
e0bbf362 1584
cea89e20 1585 if (type < SVt_PV) {
5f954473 1586 SvREFCNT_dec_NN(d);
3967c732 1587 return;
cea89e20 1588 }
e0bbf362 1589
5a3c7349
FC		 1590 if ((type <= SVt_PVLV && !isGV_with_GP(sv))
1591 || (type == SVt_PVIO && IoFLAGS(sv) & IOf_FAKE_DIRP)) {
8d919b0a
FC		 1592 const bool re = isREGEXP(sv);
1593 const char * const ptr =
1594 re ? RX_WRAPPED((REGEXP*)sv) : SvPVX_const(sv);
1595 if (ptr) {
69240efd 1596 STRLEN delta;
7a4bba22 1597 if (SvOOK(sv)) {
69240efd 1598 SvOOK_offset(sv, delta);
7a4bba22 1599 Perl_dump_indent(aTHX_ level, file," OFFSET = %"UVuf"\n",
5186cc12 1600 (UV) delta);
69240efd
NC		 1601 } else {
1602 delta = 0;
7a4bba22 1603 }
8d919b0a 1604 Perl_dump_indent(aTHX_ level, file," PV = 0x%"UVxf" ", PTR2UV(ptr));
7a4bba22
NC		 1605 if (SvOOK(sv)) {
1606 PerlIO_printf(file, "( %s . ) ",
8d919b0a 1607 pv_display(d, ptr - delta, delta, 0,
7a4bba22
NC		 1608 pvlim));
1609 }
ad3f05ad
KW		 1610 if (type == SVt_INVLIST) {
1611 PerlIO_printf(file, "\n");
1612 /* 4 blanks indents 2 beyond the PV, etc */
1613 _invlist_dump(file, level, " ", sv);
1614 }
1615 else {
685bfc3c
KW		 1616 PerlIO_printf(file, "%s", pv_display(d, ptr, SvCUR(sv),
1617 re ? 0 : SvLEN(sv),
1618 pvlim));
1619 if (SvUTF8(sv)) /* the 6? \x{....} */
1620 PerlIO_printf(file, " [UTF8 \"%s\"]",
1621 sv_uni_display(d, sv, 6 * SvCUR(sv),
1622 UNI_DISPLAY_QQ));
1623 PerlIO_printf(file, "\n");
ad3f05ad 1624 }
57def98f 1625 Perl_dump_indent(aTHX_ level, file, " CUR = %"IVdf"\n", (IV)SvCUR(sv));
8d919b0a
FC		 1626 if (!re)
1627 Perl_dump_indent(aTHX_ level, file, " LEN = %"IVdf"\n",
1628 (IV)SvLEN(sv));
db2c6cb3
FC		 1629#ifdef PERL_NEW_COPY_ON_WRITE
1630 if (SvIsCOW(sv) && SvLEN(sv))
1631 Perl_dump_indent(aTHX_ level, file, " COW_REFCNT = %d\n",
1632 CowREFCNT(sv));
1633#endif
3967c732
JD		 1634 }
1635 else
cea2e8a9 1636 Perl_dump_indent(aTHX_ level, file, " PV = 0\n");
3967c732 1637 }
e0bbf362 1638
3967c732 1639 if (type >= SVt_PVMG) {
0f94cb1f 1640 if (SvMAGIC(sv))
8530ff28 1641 do_magic_dump(level, file, SvMAGIC(sv), nest+1, maxnest, dumpops, pvlim);
3967c732
JD		 1642 if (SvSTASH(sv))
1643 do_hv_dump(level, file, " STASH", SvSTASH(sv));
c13a5c80
NC		 1644
1645 if ((type == SVt_PVMG || type == SVt_PVLV) && SvVALID(sv)) {
c13a5c80
NC		 1646 Perl_dump_indent(aTHX_ level, file, " USEFUL = %"IVdf"\n", (IV)BmUSEFUL(sv));
1647 }
3967c732 1648 }
e0bbf362
DM		 1649
1650 /* Dump type-specific SV fields */
1651
3967c732 1652 switch (type) {
3967c732 1653 case SVt_PVAV:
57def98f 1654 Perl_dump_indent(aTHX_ level, file, " ARRAY = 0x%"UVxf, PTR2UV(AvARRAY(sv)));
3967c732 1655 if (AvARRAY(sv) != AvALLOC(sv)) {
57def98f
JH		 1656 PerlIO_printf(file, " (offset=%"IVdf")\n", (IV)(AvARRAY(sv) - AvALLOC(sv)));
1657 Perl_dump_indent(aTHX_ level, file, " ALLOC = 0x%"UVxf"\n", PTR2UV(AvALLOC(sv)));
3967c732
JD		 1658 }
1659 else
1660 PerlIO_putc(file, '\n');
57def98f
JH		 1661 Perl_dump_indent(aTHX_ level, file, " FILL = %"IVdf"\n", (IV)AvFILLp(sv));
1662 Perl_dump_indent(aTHX_ level, file, " MAX = %"IVdf"\n", (IV)AvMAX(sv));
9b7476d7 1663 Perl_dump_indent(aTHX_ level, file, " ARYLEN = 0x%"UVxf"\n",
7db6405c 1664 SvMAGIC(sv) ? PTR2UV(AvARYLEN(sv)) : 0);
76f68e9b 1665 sv_setpvs(d, "");
11ca45c0
NC		 1666 if (AvREAL(sv)) sv_catpv(d, ",REAL");
1667 if (AvREIFY(sv)) sv_catpv(d, ",REIFY");
b15aece3
SP		 1668 Perl_dump_indent(aTHX_ level, file, " FLAGS = (%s)\n",
1669 SvCUR(d) ? SvPVX_const(d) + 1 : "");
b9f2b683 1670 if (nest < maxnest && av_tindex(MUTABLE_AV(sv)) >= 0) {
c70927a6 1671 SSize_t count;
b9f2b683 1672 for (count = 0; count <= av_tindex(MUTABLE_AV(sv)) && count < maxnest; count++) {
502c6561 1673 SV** const elt = av_fetch(MUTABLE_AV(sv),count,0);
3967c732 1674
57def98f 1675 Perl_dump_indent(aTHX_ level + 1, file, "Elt No. %"IVdf"\n", (IV)count);
2ef28da1 1676 if (elt)
3967c732
JD		 1677 do_sv_dump(level+1, file, *elt, nest+1, maxnest, dumpops, pvlim);
1678 }
1679 }
1680 break;
5d27ee4a
DD		 1681 case SVt_PVHV: {
1682 U32 usedkeys;
0c22a733
DM		 1683 if (SvOOK(sv)) {
1684 struct xpvhv_aux *const aux = HvAUX(sv);
1685 Perl_dump_indent(aTHX_ level, file, " AUX_FLAGS = %"UVuf"\n",
1686 (UV)aux->xhv_aux_flags);
1687 }
57def98f 1688 Perl_dump_indent(aTHX_ level, file, " ARRAY = 0x%"UVxf, PTR2UV(HvARRAY(sv)));
5d27ee4a
DD		 1689 usedkeys = HvUSEDKEYS(sv);
1690 if (HvARRAY(sv) && usedkeys) {
3967c732
JD		 1691 /* Show distribution of HEs in the ARRAY */
1692 int freq[200];
c3caa5c3 1693#define FREQ_MAX ((int)(C_ARRAY_LENGTH(freq) - 1))
3967c732
JD		 1694 int i;
1695 int max = 0;
5d27ee4a 1696 U32 pow2 = 2, keys = usedkeys;
65202027 1697 NV theoret, sum = 0;
3967c732
JD		 1698
1699 PerlIO_printf(file, " (");
1700 Zero(freq, FREQ_MAX + 1, int);
eb160463 1701 for (i = 0; (STRLEN)i <= HvMAX(sv); i++) {
c445ea15
AL		 1702 HE* h;
1703 int count = 0;
3967c732
JD		 1704 for (h = HvARRAY(sv)[i]; h; h = HeNEXT(h))
1705 count++;
1706 if (count > FREQ_MAX)
1707 count = FREQ_MAX;
1708 freq[count]++;
1709 if (max < count)
1710 max = count;
1711 }
1712 for (i = 0; i <= max; i++) {
1713 if (freq[i]) {
1714 PerlIO_printf(file, "%d%s:%d", i,
1715 (i == FREQ_MAX) ? "+" : "",
1716 freq[i]);
1717 if (i != max)
1718 PerlIO_printf(file, ", ");
1719 }
1720 }
1721 PerlIO_putc(file, ')');
b8fa94d8
MG		 1722 /* The "quality" of a hash is defined as the total number of
1723 comparisons needed to access every element once, relative
1724 to the expected number needed for a random hash.
1725
1726 The total number of comparisons is equal to the sum of
e76cd0fa
AMS		 1727 the squares of the number of entries in each bucket.
1728 For a random hash of n keys into k buckets, the expected
b8fa94d8
MG		 1729 value is
1730 n + n(n-1)/2k
1731 */
1732
3967c732
JD		 1733 for (i = max; i > 0; i--) { /* Precision: count down. */
1734 sum += freq[i] * i * i;
1735 }
155aba94 1736 while ((keys = keys >> 1))
3967c732 1737 pow2 = pow2 << 1;
5d27ee4a 1738 theoret = usedkeys;
b8fa94d8 1739 theoret += theoret * (theoret-1)/pow2;
3967c732 1740 PerlIO_putc(file, '\n');
6b4667fc 1741 Perl_dump_indent(aTHX_ level, file, " hash quality = %.1"NVff"%%", theoret/sum*100);
3967c732
JD		 1742 }
1743 PerlIO_putc(file, '\n');
5d27ee4a 1744 Perl_dump_indent(aTHX_ level, file, " KEYS = %"IVdf"\n", (IV)usedkeys);
9faf471a
NC		 1745 {
1746 STRLEN count = 0;
1747 HE **ents = HvARRAY(sv);
1748
1749 if (ents) {
1750 HE *const *const last = ents + HvMAX(sv);
1751 count = last + 1 - ents;
1752
1753 do {
1754 if (!*ents)
1755 --count;
1756 } while (++ents <= last);
1757 }
1758
1759 if (SvOOK(sv)) {
1760 struct xpvhv_aux *const aux = HvAUX(sv);
1761 Perl_dump_indent(aTHX_ level, file, " FILL = %"UVuf
1762 " (cached = %"UVuf")\n",
1763 (UV)count, (UV)aux->xhv_fill_lazy);
1764 } else {
1765 Perl_dump_indent(aTHX_ level, file, " FILL = %"UVuf"\n",
1766 (UV)count);
1767 }
1768 }
57def98f 1769 Perl_dump_indent(aTHX_ level, file, " MAX = %"IVdf"\n", (IV)HvMAX(sv));
e1a7ec8d
YO		 1770 if (SvOOK(sv)) {
1771 Perl_dump_indent(aTHX_ level, file, " RITER = %"IVdf"\n", (IV)HvRITER_get(sv));
1772 Perl_dump_indent(aTHX_ level, file, " EITER = 0x%"UVxf"\n", PTR2UV(HvEITER_get(sv)));
6a5b4183 1773#ifdef PERL_HASH_RANDOMIZE_KEYS
e1a7ec8d
YO		 1774 Perl_dump_indent(aTHX_ level, file, " RAND = 0x%"UVxf, (UV)HvRAND_get(sv));
1775 if (HvRAND_get(sv) != HvLASTRAND_get(sv) && HvRITER_get(sv) != -1 ) {
6a5b4183 1776 PerlIO_printf(file, " (LAST = 0x%"UVxf")", (UV)HvLASTRAND_get(sv));
e1a7ec8d 1777 }
6a5b4183
YO		 1778#endif
1779 PerlIO_putc(file, '\n');
e1a7ec8d 1780 }
8d2f4536 1781 {
b9ac451d 1782 MAGIC * const mg = mg_find(sv, PERL_MAGIC_symtab);
8d2f4536
NC		 1783 if (mg && mg->mg_obj) {
1784 Perl_dump_indent(aTHX_ level, file, " PMROOT = 0x%"UVxf"\n", PTR2UV(mg->mg_obj));
1785 }
1786 }
bfcb3514 1787 {
b9ac451d 1788 const char * const hvname = HvNAME_get(sv);
0eb335df
BF		 1789 if (hvname) {
1790 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
1791 Perl_dump_indent(aTHX_ level, file, " NAME = \"%s\"\n",
1792 generic_pv_escape( tmpsv, hvname,
1793 HvNAMELEN(sv), HvNAMEUTF8(sv)));
1794 }
bfcb3514 1795 }
86f55936 1796 if (SvOOK(sv)) {
ad64d0ec 1797 AV * const backrefs
85fbaab2 1798 = *Perl_hv_backreferences_p(aTHX_ MUTABLE_HV(sv));
7d88e6c4 1799 struct mro_meta * const meta = HvAUX(sv)->xhv_mro_meta;
67e04715
FC		 1800 if (HvAUX(sv)->xhv_name_count)
1801 Perl_dump_indent(aTHX_
7afc2217
FC		 1802 level, file, " NAMECOUNT = %"IVdf"\n",
1803 (IV)HvAUX(sv)->xhv_name_count
67e04715 1804 );
15d9236d 1805 if (HvAUX(sv)->xhv_name_u.xhvnameu_name && HvENAME_HEK_NN(sv)) {
ec3405c8
NC		 1806 const I32 count = HvAUX(sv)->xhv_name_count;
1807 if (count) {
1808 SV * const names = newSVpvs_flags("", SVs_TEMP);
1809 /* The starting point is the first element if count is
1810 positive and the second element if count is negative. */
1811 HEK *const *hekp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1812 + (count < 0 ? 1 : 0);
1813 HEK *const *const endp = HvAUX(sv)->xhv_name_u.xhvnameu_names
1814 + (count < 0 ? -count : count);
1815 while (hekp < endp) {
0eb335df
BF		 1816 if (HEK_LEN(*hekp)) {
1817 SV *tmp = newSVpvs_flags("", SVs_TEMP);
1818 Perl_sv_catpvf(aTHX_ names, ", \"%s\"",
1819 generic_pv_escape(tmp, HEK_KEY(*hekp), HEK_LEN(*hekp), HEK_UTF8(*hekp)));
ec3405c8
NC		 1820 } else {
1821 /* This should never happen. */
1822 sv_catpvs(names, ", (null)");
67e04715 1823 }
ec3405c8
NC		 1824 ++hekp;
1825 }
67e04715
FC		 1826 Perl_dump_indent(aTHX_
1827 level, file, " ENAME = %s\n", SvPV_nolen(names)+2
1828 );
1829 }
0eb335df
BF		 1830 else {
1831 SV * const tmp = newSVpvs_flags("", SVs_TEMP);
1832 const char *const hvename = HvENAME_get(sv);
67e04715 1833 Perl_dump_indent(aTHX_
0eb335df
BF		 1834 level, file, " ENAME = \"%s\"\n",
1835 generic_pv_escape(tmp, hvename,
1836 HvENAMELEN_get(sv), HvENAMEUTF8(sv)));
1837 }
67e04715 1838 }
86f55936
NC		 1839 if (backrefs) {
1840 Perl_dump_indent(aTHX_ level, file, " BACKREFS = 0x%"UVxf"\n",
1841 PTR2UV(backrefs));
ad64d0ec 1842 do_sv_dump(level+1, file, MUTABLE_SV(backrefs), nest+1, maxnest,
86f55936
NC		 1843 dumpops, pvlim);
1844 }
7d88e6c4 1845 if (meta) {
0eb335df
BF		 1846 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
1847 Perl_dump_indent(aTHX_ level, file, " MRO_WHICH = \"%s\" (0x%"UVxf")\n",
1848 generic_pv_escape( tmpsv, meta->mro_which->name,
1849 meta->mro_which->length,
1850 (meta->mro_which->kflags & HVhek_UTF8)),
7d88e6c4
NC		 1851 PTR2UV(meta->mro_which));
1852 Perl_dump_indent(aTHX_ level, file, " CACHE_GEN = 0x%"UVxf"\n",
1853 (UV)meta->cache_gen);
1854 Perl_dump_indent(aTHX_ level, file, " PKG_GEN = 0x%"UVxf"\n",
1855 (UV)meta->pkg_gen);
1856 if (meta->mro_linear_all) {
1857 Perl_dump_indent(aTHX_ level, file, " MRO_LINEAR_ALL = 0x%"UVxf"\n",
1858 PTR2UV(meta->mro_linear_all));
1859 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_all), nest+1, maxnest,
1860 dumpops, pvlim);
1861 }
1862 if (meta->mro_linear_current) {
1863 Perl_dump_indent(aTHX_ level, file, " MRO_LINEAR_CURRENT = 0x%"UVxf"\n",
1864 PTR2UV(meta->mro_linear_current));
1865 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_linear_current), nest+1, maxnest,
1866 dumpops, pvlim);
1867 }
1868 if (meta->mro_nextmethod) {
1869 Perl_dump_indent(aTHX_ level, file, " MRO_NEXTMETHOD = 0x%"UVxf"\n",
1870 PTR2UV(meta->mro_nextmethod));
1871 do_sv_dump(level+1, file, MUTABLE_SV(meta->mro_nextmethod), nest+1, maxnest,
1872 dumpops, pvlim);
1873 }
1874 if (meta->isa) {
1875 Perl_dump_indent(aTHX_ level, file, " ISA = 0x%"UVxf"\n",
1876 PTR2UV(meta->isa));
1877 do_sv_dump(level+1, file, MUTABLE_SV(meta->isa), nest+1, maxnest,
1878 dumpops, pvlim);
1879 }
1880 }
86f55936 1881 }
b5698553 1882 if (nest < maxnest) {
cbab3169 1883 HV * const hv = MUTABLE_HV(sv);
b5698553
TH		 1884 STRLEN i;
1885 HE *he;
cbab3169 1886
b5698553
TH		 1887 if (HvARRAY(hv)) {
1888 int count = maxnest - nest;
1889 for (i=0; i <= HvMAX(hv); i++) {
1890 for (he = HvARRAY(hv)[i]; he; he = HeNEXT(he)) {
1891 U32 hash;
1892 SV * keysv;
1893 const char * keypv;
1894 SV * elt;
7dc86639 1895 STRLEN len;
b5698553
TH		 1896
1897 if (count-- <= 0) goto DONEHV;
1898
1899 hash = HeHASH(he);
1900 keysv = hv_iterkeysv(he);
1901 keypv = SvPV_const(keysv, len);
1902 elt = HeVAL(he);
cbab3169 1903
7dc86639
YO		 1904 Perl_dump_indent(aTHX_ level+1, file, "Elt %s ", pv_display(d, keypv, len, 0, pvlim));
1905 if (SvUTF8(keysv))
1906 PerlIO_printf(file, "[UTF8 \"%s\"] ", sv_uni_display(d, keysv, 6 * SvCUR(keysv), UNI_DISPLAY_QQ));
b5698553
TH		 1907 if (HvEITER_get(hv) == he)
1908 PerlIO_printf(file, "[CURRENT] ");
7dc86639
YO		 1909 PerlIO_printf(file, "HASH = 0x%"UVxf"\n", (UV) hash);
1910 do_sv_dump(level+1, file, elt, nest+1, maxnest, dumpops, pvlim);
1911 }
b5698553
TH		 1912 }
1913 DONEHV:;
1914 }
3967c732
JD		 1915 }
1916 break;
5d27ee4a 1917 } /* case SVt_PVHV */
e0bbf362 1918
3967c732 1919 case SVt_PVCV:
8fa6a409 1920 if (CvAUTOLOAD(sv)) {
0eb335df
BF		 1921 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
1922 STRLEN len;
8fa6a409 1923 const char *const name = SvPV_const(sv, len);
0eb335df
BF		 1924 Perl_dump_indent(aTHX_ level, file, " AUTOLOAD = \"%s\"\n",
1925 generic_pv_escape(tmpsv, name, len, SvUTF8(sv)));
8fa6a409
FC		 1926 }
1927 if (SvPOK(sv)) {
0eb335df
BF		 1928 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
1929 const char *const proto = CvPROTO(sv);
1930 Perl_dump_indent(aTHX_ level, file, " PROTOTYPE = \"%s\"\n",
1931 generic_pv_escape(tmpsv, proto, CvPROTOLEN(sv),
1932 SvUTF8(sv)));
cbf82dd0 1933 }
924ba076 1934 /* FALLTHROUGH */
3967c732
JD		 1935 case SVt_PVFM:
1936 do_hv_dump(level, file, " COMP_STASH", CvSTASH(sv));
d04ba589
NC		 1937 if (!CvISXSUB(sv)) {
1938 if (CvSTART(sv)) {
1939 Perl_dump_indent(aTHX_ level, file,
1940 " START = 0x%"UVxf" ===> %"IVdf"\n",
1941 PTR2UV(CvSTART(sv)),
1942 (IV)sequence_num(CvSTART(sv)));
1943 }
1944 Perl_dump_indent(aTHX_ level, file, " ROOT = 0x%"UVxf"\n",
1945 PTR2UV(CvROOT(sv)));
1946 if (CvROOT(sv) && dumpops) {
1947 do_op_dump(level+1, file, CvROOT(sv));
1948 }
1949 } else {
126f53f3 1950 SV * const constant = cv_const_sv((const CV *)sv);
b1886099 1951
d04ba589 1952 Perl_dump_indent(aTHX_ level, file, " XSUB = 0x%"UVxf"\n", PTR2UV(CvXSUB(sv)));
b1886099
NC		 1953
1954 if (constant) {
1955 Perl_dump_indent(aTHX_ level, file, " XSUBANY = 0x%"UVxf
1956 " (CONST SV)\n",
1957 PTR2UV(CvXSUBANY(sv).any_ptr));
1958 do_sv_dump(level+1, file, constant, nest+1, maxnest, dumpops,
1959 pvlim);
1960 } else {
1961 Perl_dump_indent(aTHX_ level, file, " XSUBANY = %"IVdf"\n",
1962 (IV)CvXSUBANY(sv).any_i32);
1963 }
1964 }
3610c89f
FC		 1965 if (CvNAMED(sv))
1966 Perl_dump_indent(aTHX_ level, file, " NAME = \"%s\"\n",
1967 HEK_KEY(CvNAME_HEK((CV *)sv)));
1968 else do_gvgv_dump(level, file, " GVGV::GV", CvGV(sv));
57843af0 1969 Perl_dump_indent(aTHX_ level, file, " FILE = \"%s\"\n", CvFILE(sv));
bb02a38f 1970 Perl_dump_indent(aTHX_ level, file, " DEPTH = %"IVdf"\n", (IV)CvDEPTH(sv));
894356b3 1971 Perl_dump_indent(aTHX_ level, file, " FLAGS = 0x%"UVxf"\n", (UV)CvFLAGS(sv));
a3985cdc 1972 Perl_dump_indent(aTHX_ level, file, " OUTSIDE_SEQ = %"UVuf"\n", (UV)CvOUTSIDE_SEQ(sv));
eacbb379
DD		 1973 if (!CvISXSUB(sv)) {
1974 Perl_dump_indent(aTHX_ level, file, " PADLIST = 0x%"UVxf"\n", PTR2UV(CvPADLIST(sv)));
1975 if (nest < maxnest) {
1976 do_dump_pad(level+1, file, CvPADLIST(sv), 0);
1977 }
3967c732 1978 }
eacbb379 1979 else
db6e00bd 1980 Perl_dump_indent(aTHX_ level, file, " HSCXT = 0x%p\n", CvHSCXT(sv));
3967c732 1981 {
b9ac451d 1982 const CV * const outside = CvOUTSIDE(sv);
2ef28da1 1983 Perl_dump_indent(aTHX_ level, file, " OUTSIDE = 0x%"UVxf" (%s)\n",
57def98f 1984 PTR2UV(outside),
cf2093f6
JH		 1985 (!outside ? "null"
1986 : CvANON(outside) ? "ANON"
1987 : (outside == PL_main_cv) ? "MAIN"
1988 : CvUNIQUE(outside) ? "UNIQUE"
b24fda9d
BF		 1989 : CvGV(outside) ?
1990 generic_pv_escape(
1991 newSVpvs_flags("", SVs_TEMP),
1992 GvNAME(CvGV(outside)),
1993 GvNAMELEN(CvGV(outside)),
1994 GvNAMEUTF8(CvGV(outside)))
1995 : "UNDEFINED"));
3967c732 1996 }
704b97aa
FC		 1997 if (CvOUTSIDE(sv)
1998 && (nest < maxnest && (CvCLONE(sv) || CvCLONED(sv))))
ad64d0ec 1999 do_sv_dump(level+1, file, MUTABLE_SV(CvOUTSIDE(sv)), nest+1, maxnest, dumpops, pvlim);
3967c732 2000 break;
e0bbf362 2001
926fc7b6
DM		 2002 case SVt_PVGV:
2003 case SVt_PVLV:
b9ac451d
AL		 2004 if (type == SVt_PVLV) {
2005 Perl_dump_indent(aTHX_ level, file, " TYPE = %c\n", LvTYPE(sv));
2006 Perl_dump_indent(aTHX_ level, file, " TARGOFF = %"IVdf"\n", (IV)LvTARGOFF(sv));
2007 Perl_dump_indent(aTHX_ level, file, " TARGLEN = %"IVdf"\n", (IV)LvTARGLEN(sv));
2008 Perl_dump_indent(aTHX_ level, file, " TARG = 0x%"UVxf"\n", PTR2UV(LvTARG(sv)));
83f78d1a 2009 Perl_dump_indent(aTHX_ level, file, " FLAGS = %"IVdf"\n", (IV)LvFLAGS(sv));
305b8651 2010 if (isALPHA_FOLD_NE(LvTYPE(sv), 't'))
b9ac451d
AL		 2011 do_sv_dump(level+1, file, LvTARG(sv), nest+1, maxnest,
2012 dumpops, pvlim);
2013 }
8d919b0a 2014 if (isREGEXP(sv)) goto dumpregexp;
926fc7b6
DM		 2015 if (!isGV_with_GP(sv))
2016 break;
0eb335df
BF		 2017 {
2018 SV* tmpsv = newSVpvs_flags("", SVs_TEMP);
2019 Perl_dump_indent(aTHX_ level, file, " NAME = \"%s\"\n",
2020 generic_pv_escape(tmpsv, GvNAME(sv),
2021 GvNAMELEN(sv),
2022 GvNAMEUTF8(sv)));
2023 }
57def98f 2024 Perl_dump_indent(aTHX_ level, file, " NAMELEN = %"IVdf"\n", (IV)GvNAMELEN(sv));
3967c732 2025 do_hv_dump (level, file, " GvSTASH", GvSTASH(sv));
be108a01 2026 Perl_dump_indent(aTHX_ level, file, " FLAGS = 0x%"UVxf"\n", (UV)GvFLAGS(sv));
57def98f 2027 Perl_dump_indent(aTHX_ level, file, " GP = 0x%"UVxf"\n", PTR2UV(GvGP(sv)));
f472eb5c
GS		 2028 if (!GvGP(sv))
2029 break;
57def98f
JH		 2030 Perl_dump_indent(aTHX_ level, file, " SV = 0x%"UVxf"\n", PTR2UV(GvSV(sv)));
2031 Perl_dump_indent(aTHX_ level, file, " REFCNT = %"IVdf"\n", (IV)GvREFCNT(sv));
2032 Perl_dump_indent(aTHX_ level, file, " IO = 0x%"UVxf"\n", PTR2UV(GvIOp(sv)));
2033 Perl_dump_indent(aTHX_ level, file, " FORM = 0x%"UVxf" \n", PTR2UV(GvFORM(sv)));
2034 Perl_dump_indent(aTHX_ level, file, " AV = 0x%"UVxf"\n", PTR2UV(GvAV(sv)));
2035 Perl_dump_indent(aTHX_ level, file, " HV = 0x%"UVxf"\n", PTR2UV(GvHV(sv)));
2036 Perl_dump_indent(aTHX_ level, file, " CV = 0x%"UVxf"\n", PTR2UV(GvCV(sv)));
2037 Perl_dump_indent(aTHX_ level, file, " CVGEN = 0x%"UVxf"\n", (UV)GvCVGEN(sv));
008009b0
FC		 2038 Perl_dump_indent(aTHX_ level, file, " GPFLAGS = 0x%"UVxf
2039 " (%s)\n",
2040 (UV)GvGPFLAGS(sv),
2041 GvALIASED_SV(sv) ? "ALIASED_SV" : "");
57def98f 2042 Perl_dump_indent(aTHX_ level, file, " LINE = %"IVdf"\n", (IV)GvLINE(sv));
b195d487 2043 Perl_dump_indent(aTHX_ level, file, " FILE = \"%s\"\n", GvFILE(sv));
3967c732
JD		 2044 do_gv_dump (level, file, " EGV", GvEGV(sv));
2045 break;
2046 case SVt_PVIO:
57def98f
JH		 2047 Perl_dump_indent(aTHX_ level, file, " IFP = 0x%"UVxf"\n", PTR2UV(IoIFP(sv)));
2048 Perl_dump_indent(aTHX_ level, file, " OFP = 0x%"UVxf"\n", PTR2UV(IoOFP(sv)));
2049 Perl_dump_indent(aTHX_ level, file, " DIRP = 0x%"UVxf"\n", PTR2UV(IoDIRP(sv)));
2050 Perl_dump_indent(aTHX_ level, file, " LINES = %"IVdf"\n", (IV)IoLINES(sv));
2051 Perl_dump_indent(aTHX_ level, file, " PAGE = %"IVdf"\n", (IV)IoPAGE(sv));
2052 Perl_dump_indent(aTHX_ level, file, " PAGE_LEN = %"IVdf"\n", (IV)IoPAGE_LEN(sv));
2053 Perl_dump_indent(aTHX_ level, file, " LINES_LEFT = %"IVdf"\n", (IV)IoLINES_LEFT(sv));
27533608 2054 if (IoTOP_NAME(sv))
cea2e8a9 2055 Perl_dump_indent(aTHX_ level, file, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
9ba1f565
NC		 2056 if (!IoTOP_GV(sv) || SvTYPE(IoTOP_GV(sv)) == SVt_PVGV)
2057 do_gv_dump (level, file, " TOP_GV", IoTOP_GV(sv));
2058 else {
2059 Perl_dump_indent(aTHX_ level, file, " TOP_GV = 0x%"UVxf"\n",
2060 PTR2UV(IoTOP_GV(sv)));
ad64d0ec
NC		 2061 do_sv_dump (level+1, file, MUTABLE_SV(IoTOP_GV(sv)), nest+1,
2062 maxnest, dumpops, pvlim);
9ba1f565
NC		 2063 }
2064 /* Source filters hide things that are not GVs in these three, so let's
2065 be careful out there. */
27533608 2066 if (IoFMT_NAME(sv))
cea2e8a9 2067 Perl_dump_indent(aTHX_ level, file, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
9ba1f565
NC		 2068 if (!IoFMT_GV(sv) || SvTYPE(IoFMT_GV(sv)) == SVt_PVGV)
2069 do_gv_dump (level, file, " FMT_GV", IoFMT_GV(sv));
2070 else {
2071 Perl_dump_indent(aTHX_ level, file, " FMT_GV = 0x%"UVxf"\n",
2072 PTR2UV(IoFMT_GV(sv)));
ad64d0ec
NC		 2073 do_sv_dump (level+1, file, MUTABLE_SV(IoFMT_GV(sv)), nest+1,
2074 maxnest, dumpops, pvlim);
9ba1f565 2075 }
27533608 2076 if (IoBOTTOM_NAME(sv))
cea2e8a9 2077 Perl_dump_indent(aTHX_ level, file, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
9ba1f565
NC		 2078 if (!IoBOTTOM_GV(sv) || SvTYPE(IoBOTTOM_GV(sv)) == SVt_PVGV)
2079 do_gv_dump (level, file, " BOTTOM_GV", IoBOTTOM_GV(sv));
2080 else {
2081 Perl_dump_indent(aTHX_ level, file, " BOTTOM_GV = 0x%"UVxf"\n",
2082 PTR2UV(IoBOTTOM_GV(sv)));
ad64d0ec
NC		 2083 do_sv_dump (level+1, file, MUTABLE_SV(IoBOTTOM_GV(sv)), nest+1,
2084 maxnest, dumpops, pvlim);
9ba1f565 2085 }
27533608 2086 if (isPRINT(IoTYPE(sv)))
cea2e8a9 2087 Perl_dump_indent(aTHX_ level, file, " TYPE = '%c'\n", IoTYPE(sv));
27533608 2088 else
cea2e8a9 2089 Perl_dump_indent(aTHX_ level, file, " TYPE = '\\%o'\n", IoTYPE(sv));
57def98f 2090 Perl_dump_indent(aTHX_ level, file, " FLAGS = 0x%"UVxf"\n", (UV)IoFLAGS(sv));
3967c732 2091 break;
206ee256 2092 case SVt_REGEXP:
8d919b0a 2093 dumpregexp:
d63e6659 2094 {
8d919b0a 2095 struct regexp * const r = ReANY((REGEXP*)sv);
e3e400ec
YO		 2096
2097#define SV_SET_STRINGIFY_REGEXP_FLAGS(d,flags,names) STMT_START { \
ec16d31f 2098 sv_setpv(d,""); \
e3e400ec 2099 append_flags(d, flags, names); \
ec16d31f
YO		 2100 if (SvCUR(d) > 0 && *(SvEND(d) - 1) == ',') { \
2101 SvCUR_set(d, SvCUR(d) - 1); \
2102 SvPVX(d)[SvCUR(d)] = '\0'; \
2103 } \
2104} STMT_END
e3e400ec 2105 SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->compflags,regexp_extflags_names);
dbc200c5
YO		 2106 Perl_dump_indent(aTHX_ level, file, " COMPFLAGS = 0x%"UVxf" (%s)\n",
2107 (UV)(r->compflags), SvPVX_const(d));
2108
e3e400ec 2109 SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->extflags,regexp_extflags_names);
d63e6659 2110 Perl_dump_indent(aTHX_ level, file, " EXTFLAGS = 0x%"UVxf" (%s)\n",
dbc200c5
YO		 2111 (UV)(r->extflags), SvPVX_const(d));
2112
e3e400ec
YO		 2113 Perl_dump_indent(aTHX_ level, file, " ENGINE = 0x%"UVxf" (%s)\n",
2114 PTR2UV(r->engine), (r->engine == &PL_core_reg_engine) ? "STANDARD" : "PLUG-IN" );
2115 if (r->engine == &PL_core_reg_engine) {
2116 SV_SET_STRINGIFY_REGEXP_FLAGS(d,r->intflags,regexp_core_intflags_names);
2117 Perl_dump_indent(aTHX_ level, file, " INTFLAGS = 0x%"UVxf" (%s)\n",
2118 (UV)(r->intflags), SvPVX_const(d));
2119 } else {
2120 Perl_dump_indent(aTHX_ level, file, " INTFLAGS = 0x%"UVxf"\n",
d63e6659 2121 (UV)(r->intflags));
e3e400ec
YO		 2122 }
2123#undef SV_SET_STRINGIFY_REGEXP_FLAGS
d63e6659
DM		 2124 Perl_dump_indent(aTHX_ level, file, " NPARENS = %"UVuf"\n",
2125 (UV)(r->nparens));
2126 Perl_dump_indent(aTHX_ level, file, " LASTPAREN = %"UVuf"\n",
2127 (UV)(r->lastparen));
2128 Perl_dump_indent(aTHX_ level, file, " LASTCLOSEPAREN = %"UVuf"\n",
2129 (UV)(r->lastcloseparen));
2130 Perl_dump_indent(aTHX_ level, file, " MINLEN = %"IVdf"\n",
2131 (IV)(r->minlen));
2132 Perl_dump_indent(aTHX_ level, file, " MINLENRET = %"IVdf"\n",
2133 (IV)(r->minlenret));
2134 Perl_dump_indent(aTHX_ level, file, " GOFS = %"UVuf"\n",
2135 (UV)(r->gofs));
2136 Perl_dump_indent(aTHX_ level, file, " PRE_PREFIX = %"UVuf"\n",
2137 (UV)(r->pre_prefix));
d63e6659
DM		 2138 Perl_dump_indent(aTHX_ level, file, " SUBLEN = %"IVdf"\n",
2139 (IV)(r->sublen));
6502e081
DM		 2140 Perl_dump_indent(aTHX_ level, file, " SUBOFFSET = %"IVdf"\n",
2141 (IV)(r->suboffset));
2142 Perl_dump_indent(aTHX_ level, file, " SUBCOFFSET = %"IVdf"\n",
2143 (IV)(r->subcoffset));
d63e6659
DM		 2144 if (r->subbeg)
2145 Perl_dump_indent(aTHX_ level, file, " SUBBEG = 0x%"UVxf" %s\n",
2146 PTR2UV(r->subbeg),
2147 pv_display(d, r->subbeg, r->sublen, 50, pvlim));
2148 else
2149 Perl_dump_indent(aTHX_ level, file, " SUBBEG = 0x0\n");
d63e6659
DM		 2150 Perl_dump_indent(aTHX_ level, file, " MOTHER_RE = 0x%"UVxf"\n",
2151 PTR2UV(r->mother_re));
01ffd0f1
FC		 2152 if (nest < maxnest && r->mother_re)
2153 do_sv_dump(level+1, file, (SV *)r->mother_re, nest+1,
2154 maxnest, dumpops, pvlim);
d63e6659
DM		 2155 Perl_dump_indent(aTHX_ level, file, " PAREN_NAMES = 0x%"UVxf"\n",
2156 PTR2UV(r->paren_names));
2157 Perl_dump_indent(aTHX_ level, file, " SUBSTRS = 0x%"UVxf"\n",
2158 PTR2UV(r->substrs));
2159 Perl_dump_indent(aTHX_ level, file, " PPRIVATE = 0x%"UVxf"\n",
2160 PTR2UV(r->pprivate));
2161 Perl_dump_indent(aTHX_ level, file, " OFFS = 0x%"UVxf"\n",
2162 PTR2UV(r->offs));
d63c20f2
DM		 2163 Perl_dump_indent(aTHX_ level, file, " QR_ANONCV = 0x%"UVxf"\n",
2164 PTR2UV(r->qr_anoncv));
db2c6cb3 2165#ifdef PERL_ANY_COW
d63e6659
DM		 2166 Perl_dump_indent(aTHX_ level, file, " SAVED_COPY = 0x%"UVxf"\n",
2167 PTR2UV(r->saved_copy));
2168#endif
2169 }
206ee256 2170 break;
3967c732 2171 }
5f954473 2172 SvREFCNT_dec_NN(d);
3967c732
JD		 2173}
2174
36b1c95c
MH		 2175/*
2176=for apidoc sv_dump
2177
2178Dumps the contents of an SV to the C<STDERR> filehandle.
2179
2180For an example of its output, see L<Devel::Peek>.
2181
2182=cut
2183*/
2184
3967c732 2185void
864dbfa3 2186Perl_sv_dump(pTHX_ SV *sv)
3967c732 2187{
7918f24d
NC		 2188 PERL_ARGS_ASSERT_SV_DUMP;
2189
d1029faa
JP		 2190 if (SvROK(sv))
2191 do_sv_dump(0, Perl_debug_log, sv, 0, 4, 0, 0);
2192 else
2193 do_sv_dump(0, Perl_debug_log, sv, 0, 0, 0, 0);
8d063cd8 2194}
bd16a5f0
IZ		 2195
2196int
2197Perl_runops_debug(pTHX)
2198{
2199 if (!PL_op) {
9b387841 2200 Perl_ck_warner_d(aTHX_ packWARN(WARN_DEBUGGING), "NULL OP IN RUN");
bd16a5f0
IZ		 2201 return 0;
2202 }
2203
9f3673fb 2204 DEBUG_l(Perl_deb(aTHX_ "Entering new RUNOPS level\n"));
bd16a5f0 2205 do {
75d476e2
S		 2206#ifdef PERL_TRACE_OPS
2207 ++PL_op_exec_cnt[PL_op->op_type];
2208#endif
bd16a5f0 2209 if (PL_debug) {
b9ac451d 2210 if (PL_watchaddr && (*PL_watchaddr != PL_watchok))
bd16a5f0
IZ		 2211 PerlIO_printf(Perl_debug_log,
2212 "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
2213 PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
2214 PTR2UV(*PL_watchaddr));
d6721266
DM		 2215 if (DEBUG_s_TEST_) {
2216 if (DEBUG_v_TEST_) {
2217 PerlIO_printf(Perl_debug_log, "\n");
2218 deb_stack_all();
2219 }
2220 else
2221 debstack();
2222 }
2223
2224
bd16a5f0
IZ		 2225 if (DEBUG_t_TEST_) debop(PL_op);
2226 if (DEBUG_P_TEST_) debprof(PL_op);
2227 }
fe83c362
SM		 2228
2229 OP_ENTRY_PROBE(OP_NAME(PL_op));
16c91539 2230 } while ((PL_op = PL_op->op_ppaddr(aTHX)));
9f3673fb 2231 DEBUG_l(Perl_deb(aTHX_ "leaving RUNOPS level\n"));
47c9d59f 2232 PERL_ASYNC_CHECK();
bd16a5f0
IZ		 2233
2234 TAINT_NOT;
2235 return 0;
2236}
2237
f9b02e42
DM		 2238
2239/* print the names of the n lexical vars starting at pad offset off */
2240
2241void
2242S_deb_padvar(pTHX_ PADOFFSET off, int n, bool paren)
2243{
2244 PADNAME *sv;
2245 CV * const cv = deb_curcv(cxstack_ix);
2246 PADNAMELIST *comppad = NULL;
2247 int i;
2248
2249 if (cv) {
2250 PADLIST * const padlist = CvPADLIST(cv);
2251 comppad = PadlistNAMES(padlist);
2252 }
2253 if (paren)
2254 PerlIO_printf(Perl_debug_log, "(");
2255 for (i = 0; i < n; i++) {
2256 if (comppad && (sv = padnamelist_fetch(comppad, off + i)))
2257 PerlIO_printf(Perl_debug_log, "%"PNf, PNfARG(sv));
2258 else
2259 PerlIO_printf(Perl_debug_log, "[%"UVuf"]",
2260 (UV)(off+i));
2261 if (i < n - 1)
2262 PerlIO_printf(Perl_debug_log, ",");
2263 }
2264 if (paren)
2265 PerlIO_printf(Perl_debug_log, ")");
2266}
2267
2268
fedf30e1
DM		 2269/* append to the out SV, the name of the lexical at offset off in the CV
2270 * cv */
2271
2272void
2273S_append_padvar(pTHX_ PADOFFSET off, CV *cv, SV *out, int n,
2274 bool paren, bool is_scalar)
2275{
2276 PADNAME *sv;
2277 PADNAMELIST *namepad = NULL;
2278 int i;
2279
2280 if (cv) {
2281 PADLIST * const padlist = CvPADLIST(cv);
2282 namepad = PadlistNAMES(padlist);
2283 }
2284
2285 if (paren)
2286 sv_catpvs_nomg(out, "(");
2287 for (i = 0; i < n; i++) {
2288 if (namepad && (sv = padnamelist_fetch(namepad, off + i)))
2289 {
2290 STRLEN cur = SvCUR(out);
2291 Perl_sv_catpvf(aTHX_ out, "[%"PNf, PNfARG(sv));
2292 if (is_scalar)
2293 SvPVX(out)[cur] = '$';
2294 }
2295 else
2296 Perl_sv_catpvf(aTHX_ out, "[%"UVuf"]", (UV)(off+i));
2297 if (i < n - 1)
2298 sv_catpvs_nomg(out, ",");
2299 }
2300 if (paren)
2301 sv_catpvs_nomg(out, "(");
2302}
2303
2304
2305void
2306S_print_gv_name(pTHX_ GV *gv, SV *out, char sigil)
2307{
2308 SV *sv;
2309 if (!gv) {
2310 sv_catpvs_nomg(out, "<NULLGV>");
2311 return;
2312 }
2313 sv = newSV(0);
2314 gv_fullname4(sv, gv, NULL, FALSE);
2315 Perl_sv_catpvf(aTHX_ out, "%c%-p", sigil, sv);
2316 SvREFCNT_dec_NN(sv);
2317}
2318
2319#ifdef USE_ITHREADS
2320# define ITEM_SV(item) *av_fetch(comppad, (item)->pad_offset, FALSE);
2321#else
2322# define ITEM_SV(item) UNOP_AUX_item_sv(item)
2323#endif
2324
2325
2326/* return a temporary SV containing a stringified representation of
2327 * the op_aux field of a UNOP_AUX op, associated with CV cv
2328 */
2329
2330SV*
2331Perl_unop_aux_stringify(pTHX_ const OP *o, CV *cv)
2332{
2333 UNOP_AUX_item *items = cUNOP_AUXo->op_aux;
2334 UV actions = items->uv;
2335 SV *sv;
2336 bool last = 0;
2337 bool is_hash = FALSE;
2338 int derefs = 0;
2339 SV *out = sv_2mortal(newSVpv("",0));
2340#ifdef USE_ITHREADS
2341 PADLIST * const padlist = CvPADLIST(cv);
500f40f5 2342 PAD *comppad = PadlistARRAY(padlist)[1];
fedf30e1
DM		 2343#endif
2344
2345 PERL_ARGS_ASSERT_UNOP_AUX_STRINGIFY;
2346
2347 while (!last) {
2348 switch (actions & MDEREF_ACTION_MASK) {
2349
2350 case MDEREF_reload:
2351 actions = (++items)->uv;
2352 continue;
2353
2354 case MDEREF_HV_padhv_helem:
2355 is_hash = TRUE;
2356 case MDEREF_AV_padav_aelem:
2357 derefs = 1;
2358 S_append_padvar(aTHX_ (++items)->pad_offset, cv, out, 1, 0, 1);
2359 goto do_elem;
2360
2361 case MDEREF_HV_gvhv_helem:
2362 is_hash = TRUE;
2363 case MDEREF_AV_gvav_aelem:
2364 derefs = 1;
2365 sv = ITEM_SV(++items);
2366 S_print_gv_name(aTHX_ (GV*)sv, out, '$');
2367 goto do_elem;
2368
2369 case MDEREF_HV_gvsv_vivify_rv2hv_helem:
2370 is_hash = TRUE;
2371 case MDEREF_AV_gvsv_vivify_rv2av_aelem:
2372 sv = ITEM_SV(++items);
2373 S_print_gv_name(aTHX_ (GV*)sv, out, '$');
2374 goto do_vivify_rv2xv_elem;
2375
2376 case MDEREF_HV_padsv_vivify_rv2hv_helem:
2377 is_hash = TRUE;
2378 case MDEREF_AV_padsv_vivify_rv2av_aelem:
2379 S_append_padvar(aTHX_ (++items)->pad_offset, cv, out, 1, 0, 1);
2380 goto do_vivify_rv2xv_elem;
2381
2382 case MDEREF_HV_pop_rv2hv_helem:
2383 case MDEREF_HV_vivify_rv2hv_helem:
2384 is_hash = TRUE;
2385 do_vivify_rv2xv_elem:
2386 case MDEREF_AV_pop_rv2av_aelem:
2387 case MDEREF_AV_vivify_rv2av_aelem:
2388 if (!derefs++)
2389 sv_catpvs_nomg(out, "->");
2390 do_elem:
2391 if ((actions & MDEREF_INDEX_MASK)== MDEREF_INDEX_none) {
2392 sv_catpvs_nomg(out, "->");
2393 last = 1;
2394 break;
2395 }
2396
2397 sv_catpvn_nomg(out, (is_hash ? "{" : "["), 1);
2398 switch (actions & MDEREF_INDEX_MASK) {
2399 case MDEREF_INDEX_const:
2400 if (is_hash) {
2401 STRLEN cur;
2402 char *s;
2403 sv = ITEM_SV(++items);
2404 s = SvPV(sv, cur);
2405 pv_pretty(out, s, cur, 30,
2406 NULL, NULL,
2407 (PERL_PV_PRETTY_NOCLEAR
2408 |PERL_PV_PRETTY_QUOTE
2409 |PERL_PV_PRETTY_ELLIPSES));
2410 }
2411 else
2412 Perl_sv_catpvf(aTHX_ out, "%"IVdf, (++items)->iv);
2413 break;
2414 case MDEREF_INDEX_padsv:
2415 S_append_padvar(aTHX_ (++items)->pad_offset, cv, out, 1, 0, 1);
2416 break;
2417 case MDEREF_INDEX_gvsv:
2418 sv = ITEM_SV(++items);
2419 S_print_gv_name(aTHX_ (GV*)sv, out, '$');
2420 break;
2421 }
2422 sv_catpvn_nomg(out, (is_hash ? "}" : "]"), 1);
2423
2424 if (actions & MDEREF_FLAG_last)
2425 last = 1;
2426 is_hash = FALSE;
2427
2428 break;
2429
2430 default:
2431 PerlIO_printf(Perl_debug_log, "UNKNOWN(%d)",
2432 (int)(actions & MDEREF_ACTION_MASK));
2433 last = 1;
2434 break;
2435
2436 } /* switch */
2437
2438 actions >>= MDEREF_SHIFT;
2439 } /* while */
2440 return out;
2441}
2442
2443
bd16a5f0 2444I32
6867be6d 2445Perl_debop(pTHX_ const OP *o)
bd16a5f0 2446{
7918f24d
NC		 2447 PERL_ARGS_ASSERT_DEBOP;
2448
1045810a
IZ		 2449 if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
2450 return 0;
2451
bd16a5f0
IZ		 2452 Perl_deb(aTHX_ "%s", OP_NAME(o));
2453 switch (o->op_type) {
2454 case OP_CONST:
996c9baa 2455 case OP_HINTSEVAL:
6cefa69e 2456 /* With ITHREADS, consts are stored in the pad, and the right pad
7367e658 2457 * may not be active here, so check.
6cefa69e 2458 * Looks like only during compiling the pads are illegal.
7367e658 2459 */
6cefa69e
RU		 2460#ifdef USE_ITHREADS
2461 if ((((SVOP*)o)->op_sv) || !IN_PERL_COMPILETIME)
2462#endif
7367e658 2463 PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
bd16a5f0
IZ		 2464 break;
2465 case OP_GVSV:
2466 case OP_GV:
8333ca1a 2467 if (cGVOPo_gv && isGV(cGVOPo_gv)) {
b9ac451d 2468 SV * const sv = newSV(0);
bd61b366 2469 gv_fullname3(sv, cGVOPo_gv, NULL);
93524f2b 2470 PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen_const(sv));
5f954473 2471 SvREFCNT_dec_NN(sv);
bd16a5f0 2472 }
8333ca1a
FC		 2473 else if (cGVOPo_gv) {
2474 SV * const sv = newSV(0);
2475 assert(SvROK(cGVOPo_gv));
2476 assert(SvTYPE(SvRV(cGVOPo_gv)) == SVt_PVCV);
2477 PerlIO_printf(Perl_debug_log, "(cv ref: %s)",
ecf05a58 2478 SvPV_nolen_const(cv_name((CV *)SvRV(cGVOPo_gv),sv,0)));
8333ca1a
FC		 2479 SvREFCNT_dec_NN(sv);
2480 }
bd16a5f0
IZ		 2481 else
2482 PerlIO_printf(Perl_debug_log, "(NULL)");
2483 break;
a7fd8ef6 2484
bd16a5f0
IZ		 2485 case OP_PADSV:
2486 case OP_PADAV:
2487 case OP_PADHV:
f9b02e42
DM		 2488 S_deb_padvar(aTHX_ o->op_targ, 1, 1);
2489 break;
fedf30e1 2490
a7fd8ef6 2491 case OP_PADRANGE:
f9b02e42
DM		 2492 S_deb_padvar(aTHX_ o->op_targ,
2493 o->op_private & OPpPADRANGE_COUNTMASK, 1);
bd16a5f0 2494 break;
a7fd8ef6 2495
fedf30e1
DM		 2496 case OP_MULTIDEREF:
2497 PerlIO_printf(Perl_debug_log, "(%-p)",
2498 unop_aux_stringify(o, deb_curcv(cxstack_ix)));
2499 break;
2500
bd16a5f0 2501 default:
091ab601 2502 break;
bd16a5f0
IZ		 2503 }
2504 PerlIO_printf(Perl_debug_log, "\n");
2505 return 0;
2506}
2507
2508STATIC CV*
61f9802b 2509S_deb_curcv(pTHX_ const I32 ix)
bd16a5f0 2510{
b9ac451d 2511 const PERL_CONTEXT * const cx = &cxstack[ix];
bd16a5f0
IZ		 2512 if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
2513 return cx->blk_sub.cv;
2514 else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
676a678a 2515 return cx->blk_eval.cv;
bd16a5f0
IZ		 2516 else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
2517 return PL_main_cv;
2518 else if (ix <= 0)
601f1833 2519 return NULL;
bd16a5f0
IZ		 2520 else
2521 return deb_curcv(ix - 1);
2522}
2523
2524void
2525Perl_watch(pTHX_ char **addr)
2526{
7918f24d
NC		 2527 PERL_ARGS_ASSERT_WATCH;
2528
bd16a5f0
IZ		 2529 PL_watchaddr = addr;
2530 PL_watchok = *addr;
2531 PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
2532 PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
2533}
2534
2535STATIC void
e1ec3a88 2536S_debprof(pTHX_ const OP *o)
bd16a5f0 2537{
7918f24d
NC		 2538 PERL_ARGS_ASSERT_DEBPROF;
2539
61f9802b 2540 if (!DEBUG_J_TEST_ && CopSTASH_eq(PL_curcop, PL_debstash))
1045810a 2541 return;
bd16a5f0 2542 if (!PL_profiledata)
a02a5408 2543 Newxz(PL_profiledata, MAXO, U32);
bd16a5f0
IZ		 2544 ++PL_profiledata[o->op_type];
2545}
2546
2547void
2548Perl_debprofdump(pTHX)
2549{
2550 unsigned i;
2551 if (!PL_profiledata)
2552 return;
2553 for (i = 0; i < MAXO; i++) {
2554 if (PL_profiledata[i])
2555 PerlIO_printf(Perl_debug_log,
2556 "%5lu %s\n", (unsigned long)PL_profiledata[i],
2557 PL_op_name[i]);
2558 }
2559}
66610fdd 2560
3b721df9 2561
66610fdd
RGS		 2562/*
2563 * Local variables:
2564 * c-indentation-style: bsd
2565 * c-basic-offset: 4
14d04a33 2566 * indent-tabs-mode: nil
66610fdd
RGS		 2567 * End:
2568 *
14d04a33 2569 * ex: set ts=8 sts=4 sw=4 et:
37442d52 2570 */
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