xref: /onnv-gate/usr/src/cmd/perl/5.8.4/distrib/dump.c (revision 0:68f95e015346) 
1 /*    dump.c
2  *
3  *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4  *    2000, 2001, 2002, 2003, 2004, 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 
16 #include "EXTERN.h"
17 #define PERL_IN_DUMP_C
18 #include "perl.h"
19 #include "regcomp.h"
20 
21 void
Perl_dump_indent(pTHX_ I32 level,PerlIO * file,const char * pat,...)22 Perl_dump_indent(pTHX_ I32 level, PerlIO *file, const char* pat, ...)
23 {
24     va_list args;
25     va_start(args, pat);
26     dump_vindent(level, file, pat, &args);
27     va_end(args);
28 }
29 
30 void
Perl_dump_vindent(pTHX_ I32 level,PerlIO * file,const char * pat,va_list * args)31 Perl_dump_vindent(pTHX_ I32 level, PerlIO *file, const char* pat, va_list *args)
32 {
33     PerlIO_printf(file, "%*s", (int)(level*PL_dumpindent), "");
34     PerlIO_vprintf(file, pat, *args);
35 }
36 
37 void
Perl_dump_all(pTHX)38 Perl_dump_all(pTHX)
39 {
40     PerlIO_setlinebuf(Perl_debug_log);
41     if (PL_main_root)
42 	op_dump(PL_main_root);
43     dump_packsubs(PL_defstash);
44 }
45 
46 void
Perl_dump_packsubs(pTHX_ HV * stash)47 Perl_dump_packsubs(pTHX_ HV *stash)
48 {
49     I32	i;
50     HE	*entry;
51 
52     if (!HvARRAY(stash))
53 	return;
54     for (i = 0; i <= (I32) HvMAX(stash); i++) {
55 	for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
56 	    GV *gv = (GV*)HeVAL(entry);
57 	    HV *hv;
58 	    if (SvTYPE(gv) != SVt_PVGV || !GvGP(gv))
59 		continue;
60 	    if (GvCVu(gv))
61 		dump_sub(gv);
62 	    if (GvFORM(gv))
63 		dump_form(gv);
64 	    if (HeKEY(entry)[HeKLEN(entry)-1] == ':'
65 		&& (hv = GvHV(gv)) && hv != PL_defstash)
66 		dump_packsubs(hv);		/* nested package */
67 	}
68     }
69 }
70 
71 void
Perl_dump_sub(pTHX_ GV * gv)72 Perl_dump_sub(pTHX_ GV *gv)
73 {
74     SV *sv = sv_newmortal();
75 
76     gv_fullname3(sv, gv, Nullch);
77     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nSUB %s = ", SvPVX(sv));
78     if (CvXSUB(GvCV(gv)))
79 	Perl_dump_indent(aTHX_ 0, Perl_debug_log, "(xsub 0x%"UVxf" %d)\n",
80 	    PTR2UV(CvXSUB(GvCV(gv))),
81 	    (int)CvXSUBANY(GvCV(gv)).any_i32);
82     else if (CvROOT(GvCV(gv)))
83 	op_dump(CvROOT(GvCV(gv)));
84     else
85 	Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
86 }
87 
88 void
Perl_dump_form(pTHX_ GV * gv)89 Perl_dump_form(pTHX_ GV *gv)
90 {
91     SV *sv = sv_newmortal();
92 
93     gv_fullname3(sv, gv, Nullch);
94     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "\nFORMAT %s = ", SvPVX(sv));
95     if (CvROOT(GvFORM(gv)))
96 	op_dump(CvROOT(GvFORM(gv)));
97     else
98 	Perl_dump_indent(aTHX_ 0, Perl_debug_log, "<undef>\n");
99 }
100 
101 void
Perl_dump_eval(pTHX)102 Perl_dump_eval(pTHX)
103 {
104     op_dump(PL_eval_root);
105 }
106 
107 char *
Perl_pv_display(pTHX_ SV * dsv,char * pv,STRLEN cur,STRLEN len,STRLEN pvlim)108 Perl_pv_display(pTHX_ SV *dsv, char *pv, STRLEN cur, STRLEN len, STRLEN pvlim)
109 {
110     int truncated = 0;
111     int nul_terminated = len > cur && pv[cur] == '\0';
112 
113     sv_setpvn(dsv, "\"", 1);
114     for (; cur--; pv++) {
115 	if (pvlim && SvCUR(dsv) >= pvlim) {
116             truncated++;
117 	    break;
118         }
119 	switch (*pv) {
120 	case '\t': sv_catpvn(dsv, "\\t", 2);  break;
121 	case '\n': sv_catpvn(dsv, "\\n", 2);  break;
122 	case '\r': sv_catpvn(dsv, "\\r", 2);  break;
123 	case '\f': sv_catpvn(dsv, "\\f", 2);  break;
124 	case '"':  sv_catpvn(dsv, "\\\"", 2); break;
125 	case '\\': sv_catpvn(dsv, "\\\\", 2); break;
126 	default:
127 	    if (isPRINT(*pv))
128 		sv_catpvn(dsv, pv, 1);
129 	    else if (cur && isDIGIT(*(pv+1)))
130 		Perl_sv_catpvf(aTHX_ dsv, "\\%03o", (U8)*pv);
131 	    else
132 		Perl_sv_catpvf(aTHX_ dsv, "\\%o", (U8)*pv);
133         }
134     }
135     sv_catpvn(dsv, "\"", 1);
136     if (truncated)
137 	sv_catpvn(dsv, "...", 3);
138     if (nul_terminated)
139 	sv_catpvn(dsv, "\\0", 2);
140 
141     return SvPVX(dsv);
142 }
143 
144 char *
Perl_sv_peek(pTHX_ SV * sv)145 Perl_sv_peek(pTHX_ SV *sv)
146 {
147     SV *t = sv_newmortal();
148     STRLEN n_a;
149     int unref = 0;
150 
151     sv_setpvn(t, "", 0);
152   retry:
153     if (!sv) {
154 	sv_catpv(t, "VOID");
155 	goto finish;
156     }
157     else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
158 	sv_catpv(t, "WILD");
159 	goto finish;
160     }
161     else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes || sv == &PL_sv_placeholder) {
162 	if (sv == &PL_sv_undef) {
163 	    sv_catpv(t, "SV_UNDEF");
164 	    if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
165 				 SVs_GMG|SVs_SMG|SVs_RMG)) &&
166 		SvREADONLY(sv))
167 		goto finish;
168 	}
169 	else if (sv == &PL_sv_no) {
170 	    sv_catpv(t, "SV_NO");
171 	    if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
172 				 SVs_GMG|SVs_SMG|SVs_RMG)) &&
173 		!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
174 				  SVp_POK|SVp_NOK)) &&
175 		SvCUR(sv) == 0 &&
176 		SvNVX(sv) == 0.0)
177 		goto finish;
178 	}
179 	else if (sv == &PL_sv_yes) {
180 	    sv_catpv(t, "SV_YES");
181 	    if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
182 				 SVs_GMG|SVs_SMG|SVs_RMG)) &&
183 		!(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
184 				  SVp_POK|SVp_NOK)) &&
185 		SvCUR(sv) == 1 &&
186 		SvPVX(sv) && *SvPVX(sv) == '1' &&
187 		SvNVX(sv) == 1.0)
188 		goto finish;
189 	}
190 	else {
191 	    sv_catpv(t, "SV_PLACEHOLDER");
192 	    if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
193 				 SVs_GMG|SVs_SMG|SVs_RMG)) &&
194 		SvREADONLY(sv))
195 		goto finish;
196 	}
197 	sv_catpv(t, ":");
198     }
199     else if (SvREFCNT(sv) == 0) {
200 	sv_catpv(t, "(");
201 	unref++;
202     }
203     else if (DEBUG_R_TEST_) {
204 	int is_tmp = 0;
205 	I32 ix;
206 	/* is this SV on the tmps stack? */
207 	for (ix=PL_tmps_ix; ix>=0; ix--) {
208 	    if (PL_tmps_stack[ix] == sv) {
209 		is_tmp = 1;
210 		break;
211 	    }
212 	}
213 	if (SvREFCNT(sv) > 1)
214 	    Perl_sv_catpvf(aTHX_ t, "<%"UVuf"%s>", (UV)SvREFCNT(sv),
215 		    is_tmp ? "T" : "");
216 	else if (is_tmp)
217 	    sv_catpv(t, "<T>");
218     }
219 
220     if (SvROK(sv)) {
221 	sv_catpv(t, "\\");
222 	if (SvCUR(t) + unref > 10) {
223 	    SvCUR(t) = unref + 3;
224 	    *SvEND(t) = '\0';
225 	    sv_catpv(t, "...");
226 	    goto finish;
227 	}
228 	sv = (SV*)SvRV(sv);
229 	goto retry;
230     }
231     switch (SvTYPE(sv)) {
232     default:
233 	sv_catpv(t, "FREED");
234 	goto finish;
235 
236     case SVt_NULL:
237 	sv_catpv(t, "UNDEF");
238 	goto finish;
239     case SVt_IV:
240 	sv_catpv(t, "IV");
241 	break;
242     case SVt_NV:
243 	sv_catpv(t, "NV");
244 	break;
245     case SVt_RV:
246 	sv_catpv(t, "RV");
247 	break;
248     case SVt_PV:
249 	sv_catpv(t, "PV");
250 	break;
251     case SVt_PVIV:
252 	sv_catpv(t, "PVIV");
253 	break;
254     case SVt_PVNV:
255 	sv_catpv(t, "PVNV");
256 	break;
257     case SVt_PVMG:
258 	sv_catpv(t, "PVMG");
259 	break;
260     case SVt_PVLV:
261 	sv_catpv(t, "PVLV");
262 	break;
263     case SVt_PVAV:
264 	sv_catpv(t, "AV");
265 	break;
266     case SVt_PVHV:
267 	sv_catpv(t, "HV");
268 	break;
269     case SVt_PVCV:
270 	if (CvGV(sv))
271 	    Perl_sv_catpvf(aTHX_ t, "CV(%s)", GvNAME(CvGV(sv)));
272 	else
273 	    sv_catpv(t, "CV()");
274 	goto finish;
275     case SVt_PVGV:
276 	sv_catpv(t, "GV");
277 	break;
278     case SVt_PVBM:
279 	sv_catpv(t, "BM");
280 	break;
281     case SVt_PVFM:
282 	sv_catpv(t, "FM");
283 	break;
284     case SVt_PVIO:
285 	sv_catpv(t, "IO");
286 	break;
287     }
288 
289     if (SvPOKp(sv)) {
290 	if (!SvPVX(sv))
291 	    sv_catpv(t, "(null)");
292 	else {
293 	    SV *tmp = newSVpvn("", 0);
294 	    sv_catpv(t, "(");
295 	    if (SvOOK(sv))
296 		Perl_sv_catpvf(aTHX_ t, "[%s]", pv_display(tmp, SvPVX(sv)-SvIVX(sv), SvIVX(sv), 0, 127));
297 	    Perl_sv_catpvf(aTHX_ t, "%s)", pv_display(tmp, SvPVX(sv), SvCUR(sv), SvLEN(sv), 127));
298 	    if (SvUTF8(sv))
299 		Perl_sv_catpvf(aTHX_ t, " [UTF8 \"%s\"]",
300 			       sv_uni_display(tmp, sv, 8 * sv_len_utf8(sv),
301 					      UNI_DISPLAY_QQ));
302 	    SvREFCNT_dec(tmp);
303 	}
304     }
305     else if (SvNOKp(sv)) {
306 	STORE_NUMERIC_LOCAL_SET_STANDARD();
307 	Perl_sv_catpvf(aTHX_ t, "(%"NVgf")",SvNVX(sv));
308 	RESTORE_NUMERIC_LOCAL();
309     }
310     else if (SvIOKp(sv)) {
311 	if (SvIsUV(sv))
312 	    Perl_sv_catpvf(aTHX_ t, "(%"UVuf")", (UV)SvUVX(sv));
313 	else
314             Perl_sv_catpvf(aTHX_ t, "(%"IVdf")", (IV)SvIVX(sv));
315     }
316     else
317 	sv_catpv(t, "()");
318 
319   finish:
320     if (unref) {
321 	while (unref--)
322 	    sv_catpv(t, ")");
323     }
324     return SvPV(t, n_a);
325 }
326 
327 void
Perl_do_pmop_dump(pTHX_ I32 level,PerlIO * file,PMOP * pm)328 Perl_do_pmop_dump(pTHX_ I32 level, PerlIO *file, PMOP *pm)
329 {
330     char ch;
331 
332     if (!pm) {
333 	Perl_dump_indent(aTHX_ level, file, "{}\n");
334 	return;
335     }
336     Perl_dump_indent(aTHX_ level, file, "{\n");
337     level++;
338     if (pm->op_pmflags & PMf_ONCE)
339 	ch = '?';
340     else
341 	ch = '/';
342     if (PM_GETRE(pm))
343 	Perl_dump_indent(aTHX_ level, file, "PMf_PRE %c%s%c%s\n",
344 	     ch, PM_GETRE(pm)->precomp, ch,
345 	     (pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : "");
346     else
347 	Perl_dump_indent(aTHX_ level, file, "PMf_PRE (RUNTIME)\n");
348     if (pm->op_type != OP_PUSHRE && pm->op_pmreplroot) {
349 	Perl_dump_indent(aTHX_ level, file, "PMf_REPL = ");
350 	op_dump(pm->op_pmreplroot);
351     }
352     if (pm->op_pmflags || (PM_GETRE(pm) && PM_GETRE(pm)->check_substr)) {
353 	SV *tmpsv = newSVpvn("", 0);
354 	if (pm->op_pmdynflags & PMdf_USED)
355 	    sv_catpv(tmpsv, ",USED");
356 	if (pm->op_pmdynflags & PMdf_TAINTED)
357 	    sv_catpv(tmpsv, ",TAINTED");
358 	if (pm->op_pmflags & PMf_ONCE)
359 	    sv_catpv(tmpsv, ",ONCE");
360 	if (PM_GETRE(pm) && PM_GETRE(pm)->check_substr
361 	    && !(PM_GETRE(pm)->reganch & ROPT_NOSCAN))
362 	    sv_catpv(tmpsv, ",SCANFIRST");
363 	if (PM_GETRE(pm) && PM_GETRE(pm)->check_substr
364 	    && PM_GETRE(pm)->reganch & ROPT_CHECK_ALL)
365 	    sv_catpv(tmpsv, ",ALL");
366 	if (pm->op_pmflags & PMf_SKIPWHITE)
367 	    sv_catpv(tmpsv, ",SKIPWHITE");
368 	if (pm->op_pmflags & PMf_CONST)
369 	    sv_catpv(tmpsv, ",CONST");
370 	if (pm->op_pmflags & PMf_KEEP)
371 	    sv_catpv(tmpsv, ",KEEP");
372 	if (pm->op_pmflags & PMf_GLOBAL)
373 	    sv_catpv(tmpsv, ",GLOBAL");
374 	if (pm->op_pmflags & PMf_CONTINUE)
375 	    sv_catpv(tmpsv, ",CONTINUE");
376 	if (pm->op_pmflags & PMf_RETAINT)
377 	    sv_catpv(tmpsv, ",RETAINT");
378 	if (pm->op_pmflags & PMf_EVAL)
379 	    sv_catpv(tmpsv, ",EVAL");
380 	Perl_dump_indent(aTHX_ level, file, "PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
381 	SvREFCNT_dec(tmpsv);
382     }
383 
384     Perl_dump_indent(aTHX_ level-1, file, "}\n");
385 }
386 
387 void
Perl_pmop_dump(pTHX_ PMOP * pm)388 Perl_pmop_dump(pTHX_ PMOP *pm)
389 {
390     do_pmop_dump(0, Perl_debug_log, pm);
391 }
392 
393 void
Perl_do_op_dump(pTHX_ I32 level,PerlIO * file,OP * o)394 Perl_do_op_dump(pTHX_ I32 level, PerlIO *file, OP *o)
395 {
396     Perl_dump_indent(aTHX_ level, file, "{\n");
397     level++;
398     if (o->op_seq)
399 	PerlIO_printf(file, "%-4d", o->op_seq);
400     else
401 	PerlIO_printf(file, "    ");
402     PerlIO_printf(file,
403 		  "%*sTYPE = %s  ===> ",
404 		  (int)(PL_dumpindent*level-4), "", OP_NAME(o));
405     if (o->op_next) {
406 	if (o->op_seq)
407 	    PerlIO_printf(file, "%d\n", o->op_next->op_seq);
408 	else
409 	    PerlIO_printf(file, "(%d)\n", o->op_next->op_seq);
410     }
411     else
412 	PerlIO_printf(file, "DONE\n");
413     if (o->op_targ) {
414 	if (o->op_type == OP_NULL)
415 	{
416 	    Perl_dump_indent(aTHX_ level, file, "  (was %s)\n", PL_op_name[o->op_targ]);
417 	    if (o->op_targ == OP_NEXTSTATE)
418 	    {
419 		if (CopLINE(cCOPo))
420 		    Perl_dump_indent(aTHX_ level, file, "LINE = %"UVf"\n",
421 				     (UV)CopLINE(cCOPo));
422 		if (CopSTASHPV(cCOPo))
423 		    Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
424 				     CopSTASHPV(cCOPo));
425 		if (cCOPo->cop_label)
426 		    Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
427 				     cCOPo->cop_label);
428 	    }
429 	}
430 	else
431 	    Perl_dump_indent(aTHX_ level, file, "TARG = %ld\n", (long)o->op_targ);
432     }
433 #ifdef DUMPADDR
434     Perl_dump_indent(aTHX_ level, file, "ADDR = 0x%"UVxf" => 0x%"UVxf"\n", (UV)o, (UV)o->op_next);
435 #endif
436     if (o->op_flags) {
437 	SV *tmpsv = newSVpvn("", 0);
438 	switch (o->op_flags & OPf_WANT) {
439 	case OPf_WANT_VOID:
440 	    sv_catpv(tmpsv, ",VOID");
441 	    break;
442 	case OPf_WANT_SCALAR:
443 	    sv_catpv(tmpsv, ",SCALAR");
444 	    break;
445 	case OPf_WANT_LIST:
446 	    sv_catpv(tmpsv, ",LIST");
447 	    break;
448 	default:
449 	    sv_catpv(tmpsv, ",UNKNOWN");
450 	    break;
451 	}
452 	if (o->op_flags & OPf_KIDS)
453 	    sv_catpv(tmpsv, ",KIDS");
454 	if (o->op_flags & OPf_PARENS)
455 	    sv_catpv(tmpsv, ",PARENS");
456 	if (o->op_flags & OPf_STACKED)
457 	    sv_catpv(tmpsv, ",STACKED");
458 	if (o->op_flags & OPf_REF)
459 	    sv_catpv(tmpsv, ",REF");
460 	if (o->op_flags & OPf_MOD)
461 	    sv_catpv(tmpsv, ",MOD");
462 	if (o->op_flags & OPf_SPECIAL)
463 	    sv_catpv(tmpsv, ",SPECIAL");
464 	Perl_dump_indent(aTHX_ level, file, "FLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : "");
465 	SvREFCNT_dec(tmpsv);
466     }
467     if (o->op_private) {
468 	SV *tmpsv = newSVpvn("", 0);
469 	if (PL_opargs[o->op_type] & OA_TARGLEX) {
470 	    if (o->op_private & OPpTARGET_MY)
471 		sv_catpv(tmpsv, ",TARGET_MY");
472 	}
473 	else if (o->op_type == OP_LEAVESUB ||
474 		 o->op_type == OP_LEAVE ||
475 		 o->op_type == OP_LEAVESUBLV ||
476 		 o->op_type == OP_LEAVEWRITE) {
477 	    if (o->op_private & OPpREFCOUNTED)
478 		sv_catpv(tmpsv, ",REFCOUNTED");
479 	}
480         else if (o->op_type == OP_AASSIGN) {
481 	    if (o->op_private & OPpASSIGN_COMMON)
482 		sv_catpv(tmpsv, ",COMMON");
483 	    if (o->op_private & OPpASSIGN_HASH)
484 		sv_catpv(tmpsv, ",HASH");
485 	}
486 	else if (o->op_type == OP_SASSIGN) {
487 	    if (o->op_private & OPpASSIGN_BACKWARDS)
488 		sv_catpv(tmpsv, ",BACKWARDS");
489 	}
490 	else if (o->op_type == OP_TRANS) {
491 	    if (o->op_private & OPpTRANS_SQUASH)
492 		sv_catpv(tmpsv, ",SQUASH");
493 	    if (o->op_private & OPpTRANS_DELETE)
494 		sv_catpv(tmpsv, ",DELETE");
495 	    if (o->op_private & OPpTRANS_COMPLEMENT)
496 		sv_catpv(tmpsv, ",COMPLEMENT");
497 	    if (o->op_private & OPpTRANS_IDENTICAL)
498 		sv_catpv(tmpsv, ",IDENTICAL");
499 	    if (o->op_private & OPpTRANS_GROWS)
500 		sv_catpv(tmpsv, ",GROWS");
501 	}
502 	else if (o->op_type == OP_REPEAT) {
503 	    if (o->op_private & OPpREPEAT_DOLIST)
504 		sv_catpv(tmpsv, ",DOLIST");
505 	}
506 	else if (o->op_type == OP_ENTERSUB ||
507 		 o->op_type == OP_RV2SV ||
508 		 o->op_type == OP_GVSV ||
509 		 o->op_type == OP_RV2AV ||
510 		 o->op_type == OP_RV2HV ||
511 		 o->op_type == OP_RV2GV ||
512 		 o->op_type == OP_AELEM ||
513 		 o->op_type == OP_HELEM )
514 	{
515 	    if (o->op_type == OP_ENTERSUB) {
516 		if (o->op_private & OPpENTERSUB_AMPER)
517 		    sv_catpv(tmpsv, ",AMPER");
518 		if (o->op_private & OPpENTERSUB_DB)
519 		    sv_catpv(tmpsv, ",DB");
520 		if (o->op_private & OPpENTERSUB_HASTARG)
521 		    sv_catpv(tmpsv, ",HASTARG");
522 		if (o->op_private & OPpENTERSUB_NOPAREN)
523 		    sv_catpv(tmpsv, ",NOPAREN");
524 		if (o->op_private & OPpENTERSUB_INARGS)
525 		    sv_catpv(tmpsv, ",INARGS");
526 		if (o->op_private & OPpENTERSUB_NOMOD)
527 		    sv_catpv(tmpsv, ",NOMOD");
528 	    }
529 	    else {
530 		switch (o->op_private & OPpDEREF) {
531 	    case OPpDEREF_SV:
532 		sv_catpv(tmpsv, ",SV");
533 		break;
534 	    case OPpDEREF_AV:
535 		sv_catpv(tmpsv, ",AV");
536 		break;
537 	    case OPpDEREF_HV:
538 		sv_catpv(tmpsv, ",HV");
539 		break;
540 	    }
541 		if (o->op_private & OPpMAYBE_LVSUB)
542 		    sv_catpv(tmpsv, ",MAYBE_LVSUB");
543 	    }
544 	    if (o->op_type == OP_AELEM || o->op_type == OP_HELEM) {
545 		if (o->op_private & OPpLVAL_DEFER)
546 		    sv_catpv(tmpsv, ",LVAL_DEFER");
547 	    }
548 	    else {
549 		if (o->op_private & HINT_STRICT_REFS)
550 		    sv_catpv(tmpsv, ",STRICT_REFS");
551 		if (o->op_private & OPpOUR_INTRO)
552 		    sv_catpv(tmpsv, ",OUR_INTRO");
553 	    }
554 	}
555 	else if (o->op_type == OP_CONST) {
556 	    if (o->op_private & OPpCONST_BARE)
557 		sv_catpv(tmpsv, ",BARE");
558 	    if (o->op_private & OPpCONST_STRICT)
559 		sv_catpv(tmpsv, ",STRICT");
560 	    if (o->op_private & OPpCONST_ARYBASE)
561 		sv_catpv(tmpsv, ",ARYBASE");
562 	    if (o->op_private & OPpCONST_WARNING)
563 		sv_catpv(tmpsv, ",WARNING");
564 	    if (o->op_private & OPpCONST_ENTERED)
565 		sv_catpv(tmpsv, ",ENTERED");
566 	}
567 	else if (o->op_type == OP_FLIP) {
568 	    if (o->op_private & OPpFLIP_LINENUM)
569 		sv_catpv(tmpsv, ",LINENUM");
570 	}
571 	else if (o->op_type == OP_FLOP) {
572 	    if (o->op_private & OPpFLIP_LINENUM)
573 		sv_catpv(tmpsv, ",LINENUM");
574 	}
575 	else if (o->op_type == OP_RV2CV) {
576 	    if (o->op_private & OPpLVAL_INTRO)
577 		sv_catpv(tmpsv, ",INTRO");
578 	}
579 	else if (o->op_type == OP_GV) {
580 	    if (o->op_private & OPpEARLY_CV)
581 		sv_catpv(tmpsv, ",EARLY_CV");
582 	}
583 	else if (o->op_type == OP_LIST) {
584 	    if (o->op_private & OPpLIST_GUESSED)
585 		sv_catpv(tmpsv, ",GUESSED");
586 	}
587 	else if (o->op_type == OP_DELETE) {
588 	    if (o->op_private & OPpSLICE)
589 		sv_catpv(tmpsv, ",SLICE");
590 	}
591 	else if (o->op_type == OP_EXISTS) {
592 	    if (o->op_private & OPpEXISTS_SUB)
593 		sv_catpv(tmpsv, ",EXISTS_SUB");
594 	}
595 	else if (o->op_type == OP_SORT) {
596 	    if (o->op_private & OPpSORT_NUMERIC)
597 		sv_catpv(tmpsv, ",NUMERIC");
598 	    if (o->op_private & OPpSORT_INTEGER)
599 		sv_catpv(tmpsv, ",INTEGER");
600 	    if (o->op_private & OPpSORT_REVERSE)
601 		sv_catpv(tmpsv, ",REVERSE");
602 	}
603 	else if (o->op_type == OP_THREADSV) {
604 	    if (o->op_private & OPpDONE_SVREF)
605 		sv_catpv(tmpsv, ",SVREF");
606 	}
607 	else if (o->op_type == OP_OPEN || o->op_type == OP_BACKTICK) {
608 	    if (o->op_private & OPpOPEN_IN_RAW)
609 		sv_catpv(tmpsv, ",IN_RAW");
610 	    if (o->op_private & OPpOPEN_IN_CRLF)
611 		sv_catpv(tmpsv, ",IN_CRLF");
612 	    if (o->op_private & OPpOPEN_OUT_RAW)
613 		sv_catpv(tmpsv, ",OUT_RAW");
614 	    if (o->op_private & OPpOPEN_OUT_CRLF)
615 		sv_catpv(tmpsv, ",OUT_CRLF");
616 	}
617 	else if (o->op_type == OP_EXIT) {
618 	    if (o->op_private & OPpEXIT_VMSISH)
619 		sv_catpv(tmpsv, ",EXIT_VMSISH");
620 	    if (o->op_private & OPpHUSH_VMSISH)
621 		sv_catpv(tmpsv, ",HUSH_VMSISH");
622 	}
623 	else if (o->op_type == OP_DIE) {
624 	    if (o->op_private & OPpHUSH_VMSISH)
625 		sv_catpv(tmpsv, ",HUSH_VMSISH");
626 	}
627 	else if (OP_IS_FILETEST_ACCESS(o)) {
628 	     if (o->op_private & OPpFT_ACCESS)
629 		  sv_catpv(tmpsv, ",FT_ACCESS");
630 	}
631 	if (o->op_flags & OPf_MOD && o->op_private & OPpLVAL_INTRO)
632 	    sv_catpv(tmpsv, ",INTRO");
633 	if (SvCUR(tmpsv))
634 	    Perl_dump_indent(aTHX_ level, file, "PRIVATE = (%s)\n", SvPVX(tmpsv) + 1);
635 	SvREFCNT_dec(tmpsv);
636     }
637 
638     switch (o->op_type) {
639     case OP_AELEMFAST:
640     case OP_GVSV:
641     case OP_GV:
642 #ifdef USE_ITHREADS
643 	Perl_dump_indent(aTHX_ level, file, "PADIX = %" IVdf "\n", (IV)cPADOPo->op_padix);
644 #else
645 	if ( ! PL_op->op_flags & OPf_SPECIAL) { /* not lexical */
646 	    if (cSVOPo->op_sv) {
647 		SV *tmpsv = NEWSV(0,0);
648 		STRLEN n_a;
649 		ENTER;
650 		SAVEFREESV(tmpsv);
651 		gv_fullname3(tmpsv, (GV*)cSVOPo->op_sv, Nullch);
652 		Perl_dump_indent(aTHX_ level, file, "GV = %s\n", SvPV(tmpsv, n_a));
653 		LEAVE;
654 	    }
655 	    else
656 		Perl_dump_indent(aTHX_ level, file, "GV = NULL\n");
657 	}
658 #endif
659 	break;
660     case OP_CONST:
661     case OP_METHOD_NAMED:
662 #ifndef USE_ITHREADS
663 	/* with ITHREADS, consts are stored in the pad, and the right pad
664 	 * may not be active here, so skip */
665 	Perl_dump_indent(aTHX_ level, file, "SV = %s\n", SvPEEK(cSVOPo_sv));
666 #endif
667 	break;
668     case OP_SETSTATE:
669     case OP_NEXTSTATE:
670     case OP_DBSTATE:
671 	if (CopLINE(cCOPo))
672 	    Perl_dump_indent(aTHX_ level, file, "LINE = %"UVf"\n",
673 			     (UV)CopLINE(cCOPo));
674 	if (CopSTASHPV(cCOPo))
675 	    Perl_dump_indent(aTHX_ level, file, "PACKAGE = \"%s\"\n",
676 			     CopSTASHPV(cCOPo));
677 	if (cCOPo->cop_label)
678 	    Perl_dump_indent(aTHX_ level, file, "LABEL = \"%s\"\n",
679 			     cCOPo->cop_label);
680 	break;
681     case OP_ENTERLOOP:
682 	Perl_dump_indent(aTHX_ level, file, "REDO ===> ");
683 	if (cLOOPo->op_redoop)
684 	    PerlIO_printf(file, "%d\n", cLOOPo->op_redoop->op_seq);
685 	else
686 	    PerlIO_printf(file, "DONE\n");
687 	Perl_dump_indent(aTHX_ level, file, "NEXT ===> ");
688 	if (cLOOPo->op_nextop)
689 	    PerlIO_printf(file, "%d\n", cLOOPo->op_nextop->op_seq);
690 	else
691 	    PerlIO_printf(file, "DONE\n");
692 	Perl_dump_indent(aTHX_ level, file, "LAST ===> ");
693 	if (cLOOPo->op_lastop)
694 	    PerlIO_printf(file, "%d\n", cLOOPo->op_lastop->op_seq);
695 	else
696 	    PerlIO_printf(file, "DONE\n");
697 	break;
698     case OP_COND_EXPR:
699     case OP_RANGE:
700     case OP_MAPWHILE:
701     case OP_GREPWHILE:
702     case OP_OR:
703     case OP_AND:
704 	Perl_dump_indent(aTHX_ level, file, "OTHER ===> ");
705 	if (cLOGOPo->op_other)
706 	    PerlIO_printf(file, "%d\n", cLOGOPo->op_other->op_seq);
707 	else
708 	    PerlIO_printf(file, "DONE\n");
709 	break;
710     case OP_PUSHRE:
711     case OP_MATCH:
712     case OP_QR:
713     case OP_SUBST:
714 	do_pmop_dump(level, file, cPMOPo);
715 	break;
716     case OP_LEAVE:
717     case OP_LEAVEEVAL:
718     case OP_LEAVESUB:
719     case OP_LEAVESUBLV:
720     case OP_LEAVEWRITE:
721     case OP_SCOPE:
722 	if (o->op_private & OPpREFCOUNTED)
723 	    Perl_dump_indent(aTHX_ level, file, "REFCNT = %"UVuf"\n", (UV)o->op_targ);
724 	break;
725     default:
726 	break;
727     }
728     if (o->op_flags & OPf_KIDS) {
729 	OP *kid;
730 	for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling)
731 	    do_op_dump(level, file, kid);
732     }
733     Perl_dump_indent(aTHX_ level-1, file, "}\n");
734 }
735 
736 void
Perl_op_dump(pTHX_ OP * o)737 Perl_op_dump(pTHX_ OP *o)
738 {
739     do_op_dump(0, Perl_debug_log, o);
740 }
741 
742 void
Perl_gv_dump(pTHX_ GV * gv)743 Perl_gv_dump(pTHX_ GV *gv)
744 {
745     SV *sv;
746 
747     if (!gv) {
748 	PerlIO_printf(Perl_debug_log, "{}\n");
749 	return;
750     }
751     sv = sv_newmortal();
752     PerlIO_printf(Perl_debug_log, "{\n");
753     gv_fullname3(sv, gv, Nullch);
754     Perl_dump_indent(aTHX_ 1, Perl_debug_log, "GV_NAME = %s", SvPVX(sv));
755     if (gv != GvEGV(gv)) {
756 	gv_efullname3(sv, GvEGV(gv), Nullch);
757 	Perl_dump_indent(aTHX_ 1, Perl_debug_log, "-> %s", SvPVX(sv));
758     }
759     PerlIO_putc(Perl_debug_log, '\n');
760     Perl_dump_indent(aTHX_ 0, Perl_debug_log, "}\n");
761 }
762 
763 
764 /* map magic types to the symbolic names
765  * (with the PERL_MAGIC_ prefixed stripped)
766  */
767 
768 static struct { char type; char *name; } magic_names[] = {
769 	{ PERL_MAGIC_sv,             "sv(\\0)" },
770 	{ PERL_MAGIC_arylen,         "arylen(#)" },
771 	{ PERL_MAGIC_glob,           "glob(*)" },
772 	{ PERL_MAGIC_pos,            "pos(.)" },
773 	{ PERL_MAGIC_backref,        "backref(<)" },
774 	{ PERL_MAGIC_overload,       "overload(A)" },
775 	{ PERL_MAGIC_bm,             "bm(B)" },
776 	{ PERL_MAGIC_regdata,        "regdata(D)" },
777 	{ PERL_MAGIC_env,            "env(E)" },
778 	{ PERL_MAGIC_isa,            "isa(I)" },
779 	{ PERL_MAGIC_dbfile,         "dbfile(L)" },
780 	{ PERL_MAGIC_shared,         "shared(N)" },
781 	{ PERL_MAGIC_tied,           "tied(P)" },
782 	{ PERL_MAGIC_sig,            "sig(S)" },
783 	{ PERL_MAGIC_uvar,           "uvar(U)" },
784 	{ PERL_MAGIC_overload_elem,  "overload_elem(a)" },
785 	{ PERL_MAGIC_overload_table, "overload_table(c)" },
786 	{ PERL_MAGIC_regdatum,       "regdatum(d)" },
787 	{ PERL_MAGIC_envelem,        "envelem(e)" },
788 	{ PERL_MAGIC_fm,             "fm(f)" },
789 	{ PERL_MAGIC_regex_global,   "regex_global(g)" },
790 	{ PERL_MAGIC_isaelem,        "isaelem(i)" },
791 	{ PERL_MAGIC_nkeys,          "nkeys(k)" },
792 	{ PERL_MAGIC_dbline,         "dbline(l)" },
793 	{ PERL_MAGIC_mutex,          "mutex(m)" },
794 	{ PERL_MAGIC_shared_scalar,  "shared_scalar(n)" },
795 	{ PERL_MAGIC_collxfrm,       "collxfrm(o)" },
796 	{ PERL_MAGIC_tiedelem,       "tiedelem(p)" },
797 	{ PERL_MAGIC_tiedscalar,     "tiedscalar(q)" },
798 	{ PERL_MAGIC_qr,             "qr(r)" },
799 	{ PERL_MAGIC_sigelem,        "sigelem(s)" },
800 	{ PERL_MAGIC_taint,          "taint(t)" },
801 	{ PERL_MAGIC_uvar_elem,      "uvar_elem(v)" },
802 	{ PERL_MAGIC_vec,            "vec(v)" },
803 	{ PERL_MAGIC_vstring,        "v-string(V)" },
804 	{ PERL_MAGIC_utf8,           "utf8(w)" },
805 	{ PERL_MAGIC_substr,         "substr(x)" },
806 	{ PERL_MAGIC_defelem,        "defelem(y)" },
807 	{ PERL_MAGIC_ext,            "ext(~)" },
808 	/* this null string terminates the list */
809 	{ 0,                         0 },
810 };
811 
812 void
Perl_do_magic_dump(pTHX_ I32 level,PerlIO * file,MAGIC * mg,I32 nest,I32 maxnest,bool dumpops,STRLEN pvlim)813 Perl_do_magic_dump(pTHX_ I32 level, PerlIO *file, MAGIC *mg, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
814 {
815     for (; mg; mg = mg->mg_moremagic) {
816  	Perl_dump_indent(aTHX_ level, file,
817 			 "  MAGIC = 0x%"UVxf"\n", PTR2UV(mg));
818  	if (mg->mg_virtual) {
819             MGVTBL *v = mg->mg_virtual;
820  	    char *s = 0;
821  	    if      (v == &PL_vtbl_sv)         s = "sv";
822             else if (v == &PL_vtbl_env)        s = "env";
823             else if (v == &PL_vtbl_envelem)    s = "envelem";
824             else if (v == &PL_vtbl_sig)        s = "sig";
825             else if (v == &PL_vtbl_sigelem)    s = "sigelem";
826             else if (v == &PL_vtbl_pack)       s = "pack";
827             else if (v == &PL_vtbl_packelem)   s = "packelem";
828             else if (v == &PL_vtbl_dbline)     s = "dbline";
829             else if (v == &PL_vtbl_isa)        s = "isa";
830             else if (v == &PL_vtbl_arylen)     s = "arylen";
831             else if (v == &PL_vtbl_glob)       s = "glob";
832             else if (v == &PL_vtbl_mglob)      s = "mglob";
833             else if (v == &PL_vtbl_nkeys)      s = "nkeys";
834             else if (v == &PL_vtbl_taint)      s = "taint";
835             else if (v == &PL_vtbl_substr)     s = "substr";
836             else if (v == &PL_vtbl_vec)        s = "vec";
837             else if (v == &PL_vtbl_pos)        s = "pos";
838             else if (v == &PL_vtbl_bm)         s = "bm";
839             else if (v == &PL_vtbl_fm)         s = "fm";
840             else if (v == &PL_vtbl_uvar)       s = "uvar";
841             else if (v == &PL_vtbl_defelem)    s = "defelem";
842 #ifdef USE_LOCALE_COLLATE
843 	    else if (v == &PL_vtbl_collxfrm)   s = "collxfrm";
844 #endif
845 	    else if (v == &PL_vtbl_amagic)     s = "amagic";
846 	    else if (v == &PL_vtbl_amagicelem) s = "amagicelem";
847 	    else if (v == &PL_vtbl_backref)    s = "backref";
848 	    else if (v == &PL_vtbl_utf8)       s = "utf8";
849 	    if (s)
850 	        Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = &PL_vtbl_%s\n", s);
851 	    else
852 	        Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = 0x%"UVxf"\n", PTR2UV(v));
853         }
854 	else
855 	    Perl_dump_indent(aTHX_ level, file, "    MG_VIRTUAL = 0\n");
856 
857 	if (mg->mg_private)
858 	    Perl_dump_indent(aTHX_ level, file, "    MG_PRIVATE = %d\n", mg->mg_private);
859 
860 	{
861 	    int n;
862 	    char *name = 0;
863 	    for (n=0; magic_names[n].name; n++) {
864 		if (mg->mg_type == magic_names[n].type) {
865 		    name = magic_names[n].name;
866 		    break;
867 		}
868 	    }
869 	    if (name)
870 		Perl_dump_indent(aTHX_ level, file,
871 				"    MG_TYPE = PERL_MAGIC_%s\n", name);
872 	    else
873 		Perl_dump_indent(aTHX_ level, file,
874 				"    MG_TYPE = UNKNOWN(\\%o)\n", mg->mg_type);
875 	}
876 
877         if (mg->mg_flags) {
878             Perl_dump_indent(aTHX_ level, file, "    MG_FLAGS = 0x%02X\n", mg->mg_flags);
879 	    if (mg->mg_type == PERL_MAGIC_envelem &&
880 		mg->mg_flags & MGf_TAINTEDDIR)
881 	        Perl_dump_indent(aTHX_ level, file, "      TAINTEDDIR\n");
882 	    if (mg->mg_flags & MGf_REFCOUNTED)
883 	        Perl_dump_indent(aTHX_ level, file, "      REFCOUNTED\n");
884             if (mg->mg_flags & MGf_GSKIP)
885 	        Perl_dump_indent(aTHX_ level, file, "      GSKIP\n");
886 	    if (mg->mg_type == PERL_MAGIC_regex_global &&
887 		mg->mg_flags & MGf_MINMATCH)
888 	        Perl_dump_indent(aTHX_ level, file, "      MINMATCH\n");
889         }
890 	if (mg->mg_obj) {
891 	    Perl_dump_indent(aTHX_ level, file, "    MG_OBJ = 0x%"UVxf"\n", PTR2UV(mg->mg_obj));
892 	    if (mg->mg_flags & MGf_REFCOUNTED)
893 		do_sv_dump(level+2, file, mg->mg_obj, nest+1, maxnest, dumpops, pvlim); /* MG is already +1 */
894 	}
895         if (mg->mg_len)
896 	    Perl_dump_indent(aTHX_ level, file, "    MG_LEN = %ld\n", (long)mg->mg_len);
897         if (mg->mg_ptr) {
898 	    Perl_dump_indent(aTHX_ level, file, "    MG_PTR = 0x%"UVxf, PTR2UV(mg->mg_ptr));
899 	    if (mg->mg_len >= 0) {
900 		 if (mg->mg_type != PERL_MAGIC_utf8) {
901 		      SV *sv = newSVpvn("", 0);
902 		      PerlIO_printf(file, " %s", pv_display(sv, mg->mg_ptr, mg->mg_len, 0, pvlim));
903 		      SvREFCNT_dec(sv);
904 		 }
905             }
906 	    else if (mg->mg_len == HEf_SVKEY) {
907 		PerlIO_puts(file, " => HEf_SVKEY\n");
908 		do_sv_dump(level+2, file, (SV*)((mg)->mg_ptr), nest+1, maxnest, dumpops, pvlim); /* MG is already +1 */
909 		continue;
910 	    }
911 	    else
912 		PerlIO_puts(file, " ???? - please notify IZ");
913             PerlIO_putc(file, '\n');
914         }
915 	if (mg->mg_type == PERL_MAGIC_utf8) {
916 	     STRLEN *cache = (STRLEN *) mg->mg_ptr;
917 	     if (cache) {
918 		  IV i;
919 		  for (i = 0; i < PERL_MAGIC_UTF8_CACHESIZE; i++)
920 		       Perl_dump_indent(aTHX_ level, file,
921 					"      %2"IVdf": %"UVuf" -> %"UVuf"\n",
922 					i,
923 					(UV)cache[i * 2],
924 					(UV)cache[i * 2 + 1]);
925 	     }
926 	}
927     }
928 }
929 
930 void
Perl_magic_dump(pTHX_ MAGIC * mg)931 Perl_magic_dump(pTHX_ MAGIC *mg)
932 {
933     do_magic_dump(0, Perl_debug_log, mg, 0, 0, 0, 0);
934 }
935 
936 void
Perl_do_hv_dump(pTHX_ I32 level,PerlIO * file,char * name,HV * sv)937 Perl_do_hv_dump(pTHX_ I32 level, PerlIO *file, char *name, HV *sv)
938 {
939     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
940     if (sv && HvNAME(sv))
941 	PerlIO_printf(file, "\t\"%s\"\n", HvNAME(sv));
942     else
943 	PerlIO_putc(file, '\n');
944 }
945 
946 void
Perl_do_gv_dump(pTHX_ I32 level,PerlIO * file,char * name,GV * sv)947 Perl_do_gv_dump(pTHX_ I32 level, PerlIO *file, char *name, GV *sv)
948 {
949     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
950     if (sv && GvNAME(sv))
951 	PerlIO_printf(file, "\t\"%s\"\n", GvNAME(sv));
952     else
953 	PerlIO_putc(file, '\n');
954 }
955 
956 void
Perl_do_gvgv_dump(pTHX_ I32 level,PerlIO * file,char * name,GV * sv)957 Perl_do_gvgv_dump(pTHX_ I32 level, PerlIO *file, char *name, GV *sv)
958 {
959     Perl_dump_indent(aTHX_ level, file, "%s = 0x%"UVxf, name, PTR2UV(sv));
960     if (sv && GvNAME(sv)) {
961 	PerlIO_printf(file, "\t\"");
962 	if (GvSTASH(sv))
963 	    PerlIO_printf(file, "%s\" :: \"", HvNAME(GvSTASH(sv)));
964 	PerlIO_printf(file, "%s\"\n", GvNAME(sv));
965     }
966     else
967 	PerlIO_putc(file, '\n');
968 }
969 
970 void
Perl_do_sv_dump(pTHX_ I32 level,PerlIO * file,SV * sv,I32 nest,I32 maxnest,bool dumpops,STRLEN pvlim)971 Perl_do_sv_dump(pTHX_ I32 level, PerlIO *file, SV *sv, I32 nest, I32 maxnest, bool dumpops, STRLEN pvlim)
972 {
973     SV *d;
974     char *s;
975     U32 flags;
976     U32 type;
977 
978     if (!sv) {
979 	Perl_dump_indent(aTHX_ level, file, "SV = 0\n");
980 	return;
981     }
982 
983     flags = SvFLAGS(sv);
984     type = SvTYPE(sv);
985 
986     d = Perl_newSVpvf(aTHX_
987 		   "(0x%"UVxf") at 0x%"UVxf"\n%*s  REFCNT = %"IVdf"\n%*s  FLAGS = (",
988 		   PTR2UV(SvANY(sv)), PTR2UV(sv),
989 		   (int)(PL_dumpindent*level), "", (IV)SvREFCNT(sv),
990 		   (int)(PL_dumpindent*level), "");
991 
992     if (flags & SVs_PADBUSY)	sv_catpv(d, "PADBUSY,");
993     if (flags & SVs_PADTMP)	sv_catpv(d, "PADTMP,");
994     if (flags & SVs_PADMY)	sv_catpv(d, "PADMY,");
995     if (flags & SVs_TEMP)	sv_catpv(d, "TEMP,");
996     if (flags & SVs_OBJECT)	sv_catpv(d, "OBJECT,");
997     if (flags & SVs_GMG)	sv_catpv(d, "GMG,");
998     if (flags & SVs_SMG)	sv_catpv(d, "SMG,");
999     if (flags & SVs_RMG)	sv_catpv(d, "RMG,");
1000 
1001     if (flags & SVf_IOK)	sv_catpv(d, "IOK,");
1002     if (flags & SVf_NOK)	sv_catpv(d, "NOK,");
1003     if (flags & SVf_POK)	sv_catpv(d, "POK,");
1004     if (flags & SVf_ROK)  {
1005     				sv_catpv(d, "ROK,");
1006 	if (SvWEAKREF(sv))	sv_catpv(d, "WEAKREF,");
1007     }
1008     if (flags & SVf_OOK)	sv_catpv(d, "OOK,");
1009     if (flags & SVf_FAKE)	sv_catpv(d, "FAKE,");
1010     if (flags & SVf_READONLY)	sv_catpv(d, "READONLY,");
1011 
1012     if (flags & SVf_AMAGIC && type != SVt_PVHV)
1013 				sv_catpv(d, "OVERLOAD,");
1014     if (flags & SVp_IOK)	sv_catpv(d, "pIOK,");
1015     if (flags & SVp_NOK)	sv_catpv(d, "pNOK,");
1016     if (flags & SVp_POK)	sv_catpv(d, "pPOK,");
1017     if (flags & SVp_SCREAM)	sv_catpv(d, "SCREAM,");
1018 
1019     switch (type) {
1020     case SVt_PVCV:
1021     case SVt_PVFM:
1022 	if (CvANON(sv))		sv_catpv(d, "ANON,");
1023 	if (CvUNIQUE(sv))	sv_catpv(d, "UNIQUE,");
1024 	if (CvCLONE(sv))	sv_catpv(d, "CLONE,");
1025 	if (CvCLONED(sv))	sv_catpv(d, "CLONED,");
1026 	if (CvCONST(sv))	sv_catpv(d, "CONST,");
1027 	if (CvNODEBUG(sv))	sv_catpv(d, "NODEBUG,");
1028 	if (SvCOMPILED(sv))	sv_catpv(d, "COMPILED,");
1029 	if (CvLVALUE(sv))	sv_catpv(d, "LVALUE,");
1030 	if (CvMETHOD(sv))	sv_catpv(d, "METHOD,");
1031 	if (CvLOCKED(sv))	sv_catpv(d, "LOCKED,");
1032 	if (CvWEAKOUTSIDE(sv))	sv_catpv(d, "WEAKOUTSIDE,");
1033 	break;
1034     case SVt_PVHV:
1035 	if (HvSHAREKEYS(sv))	sv_catpv(d, "SHAREKEYS,");
1036 	if (HvLAZYDEL(sv))	sv_catpv(d, "LAZYDEL,");
1037 	if (HvHASKFLAGS(sv))	sv_catpv(d, "HASKFLAGS,");
1038 	if (HvREHASH(sv))	sv_catpv(d, "REHASH,");
1039 	break;
1040     case SVt_PVGV:
1041 	if (GvINTRO(sv))	sv_catpv(d, "INTRO,");
1042 	if (GvMULTI(sv))	sv_catpv(d, "MULTI,");
1043 	if (GvUNIQUE(sv))       sv_catpv(d, "UNIQUE,");
1044 	if (GvASSUMECV(sv))	sv_catpv(d, "ASSUMECV,");
1045 	if (GvIN_PAD(sv))       sv_catpv(d, "IN_PAD,");
1046 	if (flags & SVpad_OUR)	sv_catpv(d, "OUR,");
1047 	if (GvIMPORTED(sv)) {
1048 	    sv_catpv(d, "IMPORT");
1049 	    if (GvIMPORTED(sv) == GVf_IMPORTED)
1050 		sv_catpv(d, "ALL,");
1051 	    else {
1052 		sv_catpv(d, "(");
1053 		if (GvIMPORTED_SV(sv))	sv_catpv(d, " SV");
1054 		if (GvIMPORTED_AV(sv))	sv_catpv(d, " AV");
1055 		if (GvIMPORTED_HV(sv))	sv_catpv(d, " HV");
1056 		if (GvIMPORTED_CV(sv))	sv_catpv(d, " CV");
1057 		sv_catpv(d, " ),");
1058 	    }
1059 	}
1060 	/* FALL THROUGH */
1061     default:
1062 	if (SvEVALED(sv))	sv_catpv(d, "EVALED,");
1063 	if (SvIsUV(sv))		sv_catpv(d, "IsUV,");
1064 	break;
1065     case SVt_PVBM:
1066 	if (SvTAIL(sv))		sv_catpv(d, "TAIL,");
1067 	if (SvVALID(sv))	sv_catpv(d, "VALID,");
1068 	break;
1069     case SVt_PVMG:
1070 	if (flags & SVpad_TYPED)
1071 				sv_catpv(d, "TYPED,");
1072 	break;
1073     }
1074     if ((SvPOK(sv) || SvPOKp(sv)) && SvUTF8(sv))
1075         sv_catpv(d, "UTF8");
1076 
1077     if (*(SvEND(d) - 1) == ',')
1078 	SvPVX(d)[--SvCUR(d)] = '\0';
1079     sv_catpv(d, ")");
1080     s = SvPVX(d);
1081 
1082     Perl_dump_indent(aTHX_ level, file, "SV = ");
1083     switch (type) {
1084     case SVt_NULL:
1085 	PerlIO_printf(file, "NULL%s\n", s);
1086 	SvREFCNT_dec(d);
1087 	return;
1088     case SVt_IV:
1089 	PerlIO_printf(file, "IV%s\n", s);
1090 	break;
1091     case SVt_NV:
1092 	PerlIO_printf(file, "NV%s\n", s);
1093 	break;
1094     case SVt_RV:
1095 	PerlIO_printf(file, "RV%s\n", s);
1096 	break;
1097     case SVt_PV:
1098 	PerlIO_printf(file, "PV%s\n", s);
1099 	break;
1100     case SVt_PVIV:
1101 	PerlIO_printf(file, "PVIV%s\n", s);
1102 	break;
1103     case SVt_PVNV:
1104 	PerlIO_printf(file, "PVNV%s\n", s);
1105 	break;
1106     case SVt_PVBM:
1107 	PerlIO_printf(file, "PVBM%s\n", s);
1108 	break;
1109     case SVt_PVMG:
1110 	PerlIO_printf(file, "PVMG%s\n", s);
1111 	break;
1112     case SVt_PVLV:
1113 	PerlIO_printf(file, "PVLV%s\n", s);
1114 	break;
1115     case SVt_PVAV:
1116 	PerlIO_printf(file, "PVAV%s\n", s);
1117 	break;
1118     case SVt_PVHV:
1119 	PerlIO_printf(file, "PVHV%s\n", s);
1120 	break;
1121     case SVt_PVCV:
1122 	PerlIO_printf(file, "PVCV%s\n", s);
1123 	break;
1124     case SVt_PVGV:
1125 	PerlIO_printf(file, "PVGV%s\n", s);
1126 	break;
1127     case SVt_PVFM:
1128 	PerlIO_printf(file, "PVFM%s\n", s);
1129 	break;
1130     case SVt_PVIO:
1131 	PerlIO_printf(file, "PVIO%s\n", s);
1132 	break;
1133     default:
1134 	PerlIO_printf(file, "UNKNOWN(0x%"UVxf") %s\n", (UV)type, s);
1135 	SvREFCNT_dec(d);
1136 	return;
1137     }
1138     if (type >= SVt_PVIV || type == SVt_IV) {
1139 	if (SvIsUV(sv))
1140 	    Perl_dump_indent(aTHX_ level, file, "  UV = %"UVuf, (UV)SvUVX(sv));
1141 	else
1142 	    Perl_dump_indent(aTHX_ level, file, "  IV = %"IVdf, (IV)SvIVX(sv));
1143 	if (SvOOK(sv))
1144 	    PerlIO_printf(file, "  (OFFSET)");
1145 	PerlIO_putc(file, '\n');
1146     }
1147     if (type >= SVt_PVNV || type == SVt_NV) {
1148 	STORE_NUMERIC_LOCAL_SET_STANDARD();
1149 	/* %Vg doesn't work? --jhi */
1150 #ifdef USE_LONG_DOUBLE
1151 	Perl_dump_indent(aTHX_ level, file, "  NV = %.*" PERL_PRIgldbl "\n", LDBL_DIG, SvNVX(sv));
1152 #else
1153 	Perl_dump_indent(aTHX_ level, file, "  NV = %.*g\n", DBL_DIG, SvNVX(sv));
1154 #endif
1155 	RESTORE_NUMERIC_LOCAL();
1156     }
1157     if (SvROK(sv)) {
1158 	Perl_dump_indent(aTHX_ level, file, "  RV = 0x%"UVxf"\n", PTR2UV(SvRV(sv)));
1159 	if (nest < maxnest)
1160 	    do_sv_dump(level+1, file, SvRV(sv), nest+1, maxnest, dumpops, pvlim);
1161     }
1162     if (type < SVt_PV) {
1163 	SvREFCNT_dec(d);
1164 	return;
1165     }
1166     if (type <= SVt_PVLV) {
1167 	if (SvPVX(sv)) {
1168 	    Perl_dump_indent(aTHX_ level, file,"  PV = 0x%"UVxf" ", PTR2UV(SvPVX(sv)));
1169 	    if (SvOOK(sv))
1170 		PerlIO_printf(file, "( %s . ) ", pv_display(d, SvPVX(sv)-SvIVX(sv), SvIVX(sv), 0, pvlim));
1171 	    PerlIO_printf(file, "%s", pv_display(d, SvPVX(sv), SvCUR(sv), SvLEN(sv), pvlim));
1172 	    if (SvUTF8(sv)) /* the 8?  \x{....} */
1173 	        PerlIO_printf(file, " [UTF8 \"%s\"]", sv_uni_display(d, sv, 8 * sv_len_utf8(sv), UNI_DISPLAY_QQ));
1174 	    PerlIO_printf(file, "\n");
1175 	    Perl_dump_indent(aTHX_ level, file, "  CUR = %"IVdf"\n", (IV)SvCUR(sv));
1176 	    Perl_dump_indent(aTHX_ level, file, "  LEN = %"IVdf"\n", (IV)SvLEN(sv));
1177 	}
1178 	else
1179 	    Perl_dump_indent(aTHX_ level, file, "  PV = 0\n");
1180     }
1181     if (type >= SVt_PVMG) {
1182 	if (SvMAGIC(sv))
1183             do_magic_dump(level, file, SvMAGIC(sv), nest, maxnest, dumpops, pvlim);
1184 	if (SvSTASH(sv))
1185 	    do_hv_dump(level, file, "  STASH", SvSTASH(sv));
1186     }
1187     switch (type) {
1188     case SVt_PVLV:
1189 	Perl_dump_indent(aTHX_ level, file, "  TYPE = %c\n", LvTYPE(sv));
1190 	Perl_dump_indent(aTHX_ level, file, "  TARGOFF = %"IVdf"\n", (IV)LvTARGOFF(sv));
1191 	Perl_dump_indent(aTHX_ level, file, "  TARGLEN = %"IVdf"\n", (IV)LvTARGLEN(sv));
1192 	Perl_dump_indent(aTHX_ level, file, "  TARG = 0x%"UVxf"\n", PTR2UV(LvTARG(sv)));
1193 	if (LvTYPE(sv) != 't' && LvTYPE(sv) != 'T')
1194 	    do_sv_dump(level+1, file, LvTARG(sv), nest+1, maxnest,
1195 		    dumpops, pvlim);
1196 	break;
1197     case SVt_PVAV:
1198 	Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(AvARRAY(sv)));
1199 	if (AvARRAY(sv) != AvALLOC(sv)) {
1200 	    PerlIO_printf(file, " (offset=%"IVdf")\n", (IV)(AvARRAY(sv) - AvALLOC(sv)));
1201 	    Perl_dump_indent(aTHX_ level, file, "  ALLOC = 0x%"UVxf"\n", PTR2UV(AvALLOC(sv)));
1202 	}
1203 	else
1204 	    PerlIO_putc(file, '\n');
1205 	Perl_dump_indent(aTHX_ level, file, "  FILL = %"IVdf"\n", (IV)AvFILLp(sv));
1206 	Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)AvMAX(sv));
1207 	Perl_dump_indent(aTHX_ level, file, "  ARYLEN = 0x%"UVxf"\n", PTR2UV(AvARYLEN(sv)));
1208 	flags = AvFLAGS(sv);
1209 	sv_setpv(d, "");
1210 	if (flags & AVf_REAL)	sv_catpv(d, ",REAL");
1211 	if (flags & AVf_REIFY)	sv_catpv(d, ",REIFY");
1212 	if (flags & AVf_REUSED)	sv_catpv(d, ",REUSED");
1213 	Perl_dump_indent(aTHX_ level, file, "  FLAGS = (%s)\n", SvCUR(d) ? SvPVX(d) + 1 : "");
1214 	if (nest < maxnest && av_len((AV*)sv) >= 0) {
1215 	    int count;
1216 	    for (count = 0; count <=  av_len((AV*)sv) && count < maxnest; count++) {
1217 		SV** elt = av_fetch((AV*)sv,count,0);
1218 
1219 		Perl_dump_indent(aTHX_ level + 1, file, "Elt No. %"IVdf"\n", (IV)count);
1220 		if (elt)
1221 		    do_sv_dump(level+1, file, *elt, nest+1, maxnest, dumpops, pvlim);
1222 	    }
1223 	}
1224 	break;
1225     case SVt_PVHV:
1226 	Perl_dump_indent(aTHX_ level, file, "  ARRAY = 0x%"UVxf, PTR2UV(HvARRAY(sv)));
1227 	if (HvARRAY(sv) && HvKEYS(sv)) {
1228 	    /* Show distribution of HEs in the ARRAY */
1229 	    int freq[200];
1230 #define FREQ_MAX (sizeof freq / sizeof freq[0] - 1)
1231 	    int i;
1232 	    int max = 0;
1233 	    U32 pow2 = 2, keys = HvKEYS(sv);
1234 	    NV theoret, sum = 0;
1235 
1236 	    PerlIO_printf(file, "  (");
1237 	    Zero(freq, FREQ_MAX + 1, int);
1238 	    for (i = 0; (STRLEN)i <= HvMAX(sv); i++) {
1239 		HE* h; int count = 0;
1240                 for (h = HvARRAY(sv)[i]; h; h = HeNEXT(h))
1241 		    count++;
1242 		if (count > FREQ_MAX)
1243 		    count = FREQ_MAX;
1244 	        freq[count]++;
1245 	        if (max < count)
1246 		    max = count;
1247 	    }
1248 	    for (i = 0; i <= max; i++) {
1249 		if (freq[i]) {
1250 		    PerlIO_printf(file, "%d%s:%d", i,
1251 				  (i == FREQ_MAX) ? "+" : "",
1252 				  freq[i]);
1253 		    if (i != max)
1254 			PerlIO_printf(file, ", ");
1255 		}
1256             }
1257 	    PerlIO_putc(file, ')');
1258 	    /* The "quality" of a hash is defined as the total number of
1259 	       comparisons needed to access every element once, relative
1260 	       to the expected number needed for a random hash.
1261 
1262 	       The total number of comparisons is equal to the sum of
1263 	       the squares of the number of entries in each bucket.
1264 	       For a random hash of n keys into k buckets, the expected
1265 	       value is
1266 				n + n(n-1)/2k
1267 	    */
1268 
1269 	    for (i = max; i > 0; i--) { /* Precision: count down. */
1270 		sum += freq[i] * i * i;
1271             }
1272 	    while ((keys = keys >> 1))
1273 		pow2 = pow2 << 1;
1274 	    theoret = HvKEYS(sv);
1275 	    theoret += theoret * (theoret-1)/pow2;
1276 	    PerlIO_putc(file, '\n');
1277 	    Perl_dump_indent(aTHX_ level, file, "  hash quality = %.1"NVff"%%", theoret/sum*100);
1278 	}
1279 	PerlIO_putc(file, '\n');
1280 	Perl_dump_indent(aTHX_ level, file, "  KEYS = %"IVdf"\n", (IV)HvKEYS(sv));
1281 	Perl_dump_indent(aTHX_ level, file, "  FILL = %"IVdf"\n", (IV)HvFILL(sv));
1282 	Perl_dump_indent(aTHX_ level, file, "  MAX = %"IVdf"\n", (IV)HvMAX(sv));
1283 	Perl_dump_indent(aTHX_ level, file, "  RITER = %"IVdf"\n", (IV)HvRITER(sv));
1284 	Perl_dump_indent(aTHX_ level, file, "  EITER = 0x%"UVxf"\n", PTR2UV(HvEITER(sv)));
1285 	if (HvPMROOT(sv))
1286 	    Perl_dump_indent(aTHX_ level, file, "  PMROOT = 0x%"UVxf"\n", PTR2UV(HvPMROOT(sv)));
1287 	if (HvNAME(sv))
1288 	    Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", HvNAME(sv));
1289 	if (nest < maxnest && !HvEITER(sv)) { /* Try to preserve iterator */
1290 	    HE *he;
1291 	    HV *hv = (HV*)sv;
1292 	    int count = maxnest - nest;
1293 
1294 	    hv_iterinit(hv);
1295 	    while ((he = hv_iternext_flags(hv, HV_ITERNEXT_WANTPLACEHOLDERS))
1296                    && count--) {
1297 		SV *elt, *keysv;
1298 		char *keypv;
1299 		STRLEN len;
1300 		U32 hash = HeHASH(he);
1301 
1302 		keysv = hv_iterkeysv(he);
1303 		keypv = SvPV(keysv, len);
1304 		elt = hv_iterval(hv, he);
1305 		Perl_dump_indent(aTHX_ level+1, file, "Elt %s ", pv_display(d, keypv, len, 0, pvlim));
1306 		if (SvUTF8(keysv))
1307 		    PerlIO_printf(file, "[UTF8 \"%s\"] ", sv_uni_display(d, keysv, 8 * sv_len_utf8(keysv), UNI_DISPLAY_QQ));
1308 		if (HeKREHASH(he))
1309 		    PerlIO_printf(file, "[REHASH] ");
1310 		PerlIO_printf(file, "HASH = 0x%"UVxf"\n", (UV)hash);
1311 		do_sv_dump(level+1, file, elt, nest+1, maxnest, dumpops, pvlim);
1312 	    }
1313 	    hv_iterinit(hv);		/* Return to status quo */
1314 	}
1315 	break;
1316     case SVt_PVCV:
1317 	if (SvPOK(sv))
1318 	    Perl_dump_indent(aTHX_ level, file, "  PROTOTYPE = \"%s\"\n", SvPV_nolen(sv));
1319 	/* FALL THROUGH */
1320     case SVt_PVFM:
1321 	do_hv_dump(level, file, "  COMP_STASH", CvSTASH(sv));
1322 	if (CvSTART(sv))
1323 	    Perl_dump_indent(aTHX_ level, file, "  START = 0x%"UVxf" ===> %"IVdf"\n", PTR2UV(CvSTART(sv)), (IV)CvSTART(sv)->op_seq);
1324 	Perl_dump_indent(aTHX_ level, file, "  ROOT = 0x%"UVxf"\n", PTR2UV(CvROOT(sv)));
1325         if (CvROOT(sv) && dumpops)
1326 	    do_op_dump(level+1, file, CvROOT(sv));
1327 	Perl_dump_indent(aTHX_ level, file, "  XSUB = 0x%"UVxf"\n", PTR2UV(CvXSUB(sv)));
1328 	Perl_dump_indent(aTHX_ level, file, "  XSUBANY = %"IVdf"\n", (IV)CvXSUBANY(sv).any_i32);
1329  	do_gvgv_dump(level, file, "  GVGV::GV", CvGV(sv));
1330 	Perl_dump_indent(aTHX_ level, file, "  FILE = \"%s\"\n", CvFILE(sv));
1331 	Perl_dump_indent(aTHX_ level, file, "  DEPTH = %"IVdf"\n", (IV)CvDEPTH(sv));
1332 #ifdef USE_5005THREADS
1333 	Perl_dump_indent(aTHX_ level, file, "  MUTEXP = 0x%"UVxf"\n", PTR2UV(CvMUTEXP(sv)));
1334 	Perl_dump_indent(aTHX_ level, file, "  OWNER = 0x%"UVxf"\n",  PTR2UV(CvOWNER(sv)));
1335 #endif /* USE_5005THREADS */
1336 	Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)CvFLAGS(sv));
1337 	Perl_dump_indent(aTHX_ level, file, "  OUTSIDE_SEQ = %"UVuf"\n", (UV)CvOUTSIDE_SEQ(sv));
1338 	if (type == SVt_PVFM)
1339 	    Perl_dump_indent(aTHX_ level, file, "  LINES = %"IVdf"\n", (IV)FmLINES(sv));
1340 	Perl_dump_indent(aTHX_ level, file, "  PADLIST = 0x%"UVxf"\n", PTR2UV(CvPADLIST(sv)));
1341 	if (nest < maxnest) {
1342 	    do_dump_pad(level+1, file, CvPADLIST(sv), 0);
1343 	}
1344 	{
1345 	    CV *outside = CvOUTSIDE(sv);
1346 	    Perl_dump_indent(aTHX_ level, file, "  OUTSIDE = 0x%"UVxf" (%s)\n",
1347 			PTR2UV(outside),
1348 			(!outside ? "null"
1349 			 : CvANON(outside) ? "ANON"
1350 			 : (outside == PL_main_cv) ? "MAIN"
1351 			 : CvUNIQUE(outside) ? "UNIQUE"
1352 			 : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED"));
1353 	}
1354 	if (nest < maxnest && (CvCLONE(sv) || CvCLONED(sv)))
1355 	    do_sv_dump(level+1, file, (SV*)CvOUTSIDE(sv), nest+1, maxnest, dumpops, pvlim);
1356 	break;
1357     case SVt_PVGV:
1358 	Perl_dump_indent(aTHX_ level, file, "  NAME = \"%s\"\n", GvNAME(sv));
1359 	Perl_dump_indent(aTHX_ level, file, "  NAMELEN = %"IVdf"\n", (IV)GvNAMELEN(sv));
1360 	do_hv_dump (level, file, "  GvSTASH", GvSTASH(sv));
1361 	Perl_dump_indent(aTHX_ level, file, "  GP = 0x%"UVxf"\n", PTR2UV(GvGP(sv)));
1362 	if (!GvGP(sv))
1363 	    break;
1364 	Perl_dump_indent(aTHX_ level, file, "    SV = 0x%"UVxf"\n", PTR2UV(GvSV(sv)));
1365 	Perl_dump_indent(aTHX_ level, file, "    REFCNT = %"IVdf"\n", (IV)GvREFCNT(sv));
1366 	Perl_dump_indent(aTHX_ level, file, "    IO = 0x%"UVxf"\n", PTR2UV(GvIOp(sv)));
1367 	Perl_dump_indent(aTHX_ level, file, "    FORM = 0x%"UVxf"  \n", PTR2UV(GvFORM(sv)));
1368 	Perl_dump_indent(aTHX_ level, file, "    AV = 0x%"UVxf"\n", PTR2UV(GvAV(sv)));
1369 	Perl_dump_indent(aTHX_ level, file, "    HV = 0x%"UVxf"\n", PTR2UV(GvHV(sv)));
1370 	Perl_dump_indent(aTHX_ level, file, "    CV = 0x%"UVxf"\n", PTR2UV(GvCV(sv)));
1371 	Perl_dump_indent(aTHX_ level, file, "    CVGEN = 0x%"UVxf"\n", (UV)GvCVGEN(sv));
1372 	Perl_dump_indent(aTHX_ level, file, "    GPFLAGS = 0x%"UVxf"\n", (UV)GvGPFLAGS(sv));
1373 	Perl_dump_indent(aTHX_ level, file, "    LINE = %"IVdf"\n", (IV)GvLINE(sv));
1374 	Perl_dump_indent(aTHX_ level, file, "    FILE = \"%s\"\n", GvFILE(sv));
1375 	Perl_dump_indent(aTHX_ level, file, "    FLAGS = 0x%"UVxf"\n", (UV)GvFLAGS(sv));
1376 	do_gv_dump (level, file, "    EGV", GvEGV(sv));
1377 	break;
1378     case SVt_PVIO:
1379 	Perl_dump_indent(aTHX_ level, file, "  IFP = 0x%"UVxf"\n", PTR2UV(IoIFP(sv)));
1380 	Perl_dump_indent(aTHX_ level, file, "  OFP = 0x%"UVxf"\n", PTR2UV(IoOFP(sv)));
1381 	Perl_dump_indent(aTHX_ level, file, "  DIRP = 0x%"UVxf"\n", PTR2UV(IoDIRP(sv)));
1382 	Perl_dump_indent(aTHX_ level, file, "  LINES = %"IVdf"\n", (IV)IoLINES(sv));
1383 	Perl_dump_indent(aTHX_ level, file, "  PAGE = %"IVdf"\n", (IV)IoPAGE(sv));
1384 	Perl_dump_indent(aTHX_ level, file, "  PAGE_LEN = %"IVdf"\n", (IV)IoPAGE_LEN(sv));
1385 	Perl_dump_indent(aTHX_ level, file, "  LINES_LEFT = %"IVdf"\n", (IV)IoLINES_LEFT(sv));
1386         if (IoTOP_NAME(sv))
1387             Perl_dump_indent(aTHX_ level, file, "  TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
1388 	do_gv_dump (level, file, "  TOP_GV", IoTOP_GV(sv));
1389         if (IoFMT_NAME(sv))
1390             Perl_dump_indent(aTHX_ level, file, "  FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
1391 	do_gv_dump (level, file, "  FMT_GV", IoFMT_GV(sv));
1392         if (IoBOTTOM_NAME(sv))
1393             Perl_dump_indent(aTHX_ level, file, "  BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
1394 	do_gv_dump (level, file, "  BOTTOM_GV", IoBOTTOM_GV(sv));
1395 	Perl_dump_indent(aTHX_ level, file, "  SUBPROCESS = %"IVdf"\n", (IV)IoSUBPROCESS(sv));
1396 	if (isPRINT(IoTYPE(sv)))
1397             Perl_dump_indent(aTHX_ level, file, "  TYPE = '%c'\n", IoTYPE(sv));
1398 	else
1399             Perl_dump_indent(aTHX_ level, file, "  TYPE = '\\%o'\n", IoTYPE(sv));
1400 	Perl_dump_indent(aTHX_ level, file, "  FLAGS = 0x%"UVxf"\n", (UV)IoFLAGS(sv));
1401 	break;
1402     }
1403     SvREFCNT_dec(d);
1404 }
1405 
1406 void
Perl_sv_dump(pTHX_ SV * sv)1407 Perl_sv_dump(pTHX_ SV *sv)
1408 {
1409     do_sv_dump(0, Perl_debug_log, sv, 0, 0, 0, 0);
1410 }
1411 
1412 int
Perl_runops_debug(pTHX)1413 Perl_runops_debug(pTHX)
1414 {
1415     if (!PL_op) {
1416 	if (ckWARN_d(WARN_DEBUGGING))
1417 	    Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "NULL OP IN RUN");
1418 	return 0;
1419     }
1420 
1421     do {
1422 	PERL_ASYNC_CHECK();
1423 	if (PL_debug) {
1424 	    if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok)
1425 		PerlIO_printf(Perl_debug_log,
1426 			      "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
1427 			      PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
1428 			      PTR2UV(*PL_watchaddr));
1429 	    if (DEBUG_s_TEST_) {
1430 		if (DEBUG_v_TEST_) {
1431 		    PerlIO_printf(Perl_debug_log, "\n");
1432 		    deb_stack_all();
1433 		}
1434 		else
1435 		    debstack();
1436 	    }
1437 
1438 
1439 	    if (DEBUG_t_TEST_) debop(PL_op);
1440 	    if (DEBUG_P_TEST_) debprof(PL_op);
1441 	}
1442     } while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX)));
1443 
1444     TAINT_NOT;
1445     return 0;
1446 }
1447 
1448 I32
Perl_debop(pTHX_ OP * o)1449 Perl_debop(pTHX_ OP *o)
1450 {
1451     AV *padlist, *comppad;
1452     CV *cv;
1453     SV *sv;
1454 
1455     if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
1456 	return 0;
1457 
1458     Perl_deb(aTHX_ "%s", OP_NAME(o));
1459     switch (o->op_type) {
1460     case OP_CONST:
1461 	PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
1462 	break;
1463     case OP_GVSV:
1464     case OP_GV:
1465 	if (cGVOPo_gv) {
1466 	    sv = NEWSV(0,0);
1467 	    gv_fullname3(sv, cGVOPo_gv, Nullch);
1468 	    PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen(sv));
1469 	    SvREFCNT_dec(sv);
1470 	}
1471 	else
1472 	    PerlIO_printf(Perl_debug_log, "(NULL)");
1473 	break;
1474     case OP_PADSV:
1475     case OP_PADAV:
1476     case OP_PADHV:
1477 	/* print the lexical's name */
1478         cv = deb_curcv(cxstack_ix);
1479         if (cv) {
1480             padlist = CvPADLIST(cv);
1481             comppad = (AV*)(*av_fetch(padlist, 0, FALSE));
1482             sv = *av_fetch(comppad, o->op_targ, FALSE);
1483         } else
1484             sv = Nullsv;
1485         if (sv)
1486            PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen(sv));
1487         else
1488            PerlIO_printf(Perl_debug_log, "[%"UVuf"]", (UV)o->op_targ);
1489         break;
1490     default:
1491 	break;
1492     }
1493     PerlIO_printf(Perl_debug_log, "\n");
1494     return 0;
1495 }
1496 
1497 STATIC CV*
S_deb_curcv(pTHX_ I32 ix)1498 S_deb_curcv(pTHX_ I32 ix)
1499 {
1500     PERL_CONTEXT *cx = &cxstack[ix];
1501     if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
1502         return cx->blk_sub.cv;
1503     else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
1504         return PL_compcv;
1505     else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
1506         return PL_main_cv;
1507     else if (ix <= 0)
1508         return Nullcv;
1509     else
1510         return deb_curcv(ix - 1);
1511 }
1512 
1513 void
Perl_watch(pTHX_ char ** addr)1514 Perl_watch(pTHX_ char **addr)
1515 {
1516     PL_watchaddr = addr;
1517     PL_watchok = *addr;
1518     PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
1519 	PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
1520 }
1521 
1522 STATIC void
S_debprof(pTHX_ OP * o)1523 S_debprof(pTHX_ OP *o)
1524 {
1525     if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
1526 	return;
1527     if (!PL_profiledata)
1528 	Newz(000, PL_profiledata, MAXO, U32);
1529     ++PL_profiledata[o->op_type];
1530 }
1531 
1532 void
Perl_debprofdump(pTHX)1533 Perl_debprofdump(pTHX)
1534 {
1535     unsigned i;
1536     if (!PL_profiledata)
1537 	return;
1538     for (i = 0; i < MAXO; i++) {
1539 	if (PL_profiledata[i])
1540 	    PerlIO_printf(Perl_debug_log,
1541 			  "%5lu %s\n", (unsigned long)PL_profiledata[i],
1542                                        PL_op_name[i]);
1543     }
1544 }
1545