summaryrefslogtreecommitdiff
path: root/gdb/cp-valprint.c
blob: 6f9bb353f5f26b00fe82d74b5301d7e894c4182d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
/* Support for printing C++ values for GDB, the GNU debugger.
   Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
   2000, 2001, 2002, 2003
   Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include "defs.h"
#include "gdb_obstack.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "command.h"
#include "gdbcmd.h"
#include "demangle.h"
#include "annotate.h"
#include "gdb_string.h"
#include "c-lang.h"
#include "target.h"
#include "cp-abi.h"
#include "valprint.h"

int vtblprint;			/* Controls printing of vtbl's */
int objectprint;		/* Controls looking up an object's derived type
				   using what we find in its vtables.  */
int static_field_print;		/* Controls printing of static fields. */

static struct obstack dont_print_vb_obstack;
static struct obstack dont_print_statmem_obstack;

extern void _initialize_cp_valprint (void);

static void cp_print_static_field (struct type *, struct value *,
				   struct ui_file *, int, int,
				   enum val_prettyprint);

static void cp_print_value (struct type *, struct type *, char *, int,
			    CORE_ADDR, struct ui_file *, int, int,
			    enum val_prettyprint, struct type **);

static void cp_print_hpacc_virtual_table_entries (struct type *, int *,
						  struct value *,
						  struct ui_file *, int,
						  int,
						  enum val_prettyprint);


void
cp_print_class_method (char *valaddr,
		       struct type *type,
		       struct ui_file *stream)
{
  struct type *domain;
  struct fn_field *f = NULL;
  int j = 0;
  int len2;
  int offset;
  char *kind = "";
  CORE_ADDR addr;
  struct symbol *sym;
  unsigned len;
  unsigned int i;
  struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));

  domain = TYPE_DOMAIN_TYPE (target_type);
  if (domain == (struct type *) NULL)
    {
      fprintf_filtered (stream, "<unknown>");
      return;
    }
  addr = unpack_pointer (type, valaddr);
  if (METHOD_PTR_IS_VIRTUAL (addr))
    {
      offset = METHOD_PTR_TO_VOFFSET (addr);
      len = TYPE_NFN_FIELDS (domain);
      for (i = 0; i < len; i++)
	{
	  f = TYPE_FN_FIELDLIST1 (domain, i);
	  len2 = TYPE_FN_FIELDLIST_LENGTH (domain, i);

	  check_stub_method_group (domain, i);
	  for (j = 0; j < len2; j++)
	    {
	      if (TYPE_FN_FIELD_VOFFSET (f, j) == offset)
		{
		  kind = "virtual ";
		  goto common;
		}
	    }
	}
    }
  else
    {
      sym = find_pc_function (addr);
      if (sym == 0)
	{
	  /* 1997-08-01 Currently unsupported with HP aCC */
	  if (deprecated_hp_som_som_object_present)
	    {
	      fputs_filtered ("?? <not supported with HP aCC>", stream);
	      return;
	    }
	  error ("invalid pointer to member function");
	}
      len = TYPE_NFN_FIELDS (domain);
      for (i = 0; i < len; i++)
	{
	  f = TYPE_FN_FIELDLIST1 (domain, i);
	  len2 = TYPE_FN_FIELDLIST_LENGTH (domain, i);

	  check_stub_method_group (domain, i);
	  for (j = 0; j < len2; j++)
	    {
	      if (strcmp (DEPRECATED_SYMBOL_NAME (sym), TYPE_FN_FIELD_PHYSNAME (f, j))
		  == 0)
		goto common;
	    }
	}
    }
 common:
  if (i < len)
    {
      char *demangled_name;

      fprintf_filtered (stream, "&");
      fputs_filtered (kind, stream);
      demangled_name = cplus_demangle (TYPE_FN_FIELD_PHYSNAME (f, j),
				       DMGL_ANSI | DMGL_PARAMS);
      if (demangled_name == NULL)
	fprintf_filtered (stream, "<badly mangled name %s>",
			  TYPE_FN_FIELD_PHYSNAME (f, j));
      else
	{
	  fputs_filtered (demangled_name, stream);
	  xfree (demangled_name);
	}
    }
  else
    {
      fprintf_filtered (stream, "(");
      type_print (type, "", stream, -1);
      fprintf_filtered (stream, ") %d", (int) addr >> 3);
    }
}

/* GCC versions after 2.4.5 use this.  */
const char vtbl_ptr_name[] = "__vtbl_ptr_type";

/* HP aCC uses different names.  */
const char hpacc_vtbl_ptr_name[] = "__vfp";
const char hpacc_vtbl_ptr_type_name[] = "__vftyp";

/* Return truth value for assertion that TYPE is of the type
   "pointer to virtual function".  */

int
cp_is_vtbl_ptr_type (struct type *type)
{
  char *typename = type_name_no_tag (type);

  return (typename != NULL && !strcmp (typename, vtbl_ptr_name));
}

/* Return truth value for the assertion that TYPE is of the type
   "pointer to virtual function table".  */

int
cp_is_vtbl_member (struct type *type)
{
  /* With older versions of g++, the vtbl field pointed to an array
     of structures.  Nowadays it points directly to the structure. */
  if (TYPE_CODE (type) == TYPE_CODE_PTR)
    {
      type = TYPE_TARGET_TYPE (type);
      if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
	{
	  type = TYPE_TARGET_TYPE (type);
	  if (TYPE_CODE (type) == TYPE_CODE_STRUCT	/* if not using thunks */
	      || TYPE_CODE (type) == TYPE_CODE_PTR)	/* if using thunks */
	    {
	      /* Virtual functions tables are full of pointers
	         to virtual functions. */
	      return cp_is_vtbl_ptr_type (type);
	    }
	}
      else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)  /* if not using thunks */
	{
	  return cp_is_vtbl_ptr_type (type);
	}
      else if (TYPE_CODE (type) == TYPE_CODE_PTR)     /* if using thunks */
	{
	  /* The type name of the thunk pointer is NULL when using dwarf2.
	     We could test for a pointer to a function, but there is
	     no type info for the virtual table either, so it wont help.  */
	  return cp_is_vtbl_ptr_type (type);
	}
    }
  return 0;
}

/* Mutually recursive subroutines of cp_print_value and c_val_print to
   print out a structure's fields: cp_print_value_fields and cp_print_value.

   TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
   same meanings as in cp_print_value and c_val_print.

   2nd argument REAL_TYPE is used to carry over the type of the derived
   class across the recursion to base classes. 

   DONT_PRINT is an array of baseclass types that we
   should not print, or zero if called from top level.  */

void
cp_print_value_fields (struct type *type, struct type *real_type, char *valaddr,
		       int offset, CORE_ADDR address, struct ui_file *stream,
		       int format, int recurse, enum val_prettyprint pretty,
		       struct type **dont_print_vb, int dont_print_statmem)
{
  int i, len, n_baseclasses;
  struct obstack tmp_obstack;
  char *last_dont_print = obstack_next_free (&dont_print_statmem_obstack);
  int fields_seen = 0;

  CHECK_TYPEDEF (type);

  fprintf_filtered (stream, "{");
  len = TYPE_NFIELDS (type);
  n_baseclasses = TYPE_N_BASECLASSES (type);

  /* First, print out baseclasses such that we don't print
     duplicates of virtual baseclasses.  */

  if (n_baseclasses > 0)
    cp_print_value (type, real_type, valaddr, offset, address, stream,
		    format, recurse + 1, pretty, dont_print_vb);

  /* Second, print out data fields */

  /* If there are no data fields, or if the only field is the
   * vtbl pointer, skip this part */
  if ((len == n_baseclasses)
      || ((len - n_baseclasses == 1)
	  && TYPE_HAS_VTABLE (type)
	  && strncmp (TYPE_FIELD_NAME (type, n_baseclasses),
		      hpacc_vtbl_ptr_name, 5) == 0)
      || !len)
    fprintf_filtered (stream, "<No data fields>");
  else
    {
      if (dont_print_statmem == 0)
	{
	  /* If we're at top level, carve out a completely fresh
	     chunk of the obstack and use that until this particular
	     invocation returns.  */
	  tmp_obstack = dont_print_statmem_obstack;
	  obstack_finish (&dont_print_statmem_obstack);
	}

      for (i = n_baseclasses; i < len; i++)
	{
	  /* If requested, skip printing of static fields.  */
	  if (!static_field_print && TYPE_FIELD_STATIC (type, i))
	    continue;

	  /* If a vtable pointer appears, we'll print it out later */
	  if (TYPE_HAS_VTABLE (type)
	      && strncmp (TYPE_FIELD_NAME (type, i), hpacc_vtbl_ptr_name,
			  5) == 0)
	    continue;

	  if (fields_seen)
	    fprintf_filtered (stream, ", ");
	  else if (n_baseclasses > 0)
	    {
	      if (pretty)
		{
		  fprintf_filtered (stream, "\n");
		  print_spaces_filtered (2 + 2 * recurse, stream);
		  fputs_filtered ("members of ", stream);
		  fputs_filtered (type_name_no_tag (type), stream);
		  fputs_filtered (": ", stream);
		}
	    }
	  fields_seen = 1;

	  if (pretty)
	    {
	      fprintf_filtered (stream, "\n");
	      print_spaces_filtered (2 + 2 * recurse, stream);
	    }
	  else
	    {
	      wrap_here (n_spaces (2 + 2 * recurse));
	    }
	  if (inspect_it)
	    {
	      if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
		fputs_filtered ("\"( ptr \"", stream);
	      else
		fputs_filtered ("\"( nodef \"", stream);
	      if (TYPE_FIELD_STATIC (type, i))
		fputs_filtered ("static ", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      fputs_filtered ("\" \"", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      fputs_filtered ("\") \"", stream);
	    }
	  else
	    {
	      annotate_field_begin (TYPE_FIELD_TYPE (type, i));

	      if (TYPE_FIELD_STATIC (type, i))
		fputs_filtered ("static ", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      annotate_field_name_end ();
	      /* do not print leading '=' in case of anonymous unions */
	      if (strcmp (TYPE_FIELD_NAME (type, i), ""))
		fputs_filtered (" = ", stream);
	      annotate_field_value ();
	    }

	  if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
	    {
	      struct value *v;

	      /* Bitfields require special handling, especially due to byte
	         order problems.  */
	      if (TYPE_FIELD_IGNORE (type, i))
		{
		  fputs_filtered ("<optimized out or zero length>", stream);
		}
	      else
		{
		  v = value_from_longest
		    (TYPE_FIELD_TYPE (type, i), 
		     unpack_field_as_long (type, valaddr + offset, i));

		  val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v),
			     0, 0, stream, format, 0, recurse + 1, pretty);
		}
	    }
	  else
	    {
	      if (TYPE_FIELD_IGNORE (type, i))
		{
		  fputs_filtered ("<optimized out or zero length>", stream);
		}
	      else if (TYPE_FIELD_STATIC (type, i))
		{
		  struct value *v = value_static_field (type, i);
		  if (v == NULL)
		    fputs_filtered ("<optimized out>", stream);
		  else
		    cp_print_static_field (TYPE_FIELD_TYPE (type, i), v,
					   stream, format, recurse + 1,
					   pretty);
		}
	      else
		{
		  val_print (TYPE_FIELD_TYPE (type, i),
			     valaddr, offset + TYPE_FIELD_BITPOS (type, i) / 8,
			     address + TYPE_FIELD_BITPOS (type, i) / 8,
			     stream, format, 0, recurse + 1, pretty);
		}
	    }
	  annotate_field_end ();
	}

      if (dont_print_statmem == 0)
	{
	  /* Free the space used to deal with the printing
	     of the members from top level.  */
	  obstack_free (&dont_print_statmem_obstack, last_dont_print);
	  dont_print_statmem_obstack = tmp_obstack;
	}

      if (pretty)
	{
	  fprintf_filtered (stream, "\n");
	  print_spaces_filtered (2 * recurse, stream);
	}
    }				/* if there are data fields */
  /* Now print out the virtual table pointer if there is one */
  if (TYPE_HAS_VTABLE (type)
      && strncmp (TYPE_FIELD_NAME (type, n_baseclasses),
		  hpacc_vtbl_ptr_name, 5) == 0)
    {
      struct value *v;
      /* First get the virtual table pointer and print it out */

#if 0
      fputs_filtered ("__vfp = ", stream);
#endif

      fputs_filtered (", Virtual table at ", stream);

      /* pai: FIXME 32x64 problem? */
      /* Not sure what the best notation is in the case where there is no
         baseclass name.  */
      v = value_from_pointer (lookup_pointer_type (builtin_type_unsigned_long),
			      *(unsigned long *) (valaddr + offset));

      val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, 0,
		 stream, format, 0, recurse + 1, pretty);
      fields_seen = 1;

      if (vtblprint)
	{
	  /* Print out function pointers in vtable. */

	  /* FIXME: then-clause is for non-RRBC layout of virtual
	   * table.  The RRBC case in the else-clause is yet to be
	   * implemented.  The if (1) below should be changed to a
	   * test for whether the executable we have was compiled
	   * with a version of HP aCC that doesn't have RRBC
	   * support. */

	  if (1)
	    {
	      /* no RRBC support; function pointers embedded directly
                 in vtable */

	      int vfuncs = count_virtual_fns (real_type);

	      fputs_filtered (" {", stream);

	      /* FIXME : doesn't work at present */
#if 0
	      fprintf_filtered (stream, "%d entr%s: ", vfuncs,
				vfuncs == 1 ? "y" : "ies");
#else
	      fputs_filtered ("not implemented", stream);


#endif

	      /* recursive function that prints all virtual function entries */
#if 0
	      cp_print_hpacc_virtual_table_entries (real_type, &vfuncs, v,
						    stream, format, recurse,
						    pretty);
#endif
	      fputs_filtered ("}", stream);
	    }			/* non-RRBC case */
	  else
	    {
	      /* FIXME -- see comments above */
	      /* RRBC support present; function pointers are found
	       * by indirection through the class segment entries. */


	    }			/* RRBC case */
	}			/* if vtblprint */

      if (pretty)
	{
	  fprintf_filtered (stream, "\n");
	  print_spaces_filtered (2 * recurse, stream);
	}

    }				/* if vtable exists */

  fprintf_filtered (stream, "}");
}

/* Special val_print routine to avoid printing multiple copies of virtual
   baseclasses.  */

static void
cp_print_value (struct type *type, struct type *real_type, char *valaddr,
		int offset, CORE_ADDR address, struct ui_file *stream,
		int format, int recurse, enum val_prettyprint pretty,
		struct type **dont_print_vb)
{
  struct obstack tmp_obstack;
  struct type **last_dont_print
    = (struct type **) obstack_next_free (&dont_print_vb_obstack);
  int i, n_baseclasses = TYPE_N_BASECLASSES (type);
  int thisoffset;
  struct type *thistype;

  if (dont_print_vb == 0)
    {
      /* If we're at top level, carve out a completely fresh
         chunk of the obstack and use that until this particular
         invocation returns.  */
      tmp_obstack = dont_print_vb_obstack;
      /* Bump up the high-water mark.  Now alpha is omega.  */
      obstack_finish (&dont_print_vb_obstack);
    }

  for (i = 0; i < n_baseclasses; i++)
    {
      int boffset;
      int skip;
      struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
      char *basename = TYPE_NAME (baseclass);
      char *base_valaddr;

      if (BASETYPE_VIA_VIRTUAL (type, i))
	{
	  struct type **first_dont_print
	    = (struct type **) obstack_base (&dont_print_vb_obstack);

	  int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
	    - first_dont_print;

	  while (--j >= 0)
	    if (baseclass == first_dont_print[j])
	      goto flush_it;

	  obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
	}

      thisoffset = offset;
      thistype = real_type;
      if (TYPE_HAS_VTABLE (type) && BASETYPE_VIA_VIRTUAL (type, i))
	{
	  /* Assume HP/Taligent runtime convention */
	  find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
				valaddr, offset, &boffset, &skip);
	  if (skip >= 0)
	    error ("Virtual base class offset not found from vtable while"
		   " printing");
	  base_valaddr = valaddr;
	}
      else
	{
	  boffset = baseclass_offset (type, i,
				      valaddr + offset,
				      address);
	  skip = ((boffset == -1) || (boffset + offset) < 0) ? 1 : -1;

	  if (BASETYPE_VIA_VIRTUAL (type, i))
	    {
	      /* The virtual base class pointer might have been
	         clobbered by the user program. Make sure that it
	         still points to a valid memory location.  */

	      if (boffset != -1
		  && ((boffset + offset) < 0
		      || (boffset + offset) >= TYPE_LENGTH (type)))
		{
		  /* FIXME (alloca): unsafe if baseclass is really really large. */
		  base_valaddr = (char *) alloca (TYPE_LENGTH (baseclass));
		  if (target_read_memory (address + boffset, base_valaddr,
					  TYPE_LENGTH (baseclass)) != 0)
		    skip = 1;
		  address = address + boffset;
		  thisoffset = 0;
		  boffset = 0;
		  thistype = baseclass;
		}
	      else
		base_valaddr = valaddr;
	    }
	  else
	    base_valaddr = valaddr;
	}

      /* now do the printing */
      if (pretty)
	{
	  fprintf_filtered (stream, "\n");
	  print_spaces_filtered (2 * recurse, stream);
	}
      fputs_filtered ("<", stream);
      /* Not sure what the best notation is in the case where there is no
         baseclass name.  */
      fputs_filtered (basename ? basename : "", stream);
      fputs_filtered ("> = ", stream);


      if (skip >= 1)
	fprintf_filtered (stream, "<invalid address>");
      else
	cp_print_value_fields (baseclass, thistype, base_valaddr,
			       thisoffset + boffset, address + boffset,
			       stream, format,
			       recurse, pretty,
			       ((struct type **)
				obstack_base (&dont_print_vb_obstack)),
			       0);
      fputs_filtered (", ", stream);

    flush_it:
      ;
    }

  if (dont_print_vb == 0)
    {
      /* Free the space used to deal with the printing
         of this type from top level.  */
      obstack_free (&dont_print_vb_obstack, last_dont_print);
      /* Reset watermark so that we can continue protecting
         ourselves from whatever we were protecting ourselves.  */
      dont_print_vb_obstack = tmp_obstack;
    }
}

/* Print value of a static member.
   To avoid infinite recursion when printing a class that contains
   a static instance of the class, we keep the addresses of all printed
   static member classes in an obstack and refuse to print them more
   than once.

   VAL contains the value to print, TYPE, STREAM, RECURSE, and PRETTY
   have the same meanings as in c_val_print.  */

static void
cp_print_static_field (struct type *type,
		       struct value *val,
		       struct ui_file *stream,
		       int format,
		       int recurse,
		       enum val_prettyprint pretty)
{
  if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
    {
      CORE_ADDR *first_dont_print;
      int i;

      first_dont_print
	= (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack);
      i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack)
	- first_dont_print;

      while (--i >= 0)
	{
	  if (VALUE_ADDRESS (val) == first_dont_print[i])
	    {
	      fputs_filtered ("<same as static member of an already"
			      " seen type>",
			      stream);
	      return;
	    }
	}

      obstack_grow (&dont_print_statmem_obstack, (char *) &VALUE_ADDRESS (val),
		    sizeof (CORE_ADDR));

      CHECK_TYPEDEF (type);
      cp_print_value_fields (type, type, VALUE_CONTENTS_ALL (val),
			     VALUE_EMBEDDED_OFFSET (val), VALUE_ADDRESS (val),
			     stream, format, recurse, pretty, NULL, 1);
      return;
    }
  val_print (type, VALUE_CONTENTS_ALL (val), 
	     VALUE_EMBEDDED_OFFSET (val), VALUE_ADDRESS (val),
	     stream, format, 0, recurse, pretty);
}

void
cp_print_class_member (char *valaddr, struct type *domain,
		       struct ui_file *stream, char *prefix)
{

  /* VAL is a byte offset into the structure type DOMAIN.
     Find the name of the field for that offset and
     print it.  */
  int extra = 0;
  int bits = 0;
  unsigned int i;
  unsigned len = TYPE_NFIELDS (domain);

  /* @@ Make VAL into bit offset */

  /* Note: HP aCC generates offsets that are the real byte offsets added
     to a constant bias 0x20000000 (1 << 29).  This constant bias gets
     shifted out in the code below -- joyous happenstance! */

  /* Note: HP cfront uses a constant bias of 1; if we support this
     compiler ever, we will have to adjust the computation below */

  LONGEST val = unpack_long (builtin_type_int, valaddr) << 3;
  for (i = TYPE_N_BASECLASSES (domain); i < len; i++)
    {
      int bitpos = TYPE_FIELD_BITPOS (domain, i);
      QUIT;
      if (val == bitpos)
	break;
      if (val < bitpos && i != 0)
	{
	  /* Somehow pointing into a field.  */
	  i -= 1;
	  extra = (val - TYPE_FIELD_BITPOS (domain, i));
	  if (extra & 0x7)
	    bits = 1;
	  else
	    extra >>= 3;
	  break;
	}
    }
  if (i < len)
    {
      char *name;
      fputs_filtered (prefix, stream);
      name = type_name_no_tag (domain);
      if (name)
	fputs_filtered (name, stream);
      else
	c_type_print_base (domain, stream, 0, 0);
      fprintf_filtered (stream, "::");
      fputs_filtered (TYPE_FIELD_NAME (domain, i), stream);
      if (extra)
	fprintf_filtered (stream, " + %d bytes", extra);
      if (bits)
	fprintf_filtered (stream, " (offset in bits)");
    }
  else
    fprintf_filtered (stream, "%ld", (long) (val >> 3));
}


/* This function prints out virtual table entries for a class; it
 * recurses on the base classes to find all virtual functions
 * available in a class.
 *
 * pai/1997-05-21 Note: As the name suggests, it's currently
 * implemented for HP aCC runtime only. g++ objects are handled
 * differently and I have made no attempt to fold that logic in
 * here. The runtime layout is different for the two cases.  Also,
 * this currently has only the code for non-RRBC layouts generated by
 * the HP aCC compiler; RRBC code is stubbed out and will have to be
 * added later. */


static void
cp_print_hpacc_virtual_table_entries (struct type *type, int *vfuncs,
				      struct value *v, struct ui_file *stream,
				      int format, int recurse,
				      enum val_prettyprint pretty)
{
  int fn, oi;

  /* pai: FIXME this function doesn't work. It should handle a given
   * virtual function only once (latest redefinition in class hierarchy)
   */

  /* Recursion on other classes that can share the same vtable */
  struct type *pbc = primary_base_class (type);
  if (pbc)
    cp_print_hpacc_virtual_table_entries (pbc, vfuncs, v, stream, format,
					  recurse, pretty);

  /* Now deal with vfuncs declared in this class */
  for (fn = 0; fn < TYPE_NFN_FIELDS (type); fn++)
    for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (type, fn); oi++)
      if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (type, fn), oi))
	{
	  char *vf_name;
	  const char *field_physname;

	  /* virtual function offset */
	  int vx = (TYPE_FN_FIELD_VOFFSET (TYPE_FN_FIELDLIST1 (type, fn), oi)
		    - 1);

	  /* Get the address of the vfunction entry */
	  struct value *vf = value_copy (v);
	  if (VALUE_LAZY (vf))
	    (void) value_fetch_lazy (vf);
	  /* adjust by offset */
	  vf->aligner.contents[0] += 4 * (HP_ACC_VFUNC_START + vx);
	  vf = value_ind (vf);	/* get the entry */
	  VALUE_TYPE (vf) = VALUE_TYPE (v);	/* make it a pointer */

	  /* print out the entry */
	  val_print (VALUE_TYPE (vf), VALUE_CONTENTS (vf), 0, 0,
		     stream, format, 0, recurse + 1, pretty);
	  field_physname
	    = TYPE_FN_FIELD_PHYSNAME (TYPE_FN_FIELDLIST1 (type, fn), oi);
	  /* pai: (temp) FIXME Maybe this should be DMGL_ANSI */
	  vf_name = cplus_demangle (field_physname, DMGL_ARM);
	  fprintf_filtered (stream, " %s", vf_name);
	  if (--(*vfuncs) > 0)
	    fputs_filtered (", ", stream);
	}
}



void
_initialize_cp_valprint (void)
{
  deprecated_add_show_from_set
    (add_set_cmd ("static-members", class_support, var_boolean,
		  (char *) &static_field_print,
		  "Set printing of C++ static members.",
		  &setprintlist),
     &showprintlist);
  /* Turn on printing of static fields.  */
  static_field_print = 1;

  deprecated_add_show_from_set
    (add_set_cmd ("vtbl", class_support, var_boolean, (char *) &vtblprint,
		  "Set printing of C++ virtual function tables.",
		  &setprintlist),
     &showprintlist);

  deprecated_add_show_from_set
    (add_set_cmd ("object", class_support, var_boolean, (char *) &objectprint,
	      "Set printing of object's derived type based on vtable info.",
		  &setprintlist),
     &showprintlist);

  /* Give people the defaults which they are used to.  */
  objectprint = 0;
  vtblprint = 0;
  obstack_begin (&dont_print_vb_obstack, 32 * sizeof (struct type *));
  obstack_specify_allocation (&dont_print_statmem_obstack,
			      32 * sizeof (CORE_ADDR), sizeof (CORE_ADDR),
			      xmalloc, xfree);
}