1 /* Support for printing Pascal values for GDB, the GNU debugger.
3 Copyright (C) 2000, 2001, 2003, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 /* This file is derived from c-valprint.c */
24 #include "gdb_obstack.h"
27 #include "expression.h"
34 #include "typeprint.h"
40 #include "cp-support.h"
45 /* Print data of type TYPE located at VALADDR (within GDB), which came from
46 the inferior at address ADDRESS, onto stdio stream STREAM according to
47 FORMAT (a letter or 0 for natural format). The data at VALADDR is in
50 If the data are a string pointer, returns the number of string characters
53 If DEREF_REF is nonzero, then dereference references, otherwise just print
56 The PRETTY parameter controls prettyprinting. */
60 pascal_val_print (struct type *type, const gdb_byte *valaddr,
61 int embedded_offset, CORE_ADDR address,
62 struct ui_file *stream, int format, int deref_ref,
63 int recurse, enum val_prettyprint pretty)
65 unsigned int i = 0; /* Number of characters printed */
69 int length_pos, length_size, string_pos;
75 switch (TYPE_CODE (type))
78 if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
80 elttype = check_typedef (TYPE_TARGET_TYPE (type));
81 eltlen = TYPE_LENGTH (elttype);
82 len = TYPE_LENGTH (type) / eltlen;
83 if (prettyprint_arrays)
85 print_spaces_filtered (2 + 2 * recurse, stream);
87 /* For an array of chars, print with string syntax. */
89 && ((TYPE_CODE (elttype) == TYPE_CODE_INT)
90 || ((current_language->la_language == language_pascal)
91 && (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
92 && (format == 0 || format == 's'))
94 /* If requested, look for the first null char and only print
96 if (stop_print_at_null)
98 unsigned int temp_len;
100 /* Look for a NULL char. */
102 (valaddr + embedded_offset)[temp_len]
103 && temp_len < len && temp_len < print_max;
108 LA_PRINT_STRING (stream, valaddr + embedded_offset, len, 1, 0);
113 fprintf_filtered (stream, "{");
114 /* If this is a virtual function table, print the 0th
115 entry specially, and the rest of the members normally. */
116 if (pascal_object_is_vtbl_ptr_type (elttype))
119 fprintf_filtered (stream, "%d vtable entries", len - 1);
125 val_print_array_elements (type, valaddr + embedded_offset, address, stream,
126 format, deref_ref, recurse, pretty, i);
127 fprintf_filtered (stream, "}");
131 /* Array of unspecified length: treat like pointer to first elt. */
133 goto print_unpacked_pointer;
136 if (format && format != 's')
138 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
141 if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
143 /* Print the unmangled name if desired. */
144 /* Print vtable entry - we only get here if we ARE using
145 -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
146 /* Extract the address, assume that it is unsigned. */
147 print_address_demangle (extract_unsigned_integer (valaddr + embedded_offset, TYPE_LENGTH (type)),
151 elttype = check_typedef (TYPE_TARGET_TYPE (type));
153 addr = unpack_pointer (type, valaddr + embedded_offset);
154 print_unpacked_pointer:
155 elttype = check_typedef (TYPE_TARGET_TYPE (type));
157 if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
159 /* Try to print what function it points to. */
160 print_address_demangle (addr, stream, demangle);
161 /* Return value is irrelevant except for string pointers. */
165 if (addressprint && format != 's')
167 fputs_filtered (paddress (addr), stream);
170 /* For a pointer to char or unsigned char, also print the string
171 pointed to, unless pointer is null. */
172 if (TYPE_LENGTH (elttype) == 1
173 && (TYPE_CODE (elttype) == TYPE_CODE_INT
174 || TYPE_CODE(elttype) == TYPE_CODE_CHAR)
175 && (format == 0 || format == 's')
178 /* no wide string yet */
179 i = val_print_string (addr, -1, 1, stream);
181 /* also for pointers to pascal strings */
182 /* Note: this is Free Pascal specific:
183 as GDB does not recognize stabs pascal strings
184 Pascal strings are mapped to records
185 with lowercase names PM */
186 if (is_pascal_string_type (elttype, &length_pos, &length_size,
187 &string_pos, &char_size, NULL)
190 ULONGEST string_length;
192 buffer = xmalloc (length_size);
193 read_memory (addr + length_pos, buffer, length_size);
194 string_length = extract_unsigned_integer (buffer, length_size);
196 i = val_print_string (addr + string_pos, string_length, char_size, stream);
198 else if (pascal_object_is_vtbl_member (type))
200 /* print vtbl's nicely */
201 CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
203 struct minimal_symbol *msymbol =
204 lookup_minimal_symbol_by_pc (vt_address);
205 if ((msymbol != NULL)
206 && (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
208 fputs_filtered (" <", stream);
209 fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
210 fputs_filtered (">", stream);
212 if (vt_address && vtblprint)
214 struct value *vt_val;
215 struct symbol *wsym = (struct symbol *) NULL;
217 struct block *block = (struct block *) NULL;
221 wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), block,
222 VAR_DOMAIN, &is_this_fld, NULL);
226 wtype = SYMBOL_TYPE (wsym);
230 wtype = TYPE_TARGET_TYPE (type);
232 vt_val = value_at (wtype, vt_address);
233 common_val_print (vt_val, stream, format, deref_ref,
234 recurse + 1, pretty, current_language);
237 fprintf_filtered (stream, "\n");
238 print_spaces_filtered (2 + 2 * recurse, stream);
243 /* Return number of characters printed, including the terminating
244 '\0' if we reached the end. val_print_string takes care including
245 the terminating '\0' if necessary. */
251 elttype = check_typedef (TYPE_TARGET_TYPE (type));
254 fprintf_filtered (stream, "@");
255 /* Extract the address, assume that it is unsigned. */
256 fputs_filtered (paddress (
257 extract_unsigned_integer (valaddr + embedded_offset,
258 gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT)), stream);
260 fputs_filtered (": ", stream);
262 /* De-reference the reference. */
265 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
267 struct value *deref_val =
269 (TYPE_TARGET_TYPE (type),
270 unpack_pointer (lookup_pointer_type (builtin_type_void),
271 valaddr + embedded_offset));
272 common_val_print (deref_val, stream, format, deref_ref,
273 recurse + 1, pretty, current_language);
276 fputs_filtered ("???", stream);
280 case TYPE_CODE_UNION:
281 if (recurse && !unionprint)
283 fprintf_filtered (stream, "{...}");
287 case TYPE_CODE_STRUCT:
288 if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
290 /* Print the unmangled name if desired. */
291 /* Print vtable entry - we only get here if NOT using
292 -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
293 /* Extract the address, assume that it is unsigned. */
294 print_address_demangle
295 (extract_unsigned_integer (valaddr + embedded_offset + TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
296 TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
301 if (is_pascal_string_type (type, &length_pos, &length_size,
302 &string_pos, &char_size, NULL))
304 len = extract_unsigned_integer (valaddr + embedded_offset + length_pos, length_size);
305 LA_PRINT_STRING (stream, valaddr + embedded_offset + string_pos, len, char_size, 0);
308 pascal_object_print_value_fields (type, valaddr + embedded_offset, address, stream, format,
309 recurse, pretty, NULL, 0);
316 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
319 len = TYPE_NFIELDS (type);
320 val = unpack_long (type, valaddr + embedded_offset);
321 for (i = 0; i < len; i++)
324 if (val == TYPE_FIELD_BITPOS (type, i))
331 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
335 print_longest (stream, 'd', 0, val);
339 case TYPE_CODE_FLAGS:
341 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
343 val_print_type_code_flags (type, valaddr + embedded_offset, stream);
349 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
352 /* FIXME, we should consider, at least for ANSI C language, eliminating
353 the distinction made between FUNCs and POINTERs to FUNCs. */
354 fprintf_filtered (stream, "{");
355 type_print (type, "", stream, -1);
356 fprintf_filtered (stream, "} ");
357 /* Try to print what function it points to, and its address. */
358 print_address_demangle (address, stream, demangle);
362 format = format ? format : output_format;
364 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
367 val = unpack_long (type, valaddr + embedded_offset);
369 fputs_filtered ("false", stream);
371 fputs_filtered ("true", stream);
374 fputs_filtered ("true (", stream);
375 fprintf_filtered (stream, "%ld)", (long int) val);
380 case TYPE_CODE_RANGE:
381 /* FIXME: create_range_type does not set the unsigned bit in a
382 range type (I think it probably should copy it from the target
383 type), so we won't print values which are too large to
384 fit in a signed integer correctly. */
385 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
386 print with the target type, though, because the size of our type
387 and the target type might differ). */
391 format = format ? format : output_format;
394 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
398 val_print_type_code_int (type, valaddr + embedded_offset, stream);
403 format = format ? format : output_format;
406 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
410 val = unpack_long (type, valaddr + embedded_offset);
411 if (TYPE_UNSIGNED (type))
412 fprintf_filtered (stream, "%u", (unsigned int) val);
414 fprintf_filtered (stream, "%d", (int) val);
415 fputs_filtered (" ", stream);
416 LA_PRINT_CHAR ((unsigned char) val, stream);
423 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
427 print_floating (valaddr + embedded_offset, type, stream);
431 case TYPE_CODE_BITSTRING:
433 elttype = TYPE_INDEX_TYPE (type);
434 CHECK_TYPEDEF (elttype);
435 if (TYPE_STUB (elttype))
437 fprintf_filtered (stream, "<incomplete type>");
443 struct type *range = elttype;
444 LONGEST low_bound, high_bound;
446 int is_bitstring = TYPE_CODE (type) == TYPE_CODE_BITSTRING;
450 fputs_filtered ("B'", stream);
452 fputs_filtered ("[", stream);
454 i = get_discrete_bounds (range, &low_bound, &high_bound);
458 fputs_filtered ("<error value>", stream);
462 for (i = low_bound; i <= high_bound; i++)
464 int element = value_bit_index (type, valaddr + embedded_offset, i);
468 goto maybe_bad_bstring;
471 fprintf_filtered (stream, "%d", element);
475 fputs_filtered (", ", stream);
476 print_type_scalar (range, i, stream);
479 if (i + 1 <= high_bound && value_bit_index (type, valaddr + embedded_offset, ++i))
482 fputs_filtered ("..", stream);
483 while (i + 1 <= high_bound
484 && value_bit_index (type, valaddr + embedded_offset, ++i))
486 print_type_scalar (range, j, stream);
492 fputs_filtered ("'", stream);
494 fputs_filtered ("]", stream);
499 fprintf_filtered (stream, "void");
502 case TYPE_CODE_ERROR:
503 fprintf_filtered (stream, "<error type>");
506 case TYPE_CODE_UNDEF:
507 /* This happens (without TYPE_FLAG_STUB set) on systems which don't use
508 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
509 and no complete type for struct foo in that file. */
510 fprintf_filtered (stream, "<incomplete type>");
514 error (_("Invalid pascal type code %d in symbol table."), TYPE_CODE (type));
521 pascal_value_print (struct value *val, struct ui_file *stream, int format,
522 enum val_prettyprint pretty)
524 struct type *type = value_type (val);
526 /* If it is a pointer, indicate what it points to.
528 Print type also if it is a reference.
530 Object pascal: if it is a member pointer, we will take care
531 of that when we print it. */
532 if (TYPE_CODE (type) == TYPE_CODE_PTR
533 || TYPE_CODE (type) == TYPE_CODE_REF)
535 /* Hack: remove (char *) for char strings. Their
536 type is indicated by the quoted string anyway. */
537 if (TYPE_CODE (type) == TYPE_CODE_PTR
538 && TYPE_NAME (type) == NULL
539 && TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL
540 && strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char") == 0)
546 fprintf_filtered (stream, "(");
547 type_print (type, "", stream, -1);
548 fprintf_filtered (stream, ") ");
551 return common_val_print (val, stream, format, 1, 0, pretty,
556 /******************************************************************************
557 Inserted from cp-valprint
558 ******************************************************************************/
560 extern int vtblprint; /* Controls printing of vtbl's */
561 extern int objectprint; /* Controls looking up an object's derived type
562 using what we find in its vtables. */
563 static int pascal_static_field_print; /* Controls printing of static fields. */
565 show_pascal_static_field_print (struct ui_file *file, int from_tty,
566 struct cmd_list_element *c, const char *value)
568 fprintf_filtered (file, _("Printing of pascal static members is %s.\n"),
572 static struct obstack dont_print_vb_obstack;
573 static struct obstack dont_print_statmem_obstack;
575 static void pascal_object_print_static_field (struct value *,
576 struct ui_file *, int, int,
577 enum val_prettyprint);
579 static void pascal_object_print_value (struct type *, const gdb_byte *,
580 CORE_ADDR, struct ui_file *,
581 int, int, enum val_prettyprint,
584 /* It was changed to this after 2.4.5. */
585 const char pascal_vtbl_ptr_name[] =
586 {'_', '_', 'v', 't', 'b', 'l', '_', 'p', 't', 'r', '_', 't', 'y', 'p', 'e', 0};
588 /* Return truth value for assertion that TYPE is of the type
589 "pointer to virtual function". */
592 pascal_object_is_vtbl_ptr_type (struct type *type)
594 char *typename = type_name_no_tag (type);
596 return (typename != NULL
597 && strcmp (typename, pascal_vtbl_ptr_name) == 0);
600 /* Return truth value for the assertion that TYPE is of the type
601 "pointer to virtual function table". */
604 pascal_object_is_vtbl_member (struct type *type)
606 if (TYPE_CODE (type) == TYPE_CODE_PTR)
608 type = TYPE_TARGET_TYPE (type);
609 if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
611 type = TYPE_TARGET_TYPE (type);
612 if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */
613 || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */
615 /* Virtual functions tables are full of pointers
616 to virtual functions. */
617 return pascal_object_is_vtbl_ptr_type (type);
624 /* Mutually recursive subroutines of pascal_object_print_value and
625 c_val_print to print out a structure's fields:
626 pascal_object_print_value_fields and pascal_object_print_value.
628 TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
629 same meanings as in pascal_object_print_value and c_val_print.
631 DONT_PRINT is an array of baseclass types that we
632 should not print, or zero if called from top level. */
635 pascal_object_print_value_fields (struct type *type, const gdb_byte *valaddr,
636 CORE_ADDR address, struct ui_file *stream,
637 int format, int recurse,
638 enum val_prettyprint pretty,
639 struct type **dont_print_vb,
640 int dont_print_statmem)
642 int i, len, n_baseclasses;
643 char *last_dont_print = obstack_next_free (&dont_print_statmem_obstack);
645 CHECK_TYPEDEF (type);
647 fprintf_filtered (stream, "{");
648 len = TYPE_NFIELDS (type);
649 n_baseclasses = TYPE_N_BASECLASSES (type);
651 /* Print out baseclasses such that we don't print
652 duplicates of virtual baseclasses. */
653 if (n_baseclasses > 0)
654 pascal_object_print_value (type, valaddr, address, stream,
655 format, recurse + 1, pretty, dont_print_vb);
657 if (!len && n_baseclasses == 1)
658 fprintf_filtered (stream, "<No data fields>");
661 struct obstack tmp_obstack = dont_print_statmem_obstack;
664 if (dont_print_statmem == 0)
666 /* If we're at top level, carve out a completely fresh
667 chunk of the obstack and use that until this particular
668 invocation returns. */
669 obstack_finish (&dont_print_statmem_obstack);
672 for (i = n_baseclasses; i < len; i++)
674 /* If requested, skip printing of static fields. */
675 if (!pascal_static_field_print && TYPE_FIELD_STATIC (type, i))
678 fprintf_filtered (stream, ", ");
679 else if (n_baseclasses > 0)
683 fprintf_filtered (stream, "\n");
684 print_spaces_filtered (2 + 2 * recurse, stream);
685 fputs_filtered ("members of ", stream);
686 fputs_filtered (type_name_no_tag (type), stream);
687 fputs_filtered (": ", stream);
694 fprintf_filtered (stream, "\n");
695 print_spaces_filtered (2 + 2 * recurse, stream);
699 wrap_here (n_spaces (2 + 2 * recurse));
703 if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
704 fputs_filtered ("\"( ptr \"", stream);
706 fputs_filtered ("\"( nodef \"", stream);
707 if (TYPE_FIELD_STATIC (type, i))
708 fputs_filtered ("static ", stream);
709 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
711 DMGL_PARAMS | DMGL_ANSI);
712 fputs_filtered ("\" \"", stream);
713 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
715 DMGL_PARAMS | DMGL_ANSI);
716 fputs_filtered ("\") \"", stream);
720 annotate_field_begin (TYPE_FIELD_TYPE (type, i));
722 if (TYPE_FIELD_STATIC (type, i))
723 fputs_filtered ("static ", stream);
724 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
726 DMGL_PARAMS | DMGL_ANSI);
727 annotate_field_name_end ();
728 fputs_filtered (" = ", stream);
729 annotate_field_value ();
732 if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
736 /* Bitfields require special handling, especially due to byte
738 if (TYPE_FIELD_IGNORE (type, i))
740 fputs_filtered ("<optimized out or zero length>", stream);
744 v = value_from_longest (TYPE_FIELD_TYPE (type, i),
745 unpack_field_as_long (type, valaddr, i));
747 common_val_print (v, stream, format, 0, recurse + 1,
748 pretty, current_language);
753 if (TYPE_FIELD_IGNORE (type, i))
755 fputs_filtered ("<optimized out or zero length>", stream);
757 else if (TYPE_FIELD_STATIC (type, i))
759 /* struct value *v = value_static_field (type, i); v4.17 specific */
761 v = value_from_longest (TYPE_FIELD_TYPE (type, i),
762 unpack_field_as_long (type, valaddr, i));
765 fputs_filtered ("<optimized out>", stream);
767 pascal_object_print_static_field (v, stream, format,
768 recurse + 1, pretty);
772 /* val_print (TYPE_FIELD_TYPE (type, i),
773 valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
774 address + TYPE_FIELD_BITPOS (type, i) / 8, 0,
775 stream, format, 0, recurse + 1, pretty); */
776 val_print (TYPE_FIELD_TYPE (type, i),
777 valaddr, TYPE_FIELD_BITPOS (type, i) / 8,
778 address + TYPE_FIELD_BITPOS (type, i) / 8,
779 stream, format, 0, recurse + 1, pretty,
783 annotate_field_end ();
786 if (dont_print_statmem == 0)
788 /* Free the space used to deal with the printing
789 of the members from top level. */
790 obstack_free (&dont_print_statmem_obstack, last_dont_print);
791 dont_print_statmem_obstack = tmp_obstack;
796 fprintf_filtered (stream, "\n");
797 print_spaces_filtered (2 * recurse, stream);
800 fprintf_filtered (stream, "}");
803 /* Special val_print routine to avoid printing multiple copies of virtual
807 pascal_object_print_value (struct type *type, const gdb_byte *valaddr,
808 CORE_ADDR address, struct ui_file *stream,
809 int format, int recurse,
810 enum val_prettyprint pretty,
811 struct type **dont_print_vb)
813 struct type **last_dont_print
814 = (struct type **) obstack_next_free (&dont_print_vb_obstack);
815 struct obstack tmp_obstack = dont_print_vb_obstack;
816 int i, n_baseclasses = TYPE_N_BASECLASSES (type);
818 if (dont_print_vb == 0)
820 /* If we're at top level, carve out a completely fresh
821 chunk of the obstack and use that until this particular
822 invocation returns. */
823 /* Bump up the high-water mark. Now alpha is omega. */
824 obstack_finish (&dont_print_vb_obstack);
827 for (i = 0; i < n_baseclasses; i++)
830 struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
831 char *basename = type_name_no_tag (baseclass);
832 const gdb_byte *base_valaddr;
834 if (BASETYPE_VIA_VIRTUAL (type, i))
836 struct type **first_dont_print
837 = (struct type **) obstack_base (&dont_print_vb_obstack);
839 int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
843 if (baseclass == first_dont_print[j])
846 obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
849 boffset = baseclass_offset (type, i, valaddr, address);
853 fprintf_filtered (stream, "\n");
854 print_spaces_filtered (2 * recurse, stream);
856 fputs_filtered ("<", stream);
857 /* Not sure what the best notation is in the case where there is no
860 fputs_filtered (basename ? basename : "", stream);
861 fputs_filtered ("> = ", stream);
863 /* The virtual base class pointer might have been clobbered by the
864 user program. Make sure that it still points to a valid memory
867 if (boffset != -1 && (boffset < 0 || boffset >= TYPE_LENGTH (type)))
869 /* FIXME (alloc): not safe is baseclass is really really big. */
870 gdb_byte *buf = alloca (TYPE_LENGTH (baseclass));
872 if (target_read_memory (address + boffset, buf,
873 TYPE_LENGTH (baseclass)) != 0)
877 base_valaddr = valaddr + boffset;
880 fprintf_filtered (stream, "<invalid address>");
882 pascal_object_print_value_fields (baseclass, base_valaddr, address + boffset,
883 stream, format, recurse, pretty,
884 (struct type **) obstack_base (&dont_print_vb_obstack),
886 fputs_filtered (", ", stream);
892 if (dont_print_vb == 0)
894 /* Free the space used to deal with the printing
895 of this type from top level. */
896 obstack_free (&dont_print_vb_obstack, last_dont_print);
897 /* Reset watermark so that we can continue protecting
898 ourselves from whatever we were protecting ourselves. */
899 dont_print_vb_obstack = tmp_obstack;
903 /* Print value of a static member.
904 To avoid infinite recursion when printing a class that contains
905 a static instance of the class, we keep the addresses of all printed
906 static member classes in an obstack and refuse to print them more
909 VAL contains the value to print, STREAM, RECURSE, and PRETTY
910 have the same meanings as in c_val_print. */
913 pascal_object_print_static_field (struct value *val,
914 struct ui_file *stream, int format,
915 int recurse, enum val_prettyprint pretty)
917 struct type *type = value_type (val);
919 if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
921 CORE_ADDR *first_dont_print;
925 = (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack);
926 i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack)
931 if (VALUE_ADDRESS (val) == first_dont_print[i])
933 fputs_filtered ("<same as static member of an already seen type>",
939 obstack_grow (&dont_print_statmem_obstack, (char *) &VALUE_ADDRESS (val),
942 CHECK_TYPEDEF (type);
943 pascal_object_print_value_fields (type, value_contents (val), VALUE_ADDRESS (val),
944 stream, format, recurse, pretty, NULL, 1);
947 common_val_print (val, stream, format, 0, recurse, pretty,
951 extern initialize_file_ftype _initialize_pascal_valprint; /* -Wmissing-prototypes */
954 _initialize_pascal_valprint (void)
956 add_setshow_boolean_cmd ("pascal_static-members", class_support,
957 &pascal_static_field_print, _("\
958 Set printing of pascal static members."), _("\
959 Show printing of pascal static members."), NULL,
961 show_pascal_static_field_print,
962 &setprintlist, &showprintlist);
963 /* Turn on printing of static fields. */
964 pascal_static_field_print = 1;