1 /* Support for printing Pascal values for GDB, the GNU debugger.
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 /* This file is derived from c-valprint.c */
27 #include "expression.h"
34 #include "typeprint.h"
44 /* Print data of type TYPE located at VALADDR (within GDB), which came from
45 the inferior at address ADDRESS, onto stdio stream STREAM according to
46 FORMAT (a letter or 0 for natural format). The data at VALADDR is in
49 If the data are a string pointer, returns the number of string characters
52 If DEREF_REF is nonzero, then dereference references, otherwise just print
55 The PRETTY parameter controls prettyprinting. */
59 pascal_val_print (struct type *type, char *valaddr, int embedded_offset,
60 CORE_ADDR address, struct ui_file *stream, int format,
61 int deref_ref, int recurse, enum val_prettyprint pretty)
63 register unsigned int i = 0; /* Number of characters printed */
67 int length_pos, length_size, string_pos;
73 switch (TYPE_CODE (type))
76 if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
78 elttype = check_typedef (TYPE_TARGET_TYPE (type));
79 eltlen = TYPE_LENGTH (elttype);
80 len = TYPE_LENGTH (type) / eltlen;
81 if (prettyprint_arrays)
83 print_spaces_filtered (2 + 2 * recurse, stream);
85 /* For an array of chars, print with string syntax. */
87 ((TYPE_CODE (elttype) == TYPE_CODE_INT)
88 || ((current_language->la_language == language_m2)
89 && (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
90 && (format == 0 || format == 's'))
92 /* If requested, look for the first null char and only print
94 if (stop_print_at_null)
96 unsigned int temp_len;
98 /* Look for a NULL char. */
100 (valaddr + embedded_offset)[temp_len]
101 && temp_len < len && temp_len < print_max;
106 LA_PRINT_STRING (stream, valaddr + embedded_offset, len, 1, 0);
111 fprintf_filtered (stream, "{");
112 /* If this is a virtual function table, print the 0th
113 entry specially, and the rest of the members normally. */
114 if (pascal_object_is_vtbl_ptr_type (elttype))
117 fprintf_filtered (stream, "%d vtable entries", len - 1);
123 val_print_array_elements (type, valaddr + embedded_offset, address, stream,
124 format, deref_ref, recurse, pretty, i);
125 fprintf_filtered (stream, "}");
129 /* Array of unspecified length: treat like pointer to first elt. */
131 goto print_unpacked_pointer;
134 if (format && format != 's')
136 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
139 if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
141 /* Print the unmangled name if desired. */
142 /* Print vtable entry - we only get here if we ARE using
143 -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
144 print_address_demangle (extract_address (valaddr + embedded_offset, TYPE_LENGTH (type)),
148 elttype = check_typedef (TYPE_TARGET_TYPE (type));
149 if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
151 pascal_object_print_class_method (valaddr + embedded_offset, type, stream);
153 else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
155 pascal_object_print_class_member (valaddr + embedded_offset,
156 TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
161 addr = unpack_pointer (type, valaddr + embedded_offset);
162 print_unpacked_pointer:
163 elttype = check_typedef (TYPE_TARGET_TYPE (type));
165 if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
167 /* Try to print what function it points to. */
168 print_address_demangle (addr, stream, demangle);
169 /* Return value is irrelevant except for string pointers. */
173 if (addressprint && format != 's')
175 print_address_numeric (addr, 1, stream);
178 /* For a pointer to char or unsigned char, also print the string
179 pointed to, unless pointer is null. */
180 if (TYPE_LENGTH (elttype) == 1
181 && TYPE_CODE (elttype) == TYPE_CODE_INT
182 && (format == 0 || format == 's')
185 /* no wide string yet */
186 i = val_print_string (addr, -1, 1, stream);
188 /* also for pointers to pascal strings */
189 /* Note: this is Free Pascal specific:
190 as GDB does not recognize stabs pascal strings
191 Pascal strings are mapped to records
192 with lowercase names PM */
193 if (is_pascal_string_type (elttype, &length_pos, &length_size,
194 &string_pos, &char_size, NULL)
197 ULONGEST string_length;
199 buffer = xmalloc (length_size);
200 read_memory (addr + length_pos, buffer, length_size);
201 string_length = extract_unsigned_integer (buffer, length_size);
203 i = val_print_string (addr + string_pos, string_length, char_size, stream);
205 else if (pascal_object_is_vtbl_member (type))
207 /* print vtbl's nicely */
208 CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
210 struct minimal_symbol *msymbol =
211 lookup_minimal_symbol_by_pc (vt_address);
212 if ((msymbol != NULL)
213 && (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
215 fputs_filtered (" <", stream);
216 fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream);
217 fputs_filtered (">", stream);
219 if (vt_address && vtblprint)
221 struct value *vt_val;
222 struct symbol *wsym = (struct symbol *) NULL;
225 struct block *block = (struct block *) NULL;
229 wsym = lookup_symbol (SYMBOL_NAME (msymbol), block,
230 VAR_NAMESPACE, &is_this_fld, &s);
234 wtype = SYMBOL_TYPE (wsym);
238 wtype = TYPE_TARGET_TYPE (type);
240 vt_val = value_at (wtype, vt_address, NULL);
241 val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
242 VALUE_ADDRESS (vt_val), stream, format,
243 deref_ref, recurse + 1, pretty);
246 fprintf_filtered (stream, "\n");
247 print_spaces_filtered (2 + 2 * recurse, stream);
252 /* Return number of characters printed, including the terminating
253 '\0' if we reached the end. val_print_string takes care including
254 the terminating '\0' if necessary. */
259 case TYPE_CODE_MEMBER:
260 error ("not implemented: member type in pascal_val_print");
264 elttype = check_typedef (TYPE_TARGET_TYPE (type));
265 if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
267 pascal_object_print_class_member (valaddr + embedded_offset,
268 TYPE_DOMAIN_TYPE (elttype),
274 fprintf_filtered (stream, "@");
275 print_address_numeric
276 (extract_address (valaddr + embedded_offset,
277 TARGET_PTR_BIT / HOST_CHAR_BIT), 1, stream);
279 fputs_filtered (": ", stream);
281 /* De-reference the reference. */
284 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
286 struct value *deref_val =
288 (TYPE_TARGET_TYPE (type),
289 unpack_pointer (lookup_pointer_type (builtin_type_void),
290 valaddr + embedded_offset),
292 val_print (VALUE_TYPE (deref_val),
293 VALUE_CONTENTS (deref_val), 0,
294 VALUE_ADDRESS (deref_val), stream, format,
295 deref_ref, recurse + 1, pretty);
298 fputs_filtered ("???", stream);
302 case TYPE_CODE_UNION:
303 if (recurse && !unionprint)
305 fprintf_filtered (stream, "{...}");
309 case TYPE_CODE_STRUCT:
310 if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
312 /* Print the unmangled name if desired. */
313 /* Print vtable entry - we only get here if NOT using
314 -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
315 print_address_demangle (extract_address (
316 valaddr + embedded_offset + TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
317 TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
322 if (is_pascal_string_type (type, &length_pos, &length_size,
323 &string_pos, &char_size, NULL))
325 len = extract_unsigned_integer (valaddr + embedded_offset + length_pos, length_size);
326 LA_PRINT_STRING (stream, valaddr + embedded_offset + string_pos, len, char_size, 0);
329 pascal_object_print_value_fields (type, valaddr + embedded_offset, address, stream, format,
330 recurse, pretty, NULL, 0);
337 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
340 len = TYPE_NFIELDS (type);
341 val = unpack_long (type, valaddr + embedded_offset);
342 for (i = 0; i < len; i++)
345 if (val == TYPE_FIELD_BITPOS (type, i))
352 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
356 print_longest (stream, 'd', 0, val);
363 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
366 /* FIXME, we should consider, at least for ANSI C language, eliminating
367 the distinction made between FUNCs and POINTERs to FUNCs. */
368 fprintf_filtered (stream, "{");
369 type_print (type, "", stream, -1);
370 fprintf_filtered (stream, "} ");
371 /* Try to print what function it points to, and its address. */
372 print_address_demangle (address, stream, demangle);
376 format = format ? format : output_format;
378 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
381 val = unpack_long (type, valaddr + embedded_offset);
383 fputs_filtered ("false", stream);
385 fputs_filtered ("true", stream);
388 fputs_filtered ("true (", stream);
389 fprintf_filtered (stream, "%ld)", (long int) val);
394 case TYPE_CODE_RANGE:
395 /* FIXME: create_range_type does not set the unsigned bit in a
396 range type (I think it probably should copy it from the target
397 type), so we won't print values which are too large to
398 fit in a signed integer correctly. */
399 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
400 print with the target type, though, because the size of our type
401 and the target type might differ). */
405 format = format ? format : output_format;
408 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
412 val_print_type_code_int (type, valaddr + embedded_offset, stream);
417 format = format ? format : output_format;
420 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
424 val = unpack_long (type, valaddr + embedded_offset);
425 if (TYPE_UNSIGNED (type))
426 fprintf_filtered (stream, "%u", (unsigned int) val);
428 fprintf_filtered (stream, "%d", (int) val);
429 fputs_filtered (" ", stream);
430 LA_PRINT_CHAR ((unsigned char) val, stream);
437 print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
441 print_floating (valaddr + embedded_offset, type, stream);
445 case TYPE_CODE_BITSTRING:
447 elttype = TYPE_INDEX_TYPE (type);
448 CHECK_TYPEDEF (elttype);
449 if (TYPE_STUB (elttype))
451 fprintf_filtered (stream, "<incomplete type>");
457 struct type *range = elttype;
458 LONGEST low_bound, high_bound;
460 int is_bitstring = TYPE_CODE (type) == TYPE_CODE_BITSTRING;
464 fputs_filtered ("B'", stream);
466 fputs_filtered ("[", stream);
468 i = get_discrete_bounds (range, &low_bound, &high_bound);
472 fputs_filtered ("<error value>", stream);
476 for (i = low_bound; i <= high_bound; i++)
478 int element = value_bit_index (type, valaddr + embedded_offset, i);
482 goto maybe_bad_bstring;
485 fprintf_filtered (stream, "%d", element);
489 fputs_filtered (", ", stream);
490 print_type_scalar (range, i, stream);
493 if (i + 1 <= high_bound && value_bit_index (type, valaddr + embedded_offset, ++i))
496 fputs_filtered ("..", stream);
497 while (i + 1 <= high_bound
498 && value_bit_index (type, valaddr + embedded_offset, ++i))
500 print_type_scalar (range, j, stream);
506 fputs_filtered ("'", stream);
508 fputs_filtered ("]", stream);
513 fprintf_filtered (stream, "void");
516 case TYPE_CODE_ERROR:
517 fprintf_filtered (stream, "<error type>");
520 case TYPE_CODE_UNDEF:
521 /* This happens (without TYPE_FLAG_STUB set) on systems which don't use
522 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
523 and no complete type for struct foo in that file. */
524 fprintf_filtered (stream, "<incomplete type>");
528 error ("Invalid pascal type code %d in symbol table.", TYPE_CODE (type));
535 pascal_value_print (struct value *val, struct ui_file *stream, int format,
536 enum val_prettyprint pretty)
538 struct type *type = VALUE_TYPE (val);
540 /* If it is a pointer, indicate what it points to.
542 Print type also if it is a reference.
544 Object pascal: if it is a member pointer, we will take care
545 of that when we print it. */
546 if (TYPE_CODE (type) == TYPE_CODE_PTR ||
547 TYPE_CODE (type) == TYPE_CODE_REF)
549 /* Hack: remove (char *) for char strings. Their
550 type is indicated by the quoted string anyway. */
551 if (TYPE_CODE (type) == TYPE_CODE_PTR &&
552 TYPE_NAME (type) == NULL &&
553 TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL &&
554 STREQ (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char"))
560 fprintf_filtered (stream, "(");
561 type_print (type, "", stream, -1);
562 fprintf_filtered (stream, ") ");
565 return val_print (type, VALUE_CONTENTS (val), VALUE_EMBEDDED_OFFSET (val),
566 VALUE_ADDRESS (val) + VALUE_OFFSET (val),
567 stream, format, 1, 0, pretty);
571 /******************************************************************************
572 Inserted from cp-valprint
573 ******************************************************************************/
575 extern int vtblprint; /* Controls printing of vtbl's */
576 extern int objectprint; /* Controls looking up an object's derived type
577 using what we find in its vtables. */
578 static int pascal_static_field_print; /* Controls printing of static fields. */
580 static struct obstack dont_print_vb_obstack;
581 static struct obstack dont_print_statmem_obstack;
583 static void pascal_object_print_static_field (struct type *, struct value *,
584 struct ui_file *, int, int,
585 enum val_prettyprint);
588 pascal_object_print_value (struct type *, char *, CORE_ADDR, struct ui_file *,
589 int, int, enum val_prettyprint, struct type **);
592 pascal_object_print_class_method (char *valaddr, struct type *type,
593 struct ui_file *stream)
596 struct fn_field *f = NULL;
605 struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));
607 domain = TYPE_DOMAIN_TYPE (target_type);
608 if (domain == (struct type *) NULL)
610 fprintf_filtered (stream, "<unknown>");
613 addr = unpack_pointer (lookup_pointer_type (builtin_type_void), valaddr);
614 if (METHOD_PTR_IS_VIRTUAL (addr))
616 offset = METHOD_PTR_TO_VOFFSET (addr);
617 len = TYPE_NFN_FIELDS (domain);
618 for (i = 0; i < len; i++)
620 f = TYPE_FN_FIELDLIST1 (domain, i);
621 len2 = TYPE_FN_FIELDLIST_LENGTH (domain, i);
623 for (j = 0; j < len2; j++)
626 if (TYPE_FN_FIELD_VOFFSET (f, j) == offset)
628 if (TYPE_FN_FIELD_STUB (f, j))
629 check_stub_method (domain, i, j);
638 sym = find_pc_function (addr);
641 error ("invalid pointer to member function");
643 len = TYPE_NFN_FIELDS (domain);
644 for (i = 0; i < len; i++)
646 f = TYPE_FN_FIELDLIST1 (domain, i);
647 len2 = TYPE_FN_FIELDLIST_LENGTH (domain, i);
649 for (j = 0; j < len2; j++)
652 if (TYPE_FN_FIELD_STUB (f, j))
653 check_stub_method (domain, i, j);
654 if (STREQ (SYMBOL_NAME (sym), TYPE_FN_FIELD_PHYSNAME (f, j)))
664 char *demangled_name;
666 fprintf_filtered (stream, "&");
667 fprintf_filtered (stream, kind);
668 demangled_name = cplus_demangle (TYPE_FN_FIELD_PHYSNAME (f, j),
669 DMGL_ANSI | DMGL_PARAMS);
670 if (demangled_name == NULL)
671 fprintf_filtered (stream, "<badly mangled name %s>",
672 TYPE_FN_FIELD_PHYSNAME (f, j));
675 fputs_filtered (demangled_name, stream);
676 xfree (demangled_name);
681 fprintf_filtered (stream, "(");
682 type_print (type, "", stream, -1);
683 fprintf_filtered (stream, ") %d", (int) addr >> 3);
687 /* It was changed to this after 2.4.5. */
688 const char pascal_vtbl_ptr_name[] =
689 {'_', '_', 'v', 't', 'b', 'l', '_', 'p', 't', 'r', '_', 't', 'y', 'p', 'e', 0};
691 /* Return truth value for assertion that TYPE is of the type
692 "pointer to virtual function". */
695 pascal_object_is_vtbl_ptr_type (struct type *type)
697 char *typename = type_name_no_tag (type);
699 return (typename != NULL
700 && (STREQ (typename, pascal_vtbl_ptr_name)));
703 /* Return truth value for the assertion that TYPE is of the type
704 "pointer to virtual function table". */
707 pascal_object_is_vtbl_member (struct type *type)
709 if (TYPE_CODE (type) == TYPE_CODE_PTR)
711 type = TYPE_TARGET_TYPE (type);
712 if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
714 type = TYPE_TARGET_TYPE (type);
715 if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */
716 || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */
718 /* Virtual functions tables are full of pointers
719 to virtual functions. */
720 return pascal_object_is_vtbl_ptr_type (type);
727 /* Mutually recursive subroutines of pascal_object_print_value and c_val_print to
728 print out a structure's fields: pascal_object_print_value_fields and pascal_object_print_value.
730 TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
731 same meanings as in pascal_object_print_value and c_val_print.
733 DONT_PRINT is an array of baseclass types that we
734 should not print, or zero if called from top level. */
737 pascal_object_print_value_fields (struct type *type, char *valaddr,
738 CORE_ADDR address, struct ui_file *stream,
739 int format, int recurse,
740 enum val_prettyprint pretty,
741 struct type **dont_print_vb,
742 int dont_print_statmem)
744 int i, len, n_baseclasses;
745 struct obstack tmp_obstack;
746 char *last_dont_print = obstack_next_free (&dont_print_statmem_obstack);
748 CHECK_TYPEDEF (type);
750 fprintf_filtered (stream, "{");
751 len = TYPE_NFIELDS (type);
752 n_baseclasses = TYPE_N_BASECLASSES (type);
754 /* Print out baseclasses such that we don't print
755 duplicates of virtual baseclasses. */
756 if (n_baseclasses > 0)
757 pascal_object_print_value (type, valaddr, address, stream,
758 format, recurse + 1, pretty, dont_print_vb);
760 if (!len && n_baseclasses == 1)
761 fprintf_filtered (stream, "<No data fields>");
764 extern int inspect_it;
767 if (dont_print_statmem == 0)
769 /* If we're at top level, carve out a completely fresh
770 chunk of the obstack and use that until this particular
771 invocation returns. */
772 tmp_obstack = dont_print_statmem_obstack;
773 obstack_finish (&dont_print_statmem_obstack);
776 for (i = n_baseclasses; i < len; i++)
778 /* If requested, skip printing of static fields. */
779 if (!pascal_static_field_print && TYPE_FIELD_STATIC (type, i))
782 fprintf_filtered (stream, ", ");
783 else if (n_baseclasses > 0)
787 fprintf_filtered (stream, "\n");
788 print_spaces_filtered (2 + 2 * recurse, stream);
789 fputs_filtered ("members of ", stream);
790 fputs_filtered (type_name_no_tag (type), stream);
791 fputs_filtered (": ", stream);
798 fprintf_filtered (stream, "\n");
799 print_spaces_filtered (2 + 2 * recurse, stream);
803 wrap_here (n_spaces (2 + 2 * recurse));
807 if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
808 fputs_filtered ("\"( ptr \"", stream);
810 fputs_filtered ("\"( nodef \"", stream);
811 if (TYPE_FIELD_STATIC (type, i))
812 fputs_filtered ("static ", stream);
813 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
815 DMGL_PARAMS | DMGL_ANSI);
816 fputs_filtered ("\" \"", stream);
817 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
819 DMGL_PARAMS | DMGL_ANSI);
820 fputs_filtered ("\") \"", stream);
824 annotate_field_begin (TYPE_FIELD_TYPE (type, i));
826 if (TYPE_FIELD_STATIC (type, i))
827 fputs_filtered ("static ", stream);
828 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
830 DMGL_PARAMS | DMGL_ANSI);
831 annotate_field_name_end ();
832 fputs_filtered (" = ", stream);
833 annotate_field_value ();
836 if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
840 /* Bitfields require special handling, especially due to byte
842 if (TYPE_FIELD_IGNORE (type, i))
844 fputs_filtered ("<optimized out or zero length>", stream);
848 v = value_from_longest (TYPE_FIELD_TYPE (type, i),
849 unpack_field_as_long (type, valaddr, i));
851 val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0, 0,
852 stream, format, 0, recurse + 1, pretty);
857 if (TYPE_FIELD_IGNORE (type, i))
859 fputs_filtered ("<optimized out or zero length>", stream);
861 else if (TYPE_FIELD_STATIC (type, i))
863 /* struct value *v = value_static_field (type, i); v4.17 specific */
865 v = value_from_longest (TYPE_FIELD_TYPE (type, i),
866 unpack_field_as_long (type, valaddr, i));
869 fputs_filtered ("<optimized out>", stream);
871 pascal_object_print_static_field (TYPE_FIELD_TYPE (type, i), v,
872 stream, format, recurse + 1,
877 /* val_print (TYPE_FIELD_TYPE (type, i),
878 valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
879 address + TYPE_FIELD_BITPOS (type, i) / 8, 0,
880 stream, format, 0, recurse + 1, pretty); */
881 val_print (TYPE_FIELD_TYPE (type, i),
882 valaddr, TYPE_FIELD_BITPOS (type, i) / 8,
883 address + TYPE_FIELD_BITPOS (type, i) / 8,
884 stream, format, 0, recurse + 1, pretty);
887 annotate_field_end ();
890 if (dont_print_statmem == 0)
892 /* Free the space used to deal with the printing
893 of the members from top level. */
894 obstack_free (&dont_print_statmem_obstack, last_dont_print);
895 dont_print_statmem_obstack = tmp_obstack;
900 fprintf_filtered (stream, "\n");
901 print_spaces_filtered (2 * recurse, stream);
904 fprintf_filtered (stream, "}");
907 /* Special val_print routine to avoid printing multiple copies of virtual
911 pascal_object_print_value (struct type *type, char *valaddr, CORE_ADDR address,
912 struct ui_file *stream, int format, int recurse,
913 enum val_prettyprint pretty,
914 struct type **dont_print_vb)
916 struct obstack tmp_obstack;
917 struct type **last_dont_print
918 = (struct type **) obstack_next_free (&dont_print_vb_obstack);
919 int i, n_baseclasses = TYPE_N_BASECLASSES (type);
921 if (dont_print_vb == 0)
923 /* If we're at top level, carve out a completely fresh
924 chunk of the obstack and use that until this particular
925 invocation returns. */
926 tmp_obstack = dont_print_vb_obstack;
927 /* Bump up the high-water mark. Now alpha is omega. */
928 obstack_finish (&dont_print_vb_obstack);
931 for (i = 0; i < n_baseclasses; i++)
934 struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
935 char *basename = TYPE_NAME (baseclass);
938 if (BASETYPE_VIA_VIRTUAL (type, i))
940 struct type **first_dont_print
941 = (struct type **) obstack_base (&dont_print_vb_obstack);
943 int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
947 if (baseclass == first_dont_print[j])
950 obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
953 boffset = baseclass_offset (type, i, valaddr, address);
957 fprintf_filtered (stream, "\n");
958 print_spaces_filtered (2 * recurse, stream);
960 fputs_filtered ("<", stream);
961 /* Not sure what the best notation is in the case where there is no
964 fputs_filtered (basename ? basename : "", stream);
965 fputs_filtered ("> = ", stream);
967 /* The virtual base class pointer might have been clobbered by the
968 user program. Make sure that it still points to a valid memory
971 if (boffset != -1 && (boffset < 0 || boffset >= TYPE_LENGTH (type)))
973 /* FIXME (alloc): not safe is baseclass is really really big. */
974 base_valaddr = (char *) alloca (TYPE_LENGTH (baseclass));
975 if (target_read_memory (address + boffset, base_valaddr,
976 TYPE_LENGTH (baseclass)) != 0)
980 base_valaddr = valaddr + boffset;
983 fprintf_filtered (stream, "<invalid address>");
985 pascal_object_print_value_fields (baseclass, base_valaddr, address + boffset,
986 stream, format, recurse, pretty,
987 (struct type **) obstack_base (&dont_print_vb_obstack),
989 fputs_filtered (", ", stream);
995 if (dont_print_vb == 0)
997 /* Free the space used to deal with the printing
998 of this type from top level. */
999 obstack_free (&dont_print_vb_obstack, last_dont_print);
1000 /* Reset watermark so that we can continue protecting
1001 ourselves from whatever we were protecting ourselves. */
1002 dont_print_vb_obstack = tmp_obstack;
1006 /* Print value of a static member.
1007 To avoid infinite recursion when printing a class that contains
1008 a static instance of the class, we keep the addresses of all printed
1009 static member classes in an obstack and refuse to print them more
1012 VAL contains the value to print, TYPE, STREAM, RECURSE, and PRETTY
1013 have the same meanings as in c_val_print. */
1016 pascal_object_print_static_field (struct type *type, struct value *val,
1017 struct ui_file *stream, int format,
1018 int recurse, enum val_prettyprint pretty)
1020 if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
1022 CORE_ADDR *first_dont_print;
1026 = (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack);
1027 i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack)
1032 if (VALUE_ADDRESS (val) == first_dont_print[i])
1034 fputs_filtered ("<same as static member of an already seen type>",
1040 obstack_grow (&dont_print_statmem_obstack, (char *) &VALUE_ADDRESS (val),
1041 sizeof (CORE_ADDR));
1043 CHECK_TYPEDEF (type);
1044 pascal_object_print_value_fields (type, VALUE_CONTENTS (val), VALUE_ADDRESS (val),
1045 stream, format, recurse, pretty, NULL, 1);
1048 val_print (type, VALUE_CONTENTS (val), 0, VALUE_ADDRESS (val),
1049 stream, format, 0, recurse, pretty);
1053 pascal_object_print_class_member (char *valaddr, struct type *domain,
1054 struct ui_file *stream, char *prefix)
1057 /* VAL is a byte offset into the structure type DOMAIN.
1058 Find the name of the field for that offset and
1062 register unsigned int i;
1063 unsigned len = TYPE_NFIELDS (domain);
1064 /* @@ Make VAL into bit offset */
1065 LONGEST val = unpack_long (builtin_type_int, valaddr) << 3;
1066 for (i = TYPE_N_BASECLASSES (domain); i < len; i++)
1068 int bitpos = TYPE_FIELD_BITPOS (domain, i);
1072 if (val < bitpos && i != 0)
1074 /* Somehow pointing into a field. */
1076 extra = (val - TYPE_FIELD_BITPOS (domain, i));
1087 fprintf_filtered (stream, prefix);
1088 name = type_name_no_tag (domain);
1090 fputs_filtered (name, stream);
1092 pascal_type_print_base (domain, stream, 0, 0);
1093 fprintf_filtered (stream, "::");
1094 fputs_filtered (TYPE_FIELD_NAME (domain, i), stream);
1096 fprintf_filtered (stream, " + %d bytes", extra);
1098 fprintf_filtered (stream, " (offset in bits)");
1101 fprintf_filtered (stream, "%ld", (long int) (val >> 3));
1106 _initialize_pascal_valprint (void)
1109 (add_set_cmd ("pascal_static-members", class_support, var_boolean,
1110 (char *) &pascal_static_field_print,
1111 "Set printing of pascal static members.",
1114 /* Turn on printing of static fields. */
1115 pascal_static_field_print = 1;