1 /* Support routines for manipulating internal types for GDB.
2 Copyright (C) 1992, 93, 94, 95, 96, 1998 Free Software Foundation, Inc.
3 Contributed by Cygnus Support, using pieces from other GDB modules.
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,
20 Boston, MA 02111-1307, USA. */
23 #include "gdb_string.h"
29 #include "expression.h"
34 #include "complaints.h"
38 /* These variables point to the objects
39 representing the predefined C data types. */
41 struct type *builtin_type_void;
42 struct type *builtin_type_char;
43 struct type *builtin_type_true_char;
44 struct type *builtin_type_short;
45 struct type *builtin_type_int;
46 struct type *builtin_type_long;
47 struct type *builtin_type_long_long;
48 struct type *builtin_type_signed_char;
49 struct type *builtin_type_unsigned_char;
50 struct type *builtin_type_unsigned_short;
51 struct type *builtin_type_unsigned_int;
52 struct type *builtin_type_unsigned_long;
53 struct type *builtin_type_unsigned_long_long;
54 struct type *builtin_type_float;
55 struct type *builtin_type_double;
56 struct type *builtin_type_long_double;
57 struct type *builtin_type_complex;
58 struct type *builtin_type_double_complex;
59 struct type *builtin_type_string;
60 struct type *builtin_type_int8;
61 struct type *builtin_type_uint8;
62 struct type *builtin_type_int16;
63 struct type *builtin_type_uint16;
64 struct type *builtin_type_int32;
65 struct type *builtin_type_uint32;
66 struct type *builtin_type_int64;
67 struct type *builtin_type_uint64;
68 struct type *builtin_type_bool;
69 struct type *builtin_type_v4sf;
70 struct type *builtin_type_v4si;
71 struct type *builtin_type_v8qi;
72 struct type *builtin_type_v4hi;
73 struct type *builtin_type_v2si;
74 struct type *builtin_type_ptr;
75 struct type *builtin_type_CORE_ADDR;
76 struct type *builtin_type_bfd_vma;
78 int opaque_type_resolution = 1;
79 int overload_debug = 0;
85 }; /* maximum extension is 128! FIXME */
87 static void add_name (struct extra *, char *);
88 static void add_mangled_type (struct extra *, struct type *);
90 static void cfront_mangle_name (struct type *, int, int);
92 static void print_bit_vector (B_TYPE *, int);
93 static void print_arg_types (struct type **, int);
94 static void dump_fn_fieldlists (struct type *, int);
95 static void print_cplus_stuff (struct type *, int);
96 static void virtual_base_list_aux (struct type *dclass);
99 /* Alloc a new type structure and fill it with some defaults. If
100 OBJFILE is non-NULL, then allocate the space for the type structure
101 in that objfile's type_obstack. */
104 alloc_type (struct objfile *objfile)
106 register struct type *type;
108 /* Alloc the structure and start off with all fields zeroed. */
112 type = (struct type *) xmalloc (sizeof (struct type));
116 type = (struct type *) obstack_alloc (&objfile->type_obstack,
117 sizeof (struct type));
118 OBJSTAT (objfile, n_types++);
120 memset ((char *) type, 0, sizeof (struct type));
122 /* Initialize the fields that might not be zero. */
124 TYPE_CODE (type) = TYPE_CODE_UNDEF;
125 TYPE_OBJFILE (type) = objfile;
126 TYPE_VPTR_FIELDNO (type) = -1;
127 TYPE_CV_TYPE (type) = type; /* chain back to itself */
132 /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points
133 to a pointer to memory where the pointer type should be stored.
134 If *TYPEPTR is zero, update it to point to the pointer type we return.
135 We allocate new memory if needed. */
138 make_pointer_type (struct type *type, struct type **typeptr)
140 register struct type *ntype; /* New type */
141 struct objfile *objfile;
143 ntype = TYPE_POINTER_TYPE (type);
148 return ntype; /* Don't care about alloc, and have new type. */
149 else if (*typeptr == 0)
151 *typeptr = ntype; /* Tracking alloc, and we have new type. */
156 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
158 ntype = alloc_type (TYPE_OBJFILE (type));
163 /* We have storage, but need to reset it. */
166 objfile = TYPE_OBJFILE (ntype);
167 memset ((char *) ntype, 0, sizeof (struct type));
168 TYPE_OBJFILE (ntype) = objfile;
171 TYPE_TARGET_TYPE (ntype) = type;
172 TYPE_POINTER_TYPE (type) = ntype;
174 /* FIXME! Assume the machine has only one representation for pointers! */
176 TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT;
177 TYPE_CODE (ntype) = TYPE_CODE_PTR;
179 /* Mark pointers as unsigned. The target converts between pointers
180 and addresses (CORE_ADDRs) using POINTER_TO_ADDRESS() and
181 ADDRESS_TO_POINTER(). */
182 TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED;
184 if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */
185 TYPE_POINTER_TYPE (type) = ntype;
190 /* Given a type TYPE, return a type of pointers to that type.
191 May need to construct such a type if this is the first use. */
194 lookup_pointer_type (struct type *type)
196 return make_pointer_type (type, (struct type **) 0);
199 /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points
200 to a pointer to memory where the reference type should be stored.
201 If *TYPEPTR is zero, update it to point to the reference type we return.
202 We allocate new memory if needed. */
205 make_reference_type (struct type *type, struct type **typeptr)
207 register struct type *ntype; /* New type */
208 struct objfile *objfile;
210 ntype = TYPE_REFERENCE_TYPE (type);
215 return ntype; /* Don't care about alloc, and have new type. */
216 else if (*typeptr == 0)
218 *typeptr = ntype; /* Tracking alloc, and we have new type. */
223 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
225 ntype = alloc_type (TYPE_OBJFILE (type));
230 /* We have storage, but need to reset it. */
233 objfile = TYPE_OBJFILE (ntype);
234 memset ((char *) ntype, 0, sizeof (struct type));
235 TYPE_OBJFILE (ntype) = objfile;
238 TYPE_TARGET_TYPE (ntype) = type;
239 TYPE_REFERENCE_TYPE (type) = ntype;
241 /* FIXME! Assume the machine has only one representation for references,
242 and that it matches the (only) representation for pointers! */
244 TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT;
245 TYPE_CODE (ntype) = TYPE_CODE_REF;
247 if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */
248 TYPE_REFERENCE_TYPE (type) = ntype;
253 /* Same as above, but caller doesn't care about memory allocation details. */
256 lookup_reference_type (struct type *type)
258 return make_reference_type (type, (struct type **) 0);
261 /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points
262 to a pointer to memory where the function type should be stored.
263 If *TYPEPTR is zero, update it to point to the function type we return.
264 We allocate new memory if needed. */
267 make_function_type (struct type *type, struct type **typeptr)
269 register struct type *ntype; /* New type */
270 struct objfile *objfile;
272 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
274 ntype = alloc_type (TYPE_OBJFILE (type));
279 /* We have storage, but need to reset it. */
282 objfile = TYPE_OBJFILE (ntype);
283 memset ((char *) ntype, 0, sizeof (struct type));
284 TYPE_OBJFILE (ntype) = objfile;
287 TYPE_TARGET_TYPE (ntype) = type;
289 TYPE_LENGTH (ntype) = 1;
290 TYPE_CODE (ntype) = TYPE_CODE_FUNC;
296 /* Given a type TYPE, return a type of functions that return that type.
297 May need to construct such a type if this is the first use. */
300 lookup_function_type (struct type *type)
302 return make_function_type (type, (struct type **) 0);
306 /* Make a "c-v" variant of a type -- a type that is identical to the
307 one supplied except that it may have const or volatile attributes
308 CNST is a flag for setting the const attribute
309 VOLTL is a flag for setting the volatile attribute
310 TYPE is the base type whose variant we are creating.
311 TYPEPTR, if nonzero, points
312 to a pointer to memory where the reference type should be stored.
313 If *TYPEPTR is zero, update it to point to the reference type we return.
314 We allocate new memory if needed. */
317 make_cv_type (int cnst, int voltl, struct type *type, struct type **typeptr)
319 register struct type *ntype; /* New type */
320 register struct type *tmp_type = type; /* tmp type */
321 struct objfile *objfile;
323 ntype = TYPE_CV_TYPE (type);
325 while (ntype != type)
327 if ((TYPE_CONST (ntype) == cnst) &&
328 (TYPE_VOLATILE (ntype) == voltl))
332 else if (*typeptr == 0)
334 *typeptr = ntype; /* Tracking alloc, and we have new type. */
339 ntype = TYPE_CV_TYPE (ntype);
342 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
344 ntype = alloc_type (TYPE_OBJFILE (type));
349 /* We have storage, but need to reset it. */
352 objfile = TYPE_OBJFILE (ntype);
353 /* memset ((char *) ntype, 0, sizeof (struct type)); */
354 TYPE_OBJFILE (ntype) = objfile;
357 /* Copy original type */
358 memcpy ((char *) ntype, (char *) type, sizeof (struct type));
359 /* But zero out fields that shouldn't be copied */
360 TYPE_POINTER_TYPE (ntype) = (struct type *) 0; /* Need new pointer kind */
361 TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; /* Need new referene kind */
362 /* Note: TYPE_TARGET_TYPE can be left as is */
364 /* Set flags appropriately */
366 TYPE_FLAGS (ntype) |= TYPE_FLAG_CONST;
368 TYPE_FLAGS (ntype) &= ~TYPE_FLAG_CONST;
371 TYPE_FLAGS (ntype) |= TYPE_FLAG_VOLATILE;
373 TYPE_FLAGS (ntype) &= ~TYPE_FLAG_VOLATILE;
375 /* Fix the chain of cv variants */
376 TYPE_CV_TYPE (ntype) = type;
377 TYPE_CV_TYPE (tmp_type) = ntype;
385 /* Implement direct support for MEMBER_TYPE in GNU C++.
386 May need to construct such a type if this is the first use.
387 The TYPE is the type of the member. The DOMAIN is the type
388 of the aggregate that the member belongs to. */
391 lookup_member_type (struct type *type, struct type *domain)
393 register struct type *mtype;
395 mtype = alloc_type (TYPE_OBJFILE (type));
396 smash_to_member_type (mtype, domain, type);
400 /* Allocate a stub method whose return type is TYPE.
401 This apparently happens for speed of symbol reading, since parsing
402 out the arguments to the method is cpu-intensive, the way we are doing
403 it. So, we will fill in arguments later.
404 This always returns a fresh type. */
407 allocate_stub_method (struct type *type)
411 mtype = alloc_type (TYPE_OBJFILE (type));
412 TYPE_TARGET_TYPE (mtype) = type;
413 /* _DOMAIN_TYPE (mtype) = unknown yet */
414 /* _ARG_TYPES (mtype) = unknown yet */
415 TYPE_FLAGS (mtype) = TYPE_FLAG_STUB;
416 TYPE_CODE (mtype) = TYPE_CODE_METHOD;
417 TYPE_LENGTH (mtype) = 1;
421 /* Create a range type using either a blank type supplied in RESULT_TYPE,
422 or creating a new type, inheriting the objfile from INDEX_TYPE.
424 Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to
425 HIGH_BOUND, inclusive.
427 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
428 sure it is TYPE_CODE_UNDEF before we bash it into a range type? */
431 create_range_type (struct type *result_type, struct type *index_type,
432 int low_bound, int high_bound)
434 if (result_type == NULL)
436 result_type = alloc_type (TYPE_OBJFILE (index_type));
438 TYPE_CODE (result_type) = TYPE_CODE_RANGE;
439 TYPE_TARGET_TYPE (result_type) = index_type;
440 if (TYPE_FLAGS (index_type) & TYPE_FLAG_STUB)
441 TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB;
443 TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type));
444 TYPE_NFIELDS (result_type) = 2;
445 TYPE_FIELDS (result_type) = (struct field *)
446 TYPE_ALLOC (result_type, 2 * sizeof (struct field));
447 memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field));
448 TYPE_FIELD_BITPOS (result_type, 0) = low_bound;
449 TYPE_FIELD_BITPOS (result_type, 1) = high_bound;
450 TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */
451 TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */
454 TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED;
456 return (result_type);
459 /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE.
460 Return 1 of type is a range type, 0 if it is discrete (and bounds
461 will fit in LONGEST), or -1 otherwise. */
464 get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp)
466 CHECK_TYPEDEF (type);
467 switch (TYPE_CODE (type))
469 case TYPE_CODE_RANGE:
470 *lowp = TYPE_LOW_BOUND (type);
471 *highp = TYPE_HIGH_BOUND (type);
474 if (TYPE_NFIELDS (type) > 0)
476 /* The enums may not be sorted by value, so search all
480 *lowp = *highp = TYPE_FIELD_BITPOS (type, 0);
481 for (i = 0; i < TYPE_NFIELDS (type); i++)
483 if (TYPE_FIELD_BITPOS (type, i) < *lowp)
484 *lowp = TYPE_FIELD_BITPOS (type, i);
485 if (TYPE_FIELD_BITPOS (type, i) > *highp)
486 *highp = TYPE_FIELD_BITPOS (type, i);
489 /* Set unsigned indicator if warranted. */
492 TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED;
506 if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */
508 if (!TYPE_UNSIGNED (type))
510 *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1));
514 /* ... fall through for unsigned ints ... */
517 /* This round-about calculation is to avoid shifting by
518 TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work
519 if TYPE_LENGTH (type) == sizeof (LONGEST). */
520 *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1);
521 *highp = (*highp - 1) | *highp;
528 /* Create an array type using either a blank type supplied in RESULT_TYPE,
529 or creating a new type, inheriting the objfile from RANGE_TYPE.
531 Elements will be of type ELEMENT_TYPE, the indices will be of type
534 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
535 sure it is TYPE_CODE_UNDEF before we bash it into an array type? */
538 create_array_type (struct type *result_type, struct type *element_type,
539 struct type *range_type)
541 LONGEST low_bound, high_bound;
543 if (result_type == NULL)
545 result_type = alloc_type (TYPE_OBJFILE (range_type));
547 TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
548 TYPE_TARGET_TYPE (result_type) = element_type;
549 if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
550 low_bound = high_bound = 0;
551 CHECK_TYPEDEF (element_type);
552 TYPE_LENGTH (result_type) =
553 TYPE_LENGTH (element_type) * (high_bound - low_bound + 1);
554 TYPE_NFIELDS (result_type) = 1;
555 TYPE_FIELDS (result_type) =
556 (struct field *) TYPE_ALLOC (result_type, sizeof (struct field));
557 memset (TYPE_FIELDS (result_type), 0, sizeof (struct field));
558 TYPE_FIELD_TYPE (result_type, 0) = range_type;
559 TYPE_VPTR_FIELDNO (result_type) = -1;
561 /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */
562 if (TYPE_LENGTH (result_type) == 0)
563 TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB;
565 return (result_type);
568 /* Create a string type using either a blank type supplied in RESULT_TYPE,
569 or creating a new type. String types are similar enough to array of
570 char types that we can use create_array_type to build the basic type
571 and then bash it into a string type.
573 For fixed length strings, the range type contains 0 as the lower
574 bound and the length of the string minus one as the upper bound.
576 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
577 sure it is TYPE_CODE_UNDEF before we bash it into a string type? */
580 create_string_type (struct type *result_type, struct type *range_type)
582 result_type = create_array_type (result_type,
583 *current_language->string_char_type,
585 TYPE_CODE (result_type) = TYPE_CODE_STRING;
586 return (result_type);
590 create_set_type (struct type *result_type, struct type *domain_type)
592 LONGEST low_bound, high_bound, bit_length;
593 if (result_type == NULL)
595 result_type = alloc_type (TYPE_OBJFILE (domain_type));
597 TYPE_CODE (result_type) = TYPE_CODE_SET;
598 TYPE_NFIELDS (result_type) = 1;
599 TYPE_FIELDS (result_type) = (struct field *)
600 TYPE_ALLOC (result_type, 1 * sizeof (struct field));
601 memset (TYPE_FIELDS (result_type), 0, sizeof (struct field));
603 if (!(TYPE_FLAGS (domain_type) & TYPE_FLAG_STUB))
605 if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0)
606 low_bound = high_bound = 0;
607 bit_length = high_bound - low_bound + 1;
608 TYPE_LENGTH (result_type)
609 = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT;
611 TYPE_FIELD_TYPE (result_type, 0) = domain_type;
614 TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED;
616 return (result_type);
620 /* Construct and return a type of the form:
621 struct NAME { ELT_TYPE ELT_NAME[N]; }
622 We use these types for SIMD registers. For example, the type of
623 the SSE registers on the late x86-family processors is:
624 struct __builtin_v4sf { float f[4]; }
625 built by the function call:
626 init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4)
627 The type returned is a permanent type, allocated using malloc; it
628 doesn't live in any objfile's obstack. */
630 init_simd_type (char *name,
631 struct type *elt_type,
638 /* Build the field structure. */
639 f = xmalloc (sizeof (*f));
640 memset (f, 0, sizeof (*f));
642 f->type = create_array_type (0, elt_type,
643 create_range_type (0, builtin_type_int,
647 /* Build a struct type with that field. */
648 t = init_type (TYPE_CODE_STRUCT, n * TYPE_LENGTH (elt_type), 0, 0, 0);
657 /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE.
658 A MEMBER is a wierd thing -- it amounts to a typed offset into
659 a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't
660 include the offset (that's the value of the MEMBER itself), but does
661 include the structure type into which it points (for some reason).
663 When "smashing" the type, we preserve the objfile that the
664 old type pointed to, since we aren't changing where the type is actually
668 smash_to_member_type (struct type *type, struct type *domain,
669 struct type *to_type)
671 struct objfile *objfile;
673 objfile = TYPE_OBJFILE (type);
675 memset ((char *) type, 0, sizeof (struct type));
676 TYPE_OBJFILE (type) = objfile;
677 TYPE_TARGET_TYPE (type) = to_type;
678 TYPE_DOMAIN_TYPE (type) = domain;
679 TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
680 TYPE_CODE (type) = TYPE_CODE_MEMBER;
683 /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
684 METHOD just means `function that gets an extra "this" argument'.
686 When "smashing" the type, we preserve the objfile that the
687 old type pointed to, since we aren't changing where the type is actually
691 smash_to_method_type (struct type *type, struct type *domain,
692 struct type *to_type, struct type **args)
694 struct objfile *objfile;
696 objfile = TYPE_OBJFILE (type);
698 memset ((char *) type, 0, sizeof (struct type));
699 TYPE_OBJFILE (type) = objfile;
700 TYPE_TARGET_TYPE (type) = to_type;
701 TYPE_DOMAIN_TYPE (type) = domain;
702 TYPE_ARG_TYPES (type) = args;
703 TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
704 TYPE_CODE (type) = TYPE_CODE_METHOD;
707 /* Return a typename for a struct/union/enum type without "struct ",
708 "union ", or "enum ". If the type has a NULL name, return NULL. */
711 type_name_no_tag (register const struct type *type)
713 if (TYPE_TAG_NAME (type) != NULL)
714 return TYPE_TAG_NAME (type);
716 /* Is there code which expects this to return the name if there is no
717 tag name? My guess is that this is mainly used for C++ in cases where
718 the two will always be the same. */
719 return TYPE_NAME (type);
722 /* Lookup a primitive type named NAME.
723 Return zero if NAME is not a primitive type. */
726 lookup_primitive_typename (char *name)
728 struct type **const *p;
730 for (p = current_language->la_builtin_type_vector; *p != NULL; p++)
732 if (STREQ ((**p)->name, name))
740 /* Lookup a typedef or primitive type named NAME,
741 visible in lexical block BLOCK.
742 If NOERR is nonzero, return zero if NAME is not suitably defined. */
745 lookup_typename (char *name, struct block *block, int noerr)
747 register struct symbol *sym;
748 register struct type *tmp;
750 sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL);
751 if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF)
753 tmp = lookup_primitive_typename (name);
758 else if (!tmp && noerr)
764 error ("No type named %s.", name);
767 return (SYMBOL_TYPE (sym));
771 lookup_unsigned_typename (char *name)
773 char *uns = alloca (strlen (name) + 10);
775 strcpy (uns, "unsigned ");
776 strcpy (uns + 9, name);
777 return (lookup_typename (uns, (struct block *) NULL, 0));
781 lookup_signed_typename (char *name)
784 char *uns = alloca (strlen (name) + 8);
786 strcpy (uns, "signed ");
787 strcpy (uns + 7, name);
788 t = lookup_typename (uns, (struct block *) NULL, 1);
789 /* If we don't find "signed FOO" just try again with plain "FOO". */
792 return lookup_typename (name, (struct block *) NULL, 0);
795 /* Lookup a structure type named "struct NAME",
796 visible in lexical block BLOCK. */
799 lookup_struct (char *name, struct block *block)
801 register struct symbol *sym;
803 sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0,
804 (struct symtab **) NULL);
808 error ("No struct type named %s.", name);
810 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT)
812 error ("This context has class, union or enum %s, not a struct.", name);
814 return (SYMBOL_TYPE (sym));
817 /* Lookup a union type named "union NAME",
818 visible in lexical block BLOCK. */
821 lookup_union (char *name, struct block *block)
823 register struct symbol *sym;
826 sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0,
827 (struct symtab **) NULL);
830 error ("No union type named %s.", name);
832 t = SYMBOL_TYPE (sym);
834 if (TYPE_CODE (t) == TYPE_CODE_UNION)
837 /* C++ unions may come out with TYPE_CODE_CLASS, but we look at
838 * a further "declared_type" field to discover it is really a union.
840 if (HAVE_CPLUS_STRUCT (t))
841 if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION)
844 /* If we get here, it's not a union */
845 error ("This context has class, struct or enum %s, not a union.", name);
849 /* Lookup an enum type named "enum NAME",
850 visible in lexical block BLOCK. */
853 lookup_enum (char *name, struct block *block)
855 register struct symbol *sym;
857 sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0,
858 (struct symtab **) NULL);
861 error ("No enum type named %s.", name);
863 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM)
865 error ("This context has class, struct or union %s, not an enum.", name);
867 return (SYMBOL_TYPE (sym));
870 /* Lookup a template type named "template NAME<TYPE>",
871 visible in lexical block BLOCK. */
874 lookup_template_type (char *name, struct type *type, struct block *block)
877 char *nam = (char *) alloca (strlen (name) + strlen (type->name) + 4);
880 strcat (nam, type->name);
881 strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */
883 sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **) NULL);
887 error ("No template type named %s.", name);
889 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT)
891 error ("This context has class, union or enum %s, not a struct.", name);
893 return (SYMBOL_TYPE (sym));
896 /* Given a type TYPE, lookup the type of the component of type named NAME.
898 TYPE can be either a struct or union, or a pointer or reference to a struct or
899 union. If it is a pointer or reference, its target type is automatically used.
900 Thus '.' and '->' are interchangable, as specified for the definitions of the
901 expression element types STRUCTOP_STRUCT and STRUCTOP_PTR.
903 If NOERR is nonzero, return zero if NAME is not suitably defined.
904 If NAME is the name of a baseclass type, return that type. */
907 lookup_struct_elt_type (struct type *type, char *name, int noerr)
913 CHECK_TYPEDEF (type);
914 if (TYPE_CODE (type) != TYPE_CODE_PTR
915 && TYPE_CODE (type) != TYPE_CODE_REF)
917 type = TYPE_TARGET_TYPE (type);
920 if (TYPE_CODE (type) != TYPE_CODE_STRUCT &&
921 TYPE_CODE (type) != TYPE_CODE_UNION)
923 target_terminal_ours ();
924 gdb_flush (gdb_stdout);
925 fprintf_unfiltered (gdb_stderr, "Type ");
926 type_print (type, "", gdb_stderr, -1);
927 error (" is not a structure or union type.");
931 /* FIXME: This change put in by Michael seems incorrect for the case where
932 the structure tag name is the same as the member name. I.E. when doing
933 "ptype bell->bar" for "struct foo { int bar; int foo; } bell;"
938 typename = type_name_no_tag (type);
939 if (typename != NULL && STREQ (typename, name))
944 for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--)
946 char *t_field_name = TYPE_FIELD_NAME (type, i);
948 if (t_field_name && (strcmp_iw (t_field_name, name) == 0))
950 return TYPE_FIELD_TYPE (type, i);
954 /* OK, it's not in this class. Recursively check the baseclasses. */
955 for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
959 t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr);
971 target_terminal_ours ();
972 gdb_flush (gdb_stdout);
973 fprintf_unfiltered (gdb_stderr, "Type ");
974 type_print (type, "", gdb_stderr, -1);
975 fprintf_unfiltered (gdb_stderr, " has no component named ");
976 fputs_filtered (name, gdb_stderr);
978 return (struct type *) -1; /* For lint */
981 /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE
982 valid. Callers should be aware that in some cases (for example,
983 the type or one of its baseclasses is a stub type and we are
984 debugging a .o file), this function will not be able to find the virtual
985 function table pointer, and vptr_fieldno will remain -1 and vptr_basetype
989 fill_in_vptr_fieldno (struct type *type)
991 CHECK_TYPEDEF (type);
993 if (TYPE_VPTR_FIELDNO (type) < 0)
997 /* We must start at zero in case the first (and only) baseclass is
998 virtual (and hence we cannot share the table pointer). */
999 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
1001 fill_in_vptr_fieldno (TYPE_BASECLASS (type, i));
1002 if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0)
1004 TYPE_VPTR_FIELDNO (type)
1005 = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i));
1006 TYPE_VPTR_BASETYPE (type)
1007 = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i));
1014 /* Find the method and field indices for the destructor in class type T.
1015 Return 1 if the destructor was found, otherwise, return 0. */
1018 get_destructor_fn_field (struct type *t, int *method_indexp, int *field_indexp)
1022 for (i = 0; i < TYPE_NFN_FIELDS (t); i++)
1025 struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
1027 for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++)
1029 if (DESTRUCTOR_PREFIX_P (TYPE_FN_FIELD_PHYSNAME (f, j)))
1040 /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989.
1042 If this is a stubbed struct (i.e. declared as struct foo *), see if
1043 we can find a full definition in some other file. If so, copy this
1044 definition, so we can use it in future. There used to be a comment (but
1045 not any code) that if we don't find a full definition, we'd set a flag
1046 so we don't spend time in the future checking the same type. That would
1047 be a mistake, though--we might load in more symbols which contain a
1048 full definition for the type.
1050 This used to be coded as a macro, but I don't think it is called
1051 often enough to merit such treatment. */
1053 struct complaint stub_noname_complaint =
1054 {"stub type has NULL name", 0, 0};
1057 check_typedef (register struct type *type)
1059 struct type *orig_type = type;
1060 while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
1062 if (!TYPE_TARGET_TYPE (type))
1067 /* It is dangerous to call lookup_symbol if we are currently
1068 reading a symtab. Infinite recursion is one danger. */
1069 if (currently_reading_symtab)
1072 name = type_name_no_tag (type);
1073 /* FIXME: shouldn't we separately check the TYPE_NAME and the
1074 TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE
1075 as appropriate? (this code was written before TYPE_NAME and
1076 TYPE_TAG_NAME were separate). */
1079 complain (&stub_noname_complaint);
1082 sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0,
1083 (struct symtab **) NULL);
1085 TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym);
1087 TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */
1089 type = TYPE_TARGET_TYPE (type);
1092 /* If this is a struct/class/union with no fields, then check whether a
1093 full definition exists somewhere else. This is for systems where a
1094 type definition with no fields is issued for such types, instead of
1095 identifying them as stub types in the first place */
1097 if (TYPE_IS_OPAQUE (type) && opaque_type_resolution && !currently_reading_symtab)
1099 char *name = type_name_no_tag (type);
1100 struct type *newtype;
1103 complain (&stub_noname_complaint);
1106 newtype = lookup_transparent_type (name);
1109 memcpy ((char *) type, (char *) newtype, sizeof (struct type));
1112 /* Otherwise, rely on the stub flag being set for opaque/stubbed types */
1113 else if ((TYPE_FLAGS (type) & TYPE_FLAG_STUB) && !currently_reading_symtab)
1115 char *name = type_name_no_tag (type);
1116 /* FIXME: shouldn't we separately check the TYPE_NAME and the
1117 TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE
1118 as appropriate? (this code was written before TYPE_NAME and
1119 TYPE_TAG_NAME were separate). */
1123 complain (&stub_noname_complaint);
1126 sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, (struct symtab **) NULL);
1129 memcpy ((char *) type, (char *) SYMBOL_TYPE (sym), sizeof (struct type));
1133 if (TYPE_FLAGS (type) & TYPE_FLAG_TARGET_STUB)
1135 struct type *range_type;
1136 struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));
1138 if (TYPE_FLAGS (target_type) & (TYPE_FLAG_STUB | TYPE_FLAG_TARGET_STUB))
1141 else if (TYPE_CODE (type) == TYPE_CODE_ARRAY
1142 && TYPE_NFIELDS (type) == 1
1143 && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0))
1144 == TYPE_CODE_RANGE))
1146 /* Now recompute the length of the array type, based on its
1147 number of elements and the target type's length. */
1148 TYPE_LENGTH (type) =
1149 ((TYPE_FIELD_BITPOS (range_type, 1)
1150 - TYPE_FIELD_BITPOS (range_type, 0)
1152 * TYPE_LENGTH (target_type));
1153 TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB;
1155 else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
1157 TYPE_LENGTH (type) = TYPE_LENGTH (target_type);
1158 TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB;
1161 /* Cache TYPE_LENGTH for future use. */
1162 TYPE_LENGTH (orig_type) = TYPE_LENGTH (type);
1166 /* New code added to support parsing of Cfront stabs strings */
1168 #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; }
1169 #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; }
1172 add_name (struct extra *pextras, char *n)
1176 if ((nlen = (n ? strlen (n) : 0)) == 0)
1178 sprintf (pextras->str + pextras->len, "%d%s", nlen, n);
1179 pextras->len = strlen (pextras->str);
1183 add_mangled_type (struct extra *pextras, struct type *t)
1185 enum type_code tcode;
1189 tcode = TYPE_CODE (t);
1190 tlen = TYPE_LENGTH (t);
1191 tflags = TYPE_FLAGS (t);
1192 tname = TYPE_NAME (t);
1193 /* args of "..." seem to get mangled as "e" */
1211 if ((pname = strrchr (tname, 'l'), pname) && !strcmp (pname, "long"))
1224 static struct complaint msg =
1225 {"Bad int type code length x%x\n", 0, 0};
1227 complain (&msg, tlen);
1246 static struct complaint msg =
1247 {"Bad float type code length x%x\n", 0, 0};
1248 complain (&msg, tlen);
1254 /* followed by what it's a ref to */
1258 /* followed by what it's a ptr to */
1260 case TYPE_CODE_TYPEDEF:
1262 static struct complaint msg =
1263 {"Typedefs in overloaded functions not yet supported\n", 0, 0};
1266 /* followed by type bytes & name */
1268 case TYPE_CODE_FUNC:
1270 /* followed by func's arg '_' & ret types */
1272 case TYPE_CODE_VOID:
1275 case TYPE_CODE_METHOD:
1277 /* followed by name of class and func's arg '_' & ret types */
1278 add_name (pextras, tname);
1279 ADD_EXTRA ('F'); /* then mangle function */
1281 case TYPE_CODE_STRUCT: /* C struct */
1282 case TYPE_CODE_UNION: /* C union */
1283 case TYPE_CODE_ENUM: /* Enumeration type */
1284 /* followed by name of type */
1285 add_name (pextras, tname);
1288 /* errors possible types/not supported */
1289 case TYPE_CODE_CHAR:
1290 case TYPE_CODE_ARRAY: /* Array type */
1291 case TYPE_CODE_MEMBER: /* Member type */
1292 case TYPE_CODE_BOOL:
1293 case TYPE_CODE_COMPLEX: /* Complex float */
1294 case TYPE_CODE_UNDEF:
1295 case TYPE_CODE_SET: /* Pascal sets */
1296 case TYPE_CODE_RANGE:
1297 case TYPE_CODE_STRING:
1298 case TYPE_CODE_BITSTRING:
1299 case TYPE_CODE_ERROR:
1302 static struct complaint msg =
1303 {"Unknown type code x%x\n", 0, 0};
1304 complain (&msg, tcode);
1308 add_mangled_type (pextras, t->target_type);
1313 cfront_mangle_name (struct type *type, int i, int j)
1316 char *mangled_name = gdb_mangle_name (type, i, j);
1318 f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */
1320 /* kludge to support cfront methods - gdb expects to find "F" for
1321 ARM_mangled names, so when we mangle, we have to add it here */
1325 char *arm_mangled_name;
1326 struct fn_field *method = &f[j];
1327 char *field_name = TYPE_FN_FIELDLIST_NAME (type, i);
1328 char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
1329 char *newname = type_name_no_tag (type);
1331 struct type *ftype = TYPE_FN_FIELD_TYPE (f, j);
1332 int nargs = TYPE_NFIELDS (ftype); /* number of args */
1333 struct extra extras, *pextras = &extras;
1336 if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */
1339 /* add args here! */
1340 if (nargs <= 1) /* no args besides this */
1344 for (k = 1; k < nargs; k++)
1347 t = TYPE_FIELD_TYPE (ftype, k);
1348 add_mangled_type (pextras, t);
1352 printf ("add_mangled_type: %s\n", extras.str); /* FIXME */
1353 arm_mangled_name = malloc (strlen (mangled_name) + extras.len);
1354 sprintf (arm_mangled_name, "%s%s", mangled_name, extras.str);
1355 free (mangled_name);
1356 mangled_name = arm_mangled_name;
1362 /* End of new code added to support parsing of Cfront stabs strings */
1364 /* Parse a type expression in the string [P..P+LENGTH). If an error occurs,
1365 silently return builtin_type_void. */
1368 safe_parse_type (char *p, int length)
1370 struct ui_file *saved_gdb_stderr;
1373 /* Suppress error messages. */
1374 saved_gdb_stderr = gdb_stderr;
1375 gdb_stderr = ui_file_new ();
1377 /* Call parse_and_eval_type() without fear of longjmp()s. */
1378 if (!gdb_parse_and_eval_type (p, length, &type))
1379 type = builtin_type_void;
1381 /* Stop suppressing error messages. */
1382 ui_file_delete (gdb_stderr);
1383 gdb_stderr = saved_gdb_stderr;
1388 /* Ugly hack to convert method stubs into method types.
1390 He ain't kiddin'. This demangles the name of the method into a string
1391 including argument types, parses out each argument type, generates
1392 a string casting a zero to that type, evaluates the string, and stuffs
1393 the resulting type into an argtype vector!!! Then it knows the type
1394 of the whole function (including argument types for overloading),
1395 which info used to be in the stab's but was removed to hack back
1396 the space required for them. */
1399 check_stub_method (struct type *type, int method_id, int signature_id)
1402 char *mangled_name = gdb_mangle_name (type, method_id, signature_id);
1403 char *demangled_name = cplus_demangle (mangled_name,
1404 DMGL_PARAMS | DMGL_ANSI);
1405 char *argtypetext, *p;
1406 int depth = 0, argcount = 1;
1407 struct type **argtypes;
1410 /* Make sure we got back a function string that we can use. */
1412 p = strchr (demangled_name, '(');
1414 if (demangled_name == NULL || p == NULL)
1415 error ("Internal: Cannot demangle mangled name `%s'.", mangled_name);
1417 /* Now, read in the parameters that define this type. */
1422 if (*p == '(' || *p == '<')
1426 else if (*p == ')' || *p == '>')
1430 else if (*p == ',' && depth == 0)
1438 /* We need two more slots: one for the THIS pointer, and one for the
1439 NULL [...] or void [end of arglist]. */
1441 argtypes = (struct type **)
1442 TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *));
1444 /* FIXME: This is wrong for static member functions. */
1445 argtypes[0] = lookup_pointer_type (type);
1448 if (*p != ')') /* () means no args, skip while */
1453 if (depth <= 0 && (*p == ',' || *p == ')'))
1455 /* Avoid parsing of ellipsis, they will be handled below. */
1456 if (strncmp (argtypetext, "...", p - argtypetext) != 0)
1458 argtypes[argcount] =
1459 safe_parse_type (argtypetext, p - argtypetext);
1462 argtypetext = p + 1;
1465 if (*p == '(' || *p == '<')
1469 else if (*p == ')' || *p == '>')
1478 if (p[-2] != '.') /* Not '...' */
1480 argtypes[argcount] = builtin_type_void; /* List terminator */
1484 argtypes[argcount] = NULL; /* Ellist terminator */
1487 free (demangled_name);
1489 f = TYPE_FN_FIELDLIST1 (type, method_id);
1491 TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name;
1493 /* Now update the old "stub" type into a real type. */
1494 mtype = TYPE_FN_FIELD_TYPE (f, signature_id);
1495 TYPE_DOMAIN_TYPE (mtype) = type;
1496 TYPE_ARG_TYPES (mtype) = argtypes;
1497 TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB;
1498 TYPE_FN_FIELD_STUB (f, signature_id) = 0;
1501 const struct cplus_struct_type cplus_struct_default;
1504 allocate_cplus_struct_type (struct type *type)
1506 if (!HAVE_CPLUS_STRUCT (type))
1508 TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *)
1509 TYPE_ALLOC (type, sizeof (struct cplus_struct_type));
1510 *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default;
1514 /* Helper function to initialize the standard scalar types.
1516 If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy
1517 of the string pointed to by name in the type_obstack for that objfile,
1518 and initialize the type name to that copy. There are places (mipsread.c
1519 in particular, where init_type is called with a NULL value for NAME). */
1522 init_type (enum type_code code, int length, int flags, char *name,
1523 struct objfile *objfile)
1525 register struct type *type;
1527 type = alloc_type (objfile);
1528 TYPE_CODE (type) = code;
1529 TYPE_LENGTH (type) = length;
1530 TYPE_FLAGS (type) |= flags;
1531 if ((name != NULL) && (objfile != NULL))
1534 obsavestring (name, strlen (name), &objfile->type_obstack);
1538 TYPE_NAME (type) = name;
1543 if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION)
1545 INIT_CPLUS_SPECIFIC (type);
1550 /* Look up a fundamental type for the specified objfile.
1551 May need to construct such a type if this is the first use.
1553 Some object file formats (ELF, COFF, etc) do not define fundamental
1554 types such as "int" or "double". Others (stabs for example), do
1555 define fundamental types.
1557 For the formats which don't provide fundamental types, gdb can create
1558 such types, using defaults reasonable for the current language and
1559 the current target machine.
1561 NOTE: This routine is obsolescent. Each debugging format reader
1562 should manage it's own fundamental types, either creating them from
1563 suitable defaults or reading them from the debugging information,
1564 whichever is appropriate. The DWARF reader has already been
1565 fixed to do this. Once the other readers are fixed, this routine
1566 will go away. Also note that fundamental types should be managed
1567 on a compilation unit basis in a multi-language environment, not
1568 on a linkage unit basis as is done here. */
1572 lookup_fundamental_type (struct objfile *objfile, int typeid)
1574 register struct type **typep;
1575 register int nbytes;
1577 if (typeid < 0 || typeid >= FT_NUM_MEMBERS)
1579 error ("internal error - invalid fundamental type id %d", typeid);
1582 /* If this is the first time we need a fundamental type for this objfile
1583 then we need to initialize the vector of type pointers. */
1585 if (objfile->fundamental_types == NULL)
1587 nbytes = FT_NUM_MEMBERS * sizeof (struct type *);
1588 objfile->fundamental_types = (struct type **)
1589 obstack_alloc (&objfile->type_obstack, nbytes);
1590 memset ((char *) objfile->fundamental_types, 0, nbytes);
1591 OBJSTAT (objfile, n_types += FT_NUM_MEMBERS);
1594 /* Look for this particular type in the fundamental type vector. If one is
1595 not found, create and install one appropriate for the current language. */
1597 typep = objfile->fundamental_types + typeid;
1600 *typep = create_fundamental_type (objfile, typeid);
1607 can_dereference (struct type *t)
1609 /* FIXME: Should we return true for references as well as pointers? */
1613 && TYPE_CODE (t) == TYPE_CODE_PTR
1614 && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID);
1618 is_integral_type (struct type *t)
1623 && ((TYPE_CODE (t) == TYPE_CODE_INT)
1624 || (TYPE_CODE (t) == TYPE_CODE_ENUM)
1625 || (TYPE_CODE (t) == TYPE_CODE_CHAR)
1626 || (TYPE_CODE (t) == TYPE_CODE_RANGE)
1627 || (TYPE_CODE (t) == TYPE_CODE_BOOL)));
1630 /* Chill varying string and arrays are represented as follows:
1632 struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data};
1634 Return true if TYPE is such a Chill varying type. */
1637 chill_varying_type (struct type *type)
1639 if (TYPE_CODE (type) != TYPE_CODE_STRUCT
1640 || TYPE_NFIELDS (type) != 2
1641 || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0)
1646 /* Check whether BASE is an ancestor or base class or DCLASS
1647 Return 1 if so, and 0 if not.
1648 Note: callers may want to check for identity of the types before
1649 calling this function -- identical types are considered to satisfy
1650 the ancestor relationship even if they're identical */
1653 is_ancestor (struct type *base, struct type *dclass)
1657 CHECK_TYPEDEF (base);
1658 CHECK_TYPEDEF (dclass);
1662 if (TYPE_NAME (base) && TYPE_NAME (dclass) &&
1663 !strcmp (TYPE_NAME (base), TYPE_NAME (dclass)))
1666 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1667 if (is_ancestor (base, TYPE_BASECLASS (dclass, i)))
1675 /* See whether DCLASS has a virtual table. This routine is aimed at
1676 the HP/Taligent ANSI C++ runtime model, and may not work with other
1677 runtime models. Return 1 => Yes, 0 => No. */
1680 has_vtable (struct type *dclass)
1682 /* In the HP ANSI C++ runtime model, a class has a vtable only if it
1683 has virtual functions or virtual bases. */
1687 if (TYPE_CODE (dclass) != TYPE_CODE_CLASS)
1690 /* First check for the presence of virtual bases */
1691 if (TYPE_FIELD_VIRTUAL_BITS (dclass))
1692 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1693 if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i))
1696 /* Next check for virtual functions */
1697 if (TYPE_FN_FIELDLISTS (dclass))
1698 for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++)
1699 if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0))
1702 /* Recurse on non-virtual bases to see if any of them needs a vtable */
1703 if (TYPE_FIELD_VIRTUAL_BITS (dclass))
1704 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1705 if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) &&
1706 (has_vtable (TYPE_FIELD_TYPE (dclass, i))))
1709 /* Well, maybe we don't need a virtual table */
1713 /* Return a pointer to the "primary base class" of DCLASS.
1715 A NULL return indicates that DCLASS has no primary base, or that it
1716 couldn't be found (insufficient information).
1718 This routine is aimed at the HP/Taligent ANSI C++ runtime model,
1719 and may not work with other runtime models. */
1722 primary_base_class (struct type *dclass)
1724 /* In HP ANSI C++'s runtime model, a "primary base class" of a class
1725 is the first directly inherited, non-virtual base class that
1726 requires a virtual table */
1730 if (TYPE_CODE (dclass) != TYPE_CODE_CLASS)
1733 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1734 if (!TYPE_FIELD_VIRTUAL (dclass, i) &&
1735 has_vtable (TYPE_FIELD_TYPE (dclass, i)))
1736 return TYPE_FIELD_TYPE (dclass, i);
1741 /* Global manipulated by virtual_base_list[_aux]() */
1743 static struct vbase *current_vbase_list = NULL;
1745 /* Return a pointer to a null-terminated list of struct vbase
1746 items. The vbasetype pointer of each item in the list points to the
1747 type information for a virtual base of the argument DCLASS.
1749 Helper function for virtual_base_list().
1750 Note: the list goes backward, right-to-left. virtual_base_list()
1751 copies the items out in reverse order. */
1754 virtual_base_list_aux (struct type *dclass)
1756 struct vbase *tmp_vbase;
1759 if (TYPE_CODE (dclass) != TYPE_CODE_CLASS)
1762 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1764 /* Recurse on this ancestor, first */
1765 virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i));
1767 /* If this current base is itself virtual, add it to the list */
1768 if (BASETYPE_VIA_VIRTUAL (dclass, i))
1770 struct type *basetype = TYPE_FIELD_TYPE (dclass, i);
1772 /* Check if base already recorded */
1773 tmp_vbase = current_vbase_list;
1776 if (tmp_vbase->vbasetype == basetype)
1777 break; /* found it */
1778 tmp_vbase = tmp_vbase->next;
1781 if (!tmp_vbase) /* normal exit from loop */
1783 /* Allocate new item for this virtual base */
1784 tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase));
1786 /* Stick it on at the end of the list */
1787 tmp_vbase->vbasetype = basetype;
1788 tmp_vbase->next = current_vbase_list;
1789 current_vbase_list = tmp_vbase;
1792 } /* for loop over bases */
1796 /* Compute the list of virtual bases in the right order. Virtual
1797 bases are laid out in the object's memory area in order of their
1798 occurrence in a depth-first, left-to-right search through the
1801 Argument DCLASS is the type whose virtual bases are required.
1802 Return value is the address of a null-terminated array of pointers
1803 to struct type items.
1805 This routine is aimed at the HP/Taligent ANSI C++ runtime model,
1806 and may not work with other runtime models.
1808 This routine merely hands off the argument to virtual_base_list_aux()
1809 and then copies the result into an array to save space. */
1812 virtual_base_list (struct type *dclass)
1814 register struct vbase *tmp_vbase;
1815 register struct vbase *tmp_vbase_2;
1818 struct type **vbase_array;
1820 current_vbase_list = NULL;
1821 virtual_base_list_aux (dclass);
1823 for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next)
1828 vbase_array = (struct type **) xmalloc ((count + 1) * sizeof (struct type *));
1830 for (i = count - 1, tmp_vbase = current_vbase_list; i >= 0; i--, tmp_vbase = tmp_vbase->next)
1831 vbase_array[i] = tmp_vbase->vbasetype;
1833 /* Get rid of constructed chain */
1834 tmp_vbase_2 = tmp_vbase = current_vbase_list;
1837 tmp_vbase = tmp_vbase->next;
1839 tmp_vbase_2 = tmp_vbase;
1842 vbase_array[count] = NULL;
1846 /* Return the length of the virtual base list of the type DCLASS. */
1849 virtual_base_list_length (struct type *dclass)
1852 register struct vbase *tmp_vbase;
1854 current_vbase_list = NULL;
1855 virtual_base_list_aux (dclass);
1857 for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next)
1862 /* Return the number of elements of the virtual base list of the type
1863 DCLASS, ignoring those appearing in the primary base (and its
1864 primary base, recursively). */
1867 virtual_base_list_length_skip_primaries (struct type *dclass)
1870 register struct vbase *tmp_vbase;
1871 struct type *primary;
1873 primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL;
1876 return virtual_base_list_length (dclass);
1878 current_vbase_list = NULL;
1879 virtual_base_list_aux (dclass);
1881 for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; tmp_vbase = tmp_vbase->next)
1883 if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0)
1891 /* Return the index (position) of type BASE, which is a virtual base
1892 class of DCLASS, in the latter's virtual base list. A return of -1
1893 indicates "not found" or a problem. */
1896 virtual_base_index (struct type *base, struct type *dclass)
1898 register struct type *vbase;
1901 if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) ||
1902 (TYPE_CODE (base) != TYPE_CODE_CLASS))
1906 vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[0];
1911 vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[++i];
1914 return vbase ? i : -1;
1919 /* Return the index (position) of type BASE, which is a virtual base
1920 class of DCLASS, in the latter's virtual base list. Skip over all
1921 bases that may appear in the virtual base list of the primary base
1922 class of DCLASS (recursively). A return of -1 indicates "not
1923 found" or a problem. */
1926 virtual_base_index_skip_primaries (struct type *base, struct type *dclass)
1928 register struct type *vbase;
1930 struct type *primary;
1932 if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) ||
1933 (TYPE_CODE (base) != TYPE_CODE_CLASS))
1936 primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL;
1940 vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[0];
1943 if (!primary || (virtual_base_index_skip_primaries (vbase, primary) < 0))
1947 vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[++i];
1950 return vbase ? j : -1;
1953 /* Return position of a derived class DCLASS in the list of
1954 * primary bases starting with the remotest ancestor.
1955 * Position returned is 0-based. */
1958 class_index_in_primary_list (struct type *dclass)
1960 struct type *pbc; /* primary base class */
1962 /* Simply recurse on primary base */
1963 pbc = TYPE_PRIMARY_BASE (dclass);
1965 return 1 + class_index_in_primary_list (pbc);
1970 /* Return a count of the number of virtual functions a type has.
1971 * This includes all the virtual functions it inherits from its
1975 /* pai: FIXME This doesn't do the right thing: count redefined virtual
1976 * functions only once (latest redefinition)
1980 count_virtual_fns (struct type *dclass)
1982 int fn, oi; /* function and overloaded instance indices */
1983 int vfuncs; /* count to return */
1985 /* recurse on bases that can share virtual table */
1986 struct type *pbc = primary_base_class (dclass);
1988 vfuncs = count_virtual_fns (pbc);
1992 for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++)
1993 for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++)
1994 if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi))
2002 /* Functions for overload resolution begin here */
2004 /* Compare two badness vectors A and B and return the result.
2005 * 0 => A and B are identical
2006 * 1 => A and B are incomparable
2007 * 2 => A is better than B
2008 * 3 => A is worse than B */
2011 compare_badness (struct badness_vector *a, struct badness_vector *b)
2015 short found_pos = 0; /* any positives in c? */
2016 short found_neg = 0; /* any negatives in c? */
2018 /* differing lengths => incomparable */
2019 if (a->length != b->length)
2022 /* Subtract b from a */
2023 for (i = 0; i < a->length; i++)
2025 tmp = a->rank[i] - b->rank[i];
2035 return 1; /* incomparable */
2037 return 3; /* A > B */
2043 return 2; /* A < B */
2045 return 0; /* A == B */
2049 /* Rank a function by comparing its parameter types (PARMS, length NPARMS),
2050 * to the types of an argument list (ARGS, length NARGS).
2051 * Return a pointer to a badness vector. This has NARGS + 1 entries. */
2053 struct badness_vector *
2054 rank_function (struct type **parms, int nparms, struct type **args, int nargs)
2057 struct badness_vector *bv;
2058 int min_len = nparms < nargs ? nparms : nargs;
2060 bv = xmalloc (sizeof (struct badness_vector));
2061 bv->length = nargs + 1; /* add 1 for the length-match rank */
2062 bv->rank = xmalloc ((nargs + 1) * sizeof (int));
2064 /* First compare the lengths of the supplied lists.
2065 * If there is a mismatch, set it to a high value. */
2067 /* pai/1997-06-03 FIXME: when we have debug info about default
2068 * arguments and ellipsis parameter lists, we should consider those
2069 * and rank the length-match more finely. */
2071 LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0;
2073 /* Now rank all the parameters of the candidate function */
2074 for (i = 1; i <= min_len; i++)
2075 bv->rank[i] = rank_one_type (parms[i-1], args[i-1]);
2077 /* If more arguments than parameters, add dummy entries */
2078 for (i = min_len + 1; i <= nargs; i++)
2079 bv->rank[i] = TOO_FEW_PARAMS_BADNESS;
2084 /* Compare one type (PARM) for compatibility with another (ARG).
2085 * PARM is intended to be the parameter type of a function; and
2086 * ARG is the supplied argument's type. This function tests if
2087 * the latter can be converted to the former.
2089 * Return 0 if they are identical types;
2090 * Otherwise, return an integer which corresponds to how compatible
2091 * PARM is to ARG. The higher the return value, the worse the match.
2092 * Generally the "bad" conversions are all uniformly assigned a 100 */
2095 rank_one_type (struct type *parm, struct type *arg)
2097 /* Identical type pointers */
2098 /* However, this still doesn't catch all cases of same type for arg
2099 * and param. The reason is that builtin types are different from
2100 * the same ones constructed from the object. */
2104 /* Resolve typedefs */
2105 if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF)
2106 parm = check_typedef (parm);
2107 if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF)
2108 arg = check_typedef (arg);
2111 Well, damnit, if the names are exactly the same,
2112 i'll say they are exactly the same. This happens when we generate
2113 method stubs. The types won't point to the same address, but they
2114 really are the same.
2117 if (TYPE_NAME (parm) && TYPE_NAME (arg) &&
2118 !strcmp (TYPE_NAME (parm), TYPE_NAME (arg)))
2121 /* Check if identical after resolving typedefs */
2125 /* See through references, since we can almost make non-references
2127 if (TYPE_CODE (arg) == TYPE_CODE_REF)
2128 return (rank_one_type (parm, TYPE_TARGET_TYPE (arg))
2129 + REFERENCE_CONVERSION_BADNESS);
2130 if (TYPE_CODE (parm) == TYPE_CODE_REF)
2131 return (rank_one_type (TYPE_TARGET_TYPE (parm), arg)
2132 + REFERENCE_CONVERSION_BADNESS);
2134 /* Debugging only. */
2135 fprintf_filtered (gdb_stderr,"------ Arg is %s [%d], parm is %s [%d]\n",
2136 TYPE_NAME (arg), TYPE_CODE (arg), TYPE_NAME (parm), TYPE_CODE (parm));
2138 /* x -> y means arg of type x being supplied for parameter of type y */
2140 switch (TYPE_CODE (parm))
2143 switch (TYPE_CODE (arg))
2146 if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID)
2147 return VOID_PTR_CONVERSION_BADNESS;
2149 return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg));
2150 case TYPE_CODE_ARRAY:
2151 return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg));
2152 case TYPE_CODE_FUNC:
2153 return rank_one_type (TYPE_TARGET_TYPE (parm), arg);
2155 case TYPE_CODE_ENUM:
2156 case TYPE_CODE_CHAR:
2157 case TYPE_CODE_RANGE:
2158 case TYPE_CODE_BOOL:
2159 return POINTER_CONVERSION_BADNESS;
2161 return INCOMPATIBLE_TYPE_BADNESS;
2163 case TYPE_CODE_ARRAY:
2164 switch (TYPE_CODE (arg))
2167 case TYPE_CODE_ARRAY:
2168 return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg));
2170 return INCOMPATIBLE_TYPE_BADNESS;
2172 case TYPE_CODE_FUNC:
2173 switch (TYPE_CODE (arg))
2175 case TYPE_CODE_PTR: /* funcptr -> func */
2176 return rank_one_type (parm, TYPE_TARGET_TYPE (arg));
2178 return INCOMPATIBLE_TYPE_BADNESS;
2181 switch (TYPE_CODE (arg))
2184 if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm))
2186 /* Deal with signed, unsigned, and plain chars and
2187 signed and unsigned ints */
2188 if (TYPE_NOSIGN (parm))
2190 /* This case only for character types */
2191 if (TYPE_NOSIGN (arg)) /* plain char -> plain char */
2194 return INTEGER_COERCION_BADNESS; /* signed/unsigned char -> plain char */
2196 else if (TYPE_UNSIGNED (parm))
2198 if (TYPE_UNSIGNED (arg))
2200 if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg)))
2201 return 0; /* unsigned int -> unsigned int, or unsigned long -> unsigned long */
2202 else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long"))
2203 return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */
2205 return INTEGER_COERCION_BADNESS; /* unsigned long -> unsigned int */
2209 if (!strcmp_iw (TYPE_NAME (arg), "long") && !strcmp_iw (TYPE_NAME (parm), "int"))
2210 return INTEGER_COERCION_BADNESS; /* signed long -> unsigned int */
2212 return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */
2215 else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg))
2217 if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg)))
2219 else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long"))
2220 return INTEGER_PROMOTION_BADNESS;
2222 return INTEGER_COERCION_BADNESS;
2225 return INTEGER_COERCION_BADNESS;
2227 else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2228 return INTEGER_PROMOTION_BADNESS;
2230 return INTEGER_COERCION_BADNESS;
2231 case TYPE_CODE_ENUM:
2232 case TYPE_CODE_CHAR:
2233 case TYPE_CODE_RANGE:
2234 case TYPE_CODE_BOOL:
2235 return INTEGER_PROMOTION_BADNESS;
2237 return INT_FLOAT_CONVERSION_BADNESS;
2239 return NS_POINTER_CONVERSION_BADNESS;
2241 return INCOMPATIBLE_TYPE_BADNESS;
2244 case TYPE_CODE_ENUM:
2245 switch (TYPE_CODE (arg))
2248 case TYPE_CODE_CHAR:
2249 case TYPE_CODE_RANGE:
2250 case TYPE_CODE_BOOL:
2251 case TYPE_CODE_ENUM:
2252 return INTEGER_COERCION_BADNESS;
2254 return INT_FLOAT_CONVERSION_BADNESS;
2256 return INCOMPATIBLE_TYPE_BADNESS;
2259 case TYPE_CODE_CHAR:
2260 switch (TYPE_CODE (arg))
2262 case TYPE_CODE_RANGE:
2263 case TYPE_CODE_BOOL:
2264 case TYPE_CODE_ENUM:
2265 return INTEGER_COERCION_BADNESS;
2267 return INT_FLOAT_CONVERSION_BADNESS;
2269 if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm))
2270 return INTEGER_COERCION_BADNESS;
2271 else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2272 return INTEGER_PROMOTION_BADNESS;
2273 /* >>> !! else fall through !! <<< */
2274 case TYPE_CODE_CHAR:
2275 /* Deal with signed, unsigned, and plain chars for C++
2276 and with int cases falling through from previous case */
2277 if (TYPE_NOSIGN (parm))
2279 if (TYPE_NOSIGN (arg))
2282 return INTEGER_COERCION_BADNESS;
2284 else if (TYPE_UNSIGNED (parm))
2286 if (TYPE_UNSIGNED (arg))
2289 return INTEGER_PROMOTION_BADNESS;
2291 else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg))
2294 return INTEGER_COERCION_BADNESS;
2296 return INCOMPATIBLE_TYPE_BADNESS;
2299 case TYPE_CODE_RANGE:
2300 switch (TYPE_CODE (arg))
2303 case TYPE_CODE_CHAR:
2304 case TYPE_CODE_RANGE:
2305 case TYPE_CODE_BOOL:
2306 case TYPE_CODE_ENUM:
2307 return INTEGER_COERCION_BADNESS;
2309 return INT_FLOAT_CONVERSION_BADNESS;
2311 return INCOMPATIBLE_TYPE_BADNESS;
2314 case TYPE_CODE_BOOL:
2315 switch (TYPE_CODE (arg))
2318 case TYPE_CODE_CHAR:
2319 case TYPE_CODE_RANGE:
2320 case TYPE_CODE_ENUM:
2323 return BOOLEAN_CONVERSION_BADNESS;
2324 case TYPE_CODE_BOOL:
2327 return INCOMPATIBLE_TYPE_BADNESS;
2331 switch (TYPE_CODE (arg))
2334 if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2335 return FLOAT_PROMOTION_BADNESS;
2336 else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm))
2339 return FLOAT_CONVERSION_BADNESS;
2341 case TYPE_CODE_BOOL:
2342 case TYPE_CODE_ENUM:
2343 case TYPE_CODE_RANGE:
2344 case TYPE_CODE_CHAR:
2345 return INT_FLOAT_CONVERSION_BADNESS;
2347 return INCOMPATIBLE_TYPE_BADNESS;
2350 case TYPE_CODE_COMPLEX:
2351 switch (TYPE_CODE (arg))
2352 { /* Strictly not needed for C++, but... */
2354 return FLOAT_PROMOTION_BADNESS;
2355 case TYPE_CODE_COMPLEX:
2358 return INCOMPATIBLE_TYPE_BADNESS;
2361 case TYPE_CODE_STRUCT:
2362 /* currently same as TYPE_CODE_CLASS */
2363 switch (TYPE_CODE (arg))
2365 case TYPE_CODE_STRUCT:
2366 /* Check for derivation */
2367 if (is_ancestor (parm, arg))
2368 return BASE_CONVERSION_BADNESS;
2369 /* else fall through */
2371 return INCOMPATIBLE_TYPE_BADNESS;
2374 case TYPE_CODE_UNION:
2375 switch (TYPE_CODE (arg))
2377 case TYPE_CODE_UNION:
2379 return INCOMPATIBLE_TYPE_BADNESS;
2382 case TYPE_CODE_MEMBER:
2383 switch (TYPE_CODE (arg))
2386 return INCOMPATIBLE_TYPE_BADNESS;
2389 case TYPE_CODE_METHOD:
2390 switch (TYPE_CODE (arg))
2394 return INCOMPATIBLE_TYPE_BADNESS;
2398 switch (TYPE_CODE (arg))
2402 return INCOMPATIBLE_TYPE_BADNESS;
2407 switch (TYPE_CODE (arg))
2411 return rank_one_type (TYPE_FIELD_TYPE (parm, 0), TYPE_FIELD_TYPE (arg, 0));
2413 return INCOMPATIBLE_TYPE_BADNESS;
2416 case TYPE_CODE_VOID:
2418 return INCOMPATIBLE_TYPE_BADNESS;
2419 } /* switch (TYPE_CODE (arg)) */
2423 /* End of functions for overload resolution */
2426 print_bit_vector (B_TYPE *bits, int nbits)
2430 for (bitno = 0; bitno < nbits; bitno++)
2432 if ((bitno % 8) == 0)
2434 puts_filtered (" ");
2436 if (B_TST (bits, bitno))
2438 printf_filtered ("1");
2442 printf_filtered ("0");
2447 /* The args list is a strange beast. It is either terminated by a NULL
2448 pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID
2449 type for normal fixed argcount functions. (FIXME someday)
2450 Also note the first arg should be the "this" pointer, we may not want to
2451 include it since we may get into a infinitely recursive situation. */
2454 print_arg_types (struct type **args, int spaces)
2458 while (*args != NULL)
2460 recursive_dump_type (*args, spaces + 2);
2461 if ((*args++)->code == TYPE_CODE_VOID)
2470 dump_fn_fieldlists (struct type *type, int spaces)
2476 printfi_filtered (spaces, "fn_fieldlists ");
2477 gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout);
2478 printf_filtered ("\n");
2479 for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++)
2481 f = TYPE_FN_FIELDLIST1 (type, method_idx);
2482 printfi_filtered (spaces + 2, "[%d] name '%s' (",
2484 TYPE_FN_FIELDLIST_NAME (type, method_idx));
2485 gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx),
2487 printf_filtered (") length %d\n",
2488 TYPE_FN_FIELDLIST_LENGTH (type, method_idx));
2489 for (overload_idx = 0;
2490 overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx);
2493 printfi_filtered (spaces + 4, "[%d] physname '%s' (",
2495 TYPE_FN_FIELD_PHYSNAME (f, overload_idx));
2496 gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx),
2498 printf_filtered (")\n");
2499 printfi_filtered (spaces + 8, "type ");
2500 gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout);
2501 printf_filtered ("\n");
2503 recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx),
2506 printfi_filtered (spaces + 8, "args ");
2507 gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout);
2508 printf_filtered ("\n");
2510 print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces);
2511 printfi_filtered (spaces + 8, "fcontext ");
2512 gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx),
2514 printf_filtered ("\n");
2516 printfi_filtered (spaces + 8, "is_const %d\n",
2517 TYPE_FN_FIELD_CONST (f, overload_idx));
2518 printfi_filtered (spaces + 8, "is_volatile %d\n",
2519 TYPE_FN_FIELD_VOLATILE (f, overload_idx));
2520 printfi_filtered (spaces + 8, "is_private %d\n",
2521 TYPE_FN_FIELD_PRIVATE (f, overload_idx));
2522 printfi_filtered (spaces + 8, "is_protected %d\n",
2523 TYPE_FN_FIELD_PROTECTED (f, overload_idx));
2524 printfi_filtered (spaces + 8, "is_stub %d\n",
2525 TYPE_FN_FIELD_STUB (f, overload_idx));
2526 printfi_filtered (spaces + 8, "voffset %u\n",
2527 TYPE_FN_FIELD_VOFFSET (f, overload_idx));
2533 print_cplus_stuff (struct type *type, int spaces)
2535 printfi_filtered (spaces, "n_baseclasses %d\n",
2536 TYPE_N_BASECLASSES (type));
2537 printfi_filtered (spaces, "nfn_fields %d\n",
2538 TYPE_NFN_FIELDS (type));
2539 printfi_filtered (spaces, "nfn_fields_total %d\n",
2540 TYPE_NFN_FIELDS_TOTAL (type));
2541 if (TYPE_N_BASECLASSES (type) > 0)
2543 printfi_filtered (spaces, "virtual_field_bits (%d bits at *",
2544 TYPE_N_BASECLASSES (type));
2545 gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout);
2546 printf_filtered (")");
2548 print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type),
2549 TYPE_N_BASECLASSES (type));
2550 puts_filtered ("\n");
2552 if (TYPE_NFIELDS (type) > 0)
2554 if (TYPE_FIELD_PRIVATE_BITS (type) != NULL)
2556 printfi_filtered (spaces, "private_field_bits (%d bits at *",
2557 TYPE_NFIELDS (type));
2558 gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout);
2559 printf_filtered (")");
2560 print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type),
2561 TYPE_NFIELDS (type));
2562 puts_filtered ("\n");
2564 if (TYPE_FIELD_PROTECTED_BITS (type) != NULL)
2566 printfi_filtered (spaces, "protected_field_bits (%d bits at *",
2567 TYPE_NFIELDS (type));
2568 gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout);
2569 printf_filtered (")");
2570 print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type),
2571 TYPE_NFIELDS (type));
2572 puts_filtered ("\n");
2575 if (TYPE_NFN_FIELDS (type) > 0)
2577 dump_fn_fieldlists (type, spaces);
2581 static struct obstack dont_print_type_obstack;
2584 recursive_dump_type (struct type *type, int spaces)
2589 obstack_begin (&dont_print_type_obstack, 0);
2591 if (TYPE_NFIELDS (type) > 0
2592 || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0))
2594 struct type **first_dont_print
2595 = (struct type **) obstack_base (&dont_print_type_obstack);
2597 int i = (struct type **) obstack_next_free (&dont_print_type_obstack)
2602 if (type == first_dont_print[i])
2604 printfi_filtered (spaces, "type node ");
2605 gdb_print_host_address (type, gdb_stdout);
2606 printf_filtered (" <same as already seen type>\n");
2611 obstack_ptr_grow (&dont_print_type_obstack, type);
2614 printfi_filtered (spaces, "type node ");
2615 gdb_print_host_address (type, gdb_stdout);
2616 printf_filtered ("\n");
2617 printfi_filtered (spaces, "name '%s' (",
2618 TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>");
2619 gdb_print_host_address (TYPE_NAME (type), gdb_stdout);
2620 printf_filtered (")\n");
2621 if (TYPE_TAG_NAME (type) != NULL)
2623 printfi_filtered (spaces, "tagname '%s' (",
2624 TYPE_TAG_NAME (type));
2625 gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout);
2626 printf_filtered (")\n");
2628 printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type));
2629 switch (TYPE_CODE (type))
2631 case TYPE_CODE_UNDEF:
2632 printf_filtered ("(TYPE_CODE_UNDEF)");
2635 printf_filtered ("(TYPE_CODE_PTR)");
2637 case TYPE_CODE_ARRAY:
2638 printf_filtered ("(TYPE_CODE_ARRAY)");
2640 case TYPE_CODE_STRUCT:
2641 printf_filtered ("(TYPE_CODE_STRUCT)");
2643 case TYPE_CODE_UNION:
2644 printf_filtered ("(TYPE_CODE_UNION)");
2646 case TYPE_CODE_ENUM:
2647 printf_filtered ("(TYPE_CODE_ENUM)");
2649 case TYPE_CODE_FUNC:
2650 printf_filtered ("(TYPE_CODE_FUNC)");
2653 printf_filtered ("(TYPE_CODE_INT)");
2656 printf_filtered ("(TYPE_CODE_FLT)");
2658 case TYPE_CODE_VOID:
2659 printf_filtered ("(TYPE_CODE_VOID)");
2662 printf_filtered ("(TYPE_CODE_SET)");
2664 case TYPE_CODE_RANGE:
2665 printf_filtered ("(TYPE_CODE_RANGE)");
2667 case TYPE_CODE_STRING:
2668 printf_filtered ("(TYPE_CODE_STRING)");
2670 case TYPE_CODE_ERROR:
2671 printf_filtered ("(TYPE_CODE_ERROR)");
2673 case TYPE_CODE_MEMBER:
2674 printf_filtered ("(TYPE_CODE_MEMBER)");
2676 case TYPE_CODE_METHOD:
2677 printf_filtered ("(TYPE_CODE_METHOD)");
2680 printf_filtered ("(TYPE_CODE_REF)");
2682 case TYPE_CODE_CHAR:
2683 printf_filtered ("(TYPE_CODE_CHAR)");
2685 case TYPE_CODE_BOOL:
2686 printf_filtered ("(TYPE_CODE_BOOL)");
2688 case TYPE_CODE_TYPEDEF:
2689 printf_filtered ("(TYPE_CODE_TYPEDEF)");
2692 printf_filtered ("(UNKNOWN TYPE CODE)");
2695 puts_filtered ("\n");
2696 printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type));
2697 printfi_filtered (spaces, "objfile ");
2698 gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout);
2699 printf_filtered ("\n");
2700 printfi_filtered (spaces, "target_type ");
2701 gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout);
2702 printf_filtered ("\n");
2703 if (TYPE_TARGET_TYPE (type) != NULL)
2705 recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2);
2707 printfi_filtered (spaces, "pointer_type ");
2708 gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout);
2709 printf_filtered ("\n");
2710 printfi_filtered (spaces, "reference_type ");
2711 gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout);
2712 printf_filtered ("\n");
2713 printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type));
2714 if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED)
2716 puts_filtered (" TYPE_FLAG_UNSIGNED");
2718 if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
2720 puts_filtered (" TYPE_FLAG_STUB");
2722 puts_filtered ("\n");
2723 printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type));
2724 gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout);
2725 puts_filtered ("\n");
2726 for (idx = 0; idx < TYPE_NFIELDS (type); idx++)
2728 printfi_filtered (spaces + 2,
2729 "[%d] bitpos %d bitsize %d type ",
2730 idx, TYPE_FIELD_BITPOS (type, idx),
2731 TYPE_FIELD_BITSIZE (type, idx));
2732 gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout);
2733 printf_filtered (" name '%s' (",
2734 TYPE_FIELD_NAME (type, idx) != NULL
2735 ? TYPE_FIELD_NAME (type, idx)
2737 gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout);
2738 printf_filtered (")\n");
2739 if (TYPE_FIELD_TYPE (type, idx) != NULL)
2741 recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4);
2744 printfi_filtered (spaces, "vptr_basetype ");
2745 gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout);
2746 puts_filtered ("\n");
2747 if (TYPE_VPTR_BASETYPE (type) != NULL)
2749 recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2);
2751 printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type));
2752 switch (TYPE_CODE (type))
2754 case TYPE_CODE_METHOD:
2755 case TYPE_CODE_FUNC:
2756 printfi_filtered (spaces, "arg_types ");
2757 gdb_print_host_address (TYPE_ARG_TYPES (type), gdb_stdout);
2758 puts_filtered ("\n");
2759 print_arg_types (TYPE_ARG_TYPES (type), spaces);
2762 case TYPE_CODE_STRUCT:
2763 printfi_filtered (spaces, "cplus_stuff ");
2764 gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout);
2765 puts_filtered ("\n");
2766 print_cplus_stuff (type, spaces);
2770 /* We have to pick one of the union types to be able print and test
2771 the value. Pick cplus_struct_type, even though we know it isn't
2772 any particular one. */
2773 printfi_filtered (spaces, "type_specific ");
2774 gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout);
2775 if (TYPE_CPLUS_SPECIFIC (type) != NULL)
2777 printf_filtered (" (unknown data form)");
2779 printf_filtered ("\n");
2784 obstack_free (&dont_print_type_obstack, NULL);
2787 static void build_gdbtypes (void);
2789 build_gdbtypes (void)
2792 init_type (TYPE_CODE_VOID, 1,
2794 "void", (struct objfile *) NULL);
2796 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2798 "char", (struct objfile *) NULL);
2799 TYPE_FLAGS (builtin_type_char) |= TYPE_FLAG_NOSIGN;
2800 builtin_type_true_char =
2801 init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2803 "true character", (struct objfile *) NULL);
2804 builtin_type_signed_char =
2805 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2807 "signed char", (struct objfile *) NULL);
2808 builtin_type_unsigned_char =
2809 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2811 "unsigned char", (struct objfile *) NULL);
2812 builtin_type_short =
2813 init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
2815 "short", (struct objfile *) NULL);
2816 builtin_type_unsigned_short =
2817 init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
2819 "unsigned short", (struct objfile *) NULL);
2821 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
2823 "int", (struct objfile *) NULL);
2824 builtin_type_unsigned_int =
2825 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
2827 "unsigned int", (struct objfile *) NULL);
2829 init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
2831 "long", (struct objfile *) NULL);
2832 builtin_type_unsigned_long =
2833 init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
2835 "unsigned long", (struct objfile *) NULL);
2836 builtin_type_long_long =
2837 init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
2839 "long long", (struct objfile *) NULL);
2840 builtin_type_unsigned_long_long =
2841 init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
2843 "unsigned long long", (struct objfile *) NULL);
2844 builtin_type_float =
2845 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
2847 "float", (struct objfile *) NULL);
2848 builtin_type_double =
2849 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
2851 "double", (struct objfile *) NULL);
2852 builtin_type_long_double =
2853 init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
2855 "long double", (struct objfile *) NULL);
2856 builtin_type_complex =
2857 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
2859 "complex", (struct objfile *) NULL);
2860 TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float;
2861 builtin_type_double_complex =
2862 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
2864 "double complex", (struct objfile *) NULL);
2865 TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double;
2866 builtin_type_string =
2867 init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2869 "string", (struct objfile *) NULL);
2871 init_type (TYPE_CODE_INT, 8 / 8,
2873 "int8_t", (struct objfile *) NULL);
2874 builtin_type_uint8 =
2875 init_type (TYPE_CODE_INT, 8 / 8,
2877 "uint8_t", (struct objfile *) NULL);
2878 builtin_type_int16 =
2879 init_type (TYPE_CODE_INT, 16 / 8,
2881 "int16_t", (struct objfile *) NULL);
2882 builtin_type_uint16 =
2883 init_type (TYPE_CODE_INT, 16 / 8,
2885 "uint16_t", (struct objfile *) NULL);
2886 builtin_type_int32 =
2887 init_type (TYPE_CODE_INT, 32 / 8,
2889 "int32_t", (struct objfile *) NULL);
2890 builtin_type_uint32 =
2891 init_type (TYPE_CODE_INT, 32 / 8,
2893 "uint32_t", (struct objfile *) NULL);
2894 builtin_type_int64 =
2895 init_type (TYPE_CODE_INT, 64 / 8,
2897 "int64_t", (struct objfile *) NULL);
2898 builtin_type_uint64 =
2899 init_type (TYPE_CODE_INT, 64 / 8,
2901 "uint64_t", (struct objfile *) NULL);
2903 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
2905 "bool", (struct objfile *) NULL);
2907 /* Add user knob for controlling resolution of opaque types */
2909 (add_set_cmd ("opaque-type-resolution", class_support, var_boolean, (char *) &opaque_type_resolution,
2910 "Set resolution of opaque struct/class/union types (if set before loading symbols).",
2913 opaque_type_resolution = 1;
2916 /* Build SIMD types. */
2918 = init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4);
2920 = init_simd_type ("__builtin_v4si", builtin_type_int32, "f", 4);
2922 = init_simd_type ("__builtin_v8qi", builtin_type_int8, "f", 8);
2924 = init_simd_type ("__builtin_v4hi", builtin_type_int16, "f", 4);
2926 = init_simd_type ("__builtin_v2si", builtin_type_int32, "f", 2);
2928 /* Pointer/Address types. */
2929 /* NOTE: At present there is no way of differentiating between at
2930 target address and the target C language pointer type type even
2931 though the two can be different (cf d10v) */
2932 builtin_type_ptr = make_pointer_type (builtin_type_void, NULL);
2933 builtin_type_CORE_ADDR =
2934 init_type (TYPE_CODE_INT, TARGET_ADDR_BIT / 8,
2936 "__CORE_ADDR", (struct objfile *) NULL);
2937 builtin_type_bfd_vma =
2938 init_type (TYPE_CODE_INT, TARGET_BFD_VMA_BIT / 8,
2940 "__bfd_vma", (struct objfile *) NULL);
2944 extern void _initialize_gdbtypes (void);
2946 _initialize_gdbtypes (void)
2948 struct cmd_list_element *c;
2951 /* FIXME - For the moment, handle types by swapping them in and out.
2952 Should be using the per-architecture data-pointer and a large
2954 register_gdbarch_swap (&builtin_type_void, sizeof (struct type *), NULL);
2955 register_gdbarch_swap (&builtin_type_char, sizeof (struct type *), NULL);
2956 register_gdbarch_swap (&builtin_type_short, sizeof (struct type *), NULL);
2957 register_gdbarch_swap (&builtin_type_int, sizeof (struct type *), NULL);
2958 register_gdbarch_swap (&builtin_type_long, sizeof (struct type *), NULL);
2959 register_gdbarch_swap (&builtin_type_long_long, sizeof (struct type *), NULL);
2960 register_gdbarch_swap (&builtin_type_signed_char, sizeof (struct type *), NULL);
2961 register_gdbarch_swap (&builtin_type_unsigned_char, sizeof (struct type *), NULL);
2962 register_gdbarch_swap (&builtin_type_unsigned_short, sizeof (struct type *), NULL);
2963 register_gdbarch_swap (&builtin_type_unsigned_int, sizeof (struct type *), NULL);
2964 register_gdbarch_swap (&builtin_type_unsigned_long, sizeof (struct type *), NULL);
2965 register_gdbarch_swap (&builtin_type_unsigned_long_long, sizeof (struct type *), NULL);
2966 register_gdbarch_swap (&builtin_type_float, sizeof (struct type *), NULL);
2967 register_gdbarch_swap (&builtin_type_double, sizeof (struct type *), NULL);
2968 register_gdbarch_swap (&builtin_type_long_double, sizeof (struct type *), NULL);
2969 register_gdbarch_swap (&builtin_type_complex, sizeof (struct type *), NULL);
2970 register_gdbarch_swap (&builtin_type_double_complex, sizeof (struct type *), NULL);
2971 register_gdbarch_swap (&builtin_type_string, sizeof (struct type *), NULL);
2972 register_gdbarch_swap (&builtin_type_int8, sizeof (struct type *), NULL);
2973 register_gdbarch_swap (&builtin_type_uint8, sizeof (struct type *), NULL);
2974 register_gdbarch_swap (&builtin_type_int16, sizeof (struct type *), NULL);
2975 register_gdbarch_swap (&builtin_type_uint16, sizeof (struct type *), NULL);
2976 register_gdbarch_swap (&builtin_type_int32, sizeof (struct type *), NULL);
2977 register_gdbarch_swap (&builtin_type_uint32, sizeof (struct type *), NULL);
2978 register_gdbarch_swap (&builtin_type_int64, sizeof (struct type *), NULL);
2979 register_gdbarch_swap (&builtin_type_uint64, sizeof (struct type *), NULL);
2980 register_gdbarch_swap (&builtin_type_v4sf, sizeof (struct type *), NULL);
2981 register_gdbarch_swap (&builtin_type_v4si, sizeof (struct type *), NULL);
2982 register_gdbarch_swap (&builtin_type_v8qi, sizeof (struct type *), NULL);
2983 register_gdbarch_swap (&builtin_type_v4hi, sizeof (struct type *), NULL);
2984 register_gdbarch_swap (&builtin_type_v2si, sizeof (struct type *), NULL);
2985 REGISTER_GDBARCH_SWAP (builtin_type_ptr);
2986 REGISTER_GDBARCH_SWAP (builtin_type_CORE_ADDR);
2987 REGISTER_GDBARCH_SWAP (builtin_type_bfd_vma);
2988 register_gdbarch_swap (NULL, 0, build_gdbtypes);
2991 add_set_cmd ("overload", no_class, var_zinteger, (char *) &overload_debug,
2992 "Set debugging of C++ overloading.\n\
2993 When enabled, ranking of the functions\n\
2994 is displayed.", &setdebuglist),