1 /* Support routines for manipulating internal types for GDB.
3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
4 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
30 #include "expression.h"
35 #include "complaints.h"
39 #include "gdb_assert.h"
42 /* These variables point to the objects
43 representing the predefined C data types. */
45 struct type *builtin_type_int0;
46 struct type *builtin_type_int8;
47 struct type *builtin_type_uint8;
48 struct type *builtin_type_int16;
49 struct type *builtin_type_uint16;
50 struct type *builtin_type_int32;
51 struct type *builtin_type_uint32;
52 struct type *builtin_type_int64;
53 struct type *builtin_type_uint64;
54 struct type *builtin_type_int128;
55 struct type *builtin_type_uint128;
57 /* Floatformat pairs. */
58 const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = {
59 &floatformat_ieee_single_big,
60 &floatformat_ieee_single_little
62 const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = {
63 &floatformat_ieee_double_big,
64 &floatformat_ieee_double_little
66 const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = {
67 &floatformat_ieee_double_big,
68 &floatformat_ieee_double_littlebyte_bigword
70 const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = {
71 &floatformat_i387_ext,
74 const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = {
75 &floatformat_m68881_ext,
76 &floatformat_m68881_ext
78 const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = {
79 &floatformat_arm_ext_big,
80 &floatformat_arm_ext_littlebyte_bigword
82 const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = {
83 &floatformat_ia64_spill_big,
84 &floatformat_ia64_spill_little
86 const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = {
87 &floatformat_ia64_quad_big,
88 &floatformat_ia64_quad_little
90 const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = {
94 const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = {
98 const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = {
99 &floatformat_ibm_long_double,
100 &floatformat_ibm_long_double
103 struct type *builtin_type_ieee_single;
104 struct type *builtin_type_ieee_double;
105 struct type *builtin_type_i387_ext;
106 struct type *builtin_type_m68881_ext;
107 struct type *builtin_type_arm_ext;
108 struct type *builtin_type_ia64_spill;
109 struct type *builtin_type_ia64_quad;
111 /* Platform-neutral void type. */
112 struct type *builtin_type_void;
114 /* Platform-neutral character types. */
115 struct type *builtin_type_true_char;
116 struct type *builtin_type_true_unsigned_char;
119 int opaque_type_resolution = 1;
121 show_opaque_type_resolution (struct ui_file *file, int from_tty,
122 struct cmd_list_element *c,
125 fprintf_filtered (file, _("\
126 Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"),
130 int overload_debug = 0;
132 show_overload_debug (struct ui_file *file, int from_tty,
133 struct cmd_list_element *c, const char *value)
135 fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"),
143 }; /* Maximum extension is 128! FIXME */
145 static void print_bit_vector (B_TYPE *, int);
146 static void print_arg_types (struct field *, int, int);
147 static void dump_fn_fieldlists (struct type *, int);
148 static void print_cplus_stuff (struct type *, int);
151 /* Alloc a new type structure and fill it with some defaults. If
152 OBJFILE is non-NULL, then allocate the space for the type structure
153 in that objfile's objfile_obstack. Otherwise allocate the new type
154 structure by xmalloc () (for permanent types). */
157 alloc_type (struct objfile *objfile)
161 /* Alloc the structure and start off with all fields zeroed. */
165 type = XZALLOC (struct type);
166 TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type);
170 type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type);
171 TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack,
173 OBJSTAT (objfile, n_types++);
176 /* Initialize the fields that might not be zero. */
178 TYPE_CODE (type) = TYPE_CODE_UNDEF;
179 TYPE_OBJFILE (type) = objfile;
180 TYPE_VPTR_FIELDNO (type) = -1;
181 TYPE_CHAIN (type) = type; /* Chain back to itself. */
186 /* Alloc a new type instance structure, fill it with some defaults,
187 and point it at OLDTYPE. Allocate the new type instance from the
188 same place as OLDTYPE. */
191 alloc_type_instance (struct type *oldtype)
195 /* Allocate the structure. */
197 if (TYPE_OBJFILE (oldtype) == NULL)
198 type = XZALLOC (struct type);
200 type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack,
203 TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype);
205 TYPE_CHAIN (type) = type; /* Chain back to itself for now. */
210 /* Clear all remnants of the previous type at TYPE, in preparation for
211 replacing it with something else. */
213 smash_type (struct type *type)
215 memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type));
217 /* For now, delete the rings. */
218 TYPE_CHAIN (type) = type;
220 /* For now, leave the pointer/reference types alone. */
223 /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points
224 to a pointer to memory where the pointer type should be stored.
225 If *TYPEPTR is zero, update it to point to the pointer type we return.
226 We allocate new memory if needed. */
229 make_pointer_type (struct type *type, struct type **typeptr)
231 struct type *ntype; /* New type */
232 struct objfile *objfile;
235 ntype = TYPE_POINTER_TYPE (type);
240 return ntype; /* Don't care about alloc,
241 and have new type. */
242 else if (*typeptr == 0)
244 *typeptr = ntype; /* Tracking alloc, and have new type. */
249 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
251 ntype = alloc_type (TYPE_OBJFILE (type));
255 else /* We have storage, but need to reset it. */
258 objfile = TYPE_OBJFILE (ntype);
259 chain = TYPE_CHAIN (ntype);
261 TYPE_CHAIN (ntype) = chain;
262 TYPE_OBJFILE (ntype) = objfile;
265 TYPE_TARGET_TYPE (ntype) = type;
266 TYPE_POINTER_TYPE (type) = ntype;
268 /* FIXME! Assume the machine has only one representation for
271 TYPE_LENGTH (ntype) =
272 gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
273 TYPE_CODE (ntype) = TYPE_CODE_PTR;
275 /* Mark pointers as unsigned. The target converts between pointers
276 and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and
277 gdbarch_address_to_pointer. */
278 TYPE_UNSIGNED (ntype) = 1;
280 if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */
281 TYPE_POINTER_TYPE (type) = ntype;
283 /* Update the length of all the other variants of this type. */
284 chain = TYPE_CHAIN (ntype);
285 while (chain != ntype)
287 TYPE_LENGTH (chain) = TYPE_LENGTH (ntype);
288 chain = TYPE_CHAIN (chain);
294 /* Given a type TYPE, return a type of pointers to that type.
295 May need to construct such a type if this is the first use. */
298 lookup_pointer_type (struct type *type)
300 return make_pointer_type (type, (struct type **) 0);
303 /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero,
304 points to a pointer to memory where the reference type should be
305 stored. If *TYPEPTR is zero, update it to point to the reference
306 type we return. We allocate new memory if needed. */
309 make_reference_type (struct type *type, struct type **typeptr)
311 struct type *ntype; /* New type */
312 struct objfile *objfile;
315 ntype = TYPE_REFERENCE_TYPE (type);
320 return ntype; /* Don't care about alloc,
321 and have new type. */
322 else if (*typeptr == 0)
324 *typeptr = ntype; /* Tracking alloc, and have new type. */
329 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
331 ntype = alloc_type (TYPE_OBJFILE (type));
335 else /* We have storage, but need to reset it. */
338 objfile = TYPE_OBJFILE (ntype);
339 chain = TYPE_CHAIN (ntype);
341 TYPE_CHAIN (ntype) = chain;
342 TYPE_OBJFILE (ntype) = objfile;
345 TYPE_TARGET_TYPE (ntype) = type;
346 TYPE_REFERENCE_TYPE (type) = ntype;
348 /* FIXME! Assume the machine has only one representation for
349 references, and that it matches the (only) representation for
352 TYPE_LENGTH (ntype) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
353 TYPE_CODE (ntype) = TYPE_CODE_REF;
355 if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */
356 TYPE_REFERENCE_TYPE (type) = ntype;
358 /* Update the length of all the other variants of this type. */
359 chain = TYPE_CHAIN (ntype);
360 while (chain != ntype)
362 TYPE_LENGTH (chain) = TYPE_LENGTH (ntype);
363 chain = TYPE_CHAIN (chain);
369 /* Same as above, but caller doesn't care about memory allocation
373 lookup_reference_type (struct type *type)
375 return make_reference_type (type, (struct type **) 0);
378 /* Lookup a function type that returns type TYPE. TYPEPTR, if
379 nonzero, points to a pointer to memory where the function type
380 should be stored. If *TYPEPTR is zero, update it to point to the
381 function type we return. We allocate new memory if needed. */
384 make_function_type (struct type *type, struct type **typeptr)
386 struct type *ntype; /* New type */
387 struct objfile *objfile;
389 if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
391 ntype = alloc_type (TYPE_OBJFILE (type));
395 else /* We have storage, but need to reset it. */
398 objfile = TYPE_OBJFILE (ntype);
400 TYPE_OBJFILE (ntype) = objfile;
403 TYPE_TARGET_TYPE (ntype) = type;
405 TYPE_LENGTH (ntype) = 1;
406 TYPE_CODE (ntype) = TYPE_CODE_FUNC;
412 /* Given a type TYPE, return a type of functions that return that type.
413 May need to construct such a type if this is the first use. */
416 lookup_function_type (struct type *type)
418 return make_function_type (type, (struct type **) 0);
421 /* Identify address space identifier by name --
422 return the integer flag defined in gdbtypes.h. */
424 address_space_name_to_int (char *space_identifier)
426 struct gdbarch *gdbarch = current_gdbarch;
428 /* Check for known address space delimiters. */
429 if (!strcmp (space_identifier, "code"))
430 return TYPE_INSTANCE_FLAG_CODE_SPACE;
431 else if (!strcmp (space_identifier, "data"))
432 return TYPE_INSTANCE_FLAG_DATA_SPACE;
433 else if (gdbarch_address_class_name_to_type_flags_p (gdbarch)
434 && gdbarch_address_class_name_to_type_flags (gdbarch,
439 error (_("Unknown address space specifier: \"%s\""), space_identifier);
442 /* Identify address space identifier by integer flag as defined in
443 gdbtypes.h -- return the string version of the adress space name. */
446 address_space_int_to_name (int space_flag)
448 struct gdbarch *gdbarch = current_gdbarch;
449 if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE)
451 else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE)
453 else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
454 && gdbarch_address_class_type_flags_to_name_p (gdbarch))
455 return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag);
460 /* Create a new type with instance flags NEW_FLAGS, based on TYPE.
462 If STORAGE is non-NULL, create the new type instance there.
463 STORAGE must be in the same obstack as TYPE. */
466 make_qualified_type (struct type *type, int new_flags,
467 struct type *storage)
474 if (TYPE_INSTANCE_FLAGS (ntype) == new_flags)
476 ntype = TYPE_CHAIN (ntype);
478 while (ntype != type);
480 /* Create a new type instance. */
482 ntype = alloc_type_instance (type);
485 /* If STORAGE was provided, it had better be in the same objfile
486 as TYPE. Otherwise, we can't link it into TYPE's cv chain:
487 if one objfile is freed and the other kept, we'd have
488 dangling pointers. */
489 gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage));
492 TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type);
493 TYPE_CHAIN (ntype) = ntype;
496 /* Pointers or references to the original type are not relevant to
498 TYPE_POINTER_TYPE (ntype) = (struct type *) 0;
499 TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0;
501 /* Chain the new qualified type to the old type. */
502 TYPE_CHAIN (ntype) = TYPE_CHAIN (type);
503 TYPE_CHAIN (type) = ntype;
505 /* Now set the instance flags and return the new type. */
506 TYPE_INSTANCE_FLAGS (ntype) = new_flags;
508 /* Set length of new type to that of the original type. */
509 TYPE_LENGTH (ntype) = TYPE_LENGTH (type);
514 /* Make an address-space-delimited variant of a type -- a type that
515 is identical to the one supplied except that it has an address
516 space attribute attached to it (such as "code" or "data").
518 The space attributes "code" and "data" are for Harvard
519 architectures. The address space attributes are for architectures
520 which have alternately sized pointers or pointers with alternate
524 make_type_with_address_space (struct type *type, int space_flag)
527 int new_flags = ((TYPE_INSTANCE_FLAGS (type)
528 & ~(TYPE_INSTANCE_FLAG_CODE_SPACE
529 | TYPE_INSTANCE_FLAG_DATA_SPACE
530 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL))
533 return make_qualified_type (type, new_flags, NULL);
536 /* Make a "c-v" variant of a type -- a type that is identical to the
537 one supplied except that it may have const or volatile attributes
538 CNST is a flag for setting the const attribute
539 VOLTL is a flag for setting the volatile attribute
540 TYPE is the base type whose variant we are creating.
542 If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to
543 storage to hold the new qualified type; *TYPEPTR and TYPE must be
544 in the same objfile. Otherwise, allocate fresh memory for the new
545 type whereever TYPE lives. If TYPEPTR is non-zero, set it to the
546 new type we construct. */
548 make_cv_type (int cnst, int voltl,
550 struct type **typeptr)
552 struct type *ntype; /* New type */
553 struct type *tmp_type = type; /* tmp type */
554 struct objfile *objfile;
556 int new_flags = (TYPE_INSTANCE_FLAGS (type)
557 & ~(TYPE_INSTANCE_FLAG_CONST | TYPE_INSTANCE_FLAG_VOLATILE));
560 new_flags |= TYPE_INSTANCE_FLAG_CONST;
563 new_flags |= TYPE_INSTANCE_FLAG_VOLATILE;
565 if (typeptr && *typeptr != NULL)
567 /* TYPE and *TYPEPTR must be in the same objfile. We can't have
568 a C-V variant chain that threads across objfiles: if one
569 objfile gets freed, then the other has a broken C-V chain.
571 This code used to try to copy over the main type from TYPE to
572 *TYPEPTR if they were in different objfiles, but that's
573 wrong, too: TYPE may have a field list or member function
574 lists, which refer to types of their own, etc. etc. The
575 whole shebang would need to be copied over recursively; you
576 can't have inter-objfile pointers. The only thing to do is
577 to leave stub types as stub types, and look them up afresh by
578 name each time you encounter them. */
579 gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type));
582 ntype = make_qualified_type (type, new_flags,
583 typeptr ? *typeptr : NULL);
591 /* Replace the contents of ntype with the type *type. This changes the
592 contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus
593 the changes are propogated to all types in the TYPE_CHAIN.
595 In order to build recursive types, it's inevitable that we'll need
596 to update types in place --- but this sort of indiscriminate
597 smashing is ugly, and needs to be replaced with something more
598 controlled. TYPE_MAIN_TYPE is a step in this direction; it's not
599 clear if more steps are needed. */
601 replace_type (struct type *ntype, struct type *type)
605 /* These two types had better be in the same objfile. Otherwise,
606 the assignment of one type's main type structure to the other
607 will produce a type with references to objects (names; field
608 lists; etc.) allocated on an objfile other than its own. */
609 gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype));
611 *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type);
613 /* The type length is not a part of the main type. Update it for
614 each type on the variant chain. */
618 /* Assert that this element of the chain has no address-class bits
619 set in its flags. Such type variants might have type lengths
620 which are supposed to be different from the non-address-class
621 variants. This assertion shouldn't ever be triggered because
622 symbol readers which do construct address-class variants don't
623 call replace_type(). */
624 gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0);
626 TYPE_LENGTH (chain) = TYPE_LENGTH (type);
627 chain = TYPE_CHAIN (chain);
629 while (ntype != chain);
631 /* Assert that the two types have equivalent instance qualifiers.
632 This should be true for at least all of our debug readers. */
633 gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type));
636 /* Implement direct support for MEMBER_TYPE in GNU C++.
637 May need to construct such a type if this is the first use.
638 The TYPE is the type of the member. The DOMAIN is the type
639 of the aggregate that the member belongs to. */
642 lookup_memberptr_type (struct type *type, struct type *domain)
646 mtype = alloc_type (TYPE_OBJFILE (type));
647 smash_to_memberptr_type (mtype, domain, type);
651 /* Return a pointer-to-method type, for a method of type TO_TYPE. */
654 lookup_methodptr_type (struct type *to_type)
658 mtype = alloc_type (TYPE_OBJFILE (to_type));
659 TYPE_TARGET_TYPE (mtype) = to_type;
660 TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type);
661 TYPE_LENGTH (mtype) = cplus_method_ptr_size (to_type);
662 TYPE_CODE (mtype) = TYPE_CODE_METHODPTR;
666 /* Allocate a stub method whose return type is TYPE. This apparently
667 happens for speed of symbol reading, since parsing out the
668 arguments to the method is cpu-intensive, the way we are doing it.
669 So, we will fill in arguments later. This always returns a fresh
673 allocate_stub_method (struct type *type)
677 mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL,
678 TYPE_OBJFILE (type));
679 TYPE_TARGET_TYPE (mtype) = type;
680 /* _DOMAIN_TYPE (mtype) = unknown yet */
684 /* Create a range type using either a blank type supplied in
685 RESULT_TYPE, or creating a new type, inheriting the objfile from
688 Indices will be of type INDEX_TYPE, and will range from LOW_BOUND
689 to HIGH_BOUND, inclusive.
691 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
692 sure it is TYPE_CODE_UNDEF before we bash it into a range type? */
695 create_range_type (struct type *result_type, struct type *index_type,
696 int low_bound, int high_bound)
698 if (result_type == NULL)
699 result_type = alloc_type (TYPE_OBJFILE (index_type));
700 TYPE_CODE (result_type) = TYPE_CODE_RANGE;
701 TYPE_TARGET_TYPE (result_type) = index_type;
702 if (TYPE_STUB (index_type))
703 TYPE_TARGET_STUB (result_type) = 1;
705 TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type));
706 TYPE_NFIELDS (result_type) = 2;
707 TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type,
708 TYPE_NFIELDS (result_type)
709 * sizeof (struct field));
710 TYPE_LOW_BOUND (result_type) = low_bound;
711 TYPE_HIGH_BOUND (result_type) = high_bound;
714 TYPE_UNSIGNED (result_type) = 1;
719 /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type
720 TYPE. Return 1 if type is a range type, 0 if it is discrete (and
721 bounds will fit in LONGEST), or -1 otherwise. */
724 get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp)
726 CHECK_TYPEDEF (type);
727 switch (TYPE_CODE (type))
729 case TYPE_CODE_RANGE:
730 *lowp = TYPE_LOW_BOUND (type);
731 *highp = TYPE_HIGH_BOUND (type);
734 if (TYPE_NFIELDS (type) > 0)
736 /* The enums may not be sorted by value, so search all
740 *lowp = *highp = TYPE_FIELD_BITPOS (type, 0);
741 for (i = 0; i < TYPE_NFIELDS (type); i++)
743 if (TYPE_FIELD_BITPOS (type, i) < *lowp)
744 *lowp = TYPE_FIELD_BITPOS (type, i);
745 if (TYPE_FIELD_BITPOS (type, i) > *highp)
746 *highp = TYPE_FIELD_BITPOS (type, i);
749 /* Set unsigned indicator if warranted. */
752 TYPE_UNSIGNED (type) = 1;
766 if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */
768 if (!TYPE_UNSIGNED (type))
770 *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1));
774 /* ... fall through for unsigned ints ... */
777 /* This round-about calculation is to avoid shifting by
778 TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work
779 if TYPE_LENGTH (type) == sizeof (LONGEST). */
780 *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1);
781 *highp = (*highp - 1) | *highp;
788 /* Create an array type using either a blank type supplied in
789 RESULT_TYPE, or creating a new type, inheriting the objfile from
792 Elements will be of type ELEMENT_TYPE, the indices will be of type
795 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
796 sure it is TYPE_CODE_UNDEF before we bash it into an array
800 create_array_type (struct type *result_type,
801 struct type *element_type,
802 struct type *range_type)
804 LONGEST low_bound, high_bound;
806 if (result_type == NULL)
808 result_type = alloc_type (TYPE_OBJFILE (range_type));
810 TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
811 TYPE_TARGET_TYPE (result_type) = element_type;
812 if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
813 low_bound = high_bound = 0;
814 CHECK_TYPEDEF (element_type);
815 /* Be careful when setting the array length. Ada arrays can be
816 empty arrays with the high_bound being smaller than the low_bound.
817 In such cases, the array length should be zero. */
818 if (high_bound < low_bound)
819 TYPE_LENGTH (result_type) = 0;
821 TYPE_LENGTH (result_type) =
822 TYPE_LENGTH (element_type) * (high_bound - low_bound + 1);
823 TYPE_NFIELDS (result_type) = 1;
824 TYPE_FIELDS (result_type) =
825 (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field));
826 TYPE_INDEX_TYPE (result_type) = range_type;
827 TYPE_VPTR_FIELDNO (result_type) = -1;
829 /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */
830 if (TYPE_LENGTH (result_type) == 0)
831 TYPE_TARGET_STUB (result_type) = 1;
833 return (result_type);
836 /* Create a string type using either a blank type supplied in
837 RESULT_TYPE, or creating a new type. String types are similar
838 enough to array of char types that we can use create_array_type to
839 build the basic type and then bash it into a string type.
841 For fixed length strings, the range type contains 0 as the lower
842 bound and the length of the string minus one as the upper bound.
844 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
845 sure it is TYPE_CODE_UNDEF before we bash it into a string
849 create_string_type (struct type *result_type,
850 struct type *range_type)
852 struct type *string_char_type;
854 string_char_type = language_string_char_type (current_language,
856 result_type = create_array_type (result_type,
859 TYPE_CODE (result_type) = TYPE_CODE_STRING;
860 return (result_type);
864 create_set_type (struct type *result_type, struct type *domain_type)
866 if (result_type == NULL)
868 result_type = alloc_type (TYPE_OBJFILE (domain_type));
870 TYPE_CODE (result_type) = TYPE_CODE_SET;
871 TYPE_NFIELDS (result_type) = 1;
872 TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field));
874 if (!TYPE_STUB (domain_type))
876 LONGEST low_bound, high_bound, bit_length;
877 if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0)
878 low_bound = high_bound = 0;
879 bit_length = high_bound - low_bound + 1;
880 TYPE_LENGTH (result_type)
881 = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT;
883 TYPE_UNSIGNED (result_type) = 1;
885 TYPE_FIELD_TYPE (result_type, 0) = domain_type;
887 return (result_type);
891 append_flags_type_flag (struct type *type, int bitpos, char *name)
893 gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS);
894 gdb_assert (bitpos < TYPE_NFIELDS (type));
895 gdb_assert (bitpos >= 0);
899 TYPE_FIELD_NAME (type, bitpos) = xstrdup (name);
900 TYPE_FIELD_BITPOS (type, bitpos) = bitpos;
904 /* Don't show this field to the user. */
905 TYPE_FIELD_BITPOS (type, bitpos) = -1;
910 init_flags_type (char *name, int length)
912 int nfields = length * TARGET_CHAR_BIT;
915 type = init_type (TYPE_CODE_FLAGS, length,
916 TYPE_FLAG_UNSIGNED, name, NULL);
917 TYPE_NFIELDS (type) = nfields;
918 TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field));
923 /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE
924 and any array types nested inside it. */
927 make_vector_type (struct type *array_type)
929 struct type *inner_array, *elt_type;
932 /* Find the innermost array type, in case the array is
933 multi-dimensional. */
934 inner_array = array_type;
935 while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY)
936 inner_array = TYPE_TARGET_TYPE (inner_array);
938 elt_type = TYPE_TARGET_TYPE (inner_array);
939 if (TYPE_CODE (elt_type) == TYPE_CODE_INT)
941 flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT;
942 elt_type = make_qualified_type (elt_type, flags, NULL);
943 TYPE_TARGET_TYPE (inner_array) = elt_type;
946 TYPE_VECTOR (array_type) = 1;
950 init_vector_type (struct type *elt_type, int n)
952 struct type *array_type;
954 array_type = create_array_type (0, elt_type,
955 create_range_type (0,
958 make_vector_type (array_type);
962 /* Smash TYPE to be a type of pointers to members of DOMAIN with type
963 TO_TYPE. A member pointer is a wierd thing -- it amounts to a
964 typed offset into a struct, e.g. "an int at offset 8". A MEMBER
965 TYPE doesn't include the offset (that's the value of the MEMBER
966 itself), but does include the structure type into which it points
969 When "smashing" the type, we preserve the objfile that the old type
970 pointed to, since we aren't changing where the type is actually
974 smash_to_memberptr_type (struct type *type, struct type *domain,
975 struct type *to_type)
977 struct objfile *objfile;
979 objfile = TYPE_OBJFILE (type);
982 TYPE_OBJFILE (type) = objfile;
983 TYPE_TARGET_TYPE (type) = to_type;
984 TYPE_DOMAIN_TYPE (type) = domain;
985 /* Assume that a data member pointer is the same size as a normal
987 TYPE_LENGTH (type) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
988 TYPE_CODE (type) = TYPE_CODE_MEMBERPTR;
991 /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
992 METHOD just means `function that gets an extra "this" argument'.
994 When "smashing" the type, we preserve the objfile that the old type
995 pointed to, since we aren't changing where the type is actually
999 smash_to_method_type (struct type *type, struct type *domain,
1000 struct type *to_type, struct field *args,
1001 int nargs, int varargs)
1003 struct objfile *objfile;
1005 objfile = TYPE_OBJFILE (type);
1008 TYPE_OBJFILE (type) = objfile;
1009 TYPE_TARGET_TYPE (type) = to_type;
1010 TYPE_DOMAIN_TYPE (type) = domain;
1011 TYPE_FIELDS (type) = args;
1012 TYPE_NFIELDS (type) = nargs;
1014 TYPE_VARARGS (type) = 1;
1015 TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
1016 TYPE_CODE (type) = TYPE_CODE_METHOD;
1019 /* Return a typename for a struct/union/enum type without "struct ",
1020 "union ", or "enum ". If the type has a NULL name, return NULL. */
1023 type_name_no_tag (const struct type *type)
1025 if (TYPE_TAG_NAME (type) != NULL)
1026 return TYPE_TAG_NAME (type);
1028 /* Is there code which expects this to return the name if there is
1029 no tag name? My guess is that this is mainly used for C++ in
1030 cases where the two will always be the same. */
1031 return TYPE_NAME (type);
1034 /* Lookup a typedef or primitive type named NAME, visible in lexical
1035 block BLOCK. If NOERR is nonzero, return zero if NAME is not
1036 suitably defined. */
1039 lookup_typename (char *name, struct block *block, int noerr)
1044 sym = lookup_symbol (name, block, VAR_DOMAIN, 0);
1045 if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF)
1047 tmp = language_lookup_primitive_type_by_name (current_language,
1054 else if (!tmp && noerr)
1060 error (_("No type named %s."), name);
1063 return (SYMBOL_TYPE (sym));
1067 lookup_unsigned_typename (char *name)
1069 char *uns = alloca (strlen (name) + 10);
1071 strcpy (uns, "unsigned ");
1072 strcpy (uns + 9, name);
1073 return (lookup_typename (uns, (struct block *) NULL, 0));
1077 lookup_signed_typename (char *name)
1080 char *uns = alloca (strlen (name) + 8);
1082 strcpy (uns, "signed ");
1083 strcpy (uns + 7, name);
1084 t = lookup_typename (uns, (struct block *) NULL, 1);
1085 /* If we don't find "signed FOO" just try again with plain "FOO". */
1088 return lookup_typename (name, (struct block *) NULL, 0);
1091 /* Lookup a structure type named "struct NAME",
1092 visible in lexical block BLOCK. */
1095 lookup_struct (char *name, struct block *block)
1099 sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
1103 error (_("No struct type named %s."), name);
1105 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT)
1107 error (_("This context has class, union or enum %s, not a struct."),
1110 return (SYMBOL_TYPE (sym));
1113 /* Lookup a union type named "union NAME",
1114 visible in lexical block BLOCK. */
1117 lookup_union (char *name, struct block *block)
1122 sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
1125 error (_("No union type named %s."), name);
1127 t = SYMBOL_TYPE (sym);
1129 if (TYPE_CODE (t) == TYPE_CODE_UNION)
1132 /* C++ unions may come out with TYPE_CODE_CLASS, but we look at
1133 * a further "declared_type" field to discover it is really a union.
1135 if (HAVE_CPLUS_STRUCT (t))
1136 if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION)
1139 /* If we get here, it's not a union. */
1140 error (_("This context has class, struct or enum %s, not a union."),
1145 /* Lookup an enum type named "enum NAME",
1146 visible in lexical block BLOCK. */
1149 lookup_enum (char *name, struct block *block)
1153 sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
1156 error (_("No enum type named %s."), name);
1158 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM)
1160 error (_("This context has class, struct or union %s, not an enum."),
1163 return (SYMBOL_TYPE (sym));
1166 /* Lookup a template type named "template NAME<TYPE>",
1167 visible in lexical block BLOCK. */
1170 lookup_template_type (char *name, struct type *type,
1171 struct block *block)
1174 char *nam = (char *)
1175 alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4);
1178 strcat (nam, TYPE_NAME (type));
1179 strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */
1181 sym = lookup_symbol (nam, block, VAR_DOMAIN, 0);
1185 error (_("No template type named %s."), name);
1187 if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT)
1189 error (_("This context has class, union or enum %s, not a struct."),
1192 return (SYMBOL_TYPE (sym));
1195 /* Given a type TYPE, lookup the type of the component of type named
1198 TYPE can be either a struct or union, or a pointer or reference to
1199 a struct or union. If it is a pointer or reference, its target
1200 type is automatically used. Thus '.' and '->' are interchangable,
1201 as specified for the definitions of the expression element types
1202 STRUCTOP_STRUCT and STRUCTOP_PTR.
1204 If NOERR is nonzero, return zero if NAME is not suitably defined.
1205 If NAME is the name of a baseclass type, return that type. */
1208 lookup_struct_elt_type (struct type *type, char *name, int noerr)
1214 CHECK_TYPEDEF (type);
1215 if (TYPE_CODE (type) != TYPE_CODE_PTR
1216 && TYPE_CODE (type) != TYPE_CODE_REF)
1218 type = TYPE_TARGET_TYPE (type);
1221 if (TYPE_CODE (type) != TYPE_CODE_STRUCT
1222 && TYPE_CODE (type) != TYPE_CODE_UNION)
1224 target_terminal_ours ();
1225 gdb_flush (gdb_stdout);
1226 fprintf_unfiltered (gdb_stderr, "Type ");
1227 type_print (type, "", gdb_stderr, -1);
1228 error (_(" is not a structure or union type."));
1232 /* FIXME: This change put in by Michael seems incorrect for the case
1233 where the structure tag name is the same as the member name.
1234 I.E. when doing "ptype bell->bar" for "struct foo { int bar; int
1235 foo; } bell;" Disabled by fnf. */
1239 typename = type_name_no_tag (type);
1240 if (typename != NULL && strcmp (typename, name) == 0)
1245 for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--)
1247 char *t_field_name = TYPE_FIELD_NAME (type, i);
1249 if (t_field_name && (strcmp_iw (t_field_name, name) == 0))
1251 return TYPE_FIELD_TYPE (type, i);
1255 /* OK, it's not in this class. Recursively check the baseclasses. */
1256 for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
1260 t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1);
1272 target_terminal_ours ();
1273 gdb_flush (gdb_stdout);
1274 fprintf_unfiltered (gdb_stderr, "Type ");
1275 type_print (type, "", gdb_stderr, -1);
1276 fprintf_unfiltered (gdb_stderr, " has no component named ");
1277 fputs_filtered (name, gdb_stderr);
1279 return (struct type *) -1; /* For lint */
1282 /* Lookup the vptr basetype/fieldno values for TYPE.
1283 If found store vptr_basetype in *BASETYPEP if non-NULL, and return
1284 vptr_fieldno. Also, if found and basetype is from the same objfile,
1286 If not found, return -1 and ignore BASETYPEP.
1287 Callers should be aware that in some cases (for example,
1288 the type or one of its baseclasses is a stub type and we are
1289 debugging a .o file), this function will not be able to find the
1290 virtual function table pointer, and vptr_fieldno will remain -1 and
1291 vptr_basetype will remain NULL or incomplete. */
1294 get_vptr_fieldno (struct type *type, struct type **basetypep)
1296 CHECK_TYPEDEF (type);
1298 if (TYPE_VPTR_FIELDNO (type) < 0)
1302 /* We must start at zero in case the first (and only) baseclass
1303 is virtual (and hence we cannot share the table pointer). */
1304 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
1306 struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
1308 struct type *basetype;
1310 fieldno = get_vptr_fieldno (baseclass, &basetype);
1313 /* If the type comes from a different objfile we can't cache
1314 it, it may have a different lifetime. PR 2384 */
1315 if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype))
1317 TYPE_VPTR_FIELDNO (type) = fieldno;
1318 TYPE_VPTR_BASETYPE (type) = basetype;
1321 *basetypep = basetype;
1332 *basetypep = TYPE_VPTR_BASETYPE (type);
1333 return TYPE_VPTR_FIELDNO (type);
1337 /* Find the method and field indices for the destructor in class type T.
1338 Return 1 if the destructor was found, otherwise, return 0. */
1341 get_destructor_fn_field (struct type *t,
1347 for (i = 0; i < TYPE_NFN_FIELDS (t); i++)
1350 struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
1352 for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++)
1354 if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0)
1366 stub_noname_complaint (void)
1368 complaint (&symfile_complaints, _("stub type has NULL name"));
1371 /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989.
1373 If this is a stubbed struct (i.e. declared as struct foo *), see if
1374 we can find a full definition in some other file. If so, copy this
1375 definition, so we can use it in future. There used to be a comment
1376 (but not any code) that if we don't find a full definition, we'd
1377 set a flag so we don't spend time in the future checking the same
1378 type. That would be a mistake, though--we might load in more
1379 symbols which contain a full definition for the type.
1381 This used to be coded as a macro, but I don't think it is called
1382 often enough to merit such treatment. */
1384 /* Find the real type of TYPE. This function returns the real type,
1385 after removing all layers of typedefs and completing opaque or stub
1386 types. Completion changes the TYPE argument, but stripping of
1387 typedefs does not. */
1390 check_typedef (struct type *type)
1392 struct type *orig_type = type;
1393 int is_const, is_volatile;
1397 while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
1399 if (!TYPE_TARGET_TYPE (type))
1404 /* It is dangerous to call lookup_symbol if we are currently
1405 reading a symtab. Infinite recursion is one danger. */
1406 if (currently_reading_symtab)
1409 name = type_name_no_tag (type);
1410 /* FIXME: shouldn't we separately check the TYPE_NAME and
1411 the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or
1412 VAR_DOMAIN as appropriate? (this code was written before
1413 TYPE_NAME and TYPE_TAG_NAME were separate). */
1416 stub_noname_complaint ();
1419 sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0);
1421 TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym);
1422 else /* TYPE_CODE_UNDEF */
1423 TYPE_TARGET_TYPE (type) = alloc_type (NULL);
1425 type = TYPE_TARGET_TYPE (type);
1428 is_const = TYPE_CONST (type);
1429 is_volatile = TYPE_VOLATILE (type);
1431 /* If this is a struct/class/union with no fields, then check
1432 whether a full definition exists somewhere else. This is for
1433 systems where a type definition with no fields is issued for such
1434 types, instead of identifying them as stub types in the first
1437 if (TYPE_IS_OPAQUE (type)
1438 && opaque_type_resolution
1439 && !currently_reading_symtab)
1441 char *name = type_name_no_tag (type);
1442 struct type *newtype;
1445 stub_noname_complaint ();
1448 newtype = lookup_transparent_type (name);
1452 /* If the resolved type and the stub are in the same
1453 objfile, then replace the stub type with the real deal.
1454 But if they're in separate objfiles, leave the stub
1455 alone; we'll just look up the transparent type every time
1456 we call check_typedef. We can't create pointers between
1457 types allocated to different objfiles, since they may
1458 have different lifetimes. Trying to copy NEWTYPE over to
1459 TYPE's objfile is pointless, too, since you'll have to
1460 move over any other types NEWTYPE refers to, which could
1461 be an unbounded amount of stuff. */
1462 if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type))
1463 make_cv_type (is_const, is_volatile, newtype, &type);
1468 /* Otherwise, rely on the stub flag being set for opaque/stubbed
1470 else if (TYPE_STUB (type) && !currently_reading_symtab)
1472 char *name = type_name_no_tag (type);
1473 /* FIXME: shouldn't we separately check the TYPE_NAME and the
1474 TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN
1475 as appropriate? (this code was written before TYPE_NAME and
1476 TYPE_TAG_NAME were separate). */
1480 stub_noname_complaint ();
1483 sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0);
1486 /* Same as above for opaque types, we can replace the stub
1487 with the complete type only if they are int the same
1489 if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type))
1490 make_cv_type (is_const, is_volatile,
1491 SYMBOL_TYPE (sym), &type);
1493 type = SYMBOL_TYPE (sym);
1497 if (TYPE_TARGET_STUB (type))
1499 struct type *range_type;
1500 struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));
1502 if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type))
1506 else if (TYPE_CODE (type) == TYPE_CODE_ARRAY
1507 && TYPE_NFIELDS (type) == 1
1508 && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type))
1509 == TYPE_CODE_RANGE))
1511 /* Now recompute the length of the array type, based on its
1512 number of elements and the target type's length.
1513 Watch out for Ada null Ada arrays where the high bound
1514 is smaller than the low bound. */
1515 const int low_bound = TYPE_LOW_BOUND (range_type);
1516 const int high_bound = TYPE_HIGH_BOUND (range_type);
1519 if (high_bound < low_bound)
1522 nb_elements = high_bound - low_bound + 1;
1524 TYPE_LENGTH (type) = nb_elements * TYPE_LENGTH (target_type);
1525 TYPE_TARGET_STUB (type) = 0;
1527 else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
1529 TYPE_LENGTH (type) = TYPE_LENGTH (target_type);
1530 TYPE_TARGET_STUB (type) = 0;
1533 /* Cache TYPE_LENGTH for future use. */
1534 TYPE_LENGTH (orig_type) = TYPE_LENGTH (type);
1538 /* Parse a type expression in the string [P..P+LENGTH). If an error
1539 occurs, silently return builtin_type_void. */
1541 static struct type *
1542 safe_parse_type (char *p, int length)
1544 struct ui_file *saved_gdb_stderr;
1547 /* Suppress error messages. */
1548 saved_gdb_stderr = gdb_stderr;
1549 gdb_stderr = ui_file_new ();
1551 /* Call parse_and_eval_type() without fear of longjmp()s. */
1552 if (!gdb_parse_and_eval_type (p, length, &type))
1553 type = builtin_type_void;
1555 /* Stop suppressing error messages. */
1556 ui_file_delete (gdb_stderr);
1557 gdb_stderr = saved_gdb_stderr;
1562 /* Ugly hack to convert method stubs into method types.
1564 He ain't kiddin'. This demangles the name of the method into a
1565 string including argument types, parses out each argument type,
1566 generates a string casting a zero to that type, evaluates the
1567 string, and stuffs the resulting type into an argtype vector!!!
1568 Then it knows the type of the whole function (including argument
1569 types for overloading), which info used to be in the stab's but was
1570 removed to hack back the space required for them. */
1573 check_stub_method (struct type *type, int method_id, int signature_id)
1576 char *mangled_name = gdb_mangle_name (type, method_id, signature_id);
1577 char *demangled_name = cplus_demangle (mangled_name,
1578 DMGL_PARAMS | DMGL_ANSI);
1579 char *argtypetext, *p;
1580 int depth = 0, argcount = 1;
1581 struct field *argtypes;
1584 /* Make sure we got back a function string that we can use. */
1586 p = strchr (demangled_name, '(');
1590 if (demangled_name == NULL || p == NULL)
1591 error (_("Internal: Cannot demangle mangled name `%s'."),
1594 /* Now, read in the parameters that define this type. */
1599 if (*p == '(' || *p == '<')
1603 else if (*p == ')' || *p == '>')
1607 else if (*p == ',' && depth == 0)
1615 /* If we read one argument and it was ``void'', don't count it. */
1616 if (strncmp (argtypetext, "(void)", 6) == 0)
1619 /* We need one extra slot, for the THIS pointer. */
1621 argtypes = (struct field *)
1622 TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field));
1625 /* Add THIS pointer for non-static methods. */
1626 f = TYPE_FN_FIELDLIST1 (type, method_id);
1627 if (TYPE_FN_FIELD_STATIC_P (f, signature_id))
1631 argtypes[0].type = lookup_pointer_type (type);
1635 if (*p != ')') /* () means no args, skip while */
1640 if (depth <= 0 && (*p == ',' || *p == ')'))
1642 /* Avoid parsing of ellipsis, they will be handled below.
1643 Also avoid ``void'' as above. */
1644 if (strncmp (argtypetext, "...", p - argtypetext) != 0
1645 && strncmp (argtypetext, "void", p - argtypetext) != 0)
1647 argtypes[argcount].type =
1648 safe_parse_type (argtypetext, p - argtypetext);
1651 argtypetext = p + 1;
1654 if (*p == '(' || *p == '<')
1658 else if (*p == ')' || *p == '>')
1667 TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name;
1669 /* Now update the old "stub" type into a real type. */
1670 mtype = TYPE_FN_FIELD_TYPE (f, signature_id);
1671 TYPE_DOMAIN_TYPE (mtype) = type;
1672 TYPE_FIELDS (mtype) = argtypes;
1673 TYPE_NFIELDS (mtype) = argcount;
1674 TYPE_STUB (mtype) = 0;
1675 TYPE_FN_FIELD_STUB (f, signature_id) = 0;
1677 TYPE_VARARGS (mtype) = 1;
1679 xfree (demangled_name);
1682 /* This is the external interface to check_stub_method, above. This
1683 function unstubs all of the signatures for TYPE's METHOD_ID method
1684 name. After calling this function TYPE_FN_FIELD_STUB will be
1685 cleared for each signature and TYPE_FN_FIELDLIST_NAME will be
1688 This function unfortunately can not die until stabs do. */
1691 check_stub_method_group (struct type *type, int method_id)
1693 int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id);
1694 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
1695 int j, found_stub = 0;
1697 for (j = 0; j < len; j++)
1698 if (TYPE_FN_FIELD_STUB (f, j))
1701 check_stub_method (type, method_id, j);
1704 /* GNU v3 methods with incorrect names were corrected when we read
1705 in type information, because it was cheaper to do it then. The
1706 only GNU v2 methods with incorrect method names are operators and
1707 destructors; destructors were also corrected when we read in type
1710 Therefore the only thing we need to handle here are v2 operator
1712 if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0)
1715 char dem_opname[256];
1717 ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type,
1719 dem_opname, DMGL_ANSI);
1721 ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type,
1725 TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname);
1729 const struct cplus_struct_type cplus_struct_default;
1732 allocate_cplus_struct_type (struct type *type)
1734 if (!HAVE_CPLUS_STRUCT (type))
1736 TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *)
1737 TYPE_ALLOC (type, sizeof (struct cplus_struct_type));
1738 *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default;
1742 /* Helper function to initialize the standard scalar types.
1744 If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy of
1745 the string pointed to by name in the objfile_obstack for that
1746 objfile, and initialize the type name to that copy. There are
1747 places (mipsread.c in particular, where init_type is called with a
1748 NULL value for NAME). */
1751 init_type (enum type_code code, int length, int flags,
1752 char *name, struct objfile *objfile)
1756 type = alloc_type (objfile);
1757 TYPE_CODE (type) = code;
1758 TYPE_LENGTH (type) = length;
1760 gdb_assert (!(flags & (TYPE_FLAG_MIN - 1)));
1761 if (flags & TYPE_FLAG_UNSIGNED)
1762 TYPE_UNSIGNED (type) = 1;
1763 if (flags & TYPE_FLAG_NOSIGN)
1764 TYPE_NOSIGN (type) = 1;
1765 if (flags & TYPE_FLAG_STUB)
1766 TYPE_STUB (type) = 1;
1767 if (flags & TYPE_FLAG_TARGET_STUB)
1768 TYPE_TARGET_STUB (type) = 1;
1769 if (flags & TYPE_FLAG_STATIC)
1770 TYPE_STATIC (type) = 1;
1771 if (flags & TYPE_FLAG_PROTOTYPED)
1772 TYPE_PROTOTYPED (type) = 1;
1773 if (flags & TYPE_FLAG_INCOMPLETE)
1774 TYPE_INCOMPLETE (type) = 1;
1775 if (flags & TYPE_FLAG_VARARGS)
1776 TYPE_VARARGS (type) = 1;
1777 if (flags & TYPE_FLAG_VECTOR)
1778 TYPE_VECTOR (type) = 1;
1779 if (flags & TYPE_FLAG_STUB_SUPPORTED)
1780 TYPE_STUB_SUPPORTED (type) = 1;
1781 if (flags & TYPE_FLAG_NOTTEXT)
1782 TYPE_NOTTEXT (type) = 1;
1783 if (flags & TYPE_FLAG_FIXED_INSTANCE)
1784 TYPE_FIXED_INSTANCE (type) = 1;
1786 if ((name != NULL) && (objfile != NULL))
1788 TYPE_NAME (type) = obsavestring (name, strlen (name),
1789 &objfile->objfile_obstack);
1793 TYPE_NAME (type) = name;
1798 if (name && strcmp (name, "char") == 0)
1799 TYPE_NOSIGN (type) = 1;
1801 if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION
1802 || code == TYPE_CODE_NAMESPACE)
1804 INIT_CPLUS_SPECIFIC (type);
1809 /* Helper function. Create an empty composite type. */
1812 init_composite_type (char *name, enum type_code code)
1815 gdb_assert (code == TYPE_CODE_STRUCT
1816 || code == TYPE_CODE_UNION);
1817 t = init_type (code, 0, 0, NULL, NULL);
1818 TYPE_TAG_NAME (t) = name;
1822 /* Helper function. Append a field to a composite type. */
1825 append_composite_type_field (struct type *t, char *name,
1829 TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1;
1830 TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t),
1831 sizeof (struct field) * TYPE_NFIELDS (t));
1832 f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]);
1833 memset (f, 0, sizeof f[0]);
1834 FIELD_TYPE (f[0]) = field;
1835 FIELD_NAME (f[0]) = name;
1836 if (TYPE_CODE (t) == TYPE_CODE_UNION)
1838 if (TYPE_LENGTH (t) < TYPE_LENGTH (field))
1839 TYPE_LENGTH (t) = TYPE_LENGTH (field);
1841 else if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
1843 TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field);
1844 if (TYPE_NFIELDS (t) > 1)
1845 FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1])
1846 + (TYPE_LENGTH (FIELD_TYPE (f[-1]))
1847 * TARGET_CHAR_BIT));
1852 can_dereference (struct type *t)
1854 /* FIXME: Should we return true for references as well as
1859 && TYPE_CODE (t) == TYPE_CODE_PTR
1860 && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID);
1864 is_integral_type (struct type *t)
1869 && ((TYPE_CODE (t) == TYPE_CODE_INT)
1870 || (TYPE_CODE (t) == TYPE_CODE_ENUM)
1871 || (TYPE_CODE (t) == TYPE_CODE_FLAGS)
1872 || (TYPE_CODE (t) == TYPE_CODE_CHAR)
1873 || (TYPE_CODE (t) == TYPE_CODE_RANGE)
1874 || (TYPE_CODE (t) == TYPE_CODE_BOOL)));
1877 /* Check whether BASE is an ancestor or base class or DCLASS
1878 Return 1 if so, and 0 if not.
1879 Note: callers may want to check for identity of the types before
1880 calling this function -- identical types are considered to satisfy
1881 the ancestor relationship even if they're identical. */
1884 is_ancestor (struct type *base, struct type *dclass)
1888 CHECK_TYPEDEF (base);
1889 CHECK_TYPEDEF (dclass);
1893 if (TYPE_NAME (base) && TYPE_NAME (dclass)
1894 && !strcmp (TYPE_NAME (base), TYPE_NAME (dclass)))
1897 for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
1898 if (is_ancestor (base, TYPE_BASECLASS (dclass, i)))
1906 /* Functions for overload resolution begin here */
1908 /* Compare two badness vectors A and B and return the result.
1909 0 => A and B are identical
1910 1 => A and B are incomparable
1911 2 => A is better than B
1912 3 => A is worse than B */
1915 compare_badness (struct badness_vector *a, struct badness_vector *b)
1919 short found_pos = 0; /* any positives in c? */
1920 short found_neg = 0; /* any negatives in c? */
1922 /* differing lengths => incomparable */
1923 if (a->length != b->length)
1926 /* Subtract b from a */
1927 for (i = 0; i < a->length; i++)
1929 tmp = a->rank[i] - b->rank[i];
1939 return 1; /* incomparable */
1941 return 3; /* A > B */
1947 return 2; /* A < B */
1949 return 0; /* A == B */
1953 /* Rank a function by comparing its parameter types (PARMS, length
1954 NPARMS), to the types of an argument list (ARGS, length NARGS).
1955 Return a pointer to a badness vector. This has NARGS + 1
1958 struct badness_vector *
1959 rank_function (struct type **parms, int nparms,
1960 struct type **args, int nargs)
1963 struct badness_vector *bv;
1964 int min_len = nparms < nargs ? nparms : nargs;
1966 bv = xmalloc (sizeof (struct badness_vector));
1967 bv->length = nargs + 1; /* add 1 for the length-match rank */
1968 bv->rank = xmalloc ((nargs + 1) * sizeof (int));
1970 /* First compare the lengths of the supplied lists.
1971 If there is a mismatch, set it to a high value. */
1973 /* pai/1997-06-03 FIXME: when we have debug info about default
1974 arguments and ellipsis parameter lists, we should consider those
1975 and rank the length-match more finely. */
1977 LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0;
1979 /* Now rank all the parameters of the candidate function */
1980 for (i = 1; i <= min_len; i++)
1981 bv->rank[i] = rank_one_type (parms[i-1], args[i-1]);
1983 /* If more arguments than parameters, add dummy entries */
1984 for (i = min_len + 1; i <= nargs; i++)
1985 bv->rank[i] = TOO_FEW_PARAMS_BADNESS;
1990 /* Compare the names of two integer types, assuming that any sign
1991 qualifiers have been checked already. We do it this way because
1992 there may be an "int" in the name of one of the types. */
1995 integer_types_same_name_p (const char *first, const char *second)
1997 int first_p, second_p;
1999 /* If both are shorts, return 1; if neither is a short, keep
2001 first_p = (strstr (first, "short") != NULL);
2002 second_p = (strstr (second, "short") != NULL);
2003 if (first_p && second_p)
2005 if (first_p || second_p)
2008 /* Likewise for long. */
2009 first_p = (strstr (first, "long") != NULL);
2010 second_p = (strstr (second, "long") != NULL);
2011 if (first_p && second_p)
2013 if (first_p || second_p)
2016 /* Likewise for char. */
2017 first_p = (strstr (first, "char") != NULL);
2018 second_p = (strstr (second, "char") != NULL);
2019 if (first_p && second_p)
2021 if (first_p || second_p)
2024 /* They must both be ints. */
2028 /* Compare one type (PARM) for compatibility with another (ARG).
2029 * PARM is intended to be the parameter type of a function; and
2030 * ARG is the supplied argument's type. This function tests if
2031 * the latter can be converted to the former.
2033 * Return 0 if they are identical types;
2034 * Otherwise, return an integer which corresponds to how compatible
2035 * PARM is to ARG. The higher the return value, the worse the match.
2036 * Generally the "bad" conversions are all uniformly assigned a 100. */
2039 rank_one_type (struct type *parm, struct type *arg)
2041 /* Identical type pointers. */
2042 /* However, this still doesn't catch all cases of same type for arg
2043 and param. The reason is that builtin types are different from
2044 the same ones constructed from the object. */
2048 /* Resolve typedefs */
2049 if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF)
2050 parm = check_typedef (parm);
2051 if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF)
2052 arg = check_typedef (arg);
2055 Well, damnit, if the names are exactly the same, I'll say they
2056 are exactly the same. This happens when we generate method
2057 stubs. The types won't point to the same address, but they
2058 really are the same.
2061 if (TYPE_NAME (parm) && TYPE_NAME (arg)
2062 && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg)))
2065 /* Check if identical after resolving typedefs. */
2069 /* See through references, since we can almost make non-references
2071 if (TYPE_CODE (arg) == TYPE_CODE_REF)
2072 return (rank_one_type (parm, TYPE_TARGET_TYPE (arg))
2073 + REFERENCE_CONVERSION_BADNESS);
2074 if (TYPE_CODE (parm) == TYPE_CODE_REF)
2075 return (rank_one_type (TYPE_TARGET_TYPE (parm), arg)
2076 + REFERENCE_CONVERSION_BADNESS);
2078 /* Debugging only. */
2079 fprintf_filtered (gdb_stderr,
2080 "------ Arg is %s [%d], parm is %s [%d]\n",
2081 TYPE_NAME (arg), TYPE_CODE (arg),
2082 TYPE_NAME (parm), TYPE_CODE (parm));
2084 /* x -> y means arg of type x being supplied for parameter of type y */
2086 switch (TYPE_CODE (parm))
2089 switch (TYPE_CODE (arg))
2092 if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID)
2093 return VOID_PTR_CONVERSION_BADNESS;
2095 return rank_one_type (TYPE_TARGET_TYPE (parm),
2096 TYPE_TARGET_TYPE (arg));
2097 case TYPE_CODE_ARRAY:
2098 return rank_one_type (TYPE_TARGET_TYPE (parm),
2099 TYPE_TARGET_TYPE (arg));
2100 case TYPE_CODE_FUNC:
2101 return rank_one_type (TYPE_TARGET_TYPE (parm), arg);
2103 case TYPE_CODE_ENUM:
2104 case TYPE_CODE_FLAGS:
2105 case TYPE_CODE_CHAR:
2106 case TYPE_CODE_RANGE:
2107 case TYPE_CODE_BOOL:
2108 return POINTER_CONVERSION_BADNESS;
2110 return INCOMPATIBLE_TYPE_BADNESS;
2112 case TYPE_CODE_ARRAY:
2113 switch (TYPE_CODE (arg))
2116 case TYPE_CODE_ARRAY:
2117 return rank_one_type (TYPE_TARGET_TYPE (parm),
2118 TYPE_TARGET_TYPE (arg));
2120 return INCOMPATIBLE_TYPE_BADNESS;
2122 case TYPE_CODE_FUNC:
2123 switch (TYPE_CODE (arg))
2125 case TYPE_CODE_PTR: /* funcptr -> func */
2126 return rank_one_type (parm, TYPE_TARGET_TYPE (arg));
2128 return INCOMPATIBLE_TYPE_BADNESS;
2131 switch (TYPE_CODE (arg))
2134 if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm))
2136 /* Deal with signed, unsigned, and plain chars and
2137 signed and unsigned ints. */
2138 if (TYPE_NOSIGN (parm))
2140 /* This case only for character types */
2141 if (TYPE_NOSIGN (arg))
2142 return 0; /* plain char -> plain char */
2143 else /* signed/unsigned char -> plain char */
2144 return INTEGER_CONVERSION_BADNESS;
2146 else if (TYPE_UNSIGNED (parm))
2148 if (TYPE_UNSIGNED (arg))
2150 /* unsigned int -> unsigned int, or
2151 unsigned long -> unsigned long */
2152 if (integer_types_same_name_p (TYPE_NAME (parm),
2155 else if (integer_types_same_name_p (TYPE_NAME (arg),
2157 && integer_types_same_name_p (TYPE_NAME (parm),
2159 return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */
2161 return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */
2165 if (integer_types_same_name_p (TYPE_NAME (arg),
2167 && integer_types_same_name_p (TYPE_NAME (parm),
2169 return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */
2171 return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */
2174 else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg))
2176 if (integer_types_same_name_p (TYPE_NAME (parm),
2179 else if (integer_types_same_name_p (TYPE_NAME (arg),
2181 && integer_types_same_name_p (TYPE_NAME (parm),
2183 return INTEGER_PROMOTION_BADNESS;
2185 return INTEGER_CONVERSION_BADNESS;
2188 return INTEGER_CONVERSION_BADNESS;
2190 else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2191 return INTEGER_PROMOTION_BADNESS;
2193 return INTEGER_CONVERSION_BADNESS;
2194 case TYPE_CODE_ENUM:
2195 case TYPE_CODE_FLAGS:
2196 case TYPE_CODE_CHAR:
2197 case TYPE_CODE_RANGE:
2198 case TYPE_CODE_BOOL:
2199 return INTEGER_PROMOTION_BADNESS;
2201 return INT_FLOAT_CONVERSION_BADNESS;
2203 return NS_POINTER_CONVERSION_BADNESS;
2205 return INCOMPATIBLE_TYPE_BADNESS;
2208 case TYPE_CODE_ENUM:
2209 switch (TYPE_CODE (arg))
2212 case TYPE_CODE_CHAR:
2213 case TYPE_CODE_RANGE:
2214 case TYPE_CODE_BOOL:
2215 case TYPE_CODE_ENUM:
2216 return INTEGER_CONVERSION_BADNESS;
2218 return INT_FLOAT_CONVERSION_BADNESS;
2220 return INCOMPATIBLE_TYPE_BADNESS;
2223 case TYPE_CODE_CHAR:
2224 switch (TYPE_CODE (arg))
2226 case TYPE_CODE_RANGE:
2227 case TYPE_CODE_BOOL:
2228 case TYPE_CODE_ENUM:
2229 return INTEGER_CONVERSION_BADNESS;
2231 return INT_FLOAT_CONVERSION_BADNESS;
2233 if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm))
2234 return INTEGER_CONVERSION_BADNESS;
2235 else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2236 return INTEGER_PROMOTION_BADNESS;
2237 /* >>> !! else fall through !! <<< */
2238 case TYPE_CODE_CHAR:
2239 /* Deal with signed, unsigned, and plain chars for C++ and
2240 with int cases falling through from previous case. */
2241 if (TYPE_NOSIGN (parm))
2243 if (TYPE_NOSIGN (arg))
2246 return INTEGER_CONVERSION_BADNESS;
2248 else if (TYPE_UNSIGNED (parm))
2250 if (TYPE_UNSIGNED (arg))
2253 return INTEGER_PROMOTION_BADNESS;
2255 else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg))
2258 return INTEGER_CONVERSION_BADNESS;
2260 return INCOMPATIBLE_TYPE_BADNESS;
2263 case TYPE_CODE_RANGE:
2264 switch (TYPE_CODE (arg))
2267 case TYPE_CODE_CHAR:
2268 case TYPE_CODE_RANGE:
2269 case TYPE_CODE_BOOL:
2270 case TYPE_CODE_ENUM:
2271 return INTEGER_CONVERSION_BADNESS;
2273 return INT_FLOAT_CONVERSION_BADNESS;
2275 return INCOMPATIBLE_TYPE_BADNESS;
2278 case TYPE_CODE_BOOL:
2279 switch (TYPE_CODE (arg))
2282 case TYPE_CODE_CHAR:
2283 case TYPE_CODE_RANGE:
2284 case TYPE_CODE_ENUM:
2287 return BOOLEAN_CONVERSION_BADNESS;
2288 case TYPE_CODE_BOOL:
2291 return INCOMPATIBLE_TYPE_BADNESS;
2295 switch (TYPE_CODE (arg))
2298 if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
2299 return FLOAT_PROMOTION_BADNESS;
2300 else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm))
2303 return FLOAT_CONVERSION_BADNESS;
2305 case TYPE_CODE_BOOL:
2306 case TYPE_CODE_ENUM:
2307 case TYPE_CODE_RANGE:
2308 case TYPE_CODE_CHAR:
2309 return INT_FLOAT_CONVERSION_BADNESS;
2311 return INCOMPATIBLE_TYPE_BADNESS;
2314 case TYPE_CODE_COMPLEX:
2315 switch (TYPE_CODE (arg))
2316 { /* Strictly not needed for C++, but... */
2318 return FLOAT_PROMOTION_BADNESS;
2319 case TYPE_CODE_COMPLEX:
2322 return INCOMPATIBLE_TYPE_BADNESS;
2325 case TYPE_CODE_STRUCT:
2326 /* currently same as TYPE_CODE_CLASS */
2327 switch (TYPE_CODE (arg))
2329 case TYPE_CODE_STRUCT:
2330 /* Check for derivation */
2331 if (is_ancestor (parm, arg))
2332 return BASE_CONVERSION_BADNESS;
2333 /* else fall through */
2335 return INCOMPATIBLE_TYPE_BADNESS;
2338 case TYPE_CODE_UNION:
2339 switch (TYPE_CODE (arg))
2341 case TYPE_CODE_UNION:
2343 return INCOMPATIBLE_TYPE_BADNESS;
2346 case TYPE_CODE_MEMBERPTR:
2347 switch (TYPE_CODE (arg))
2350 return INCOMPATIBLE_TYPE_BADNESS;
2353 case TYPE_CODE_METHOD:
2354 switch (TYPE_CODE (arg))
2358 return INCOMPATIBLE_TYPE_BADNESS;
2362 switch (TYPE_CODE (arg))
2366 return INCOMPATIBLE_TYPE_BADNESS;
2371 switch (TYPE_CODE (arg))
2375 return rank_one_type (TYPE_FIELD_TYPE (parm, 0),
2376 TYPE_FIELD_TYPE (arg, 0));
2378 return INCOMPATIBLE_TYPE_BADNESS;
2381 case TYPE_CODE_VOID:
2383 return INCOMPATIBLE_TYPE_BADNESS;
2384 } /* switch (TYPE_CODE (arg)) */
2388 /* End of functions for overload resolution */
2391 print_bit_vector (B_TYPE *bits, int nbits)
2395 for (bitno = 0; bitno < nbits; bitno++)
2397 if ((bitno % 8) == 0)
2399 puts_filtered (" ");
2401 if (B_TST (bits, bitno))
2402 printf_filtered (("1"));
2404 printf_filtered (("0"));
2408 /* Note the first arg should be the "this" pointer, we may not want to
2409 include it since we may get into a infinitely recursive
2413 print_arg_types (struct field *args, int nargs, int spaces)
2419 for (i = 0; i < nargs; i++)
2420 recursive_dump_type (args[i].type, spaces + 2);
2425 field_is_static (struct field *f)
2427 /* "static" fields are the fields whose location is not relative
2428 to the address of the enclosing struct. It would be nice to
2429 have a dedicated flag that would be set for static fields when
2430 the type is being created. But in practice, checking the field
2431 loc_kind should give us an accurate answer (at least as long as
2432 we assume that DWARF block locations are not going to be used
2433 for static fields). FIXME? */
2434 return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME
2435 || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR);
2439 dump_fn_fieldlists (struct type *type, int spaces)
2445 printfi_filtered (spaces, "fn_fieldlists ");
2446 gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout);
2447 printf_filtered ("\n");
2448 for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++)
2450 f = TYPE_FN_FIELDLIST1 (type, method_idx);
2451 printfi_filtered (spaces + 2, "[%d] name '%s' (",
2453 TYPE_FN_FIELDLIST_NAME (type, method_idx));
2454 gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx),
2456 printf_filtered (_(") length %d\n"),
2457 TYPE_FN_FIELDLIST_LENGTH (type, method_idx));
2458 for (overload_idx = 0;
2459 overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx);
2462 printfi_filtered (spaces + 4, "[%d] physname '%s' (",
2464 TYPE_FN_FIELD_PHYSNAME (f, overload_idx));
2465 gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx),
2467 printf_filtered (")\n");
2468 printfi_filtered (spaces + 8, "type ");
2469 gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx),
2471 printf_filtered ("\n");
2473 recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx),
2476 printfi_filtered (spaces + 8, "args ");
2477 gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx),
2479 printf_filtered ("\n");
2481 print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx),
2482 TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f,
2485 printfi_filtered (spaces + 8, "fcontext ");
2486 gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx),
2488 printf_filtered ("\n");
2490 printfi_filtered (spaces + 8, "is_const %d\n",
2491 TYPE_FN_FIELD_CONST (f, overload_idx));
2492 printfi_filtered (spaces + 8, "is_volatile %d\n",
2493 TYPE_FN_FIELD_VOLATILE (f, overload_idx));
2494 printfi_filtered (spaces + 8, "is_private %d\n",
2495 TYPE_FN_FIELD_PRIVATE (f, overload_idx));
2496 printfi_filtered (spaces + 8, "is_protected %d\n",
2497 TYPE_FN_FIELD_PROTECTED (f, overload_idx));
2498 printfi_filtered (spaces + 8, "is_stub %d\n",
2499 TYPE_FN_FIELD_STUB (f, overload_idx));
2500 printfi_filtered (spaces + 8, "voffset %u\n",
2501 TYPE_FN_FIELD_VOFFSET (f, overload_idx));
2507 print_cplus_stuff (struct type *type, int spaces)
2509 printfi_filtered (spaces, "n_baseclasses %d\n",
2510 TYPE_N_BASECLASSES (type));
2511 printfi_filtered (spaces, "nfn_fields %d\n",
2512 TYPE_NFN_FIELDS (type));
2513 printfi_filtered (spaces, "nfn_fields_total %d\n",
2514 TYPE_NFN_FIELDS_TOTAL (type));
2515 if (TYPE_N_BASECLASSES (type) > 0)
2517 printfi_filtered (spaces, "virtual_field_bits (%d bits at *",
2518 TYPE_N_BASECLASSES (type));
2519 gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type),
2521 printf_filtered (")");
2523 print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type),
2524 TYPE_N_BASECLASSES (type));
2525 puts_filtered ("\n");
2527 if (TYPE_NFIELDS (type) > 0)
2529 if (TYPE_FIELD_PRIVATE_BITS (type) != NULL)
2531 printfi_filtered (spaces,
2532 "private_field_bits (%d bits at *",
2533 TYPE_NFIELDS (type));
2534 gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type),
2536 printf_filtered (")");
2537 print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type),
2538 TYPE_NFIELDS (type));
2539 puts_filtered ("\n");
2541 if (TYPE_FIELD_PROTECTED_BITS (type) != NULL)
2543 printfi_filtered (spaces,
2544 "protected_field_bits (%d bits at *",
2545 TYPE_NFIELDS (type));
2546 gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type),
2548 printf_filtered (")");
2549 print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type),
2550 TYPE_NFIELDS (type));
2551 puts_filtered ("\n");
2554 if (TYPE_NFN_FIELDS (type) > 0)
2556 dump_fn_fieldlists (type, spaces);
2560 static struct obstack dont_print_type_obstack;
2563 recursive_dump_type (struct type *type, int spaces)
2568 obstack_begin (&dont_print_type_obstack, 0);
2570 if (TYPE_NFIELDS (type) > 0
2571 || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0))
2573 struct type **first_dont_print
2574 = (struct type **) obstack_base (&dont_print_type_obstack);
2576 int i = (struct type **)
2577 obstack_next_free (&dont_print_type_obstack) - first_dont_print;
2581 if (type == first_dont_print[i])
2583 printfi_filtered (spaces, "type node ");
2584 gdb_print_host_address (type, gdb_stdout);
2585 printf_filtered (_(" <same as already seen type>\n"));
2590 obstack_ptr_grow (&dont_print_type_obstack, type);
2593 printfi_filtered (spaces, "type node ");
2594 gdb_print_host_address (type, gdb_stdout);
2595 printf_filtered ("\n");
2596 printfi_filtered (spaces, "name '%s' (",
2597 TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>");
2598 gdb_print_host_address (TYPE_NAME (type), gdb_stdout);
2599 printf_filtered (")\n");
2600 printfi_filtered (spaces, "tagname '%s' (",
2601 TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>");
2602 gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout);
2603 printf_filtered (")\n");
2604 printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type));
2605 switch (TYPE_CODE (type))
2607 case TYPE_CODE_UNDEF:
2608 printf_filtered ("(TYPE_CODE_UNDEF)");
2611 printf_filtered ("(TYPE_CODE_PTR)");
2613 case TYPE_CODE_ARRAY:
2614 printf_filtered ("(TYPE_CODE_ARRAY)");
2616 case TYPE_CODE_STRUCT:
2617 printf_filtered ("(TYPE_CODE_STRUCT)");
2619 case TYPE_CODE_UNION:
2620 printf_filtered ("(TYPE_CODE_UNION)");
2622 case TYPE_CODE_ENUM:
2623 printf_filtered ("(TYPE_CODE_ENUM)");
2625 case TYPE_CODE_FLAGS:
2626 printf_filtered ("(TYPE_CODE_FLAGS)");
2628 case TYPE_CODE_FUNC:
2629 printf_filtered ("(TYPE_CODE_FUNC)");
2632 printf_filtered ("(TYPE_CODE_INT)");
2635 printf_filtered ("(TYPE_CODE_FLT)");
2637 case TYPE_CODE_VOID:
2638 printf_filtered ("(TYPE_CODE_VOID)");
2641 printf_filtered ("(TYPE_CODE_SET)");
2643 case TYPE_CODE_RANGE:
2644 printf_filtered ("(TYPE_CODE_RANGE)");
2646 case TYPE_CODE_STRING:
2647 printf_filtered ("(TYPE_CODE_STRING)");
2649 case TYPE_CODE_BITSTRING:
2650 printf_filtered ("(TYPE_CODE_BITSTRING)");
2652 case TYPE_CODE_ERROR:
2653 printf_filtered ("(TYPE_CODE_ERROR)");
2655 case TYPE_CODE_MEMBERPTR:
2656 printf_filtered ("(TYPE_CODE_MEMBERPTR)");
2658 case TYPE_CODE_METHODPTR:
2659 printf_filtered ("(TYPE_CODE_METHODPTR)");
2661 case TYPE_CODE_METHOD:
2662 printf_filtered ("(TYPE_CODE_METHOD)");
2665 printf_filtered ("(TYPE_CODE_REF)");
2667 case TYPE_CODE_CHAR:
2668 printf_filtered ("(TYPE_CODE_CHAR)");
2670 case TYPE_CODE_BOOL:
2671 printf_filtered ("(TYPE_CODE_BOOL)");
2673 case TYPE_CODE_COMPLEX:
2674 printf_filtered ("(TYPE_CODE_COMPLEX)");
2676 case TYPE_CODE_TYPEDEF:
2677 printf_filtered ("(TYPE_CODE_TYPEDEF)");
2679 case TYPE_CODE_TEMPLATE:
2680 printf_filtered ("(TYPE_CODE_TEMPLATE)");
2682 case TYPE_CODE_TEMPLATE_ARG:
2683 printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)");
2685 case TYPE_CODE_NAMESPACE:
2686 printf_filtered ("(TYPE_CODE_NAMESPACE)");
2689 printf_filtered ("(UNKNOWN TYPE CODE)");
2692 puts_filtered ("\n");
2693 printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type));
2694 printfi_filtered (spaces, "objfile ");
2695 gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout);
2696 printf_filtered ("\n");
2697 printfi_filtered (spaces, "target_type ");
2698 gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout);
2699 printf_filtered ("\n");
2700 if (TYPE_TARGET_TYPE (type) != NULL)
2702 recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2);
2704 printfi_filtered (spaces, "pointer_type ");
2705 gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout);
2706 printf_filtered ("\n");
2707 printfi_filtered (spaces, "reference_type ");
2708 gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout);
2709 printf_filtered ("\n");
2710 printfi_filtered (spaces, "type_chain ");
2711 gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout);
2712 printf_filtered ("\n");
2713 printfi_filtered (spaces, "instance_flags 0x%x",
2714 TYPE_INSTANCE_FLAGS (type));
2715 if (TYPE_CONST (type))
2717 puts_filtered (" TYPE_FLAG_CONST");
2719 if (TYPE_VOLATILE (type))
2721 puts_filtered (" TYPE_FLAG_VOLATILE");
2723 if (TYPE_CODE_SPACE (type))
2725 puts_filtered (" TYPE_FLAG_CODE_SPACE");
2727 if (TYPE_DATA_SPACE (type))
2729 puts_filtered (" TYPE_FLAG_DATA_SPACE");
2731 if (TYPE_ADDRESS_CLASS_1 (type))
2733 puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1");
2735 if (TYPE_ADDRESS_CLASS_2 (type))
2737 puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2");
2739 puts_filtered ("\n");
2741 printfi_filtered (spaces, "flags");
2742 if (TYPE_UNSIGNED (type))
2744 puts_filtered (" TYPE_FLAG_UNSIGNED");
2746 if (TYPE_NOSIGN (type))
2748 puts_filtered (" TYPE_FLAG_NOSIGN");
2750 if (TYPE_STUB (type))
2752 puts_filtered (" TYPE_FLAG_STUB");
2754 if (TYPE_TARGET_STUB (type))
2756 puts_filtered (" TYPE_FLAG_TARGET_STUB");
2758 if (TYPE_STATIC (type))
2760 puts_filtered (" TYPE_FLAG_STATIC");
2762 if (TYPE_PROTOTYPED (type))
2764 puts_filtered (" TYPE_FLAG_PROTOTYPED");
2766 if (TYPE_INCOMPLETE (type))
2768 puts_filtered (" TYPE_FLAG_INCOMPLETE");
2770 if (TYPE_VARARGS (type))
2772 puts_filtered (" TYPE_FLAG_VARARGS");
2774 /* This is used for things like AltiVec registers on ppc. Gcc emits
2775 an attribute for the array type, which tells whether or not we
2776 have a vector, instead of a regular array. */
2777 if (TYPE_VECTOR (type))
2779 puts_filtered (" TYPE_FLAG_VECTOR");
2781 if (TYPE_FIXED_INSTANCE (type))
2783 puts_filtered (" TYPE_FIXED_INSTANCE");
2785 if (TYPE_STUB_SUPPORTED (type))
2787 puts_filtered (" TYPE_STUB_SUPPORTED");
2789 if (TYPE_NOTTEXT (type))
2791 puts_filtered (" TYPE_NOTTEXT");
2793 puts_filtered ("\n");
2794 printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type));
2795 gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout);
2796 puts_filtered ("\n");
2797 for (idx = 0; idx < TYPE_NFIELDS (type); idx++)
2799 printfi_filtered (spaces + 2,
2800 "[%d] bitpos %d bitsize %d type ",
2801 idx, TYPE_FIELD_BITPOS (type, idx),
2802 TYPE_FIELD_BITSIZE (type, idx));
2803 gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout);
2804 printf_filtered (" name '%s' (",
2805 TYPE_FIELD_NAME (type, idx) != NULL
2806 ? TYPE_FIELD_NAME (type, idx)
2808 gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout);
2809 printf_filtered (")\n");
2810 if (TYPE_FIELD_TYPE (type, idx) != NULL)
2812 recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4);
2815 printfi_filtered (spaces, "vptr_basetype ");
2816 gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout);
2817 puts_filtered ("\n");
2818 if (TYPE_VPTR_BASETYPE (type) != NULL)
2820 recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2);
2822 printfi_filtered (spaces, "vptr_fieldno %d\n",
2823 TYPE_VPTR_FIELDNO (type));
2824 switch (TYPE_CODE (type))
2826 case TYPE_CODE_STRUCT:
2827 printfi_filtered (spaces, "cplus_stuff ");
2828 gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type),
2830 puts_filtered ("\n");
2831 print_cplus_stuff (type, spaces);
2835 printfi_filtered (spaces, "floatformat ");
2836 if (TYPE_FLOATFORMAT (type) == NULL)
2837 puts_filtered ("(null)");
2840 puts_filtered ("{ ");
2841 if (TYPE_FLOATFORMAT (type)[0] == NULL
2842 || TYPE_FLOATFORMAT (type)[0]->name == NULL)
2843 puts_filtered ("(null)");
2845 puts_filtered (TYPE_FLOATFORMAT (type)[0]->name);
2847 puts_filtered (", ");
2848 if (TYPE_FLOATFORMAT (type)[1] == NULL
2849 || TYPE_FLOATFORMAT (type)[1]->name == NULL)
2850 puts_filtered ("(null)");
2852 puts_filtered (TYPE_FLOATFORMAT (type)[1]->name);
2854 puts_filtered (" }");
2856 puts_filtered ("\n");
2860 /* We have to pick one of the union types to be able print and
2861 test the value. Pick cplus_struct_type, even though we know
2862 it isn't any particular one. */
2863 printfi_filtered (spaces, "type_specific ");
2864 gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout);
2865 if (TYPE_CPLUS_SPECIFIC (type) != NULL)
2867 printf_filtered (_(" (unknown data form)"));
2869 printf_filtered ("\n");
2874 obstack_free (&dont_print_type_obstack, NULL);
2877 /* Trivial helpers for the libiberty hash table, for mapping one
2882 struct type *old, *new;
2886 type_pair_hash (const void *item)
2888 const struct type_pair *pair = item;
2889 return htab_hash_pointer (pair->old);
2893 type_pair_eq (const void *item_lhs, const void *item_rhs)
2895 const struct type_pair *lhs = item_lhs, *rhs = item_rhs;
2896 return lhs->old == rhs->old;
2899 /* Allocate the hash table used by copy_type_recursive to walk
2900 types without duplicates. We use OBJFILE's obstack, because
2901 OBJFILE is about to be deleted. */
2904 create_copied_types_hash (struct objfile *objfile)
2906 return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq,
2907 NULL, &objfile->objfile_obstack,
2908 hashtab_obstack_allocate,
2909 dummy_obstack_deallocate);
2912 /* Recursively copy (deep copy) TYPE, if it is associated with
2913 OBJFILE. Return a new type allocated using malloc, a saved type if
2914 we have already visited TYPE (using COPIED_TYPES), or TYPE if it is
2915 not associated with OBJFILE. */
2918 copy_type_recursive (struct objfile *objfile,
2920 htab_t copied_types)
2922 struct type_pair *stored, pair;
2924 struct type *new_type;
2926 if (TYPE_OBJFILE (type) == NULL)
2929 /* This type shouldn't be pointing to any types in other objfiles;
2930 if it did, the type might disappear unexpectedly. */
2931 gdb_assert (TYPE_OBJFILE (type) == objfile);
2934 slot = htab_find_slot (copied_types, &pair, INSERT);
2936 return ((struct type_pair *) *slot)->new;
2938 new_type = alloc_type (NULL);
2940 /* We must add the new type to the hash table immediately, in case
2941 we encounter this type again during a recursive call below. */
2942 stored = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair));
2944 stored->new = new_type;
2947 /* Copy the common fields of types. For the main type, we simply
2948 copy the entire thing and then update specific fields as needed. */
2949 *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type);
2950 TYPE_OBJFILE (new_type) = NULL;
2952 if (TYPE_NAME (type))
2953 TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type));
2954 if (TYPE_TAG_NAME (type))
2955 TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type));
2957 TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type);
2958 TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
2960 /* Copy the fields. */
2961 if (TYPE_NFIELDS (type))
2965 nfields = TYPE_NFIELDS (type);
2966 TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field);
2967 for (i = 0; i < nfields; i++)
2969 TYPE_FIELD_ARTIFICIAL (new_type, i) =
2970 TYPE_FIELD_ARTIFICIAL (type, i);
2971 TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i);
2972 if (TYPE_FIELD_TYPE (type, i))
2973 TYPE_FIELD_TYPE (new_type, i)
2974 = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i),
2976 if (TYPE_FIELD_NAME (type, i))
2977 TYPE_FIELD_NAME (new_type, i) =
2978 xstrdup (TYPE_FIELD_NAME (type, i));
2979 switch (TYPE_FIELD_LOC_KIND (type, i))
2981 case FIELD_LOC_KIND_BITPOS:
2982 SET_FIELD_BITPOS (TYPE_FIELD (new_type, i),
2983 TYPE_FIELD_BITPOS (type, i));
2985 case FIELD_LOC_KIND_PHYSADDR:
2986 SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i),
2987 TYPE_FIELD_STATIC_PHYSADDR (type, i));
2989 case FIELD_LOC_KIND_PHYSNAME:
2990 SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i),
2991 xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type,
2995 internal_error (__FILE__, __LINE__,
2996 _("Unexpected type field location kind: %d"),
2997 TYPE_FIELD_LOC_KIND (type, i));
3002 /* Copy pointers to other types. */
3003 if (TYPE_TARGET_TYPE (type))
3004 TYPE_TARGET_TYPE (new_type) =
3005 copy_type_recursive (objfile,
3006 TYPE_TARGET_TYPE (type),
3008 if (TYPE_VPTR_BASETYPE (type))
3009 TYPE_VPTR_BASETYPE (new_type) =
3010 copy_type_recursive (objfile,
3011 TYPE_VPTR_BASETYPE (type),
3013 /* Maybe copy the type_specific bits.
3015 NOTE drow/2005-12-09: We do not copy the C++-specific bits like
3016 base classes and methods. There's no fundamental reason why we
3017 can't, but at the moment it is not needed. */
3019 if (TYPE_CODE (type) == TYPE_CODE_FLT)
3020 TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type);
3021 else if (TYPE_CODE (type) == TYPE_CODE_STRUCT
3022 || TYPE_CODE (type) == TYPE_CODE_UNION
3023 || TYPE_CODE (type) == TYPE_CODE_TEMPLATE
3024 || TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
3025 INIT_CPLUS_SPECIFIC (new_type);
3030 /* Make a copy of the given TYPE, except that the pointer & reference
3031 types are not preserved.
3033 This function assumes that the given type has an associated objfile.
3034 This objfile is used to allocate the new type. */
3037 copy_type (const struct type *type)
3039 struct type *new_type;
3041 gdb_assert (TYPE_OBJFILE (type) != NULL);
3043 new_type = alloc_type (TYPE_OBJFILE (type));
3044 TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type);
3045 TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
3046 memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type),
3047 sizeof (struct main_type));
3052 static struct type *
3053 build_flt (int bit, char *name, const struct floatformat **floatformats)
3059 gdb_assert (floatformats != NULL);
3060 gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL);
3061 bit = floatformats[0]->totalsize;
3063 gdb_assert (bit >= 0);
3065 t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, 0, name, NULL);
3066 TYPE_FLOATFORMAT (t) = floatformats;
3070 static struct gdbarch_data *gdbtypes_data;
3072 const struct builtin_type *
3073 builtin_type (struct gdbarch *gdbarch)
3075 return gdbarch_data (gdbarch, gdbtypes_data);
3079 static struct type *
3080 build_complex (int bit, char *name, struct type *target_type)
3083 if (bit <= 0 || target_type == builtin_type_error)
3085 gdb_assert (builtin_type_error != NULL);
3086 return builtin_type_error;
3088 t = init_type (TYPE_CODE_COMPLEX, 2 * bit / TARGET_CHAR_BIT,
3089 0, name, (struct objfile *) NULL);
3090 TYPE_TARGET_TYPE (t) = target_type;
3095 gdbtypes_post_init (struct gdbarch *gdbarch)
3097 struct builtin_type *builtin_type
3098 = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type);
3100 builtin_type->builtin_void =
3101 init_type (TYPE_CODE_VOID, 1,
3103 "void", (struct objfile *) NULL);
3104 builtin_type->builtin_char =
3105 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3107 | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)),
3108 "char", (struct objfile *) NULL);
3109 builtin_type->builtin_signed_char =
3110 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3112 "signed char", (struct objfile *) NULL);
3113 builtin_type->builtin_unsigned_char =
3114 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3116 "unsigned char", (struct objfile *) NULL);
3117 builtin_type->builtin_short =
3118 init_type (TYPE_CODE_INT,
3119 gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
3120 0, "short", (struct objfile *) NULL);
3121 builtin_type->builtin_unsigned_short =
3122 init_type (TYPE_CODE_INT,
3123 gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
3124 TYPE_FLAG_UNSIGNED, "unsigned short",
3125 (struct objfile *) NULL);
3126 builtin_type->builtin_int =
3127 init_type (TYPE_CODE_INT,
3128 gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
3129 0, "int", (struct objfile *) NULL);
3130 builtin_type->builtin_unsigned_int =
3131 init_type (TYPE_CODE_INT,
3132 gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
3133 TYPE_FLAG_UNSIGNED, "unsigned int",
3134 (struct objfile *) NULL);
3135 builtin_type->builtin_long =
3136 init_type (TYPE_CODE_INT,
3137 gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
3138 0, "long", (struct objfile *) NULL);
3139 builtin_type->builtin_unsigned_long =
3140 init_type (TYPE_CODE_INT,
3141 gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
3142 TYPE_FLAG_UNSIGNED, "unsigned long",
3143 (struct objfile *) NULL);
3144 builtin_type->builtin_long_long =
3145 init_type (TYPE_CODE_INT,
3146 gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
3147 0, "long long", (struct objfile *) NULL);
3148 builtin_type->builtin_unsigned_long_long =
3149 init_type (TYPE_CODE_INT,
3150 gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
3151 TYPE_FLAG_UNSIGNED, "unsigned long long",
3152 (struct objfile *) NULL);
3153 builtin_type->builtin_float
3154 = build_flt (gdbarch_float_bit (gdbarch), "float",
3155 gdbarch_float_format (gdbarch));
3156 builtin_type->builtin_double
3157 = build_flt (gdbarch_double_bit (gdbarch), "double",
3158 gdbarch_double_format (gdbarch));
3159 builtin_type->builtin_long_double
3160 = build_flt (gdbarch_long_double_bit (gdbarch), "long double",
3161 gdbarch_long_double_format (gdbarch));
3162 builtin_type->builtin_complex
3163 = build_complex (gdbarch_float_bit (gdbarch), "complex",
3164 builtin_type->builtin_float);
3165 builtin_type->builtin_double_complex
3166 = build_complex (gdbarch_double_bit (gdbarch), "double complex",
3167 builtin_type->builtin_double);
3168 builtin_type->builtin_string =
3169 init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3171 "string", (struct objfile *) NULL);
3172 builtin_type->builtin_bool =
3173 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3175 "bool", (struct objfile *) NULL);
3177 /* The following three are about decimal floating point types, which
3178 are 32-bits, 64-bits and 128-bits respectively. */
3179 builtin_type->builtin_decfloat
3180 = init_type (TYPE_CODE_DECFLOAT, 32 / 8,
3182 "_Decimal32", (struct objfile *) NULL);
3183 builtin_type->builtin_decdouble
3184 = init_type (TYPE_CODE_DECFLOAT, 64 / 8,
3186 "_Decimal64", (struct objfile *) NULL);
3187 builtin_type->builtin_declong
3188 = init_type (TYPE_CODE_DECFLOAT, 128 / 8,
3190 "_Decimal128", (struct objfile *) NULL);
3192 /* Pointer/Address types. */
3194 /* NOTE: on some targets, addresses and pointers are not necessarily
3195 the same --- for example, on the D10V, pointers are 16 bits long,
3196 but addresses are 32 bits long. See doc/gdbint.texinfo,
3197 ``Pointers Are Not Always Addresses''.
3200 - gdb's `struct type' always describes the target's
3202 - gdb's `struct value' objects should always hold values in
3204 - gdb's CORE_ADDR values are addresses in the unified virtual
3205 address space that the assembler and linker work with. Thus,
3206 since target_read_memory takes a CORE_ADDR as an argument, it
3207 can access any memory on the target, even if the processor has
3208 separate code and data address spaces.
3211 - If v is a value holding a D10V code pointer, its contents are
3212 in target form: a big-endian address left-shifted two bits.
3213 - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as
3214 sizeof (void *) == 2 on the target.
3216 In this context, builtin_type->CORE_ADDR is a bit odd: it's a
3217 target type for a value the target will never see. It's only
3218 used to hold the values of (typeless) linker symbols, which are
3219 indeed in the unified virtual address space. */
3221 builtin_type->builtin_data_ptr =
3222 make_pointer_type (builtin_type->builtin_void, NULL);
3223 builtin_type->builtin_func_ptr =
3224 lookup_pointer_type (lookup_function_type (builtin_type->builtin_void));
3225 builtin_type->builtin_core_addr =
3226 init_type (TYPE_CODE_INT,
3227 gdbarch_addr_bit (gdbarch) / 8,
3229 "__CORE_ADDR", (struct objfile *) NULL);
3232 /* The following set of types is used for symbols with no
3233 debug information. */
3234 builtin_type->nodebug_text_symbol =
3235 init_type (TYPE_CODE_FUNC, 1, 0,
3236 "<text variable, no debug info>", NULL);
3237 TYPE_TARGET_TYPE (builtin_type->nodebug_text_symbol) =
3238 builtin_type->builtin_int;
3239 builtin_type->nodebug_data_symbol =
3240 init_type (TYPE_CODE_INT,
3241 gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0,
3242 "<data variable, no debug info>", NULL);
3243 builtin_type->nodebug_unknown_symbol =
3244 init_type (TYPE_CODE_INT, 1, 0,
3245 "<variable (not text or data), no debug info>", NULL);
3246 builtin_type->nodebug_tls_symbol =
3247 init_type (TYPE_CODE_INT,
3248 gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0,
3249 "<thread local variable, no debug info>", NULL);
3251 return builtin_type;
3254 extern void _initialize_gdbtypes (void);
3256 _initialize_gdbtypes (void)
3258 gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init);
3260 /* FIXME: The following types are architecture-neutral. However,
3261 they contain pointer_type and reference_type fields potentially
3262 caching pointer or reference types that *are* architecture
3266 init_type (TYPE_CODE_INT, 0 / 8,
3268 "int0_t", (struct objfile *) NULL);
3270 init_type (TYPE_CODE_INT, 8 / 8,
3272 "int8_t", (struct objfile *) NULL);
3273 builtin_type_uint8 =
3274 init_type (TYPE_CODE_INT, 8 / 8,
3275 TYPE_FLAG_UNSIGNED | TYPE_FLAG_NOTTEXT,
3276 "uint8_t", (struct objfile *) NULL);
3277 builtin_type_int16 =
3278 init_type (TYPE_CODE_INT, 16 / 8,
3280 "int16_t", (struct objfile *) NULL);
3281 builtin_type_uint16 =
3282 init_type (TYPE_CODE_INT, 16 / 8,
3284 "uint16_t", (struct objfile *) NULL);
3285 builtin_type_int32 =
3286 init_type (TYPE_CODE_INT, 32 / 8,
3288 "int32_t", (struct objfile *) NULL);
3289 builtin_type_uint32 =
3290 init_type (TYPE_CODE_INT, 32 / 8,
3292 "uint32_t", (struct objfile *) NULL);
3293 builtin_type_int64 =
3294 init_type (TYPE_CODE_INT, 64 / 8,
3296 "int64_t", (struct objfile *) NULL);
3297 builtin_type_uint64 =
3298 init_type (TYPE_CODE_INT, 64 / 8,
3300 "uint64_t", (struct objfile *) NULL);
3301 builtin_type_int128 =
3302 init_type (TYPE_CODE_INT, 128 / 8,
3304 "int128_t", (struct objfile *) NULL);
3305 builtin_type_uint128 =
3306 init_type (TYPE_CODE_INT, 128 / 8,
3308 "uint128_t", (struct objfile *) NULL);
3310 builtin_type_ieee_single =
3311 build_flt (-1, "builtin_type_ieee_single", floatformats_ieee_single);
3312 builtin_type_ieee_double =
3313 build_flt (-1, "builtin_type_ieee_double", floatformats_ieee_double);
3314 builtin_type_i387_ext =
3315 build_flt (-1, "builtin_type_i387_ext", floatformats_i387_ext);
3316 builtin_type_m68881_ext =
3317 build_flt (-1, "builtin_type_m68881_ext", floatformats_m68881_ext);
3318 builtin_type_arm_ext =
3319 build_flt (-1, "builtin_type_arm_ext", floatformats_arm_ext);
3320 builtin_type_ia64_spill =
3321 build_flt (-1, "builtin_type_ia64_spill", floatformats_ia64_spill);
3322 builtin_type_ia64_quad =
3323 build_flt (-1, "builtin_type_ia64_quad", floatformats_ia64_quad);
3326 init_type (TYPE_CODE_VOID, 1,
3328 "void", (struct objfile *) NULL);
3329 builtin_type_true_char =
3330 init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3332 "true character", (struct objfile *) NULL);
3333 builtin_type_true_unsigned_char =
3334 init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
3336 "true character", (struct objfile *) NULL);
3338 add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\
3339 Set debugging of C++ overloading."), _("\
3340 Show debugging of C++ overloading."), _("\
3341 When enabled, ranking of the functions is displayed."),
3343 show_overload_debug,
3344 &setdebuglist, &showdebuglist);
3346 /* Add user knob for controlling resolution of opaque types. */
3347 add_setshow_boolean_cmd ("opaque-type-resolution", class_support,
3348 &opaque_type_resolution, _("\
3349 Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\
3350 Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL,
3352 show_opaque_type_resolution,
3353 &setlist, &showlist);