1 /* Support routines for manipulating internal types for GDB.
2 Copyright (C) 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
28 #include "expression.h"
33 #include "complaints.h"
35 /* These variables point to the objects
36 representing the predefined C data types. */
38 struct type
*builtin_type_void
;
39 struct type
*builtin_type_char
;
40 struct type
*builtin_type_short
;
41 struct type
*builtin_type_int
;
42 struct type
*builtin_type_long
;
43 struct type
*builtin_type_long_long
;
44 struct type
*builtin_type_signed_char
;
45 struct type
*builtin_type_unsigned_char
;
46 struct type
*builtin_type_unsigned_short
;
47 struct type
*builtin_type_unsigned_int
;
48 struct type
*builtin_type_unsigned_long
;
49 struct type
*builtin_type_unsigned_long_long
;
50 struct type
*builtin_type_float
;
51 struct type
*builtin_type_double
;
52 struct type
*builtin_type_long_double
;
53 struct type
*builtin_type_complex
;
54 struct type
*builtin_type_double_complex
;
55 struct type
*builtin_type_string
;
57 /* Alloc a new type structure and fill it with some defaults. If
58 OBJFILE is non-NULL, then allocate the space for the type structure
59 in that objfile's type_obstack. */
63 struct objfile
*objfile
;
65 register struct type
*type
;
67 /* Alloc the structure and start off with all fields zeroed. */
71 type
= (struct type
*) xmalloc (sizeof (struct type
));
75 type
= (struct type
*) obstack_alloc (&objfile
-> type_obstack
,
76 sizeof (struct type
));
78 memset ((char *) type
, 0, sizeof (struct type
));
80 /* Initialize the fields that might not be zero. */
82 TYPE_CODE (type
) = TYPE_CODE_UNDEF
;
83 TYPE_OBJFILE (type
) = objfile
;
84 TYPE_VPTR_FIELDNO (type
) = -1;
89 /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points
90 to a pointer to memory where the pointer type should be stored.
91 If *TYPEPTR is zero, update it to point to the pointer type we return.
92 We allocate new memory if needed. */
95 make_pointer_type (type
, typeptr
)
97 struct type
**typeptr
;
99 register struct type
*ntype
; /* New type */
100 struct objfile
*objfile
;
102 ntype
= TYPE_POINTER_TYPE (type
);
106 return ntype
; /* Don't care about alloc, and have new type. */
107 else if (*typeptr
== 0)
109 *typeptr
= ntype
; /* Tracking alloc, and we have new type. */
113 if (typeptr
== 0 || *typeptr
== 0) /* We'll need to allocate one. */
115 ntype
= alloc_type (TYPE_OBJFILE (type
));
119 else /* We have storage, but need to reset it. */
122 objfile
= TYPE_OBJFILE (ntype
);
123 memset ((char *) ntype
, 0, sizeof (struct type
));
124 TYPE_OBJFILE (ntype
) = objfile
;
127 TYPE_TARGET_TYPE (ntype
) = type
;
128 TYPE_POINTER_TYPE (type
) = ntype
;
130 /* FIXME! Assume the machine has only one representation for pointers! */
132 TYPE_LENGTH (ntype
) = TARGET_PTR_BIT
/ TARGET_CHAR_BIT
;
133 TYPE_CODE (ntype
) = TYPE_CODE_PTR
;
135 /* pointers are unsigned */
136 TYPE_FLAGS (ntype
) |= TYPE_FLAG_UNSIGNED
;
138 if (!TYPE_POINTER_TYPE (type
)) /* Remember it, if don't have one. */
139 TYPE_POINTER_TYPE (type
) = ntype
;
144 /* Given a type TYPE, return a type of pointers to that type.
145 May need to construct such a type if this is the first use. */
148 lookup_pointer_type (type
)
151 return make_pointer_type (type
, (struct type
**)0);
154 /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points
155 to a pointer to memory where the reference type should be stored.
156 If *TYPEPTR is zero, update it to point to the reference type we return.
157 We allocate new memory if needed. */
160 make_reference_type (type
, typeptr
)
162 struct type
**typeptr
;
164 register struct type
*ntype
; /* New type */
165 struct objfile
*objfile
;
167 ntype
= TYPE_REFERENCE_TYPE (type
);
171 return ntype
; /* Don't care about alloc, and have new type. */
172 else if (*typeptr
== 0)
174 *typeptr
= ntype
; /* Tracking alloc, and we have new type. */
178 if (typeptr
== 0 || *typeptr
== 0) /* We'll need to allocate one. */
180 ntype
= alloc_type (TYPE_OBJFILE (type
));
184 else /* We have storage, but need to reset it. */
187 objfile
= TYPE_OBJFILE (ntype
);
188 memset ((char *) ntype
, 0, sizeof (struct type
));
189 TYPE_OBJFILE (ntype
) = objfile
;
192 TYPE_TARGET_TYPE (ntype
) = type
;
193 TYPE_REFERENCE_TYPE (type
) = ntype
;
195 /* FIXME! Assume the machine has only one representation for references,
196 and that it matches the (only) representation for pointers! */
198 TYPE_LENGTH (ntype
) = TARGET_PTR_BIT
/ TARGET_CHAR_BIT
;
199 TYPE_CODE (ntype
) = TYPE_CODE_REF
;
201 if (!TYPE_REFERENCE_TYPE (type
)) /* Remember it, if don't have one. */
202 TYPE_REFERENCE_TYPE (type
) = ntype
;
207 /* Same as above, but caller doesn't care about memory allocation details. */
210 lookup_reference_type (type
)
213 return make_reference_type (type
, (struct type
**)0);
216 /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points
217 to a pointer to memory where the function type should be stored.
218 If *TYPEPTR is zero, update it to point to the function type we return.
219 We allocate new memory if needed. */
222 make_function_type (type
, typeptr
)
224 struct type
**typeptr
;
226 register struct type
*ntype
; /* New type */
227 struct objfile
*objfile
;
229 ntype
= TYPE_FUNCTION_TYPE (type
);
233 return ntype
; /* Don't care about alloc, and have new type. */
234 else if (*typeptr
== 0)
236 *typeptr
= ntype
; /* Tracking alloc, and we have new type. */
240 if (typeptr
== 0 || *typeptr
== 0) /* We'll need to allocate one. */
242 ntype
= alloc_type (TYPE_OBJFILE (type
));
246 else /* We have storage, but need to reset it. */
249 objfile
= TYPE_OBJFILE (ntype
);
250 memset ((char *) ntype
, 0, sizeof (struct type
));
251 TYPE_OBJFILE (ntype
) = objfile
;
254 TYPE_TARGET_TYPE (ntype
) = type
;
255 TYPE_FUNCTION_TYPE (type
) = ntype
;
257 TYPE_LENGTH (ntype
) = 1;
258 TYPE_CODE (ntype
) = TYPE_CODE_FUNC
;
260 if (!TYPE_FUNCTION_TYPE (type
)) /* Remember it, if don't have one. */
261 TYPE_FUNCTION_TYPE (type
) = ntype
;
267 /* Given a type TYPE, return a type of functions that return that type.
268 May need to construct such a type if this is the first use. */
271 lookup_function_type (type
)
274 return make_function_type (type
, (struct type
**)0);
277 /* Implement direct support for MEMBER_TYPE in GNU C++.
278 May need to construct such a type if this is the first use.
279 The TYPE is the type of the member. The DOMAIN is the type
280 of the aggregate that the member belongs to. */
283 lookup_member_type (type
, domain
)
287 register struct type
*mtype
;
289 mtype
= alloc_type (TYPE_OBJFILE (type
));
290 smash_to_member_type (mtype
, domain
, type
);
294 /* Allocate a stub method whose return type is TYPE.
295 This apparently happens for speed of symbol reading, since parsing
296 out the arguments to the method is cpu-intensive, the way we are doing
297 it. So, we will fill in arguments later.
298 This always returns a fresh type. */
301 allocate_stub_method (type
)
306 mtype
= alloc_type (TYPE_OBJFILE (type
));
307 TYPE_TARGET_TYPE (mtype
) = type
;
308 /* _DOMAIN_TYPE (mtype) = unknown yet */
309 /* _ARG_TYPES (mtype) = unknown yet */
310 TYPE_FLAGS (mtype
) = TYPE_FLAG_STUB
;
311 TYPE_CODE (mtype
) = TYPE_CODE_METHOD
;
312 TYPE_LENGTH (mtype
) = 1;
316 /* Create a range type using either a blank type supplied in RESULT_TYPE,
317 or creating a new type, inheriting the objfile from INDEX_TYPE.
319 Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to
320 HIGH_BOUND, inclusive.
322 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
323 sure it is TYPE_CODE_UNDEF before we bash it into a range type? */
326 create_range_type (result_type
, index_type
, low_bound
, high_bound
)
327 struct type
*result_type
;
328 struct type
*index_type
;
332 if (result_type
== NULL
)
334 result_type
= alloc_type (TYPE_OBJFILE (index_type
));
336 TYPE_CODE (result_type
) = TYPE_CODE_RANGE
;
337 TYPE_TARGET_TYPE (result_type
) = index_type
;
338 TYPE_LENGTH (result_type
) = TYPE_LENGTH (index_type
);
339 TYPE_NFIELDS (result_type
) = 2;
340 TYPE_FIELDS (result_type
) = (struct field
*)
341 TYPE_ALLOC (result_type
, 2 * sizeof (struct field
));
342 memset (TYPE_FIELDS (result_type
), 0, 2 * sizeof (struct field
));
343 TYPE_FIELD_BITPOS (result_type
, 0) = low_bound
;
344 TYPE_FIELD_BITPOS (result_type
, 1) = high_bound
;
345 TYPE_FIELD_TYPE (result_type
, 0) = builtin_type_int
; /* FIXME */
346 TYPE_FIELD_TYPE (result_type
, 1) = builtin_type_int
; /* FIXME */
348 return (result_type
);
352 /* Create an array type using either a blank type supplied in RESULT_TYPE,
353 or creating a new type, inheriting the objfile from RANGE_TYPE.
355 Elements will be of type ELEMENT_TYPE, the indices will be of type
358 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
359 sure it is TYPE_CODE_UNDEF before we bash it into an array type? */
362 create_array_type (result_type
, element_type
, range_type
)
363 struct type
*result_type
;
364 struct type
*element_type
;
365 struct type
*range_type
;
370 if (TYPE_CODE (range_type
) != TYPE_CODE_RANGE
)
372 /* FIXME: We only handle range types at the moment. Complain and
373 create a dummy range type to use. */
374 warning ("internal error: array index type must be a range type");
375 range_type
= lookup_fundamental_type (TYPE_OBJFILE (range_type
),
377 range_type
= create_range_type ((struct type
*) NULL
, range_type
, 0, 0);
379 if (result_type
== NULL
)
381 result_type
= alloc_type (TYPE_OBJFILE (range_type
));
383 TYPE_CODE (result_type
) = TYPE_CODE_ARRAY
;
384 TYPE_TARGET_TYPE (result_type
) = element_type
;
385 low_bound
= TYPE_FIELD_BITPOS (range_type
, 0);
386 high_bound
= TYPE_FIELD_BITPOS (range_type
, 1);
387 TYPE_LENGTH (result_type
) =
388 TYPE_LENGTH (element_type
) * (high_bound
- low_bound
+ 1);
389 TYPE_NFIELDS (result_type
) = 1;
390 TYPE_FIELDS (result_type
) =
391 (struct field
*) TYPE_ALLOC (result_type
, sizeof (struct field
));
392 memset (TYPE_FIELDS (result_type
), 0, sizeof (struct field
));
393 TYPE_FIELD_TYPE (result_type
, 0) = range_type
;
394 TYPE_VPTR_FIELDNO (result_type
) = -1;
396 return (result_type
);
399 /* Create a string type using either a blank type supplied in RESULT_TYPE,
400 or creating a new type. String types are similar enough to array of
401 char types that we can use create_array_type to build the basic type
402 and then bash it into a string type.
404 For fixed length strings, the range type contains 0 as the lower
405 bound and the length of the string minus one as the upper bound.
407 FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make
408 sure it is TYPE_CODE_UNDEF before we bash it into a string type? */
411 create_string_type (result_type
, range_type
)
412 struct type
*result_type
;
413 struct type
*range_type
;
415 result_type
= create_array_type (result_type
, builtin_type_char
, range_type
);
416 TYPE_CODE (result_type
) = TYPE_CODE_STRING
;
417 return (result_type
);
420 /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE.
421 A MEMBER is a wierd thing -- it amounts to a typed offset into
422 a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't
423 include the offset (that's the value of the MEMBER itself), but does
424 include the structure type into which it points (for some reason).
426 When "smashing" the type, we preserve the objfile that the
427 old type pointed to, since we aren't changing where the type is actually
431 smash_to_member_type (type
, domain
, to_type
)
434 struct type
*to_type
;
436 struct objfile
*objfile
;
438 objfile
= TYPE_OBJFILE (type
);
440 memset ((char *) type
, 0, sizeof (struct type
));
441 TYPE_OBJFILE (type
) = objfile
;
442 TYPE_TARGET_TYPE (type
) = to_type
;
443 TYPE_DOMAIN_TYPE (type
) = domain
;
444 TYPE_LENGTH (type
) = 1; /* In practice, this is never needed. */
445 TYPE_CODE (type
) = TYPE_CODE_MEMBER
;
448 /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
449 METHOD just means `function that gets an extra "this" argument'.
451 When "smashing" the type, we preserve the objfile that the
452 old type pointed to, since we aren't changing where the type is actually
456 smash_to_method_type (type
, domain
, to_type
, args
)
459 struct type
*to_type
;
462 struct objfile
*objfile
;
464 objfile
= TYPE_OBJFILE (type
);
466 memset ((char *) type
, 0, sizeof (struct type
));
467 TYPE_OBJFILE (type
) = objfile
;
468 TYPE_TARGET_TYPE (type
) = to_type
;
469 TYPE_DOMAIN_TYPE (type
) = domain
;
470 TYPE_ARG_TYPES (type
) = args
;
471 TYPE_LENGTH (type
) = 1; /* In practice, this is never needed. */
472 TYPE_CODE (type
) = TYPE_CODE_METHOD
;
475 /* Return a typename for a struct/union/enum type
476 without the tag qualifier. If the type has a NULL name,
480 type_name_no_tag (type
)
481 register const struct type
*type
;
485 if ((name
= TYPE_NAME (type
)) != NULL
)
487 switch (TYPE_CODE (type
))
489 case TYPE_CODE_STRUCT
:
490 if(!strncmp (name
, "struct ", 7))
495 case TYPE_CODE_UNION
:
496 if(!strncmp (name
, "union ", 6))
502 if(!strncmp (name
, "enum ", 5))
507 default: /* To avoid -Wall warnings */
514 /* Lookup a primitive type named NAME.
515 Return zero if NAME is not a primitive type.*/
518 lookup_primitive_typename (name
)
521 struct type
** const *p
;
523 for (p
= current_language
-> la_builtin_type_vector
; *p
!= NULL
; p
++)
525 if (STREQ ((**p
) -> name
, name
))
533 /* Lookup a typedef or primitive type named NAME,
534 visible in lexical block BLOCK.
535 If NOERR is nonzero, return zero if NAME is not suitably defined. */
538 lookup_typename (name
, block
, noerr
)
543 register struct symbol
*sym
;
544 register struct type
*tmp
;
546 sym
= lookup_symbol (name
, block
, VAR_NAMESPACE
, 0, (struct symtab
**) NULL
);
547 if (sym
== NULL
|| SYMBOL_CLASS (sym
) != LOC_TYPEDEF
)
549 tmp
= lookup_primitive_typename (name
);
554 else if (!tmp
&& noerr
)
560 error ("No type named %s.", name
);
563 return (SYMBOL_TYPE (sym
));
567 lookup_unsigned_typename (name
)
570 char *uns
= alloca (strlen (name
) + 10);
572 strcpy (uns
, "unsigned ");
573 strcpy (uns
+ 9, name
);
574 return (lookup_typename (uns
, (struct block
*) NULL
, 0));
578 lookup_signed_typename (name
)
582 char *uns
= alloca (strlen (name
) + 8);
584 strcpy (uns
, "signed ");
585 strcpy (uns
+ 7, name
);
586 t
= lookup_typename (uns
, (struct block
*) NULL
, 1);
587 /* If we don't find "signed FOO" just try again with plain "FOO". */
590 return lookup_typename (name
, (struct block
*) NULL
, 0);
593 /* Lookup a structure type named "struct NAME",
594 visible in lexical block BLOCK. */
597 lookup_struct (name
, block
)
601 register struct symbol
*sym
;
603 sym
= lookup_symbol (name
, block
, STRUCT_NAMESPACE
, 0,
604 (struct symtab
**) NULL
);
608 error ("No struct type named %s.", name
);
610 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_STRUCT
)
612 error ("This context has class, union or enum %s, not a struct.", name
);
614 return (SYMBOL_TYPE (sym
));
617 /* Lookup a union type named "union NAME",
618 visible in lexical block BLOCK. */
621 lookup_union (name
, block
)
625 register struct symbol
*sym
;
627 sym
= lookup_symbol (name
, block
, STRUCT_NAMESPACE
, 0,
628 (struct symtab
**) NULL
);
632 error ("No union type named %s.", name
);
634 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_UNION
)
636 error ("This context has class, struct or enum %s, not a union.", name
);
638 return (SYMBOL_TYPE (sym
));
641 /* Lookup an enum type named "enum NAME",
642 visible in lexical block BLOCK. */
645 lookup_enum (name
, block
)
649 register struct symbol
*sym
;
651 sym
= lookup_symbol (name
, block
, STRUCT_NAMESPACE
, 0,
652 (struct symtab
**) NULL
);
655 error ("No enum type named %s.", name
);
657 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_ENUM
)
659 error ("This context has class, struct or union %s, not an enum.", name
);
661 return (SYMBOL_TYPE (sym
));
664 /* Lookup a template type named "template NAME<TYPE>",
665 visible in lexical block BLOCK. */
668 lookup_template_type (name
, type
, block
)
674 char *nam
= (char*) alloca(strlen(name
) + strlen(type
->name
) + 4);
677 strcat (nam
, type
->name
);
678 strcat (nam
, " >"); /* FIXME, extra space still introduced in gcc? */
680 sym
= lookup_symbol (nam
, block
, VAR_NAMESPACE
, 0, (struct symtab
**)NULL
);
684 error ("No template type named %s.", name
);
686 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_STRUCT
)
688 error ("This context has class, union or enum %s, not a struct.", name
);
690 return (SYMBOL_TYPE (sym
));
693 /* Given a type TYPE, lookup the type of the component of type named NAME.
694 If NOERR is nonzero, return zero if NAME is not suitably defined.
695 If NAME is the name of a baseclass type, return that type. */
698 lookup_struct_elt_type (type
, name
, noerr
)
705 if (TYPE_CODE (type
) == TYPE_CODE_PTR
||
706 TYPE_CODE (type
) == TYPE_CODE_REF
)
707 type
= TYPE_TARGET_TYPE (type
);
709 if (TYPE_CODE (type
) != TYPE_CODE_STRUCT
&&
710 TYPE_CODE (type
) != TYPE_CODE_UNION
)
712 target_terminal_ours ();
714 fprintf (stderr
, "Type ");
715 type_print (type
, "", stderr
, -1);
716 error (" is not a structure or union type.");
719 check_stub_type (type
);
721 if (STREQ (type_name_no_tag (type
), name
))
724 for (i
= TYPE_NFIELDS (type
) - 1; i
>= TYPE_N_BASECLASSES (type
); i
--)
726 char *t_field_name
= TYPE_FIELD_NAME (type
, i
);
728 if (t_field_name
&& STREQ (t_field_name
, name
))
730 return TYPE_FIELD_TYPE (type
, i
);
734 /* OK, it's not in this class. Recursively check the baseclasses. */
735 for (i
= TYPE_N_BASECLASSES (type
) - 1; i
>= 0; i
--)
739 t
= lookup_struct_elt_type (TYPE_BASECLASS (type
, i
), name
, noerr
);
751 target_terminal_ours ();
753 fprintf (stderr
, "Type ");
754 type_print (type
, "", stderr
, -1);
755 fprintf (stderr
, " has no component named ");
756 fputs_filtered (name
, stderr
);
758 return (struct type
*)-1; /* For lint */
761 /* This function is really horrible, but to avoid it, there would need
762 to be more filling in of forward references. */
765 fill_in_vptr_fieldno (type
)
768 if (TYPE_VPTR_FIELDNO (type
) < 0)
772 /* We must start at zero in case the first (and only) baseclass is
773 virtual (and hence we cannot share the table pointer). */
774 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
776 fill_in_vptr_fieldno (TYPE_BASECLASS (type
, i
));
777 if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type
, i
)) >= 0)
779 TYPE_VPTR_FIELDNO (type
)
780 = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type
, i
));
781 TYPE_VPTR_BASETYPE (type
)
782 = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type
, i
));
789 /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989.
791 If this is a stubbed struct (i.e. declared as struct foo *), see if
792 we can find a full definition in some other file. If so, copy this
793 definition, so we can use it in future. If not, set a flag so we
794 don't waste too much time in future. (FIXME, this doesn't seem
797 This used to be coded as a macro, but I don't think it is called
798 often enough to merit such treatment.
801 struct complaint stub_noname_complaint
=
802 {"stub type has NULL name", 0, 0};
805 check_stub_type (type
)
808 if (TYPE_FLAGS(type
) & TYPE_FLAG_STUB
)
810 char* name
= type_name_no_tag (type
);
814 complain (&stub_noname_complaint
);
817 sym
= lookup_symbol (name
, 0, STRUCT_NAMESPACE
, 0,
818 (struct symtab
**) NULL
);
821 memcpy ((char *)type
, (char *)SYMBOL_TYPE(sym
), sizeof (struct type
));
826 /* Ugly hack to convert method stubs into method types.
828 He ain't kiddin'. This demangles the name of the method into a string
829 including argument types, parses out each argument type, generates
830 a string casting a zero to that type, evaluates the string, and stuffs
831 the resulting type into an argtype vector!!! Then it knows the type
832 of the whole function (including argument types for overloading),
833 which info used to be in the stab's but was removed to hack back
834 the space required for them. */
837 check_stub_method (type
, i
, j
)
843 char *mangled_name
= gdb_mangle_name (type
, i
, j
);
844 char *demangled_name
= cplus_demangle (mangled_name
,
845 DMGL_PARAMS
| DMGL_ANSI
);
846 char *argtypetext
, *p
;
847 int depth
= 0, argcount
= 1;
848 struct type
**argtypes
;
851 if (demangled_name
== NULL
)
853 error ("Internal: Cannot demangle mangled name `%s'.", mangled_name
);
856 /* Now, read in the parameters that define this type. */
857 argtypetext
= strchr (demangled_name
, '(') + 1;
869 else if (*p
== ',' && depth
== 0)
877 /* We need two more slots: one for the THIS pointer, and one for the
878 NULL [...] or void [end of arglist]. */
880 argtypes
= (struct type
**)
881 TYPE_ALLOC (type
, (argcount
+ 2) * sizeof (struct type
*));
883 argtypes
[0] = lookup_pointer_type (type
);
886 if (*p
!= ')') /* () means no args, skip while */
891 if (depth
<= 0 && (*p
== ',' || *p
== ')'))
894 parse_and_eval_type (argtypetext
, p
- argtypetext
);
912 if (p
[-2] != '.') /* Not '...' */
914 argtypes
[argcount
] = builtin_type_void
; /* List terminator */
918 argtypes
[argcount
] = NULL
; /* Ellist terminator */
921 free (demangled_name
);
923 f
= TYPE_FN_FIELDLIST1 (type
, i
);
924 TYPE_FN_FIELD_PHYSNAME (f
, j
) = mangled_name
;
926 /* Now update the old "stub" type into a real type. */
927 mtype
= TYPE_FN_FIELD_TYPE (f
, j
);
928 TYPE_DOMAIN_TYPE (mtype
) = type
;
929 TYPE_ARG_TYPES (mtype
) = argtypes
;
930 TYPE_FLAGS (mtype
) &= ~TYPE_FLAG_STUB
;
931 TYPE_FN_FIELD_STUB (f
, j
) = 0;
934 const struct cplus_struct_type cplus_struct_default
;
937 allocate_cplus_struct_type (type
)
940 if (!HAVE_CPLUS_STRUCT (type
))
942 TYPE_CPLUS_SPECIFIC (type
) = (struct cplus_struct_type
*)
943 TYPE_ALLOC (type
, sizeof (struct cplus_struct_type
));
944 *(TYPE_CPLUS_SPECIFIC(type
)) = cplus_struct_default
;
948 /* Helper function to initialize the standard scalar types.
950 If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy
951 of the string pointed to by name in the type_obstack for that objfile,
952 and initialize the type name to that copy. There are places (mipsread.c
953 in particular, where init_type is called with a NULL value for NAME). */
956 init_type (code
, length
, flags
, name
, objfile
)
961 struct objfile
*objfile
;
963 register struct type
*type
;
965 type
= alloc_type (objfile
);
966 TYPE_CODE (type
) = code
;
967 TYPE_LENGTH (type
) = length
;
968 TYPE_FLAGS (type
) |= flags
;
969 if ((name
!= NULL
) && (objfile
!= NULL
))
972 obsavestring (name
, strlen (name
), &objfile
-> type_obstack
);
976 TYPE_NAME (type
) = name
;
981 if (code
== TYPE_CODE_STRUCT
|| code
== TYPE_CODE_UNION
)
983 INIT_CPLUS_SPECIFIC (type
);
988 /* Look up a fundamental type for the specified objfile.
989 May need to construct such a type if this is the first use.
991 Some object file formats (ELF, COFF, etc) do not define fundamental
992 types such as "int" or "double". Others (stabs for example), do
993 define fundamental types.
995 For the formats which don't provide fundamental types, gdb can create
996 such types, using defaults reasonable for the current language and
997 the current target machine.
999 NOTE: This routine is obsolescent. Each debugging format reader
1000 should manage it's own fundamental types, either creating them from
1001 suitable defaults or reading them from the debugging information,
1002 whichever is appropriate. The DWARF reader has already been
1003 fixed to do this. Once the other readers are fixed, this routine
1004 will go away. Also note that fundamental types should be managed
1005 on a compilation unit basis in a multi-language environment, not
1006 on a linkage unit basis as is done here. */
1010 lookup_fundamental_type (objfile
, typeid)
1011 struct objfile
*objfile
;
1014 register struct type
**typep
;
1015 register int nbytes
;
1017 if (typeid < 0 || typeid >= FT_NUM_MEMBERS
)
1019 error ("internal error - invalid fundamental type id %d", typeid);
1022 /* If this is the first time we need a fundamental type for this objfile
1023 then we need to initialize the vector of type pointers. */
1025 if (objfile
-> fundamental_types
== NULL
)
1027 nbytes
= FT_NUM_MEMBERS
* sizeof (struct type
*);
1028 objfile
-> fundamental_types
= (struct type
**)
1029 obstack_alloc (&objfile
-> type_obstack
, nbytes
);
1030 memset ((char *) objfile
-> fundamental_types
, 0, nbytes
);
1033 /* Look for this particular type in the fundamental type vector. If one is
1034 not found, create and install one appropriate for the current language. */
1036 typep
= objfile
-> fundamental_types
+ typeid;
1039 *typep
= create_fundamental_type (objfile
, typeid);
1045 #if MAINTENANCE_CMDS
1048 print_bit_vector (bits
, nbits
)
1054 for (bitno
= 0; bitno
< nbits
; bitno
++)
1056 if ((bitno
% 8) == 0)
1058 puts_filtered (" ");
1060 if (B_TST (bits
, bitno
))
1062 printf_filtered ("1");
1066 printf_filtered ("0");
1071 /* The args list is a strange beast. It is either terminated by a NULL
1072 pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID
1073 type for normal fixed argcount functions. (FIXME someday)
1074 Also note the first arg should be the "this" pointer, we may not want to
1075 include it since we may get into a infinitely recursive situation. */
1078 print_arg_types (args
, spaces
)
1084 while (*args
!= NULL
)
1086 recursive_dump_type (*args
, spaces
+ 2);
1087 if ((*args
++) -> code
== TYPE_CODE_VOID
)
1096 dump_fn_fieldlists (type
, spaces
)
1104 printfi_filtered (spaces
, "fn_fieldlists 0x%x\n",
1105 TYPE_FN_FIELDLISTS (type
));
1106 for (method_idx
= 0; method_idx
< TYPE_NFN_FIELDS (type
); method_idx
++)
1108 f
= TYPE_FN_FIELDLIST1 (type
, method_idx
);
1109 printfi_filtered (spaces
+ 2, "[%d] name '%s' (0x%x) length %d\n",
1111 TYPE_FN_FIELDLIST_NAME (type
, method_idx
),
1112 TYPE_FN_FIELDLIST_NAME (type
, method_idx
),
1113 TYPE_FN_FIELDLIST_LENGTH (type
, method_idx
));
1114 for (overload_idx
= 0;
1115 overload_idx
< TYPE_FN_FIELDLIST_LENGTH (type
, method_idx
);
1118 printfi_filtered (spaces
+ 4, "[%d] physname '%s' (0x%x)\n",
1120 TYPE_FN_FIELD_PHYSNAME (f
, overload_idx
),
1121 TYPE_FN_FIELD_PHYSNAME (f
, overload_idx
));
1122 printfi_filtered (spaces
+ 8, "type 0x%x\n",
1123 TYPE_FN_FIELD_TYPE (f
, overload_idx
));
1124 recursive_dump_type (TYPE_FN_FIELD_TYPE (f
, overload_idx
),
1126 printfi_filtered (spaces
+ 8, "args 0x%x\n",
1127 TYPE_FN_FIELD_ARGS (f
, overload_idx
));
1128 print_arg_types (TYPE_FN_FIELD_ARGS (f
, overload_idx
), spaces
);
1129 printfi_filtered (spaces
+ 8, "fcontext 0x%x\n",
1130 TYPE_FN_FIELD_FCONTEXT (f
, overload_idx
));
1131 printfi_filtered (spaces
+ 8, "is_const %d\n",
1132 TYPE_FN_FIELD_CONST (f
, overload_idx
));
1133 printfi_filtered (spaces
+ 8, "is_volatile %d\n",
1134 TYPE_FN_FIELD_VOLATILE (f
, overload_idx
));
1135 printfi_filtered (spaces
+ 8, "is_private %d\n",
1136 TYPE_FN_FIELD_PRIVATE (f
, overload_idx
));
1137 printfi_filtered (spaces
+ 8, "is_protected %d\n",
1138 TYPE_FN_FIELD_PROTECTED (f
, overload_idx
));
1139 printfi_filtered (spaces
+ 8, "is_stub %d\n",
1140 TYPE_FN_FIELD_STUB (f
, overload_idx
));
1141 printfi_filtered (spaces
+ 8, "voffset %u\n",
1142 TYPE_FN_FIELD_VOFFSET (f
, overload_idx
));
1148 print_cplus_stuff (type
, spaces
)
1152 printfi_filtered (spaces
, "n_baseclasses %d\n",
1153 TYPE_N_BASECLASSES (type
));
1154 printfi_filtered (spaces
, "nfn_fields %d\n",
1155 TYPE_NFN_FIELDS (type
));
1156 printfi_filtered (spaces
, "nfn_fields_total %d\n",
1157 TYPE_NFN_FIELDS_TOTAL (type
));
1158 if (TYPE_N_BASECLASSES (type
) > 0)
1160 printfi_filtered (spaces
, "virtual_field_bits (%d bits at *0x%x)",
1161 TYPE_N_BASECLASSES (type
),
1162 TYPE_FIELD_VIRTUAL_BITS (type
));
1163 print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type
),
1164 TYPE_N_BASECLASSES (type
));
1165 puts_filtered ("\n");
1167 if (TYPE_NFIELDS (type
) > 0)
1169 if (TYPE_FIELD_PRIVATE_BITS (type
) != NULL
)
1171 printfi_filtered (spaces
, "private_field_bits (%d bits at *0x%x)",
1172 TYPE_NFIELDS (type
),
1173 TYPE_FIELD_PRIVATE_BITS (type
));
1174 print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type
),
1175 TYPE_NFIELDS (type
));
1176 puts_filtered ("\n");
1178 if (TYPE_FIELD_PROTECTED_BITS (type
) != NULL
)
1180 printfi_filtered (spaces
, "protected_field_bits (%d bits at *0x%x)",
1181 TYPE_NFIELDS (type
),
1182 TYPE_FIELD_PROTECTED_BITS (type
));
1183 print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type
),
1184 TYPE_NFIELDS (type
));
1185 puts_filtered ("\n");
1188 if (TYPE_NFN_FIELDS (type
) > 0)
1190 dump_fn_fieldlists (type
, spaces
);
1195 recursive_dump_type (type
, spaces
)
1201 printfi_filtered (spaces
, "type node 0x%x\n", type
);
1202 printfi_filtered (spaces
, "name '%s' (0x%x)\n", TYPE_NAME (type
),
1203 TYPE_NAME (type
) ? TYPE_NAME (type
) : "<NULL>");
1204 printfi_filtered (spaces
, "code 0x%x ", TYPE_CODE (type
));
1205 switch (TYPE_CODE (type
))
1207 case TYPE_CODE_UNDEF
:
1208 printf_filtered ("(TYPE_CODE_UNDEF)");
1211 printf_filtered ("(TYPE_CODE_PTR)");
1213 case TYPE_CODE_ARRAY
:
1214 printf_filtered ("(TYPE_CODE_ARRAY)");
1216 case TYPE_CODE_STRUCT
:
1217 printf_filtered ("(TYPE_CODE_STRUCT)");
1219 case TYPE_CODE_UNION
:
1220 printf_filtered ("(TYPE_CODE_UNION)");
1222 case TYPE_CODE_ENUM
:
1223 printf_filtered ("(TYPE_CODE_ENUM)");
1225 case TYPE_CODE_FUNC
:
1226 printf_filtered ("(TYPE_CODE_FUNC)");
1229 printf_filtered ("(TYPE_CODE_INT)");
1232 printf_filtered ("(TYPE_CODE_FLT)");
1234 case TYPE_CODE_VOID
:
1235 printf_filtered ("(TYPE_CODE_VOID)");
1238 printf_filtered ("(TYPE_CODE_SET)");
1240 case TYPE_CODE_RANGE
:
1241 printf_filtered ("(TYPE_CODE_RANGE)");
1243 case TYPE_CODE_STRING
:
1244 printf_filtered ("(TYPE_CODE_STRING)");
1246 case TYPE_CODE_ERROR
:
1247 printf_filtered ("(TYPE_CODE_ERROR)");
1249 case TYPE_CODE_MEMBER
:
1250 printf_filtered ("(TYPE_CODE_MEMBER)");
1252 case TYPE_CODE_METHOD
:
1253 printf_filtered ("(TYPE_CODE_METHOD)");
1256 printf_filtered ("(TYPE_CODE_REF)");
1258 case TYPE_CODE_CHAR
:
1259 printf_filtered ("(TYPE_CODE_CHAR)");
1261 case TYPE_CODE_BOOL
:
1262 printf_filtered ("(TYPE_CODE_BOOL)");
1265 printf_filtered ("(UNKNOWN TYPE CODE)");
1268 puts_filtered ("\n");
1269 printfi_filtered (spaces
, "length %d\n", TYPE_LENGTH (type
));
1270 printfi_filtered (spaces
, "objfile 0x%x\n", TYPE_OBJFILE (type
));
1271 printfi_filtered (spaces
, "target_type 0x%x\n", TYPE_TARGET_TYPE (type
));
1272 if (TYPE_TARGET_TYPE (type
) != NULL
)
1274 recursive_dump_type (TYPE_TARGET_TYPE (type
), spaces
+ 2);
1276 printfi_filtered (spaces
, "pointer_type 0x%x\n",
1277 TYPE_POINTER_TYPE (type
));
1278 printfi_filtered (spaces
, "reference_type 0x%x\n",
1279 TYPE_REFERENCE_TYPE (type
));
1280 printfi_filtered (spaces
, "function_type 0x%x\n",
1281 TYPE_FUNCTION_TYPE (type
));
1282 printfi_filtered (spaces
, "flags 0x%x", TYPE_FLAGS (type
));
1283 if (TYPE_FLAGS (type
) & TYPE_FLAG_UNSIGNED
)
1285 puts_filtered (" TYPE_FLAG_UNSIGNED");
1287 if (TYPE_FLAGS (type
) & TYPE_FLAG_SIGNED
)
1289 puts_filtered (" TYPE_FLAG_SIGNED");
1291 if (TYPE_FLAGS (type
) & TYPE_FLAG_STUB
)
1293 puts_filtered (" TYPE_FLAG_STUB");
1295 puts_filtered ("\n");
1296 printfi_filtered (spaces
, "nfields %d 0x%x\n", TYPE_NFIELDS (type
),
1297 TYPE_FIELDS (type
));
1298 for (idx
= 0; idx
< TYPE_NFIELDS (type
); idx
++)
1300 printfi_filtered (spaces
+ 2,
1301 "[%d] bitpos %d bitsize %d type 0x%x name '%s' (0x%x)\n",
1302 idx
, TYPE_FIELD_BITPOS (type
, idx
),
1303 TYPE_FIELD_BITSIZE (type
, idx
),
1304 TYPE_FIELD_TYPE (type
, idx
),
1305 TYPE_FIELD_NAME (type
, idx
),
1306 TYPE_FIELD_NAME (type
, idx
) != NULL
1307 ? TYPE_FIELD_NAME (type
, idx
)
1309 if (TYPE_FIELD_TYPE (type
, idx
) != NULL
)
1311 recursive_dump_type (TYPE_FIELD_TYPE (type
, idx
), spaces
+ 4);
1314 printfi_filtered (spaces
, "vptr_basetype 0x%x\n",
1315 TYPE_VPTR_BASETYPE (type
));
1316 if (TYPE_VPTR_BASETYPE (type
) != NULL
)
1318 recursive_dump_type (TYPE_VPTR_BASETYPE (type
), spaces
+ 2);
1320 printfi_filtered (spaces
, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type
));
1321 switch (TYPE_CODE (type
))
1323 case TYPE_CODE_METHOD
:
1324 case TYPE_CODE_FUNC
:
1325 printfi_filtered (spaces
, "arg_types 0x%x\n", TYPE_ARG_TYPES (type
));
1326 print_arg_types (TYPE_ARG_TYPES (type
), spaces
);
1329 case TYPE_CODE_STRUCT
:
1330 printfi_filtered (spaces
, "cplus_stuff 0x%x\n",
1331 TYPE_CPLUS_SPECIFIC (type
));
1332 print_cplus_stuff (type
, spaces
);
1336 /* We have to pick one of the union types to be able print and test
1337 the value. Pick cplus_struct_type, even though we know it isn't
1338 any particular one. */
1339 printfi_filtered (spaces
, "type_specific 0x%x",
1340 TYPE_CPLUS_SPECIFIC (type
));
1341 if (TYPE_CPLUS_SPECIFIC (type
) != NULL
)
1343 printf_filtered (" (unknown data form)");
1345 printf_filtered ("\n");
1351 #endif /* MAINTENANCE_CMDS */
1354 _initialize_gdbtypes ()
1357 init_type (TYPE_CODE_VOID
, 1,
1359 "void", (struct objfile
*) NULL
);
1361 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
1363 "char", (struct objfile
*) NULL
);
1364 builtin_type_signed_char
=
1365 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
1367 "signed char", (struct objfile
*) NULL
);
1368 builtin_type_unsigned_char
=
1369 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
1371 "unsigned char", (struct objfile
*) NULL
);
1372 builtin_type_short
=
1373 init_type (TYPE_CODE_INT
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
1375 "short", (struct objfile
*) NULL
);
1376 builtin_type_unsigned_short
=
1377 init_type (TYPE_CODE_INT
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
1379 "unsigned short", (struct objfile
*) NULL
);
1381 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1383 "int", (struct objfile
*) NULL
);
1384 builtin_type_unsigned_int
=
1385 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1387 "unsigned int", (struct objfile
*) NULL
);
1389 init_type (TYPE_CODE_INT
, TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
1391 "long", (struct objfile
*) NULL
);
1392 builtin_type_unsigned_long
=
1393 init_type (TYPE_CODE_INT
, TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
1395 "unsigned long", (struct objfile
*) NULL
);
1396 builtin_type_long_long
=
1397 init_type (TYPE_CODE_INT
, TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
1399 "long long", (struct objfile
*) NULL
);
1400 builtin_type_unsigned_long_long
=
1401 init_type (TYPE_CODE_INT
, TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
1403 "unsigned long long", (struct objfile
*) NULL
);
1404 builtin_type_float
=
1405 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
1407 "float", (struct objfile
*) NULL
);
1408 builtin_type_double
=
1409 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
1411 "double", (struct objfile
*) NULL
);
1412 builtin_type_long_double
=
1413 init_type (TYPE_CODE_FLT
, TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
1415 "long double", (struct objfile
*) NULL
);
1416 builtin_type_complex
=
1417 init_type (TYPE_CODE_FLT
, TARGET_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
1419 "complex", (struct objfile
*) NULL
);
1420 builtin_type_double_complex
=
1421 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
1423 "double complex", (struct objfile
*) NULL
);
1424 builtin_type_string
=
1425 init_type (TYPE_CODE_STRING
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
1427 "string", (struct objfile
*) NULL
);