/* Internal type definitions for GDB.
- Copyright (C) 1992 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if !defined (GDBTYPES_H)
#define GDBTYPES_H 1
-/* When gdb creates fundamental types, it uses one of the following
- type identifiers. The identifiers are used to index a vector of
- pointers to any types that are created. */
+/* Codes for `fundamental types'. This is a monstrosity based on the
+ bogus notion that there are certain compiler-independent
+ `fundamental types'. None of these is well-defined (how big is
+ FT_SHORT? Does it depend on the language? How does the
+ language-specific code know which type to correlate to FT_SHORT?) */
#define FT_VOID 0
#define FT_BOOLEAN 1
TYPE_CODE_FUNC, /* Function type */
TYPE_CODE_INT, /* Integer type */
- /* Floating type. This is *NOT* a complex type. Complex types, when
- we have them, will have their own type code (or TYPE_CODE_ERROR if
- we can parse a complex type but not manipulate it). There are parts
+ /* Floating type. This is *NOT* a complex type. Beware, there are parts
of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
TYPE_CODE_FLT,
- /* Void type (values zero length; the length field is ignored). */
+ /* Void type. The length field specifies the length (probably always
+ one) which is used in pointer arithmetic involving pointers to
+ this type, but actually dereferencing such a pointer is invalid;
+ a void type has no length and no actual representation in memory
+ or registers. A pointer to a void type is a generic pointer. */
TYPE_CODE_VOID,
TYPE_CODE_SET, /* Pascal sets */
TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
- TYPE_CODE_STRING, /* String types, distinct from array of char */
- TYPE_CODE_BITSTRING, /* String of bits, distinct from bool array */
+
+ /* A string type which is like an array of character but prints
+ differently (at least for CHILL). It does not contain a length
+ field as Pascal strings (for many Pascals, anyway) do; if we want
+ to deal with such strings, we should use a new type code. */
+ TYPE_CODE_STRING,
+
+ /* String of bits; like TYPE_CODE_SET but prints differently (at least
+ for CHILL). */
+ TYPE_CODE_BITSTRING,
/* Unknown type. The length field is valid if we were able to
deduce that much about the type, or 0 if we don't even know that. */
TYPE_CODE_METHOD, /* Method type */
TYPE_CODE_REF, /* C++ Reference types */
- /* Modula-2 */
TYPE_CODE_CHAR, /* *real* character type */
- TYPE_CODE_BOOL /* BOOLEAN type */
+
+ /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
+ (e.g. FORTRAN "logical" used as unsigned int). */
+ TYPE_CODE_BOOL,
+
+ /* Fortran */
+ TYPE_CODE_COMPLEX, /* Complex float */
+
+ TYPE_CODE_TYPEDEF
};
/* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
- alias for TYPE_CODE_STRUCT. Eventually these should probably be
- officially distinct types within gdb. */
+ alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
+ "class" attribute. Perhaps we should actually have a separate TYPE_CODE
+ so that we can print "class" or "struct" depending on what the debug
+ info said. It's not clear we should bother. */
#define TYPE_CODE_CLASS TYPE_CODE_STRUCT
/* Some bits for the type's flags word. */
-/* Explicitly unsigned integer type */
+/* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
+ type is signed. */
#define TYPE_FLAG_UNSIGNED (1 << 0)
-/* Explicitly signed integer type */
-
-#define TYPE_FLAG_SIGNED (1 << 1)
-
/* This appears in a type's flags word if it is a stub type (e.g., if
someone referenced a type that wasn't defined in a source file
via (struct sir_not_appearing_in_this_film *)). */
#define TYPE_FLAG_STUB (1 << 2)
+/* The target type of this type is a stub type, and this type needs to
+ be updated if it gets un-stubbed in check_typedef.
+ Used for arrays and ranges, in which TYPE_LENGTH of the array/range
+ gets set based on the TYPE_LENGTH of the target type.
+ Also, set for TYPE_CODE_TYPEDEF. */
+
+#define TYPE_FLAG_TARGET_STUB (1 << 3)
struct type
{
char *tag_name;
- /* Length, in units of TARGET_CHAR_BIT bits,
- of storage for a value of this type */
+ /* Length of storage for a value of this type. Various places pass
+ this to memcpy and such, meaning it must be in units of
+ HOST_CHAR_BIT. Various other places expect they can calculate
+ addresses by adding it and such, meaning it must be in units of
+ TARGET_CHAR_BIT. For some DSP targets, in which HOST_CHAR_BIT
+ will (presumably) be 8 and TARGET_CHAR_BIT will be (say) 32, this
+ is a problem. One fix would be to make this field in bits
+ (requiring that it always be a multiple of HOST_CHAR_BIT and
+ TARGET_CHAR_BIT)--the other choice would be to make it
+ consistently in units of HOST_CHAR_BIT. */
unsigned length;
+ /* FIXME, these should probably be restricted to a Fortran-specific
+ field in some fashion. */
+#define BOUND_CANNOT_BE_DETERMINED 5
+#define BOUND_BY_REF_ON_STACK 4
+#define BOUND_BY_VALUE_ON_STACK 3
+#define BOUND_BY_REF_IN_REG 2
+#define BOUND_BY_VALUE_IN_REG 1
+#define BOUND_SIMPLE 0
+ int upper_bound_type;
+ int lower_bound_type;
+
/* Every type is now associated with a particular objfile, and the
type is allocated on the type_obstack for that objfile. One problem
however, is that there are times when gdb allocates new types while
For an array type, describes the type of the elements.
For a function or method type, describes the type of the return value.
For a range type, describes the type of the full range.
+ For a complex type, describes the type of each coordinate.
Unused otherwise. */
struct type *target_type;
struct type *reference_type;
- /* Type that is a function returning this type.
- NULL if no such function type is known here.
- The debugger may add the address of such a type
- if it has to construct one later. */
-
- struct type *function_type;
-
/* Flags about this type. */
short flags;
For range types, there are two "fields",
the minimum and maximum values (both inclusive).
For enum types, each possible value is described by one "field".
+ For a function type, a "field" for each parameter type.
For C++ classes, there is one field for each base class (if it is
a derived class) plus one field for each class data member. Member
functions are recorded elsewhere.
short nfn_fields;
- /* Number of methods described for this type plus all the
+ /* Number of methods described for this type, not including the
methods that it derives from. */
int nfn_fields_total;
B_TYPE *protected_field_bits;
+ /* for classes with fields to be ignored, either this is optimized out
+ or this field has length 0 */
+
+ B_TYPE *ignore_field_bits;
+
/* For classes, structures, and unions, a description of each field,
which consists of an overloaded name, followed by the types of
arguments that the method expects, and then the name after it
/* The argument list. Only valid if is_stub is clear. Contains
the type of each argument, including `this', and ending with
- a NULL pointer after the last argument. */
+ a NULL pointer after the last argument. Should not contain
+ a `this' pointer for static member functions. */
struct type **args;
#define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
-#define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
+/* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
+ But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
+ so you only have to call check_typedef once. Since allocate_value
+ calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
#define TYPE_LENGTH(thistype) (thistype)->length
#define TYPE_OBJFILE(thistype) (thistype)->objfile
#define TYPE_FLAGS(thistype) (thistype)->flags
#define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
+/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
+ type, you need to do TYPE_CODE (check_type (this_type)). */
#define TYPE_CODE(thistype) (thistype)->code
#define TYPE_NFIELDS(thistype) (thistype)->nfields
#define TYPE_FIELDS(thistype) (thistype)->fields
+#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
+#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
+#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
+
+/* Moto-specific stuff for FORTRAN arrays */
+
+#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
+#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
+
+#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
+ (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
+
+#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
+ (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
+
/* C++ */
#define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
#define TYPE_FIELD_PROTECTED_BITS(thistype) \
TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
+#define TYPE_FIELD_IGNORE_BITS(thistype) \
+ TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
#define TYPE_FIELD_VIRTUAL_BITS(thistype) \
TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
#define SET_TYPE_FIELD_PRIVATE(thistype, n) \
B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
#define SET_TYPE_FIELD_PROTECTED(thistype, n) \
B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
+#define SET_TYPE_FIELD_IGNORE(thistype, n) \
+ B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
#define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
#define TYPE_FIELD_PRIVATE(thistype, n) \
#define TYPE_FIELD_PROTECTED(thistype, n) \
(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
: B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
+#define TYPE_FIELD_IGNORE(thistype, n) \
+ (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
+ : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
#define TYPE_FIELD_VIRTUAL(thistype, n) \
B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
extern struct type *builtin_type_chill_ulong;
extern struct type *builtin_type_chill_real;
-/* CC_HAS_LONG_LONG is defined if the host has "long long". */
-
-#ifdef CC_HAS_LONG_LONG
-
-#define BUILTIN_TYPE_LONGEST builtin_type_long_long
-#define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
-
-#else /* not CC_HAS_LONG_LONG. */
-
-#define BUILTIN_TYPE_LONGEST builtin_type_long
-#define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
-
-#endif /* not CC_HAS_LONG_LONG. */
+/* Fortran (F77) types */
+
+extern struct type *builtin_type_f_character;
+extern struct type *builtin_type_f_integer;
+extern struct type *builtin_type_f_logical;
+extern struct type *builtin_type_f_logical_s1;
+extern struct type *builtin_type_f_logical_s2;
+extern struct type *builtin_type_f_integer;
+extern struct type *builtin_type_f_integer_s2;
+extern struct type *builtin_type_f_real;
+extern struct type *builtin_type_f_real_s8;
+extern struct type *builtin_type_f_real_s16;
+extern struct type *builtin_type_f_complex_s8;
+extern struct type *builtin_type_f_complex_s16;
+extern struct type *builtin_type_f_complex_s32;
+extern struct type *builtin_type_f_void;
/* Maximum and minimum values of built-in types */
extern struct type *
create_string_type PARAMS ((struct type *, struct type *));
+extern struct type *create_set_type PARAMS ((struct type *, struct type *));
+
+extern int chill_varying_type PARAMS ((struct type*));
+
extern struct type *
lookup_unsigned_typename PARAMS ((char *));
extern struct type *
lookup_signed_typename PARAMS ((char *));
-extern void
-check_stub_type PARAMS ((struct type *));
+extern struct type *
+check_typedef PARAMS ((struct type *));
+
+#define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
extern void
check_stub_method PARAMS ((struct type *, int, int));
extern void
fill_in_vptr_fieldno PARAMS ((struct type *));
+extern int get_discrete_bounds PARAMS ((struct type*, LONGEST*, LONGEST*));
+
#if MAINTENANCE_CMDS
extern void recursive_dump_type PARAMS ((struct type *, int));
#endif
/* printcmd.c */
extern void
-print_scalar_formatted PARAMS ((char *, struct type *, int, int, FILE *));
+print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
+
+extern int can_dereference PARAMS ((struct type *));
#if MAINTENANCE_CMDS
extern void maintenance_print_type PARAMS ((char *, int));
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