/* Internal type definitions for GDB.
- Copyright (C) 1992-1994, 1996, 1998-2000 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
/* No sign for this type. In C++, "char", "signed char", and "unsigned
char" are distinct types; so we need an extra flag to indicate the
- absence ofa sign! */
+ absence of a sign! */
#define TYPE_FLAG_NOSIGN (1 << 1)
char *tag_name;
- /* 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. */
-
+ /* Length of storage for a value of this type. This is what
+ sizeof(type) would return; use it for address arithmetic,
+ memory reads and writes, etc. This size includes padding. For
+ example, an i386 extended-precision floating point value really
+ only occupies ten bytes, but most ABI's declare its size to be
+ 12 bytes, to preserve alignment. A `struct type' representing
+ such a floating-point type would have a `length' value of 12,
+ even though the last two bytes are unused.
+
+ There's a bit of a host/target mess here, if you're concerned
+ about machines whose bytes aren't eight bits long, or who don't
+ have byte-addressed memory. Various places pass this to memcpy
+ and such, meaning it must be in units of host bytes. Various
+ other places expect they can calculate addresses by adding it
+ and such, meaning it must be in units of target bytes. 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. However, this would still fail to address
+ machines based on a ternary or decimal representation. */
unsigned length;
/* FIXME, these should probably be restricted to a Fortran-specific
struct cplus_struct_type *cplus_stuff;
+ /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to the
+ floatformat object that describes the floating-point value
+ that resides within the type. */
+
+ const struct floatformat *floatformat;
}
type_specific;
};
#define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
#define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
#define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
+#define TYPE_FLOATFORMAT(thistype) (thistype)->type_specific.floatformat
#define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
#define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
extern struct type *builtin_type_bool;
/* Address/pointer types: */
-/* (C) Language pointer type. Some target platforms use an implicitly
- {sign,zero} -extended 32 bit C language pointer on a 64 bit ISA. */
-extern struct type *builtin_type_ptr;
+/* (C) Language `pointer to data' type. Some target platforms use an
+ implicitly {sign,zero} -extended 32 bit C language pointer on a 64
+ bit ISA. */
+extern struct type *builtin_type_void_data_ptr;
+
+/* (C) Language `pointer to function returning void' type. Since
+ ANSI, C standards have explicitly said that pointers to functions
+ and pointers to data are not interconvertible --- that is, you
+ can't cast a function pointer to void * and back, and expect to get
+ the same value. However, all function pointer types are
+ interconvertible, so void (*) () can server as a generic function
+ pointer. */
+extern struct type *builtin_type_void_func_ptr;
+
/* The target CPU's address type. This is the ISA address size. */
extern struct type *builtin_type_CORE_ADDR;
/* The symbol table address type. Some object file formats have a 32
extern struct type *builtin_type_v4hi;
extern struct type *builtin_type_v2si;
+/* Explicit floating-point formats. See "floatformat.h". */
+extern struct type *builtin_type_ieee_single_big;
+extern struct type *builtin_type_ieee_single_little;
+extern struct type *builtin_type_ieee_double_big;
+extern struct type *builtin_type_ieee_double_little;
+extern struct type *builtin_type_ieee_double_littlebyte_bigword;
+extern struct type *builtin_type_i387_ext;
+extern struct type *builtin_type_m68881_ext;
+extern struct type *builtin_type_i960_ext;
+extern struct type *builtin_type_m88110_ext;
+extern struct type *builtin_type_m88110_harris_ext;
+extern struct type *builtin_type_arm_ext_big;
+extern struct type *builtin_type_arm_ext_littlebyte_bigword;
+extern struct type *builtin_type_ia64_spill_big;
+extern struct type *builtin_type_ia64_spill_little;
+extern struct type *builtin_type_ia64_quad_big;
+extern struct type *builtin_type_ia64_quad_little;
+
/* We use this for the '/c' print format, because builtin_type_char is
just a one-byte integral type, which languages less laid back than
C will print as ... well, a one-byte integral type. */
extern struct type *builtin_type_f_character;
extern struct type *builtin_type_f_integer;
+extern struct type *builtin_type_f_integer_s2;
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;
/* Maximum and minimum values of built-in types */
#define MAX_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
- : MAX_OF_SIZE(TYPE_LENGTH(t))
+ (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
+ : MAX_OF_SIZE(TYPE_LENGTH(t)))
#define MIN_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
- : MIN_OF_SIZE(TYPE_LENGTH(t))
+ (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
+ : MIN_OF_SIZE(TYPE_LENGTH(t)))
/* Allocate space for storing data associated with a particular type.
We ensure that the space is allocated using the same mechanism that
extern void maintenance_print_type (char *, int);
-/* typeprint.c */
-
-extern void print_type_scalar (struct type *, LONGEST, struct ui_file *);
-
#endif /* GDBTYPES_H */
projects / deliverable / binutils-gdb.git / blobdiff