&floatformat_ibm_long_double
};
-struct type *builtin_type_ieee_single;
-struct type *builtin_type_ieee_double;
-struct type *builtin_type_i387_ext;
-struct type *builtin_type_m68881_ext;
-struct type *builtin_type_arm_ext;
-struct type *builtin_type_ia64_spill;
-struct type *builtin_type_ia64_quad;
int opaque_type_resolution = 1;
static void
static void print_cplus_stuff (struct type *, int);
-/* Alloc a new type structure and fill it with some defaults. If
- OBJFILE is non-NULL, then allocate the space for the type structure
- in that objfile's objfile_obstack. Otherwise allocate the new type
- structure by xmalloc () (for permanent types). */
+/* Allocate a new OBJFILE-associated type structure and fill it
+ with some defaults. Space for the type structure is allocated
+ on the objfile's objfile_obstack. */
struct type *
alloc_type (struct objfile *objfile)
{
struct type *type;
+ gdb_assert (objfile != NULL);
+
/* Alloc the structure and start off with all fields zeroed. */
+ type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type);
+ TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack,
+ struct main_type);
+ OBJSTAT (objfile, n_types++);
- if (objfile == NULL)
- {
- type = XZALLOC (struct type);
- TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type);
- }
- else
- {
- type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type);
- TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack,
- struct main_type);
- OBJSTAT (objfile, n_types++);
- }
+ TYPE_OBJFILE_OWNED (type) = 1;
+ TYPE_OWNER (type).objfile = objfile;
/* Initialize the fields that might not be zero. */
TYPE_CODE (type) = TYPE_CODE_UNDEF;
- TYPE_OBJFILE (type) = objfile;
TYPE_VPTR_FIELDNO (type) = -1;
TYPE_CHAIN (type) = type; /* Chain back to itself. */
return type;
}
+/* Allocate a new GDBARCH-associated type structure and fill it
+ with some defaults. Space for the type structure is allocated
+ on the heap. */
+
+struct type *
+alloc_type_arch (struct gdbarch *gdbarch)
+{
+ struct type *type;
+
+ gdb_assert (gdbarch != NULL);
+
+ /* Alloc the structure and start off with all fields zeroed. */
+
+ type = XZALLOC (struct type);
+ TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type);
+
+ TYPE_OBJFILE_OWNED (type) = 0;
+ TYPE_OWNER (type).gdbarch = gdbarch;
+
+ /* Initialize the fields that might not be zero. */
+
+ TYPE_CODE (type) = TYPE_CODE_UNDEF;
+ TYPE_VPTR_FIELDNO (type) = -1;
+ TYPE_CHAIN (type) = type; /* Chain back to itself. */
+
+ return type;
+}
+
+/* If TYPE is objfile-associated, allocate a new type structure
+ associated with the same objfile. If TYPE is gdbarch-associated,
+ allocate a new type structure associated with the same gdbarch. */
+
+struct type *
+alloc_type_copy (const struct type *type)
+{
+ if (TYPE_OBJFILE_OWNED (type))
+ return alloc_type (TYPE_OWNER (type).objfile);
+ else
+ return alloc_type_arch (TYPE_OWNER (type).gdbarch);
+}
+
+/* If TYPE is gdbarch-associated, return that architecture.
+ If TYPE is objfile-associated, return that objfile's architecture. */
+
+struct gdbarch *
+get_type_arch (const struct type *type)
+{
+ if (TYPE_OBJFILE_OWNED (type))
+ return get_objfile_arch (TYPE_OWNER (type).objfile);
+ else
+ return TYPE_OWNER (type).gdbarch;
+}
+
+
/* Alloc a new type instance structure, fill it with some defaults,
and point it at OLDTYPE. Allocate the new type instance from the
same place as OLDTYPE. */
/* Allocate the structure. */
- if (TYPE_OBJFILE (oldtype) == NULL)
+ if (! TYPE_OBJFILE_OWNED (oldtype))
type = XZALLOC (struct type);
else
type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack,
}
/* Clear all remnants of the previous type at TYPE, in preparation for
- replacing it with something else. */
+ replacing it with something else. Preserve owner information. */
static void
smash_type (struct type *type)
{
+ int objfile_owned = TYPE_OBJFILE_OWNED (type);
+ union type_owner owner = TYPE_OWNER (type);
+
memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type));
+ /* Restore owner information. */
+ TYPE_OBJFILE_OWNED (type) = objfile_owned;
+ TYPE_OWNER (type) = owner;
+
/* For now, delete the rings. */
TYPE_CHAIN (type) = type;
make_pointer_type (struct type *type, struct type **typeptr)
{
struct type *ntype; /* New type */
- struct objfile *objfile;
struct type *chain;
ntype = TYPE_POINTER_TYPE (type);
if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
{
- ntype = alloc_type (TYPE_OBJFILE (type));
+ ntype = alloc_type_copy (type);
if (typeptr)
*typeptr = ntype;
}
else /* We have storage, but need to reset it. */
{
ntype = *typeptr;
- objfile = TYPE_OBJFILE (ntype);
chain = TYPE_CHAIN (ntype);
smash_type (ntype);
TYPE_CHAIN (ntype) = chain;
- TYPE_OBJFILE (ntype) = objfile;
}
TYPE_TARGET_TYPE (ntype) = type;
/* FIXME! Assume the machine has only one representation for
pointers! */
- TYPE_LENGTH (ntype) =
- gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
+ TYPE_LENGTH (ntype)
+ = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT;
TYPE_CODE (ntype) = TYPE_CODE_PTR;
/* Mark pointers as unsigned. The target converts between pointers
make_reference_type (struct type *type, struct type **typeptr)
{
struct type *ntype; /* New type */
- struct objfile *objfile;
struct type *chain;
ntype = TYPE_REFERENCE_TYPE (type);
if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
{
- ntype = alloc_type (TYPE_OBJFILE (type));
+ ntype = alloc_type_copy (type);
if (typeptr)
*typeptr = ntype;
}
else /* We have storage, but need to reset it. */
{
ntype = *typeptr;
- objfile = TYPE_OBJFILE (ntype);
chain = TYPE_CHAIN (ntype);
smash_type (ntype);
TYPE_CHAIN (ntype) = chain;
- TYPE_OBJFILE (ntype) = objfile;
}
TYPE_TARGET_TYPE (ntype) = type;
references, and that it matches the (only) representation for
pointers! */
- TYPE_LENGTH (ntype) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
+ TYPE_LENGTH (ntype) =
+ gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT;
TYPE_CODE (ntype) = TYPE_CODE_REF;
if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */
make_function_type (struct type *type, struct type **typeptr)
{
struct type *ntype; /* New type */
- struct objfile *objfile;
if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
{
- ntype = alloc_type (TYPE_OBJFILE (type));
+ ntype = alloc_type_copy (type);
if (typeptr)
*typeptr = ntype;
}
else /* We have storage, but need to reset it. */
{
ntype = *typeptr;
- objfile = TYPE_OBJFILE (ntype);
smash_type (ntype);
- TYPE_OBJFILE (ntype) = objfile;
}
TYPE_TARGET_TYPE (ntype) = type;
/* Identify address space identifier by name --
return the integer flag defined in gdbtypes.h. */
extern int
-address_space_name_to_int (char *space_identifier)
+address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier)
{
- struct gdbarch *gdbarch = current_gdbarch;
int type_flags;
/* Check for known address space delimiters. */
if (!strcmp (space_identifier, "code"))
gdbtypes.h -- return the string version of the adress space name. */
const char *
-address_space_int_to_name (int space_flag)
+address_space_int_to_name (struct gdbarch *gdbarch, int space_flag)
{
- struct gdbarch *gdbarch = current_gdbarch;
if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE)
return "code";
else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE)
{
struct type *mtype;
- mtype = alloc_type (TYPE_OBJFILE (type));
+ mtype = alloc_type_copy (type);
smash_to_memberptr_type (mtype, domain, type);
return mtype;
}
{
struct type *mtype;
- mtype = alloc_type (TYPE_OBJFILE (to_type));
+ mtype = alloc_type_copy (to_type);
TYPE_TARGET_TYPE (mtype) = to_type;
TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type);
TYPE_LENGTH (mtype) = cplus_method_ptr_size (to_type);
{
struct type *mtype;
- mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL,
- TYPE_OBJFILE (type));
+ mtype = alloc_type_copy (type);
+ TYPE_CODE (mtype) = TYPE_CODE_METHOD;
+ TYPE_LENGTH (mtype) = 1;
+ TYPE_STUB (mtype) = 1;
TYPE_TARGET_TYPE (mtype) = type;
/* _DOMAIN_TYPE (mtype) = unknown yet */
return mtype;
struct type *
create_range_type (struct type *result_type, struct type *index_type,
- int low_bound, int high_bound)
+ LONGEST low_bound, LONGEST high_bound)
{
if (result_type == NULL)
- result_type = alloc_type (TYPE_OBJFILE (index_type));
+ result_type = alloc_type_copy (index_type);
TYPE_CODE (result_type) = TYPE_CODE_RANGE;
TYPE_TARGET_TYPE (result_type) = index_type;
if (TYPE_STUB (index_type))
TYPE_TARGET_STUB (result_type) = 1;
else
TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type));
- TYPE_NFIELDS (result_type) = 2;
- TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type,
- TYPE_NFIELDS (result_type)
- * sizeof (struct field));
+ TYPE_RANGE_DATA (result_type) = (struct range_bounds *)
+ TYPE_ZALLOC (result_type, sizeof (struct range_bounds));
TYPE_LOW_BOUND (result_type) = low_bound;
TYPE_HIGH_BOUND (result_type) = high_bound;
LONGEST low_bound, high_bound;
if (result_type == NULL)
- {
- result_type = alloc_type (TYPE_OBJFILE (range_type));
- }
+ result_type = alloc_type_copy (range_type);
+
TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
TYPE_TARGET_TYPE (result_type) = element_type;
if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
lookup_array_range_type (struct type *element_type,
int low_bound, int high_bound)
{
- struct gdbarch *gdbarch = current_gdbarch;
+ struct gdbarch *gdbarch = get_type_arch (element_type);
struct type *index_type = builtin_type (gdbarch)->builtin_int;
struct type *range_type
= create_range_type (NULL, index_type, low_bound, high_bound);
create_set_type (struct type *result_type, struct type *domain_type)
{
if (result_type == NULL)
- {
- result_type = alloc_type (TYPE_OBJFILE (domain_type));
- }
+ result_type = alloc_type_copy (domain_type);
+
TYPE_CODE (result_type) = TYPE_CODE_SET;
TYPE_NFIELDS (result_type) = 1;
TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field));
return result_type;
}
-void
-append_flags_type_flag (struct type *type, int bitpos, char *name)
-{
- gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS);
- gdb_assert (bitpos < TYPE_NFIELDS (type));
- gdb_assert (bitpos >= 0);
-
- if (name)
- {
- TYPE_FIELD_NAME (type, bitpos) = xstrdup (name);
- TYPE_FIELD_BITPOS (type, bitpos) = bitpos;
- }
- else
- {
- /* Don't show this field to the user. */
- TYPE_FIELD_BITPOS (type, bitpos) = -1;
- }
-}
-
-struct type *
-init_flags_type (char *name, int length)
-{
- int nfields = length * TARGET_CHAR_BIT;
- struct type *type;
-
- type = init_type (TYPE_CODE_FLAGS, length,
- TYPE_FLAG_UNSIGNED, name, NULL);
- TYPE_NFIELDS (type) = nfields;
- TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field));
-
- return type;
-}
-
/* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE
and any array types nested inside it. */
smash_to_memberptr_type (struct type *type, struct type *domain,
struct type *to_type)
{
- struct objfile *objfile;
-
- objfile = TYPE_OBJFILE (type);
-
smash_type (type);
- TYPE_OBJFILE (type) = objfile;
TYPE_TARGET_TYPE (type) = to_type;
TYPE_DOMAIN_TYPE (type) = domain;
/* Assume that a data member pointer is the same size as a normal
pointer. */
- TYPE_LENGTH (type) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT;
+ TYPE_LENGTH (type)
+ = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT;
TYPE_CODE (type) = TYPE_CODE_MEMBERPTR;
}
struct type *to_type, struct field *args,
int nargs, int varargs)
{
- struct objfile *objfile;
-
- objfile = TYPE_OBJFILE (type);
-
smash_type (type);
- TYPE_OBJFILE (type) = objfile;
TYPE_TARGET_TYPE (type) = to_type;
TYPE_DOMAIN_TYPE (type) = domain;
TYPE_FIELDS (type) = args;
If not found, return -1 and ignore BASETYPEP.
Callers should be aware that in some cases (for example,
the type or one of its baseclasses is a stub type and we are
- debugging a .o file), this function will not be able to find the
+ debugging a .o file, or the compiler uses DWARF-2 and is not GCC),
+ this function will not be able to find the
virtual function table pointer, and vptr_fieldno will remain -1 and
vptr_basetype will remain NULL or incomplete. */
if (sym)
TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym);
else /* TYPE_CODE_UNDEF */
- TYPE_TARGET_TYPE (type) = alloc_type (NULL);
+ TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type));
}
type = TYPE_TARGET_TYPE (type);
}
/* Now recompute the length of the array type, based on its
number of elements and the target type's length.
Watch out for Ada null Ada arrays where the high bound
- is smaller than the low bound. */
- const int low_bound = TYPE_LOW_BOUND (range_type);
- const int high_bound = TYPE_HIGH_BOUND (range_type);
- int nb_elements;
-
+ is smaller than the low bound. */
+ const LONGEST low_bound = TYPE_LOW_BOUND (range_type);
+ const LONGEST high_bound = TYPE_HIGH_BOUND (range_type);
+ ULONGEST len;
+
if (high_bound < low_bound)
- nb_elements = 0;
- else
- nb_elements = high_bound - low_bound + 1;
-
- TYPE_LENGTH (type) = nb_elements * TYPE_LENGTH (target_type);
+ len = 0;
+ else {
+ /* For now, we conservatively take the array length to be 0
+ if its length exceeds UINT_MAX. The code below assumes
+ that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1,
+ which is technically not guaranteed by C, but is usually true
+ (because it would be true if x were unsigned with its
+ high-order bit on). It uses the fact that
+ high_bound-low_bound is always representable in
+ ULONGEST and that if high_bound-low_bound+1 overflows,
+ it overflows to 0. We must change these tests if we
+ decide to increase the representation of TYPE_LENGTH
+ from unsigned int to ULONGEST. */
+ ULONGEST ulow = low_bound, uhigh = high_bound;
+ ULONGEST tlen = TYPE_LENGTH (target_type);
+
+ len = tlen * (uhigh - ulow + 1);
+ if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh
+ || len > UINT_MAX)
+ len = 0;
+ }
+ TYPE_LENGTH (type) = len;
TYPE_TARGET_STUB (type) = 0;
}
else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
static void
check_stub_method (struct type *type, int method_id, int signature_id)
{
- struct gdbarch *gdbarch = current_gdbarch;
+ struct gdbarch *gdbarch = get_type_arch (type);
struct fn_field *f;
char *mangled_name = gdb_mangle_name (type, method_id, signature_id);
char *demangled_name = cplus_demangle (mangled_name,
/* Helper function to initialize the standard scalar types.
- If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy of
- the string pointed to by name in the objfile_obstack for that
- objfile, and initialize the type name to that copy. There are
- places (mipsread.c in particular, where init_type is called with a
- NULL value for NAME). */
+ If NAME is non-NULL, then we make a copy of the string pointed
+ to by name in the objfile_obstack for that objfile, and initialize
+ the type name to that copy. There are places (mipsread.c in particular),
+ where init_type is called with a NULL value for NAME). */
struct type *
init_type (enum type_code code, int length, int flags,
if (flags & TYPE_FLAG_FIXED_INSTANCE)
TYPE_FIXED_INSTANCE (type) = 1;
- if ((name != NULL) && (objfile != NULL))
- {
- TYPE_NAME (type) = obsavestring (name, strlen (name),
- &objfile->objfile_obstack);
- }
- else
- {
- TYPE_NAME (type) = name;
- }
+ if (name)
+ TYPE_NAME (type) = obsavestring (name, strlen (name),
+ &objfile->objfile_obstack);
/* C++ fancies. */
return type;
}
-/* Helper function. Create an empty composite type. */
-
-struct type *
-init_composite_type (char *name, enum type_code code)
-{
- struct type *t;
- gdb_assert (code == TYPE_CODE_STRUCT
- || code == TYPE_CODE_UNION);
- t = init_type (code, 0, 0, NULL, NULL);
- TYPE_TAG_NAME (t) = name;
- return t;
-}
-
-/* Helper function. Append a field to a composite type. */
-
-void
-append_composite_type_field_aligned (struct type *t, char *name,
- struct type *field, int alignment)
-{
- struct field *f;
- TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1;
- TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t),
- sizeof (struct field) * TYPE_NFIELDS (t));
- f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]);
- memset (f, 0, sizeof f[0]);
- FIELD_TYPE (f[0]) = field;
- FIELD_NAME (f[0]) = name;
- if (TYPE_CODE (t) == TYPE_CODE_UNION)
- {
- if (TYPE_LENGTH (t) < TYPE_LENGTH (field))
- TYPE_LENGTH (t) = TYPE_LENGTH (field);
- }
- else if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
- {
- TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field);
- if (TYPE_NFIELDS (t) > 1)
- {
- FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1])
- + (TYPE_LENGTH (FIELD_TYPE (f[-1]))
- * TARGET_CHAR_BIT));
-
- if (alignment)
- {
- int left = FIELD_BITPOS (f[0]) % (alignment * TARGET_CHAR_BIT);
- if (left)
- {
- FIELD_BITPOS (f[0]) += left;
- TYPE_LENGTH (t) += left / TARGET_CHAR_BIT;
- }
- }
- }
- }
-}
-
-void
-append_composite_type_field (struct type *t, char *name,
- struct type *field)
-{
- append_composite_type_field_aligned (t, name, field, 0);
-}
-
int
can_dereference (struct type *t)
{
switch (TYPE_CODE (arg))
{
case TYPE_CODE_PTR:
- if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID)
+ if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID
+ && TYPE_CODE (TYPE_TARGET_TYPE (arg)) != TYPE_CODE_VOID)
return VOID_PTR_CONVERSION_BADNESS;
else
return rank_one_type (TYPE_TARGET_TYPE (parm),
}
puts_filtered ("\n");
printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type));
- printfi_filtered (spaces, "objfile ");
- gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout);
+ if (TYPE_OBJFILE_OWNED (type))
+ {
+ printfi_filtered (spaces, "objfile ");
+ gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout);
+ }
+ else
+ {
+ printfi_filtered (spaces, "gdbarch ");
+ gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout);
+ }
printf_filtered ("\n");
printfi_filtered (spaces, "target_type ");
gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout);
recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4);
}
}
+ if (TYPE_CODE (type) == TYPE_CODE_RANGE)
+ {
+ printfi_filtered (spaces, "low %s%s high %s%s\n",
+ plongest (TYPE_LOW_BOUND (type)),
+ TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "",
+ plongest (TYPE_HIGH_BOUND (type)),
+ TYPE_HIGH_BOUND_UNDEFINED (type) ? " (undefined)" : "");
+ }
printfi_filtered (spaces, "vptr_basetype ");
gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout);
puts_filtered ("\n");
void **slot;
struct type *new_type;
- if (TYPE_OBJFILE (type) == NULL)
+ if (! TYPE_OBJFILE_OWNED (type))
return type;
/* This type shouldn't be pointing to any types in other objfiles;
if (*slot != NULL)
return ((struct type_pair *) *slot)->new;
- new_type = alloc_type (NULL);
+ new_type = alloc_type_arch (get_type_arch (type));
/* We must add the new type to the hash table immediately, in case
we encounter this type again during a recursive call below. */
/* Copy the common fields of types. For the main type, we simply
copy the entire thing and then update specific fields as needed. */
*TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type);
- TYPE_OBJFILE (new_type) = NULL;
+ TYPE_OBJFILE_OWNED (new_type) = 0;
+ TYPE_OWNER (new_type).gdbarch = get_type_arch (type);
if (TYPE_NAME (type))
TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type));
}
}
+ /* For range types, copy the bounds information. */
+ if (TYPE_CODE (type) == TYPE_CODE_RANGE)
+ {
+ TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds));
+ *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type);
+ }
+
/* Copy pointers to other types. */
if (TYPE_TARGET_TYPE (type))
TYPE_TARGET_TYPE (new_type) =
{
struct type *new_type;
- gdb_assert (TYPE_OBJFILE (type) != NULL);
+ gdb_assert (TYPE_OBJFILE_OWNED (type));
- new_type = alloc_type (TYPE_OBJFILE (type));
+ new_type = alloc_type_copy (type);
TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type);
TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type),
return new_type;
}
-static struct type *
-build_flt (int bit, char *name, const struct floatformat **floatformats)
+
+/* Helper functions to initialize architecture-specific types. */
+
+/* Allocate a type structure associated with GDBARCH and set its
+ CODE, LENGTH, and NAME fields. */
+struct type *
+arch_type (struct gdbarch *gdbarch,
+ enum type_code code, int length, char *name)
+{
+ struct type *type;
+
+ type = alloc_type_arch (gdbarch);
+ TYPE_CODE (type) = code;
+ TYPE_LENGTH (type) = length;
+
+ if (name)
+ TYPE_NAME (type) = xstrdup (name);
+
+ return type;
+}
+
+/* Allocate a TYPE_CODE_INT type structure associated with GDBARCH.
+ BIT is the type size in bits. If UNSIGNED_P is non-zero, set
+ the type's TYPE_UNSIGNED flag. NAME is the type name. */
+struct type *
+arch_integer_type (struct gdbarch *gdbarch,
+ int bit, int unsigned_p, char *name)
+{
+ struct type *t;
+
+ t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+ if (name && strcmp (name, "char") == 0)
+ TYPE_NOSIGN (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH.
+ BIT is the type size in bits. If UNSIGNED_P is non-zero, set
+ the type's TYPE_UNSIGNED flag. NAME is the type name. */
+struct type *
+arch_character_type (struct gdbarch *gdbarch,
+ int bit, int unsigned_p, char *name)
+{
+ struct type *t;
+
+ t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH.
+ BIT is the type size in bits. If UNSIGNED_P is non-zero, set
+ the type's TYPE_UNSIGNED flag. NAME is the type name. */
+struct type *
+arch_boolean_type (struct gdbarch *gdbarch,
+ int bit, int unsigned_p, char *name)
+{
+ struct type *t;
+
+ t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH.
+ BIT is the type size in bits; if BIT equals -1, the size is
+ determined by the floatformat. NAME is the type name. Set the
+ TYPE_FLOATFORMAT from FLOATFORMATS. */
+struct type *
+arch_float_type (struct gdbarch *gdbarch,
+ int bit, char *name, const struct floatformat **floatformats)
{
struct type *t;
}
gdb_assert (bit >= 0);
- t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, 0, name, NULL);
+ t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name);
TYPE_FLOATFORMAT (t) = floatformats;
return t;
}
-static struct gdbarch_data *gdbtypes_data;
+/* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH.
+ NAME is the type name. TARGET_TYPE is the component float type. */
+struct type *
+arch_complex_type (struct gdbarch *gdbarch,
+ char *name, struct type *target_type)
+{
+ struct type *t;
+ t = arch_type (gdbarch, TYPE_CODE_COMPLEX,
+ 2 * TYPE_LENGTH (target_type), name);
+ TYPE_TARGET_TYPE (t) = target_type;
+ return t;
+}
-const struct builtin_type *
-builtin_type (struct gdbarch *gdbarch)
+/* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH.
+ NAME is the type name. LENGTH is the number of flag bits. */
+struct type *
+arch_flags_type (struct gdbarch *gdbarch, char *name, int length)
{
- return gdbarch_data (gdbarch, gdbtypes_data);
+ int nfields = length * TARGET_CHAR_BIT;
+ struct type *type;
+
+ type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name);
+ TYPE_UNSIGNED (type) = 1;
+ TYPE_NFIELDS (type) = nfields;
+ TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field));
+
+ return type;
}
+/* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at
+ position BITPOS is called NAME. */
+void
+append_flags_type_flag (struct type *type, int bitpos, char *name)
+{
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS);
+ gdb_assert (bitpos < TYPE_NFIELDS (type));
+ gdb_assert (bitpos >= 0);
-static struct type *
-build_complex (int bit, char *name, struct type *target_type)
+ if (name)
+ {
+ TYPE_FIELD_NAME (type, bitpos) = xstrdup (name);
+ TYPE_FIELD_BITPOS (type, bitpos) = bitpos;
+ }
+ else
+ {
+ /* Don't show this field to the user. */
+ TYPE_FIELD_BITPOS (type, bitpos) = -1;
+ }
+}
+
+/* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as
+ specified by CODE) associated with GDBARCH. NAME is the type name. */
+struct type *
+arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code)
{
struct type *t;
- t = init_type (TYPE_CODE_COMPLEX, 2 * bit / TARGET_CHAR_BIT,
- 0, name, (struct objfile *) NULL);
- TYPE_TARGET_TYPE (t) = target_type;
+ gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION);
+ t = arch_type (gdbarch, code, 0, NULL);
+ TYPE_TAG_NAME (t) = name;
+ INIT_CPLUS_SPECIFIC (t);
return t;
}
+/* Add new field with name NAME and type FIELD to composite type T.
+ ALIGNMENT (if non-zero) specifies the minimum field alignment. */
+void
+append_composite_type_field_aligned (struct type *t, char *name,
+ struct type *field, int alignment)
+{
+ struct field *f;
+ TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1;
+ TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t),
+ sizeof (struct field) * TYPE_NFIELDS (t));
+ f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]);
+ memset (f, 0, sizeof f[0]);
+ FIELD_TYPE (f[0]) = field;
+ FIELD_NAME (f[0]) = name;
+ if (TYPE_CODE (t) == TYPE_CODE_UNION)
+ {
+ if (TYPE_LENGTH (t) < TYPE_LENGTH (field))
+ TYPE_LENGTH (t) = TYPE_LENGTH (field);
+ }
+ else if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
+ {
+ TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field);
+ if (TYPE_NFIELDS (t) > 1)
+ {
+ FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1])
+ + (TYPE_LENGTH (FIELD_TYPE (f[-1]))
+ * TARGET_CHAR_BIT));
+
+ if (alignment)
+ {
+ int left = FIELD_BITPOS (f[0]) % (alignment * TARGET_CHAR_BIT);
+ if (left)
+ {
+ FIELD_BITPOS (f[0]) += left;
+ TYPE_LENGTH (t) += left / TARGET_CHAR_BIT;
+ }
+ }
+ }
+ }
+}
+
+/* Add new field with name NAME and type FIELD to composite type T. */
+void
+append_composite_type_field (struct type *t, char *name,
+ struct type *field)
+{
+ append_composite_type_field_aligned (t, name, field, 0);
+}
+
+
+static struct gdbarch_data *gdbtypes_data;
+
+const struct builtin_type *
+builtin_type (struct gdbarch *gdbarch)
+{
+ return gdbarch_data (gdbarch, gdbtypes_data);
+}
+
static void *
gdbtypes_post_init (struct gdbarch *gdbarch)
{
= GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type);
/* Basic types. */
- builtin_type->builtin_void =
- init_type (TYPE_CODE_VOID, 1,
- 0,
- "void", (struct objfile *) NULL);
- builtin_type->builtin_char =
- init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- (TYPE_FLAG_NOSIGN
- | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)),
- "char", (struct objfile *) NULL);
- builtin_type->builtin_signed_char =
- init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- 0,
- "signed char", (struct objfile *) NULL);
- builtin_type->builtin_unsigned_char =
- init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED,
- "unsigned char", (struct objfile *) NULL);
- builtin_type->builtin_short =
- init_type (TYPE_CODE_INT,
- gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "short", (struct objfile *) NULL);
- builtin_type->builtin_unsigned_short =
- init_type (TYPE_CODE_INT,
- gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned short",
- (struct objfile *) NULL);
- builtin_type->builtin_int =
- init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "int", (struct objfile *) NULL);
- builtin_type->builtin_unsigned_int =
- init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned int",
- (struct objfile *) NULL);
- builtin_type->builtin_long =
- init_type (TYPE_CODE_INT,
- gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "long", (struct objfile *) NULL);
- builtin_type->builtin_unsigned_long =
- init_type (TYPE_CODE_INT,
- gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned long",
- (struct objfile *) NULL);
- builtin_type->builtin_long_long =
- init_type (TYPE_CODE_INT,
- gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "long long", (struct objfile *) NULL);
- builtin_type->builtin_unsigned_long_long =
- init_type (TYPE_CODE_INT,
- gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned long long",
- (struct objfile *) NULL);
+ builtin_type->builtin_void
+ = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void");
+ builtin_type->builtin_char
+ = arch_integer_type (gdbarch, TARGET_CHAR_BIT,
+ !gdbarch_char_signed (gdbarch), "char");
+ builtin_type->builtin_signed_char
+ = arch_integer_type (gdbarch, TARGET_CHAR_BIT,
+ 0, "signed char");
+ builtin_type->builtin_unsigned_char
+ = arch_integer_type (gdbarch, TARGET_CHAR_BIT,
+ 1, "unsigned char");
+ builtin_type->builtin_short
+ = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch),
+ 0, "short");
+ builtin_type->builtin_unsigned_short
+ = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch),
+ 1, "unsigned short");
+ builtin_type->builtin_int
+ = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
+ 0, "int");
+ builtin_type->builtin_unsigned_int
+ = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
+ 1, "unsigned int");
+ builtin_type->builtin_long
+ = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
+ 0, "long");
+ builtin_type->builtin_unsigned_long
+ = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
+ 1, "unsigned long");
+ builtin_type->builtin_long_long
+ = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch),
+ 0, "long long");
+ builtin_type->builtin_unsigned_long_long
+ = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch),
+ 1, "unsigned long long");
builtin_type->builtin_float
- = build_flt (gdbarch_float_bit (gdbarch), "float",
- gdbarch_float_format (gdbarch));
+ = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch),
+ "float", gdbarch_float_format (gdbarch));
builtin_type->builtin_double
- = build_flt (gdbarch_double_bit (gdbarch), "double",
- gdbarch_double_format (gdbarch));
+ = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
+ "double", gdbarch_double_format (gdbarch));
builtin_type->builtin_long_double
- = build_flt (gdbarch_long_double_bit (gdbarch), "long double",
- gdbarch_long_double_format (gdbarch));
+ = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
+ "long double", gdbarch_long_double_format (gdbarch));
builtin_type->builtin_complex
- = build_complex (gdbarch_float_bit (gdbarch), "complex",
- builtin_type->builtin_float);
+ = arch_complex_type (gdbarch, "complex",
+ builtin_type->builtin_float);
builtin_type->builtin_double_complex
- = build_complex (gdbarch_double_bit (gdbarch), "double complex",
- builtin_type->builtin_double);
- builtin_type->builtin_string =
- init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- 0,
- "string", (struct objfile *) NULL);
- builtin_type->builtin_bool =
- init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- 0,
- "bool", (struct objfile *) NULL);
+ = arch_complex_type (gdbarch, "double complex",
+ builtin_type->builtin_double);
+ builtin_type->builtin_string
+ = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string");
+ builtin_type->builtin_bool
+ = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool");
/* The following three are about decimal floating point types, which
are 32-bits, 64-bits and 128-bits respectively. */
builtin_type->builtin_decfloat
- = init_type (TYPE_CODE_DECFLOAT, 32 / 8,
- 0,
- "_Decimal32", (struct objfile *) NULL);
+ = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32");
builtin_type->builtin_decdouble
- = init_type (TYPE_CODE_DECFLOAT, 64 / 8,
- 0,
- "_Decimal64", (struct objfile *) NULL);
+ = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64");
builtin_type->builtin_declong
- = init_type (TYPE_CODE_DECFLOAT, 128 / 8,
- 0,
- "_Decimal128", (struct objfile *) NULL);
+ = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128");
/* "True" character types. */
- builtin_type->builtin_true_char =
- init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- 0,
- "true character", (struct objfile *) NULL);
- builtin_type->builtin_true_unsigned_char =
- init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED,
- "true character", (struct objfile *) NULL);
+ builtin_type->builtin_true_char
+ = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character");
+ builtin_type->builtin_true_unsigned_char
+ = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character");
/* Fixed-size integer types. */
- builtin_type->builtin_int0 =
- init_type (TYPE_CODE_INT, 0 / 8,
- 0,
- "int0_t", (struct objfile *) NULL);
- builtin_type->builtin_int8 =
- init_type (TYPE_CODE_INT, 8 / 8,
- TYPE_FLAG_NOTTEXT,
- "int8_t", (struct objfile *) NULL);
- builtin_type->builtin_uint8 =
- init_type (TYPE_CODE_INT, 8 / 8,
- TYPE_FLAG_UNSIGNED | TYPE_FLAG_NOTTEXT,
- "uint8_t", (struct objfile *) NULL);
- builtin_type->builtin_int16 =
- init_type (TYPE_CODE_INT, 16 / 8,
- 0,
- "int16_t", (struct objfile *) NULL);
- builtin_type->builtin_uint16 =
- init_type (TYPE_CODE_INT, 16 / 8,
- TYPE_FLAG_UNSIGNED,
- "uint16_t", (struct objfile *) NULL);
- builtin_type->builtin_int32 =
- init_type (TYPE_CODE_INT, 32 / 8,
- 0,
- "int32_t", (struct objfile *) NULL);
- builtin_type->builtin_uint32 =
- init_type (TYPE_CODE_INT, 32 / 8,
- TYPE_FLAG_UNSIGNED,
- "uint32_t", (struct objfile *) NULL);
- builtin_type->builtin_int64 =
- init_type (TYPE_CODE_INT, 64 / 8,
- 0,
- "int64_t", (struct objfile *) NULL);
- builtin_type->builtin_uint64 =
- init_type (TYPE_CODE_INT, 64 / 8,
- TYPE_FLAG_UNSIGNED,
- "uint64_t", (struct objfile *) NULL);
- builtin_type->builtin_int128 =
- init_type (TYPE_CODE_INT, 128 / 8,
- 0,
- "int128_t", (struct objfile *) NULL);
- builtin_type->builtin_uint128 =
- init_type (TYPE_CODE_INT, 128 / 8,
- TYPE_FLAG_UNSIGNED,
- "uint128_t", (struct objfile *) NULL);
+ builtin_type->builtin_int0
+ = arch_integer_type (gdbarch, 0, 0, "int0_t");
+ builtin_type->builtin_int8
+ = arch_integer_type (gdbarch, 8, 0, "int8_t");
+ builtin_type->builtin_uint8
+ = arch_integer_type (gdbarch, 8, 1, "uint8_t");
+ builtin_type->builtin_int16
+ = arch_integer_type (gdbarch, 16, 0, "int16_t");
+ builtin_type->builtin_uint16
+ = arch_integer_type (gdbarch, 16, 1, "uint16_t");
+ builtin_type->builtin_int32
+ = arch_integer_type (gdbarch, 32, 0, "int32_t");
+ builtin_type->builtin_uint32
+ = arch_integer_type (gdbarch, 32, 1, "uint32_t");
+ builtin_type->builtin_int64
+ = arch_integer_type (gdbarch, 64, 0, "int64_t");
+ builtin_type->builtin_uint64
+ = arch_integer_type (gdbarch, 64, 1, "uint64_t");
+ builtin_type->builtin_int128
+ = arch_integer_type (gdbarch, 128, 0, "int128_t");
+ builtin_type->builtin_uint128
+ = arch_integer_type (gdbarch, 128, 1, "uint128_t");
+ TYPE_NOTTEXT (builtin_type->builtin_int8) = 1;
+ TYPE_NOTTEXT (builtin_type->builtin_uint8) = 1;
/* Default data/code pointer types. */
- builtin_type->builtin_data_ptr =
- make_pointer_type (builtin_type->builtin_void, NULL);
- builtin_type->builtin_func_ptr =
- lookup_pointer_type (lookup_function_type (builtin_type->builtin_void));
+ builtin_type->builtin_data_ptr
+ = lookup_pointer_type (builtin_type->builtin_void);
+ builtin_type->builtin_func_ptr
+ = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void));
/* This type represents a GDB internal function. */
- builtin_type->internal_fn =
- init_type (TYPE_CODE_INTERNAL_FUNCTION, 0, 0,
- "<internal function>", NULL);
+ builtin_type->internal_fn
+ = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0,
+ "<internal function>");
return builtin_type;
}
gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init);
objfile_type_data = register_objfile_data ();
- /* FIXME: The following types are architecture-neutral. However,
- they contain pointer_type and reference_type fields potentially
- caching pointer or reference types that *are* architecture
- dependent. */
-
- builtin_type_ieee_single =
- build_flt (-1, "builtin_type_ieee_single", floatformats_ieee_single);
- builtin_type_ieee_double =
- build_flt (-1, "builtin_type_ieee_double", floatformats_ieee_double);
- builtin_type_i387_ext =
- build_flt (-1, "builtin_type_i387_ext", floatformats_i387_ext);
- builtin_type_m68881_ext =
- build_flt (-1, "builtin_type_m68881_ext", floatformats_m68881_ext);
- builtin_type_arm_ext =
- build_flt (-1, "builtin_type_arm_ext", floatformats_arm_ext);
- builtin_type_ia64_spill =
- build_flt (-1, "builtin_type_ia64_spill", floatformats_ia64_spill);
- builtin_type_ia64_quad =
- build_flt (-1, "builtin_type_ia64_quad", floatformats_ia64_quad);
-
add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\
Set debugging of C++ overloading."), _("\
Show debugging of C++ overloading."), _("\
projects / deliverable / binutils-gdb.git / blobdiff