/* Support routines for manipulating internal types for GDB.
- Copyright (C) 1992-2014 Free Software Foundation, Inc.
+ Copyright (C) 1992-2018 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include <string.h>
#include "bfd.h"
#include "symtab.h"
#include "symfile.h"
#include "complaints.h"
#include "gdbcmd.h"
#include "cp-abi.h"
-#include "gdb_assert.h"
#include "hashtab.h"
-#include "exceptions.h"
#include "cp-support.h"
#include "bcache.h"
#include "dwarf2loc.h"
#include "gdbcore.h"
+#include "floatformat.h"
/* Initialize BADNESS constants. */
const struct rank INTEGER_PROMOTION_BADNESS = {1,0};
const struct rank FLOAT_PROMOTION_BADNESS = {1,0};
const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0};
+const struct rank CV_CONVERSION_BADNESS = {1, 0};
const struct rank INTEGER_CONVERSION_BADNESS = {2,0};
const struct rank FLOAT_CONVERSION_BADNESS = {2,0};
const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0};
/* 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;
/* Allocate a new GDBARCH-associated type structure and fill it
with some defaults. Space for the type structure is allocated
- on the heap. */
+ on the obstack associated with GDBARCH. */
struct type *
alloc_type_arch (struct gdbarch *gdbarch)
/* Alloc the structure and start off with all fields zeroed. */
- type = XCNEW (struct type);
- TYPE_MAIN_TYPE (type) = XCNEW (struct main_type);
+ type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type);
+ TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, 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;
return type;
}
+/* See gdbtypes.h. */
+
+unsigned int
+type_length_units (struct type *type)
+{
+ struct gdbarch *arch = get_type_arch (type);
+ int unit_size = gdbarch_addressable_memory_unit_size (arch);
+
+ return TYPE_LENGTH (type) / unit_size;
+}
+
/* 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. */
/* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero,
points to a pointer to memory where the reference type should be
stored. If *TYPEPTR is zero, update it to point to the reference
- type we return. We allocate new memory if needed. */
+ type we return. We allocate new memory if needed. REFCODE denotes
+ the kind of reference type to lookup (lvalue or rvalue reference). */
struct type *
-make_reference_type (struct type *type, struct type **typeptr)
+make_reference_type (struct type *type, struct type **typeptr,
+ enum type_code refcode)
{
struct type *ntype; /* New type */
+ struct type **reftype;
struct type *chain;
- ntype = TYPE_REFERENCE_TYPE (type);
+ gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF);
+
+ ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type)
+ : TYPE_RVALUE_REFERENCE_TYPE (type));
if (ntype)
{
}
TYPE_TARGET_TYPE (ntype) = type;
- TYPE_REFERENCE_TYPE (type) = ntype;
+ reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type)
+ : &TYPE_RVALUE_REFERENCE_TYPE (type));
+
+ *reftype = ntype;
/* FIXME! Assume the machine has only one representation for
references, and that it matches the (only) representation for
TYPE_LENGTH (ntype) =
gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT;
- TYPE_CODE (ntype) = TYPE_CODE_REF;
+ TYPE_CODE (ntype) = refcode;
- if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */
- TYPE_REFERENCE_TYPE (type) = ntype;
+ *reftype = ntype;
/* Update the length of all the other variants of this type. */
chain = TYPE_CHAIN (ntype);
details. */
struct type *
-lookup_reference_type (struct type *type)
+lookup_reference_type (struct type *type, enum type_code refcode)
+{
+ return make_reference_type (type, (struct type **) 0, refcode);
+}
+
+/* Lookup the lvalue reference type for the type TYPE. */
+
+struct type *
+lookup_lvalue_reference_type (struct type *type)
+{
+ return lookup_reference_type (type, TYPE_CODE_REF);
+}
+
+/* Lookup the rvalue reference type for the type TYPE. */
+
+struct type *
+lookup_rvalue_reference_type (struct type *type)
{
- return make_reference_type (type, (struct type **) 0);
+ return lookup_reference_type (type, TYPE_CODE_RVALUE_REF);
}
/* Lookup a function type that returns type TYPE. TYPEPTR, if
gdb_assert (nparams == 0);
TYPE_PROTOTYPED (fn) = 1;
}
+ else
+ TYPE_PROTOTYPED (fn) = 1;
}
TYPE_NFIELDS (fn) = nparams;
- TYPE_FIELDS (fn) = TYPE_ZALLOC (fn, nparams * sizeof (struct field));
+ TYPE_FIELDS (fn)
+ = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field));
for (i = 0; i < nparams; ++i)
TYPE_FIELD_TYPE (fn, i) = param_types[i];
NULL);
}
+/* Make a type without const, volatile, or restrict. */
+
+struct type *
+make_unqualified_type (struct type *type)
+{
+ return make_qualified_type (type,
+ (TYPE_INSTANCE_FLAGS (type)
+ & ~(TYPE_INSTANCE_FLAG_CONST
+ | TYPE_INSTANCE_FLAG_VOLATILE
+ | TYPE_INSTANCE_FLAG_RESTRICT)),
+ NULL);
+}
+
+/* Make a '_Atomic'-qualified version of TYPE. */
+
+struct type *
+make_atomic_type (struct type *type)
+{
+ return make_qualified_type (type,
+ (TYPE_INSTANCE_FLAGS (type)
+ | TYPE_INSTANCE_FLAG_ATOMIC),
+ NULL);
+}
+
/* Replace the contents of ntype with the type *type. This changes the
contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus
the changes are propogated to all types in the TYPE_CHAIN.
the assignment of one type's main type structure to the other
will produce a type with references to objects (names; field
lists; etc.) allocated on an objfile other than its own. */
- gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype));
+ gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type));
*TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type);
TYPE_LENGTH (mtype) = 1;
TYPE_STUB (mtype) = 1;
TYPE_TARGET_TYPE (mtype) = type;
- /* _DOMAIN_TYPE (mtype) = unknown yet */
+ /* TYPE_SELF_TYPE (mtype) = unknown yet */
return mtype;
}
+/* See gdbtypes.h. */
+
+bool
+operator== (const dynamic_prop &l, const dynamic_prop &r)
+{
+ if (l.kind != r.kind)
+ return false;
+
+ switch (l.kind)
+ {
+ case PROP_UNDEFINED:
+ return true;
+ case PROP_CONST:
+ return l.data.const_val == r.data.const_val;
+ case PROP_ADDR_OFFSET:
+ case PROP_LOCEXPR:
+ case PROP_LOCLIST:
+ return l.data.baton == r.data.baton;
+ }
+
+ gdb_assert_not_reached ("unhandled dynamic_prop kind");
+}
+
+/* See gdbtypes.h. */
+
+bool
+operator== (const range_bounds &l, const range_bounds &r)
+{
+#define FIELD_EQ(FIELD) (l.FIELD == r.FIELD)
+
+ return (FIELD_EQ (low)
+ && FIELD_EQ (high)
+ && FIELD_EQ (flag_upper_bound_is_count)
+ && FIELD_EQ (flag_bound_evaluated));
+
+#undef FIELD_EQ
+}
+
/* Create a range type with a dynamic range from LOW_BOUND to
HIGH_BOUND, inclusive. See create_range_type for further details. */
if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0)
TYPE_UNSIGNED (result_type) = 1;
+ /* Ada allows the declaration of range types whose upper bound is
+ less than the lower bound, so checking the lower bound is not
+ enough. Make sure we do not mark a range type whose upper bound
+ is negative as unsigned. */
+ if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0)
+ TYPE_UNSIGNED (result_type) = 0;
+
return result_type;
}
int
get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp)
{
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_RANGE:
*highp = -*lowp - 1;
return 0;
}
- /* ... fall through for unsigned ints ... */
+ /* fall through */
case TYPE_CODE_CHAR:
*lowp = 0;
/* This round-about calculation is to avoid shifting by
return 1;
}
+/* Assuming that TYPE is a discrete type and VAL is a valid integer
+ representation of a value of this type, save the corresponding
+ position number in POS.
+
+ Its differs from VAL only in the case of enumeration types. In
+ this case, the position number of the value of the first listed
+ enumeration literal is zero; the position number of the value of
+ each subsequent enumeration literal is one more than that of its
+ predecessor in the list.
+
+ Return 1 if the operation was successful. Return zero otherwise,
+ in which case the value of POS is unmodified.
+*/
+
+int
+discrete_position (struct type *type, LONGEST val, LONGEST *pos)
+{
+ if (TYPE_CODE (type) == TYPE_CODE_ENUM)
+ {
+ int i;
+
+ for (i = 0; i < TYPE_NFIELDS (type); i += 1)
+ {
+ if (val == TYPE_FIELD_ENUMVAL (type, i))
+ {
+ *pos = i;
+ return 1;
+ }
+ }
+ /* Invalid enumeration value. */
+ return 0;
+ }
+ else
+ {
+ *pos = val;
+ return 1;
+ }
+}
+
/* Create an array type using either a blank type supplied in
RESULT_TYPE, or creating a new type, inheriting the objfile from
RANGE_TYPE.
Elements will be of type ELEMENT_TYPE, the indices will be of type
RANGE_TYPE.
+ BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride.
+ This byte stride property is added to the resulting array type
+ as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP
+ argument can only be used to create types that are objfile-owned
+ (see add_dyn_prop), meaning that either this function must be called
+ with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE.
+
+ BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL.
If BIT_STRIDE is not zero, build a packed array type whose element
size is BIT_STRIDE. Otherwise, ignore this parameter.
create_array_type_with_stride (struct type *result_type,
struct type *element_type,
struct type *range_type,
+ struct dynamic_prop *byte_stride_prop,
unsigned int bit_stride)
{
+ if (byte_stride_prop != NULL
+ && byte_stride_prop->kind == PROP_CONST)
+ {
+ /* The byte stride is actually not dynamic. Pretend we were
+ called with bit_stride set instead of byte_stride_prop.
+ This will give us the same result type, while avoiding
+ the need to handle this as a special case. */
+ bit_stride = byte_stride_prop->data.const_val * 8;
+ byte_stride_prop = NULL;
+ }
+
if (result_type == NULL)
result_type = alloc_type_copy (range_type);
TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
TYPE_TARGET_TYPE (result_type) = element_type;
- if (has_static_range (TYPE_RANGE_DATA (range_type)))
+ if (byte_stride_prop == NULL
+ && has_static_range (TYPE_RANGE_DATA (range_type))
+ && (!type_not_associated (result_type)
+ && !type_not_allocated (result_type)))
{
LONGEST low_bound, high_bound;
if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
low_bound = high_bound = 0;
- CHECK_TYPEDEF (element_type);
+ element_type = check_typedef (element_type);
/* Be careful when setting the array length. Ada arrays can be
empty arrays with the high_bound being smaller than the low_bound.
In such cases, the array length should be zero. */
TYPE_FIELDS (result_type) =
(struct field *) TYPE_ZALLOC (result_type, sizeof (struct field));
TYPE_INDEX_TYPE (result_type) = range_type;
- TYPE_VPTR_FIELDNO (result_type) = -1;
- if (bit_stride > 0)
+ if (byte_stride_prop != NULL)
+ add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop, result_type);
+ else if (bit_stride > 0)
TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride;
- /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */
+ /* TYPE_TARGET_STUB will take care of zero length arrays. */
if (TYPE_LENGTH (result_type) == 0)
TYPE_TARGET_STUB (result_type) = 1;
struct type *range_type)
{
return create_array_type_with_stride (result_type, element_type,
- range_type, 0);
+ range_type, NULL, 0);
}
struct type *
lookup_array_range_type (struct type *element_type,
LONGEST low_bound, LONGEST high_bound)
{
- struct gdbarch *gdbarch = get_type_arch (element_type);
- struct type *index_type = builtin_type (gdbarch)->builtin_int;
- struct type *range_type
- = create_static_range_type (NULL, index_type, low_bound, high_bound);
+ struct type *index_type;
+ struct type *range_type;
+
+ if (TYPE_OBJFILE_OWNED (element_type))
+ index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int;
+ else
+ index_type = builtin_type (get_type_arch (element_type))->builtin_int;
+ range_type = create_static_range_type (NULL, index_type,
+ low_bound, high_bound);
return create_array_type (NULL, element_type, range_type);
}
TYPE_CODE (result_type) = TYPE_CODE_SET;
TYPE_NFIELDS (result_type) = 1;
- TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field));
+ TYPE_FIELDS (result_type)
+ = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field));
if (!TYPE_STUB (domain_type))
{
return array_type;
}
-/* Smash TYPE to be a type of pointers to members of DOMAIN with type
+/* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE
+ belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too
+ confusing. "self" is a common enough replacement for "this".
+ TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or
+ TYPE_CODE_METHOD. */
+
+struct type *
+internal_type_self_type (struct type *type)
+{
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_METHODPTR:
+ case TYPE_CODE_MEMBERPTR:
+ if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE)
+ return NULL;
+ gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE);
+ return TYPE_MAIN_TYPE (type)->type_specific.self_type;
+ case TYPE_CODE_METHOD:
+ if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE)
+ return NULL;
+ gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC);
+ return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type;
+ default:
+ gdb_assert_not_reached ("bad type");
+ }
+}
+
+/* Set the type of the class that TYPE belongs to.
+ In c++ this is the class of "this".
+ TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or
+ TYPE_CODE_METHOD. */
+
+void
+set_type_self_type (struct type *type, struct type *self_type)
+{
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_METHODPTR:
+ case TYPE_CODE_MEMBERPTR:
+ if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE)
+ TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE;
+ gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE);
+ TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type;
+ break;
+ case TYPE_CODE_METHOD:
+ if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE)
+ INIT_FUNC_SPECIFIC (type);
+ gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC);
+ TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type;
+ break;
+ default:
+ gdb_assert_not_reached ("bad type");
+ }
+}
+
+/* Smash TYPE to be a type of pointers to members of SELF_TYPE with type
TO_TYPE. A member pointer is a wierd thing -- it amounts to a
typed offset into a struct, e.g. "an int at offset 8". A MEMBER
TYPE doesn't include the offset (that's the value of the MEMBER
allocated. */
void
-smash_to_memberptr_type (struct type *type, struct type *domain,
+smash_to_memberptr_type (struct type *type, struct type *self_type,
struct type *to_type)
{
smash_type (type);
+ TYPE_CODE (type) = TYPE_CODE_MEMBERPTR;
TYPE_TARGET_TYPE (type) = to_type;
- TYPE_DOMAIN_TYPE (type) = domain;
+ set_type_self_type (type, self_type);
/* Assume that a data member pointer is the same size as a normal
pointer. */
TYPE_LENGTH (type)
= gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT;
- TYPE_CODE (type) = TYPE_CODE_MEMBERPTR;
}
/* Smash TYPE to be a type of pointer to methods type TO_TYPE.
smash_to_methodptr_type (struct type *type, struct type *to_type)
{
smash_type (type);
+ TYPE_CODE (type) = TYPE_CODE_METHODPTR;
TYPE_TARGET_TYPE (type) = to_type;
- TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type);
+ set_type_self_type (type, TYPE_SELF_TYPE (to_type));
TYPE_LENGTH (type) = cplus_method_ptr_size (to_type);
- TYPE_CODE (type) = TYPE_CODE_METHODPTR;
}
-/* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
+/* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE.
METHOD just means `function that gets an extra "this" argument'.
When "smashing" the type, we preserve the objfile that the old type
allocated. */
void
-smash_to_method_type (struct type *type, struct type *domain,
+smash_to_method_type (struct type *type, struct type *self_type,
struct type *to_type, struct field *args,
int nargs, int varargs)
{
smash_type (type);
+ TYPE_CODE (type) = TYPE_CODE_METHOD;
TYPE_TARGET_TYPE (type) = to_type;
- TYPE_DOMAIN_TYPE (type) = domain;
+ set_type_self_type (type, self_type);
TYPE_FIELDS (type) = args;
TYPE_NFIELDS (type) = nargs;
if (varargs)
TYPE_VARARGS (type) = 1;
TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
- TYPE_CODE (type) = TYPE_CODE_METHOD;
}
/* Return a typename for a struct/union/enum type without "struct ",
const char *name;
struct objfile *objfile;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
name = type_name_no_tag (type);
if (name != NULL)
const struct block *block, int noerr)
{
struct symbol *sym;
- struct type *type;
- sym = lookup_symbol (name, block, VAR_DOMAIN, 0);
+ sym = lookup_symbol_in_language (name, block, VAR_DOMAIN,
+ language->la_language, NULL).symbol;
if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
return SYMBOL_TYPE (sym);
- type = language_lookup_primitive_type_by_name (language, gdbarch, name);
- if (type)
- return type;
-
if (noerr)
return NULL;
error (_("No type named %s."), name);
lookup_unsigned_typename (const struct language_defn *language,
struct gdbarch *gdbarch, const char *name)
{
- char *uns = alloca (strlen (name) + 10);
+ char *uns = (char *) alloca (strlen (name) + 10);
strcpy (uns, "unsigned ");
strcpy (uns + 9, name);
struct gdbarch *gdbarch, const char *name)
{
struct type *t;
- char *uns = alloca (strlen (name) + 8);
+ char *uns = (char *) alloca (strlen (name) + 8);
strcpy (uns, "signed ");
strcpy (uns + 7, name);
{
struct symbol *sym;
- sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
+ sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol;
if (sym == NULL)
{
struct symbol *sym;
struct type *t;
- sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
+ sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol;
if (sym == NULL)
error (_("No union type named %s."), name);
{
struct symbol *sym;
- sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0);
+ sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol;
if (sym == NULL)
{
error (_("No enum type named %s."), name);
strcat (nam, TYPE_NAME (type));
strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */
- sym = lookup_symbol (nam, block, VAR_DOMAIN, 0);
+ sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol;
if (sym == NULL)
{
lookup_struct_elt_type (struct type *type, const char *name, int noerr)
{
int i;
- char *typename;
for (;;)
{
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
if (TYPE_CODE (type) != TYPE_CODE_PTR
&& TYPE_CODE (type) != TYPE_CODE_REF)
break;
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
{
- typename = type_to_string (type);
- make_cleanup (xfree, typename);
- error (_("Type %s is not a structure or union type."), typename);
+ std::string type_name = type_to_string (type);
+ error (_("Type %s is not a structure or union type."),
+ type_name.c_str ());
}
#if 0
I.e. when doing "ptype bell->bar" for "struct foo { int bar; int
foo; } bell;" Disabled by fnf. */
{
- char *typename;
+ char *type_name;
- typename = type_name_no_tag (type);
- if (typename != NULL && strcmp (typename, name) == 0)
+ type_name = type_name_no_tag (type);
+ if (type_name != NULL && strcmp (type_name, name) == 0)
return type;
}
#endif
return NULL;
}
- typename = type_to_string (type);
- make_cleanup (xfree, typename);
- error (_("Type %s has no component named %s."), typename, name);
+ std::string type_name = type_to_string (type);
+ error (_("Type %s has no component named %s."), type_name.c_str (), name);
}
/* Store in *MAX the largest number representable by unsigned integer type
{
unsigned int n;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type));
gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST));
{
unsigned int n;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type));
gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST));
*max = ((ULONGEST) 1 << (n - 1)) - 1;
}
+/* Internal routine called by TYPE_VPTR_FIELDNO to return the value of
+ cplus_stuff.vptr_fieldno.
+
+ cplus_stuff is initialized to cplus_struct_default which does not
+ set vptr_fieldno to -1 for portability reasons (IWBN to use C99
+ designated initializers). We cope with that here. */
+
+int
+internal_type_vptr_fieldno (struct type *type)
+{
+ type = check_typedef (type);
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION);
+ if (!HAVE_CPLUS_STRUCT (type))
+ return -1;
+ return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno;
+}
+
+/* Set the value of cplus_stuff.vptr_fieldno. */
+
+void
+set_type_vptr_fieldno (struct type *type, int fieldno)
+{
+ type = check_typedef (type);
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION);
+ if (!HAVE_CPLUS_STRUCT (type))
+ ALLOCATE_CPLUS_STRUCT_TYPE (type);
+ TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno;
+}
+
+/* Internal routine called by TYPE_VPTR_BASETYPE to return the value of
+ cplus_stuff.vptr_basetype. */
+
+struct type *
+internal_type_vptr_basetype (struct type *type)
+{
+ type = check_typedef (type);
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION);
+ gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF);
+ return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype;
+}
+
+/* Set the value of cplus_stuff.vptr_basetype. */
+
+void
+set_type_vptr_basetype (struct type *type, struct type *basetype)
+{
+ type = check_typedef (type);
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION);
+ if (!HAVE_CPLUS_STRUCT (type))
+ ALLOCATE_CPLUS_STRUCT_TYPE (type);
+ TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype;
+}
+
/* Lookup the vptr basetype/fieldno values for TYPE.
If found store vptr_basetype in *BASETYPEP if non-NULL, and return
vptr_fieldno. Also, if found and basetype is from the same objfile,
int
get_vptr_fieldno (struct type *type, struct type **basetypep)
{
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
if (TYPE_VPTR_FIELDNO (type) < 0)
{
it, it may have a different lifetime. PR 2384 */
if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype))
{
- TYPE_VPTR_FIELDNO (type) = fieldno;
- TYPE_VPTR_BASETYPE (type) = basetype;
+ set_type_vptr_fieldno (type, fieldno);
+ set_type_vptr_basetype (type, basetype);
}
if (basetypep)
*basetypep = basetype;
complaint (&symfile_complaints, _("stub type has NULL name"));
}
-/* See gdbtypes.h. */
+/* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property
+ attached to it, and that property has a non-constant value. */
-int
-is_dynamic_type (struct type *type)
+static int
+array_type_has_dynamic_stride (struct type *type)
+{
+ struct dynamic_prop *prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type);
+
+ return (prop != NULL && prop->kind != PROP_CONST);
+}
+
+/* Worker for is_dynamic_type. */
+
+static int
+is_dynamic_type_internal (struct type *type, int top_level)
{
type = check_typedef (type);
- if (TYPE_CODE (type) == TYPE_CODE_REF)
+ /* We only want to recognize references at the outermost level. */
+ if (top_level && TYPE_CODE (type) == TYPE_CODE_REF)
type = check_typedef (TYPE_TARGET_TYPE (type));
+ /* Types that have a dynamic TYPE_DATA_LOCATION are considered
+ dynamic, even if the type itself is statically defined.
+ From a user's point of view, this may appear counter-intuitive;
+ but it makes sense in this context, because the point is to determine
+ whether any part of the type needs to be resolved before it can
+ be exploited. */
+ if (TYPE_DATA_LOCATION (type) != NULL
+ && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR
+ || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST))
+ return 1;
+
+ if (TYPE_ASSOCIATED_PROP (type))
+ return 1;
+
+ if (TYPE_ALLOCATED_PROP (type))
+ return 1;
+
switch (TYPE_CODE (type))
{
case TYPE_CODE_RANGE:
- return !has_static_range (TYPE_RANGE_DATA (type));
+ {
+ /* A range type is obviously dynamic if it has at least one
+ dynamic bound. But also consider the range type to be
+ dynamic when its subtype is dynamic, even if the bounds
+ of the range type are static. It allows us to assume that
+ the subtype of a static range type is also static. */
+ return (!has_static_range (TYPE_RANGE_DATA (type))
+ || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0));
+ }
case TYPE_CODE_ARRAY:
{
gdb_assert (TYPE_NFIELDS (type) == 1);
- /* The array is dynamic if either the bounds are dynamic,
- or the elements it contains have a dynamic contents. */
- if (is_dynamic_type (TYPE_INDEX_TYPE (type)))
+ /* The array is dynamic if either the bounds are dynamic... */
+ if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0))
return 1;
- return is_dynamic_type (TYPE_TARGET_TYPE (type));
+ /* ... or the elements it contains have a dynamic contents... */
+ if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0))
+ return 1;
+ /* ... or if it has a dynamic stride... */
+ if (array_type_has_dynamic_stride (type))
+ return 1;
+ return 0;
}
case TYPE_CODE_STRUCT:
for (i = 0; i < TYPE_NFIELDS (type); ++i)
if (!field_is_static (&TYPE_FIELD (type, i))
- && is_dynamic_type (TYPE_FIELD_TYPE (type, i)))
+ && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0))
return 1;
}
break;
return 0;
}
+/* See gdbtypes.h. */
+
+int
+is_dynamic_type (struct type *type)
+{
+ return is_dynamic_type_internal (type, 1);
+}
+
+static struct type *resolve_dynamic_type_internal
+ (struct type *type, struct property_addr_info *addr_stack, int top_level);
+
+/* Given a dynamic range type (dyn_range_type) and a stack of
+ struct property_addr_info elements, return a static version
+ of that type. */
+
static struct type *
-resolve_dynamic_range (struct type *dyn_range_type)
+resolve_dynamic_range (struct type *dyn_range_type,
+ struct property_addr_info *addr_stack)
{
CORE_ADDR value;
- struct type *static_range_type;
+ struct type *static_range_type, *static_target_type;
const struct dynamic_prop *prop;
- const struct dwarf2_locexpr_baton *baton;
struct dynamic_prop low_bound, high_bound;
gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE);
prop = &TYPE_RANGE_DATA (dyn_range_type)->low;
- if (dwarf2_evaluate_property (prop, &value))
+ if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value))
{
low_bound.kind = PROP_CONST;
low_bound.data.const_val = value;
}
prop = &TYPE_RANGE_DATA (dyn_range_type)->high;
- if (dwarf2_evaluate_property (prop, &value))
+ if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value))
{
high_bound.kind = PROP_CONST;
high_bound.data.const_val = value;
high_bound.data.const_val = 0;
}
+ static_target_type
+ = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type),
+ addr_stack, 0);
static_range_type = create_range_type (copy_type (dyn_range_type),
- TYPE_TARGET_TYPE (dyn_range_type),
+ static_target_type,
&low_bound, &high_bound);
TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1;
return static_range_type;
}
/* Resolves dynamic bound values of an array type TYPE to static ones.
- ADDRESS might be needed to resolve the subrange bounds, it is the location
- of the associated array. */
+ ADDR_STACK is a stack of struct property_addr_info to be used
+ if needed during the dynamic resolution. */
static struct type *
-resolve_dynamic_array (struct type *type)
+resolve_dynamic_array (struct type *type,
+ struct property_addr_info *addr_stack)
{
CORE_ADDR value;
struct type *elt_type;
struct type *range_type;
struct type *ary_dim;
+ struct dynamic_prop *prop;
+ unsigned int bit_stride = 0;
gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY);
+ type = copy_type (type);
+
elt_type = type;
range_type = check_typedef (TYPE_INDEX_TYPE (elt_type));
- range_type = resolve_dynamic_range (range_type);
+ range_type = resolve_dynamic_range (range_type, addr_stack);
+
+ /* Resolve allocated/associated here before creating a new array type, which
+ will update the length of the array accordingly. */
+ prop = TYPE_ALLOCATED_PROP (type);
+ if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value))
+ {
+ TYPE_DYN_PROP_ADDR (prop) = value;
+ TYPE_DYN_PROP_KIND (prop) = PROP_CONST;
+ }
+ prop = TYPE_ASSOCIATED_PROP (type);
+ if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value))
+ {
+ TYPE_DYN_PROP_ADDR (prop) = value;
+ TYPE_DYN_PROP_KIND (prop) = PROP_CONST;
+ }
ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type));
if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY)
- elt_type = resolve_dynamic_array (TYPE_TARGET_TYPE (type));
+ elt_type = resolve_dynamic_array (ary_dim, addr_stack);
else
elt_type = TYPE_TARGET_TYPE (type);
- return create_array_type (copy_type (type),
- elt_type,
- range_type);
+ prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type);
+ if (prop != NULL)
+ {
+ int prop_eval_ok
+ = dwarf2_evaluate_property (prop, NULL, addr_stack, &value);
+
+ if (prop_eval_ok)
+ {
+ remove_dyn_prop (DYN_PROP_BYTE_STRIDE, type);
+ bit_stride = (unsigned int) (value * 8);
+ }
+ else
+ {
+ /* Could be a bug in our code, but it could also happen
+ if the DWARF info is not correct. Issue a warning,
+ and assume no byte/bit stride (leave bit_stride = 0). */
+ warning (_("cannot determine array stride for type %s"),
+ TYPE_NAME (type) ? TYPE_NAME (type) : "<no name>");
+ }
+ }
+ else
+ bit_stride = TYPE_FIELD_BITSIZE (type, 0);
+
+ return create_array_type_with_stride (type, elt_type, range_type, NULL,
+ bit_stride);
}
/* Resolve dynamic bounds of members of the union TYPE to static
- bounds. */
+ bounds. ADDR_STACK is a stack of struct property_addr_info
+ to be used if needed during the dynamic resolution. */
static struct type *
-resolve_dynamic_union (struct type *type, CORE_ADDR addr)
+resolve_dynamic_union (struct type *type,
+ struct property_addr_info *addr_stack)
{
struct type *resolved_type;
int i;
resolved_type = copy_type (type);
TYPE_FIELDS (resolved_type)
- = TYPE_ALLOC (resolved_type,
- TYPE_NFIELDS (resolved_type) * sizeof (struct field));
+ = (struct field *) TYPE_ALLOC (resolved_type,
+ TYPE_NFIELDS (resolved_type)
+ * sizeof (struct field));
memcpy (TYPE_FIELDS (resolved_type),
TYPE_FIELDS (type),
TYPE_NFIELDS (resolved_type) * sizeof (struct field));
if (field_is_static (&TYPE_FIELD (type, i)))
continue;
- t = resolve_dynamic_type (TYPE_FIELD_TYPE (resolved_type, i), addr);
+ t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i),
+ addr_stack, 0);
TYPE_FIELD_TYPE (resolved_type, i) = t;
if (TYPE_LENGTH (t) > max_len)
max_len = TYPE_LENGTH (t);
}
/* Resolve dynamic bounds of members of the struct TYPE to static
- bounds. */
+ bounds. ADDR_STACK is a stack of struct property_addr_info to
+ be used if needed during the dynamic resolution. */
static struct type *
-resolve_dynamic_struct (struct type *type, CORE_ADDR addr)
+resolve_dynamic_struct (struct type *type,
+ struct property_addr_info *addr_stack)
{
struct type *resolved_type;
int i;
- int vla_field = TYPE_NFIELDS (type) - 1;
+ unsigned resolved_type_bit_length = 0;
gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT);
gdb_assert (TYPE_NFIELDS (type) > 0);
resolved_type = copy_type (type);
TYPE_FIELDS (resolved_type)
- = TYPE_ALLOC (resolved_type,
- TYPE_NFIELDS (resolved_type) * sizeof (struct field));
+ = (struct field *) TYPE_ALLOC (resolved_type,
+ TYPE_NFIELDS (resolved_type)
+ * sizeof (struct field));
memcpy (TYPE_FIELDS (resolved_type),
TYPE_FIELDS (type),
TYPE_NFIELDS (resolved_type) * sizeof (struct field));
for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i)
{
- struct type *t;
+ unsigned new_bit_length;
+ struct property_addr_info pinfo;
if (field_is_static (&TYPE_FIELD (type, i)))
continue;
- t = resolve_dynamic_type (TYPE_FIELD_TYPE (resolved_type, i), addr);
-
- /* This is a bit odd. We do not support a VLA in any position
- of a struct except for the last. GCC does have an extension
- that allows a VLA in the middle of a structure, but the DWARF
- it emits is relatively useless to us, so we can't represent
- such a type properly -- and even if we could, we do not have
- enough information to redo structure layout anyway.
- Nevertheless, we check all the fields in case something odd
- slips through, since it's better to see an error than
- incorrect results. */
- if (t != TYPE_FIELD_TYPE (resolved_type, i)
- && i != vla_field)
- error (_("Attempt to resolve a variably-sized type which appears "
- "in the interior of a structure type"));
-
- TYPE_FIELD_TYPE (resolved_type, i) = t;
+ /* As we know this field is not a static field, the field's
+ field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify
+ this is the case, but only trigger a simple error rather
+ than an internal error if that fails. While failing
+ that verification indicates a bug in our code, the error
+ is not severe enough to suggest to the user he stops
+ his debugging session because of it. */
+ if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS)
+ error (_("Cannot determine struct field location"
+ " (invalid location kind)"));
+
+ pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i));
+ pinfo.valaddr = addr_stack->valaddr;
+ pinfo.addr
+ = (addr_stack->addr
+ + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT));
+ pinfo.next = addr_stack;
+
+ TYPE_FIELD_TYPE (resolved_type, i)
+ = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i),
+ &pinfo, 0);
+ gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i)
+ == FIELD_LOC_KIND_BITPOS);
+
+ new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i);
+ if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0)
+ new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i);
+ else
+ new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i))
+ * TARGET_CHAR_BIT);
+
+ /* Normally, we would use the position and size of the last field
+ to determine the size of the enclosing structure. But GCC seems
+ to be encoding the position of some fields incorrectly when
+ the struct contains a dynamic field that is not placed last.
+ So we compute the struct size based on the field that has
+ the highest position + size - probably the best we can do. */
+ if (new_bit_length > resolved_type_bit_length)
+ resolved_type_bit_length = new_bit_length;
}
- /* Due to the above restrictions we can successfully compute
- the size of the resulting structure here, as the offset of
- the final field plus its size. */
- TYPE_LENGTH (resolved_type)
- = (TYPE_FIELD_BITPOS (resolved_type, vla_field) / TARGET_CHAR_BIT
- + TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, vla_field)));
+ /* The length of a type won't change for fortran, but it does for C and Ada.
+ For fortran the size of dynamic fields might change over time but not the
+ type length of the structure. If we adapt it, we run into problems
+ when calculating the element offset for arrays of structs. */
+ if (current_language->la_language != language_fortran)
+ TYPE_LENGTH (resolved_type)
+ = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT;
+
+ /* The Ada language uses this field as a cache for static fixed types: reset
+ it as RESOLVED_TYPE must have its own static fixed type. */
+ TYPE_TARGET_TYPE (resolved_type) = NULL;
+
return resolved_type;
}
-/* See gdbtypes.h */
+/* Worker for resolved_dynamic_type. */
-struct type *
-resolve_dynamic_type (struct type *type, CORE_ADDR addr)
+static struct type *
+resolve_dynamic_type_internal (struct type *type,
+ struct property_addr_info *addr_stack,
+ int top_level)
{
struct type *real_type = check_typedef (type);
struct type *resolved_type = type;
+ struct dynamic_prop *prop;
+ CORE_ADDR value;
- if (!is_dynamic_type (real_type))
+ if (!is_dynamic_type_internal (real_type, top_level))
return type;
- switch (TYPE_CODE (type))
+ if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
{
- case TYPE_CODE_TYPEDEF:
- resolved_type = copy_type (type);
- TYPE_TARGET_TYPE (resolved_type)
- = resolve_dynamic_type (TYPE_TARGET_TYPE (type), addr);
- break;
+ resolved_type = copy_type (type);
+ TYPE_TARGET_TYPE (resolved_type)
+ = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack,
+ top_level);
+ }
+ else
+ {
+ /* Before trying to resolve TYPE, make sure it is not a stub. */
+ type = real_type;
- case TYPE_CODE_REF:
+ switch (TYPE_CODE (type))
{
- CORE_ADDR target_addr = read_memory_typed_address (addr, type);
+ case TYPE_CODE_REF:
+ {
+ struct property_addr_info pinfo;
- resolved_type = copy_type (type);
- TYPE_TARGET_TYPE (resolved_type)
- = resolve_dynamic_type (TYPE_TARGET_TYPE (type), target_addr);
+ pinfo.type = check_typedef (TYPE_TARGET_TYPE (type));
+ pinfo.valaddr = NULL;
+ if (addr_stack->valaddr != NULL)
+ pinfo.addr = extract_typed_address (addr_stack->valaddr, type);
+ else
+ pinfo.addr = read_memory_typed_address (addr_stack->addr, type);
+ pinfo.next = addr_stack;
+
+ resolved_type = copy_type (type);
+ TYPE_TARGET_TYPE (resolved_type)
+ = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type),
+ &pinfo, top_level);
+ break;
+ }
+
+ case TYPE_CODE_ARRAY:
+ resolved_type = resolve_dynamic_array (type, addr_stack);
break;
- }
- case TYPE_CODE_ARRAY:
- resolved_type = resolve_dynamic_array (type);
- break;
+ case TYPE_CODE_RANGE:
+ resolved_type = resolve_dynamic_range (type, addr_stack);
+ break;
- case TYPE_CODE_RANGE:
- resolved_type = resolve_dynamic_range (type);
- break;
+ case TYPE_CODE_UNION:
+ resolved_type = resolve_dynamic_union (type, addr_stack);
+ break;
- case TYPE_CODE_UNION:
- resolved_type = resolve_dynamic_union (type, addr);
- break;
+ case TYPE_CODE_STRUCT:
+ resolved_type = resolve_dynamic_struct (type, addr_stack);
+ break;
+ }
+ }
- case TYPE_CODE_STRUCT:
- resolved_type = resolve_dynamic_struct (type, addr);
- break;
+ /* Resolve data_location attribute. */
+ prop = TYPE_DATA_LOCATION (resolved_type);
+ if (prop != NULL
+ && dwarf2_evaluate_property (prop, NULL, addr_stack, &value))
+ {
+ TYPE_DYN_PROP_ADDR (prop) = value;
+ TYPE_DYN_PROP_KIND (prop) = PROP_CONST;
}
return resolved_type;
}
+/* See gdbtypes.h */
+
+struct type *
+resolve_dynamic_type (struct type *type, const gdb_byte *valaddr,
+ CORE_ADDR addr)
+{
+ struct property_addr_info pinfo
+ = {check_typedef (type), valaddr, addr, NULL};
+
+ return resolve_dynamic_type_internal (type, &pinfo, 1);
+}
+
+/* See gdbtypes.h */
+
+struct dynamic_prop *
+get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type)
+{
+ struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type);
+
+ while (node != NULL)
+ {
+ if (node->prop_kind == prop_kind)
+ return &node->prop;
+ node = node->next;
+ }
+ return NULL;
+}
+
+/* See gdbtypes.h */
+
+void
+add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop,
+ struct type *type)
+{
+ struct dynamic_prop_list *temp;
+
+ gdb_assert (TYPE_OBJFILE_OWNED (type));
+
+ temp = XOBNEW (&TYPE_OBJFILE (type)->objfile_obstack,
+ struct dynamic_prop_list);
+ temp->prop_kind = prop_kind;
+ temp->prop = prop;
+ temp->next = TYPE_DYN_PROP_LIST (type);
+
+ TYPE_DYN_PROP_LIST (type) = temp;
+}
+
+/* Remove dynamic property from TYPE in case it exists. */
+
+void
+remove_dyn_prop (enum dynamic_prop_node_kind prop_kind,
+ struct type *type)
+{
+ struct dynamic_prop_list *prev_node, *curr_node;
+
+ curr_node = TYPE_DYN_PROP_LIST (type);
+ prev_node = NULL;
+
+ while (NULL != curr_node)
+ {
+ if (curr_node->prop_kind == prop_kind)
+ {
+ /* Update the linked list but don't free anything.
+ The property was allocated on objstack and it is not known
+ if we are on top of it. Nevertheless, everything is released
+ when the complete objstack is freed. */
+ if (NULL == prev_node)
+ TYPE_DYN_PROP_LIST (type) = curr_node->next;
+ else
+ prev_node->next = curr_node->next;
+
+ return;
+ }
+
+ prev_node = curr_node;
+ curr_node = curr_node->next;
+ }
+}
+
/* Find the real type of TYPE. This function returns the real type,
after removing all layers of typedefs, and completing opaque or stub
types. Completion changes the TYPE argument, but stripping of
stub_noname_complaint ();
return make_qualified_type (type, instance_flags, NULL);
}
- sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0);
+ sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol;
if (sym)
TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym);
else /* TYPE_CODE_UNDEF */
stub_noname_complaint ();
return make_qualified_type (type, instance_flags, NULL);
}
- sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0);
+ sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol;
if (sym)
{
/* Same as above for opaque types, we can replace the stub
if (TYPE_TARGET_STUB (type))
{
- struct type *range_type;
struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type))
{
struct ui_file *saved_gdb_stderr;
struct type *type = NULL; /* Initialize to keep gcc happy. */
- volatile struct gdb_exception except;
/* Suppress error messages. */
saved_gdb_stderr = gdb_stderr;
- gdb_stderr = ui_file_new ();
+ gdb_stderr = &null_stream;
/* Call parse_and_eval_type() without fear of longjmp()s. */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
type = parse_and_eval_type (p, length);
}
-
- if (except.reason < 0)
- type = builtin_type (gdbarch)->builtin_void;
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ type = builtin_type (gdbarch)->builtin_void;
+ }
+ END_CATCH
/* Stop suppressing error messages. */
- ui_file_delete (gdb_stderr);
gdb_stderr = saved_gdb_stderr;
return type;
}
/* If we read one argument and it was ``void'', don't count it. */
- if (strncmp (argtypetext, "(void)", 6) == 0)
+ if (startswith (argtypetext, "(void)"))
argcount -= 1;
/* We need one extra slot, for the THIS pointer. */
/* Now update the old "stub" type into a real type. */
mtype = TYPE_FN_FIELD_TYPE (f, signature_id);
- TYPE_DOMAIN_TYPE (mtype) = type;
- TYPE_FIELDS (mtype) = argtypes;
- TYPE_NFIELDS (mtype) = argcount;
+ /* MTYPE may currently be a function (TYPE_CODE_FUNC).
+ We want a method (TYPE_CODE_METHOD). */
+ smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype),
+ argtypes, argcount, p[-2] == '.');
TYPE_STUB (mtype) = 0;
TYPE_FN_FIELD_STUB (f, signature_id) = 0;
- if (p[-2] == '.')
- TYPE_VARARGS (mtype) = 1;
xfree (demangled_name);
}
Therefore the only thing we need to handle here are v2 operator
names. */
- if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0)
+ if (found_stub && !startswith (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z"))
{
int ret;
char dem_opname[256];
TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *)
TYPE_ALLOC (type, sizeof (struct cplus_struct_type));
*(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default;
+ set_type_vptr_fieldno (type, -1);
+}
+
+const struct gnat_aux_type gnat_aux_default =
+ { NULL };
+
+/* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF,
+ and allocate the associated gnat-specific data. The gnat-specific
+ data is also initialized to gnat_aux_default. */
+
+void
+allocate_gnat_aux_type (struct type *type)
+{
+ TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF;
+ TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *)
+ TYPE_ALLOC (type, sizeof (struct gnat_aux_type));
+ *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default;
}
-const struct gnat_aux_type gnat_aux_default =
- { NULL };
+/* Helper function to initialize a newly allocated type. Set type code
+ to CODE and initialize the type-specific fields accordingly. */
+
+static void
+set_type_code (struct type *type, enum type_code code)
+{
+ TYPE_CODE (type) = code;
+
+ switch (code)
+ {
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ case TYPE_CODE_NAMESPACE:
+ INIT_CPLUS_SPECIFIC (type);
+ break;
+ case TYPE_CODE_FLT:
+ TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT;
+ break;
+ case TYPE_CODE_FUNC:
+ INIT_FUNC_SPECIFIC (type);
+ break;
+ }
+}
+
+/* Helper function to verify floating-point format and size.
+ BIT is the type size in bits; if BIT equals -1, the size is
+ determined by the floatformat. Returns size to be used. */
+
+static int
+verify_floatformat (int bit, const struct floatformat *floatformat)
+{
+ gdb_assert (floatformat != NULL);
+
+ if (bit == -1)
+ bit = floatformat->totalsize;
+
+ gdb_assert (bit >= 0);
+ gdb_assert (bit >= floatformat->totalsize);
+
+ return bit;
+}
+
+/* Return the floating-point format for a floating-point variable of
+ type TYPE. */
+
+const struct floatformat *
+floatformat_from_type (const struct type *type)
+{
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT);
+ gdb_assert (TYPE_FLOATFORMAT (type));
+ return TYPE_FLOATFORMAT (type);
+}
+
+/* Helper function to initialize the standard scalar types.
+
+ If NAME is non-NULL, then it is used to initialize the type name.
+ Note that NAME is not copied; it is required to have a lifetime at
+ least as long as OBJFILE. */
+
+struct type *
+init_type (struct objfile *objfile, enum type_code code, int bit,
+ const char *name)
+{
+ struct type *type;
+
+ type = alloc_type (objfile);
+ set_type_code (type, code);
+ gdb_assert ((bit % TARGET_CHAR_BIT) == 0);
+ TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT;
+ TYPE_NAME (type) = name;
+
+ return type;
+}
+
+/* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE,
+ to use with variables that have no debug info. NAME is the type
+ name. */
+
+static struct type *
+init_nodebug_var_type (struct objfile *objfile, const char *name)
+{
+ return init_type (objfile, TYPE_CODE_ERROR, 0, name);
+}
+
+/* Allocate a TYPE_CODE_INT type structure associated with OBJFILE.
+ 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 *
+init_integer_type (struct objfile *objfile,
+ int bit, int unsigned_p, const char *name)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_INT, bit, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE.
+ 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 *
+init_character_type (struct objfile *objfile,
+ int bit, int unsigned_p, const char *name)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_CHAR, bit, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE.
+ 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 *
+init_boolean_type (struct objfile *objfile,
+ int bit, int unsigned_p, const char *name)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_BOOL, bit, name);
+ if (unsigned_p)
+ TYPE_UNSIGNED (t) = 1;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE.
+ 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 *
+init_float_type (struct objfile *objfile,
+ int bit, const char *name,
+ const struct floatformat **floatformats)
+{
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
+ const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)];
+ struct type *t;
+
+ bit = verify_floatformat (bit, fmt);
+ t = init_type (objfile, TYPE_CODE_FLT, bit, name);
+ TYPE_FLOATFORMAT (t) = fmt;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE.
+ BIT is the type size in bits. NAME is the type name. */
+
+struct type *
+init_decfloat_type (struct objfile *objfile, int bit, const char *name)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name);
+ return t;
+}
+
+/* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE.
+ NAME is the type name. TARGET_TYPE is the component float type. */
+
+struct type *
+init_complex_type (struct objfile *objfile,
+ const char *name, struct type *target_type)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_COMPLEX,
+ 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name);
+ TYPE_TARGET_TYPE (t) = target_type;
+ return t;
+}
+
+/* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE.
+ BIT is the pointer type size in bits. NAME is the type name.
+ TARGET_TYPE is the pointer target type. Always sets the pointer type's
+ TYPE_UNSIGNED flag. */
+
+struct type *
+init_pointer_type (struct objfile *objfile,
+ int bit, const char *name, struct type *target_type)
+{
+ struct type *t;
+
+ t = init_type (objfile, TYPE_CODE_PTR, bit, name);
+ TYPE_TARGET_TYPE (t) = target_type;
+ TYPE_UNSIGNED (t) = 1;
+ return t;
+}
+
+/* See gdbtypes.h. */
+
+unsigned
+type_raw_align (struct type *type)
+{
+ if (type->align_log2 != 0)
+ return 1 << (type->align_log2 - 1);
+ return 0;
+}
+
+/* See gdbtypes.h. */
+
+unsigned
+type_align (struct type *type)
+{
+ unsigned raw_align = type_raw_align (type);
+ if (raw_align != 0)
+ return raw_align;
+
+ ULONGEST align = 0;
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_PTR:
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_FLAGS:
+ case TYPE_CODE_INT:
+ case TYPE_CODE_FLT:
+ case TYPE_CODE_ENUM:
+ case TYPE_CODE_REF:
+ case TYPE_CODE_RVALUE_REF:
+ case TYPE_CODE_CHAR:
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_DECFLOAT:
+ {
+ struct gdbarch *arch = get_type_arch (type);
+ align = gdbarch_type_align (arch, type);
+ }
+ break;
+
+ case TYPE_CODE_ARRAY:
+ case TYPE_CODE_COMPLEX:
+ case TYPE_CODE_TYPEDEF:
+ align = type_align (TYPE_TARGET_TYPE (type));
+ break;
-/* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF,
- and allocate the associated gnat-specific data. The gnat-specific
- data is also initialized to gnat_aux_default. */
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ {
+ if (TYPE_NFIELDS (type) == 0)
+ {
+ /* An empty struct has alignment 1. */
+ align = 1;
+ break;
+ }
+ for (unsigned i = 0; i < TYPE_NFIELDS (type); ++i)
+ {
+ ULONGEST f_align = type_align (TYPE_FIELD_TYPE (type, i));
+ if (f_align == 0)
+ {
+ /* Don't pretend we know something we don't. */
+ align = 0;
+ break;
+ }
+ if (f_align > align)
+ align = f_align;
+ }
+ }
+ break;
-void
-allocate_gnat_aux_type (struct type *type)
-{
- TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF;
- TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *)
- TYPE_ALLOC (type, sizeof (struct gnat_aux_type));
- *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default;
-}
+ case TYPE_CODE_SET:
+ case TYPE_CODE_RANGE:
+ case TYPE_CODE_STRING:
+ /* Not sure what to do here, and these can't appear in C or C++
+ anyway. */
+ break;
-/* Helper function to initialize the standard scalar types.
+ case TYPE_CODE_METHODPTR:
+ case TYPE_CODE_MEMBERPTR:
+ align = TYPE_LENGTH (type);
+ break;
- If NAME is non-NULL, then it is used to initialize the type name.
- Note that NAME is not copied; it is required to have a lifetime at
- least as long as OBJFILE. */
+ case TYPE_CODE_VOID:
+ align = 1;
+ break;
-struct type *
-init_type (enum type_code code, int length, int flags,
- const char *name, struct objfile *objfile)
-{
- struct type *type;
+ case TYPE_CODE_ERROR:
+ case TYPE_CODE_METHOD:
+ default:
+ break;
+ }
- type = alloc_type (objfile);
- TYPE_CODE (type) = code;
- TYPE_LENGTH (type) = length;
-
- gdb_assert (!(flags & (TYPE_FLAG_MIN - 1)));
- if (flags & TYPE_FLAG_UNSIGNED)
- TYPE_UNSIGNED (type) = 1;
- if (flags & TYPE_FLAG_NOSIGN)
- TYPE_NOSIGN (type) = 1;
- if (flags & TYPE_FLAG_STUB)
- TYPE_STUB (type) = 1;
- if (flags & TYPE_FLAG_TARGET_STUB)
- TYPE_TARGET_STUB (type) = 1;
- if (flags & TYPE_FLAG_STATIC)
- TYPE_STATIC (type) = 1;
- if (flags & TYPE_FLAG_PROTOTYPED)
- TYPE_PROTOTYPED (type) = 1;
- if (flags & TYPE_FLAG_INCOMPLETE)
- TYPE_INCOMPLETE (type) = 1;
- if (flags & TYPE_FLAG_VARARGS)
- TYPE_VARARGS (type) = 1;
- if (flags & TYPE_FLAG_VECTOR)
- TYPE_VECTOR (type) = 1;
- if (flags & TYPE_FLAG_STUB_SUPPORTED)
- TYPE_STUB_SUPPORTED (type) = 1;
- if (flags & TYPE_FLAG_FIXED_INSTANCE)
- TYPE_FIXED_INSTANCE (type) = 1;
- if (flags & TYPE_FLAG_GNU_IFUNC)
- TYPE_GNU_IFUNC (type) = 1;
+ if ((align & (align - 1)) != 0)
+ {
+ /* Not a power of 2, so pass. */
+ align = 0;
+ }
- TYPE_NAME (type) = name;
+ return align;
+}
- /* C++ fancies. */
+/* See gdbtypes.h. */
- if (name && strcmp (name, "char") == 0)
- TYPE_NOSIGN (type) = 1;
+bool
+set_type_align (struct type *type, ULONGEST align)
+{
+ /* Must be a power of 2. Zero is ok. */
+ gdb_assert ((align & (align - 1)) == 0);
- switch (code)
+ unsigned result = 0;
+ while (align != 0)
{
- case TYPE_CODE_STRUCT:
- case TYPE_CODE_UNION:
- case TYPE_CODE_NAMESPACE:
- INIT_CPLUS_SPECIFIC (type);
- break;
- case TYPE_CODE_FLT:
- TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT;
- break;
- case TYPE_CODE_FUNC:
- INIT_FUNC_SPECIFIC (type);
- break;
+ ++result;
+ align >>= 1;
}
- return type;
+
+ if (result >= (1 << TYPE_ALIGN_BITS))
+ return false;
+
+ type->align_log2 = result;
+ return true;
}
+
\f
/* Queries on types. */
{
/* FIXME: Should we return true for references as well as
pointers? */
- CHECK_TYPEDEF (t);
+ t = check_typedef (t);
return
(t != NULL
&& TYPE_CODE (t) == TYPE_CODE_PTR
int
is_integral_type (struct type *t)
{
- CHECK_TYPEDEF (t);
+ t = check_typedef (t);
return
((t != NULL)
&& ((TYPE_CODE (t) == TYPE_CODE_INT)
|| (TYPE_CODE (t) == TYPE_CODE_BOOL)));
}
+int
+is_floating_type (struct type *t)
+{
+ t = check_typedef (t);
+ return
+ ((t != NULL)
+ && ((TYPE_CODE (t) == TYPE_CODE_FLT)
+ || (TYPE_CODE (t) == TYPE_CODE_DECFLOAT)));
+}
+
/* Return true if TYPE is scalar. */
-static int
+int
is_scalar_type (struct type *type)
{
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
switch (TYPE_CODE (type))
{
int
is_scalar_type_recursive (struct type *t)
{
- CHECK_TYPEDEF (t);
+ t = check_typedef (t);
if (is_scalar_type (t))
return 1;
return 0;
}
+/* Return true is T is a class or a union. False otherwise. */
+
+int
+class_or_union_p (const struct type *t)
+{
+ return (TYPE_CODE (t) == TYPE_CODE_STRUCT
+ || TYPE_CODE (t) == TYPE_CODE_UNION);
+}
+
/* A helper function which returns true if types A and B represent the
"same" class type. This is true if the types have the same main
type, or the same name. */
distance_to_ancestor (A, D, 1) = -1. */
static int
-distance_to_ancestor (struct type *base, struct type *dclass, int public)
+distance_to_ancestor (struct type *base, struct type *dclass, int is_public)
{
int i;
int d;
- CHECK_TYPEDEF (base);
- CHECK_TYPEDEF (dclass);
+ base = check_typedef (base);
+ dclass = check_typedef (dclass);
if (class_types_same_p (base, dclass))
return 0;
for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++)
{
- if (public && ! BASETYPE_VIA_PUBLIC (dclass, i))
+ if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i))
continue;
- d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public);
+ d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public);
if (d >= 0)
return 1 + d;
}
{
int i, count = 0;
- CHECK_TYPEDEF (base);
- CHECK_TYPEDEF (dclass);
+ base = check_typedef (base);
+ dclass = check_typedef (dclass);
for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i)
{
struct value **args, int nargs)
{
int i;
- struct badness_vector *bv;
+ struct badness_vector *bv = XNEW (struct badness_vector);
int min_len = nparms < nargs ? nparms : nargs;
- bv = xmalloc (sizeof (struct badness_vector));
bv->length = nargs + 1; /* add 1 for the length-match rank. */
bv->rank = XNEWVEC (struct rank, nargs + 1);
check_types_equal (struct type *type1, struct type *type2,
VEC (type_equality_entry_d) **worklist)
{
- CHECK_TYPEDEF (type1);
- CHECK_TYPEDEF (type2);
+ type1 = check_typedef (type1);
+ type2 = check_typedef (type2);
if (type1 == type2)
return 1;
if (TYPE_CODE (type1) == TYPE_CODE_RANGE)
{
- if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2),
- sizeof (*TYPE_RANGE_DATA (type1))) != 0)
+ if (*TYPE_RANGE_DATA (type1) != *TYPE_RANGE_DATA (type2))
return 0;
}
else
int
types_deeply_equal (struct type *type1, struct type *type2)
{
- volatile struct gdb_exception except;
+ struct gdb_exception except = exception_none;
int result = 0;
struct bcache *cache;
VEC (type_equality_entry_d) *worklist = NULL;
entry.type2 = type2;
VEC_safe_push (type_equality_entry_d, worklist, &entry);
- TRY_CATCH (except, RETURN_MASK_ALL)
+ /* check_types_worklist calls several nested helper functions, some
+ of which can raise a GDB exception, so we just check and rethrow
+ here. If there is a GDB exception, a comparison is not capable
+ (or trusted), so exit. */
+ TRY
{
result = check_types_worklist (&worklist, cache);
}
- /* check_types_worklist calls several nested helper functions,
- some of which can raise a GDB Exception, so we just check
- and rethrow here. If there is a GDB exception, a comparison
- is not capable (or trusted), so exit. */
+ CATCH (ex, RETURN_MASK_ALL)
+ {
+ except = ex;
+ }
+ END_CATCH
+
bcache_xfree (cache);
VEC_free (type_equality_entry_d, worklist);
+
/* Rethrow if there was a problem. */
if (except.reason < 0)
throw_exception (except);
return result;
}
+
+/* Allocated status of type TYPE. Return zero if type TYPE is allocated.
+ Otherwise return one. */
+
+int
+type_not_allocated (const struct type *type)
+{
+ struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type);
+
+ return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST
+ && !TYPE_DYN_PROP_ADDR (prop));
+}
+
+/* Associated status of type TYPE. Return zero if type TYPE is associated.
+ Otherwise return one. */
+
+int
+type_not_associated (const struct type *type)
+{
+ struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type);
+
+ return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST
+ && !TYPE_DYN_PROP_ADDR (prop));
+}
\f
/* Compare one type (PARM) for compatibility with another (ARG).
* PARM is intended to be the parameter type of a function; and
{
struct rank rank = {0,0};
- if (types_equal (parm, arg))
- return EXACT_MATCH_BADNESS;
-
/* Resolve typedefs */
if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF)
parm = check_typedef (parm);
if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF)
arg = check_typedef (arg);
+ if (TYPE_IS_REFERENCE (parm) && value != NULL)
+ {
+ if (VALUE_LVAL (value) == not_lval)
+ {
+ /* Rvalues should preferably bind to rvalue references or const
+ lvalue references. */
+ if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF)
+ rank.subrank = REFERENCE_CONVERSION_RVALUE;
+ else if (TYPE_CONST (TYPE_TARGET_TYPE (parm)))
+ rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE;
+ else
+ return INCOMPATIBLE_TYPE_BADNESS;
+ return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS);
+ }
+ else
+ {
+ /* Lvalues should prefer lvalue overloads. */
+ if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF)
+ {
+ rank.subrank = REFERENCE_CONVERSION_RVALUE;
+ return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS);
+ }
+ }
+ }
+
+ if (types_equal (parm, arg))
+ {
+ struct type *t1 = parm;
+ struct type *t2 = arg;
+
+ /* For pointers and references, compare target type. */
+ if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm))
+ {
+ t1 = TYPE_TARGET_TYPE (parm);
+ t2 = TYPE_TARGET_TYPE (arg);
+ }
+
+ /* Make sure they are CV equal, too. */
+ if (TYPE_CONST (t1) != TYPE_CONST (t2))
+ rank.subrank |= CV_CONVERSION_CONST;
+ if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2))
+ rank.subrank |= CV_CONVERSION_VOLATILE;
+ if (rank.subrank != 0)
+ return sum_ranks (CV_CONVERSION_BADNESS, rank);
+ return EXACT_MATCH_BADNESS;
+ }
+
/* See through references, since we can almost make non-references
references. */
- if (TYPE_CODE (arg) == TYPE_CODE_REF)
+
+ if (TYPE_IS_REFERENCE (arg))
return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL),
REFERENCE_CONVERSION_BADNESS));
- if (TYPE_CODE (parm) == TYPE_CODE_REF)
+ if (TYPE_IS_REFERENCE (parm))
return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL),
REFERENCE_CONVERSION_BADNESS));
if (overload_debug)
return INCOMPATIBLE_TYPE_BADNESS;
case TYPE_CODE_ARRAY:
- if (types_equal (TYPE_TARGET_TYPE (parm),
- TYPE_TARGET_TYPE (arg)))
- return EXACT_MATCH_BADNESS;
- return INCOMPATIBLE_TYPE_BADNESS;
+ {
+ struct type *t1 = TYPE_TARGET_TYPE (parm);
+ struct type *t2 = TYPE_TARGET_TYPE (arg);
+
+ if (types_equal (t1, t2))
+ {
+ /* Make sure they are CV equal. */
+ if (TYPE_CONST (t1) != TYPE_CONST (t2))
+ rank.subrank |= CV_CONVERSION_CONST;
+ if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2))
+ rank.subrank |= CV_CONVERSION_VOLATILE;
+ if (rank.subrank != 0)
+ return sum_ranks (CV_CONVERSION_BADNESS, rank);
+ return EXACT_MATCH_BADNESS;
+ }
+ return INCOMPATIBLE_TYPE_BADNESS;
+ }
case TYPE_CODE_FUNC:
return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL);
case TYPE_CODE_INT:
return INTEGER_CONVERSION_BADNESS;
else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm))
return INTEGER_PROMOTION_BADNESS;
- /* >>> !! else fall through !! <<< */
+ /* fall through */
case TYPE_CODE_CHAR:
/* Deal with signed, unsigned, and plain chars for C++ and
with int cases falling through from previous case. */
}
break;
case TYPE_CODE_STRUCT:
- /* currently same as TYPE_CODE_CLASS. */
switch (TYPE_CODE (arg))
{
case TYPE_CODE_STRUCT:
rank.subrank = distance_to_ancestor (parm, arg, 0);
if (rank.subrank >= 0)
return sum_ranks (BASE_CONVERSION_BADNESS, rank);
- /* else fall through */
+ /* fall through */
default:
return INCOMPATIBLE_TYPE_BADNESS;
}
situation. */
static void
-print_arg_types (struct field *args, int nargs, int spaces)
+print_args (struct field *args, int nargs, int spaces)
{
if (args != NULL)
{
int i;
for (i = 0; i < nargs; i++)
- recursive_dump_type (args[i].type, spaces + 2);
+ {
+ printfi_filtered (spaces, "[%d] name '%s'\n", i,
+ args[i].name != NULL ? args[i].name : "<NULL>");
+ recursive_dump_type (args[i].type, spaces + 2);
+ }
}
}
gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx),
gdb_stdout);
printf_filtered ("\n");
-
- print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx),
- TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f,
- overload_idx)),
- spaces);
+ print_args (TYPE_FN_FIELD_ARGS (f, overload_idx),
+ TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)),
+ spaces + 8 + 2);
printfi_filtered (spaces + 8, "fcontext ");
gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx),
gdb_stdout);
static void
print_cplus_stuff (struct type *type, int spaces)
{
+ printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type));
+ printfi_filtered (spaces, "vptr_basetype ");
+ gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout);
+ puts_filtered ("\n");
+ if (TYPE_VPTR_BASETYPE (type) != NULL)
+ recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2);
+
printfi_filtered (spaces, "n_baseclasses %d\n",
TYPE_N_BASECLASSES (type));
printfi_filtered (spaces, "nfn_fields %d\n",
{
struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type);
- recursive_dump_type (descriptive_type, spaces + 2);
+ if (descriptive_type == NULL)
+ printfi_filtered (spaces + 2, "no descriptive type\n");
+ else
+ {
+ printfi_filtered (spaces + 2, "descriptive type\n");
+ recursive_dump_type (descriptive_type, spaces + 4);
+ }
}
static struct obstack dont_print_type_obstack;
TYPE_INSTANCE_FLAGS (type));
if (TYPE_CONST (type))
{
- puts_filtered (" TYPE_FLAG_CONST");
+ puts_filtered (" TYPE_CONST");
}
if (TYPE_VOLATILE (type))
{
- puts_filtered (" TYPE_FLAG_VOLATILE");
+ puts_filtered (" TYPE_VOLATILE");
}
if (TYPE_CODE_SPACE (type))
{
- puts_filtered (" TYPE_FLAG_CODE_SPACE");
+ puts_filtered (" TYPE_CODE_SPACE");
}
if (TYPE_DATA_SPACE (type))
{
- puts_filtered (" TYPE_FLAG_DATA_SPACE");
+ puts_filtered (" TYPE_DATA_SPACE");
}
if (TYPE_ADDRESS_CLASS_1 (type))
{
- puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1");
+ puts_filtered (" TYPE_ADDRESS_CLASS_1");
}
if (TYPE_ADDRESS_CLASS_2 (type))
{
- puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2");
+ puts_filtered (" TYPE_ADDRESS_CLASS_2");
}
if (TYPE_RESTRICT (type))
{
- puts_filtered (" TYPE_FLAG_RESTRICT");
+ puts_filtered (" TYPE_RESTRICT");
+ }
+ if (TYPE_ATOMIC (type))
+ {
+ puts_filtered (" TYPE_ATOMIC");
}
puts_filtered ("\n");
printfi_filtered (spaces, "flags");
if (TYPE_UNSIGNED (type))
{
- puts_filtered (" TYPE_FLAG_UNSIGNED");
+ puts_filtered (" TYPE_UNSIGNED");
}
if (TYPE_NOSIGN (type))
{
- puts_filtered (" TYPE_FLAG_NOSIGN");
+ puts_filtered (" TYPE_NOSIGN");
}
if (TYPE_STUB (type))
{
- puts_filtered (" TYPE_FLAG_STUB");
+ puts_filtered (" TYPE_STUB");
}
if (TYPE_TARGET_STUB (type))
{
- puts_filtered (" TYPE_FLAG_TARGET_STUB");
- }
- if (TYPE_STATIC (type))
- {
- puts_filtered (" TYPE_FLAG_STATIC");
+ puts_filtered (" TYPE_TARGET_STUB");
}
if (TYPE_PROTOTYPED (type))
{
- puts_filtered (" TYPE_FLAG_PROTOTYPED");
+ puts_filtered (" TYPE_PROTOTYPED");
}
if (TYPE_INCOMPLETE (type))
{
- puts_filtered (" TYPE_FLAG_INCOMPLETE");
+ puts_filtered (" TYPE_INCOMPLETE");
}
if (TYPE_VARARGS (type))
{
- puts_filtered (" TYPE_FLAG_VARARGS");
+ puts_filtered (" TYPE_VARARGS");
}
/* This is used for things like AltiVec registers on ppc. Gcc emits
an attribute for the array type, which tells whether or not we
have a vector, instead of a regular array. */
if (TYPE_VECTOR (type))
{
- puts_filtered (" TYPE_FLAG_VECTOR");
+ puts_filtered (" TYPE_VECTOR");
}
if (TYPE_FIXED_INSTANCE (type))
{
idx, plongest (TYPE_FIELD_ENUMVAL (type, idx)));
else
printfi_filtered (spaces + 2,
- "[%d] bitpos %d bitsize %d type ",
- idx, TYPE_FIELD_BITPOS (type, idx),
+ "[%d] bitpos %s bitsize %d type ",
+ idx, plongest (TYPE_FIELD_BITPOS (type, idx)),
TYPE_FIELD_BITSIZE (type, idx));
gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout);
printf_filtered (" name '%s' (",
TYPE_HIGH_BOUND_UNDEFINED (type)
? " (undefined)" : "");
}
- printfi_filtered (spaces, "vptr_basetype ");
- gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout);
- puts_filtered ("\n");
- if (TYPE_VPTR_BASETYPE (type) != NULL)
- {
- recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2);
- }
- printfi_filtered (spaces, "vptr_fieldno %d\n",
- TYPE_VPTR_FIELDNO (type));
switch (TYPE_SPECIFIC_FIELD (type))
{
case TYPE_SPECIFIC_FLOATFORMAT:
printfi_filtered (spaces, "floatformat ");
- if (TYPE_FLOATFORMAT (type) == NULL)
+ if (TYPE_FLOATFORMAT (type) == NULL
+ || TYPE_FLOATFORMAT (type)->name == NULL)
puts_filtered ("(null)");
else
- {
- puts_filtered ("{ ");
- if (TYPE_FLOATFORMAT (type)[0] == NULL
- || TYPE_FLOATFORMAT (type)[0]->name == NULL)
- puts_filtered ("(null)");
- else
- puts_filtered (TYPE_FLOATFORMAT (type)[0]->name);
-
- puts_filtered (", ");
- if (TYPE_FLOATFORMAT (type)[1] == NULL
- || TYPE_FLOATFORMAT (type)[1]->name == NULL)
- puts_filtered ("(null)");
- else
- puts_filtered (TYPE_FLOATFORMAT (type)[1]->name);
-
- puts_filtered (" }");
- }
+ puts_filtered (TYPE_FLOATFORMAT (type)->name);
puts_filtered ("\n");
break;
TYPE_CALLING_CONVENTION (type));
/* tail_call_list is not printed. */
break;
+
+ case TYPE_SPECIFIC_SELF_TYPE:
+ printfi_filtered (spaces, "self_type ");
+ gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout);
+ puts_filtered ("\n");
+ break;
}
if (spaces == 0)
/* Trivial helpers for the libiberty hash table, for mapping one
type to another. */
-struct type_pair
+struct type_pair : public allocate_on_obstack
{
- struct type *old, *new;
+ type_pair (struct type *old_, struct type *newobj_)
+ : old (old_), newobj (newobj_)
+ {}
+
+ struct type * const old, * const newobj;
};
static hashval_t
type_pair_hash (const void *item)
{
- const struct type_pair *pair = item;
+ const struct type_pair *pair = (const struct type_pair *) item;
return htab_hash_pointer (pair->old);
}
static int
type_pair_eq (const void *item_lhs, const void *item_rhs)
{
- const struct type_pair *lhs = item_lhs, *rhs = item_rhs;
+ const struct type_pair *lhs = (const struct type_pair *) item_lhs;
+ const struct type_pair *rhs = (const struct type_pair *) item_rhs;
return lhs->old == rhs->old;
}
dummy_obstack_deallocate);
}
+/* Recursively copy (deep copy) a dynamic attribute list of a type. */
+
+static struct dynamic_prop_list *
+copy_dynamic_prop_list (struct obstack *objfile_obstack,
+ struct dynamic_prop_list *list)
+{
+ struct dynamic_prop_list *copy = list;
+ struct dynamic_prop_list **node_ptr = ©
+
+ while (*node_ptr != NULL)
+ {
+ struct dynamic_prop_list *node_copy;
+
+ node_copy = ((struct dynamic_prop_list *)
+ obstack_copy (objfile_obstack, *node_ptr,
+ sizeof (struct dynamic_prop_list)));
+ node_copy->prop = (*node_ptr)->prop;
+ *node_ptr = node_copy;
+
+ node_ptr = &node_copy->next;
+ }
+
+ return copy;
+}
+
/* Recursively copy (deep copy) TYPE, if it is associated with
- OBJFILE. Return a new type allocated using malloc, a saved type if
- we have already visited TYPE (using COPIED_TYPES), or TYPE if it is
- not associated with OBJFILE. */
+ OBJFILE. Return a new type owned by the gdbarch associated with the type, a
+ saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if
+ it is not associated with OBJFILE. */
struct type *
copy_type_recursive (struct objfile *objfile,
struct type *type,
htab_t copied_types)
{
- struct type_pair *stored, pair;
void **slot;
struct type *new_type;
if it did, the type might disappear unexpectedly. */
gdb_assert (TYPE_OBJFILE (type) == objfile);
- pair.old = type;
+ struct type_pair pair (type, nullptr);
+
slot = htab_find_slot (copied_types, &pair, INSERT);
if (*slot != NULL)
- return ((struct type_pair *) *slot)->new;
+ return ((struct type_pair *) *slot)->newobj;
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. */
- stored
- = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair));
- stored->old = type;
- stored->new = new_type;
+ struct type_pair *stored
+ = new (&objfile->objfile_obstack) struct type_pair (type, new_type);
+
*slot = stored;
/* Copy the common fields of types. For the main type, we simply
/* 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) = XNEW (struct range_bounds);
*TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type);
}
+ if (TYPE_DYN_PROP_LIST (type) != NULL)
+ TYPE_DYN_PROP_LIST (new_type)
+ = copy_dynamic_prop_list (&objfile->objfile_obstack,
+ TYPE_DYN_PROP_LIST (type));
+
+
/* Copy pointers to other types. */
if (TYPE_TARGET_TYPE (type))
TYPE_TARGET_TYPE (new_type) =
copy_type_recursive (objfile,
TYPE_TARGET_TYPE (type),
copied_types);
- if (TYPE_VPTR_BASETYPE (type))
- TYPE_VPTR_BASETYPE (new_type) =
- copy_type_recursive (objfile,
- TYPE_VPTR_BASETYPE (type),
- copied_types);
+
/* Maybe copy the type_specific bits.
NOTE drow/2005-12-09: We do not copy the C++-specific bits like
base classes and methods. There's no fundamental reason why we
can't, but at the moment it is not needed. */
- if (TYPE_CODE (type) == TYPE_CODE_FLT)
- TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type);
- else if (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
- INIT_CPLUS_SPECIFIC (new_type);
+ switch (TYPE_SPECIFIC_FIELD (type))
+ {
+ case TYPE_SPECIFIC_NONE:
+ break;
+ case TYPE_SPECIFIC_FUNC:
+ INIT_FUNC_SPECIFIC (new_type);
+ TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type);
+ TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type);
+ TYPE_TAIL_CALL_LIST (new_type) = NULL;
+ break;
+ case TYPE_SPECIFIC_FLOATFORMAT:
+ TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type);
+ break;
+ case TYPE_SPECIFIC_CPLUS_STUFF:
+ INIT_CPLUS_SPECIFIC (new_type);
+ break;
+ case TYPE_SPECIFIC_GNAT_STUFF:
+ INIT_GNAT_SPECIFIC (new_type);
+ break;
+ case TYPE_SPECIFIC_SELF_TYPE:
+ set_type_self_type (new_type,
+ copy_type_recursive (objfile, TYPE_SELF_TYPE (type),
+ copied_types));
+ break;
+ default:
+ gdb_assert_not_reached ("bad type_specific_kind");
+ }
return new_type;
}
TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type),
sizeof (struct main_type));
+ if (TYPE_DYN_PROP_LIST (type) != NULL)
+ TYPE_DYN_PROP_LIST (new_type)
+ = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack,
+ TYPE_DYN_PROP_LIST (type));
return new_type;
}
struct type *
arch_type (struct gdbarch *gdbarch,
- enum type_code code, int length, char *name)
+ enum type_code code, int bit, const char *name)
{
struct type *type;
type = alloc_type_arch (gdbarch);
- TYPE_CODE (type) = code;
- TYPE_LENGTH (type) = length;
+ set_type_code (type, code);
+ gdb_assert ((bit % TARGET_CHAR_BIT) == 0);
+ TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT;
if (name)
- TYPE_NAME (type) = xstrdup (name);
+ TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name);
return type;
}
struct type *
arch_integer_type (struct gdbarch *gdbarch,
- int bit, int unsigned_p, char *name)
+ int bit, int unsigned_p, const char *name)
{
struct type *t;
- t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name);
+ t = arch_type (gdbarch, TYPE_CODE_INT, bit, name);
if (unsigned_p)
TYPE_UNSIGNED (t) = 1;
- if (name && strcmp (name, "char") == 0)
- TYPE_NOSIGN (t) = 1;
return t;
}
struct type *
arch_character_type (struct gdbarch *gdbarch,
- int bit, int unsigned_p, char *name)
+ int bit, int unsigned_p, const char *name)
{
struct type *t;
- t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name);
+ t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name);
if (unsigned_p)
TYPE_UNSIGNED (t) = 1;
struct type *
arch_boolean_type (struct gdbarch *gdbarch,
- int bit, int unsigned_p, char *name)
+ int bit, int unsigned_p, const char *name)
{
struct type *t;
- t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name);
+ t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name);
if (unsigned_p)
TYPE_UNSIGNED (t) = 1;
struct type *
arch_float_type (struct gdbarch *gdbarch,
- int bit, char *name, const struct floatformat **floatformats)
+ int bit, const char *name,
+ const struct floatformat **floatformats)
{
+ const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)];
struct type *t;
- if (bit == -1)
- {
- gdb_assert (floatformats != NULL);
- gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL);
- bit = floatformats[0]->totalsize;
- }
- gdb_assert (bit >= 0);
+ bit = verify_floatformat (bit, fmt);
+ t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name);
+ TYPE_FLOATFORMAT (t) = fmt;
+
+ return t;
+}
+
+/* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH.
+ BIT is the type size in bits. NAME is the type name. */
+
+struct type *
+arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name)
+{
+ struct type *t;
- t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name);
- TYPE_FLOATFORMAT (t) = floatformats;
+ t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name);
return t;
}
struct type *
arch_complex_type (struct gdbarch *gdbarch,
- char *name, struct type *target_type)
+ const char *name, struct type *target_type)
{
struct type *t;
t = arch_type (gdbarch, TYPE_CODE_COMPLEX,
- 2 * TYPE_LENGTH (target_type), name);
+ 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name);
+ TYPE_TARGET_TYPE (t) = target_type;
+ return t;
+}
+
+/* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH.
+ BIT is the pointer type size in bits. NAME is the type name.
+ TARGET_TYPE is the pointer target type. Always sets the pointer type's
+ TYPE_UNSIGNED flag. */
+
+struct type *
+arch_pointer_type (struct gdbarch *gdbarch,
+ int bit, const char *name, struct type *target_type)
+{
+ struct type *t;
+
+ t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name);
TYPE_TARGET_TYPE (t) = target_type;
+ TYPE_UNSIGNED (t) = 1;
return t;
}
/* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH.
- NAME is the type name. LENGTH is the size of the flag word in bytes. */
+ NAME is the type name. BIT is the size of the flag word in bits. */
struct type *
-arch_flags_type (struct gdbarch *gdbarch, char *name, int length)
+arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit)
{
- int nfields = length * TARGET_CHAR_BIT;
struct type *type;
- type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name);
+ type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name);
TYPE_UNSIGNED (type) = 1;
- TYPE_NFIELDS (type) = nfields;
- TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field));
+ TYPE_NFIELDS (type) = 0;
+ /* Pre-allocate enough space assuming every field is one bit. */
+ TYPE_FIELDS (type)
+ = (struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field));
return type;
}
/* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at
- position BITPOS is called NAME. */
+ position BITPOS is called NAME. Pass NAME as "" for fields that
+ should not be printed. */
void
-append_flags_type_flag (struct type *type, int bitpos, char *name)
+append_flags_type_field (struct type *type, int start_bitpos, int nr_bits,
+ struct type *field_type, const char *name)
{
+ int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT;
+ int field_nr = TYPE_NFIELDS (type);
+
gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS);
- gdb_assert (bitpos < TYPE_NFIELDS (type));
- gdb_assert (bitpos >= 0);
+ gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize);
+ gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize);
+ gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize);
+ gdb_assert (name != NULL);
+
+ TYPE_FIELD_NAME (type, field_nr) = xstrdup (name);
+ TYPE_FIELD_TYPE (type, field_nr) = field_type;
+ SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos);
+ TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits;
+ ++TYPE_NFIELDS (type);
+}
- if (name)
- {
- TYPE_FIELD_NAME (type, bitpos) = xstrdup (name);
- SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos);
- }
- else
- {
- /* Don't show this field to the user. */
- SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1);
- }
+/* Special version of append_flags_type_field to add a flag field.
+ 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, const char *name)
+{
+ struct gdbarch *gdbarch = get_type_arch (type);
+
+ append_flags_type_field (type, bitpos, 1,
+ builtin_type (gdbarch)->builtin_bool,
+ name);
}
/* 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)
+arch_composite_type (struct gdbarch *gdbarch, const char *name,
+ enum type_code code)
{
struct type *t;
the caller should do so. Return the new field. */
struct field *
-append_composite_type_field_raw (struct type *t, char *name,
+append_composite_type_field_raw (struct type *t, const char *name,
struct type *field)
{
struct field *f;
TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1;
- TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t),
- sizeof (struct field) * TYPE_NFIELDS (t));
+ TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t),
+ TYPE_NFIELDS (t));
f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]);
memset (f, 0, sizeof f[0]);
FIELD_TYPE (f[0]) = field;
ALIGNMENT (if non-zero) specifies the minimum field alignment. */
void
-append_composite_type_field_aligned (struct type *t, char *name,
+append_composite_type_field_aligned (struct type *t, const char *name,
struct type *field, int alignment)
{
struct field *f = append_composite_type_field_raw (t, name, field);
/* Add new field with name NAME and type FIELD to composite type T. */
void
-append_composite_type_field (struct type *t, char *name,
+append_composite_type_field (struct type *t, const char *name,
struct type *field)
{
append_composite_type_field_aligned (t, name, field, 0);
const struct builtin_type *
builtin_type (struct gdbarch *gdbarch)
{
- return gdbarch_data (gdbarch, gdbtypes_data);
+ return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data);
}
static void *
/* Basic types. */
builtin_type->builtin_void
- = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void");
+ = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
builtin_type->builtin_char
= arch_integer_type (gdbarch, TARGET_CHAR_BIT,
!gdbarch_char_signed (gdbarch), "char");
+ TYPE_NOSIGN (builtin_type->builtin_char) = 1;
builtin_type->builtin_signed_char
= arch_integer_type (gdbarch, TARGET_CHAR_BIT,
0, "signed char");
= arch_complex_type (gdbarch, "double complex",
builtin_type->builtin_double);
builtin_type->builtin_string
- = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string");
+ = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string");
builtin_type->builtin_bool
- = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool");
+ = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool");
/* The following three are about decimal floating point types, which
are 32-bits, 64-bits and 128-bits respectively. */
builtin_type->builtin_decfloat
- = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32");
+ = arch_decfloat_type (gdbarch, 32, "_Decimal32");
builtin_type->builtin_decdouble
- = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64");
+ = arch_decfloat_type (gdbarch, 64, "_Decimal64");
builtin_type->builtin_declong
- = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128");
+ = arch_decfloat_type (gdbarch, 128, "_Decimal128");
/* "True" character types. */
builtin_type->builtin_true_char
/* Wide character types. */
builtin_type->builtin_char16
- = arch_integer_type (gdbarch, 16, 0, "char16_t");
+ = arch_integer_type (gdbarch, 16, 1, "char16_t");
builtin_type->builtin_char32
- = arch_integer_type (gdbarch, 32, 0, "char32_t");
-
+ = arch_integer_type (gdbarch, 32, 1, "char32_t");
+ builtin_type->builtin_wchar
+ = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch),
+ !gdbarch_wchar_signed (gdbarch), "wchar_t");
/* Default data/code pointer types. */
builtin_type->builtin_data_ptr
{
struct gdbarch *gdbarch;
struct objfile_type *objfile_type
- = objfile_data (objfile, objfile_type_data);
+ = (struct objfile_type *) objfile_data (objfile, objfile_type_data);
if (objfile_type)
return objfile_type;
/* Basic types. */
objfile_type->builtin_void
- = init_type (TYPE_CODE_VOID, 1,
- 0,
- "void", objfile);
-
+ = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
objfile_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", objfile);
+ = init_integer_type (objfile, TARGET_CHAR_BIT,
+ !gdbarch_char_signed (gdbarch), "char");
+ TYPE_NOSIGN (objfile_type->builtin_char) = 1;
objfile_type->builtin_signed_char
- = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- 0,
- "signed char", objfile);
+ = init_integer_type (objfile, TARGET_CHAR_BIT,
+ 0, "signed char");
objfile_type->builtin_unsigned_char
- = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED,
- "unsigned char", objfile);
+ = init_integer_type (objfile, TARGET_CHAR_BIT,
+ 1, "unsigned char");
objfile_type->builtin_short
- = init_type (TYPE_CODE_INT,
- gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "short", objfile);
+ = init_integer_type (objfile, gdbarch_short_bit (gdbarch),
+ 0, "short");
objfile_type->builtin_unsigned_short
- = init_type (TYPE_CODE_INT,
- gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned short", objfile);
+ = init_integer_type (objfile, gdbarch_short_bit (gdbarch),
+ 1, "unsigned short");
objfile_type->builtin_int
- = init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "int", objfile);
+ = init_integer_type (objfile, gdbarch_int_bit (gdbarch),
+ 0, "int");
objfile_type->builtin_unsigned_int
- = init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned int", objfile);
+ = init_integer_type (objfile, gdbarch_int_bit (gdbarch),
+ 1, "unsigned int");
objfile_type->builtin_long
- = init_type (TYPE_CODE_INT,
- gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "long", objfile);
+ = init_integer_type (objfile, gdbarch_long_bit (gdbarch),
+ 0, "long");
objfile_type->builtin_unsigned_long
- = init_type (TYPE_CODE_INT,
- gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
+ = init_integer_type (objfile, gdbarch_long_bit (gdbarch),
+ 1, "unsigned long");
objfile_type->builtin_long_long
- = init_type (TYPE_CODE_INT,
- gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "long long", objfile);
+ = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch),
+ 0, "long long");
objfile_type->builtin_unsigned_long_long
- = init_type (TYPE_CODE_INT,
- gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT,
- TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
-
+ = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch),
+ 1, "unsigned long long");
objfile_type->builtin_float
- = init_type (TYPE_CODE_FLT,
- gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "float", objfile);
- TYPE_FLOATFORMAT (objfile_type->builtin_float)
- = gdbarch_float_format (gdbarch);
+ = init_float_type (objfile, gdbarch_float_bit (gdbarch),
+ "float", gdbarch_float_format (gdbarch));
objfile_type->builtin_double
- = init_type (TYPE_CODE_FLT,
- gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "double", objfile);
- TYPE_FLOATFORMAT (objfile_type->builtin_double)
- = gdbarch_double_format (gdbarch);
+ = init_float_type (objfile, gdbarch_double_bit (gdbarch),
+ "double", gdbarch_double_format (gdbarch));
objfile_type->builtin_long_double
- = init_type (TYPE_CODE_FLT,
- gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT,
- 0, "long double", objfile);
- TYPE_FLOATFORMAT (objfile_type->builtin_long_double)
- = gdbarch_long_double_format (gdbarch);
+ = init_float_type (objfile, gdbarch_long_double_bit (gdbarch),
+ "long double", gdbarch_long_double_format (gdbarch));
/* This type represents a type that was unrecognized in symbol read-in. */
objfile_type->builtin_error
- = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile);
+ = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>");
/* The following set of types is used for symbols with no
debug information. */
objfile_type->nodebug_text_symbol
- = init_type (TYPE_CODE_FUNC, 1, 0,
- "<text variable, no debug info>", objfile);
- TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol)
- = objfile_type->builtin_int;
+ = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT,
+ "<text variable, no debug info>");
objfile_type->nodebug_text_gnu_ifunc_symbol
- = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC,
- "<text gnu-indirect-function variable, no debug info>",
- objfile);
- TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol)
- = objfile_type->nodebug_text_symbol;
+ = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT,
+ "<text gnu-indirect-function variable, no debug info>");
+ TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1;
objfile_type->nodebug_got_plt_symbol
- = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0,
- "<text from jump slot in .got.plt, no debug info>",
- objfile);
- TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol)
- = objfile_type->nodebug_text_symbol;
+ = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch),
+ "<text from jump slot in .got.plt, no debug info>",
+ objfile_type->nodebug_text_symbol);
objfile_type->nodebug_data_symbol
- = init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0,
- "<data variable, no debug info>", objfile);
+ = init_nodebug_var_type (objfile, "<data variable, no debug info>");
objfile_type->nodebug_unknown_symbol
- = init_type (TYPE_CODE_INT, 1, 0,
- "<variable (not text or data), no debug info>", objfile);
+ = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>");
objfile_type->nodebug_tls_symbol
- = init_type (TYPE_CODE_INT,
- gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0,
- "<thread local variable, no debug info>", objfile);
+ = init_nodebug_var_type (objfile, "<thread local variable, no debug info>");
/* NOTE: on some targets, addresses and pointers are not necessarily
the same.
are indeed in the unified virtual address space. */
objfile_type->builtin_core_addr
- = init_type (TYPE_CODE_INT,
- gdbarch_addr_bit (gdbarch) / 8,
- TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile);
+ = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1,
+ "__CORE_ADDR");
set_objfile_data (objfile, objfile_type_data, objfile_type);
return objfile_type;
}
-extern initialize_file_ftype _initialize_gdbtypes;
-
void
_initialize_gdbtypes (void)
{
projects / deliverable / binutils-gdb.git / blobdiff