/* Internal type definitions for GDB.
- Copyright (C) 1992-2014 Free Software Foundation, Inc.
+ Copyright (C) 1992-2019 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
*/
#include "hashtab.h"
+#include "common/array-view.h"
+#include "common/offset-type.h"
+#include "common/enum-flags.h"
+#include "common/underlying.h"
+#include "common/print-utils.h"
+#include "gdbarch.h"
/* Forward declarations for prototypes. */
struct field;
/* * Offset relative to the start of its containing CU (compilation
unit). */
-typedef struct
-{
- unsigned int cu_off;
-} cu_offset;
+DEFINE_OFFSET_TYPE (cu_offset, unsigned int);
/* * Offset relative to the start of its .debug_info or .debug_types
section. */
+DEFINE_OFFSET_TYPE (sect_offset, uint64_t);
-typedef struct
+static inline char *
+sect_offset_str (sect_offset offset)
{
- unsigned int sect_off;
-} sect_offset;
+ return hex_string (to_underlying (offset));
+}
/* Some macros for char-based bitfields. */
TYPE_CODE_RANGE, /**< Range (integers within spec'd bounds). */
/* * A string type which is like an array of character but prints
- differently (at least for (the deleted) CHILL). It does not
- contain a length field as Pascal strings (for many Pascals,
- anyway) do; if we want to deal with such strings, we should use
- a new type code. */
+ differently. It does not contain a length field as Pascal
+ strings (for many Pascals, anyway) do; if we want to deal with
+ such strings, we should use a new type code. */
TYPE_CODE_STRING,
/* * Unknown type. The length field is valid if we were able to
TYPE_CODE_REF, /**< C++ Reference types */
+ TYPE_CODE_RVALUE_REF, /**< C++ rvalue reference types */
+
TYPE_CODE_CHAR, /**< *real* character type */
/* * Boolean type. 0 is false, 1 is true, and other values are
TYPE_CODE_XMETHOD
};
-/* * For now allow source to use TYPE_CODE_CLASS for C++ classes, as
- an alias for TYPE_CODE_STRUCT. This is for DWARF, which has a
- distinct "class" attribute. Perhaps we should actually have a
- separate TYPE_CODE so that we can print "class" or "struct"
- depending on what the debug info said. It's not clear we should
- bother. */
-
-#define TYPE_CODE_CLASS TYPE_CODE_STRUCT
-
-/* * Some constants representing each bit field in the main_type. See
- the bit-field-specific macros, below, for documentation of each
- constant in this enum. These enum values are only used with
- init_type. Note that the values are chosen not to conflict with
- type_instance_flag_value; this lets init_type error-check its
- input. */
-
-enum type_flag_value
-{
- TYPE_FLAG_UNSIGNED = (1 << 8),
- TYPE_FLAG_NOSIGN = (1 << 9),
- TYPE_FLAG_STUB = (1 << 10),
- TYPE_FLAG_TARGET_STUB = (1 << 11),
- TYPE_FLAG_STATIC = (1 << 12),
- TYPE_FLAG_PROTOTYPED = (1 << 13),
- TYPE_FLAG_INCOMPLETE = (1 << 14),
- TYPE_FLAG_VARARGS = (1 << 15),
- TYPE_FLAG_VECTOR = (1 << 16),
- TYPE_FLAG_FIXED_INSTANCE = (1 << 17),
- TYPE_FLAG_STUB_SUPPORTED = (1 << 18),
- TYPE_FLAG_GNU_IFUNC = (1 << 19),
-
- /* * Used for error-checking. */
- TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
-};
-
/* * Some bits for the type's instance_flags word. See the macros
- below for documentation on each bit. Note that if you add a value
- here, you must update the enum type_flag_value as well. */
+ below for documentation on each bit. */
-enum type_instance_flag_value
+enum type_instance_flag_value : unsigned
{
TYPE_INSTANCE_FLAG_CONST = (1 << 0),
TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
- TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7)
+ TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7),
+ TYPE_INSTANCE_FLAG_ATOMIC = (1 << 8)
};
+DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
+
/* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
- the type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
+ the type is signed (unless TYPE_NOSIGN (below) is set). */
#define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
#define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
-/* * Static type. If this is set, the corresponding type had
- a static modifier.
- Note: This may be unnecessary, since static data members
- are indicated by other means (bitpos == -1). */
-
-#define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
-
/* * This is a function type which appears to have a prototype. We
need this for function calls in order to tell us if it's necessary
to coerce the args, or to just do the standard conversions. This
#define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
+/* * True if this type is a discriminated union type. Only valid for
+ TYPE_CODE_UNION. A discriminated union stores a reference to the
+ discriminant field along with the discriminator values in a dynamic
+ property. */
+
+#define TYPE_FLAG_DISCRIMINATED_UNION(t) \
+ (TYPE_MAIN_TYPE (t)->flag_discriminated_union)
+
/* * Constant type. If this is set, the corresponding type has a
const modifier. */
-#define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
+#define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0)
/* * Volatile type. If this is set, the corresponding type has a
volatile modifier. */
#define TYPE_VOLATILE(t) \
- (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
+ ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
/* * Restrict type. If this is set, the corresponding type has a
restrict modifier. */
#define TYPE_RESTRICT(t) \
- (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT)
+ ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
+
+/* * Atomic type. If this is set, the corresponding type has an
+ _Atomic modifier. */
+
+#define TYPE_ATOMIC(t) \
+ ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
+
+/* * True if this type represents either an lvalue or lvalue reference type. */
+
+#define TYPE_IS_REFERENCE(t) \
+ (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
+
+/* * True if this type is allocatable. */
+#define TYPE_IS_ALLOCATABLE(t) \
+ (get_dyn_prop (DYN_PROP_ALLOCATED, t) != NULL)
/* * Instruction-space delimited type. This is for Harvard architectures
which have separate instruction and data address spaces (and perhaps
architecture's two (or more) address spaces, but this is an extension
of the architecture's model.
- If TYPE_FLAG_INST is set, an object of the corresponding type
+ If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
resides in instruction memory, even if its address (in the extended
flat address space) does not reflect this.
- Similarly, if TYPE_FLAG_DATA is set, then an object of the
+ Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
corresponding type resides in the data memory space, even if
this is not indicated by its (flat address space) address.
is instruction space, and for data objects is data memory. */
#define TYPE_CODE_SPACE(t) \
- (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
+ ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
#define TYPE_DATA_SPACE(t) \
- (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
+ ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
/* * Address class flags. Some environments provide for pointers
whose size is different from that of a normal pointer or address
types where the bits are interpreted differently than normal
- addresses. The TYPE_FLAG_ADDRESS_CLASS_n flags may be used in
+ addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
target specific ways to represent these different types of address
classes. */
#define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
& TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
+/* * Information needed for a discriminated union. A discriminated
+ union is handled somewhat differently from an ordinary union.
+
+ One field is designated as the discriminant. Only one other field
+ is active at a time; which one depends on the value of the
+ discriminant and the data in this structure.
+
+ Additionally, it is possible to have a univariant discriminated
+ union. In this case, the union has just a single field, which is
+ assumed to be the only active variant -- in this case no
+ discriminant is provided. */
+
+struct discriminant_info
+{
+ /* * The index of the discriminant field. If -1, then this union
+ must have just a single field. */
+
+ int discriminant_index;
+
+ /* * The index of the default branch of the union. If -1, then
+ there is no default branch. */
+
+ int default_index;
+
+ /* * The discriminant values corresponding to each branch. This has
+ a number of entries equal to the number of fields in this union.
+ If discriminant_index is not -1, then that entry in this array is
+ not used. If default_index is not -1, then that entry in this
+ array is not used. */
+
+ ULONGEST discriminants[1];
+};
+
+enum dynamic_prop_kind
+{
+ PROP_UNDEFINED, /* Not defined. */
+ PROP_CONST, /* Constant. */
+ PROP_ADDR_OFFSET, /* Address offset. */
+ PROP_LOCEXPR, /* Location expression. */
+ PROP_LOCLIST /* Location list. */
+};
+
+union dynamic_prop_data
+{
+ /* Storage for constant property. */
+
+ LONGEST const_val;
+
+ /* Storage for dynamic property. */
+
+ void *baton;
+};
+
/* * Used to store a dynamic property. */
struct dynamic_prop
{
/* Determine which field of the union dynamic_prop.data is used. */
- enum
- {
- PROP_UNDEFINED, /* Not defined. */
- PROP_CONST, /* Constant. */
- PROP_LOCEXPR, /* Location expression. */
- PROP_LOCLIST /* Location list. */
- } kind;
+ enum dynamic_prop_kind kind;
/* Storage for dynamic or static value. */
- union data
- {
- /* Storage for constant property. */
+ union dynamic_prop_data data;
+};
+
+/* Compare two dynamic_prop objects for equality. dynamic_prop
+ instances are equal iff they have the same type and storage. */
+extern bool operator== (const dynamic_prop &l, const dynamic_prop &r);
+
+/* Compare two dynamic_prop objects for inequality. */
+static inline bool operator!= (const dynamic_prop &l, const dynamic_prop &r)
+{
+ return !(l == r);
+}
+
+/* * Define a type's dynamic property node kind. */
+enum dynamic_prop_node_kind
+{
+ /* A property providing a type's data location.
+ Evaluating this field yields to the location of an object's data. */
+ DYN_PROP_DATA_LOCATION,
+
+ /* A property representing DW_AT_allocated. The presence of this attribute
+ indicates that the object of the type can be allocated/deallocated. */
+ DYN_PROP_ALLOCATED,
- LONGEST const_val;
+ /* A property representing DW_AT_allocated. The presence of this attribute
+ indicated that the object of the type can be associated. */
+ DYN_PROP_ASSOCIATED,
- /* Storage for dynamic property. */
+ /* A property providing an array's byte stride. */
+ DYN_PROP_BYTE_STRIDE,
- void *baton;
- } data;
+ /* A property holding information about a discriminated union. */
+ DYN_PROP_DISCRIMINATED,
};
+/* * List for dynamic type attributes. */
+struct dynamic_prop_list
+{
+ /* The kind of dynamic prop in this node. */
+ enum dynamic_prop_node_kind prop_kind;
+
+ /* The dynamic property itself. */
+ struct dynamic_prop prop;
+
+ /* A pointer to the next dynamic property. */
+ struct dynamic_prop_list *next;
+};
/* * Determine which field of the union main_type.fields[x].loc is
used. */
/* * A discriminant to determine which field in the
main_type.type_specific union is being used, if any.
- For types such as TYPE_CODE_FLT or TYPE_CODE_FUNC, the use of this
+ For types such as TYPE_CODE_FLT, the use of this
discriminant is really redundant, as we know from the type code
which field is going to be used. As such, it would be possible to
reduce the size of this enum in order to save a bit or two for
TYPE_SPECIFIC_CPLUS_STUFF,
TYPE_SPECIFIC_GNAT_STUFF,
TYPE_SPECIFIC_FLOATFORMAT,
- TYPE_SPECIFIC_FUNC
+ /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
+ TYPE_SPECIFIC_FUNC,
+ TYPE_SPECIFIC_SELF_TYPE
+};
+
+union type_owner
+{
+ struct objfile *objfile;
+ struct gdbarch *gdbarch;
+};
+
+union field_location
+{
+ /* * Position of this field, counting in bits from start of
+ containing structure. For gdbarch_bits_big_endian=1
+ targets, it is the bit offset to the MSB. For
+ gdbarch_bits_big_endian=0 targets, it is the bit offset to
+ the LSB. */
+
+ LONGEST bitpos;
+
+ /* * Enum value. */
+ LONGEST enumval;
+
+ /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
+ physaddr is the location (in the target) of the static
+ field. Otherwise, physname is the mangled label of the
+ static field. */
+
+ CORE_ADDR physaddr;
+ const char *physname;
+
+ /* * The field location can be computed by evaluating the
+ following DWARF block. Its DATA is allocated on
+ objfile_obstack - no CU load is needed to access it. */
+
+ struct dwarf2_locexpr_baton *dwarf_block;
+};
+
+struct field
+{
+ union field_location loc;
+
+ /* * For a function or member type, this is 1 if the argument is
+ marked artificial. Artificial arguments should not be shown
+ to the user. For TYPE_CODE_RANGE it is set if the specific
+ bound is not defined. */
+
+ unsigned int artificial : 1;
+
+ /* * Discriminant for union field_location. */
+
+ ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
+
+ /* * Size of this field, in bits, or zero if not packed.
+ If non-zero in an array type, indicates the element size in
+ bits (used only in Ada at the moment).
+ For an unpacked field, the field's type's length
+ says how many bytes the field occupies. */
+
+ unsigned int bitsize : 28;
+
+ /* * In a struct or union type, type of this field.
+ - In a function or member type, type of this argument.
+ - In an array type, the domain-type of the array. */
+
+ struct type *type;
+
+ /* * Name of field, value or argument.
+ NULL for range bounds, array domains, and member function
+ arguments. */
+
+ const char *name;
+};
+
+struct range_bounds
+{
+ /* * Low bound of range. */
+
+ struct dynamic_prop low;
+
+ /* * High bound of range. */
+
+ struct dynamic_prop high;
+
+ /* True if HIGH range bound contains the number of elements in the
+ subrange. This affects how the final high bound is computed. */
+
+ int flag_upper_bound_is_count : 1;
+
+ /* True if LOW or/and HIGH are resolved into a static bound from
+ a dynamic one. */
+
+ int flag_bound_evaluated : 1;
+};
+
+/* Compare two range_bounds objects for equality. Simply does
+ memberwise comparison. */
+extern bool operator== (const range_bounds &l, const range_bounds &r);
+
+/* Compare two range_bounds objects for inequality. */
+static inline bool operator!= (const range_bounds &l, const range_bounds &r)
+{
+ return !(l == r);
+}
+
+union type_specific
+{
+ /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
+ point to cplus_struct_default, a default static instance of a
+ struct cplus_struct_type. */
+
+ struct cplus_struct_type *cplus_stuff;
+
+ /* * GNAT_STUFF is for types for which the GNAT Ada compiler
+ provides additional information. */
+
+ struct gnat_aux_type *gnat_stuff;
+
+ /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
+ floatformat object that describes the floating-point value
+ that resides within the type. */
+
+ const struct floatformat *floatformat;
+
+ /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
+
+ struct func_type *func_stuff;
+
+ /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
+ TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
+ is a member of. */
+
+ struct type *self_type;
};
/* * Main structure representing a type in GDB.
unsigned int flag_flag_enum : 1;
+ /* * True if this type is a discriminated union type. Only valid
+ for TYPE_CODE_UNION. A discriminated union stores a reference to
+ the discriminant field along with the discriminator values in a
+ dynamic property. */
+
+ unsigned int flag_discriminated_union : 1;
+
/* * A discriminant telling us which field of the type_specific
union is being used for this type, if any. */
short nfields;
- /* * Field number of the virtual function table pointer in
- VPTR_BASETYPE. If -1, we were unable to find the virtual
- function table pointer in initial symbol reading, and
- get_vptr_fieldno should be called to find it if possible.
- get_vptr_fieldno will update this field if possible. Otherwise
- the value is left at -1.
-
- Unused if this type does not have virtual functions.
-
- This field appears at this location because it packs nicely here. */
-
- short vptr_fieldno;
-
/* * Name of this type, or NULL if none.
- This is used for printing only, except by poorly designed C++
- code. For looking up a name, look for a symbol in the
- VAR_DOMAIN. This is generally allocated in the objfile's
- obstack. However coffread.c uses malloc. */
+ This is used for printing only. For looking up a name, look for
+ a symbol in the VAR_DOMAIN. This is generally allocated in the
+ objfile's obstack. However coffread.c uses malloc. */
const char *name;
- /* * Tag name for this type, or NULL if none. This means that the
- name of the type consists of a keyword followed by the tag name.
- Which keyword is determined by the type code ("struct" for
- TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
- languages with this feature.
-
- This is used for printing only, except by poorly designed C++ code.
- For looking up a name, look for a symbol in the STRUCT_DOMAIN.
- One more legitimate use is that if TYPE_FLAG_STUB is set, this is
- the name to use to look for definitions in other files. */
-
- const char *tag_name;
-
/* * Every type is now associated with a particular objfile, and the
type is allocated on the objfile_obstack for that objfile. One
problem however, is that there are times when gdb allocates new
this is somewhat ugly, but without major overhaul of the internal
type system, it can't be avoided for now. */
- union type_owner
- {
- struct objfile *objfile;
- struct gdbarch *gdbarch;
- } owner;
+ union type_owner owner;
/* * For a pointer type, describes the type of object pointed to.
- For an array type, describes the type of the elements.
union
{
- struct field
- {
- union field_location
- {
- /* * Position of this field, counting in bits from start of
- containing structure. For gdbarch_bits_big_endian=1
- targets, it is the bit offset to the MSB. For
- gdbarch_bits_big_endian=0 targets, it is the bit offset to
- the LSB. */
-
- int bitpos;
-
- /* * Enum value. */
- LONGEST enumval;
-
- /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
- physaddr is the location (in the target) of the static
- field. Otherwise, physname is the mangled label of the
- static field. */
-
- CORE_ADDR physaddr;
- const char *physname;
-
- /* * The field location can be computed by evaluating the
- following DWARF block. Its DATA is allocated on
- objfile_obstack - no CU load is needed to access it. */
-
- struct dwarf2_locexpr_baton *dwarf_block;
- }
- loc;
-
- /* * For a function or member type, this is 1 if the argument is
- marked artificial. Artificial arguments should not be shown
- to the user. For TYPE_CODE_RANGE it is set if the specific
- bound is not defined. */
- unsigned int artificial : 1;
-
- /* * Discriminant for union field_location. */
- ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
-
- /* * Size of this field, in bits, or zero if not packed.
- If non-zero in an array type, indicates the element size in
- bits (used only in Ada at the moment).
- For an unpacked field, the field's type's length
- says how many bytes the field occupies. */
-
- unsigned int bitsize : 28;
-
- /* * In a struct or union type, type of this field.
- - In a function or member type, type of this argument.
- - In an array type, the domain-type of the array. */
-
- struct type *type;
-
- /* * Name of field, value or argument.
- NULL for range bounds, array domains, and member function
- arguments. */
-
- const char *name;
- } *fields;
+ struct field *fields;
/* * Union member used for range types. */
- struct range_bounds
- {
- /* * Low bound of range. */
-
- struct dynamic_prop low;
-
- /* * High bound of range. */
-
- struct dynamic_prop high;
-
- /* True if HIGH range bound contains the number of elements in the
- subrange. This affects how the final hight bound is computed. */
-
- int flag_upper_bound_is_count : 1;
-
- /* True if LOW or/and HIGH are resolved into a static bound from
- a dynamic one. */
-
- int flag_bound_evaluated : 1;
- } *bounds;
+ struct range_bounds *bounds;
} flds_bnds;
- /* * For types with virtual functions (TYPE_CODE_STRUCT),
- VPTR_BASETYPE is the base class which defined the virtual
- function table pointer.
-
- For types that are pointer to member types (TYPE_CODE_METHODPTR,
- TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
- is a member of.
-
- For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
- type that contains the method.
-
- Unused otherwise. */
-
- struct type *vptr_basetype;
-
/* * Slot to point to additional language-specific fields of this
type. */
- union type_specific
- {
- /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
- point to cplus_struct_default, a default static instance of a
- struct cplus_struct_type. */
+ union type_specific type_specific;
- struct cplus_struct_type *cplus_stuff;
-
- /* * GNAT_STUFF is for types for which the GNAT Ada compiler
- provides additional information. */
-
- struct gnat_aux_type *gnat_stuff;
-
- /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
- floatformat objects that describe the floating-point value
- that resides within the type. The first is for big endian
- targets and the second is for little endian targets. */
-
- const struct floatformat **floatformat;
+ /* * Contains all dynamic type properties. */
+ struct dynamic_prop_list *dyn_prop_list;
+};
- /* * For TYPE_CODE_FUNC types, */
+/* * Number of bits allocated for alignment. */
- struct func_type *func_stuff;
- } type_specific;
-};
+#define TYPE_ALIGN_BITS 8
/* * A ``struct type'' describes a particular instance of a type, with
some particular qualification. */
struct type *reference_type;
+ /* * A C++ rvalue reference type added in C++11. */
+
+ struct type *rvalue_reference_type;
+
/* * Variant chain. This points to a type that differs from this
one only in qualifiers and length. Currently, the possible
qualifiers are const, volatile, code-space, data-space, and
struct type *chain;
+ /* * The alignment for this type. Zero means that the alignment was
+ not specified in the debug info. Note that this is stored in a
+ funny way: as the log base 2 (plus 1) of the alignment; so a
+ value of 1 means the alignment is 1, and a value of 9 means the
+ alignment is 256. */
+
+ unsigned align_log2 : TYPE_ALIGN_BITS;
+
/* * Flags specific to this instance of the type, indicating where
on the ring we are.
instance flags are completely inherited from the target type. No
qualifiers can be cleared by the typedef. See also
check_typedef. */
- int instance_flags;
-
- /* * Length of storage for a value of this type. This is what
- sizeof(type) would return; use it for address arithmetic, memory
- reads and writes, etc. This size includes padding. For example,
- an i386 extended-precision floating point value really only
- occupies ten bytes, but most ABI's declare its size to be 12
- bytes, to preserve alignment. A `struct type' representing such
- a floating-point type would have a `length' value of 12, even
- though the last two bytes are unused.
-
- There's a bit of a host/target mess here, if you're concerned
- about machines whose bytes aren't eight bits long, or who don't
- have byte-addressed memory. Various places pass this to memcpy
- and such, meaning it must be in units of host bytes. Various
- other places expect they can calculate addresses by adding it
- and such, meaning it must be in units of target bytes. For
- some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
- and TARGET_CHAR_BIT will be (say) 32, this is a problem.
-
- One fix would be to make this field in bits (requiring that it
- always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
- the other choice would be to make it consistently in units of
- HOST_CHAR_BIT. However, this would still fail to address
- machines based on a ternary or decimal representation. */
-
- unsigned length;
+ unsigned instance_flags : 9;
+
+ /* * Length of storage for a value of this type. The value is the
+ expression in host bytes of what sizeof(type) would return. This
+ size includes padding. For example, an i386 extended-precision
+ floating point value really only occupies ten bytes, but most
+ ABI's declare its size to be 12 bytes, to preserve alignment.
+ A `struct type' representing such a floating-point type would
+ have a `length' value of 12, even though the last two bytes are
+ unused.
+
+ Since this field is expressed in host bytes, its value is appropriate
+ to pass to memcpy and such (it is assumed that GDB itself always runs
+ on an 8-bits addressable architecture). However, when using it for
+ target address arithmetic (e.g. adding it to a target address), the
+ type_length_units function should be used in order to get the length
+ expressed in target addressable memory units. */
+
+ ULONGEST length;
/* * Core type, shared by a group of qualified types. */
#define NULL_TYPE ((struct type *) 0)
+struct fn_fieldlist
+{
+
+ /* * The overloaded name.
+ This is generally allocated in the objfile's obstack.
+ However stabsread.c sometimes uses malloc. */
+
+ const char *name;
+
+ /* * The number of methods with this name. */
+
+ int length;
+
+ /* * The list of methods. */
+
+ struct fn_field *fn_fields;
+};
+
+
+
+struct fn_field
+{
+ /* * If is_stub is clear, this is the mangled name which we can look
+ up to find the address of the method (FIXME: it would be cleaner
+ to have a pointer to the struct symbol here instead).
+
+ If is_stub is set, this is the portion of the mangled name which
+ specifies the arguments. For example, "ii", if there are two int
+ arguments, or "" if there are no arguments. See gdb_mangle_name
+ for the conversion from this format to the one used if is_stub is
+ clear. */
+
+ const char *physname;
+
+ /* * The function type for the method.
+
+ (This comment used to say "The return value of the method", but
+ that's wrong. The function type is expected here, i.e. something
+ with TYPE_CODE_METHOD, and *not* the return-value type). */
+
+ struct type *type;
+
+ /* * For virtual functions. First baseclass that defines this
+ virtual function. */
+
+ struct type *fcontext;
+
+ /* Attributes. */
+
+ unsigned int is_const:1;
+ unsigned int is_volatile:1;
+ unsigned int is_private:1;
+ unsigned int is_protected:1;
+ unsigned int is_artificial:1;
+
+ /* * A stub method only has some fields valid (but they are enough
+ to reconstruct the rest of the fields). */
+
+ unsigned int is_stub:1;
+
+ /* * True if this function is a constructor, false otherwise. */
+
+ unsigned int is_constructor : 1;
+
+ /* * Unused. */
+
+ unsigned int dummy:9;
+
+ /* * Index into that baseclass's virtual function table, minus 2;
+ else if static: VOFFSET_STATIC; else: 0. */
+
+ unsigned int voffset:16;
+
+#define VOFFSET_STATIC 1
+
+};
+
+struct decl_field
+{
+ /* * Unqualified name to be prefixed by owning class qualified
+ name. */
+
+ const char *name;
+
+ /* * Type this typedef named NAME represents. */
+
+ struct type *type;
+
+ /* * True if this field was declared protected, false otherwise. */
+ unsigned int is_protected : 1;
+
+ /* * True if this field was declared private, false otherwise. */
+ unsigned int is_private : 1;
+};
+
/* * C++ language-specific information for TYPE_CODE_STRUCT and
TYPE_CODE_UNION nodes. */
{
/* * Number of base classes this type derives from. The
baseclasses are stored in the first N_BASECLASSES fields
- (i.e. the `fields' field of the struct type). I think only the
- `type' field of such a field has any meaning. */
+ (i.e. the `fields' field of the struct type). The only fields
+ of struct field that are used are: type, name, loc.bitpos. */
short n_baseclasses;
+ /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
+ All access to this field must be through TYPE_VPTR_FIELDNO as one
+ thing it does is check whether the field has been initialized.
+ Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
+ which for portability reasons doesn't initialize this field.
+ TYPE_VPTR_FIELDNO returns -1 for this case.
+
+ If -1, we were unable to find the virtual function table pointer in
+ initial symbol reading, and get_vptr_fieldno should be called to find
+ it if possible. get_vptr_fieldno will update this field if possible.
+ Otherwise the value is left at -1.
+
+ Unused if this type does not have virtual functions. */
+
+ short vptr_fieldno;
+
/* * Number of methods with unique names. All overloaded methods
with the same name count only once. */
int is_dynamic : 2;
- /* * Non-zero if this type came from a Java CU. */
+ /* * The base class which defined the virtual function table pointer. */
- unsigned int is_java : 1;
+ struct type *vptr_basetype;
/* * For derived classes, the number of base classes is given by
n_baseclasses and virtual_field_bits is a bit vector containing
fn_fieldlists points to an array of nfn_fields of these. */
- struct fn_fieldlist
- {
-
- /* * The overloaded name.
- This is generally allocated in the objfile's obstack.
- However stabsread.c sometimes uses malloc. */
-
- const char *name;
-
- /* * The number of methods with this name. */
-
- int length;
-
- /* * The list of methods. */
-
- struct fn_field
- {
-
- /* * If is_stub is clear, this is the mangled name which
- we can look up to find the address of the method
- (FIXME: it would be cleaner to have a pointer to the
- struct symbol here instead).
-
- If is_stub is set, this is the portion of the mangled
- name which specifies the arguments. For example, "ii",
- if there are two int arguments, or "" if there are no
- arguments. See gdb_mangle_name for the conversion from
- this format to the one used if is_stub is clear. */
-
- const char *physname;
-
- /* * The function type for the method.
-
- (This comment used to say "The return value of the
- method", but that's wrong. The function type is
- expected here, i.e. something with TYPE_CODE_FUNC, and
- *not* the return-value type). */
-
- struct type *type;
-
- /* * For virtual functions.
- First baseclass that defines this virtual function. */
-
- struct type *fcontext;
-
- /* Attributes. */
-
- unsigned int is_const:1;
- unsigned int is_volatile:1;
- unsigned int is_private:1;
- unsigned int is_protected:1;
- unsigned int is_public:1;
- unsigned int is_abstract:1;
- unsigned int is_static:1;
- unsigned int is_final:1;
- unsigned int is_synchronized:1;
- unsigned int is_native:1;
- unsigned int is_artificial:1;
-
- /* * A stub method only has some fields valid (but they
- are enough to reconstruct the rest of the fields). */
-
- unsigned int is_stub:1;
-
- /* * True if this function is a constructor, false
- otherwise. */
-
- unsigned int is_constructor : 1;
-
- /* * Unused. */
-
- unsigned int dummy:3;
-
- /* * Index into that baseclass's virtual function table,
- minus 2; else if static: VOFFSET_STATIC; else: 0. */
-
- unsigned int voffset:16;
-
-#define VOFFSET_STATIC 1
-
- }
- *fn_fields;
-
- }
- *fn_fieldlists;
+ struct fn_fieldlist *fn_fieldlists;
/* * typedefs defined inside this class. typedef_field points to
an array of typedef_field_count elements. */
- struct typedef_field
- {
- /* * Unqualified name to be prefixed by owning class qualified
- name. */
+ struct decl_field *typedef_field;
- const char *name;
+ unsigned typedef_field_count;
- /* * Type this typedef named NAME represents. */
+ /* * The nested types defined by this type. nested_types points to
+ an array of nested_types_count elements. */
- struct type *type;
- }
- *typedef_field;
- unsigned typedef_field_count;
+ struct decl_field *nested_types;
+
+ unsigned nested_types_count;
/* * The template arguments. This is an array with
N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
short subrank;
};
-/* * Struct used for ranking a function for overload resolution. */
+/* * Used for ranking a function for overload resolution. */
-struct badness_vector
- {
- int length;
- struct rank *rank;
- };
+typedef std::vector<rank> badness_vector;
/* * GNAT Ada-specific information for various Ada types. */
struct type* descriptive_type;
};
-/* * For TYPE_CODE_FUNC types. */
+/* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
struct func_type
{
/* * The calling convention for targets supporting multiple ABIs.
Right now this is only fetched from the Dwarf-2
- DW_AT_calling_convention attribute. */
+ DW_AT_calling_convention attribute. The value is one of the
+ DW_CC enum dwarf_calling_convention constants. */
+
+ unsigned calling_convention : 8;
- unsigned calling_convention;
+ /* * Whether this function normally returns to its caller. It is
+ set from the DW_AT_noreturn attribute if set on the
+ DW_TAG_subprogram. */
- /* * Only those DW_TAG_GNU_call_site's in this function that have
- DW_AT_GNU_tail_call set are linked in this list. Function
+ unsigned int is_noreturn : 1;
+
+ /* * Only those DW_TAG_call_site's in this function that have
+ DW_AT_call_tail_call set are linked in this list. Function
without its tail call list complete
- (DW_AT_GNU_all_tail_call_sites or its superset
- DW_AT_GNU_all_call_sites) has TAIL_CALL_LIST NULL, even if some
- DW_TAG_GNU_call_site's exist in such function. */
+ (DW_AT_call_all_tail_calls or its superset
+ DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
+ DW_TAG_call_site's exist in such function. */
struct call_site *tail_call_list;
+
+ /* * For method types (TYPE_CODE_METHOD), the aggregate type that
+ contains the method. */
+
+ struct type *self_type;
};
/* struct call_site_parameter can be referenced in callees by several ways. */
CALL_SITE_PARAMETER_PARAM_OFFSET
};
+struct call_site_target
+{
+ union field_location loc;
+
+ /* * Discriminant for union field_location. */
+
+ ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
+};
+
+union call_site_parameter_u
+{
+ /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
+ as DWARF register number, for register passed
+ parameters. */
+
+ int dwarf_reg;
+
+ /* * Offset from the callee's frame base, for stack passed
+ parameters. This equals offset from the caller's stack
+ pointer. */
+
+ CORE_ADDR fb_offset;
+
+ /* * Offset relative to the start of this PER_CU to
+ DW_TAG_formal_parameter which is referenced by both
+ caller and the callee. */
+
+ cu_offset param_cu_off;
+};
+
+struct call_site_parameter
+{
+ ENUM_BITFIELD (call_site_parameter_kind) kind : 2;
+
+ union call_site_parameter_u u;
+
+ /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
+
+ const gdb_byte *value;
+ size_t value_size;
+
+ /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
+ It may be NULL if not provided by DWARF. */
+
+ const gdb_byte *data_value;
+ size_t data_value_size;
+};
+
/* * A place where a function gets called from, represented by
- DW_TAG_GNU_call_site. It can be looked up from
- symtab->call_site_htab. */
+ DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
struct call_site
{
struct call_site *tail_call_next;
- /* * Describe DW_AT_GNU_call_site_target. Missing attribute uses
+ /* * Describe DW_AT_call_target. Missing attribute uses
FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
- struct
- {
- union field_location loc;
-
- /* * Discriminant for union field_location. */
-
- ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
- }
- target;
+ struct call_site_target target;
/* * Size of the PARAMETER array. */
struct dwarf2_per_cu_data *per_cu;
- /* * Describe DW_TAG_GNU_call_site's DW_TAG_formal_parameter. */
+ /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
- struct call_site_parameter
- {
- ENUM_BITFIELD (call_site_parameter_kind) kind : 2;
-
- union call_site_parameter_u
- {
- /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
- as DWARF register number, for register passed
- parameters. */
-
- int dwarf_reg;
-
- /* * Offset from the callee's frame base, for stack passed
- parameters. This equals offset from the caller's stack
- pointer. */
-
- CORE_ADDR fb_offset;
-
- /* * Offset relative to the start of this PER_CU to
- DW_TAG_formal_parameter which is referenced by both
- caller and the callee. */
-
- cu_offset param_offset;
- }
- u;
-
- /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_value. It
- is never NULL. */
-
- const gdb_byte *value;
- size_t value_size;
-
- /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_data_value.
- It may be NULL if not provided by DWARF. */
-
- const gdb_byte *data_value;
- size_t data_value_size;
- }
- parameter[1];
+ struct call_site_parameter parameter[1];
};
/* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
(TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
&& TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
+#define INIT_NONE_SPECIFIC(type) \
+ (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_NONE, \
+ TYPE_MAIN_TYPE (type)->type_specific = {})
+
extern const struct gnat_aux_type gnat_aux_default;
extern void allocate_gnat_aux_type (struct type *);
#define HAVE_GNAT_AUX_INFO(type) \
(TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
+/* * True if TYPE is known to be an Ada type of some kind. */
+#define ADA_TYPE_P(type) \
+ (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF \
+ || (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE \
+ && TYPE_FIXED_INSTANCE (type)))
+
#define INIT_FUNC_SPECIFIC(type) \
(TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
- TYPE_MAIN_TYPE (type)->type_specific.func_stuff \
- = TYPE_ZALLOC (type, \
- sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
+ TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
+ TYPE_ZALLOC (type, \
+ sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
#define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
#define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
#define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
-#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
#define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
+#define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
#define TYPE_CHAIN(thistype) (thistype)->chain
/* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
so you only have to call check_typedef once. Since allocate_value
calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
#define TYPE_LENGTH(thistype) (thistype)->length
+
+/* * Return the alignment of the type in target addressable memory
+ units, or 0 if no alignment was specified. */
+#define TYPE_RAW_ALIGN(thistype) type_raw_align (thistype)
+
+/* * Return the alignment of the type in target addressable memory
+ units, or 0 if no alignment was specified. */
+extern unsigned type_raw_align (struct type *);
+
+/* * Return the alignment of the type in target addressable memory
+ units. Return 0 if the alignment cannot be determined; but note
+ that this makes an effort to compute the alignment even it it was
+ not specified in the debug info. */
+extern unsigned type_align (struct type *);
+
+/* * Set the alignment of the type. The alignment must be a power of
+ 2. Returns false if the given value does not fit in the available
+ space in struct type. */
+extern bool set_type_align (struct type *, ULONGEST);
+
/* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
type, you need to do TYPE_CODE (check_type (this_type)). */
#define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
#define TYPE_LOW_BOUND_KIND(range_type) \
TYPE_RANGE_DATA(range_type)->low.kind
-/* Moto-specific stuff for FORTRAN arrays. */
+/* Property accessors for the type data location. */
+#define TYPE_DATA_LOCATION(thistype) \
+ get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
+#define TYPE_DATA_LOCATION_BATON(thistype) \
+ TYPE_DATA_LOCATION (thistype)->data.baton
+#define TYPE_DATA_LOCATION_ADDR(thistype) \
+ TYPE_DATA_LOCATION (thistype)->data.const_val
+#define TYPE_DATA_LOCATION_KIND(thistype) \
+ TYPE_DATA_LOCATION (thistype)->kind
+
+/* Property accessors for the type allocated/associated. */
+#define TYPE_ALLOCATED_PROP(thistype) \
+ get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
+#define TYPE_ASSOCIATED_PROP(thistype) \
+ get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
+
+/* Attribute accessors for dynamic properties. */
+#define TYPE_DYN_PROP_LIST(thistype) \
+ TYPE_MAIN_TYPE(thistype)->dyn_prop_list
+#define TYPE_DYN_PROP_BATON(dynprop) \
+ dynprop->data.baton
+#define TYPE_DYN_PROP_ADDR(dynprop) \
+ dynprop->data.const_val
+#define TYPE_DYN_PROP_KIND(dynprop) \
+ dynprop->kind
+
+
+/* Accessors for struct range_bounds data attached to an array type's
+ index type. */
#define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
/* C++ */
-#define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
-#define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
-#define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
+#define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
+/* Do not call this, use TYPE_SELF_TYPE. */
+extern struct type *internal_type_self_type (struct type *);
+extern void set_type_self_type (struct type *, struct type *);
+
+extern int internal_type_vptr_fieldno (struct type *);
+extern void set_type_vptr_fieldno (struct type *, int);
+extern struct type *internal_type_vptr_basetype (struct type *);
+extern void set_type_vptr_basetype (struct type *, struct type *);
+#define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
+#define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
+
#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
#define TYPE_SPECIFIC_FIELD(thistype) \
TYPE_MAIN_TYPE(thistype)->type_specific_field
-#define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
/* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
where we're trying to print an Ada array using the C language.
In that case, there is no "cplus_stuff", but the C language assumes
#define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
#define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
#define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
+#define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
#define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
#define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
#define BASETYPE_VIA_PUBLIC(thistype, index) \
((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
#define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
-#define TYPE_CPLUS_REALLY_JAVA(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_java
#define BASETYPE_VIA_VIRTUAL(thistype, index) \
(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
#define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
-#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
-#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
-#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
-#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
-#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
-#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
#define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
#define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
#define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
#define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
+/* Accessors for typedefs defined by a class. */
#define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
#define TYPE_TYPEDEF_FIELD(thistype, n) \
TYPE_TYPEDEF_FIELD (thistype, n).type
#define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
+#define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
+ TYPE_TYPEDEF_FIELD (thistype, n).is_protected
+#define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
+ TYPE_TYPEDEF_FIELD (thistype, n).is_private
+
+#define TYPE_NESTED_TYPES_ARRAY(thistype) \
+ TYPE_CPLUS_SPECIFIC (thistype)->nested_types
+#define TYPE_NESTED_TYPES_FIELD(thistype, n) \
+ TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
+#define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
+ TYPE_NESTED_TYPES_FIELD (thistype, n).name
+#define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
+ TYPE_NESTED_TYPES_FIELD (thistype, n).type
+#define TYPE_NESTED_TYPES_COUNT(thistype) \
+ TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
+#define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
+ TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
+#define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
+ TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
#define TYPE_IS_OPAQUE(thistype) \
(((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
#define TYPE_ERROR_NAME(type) \
(TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
+/* Given TYPE, return its floatformat. */
+const struct floatformat *floatformat_from_type (const struct type *type);
+
struct builtin_type
{
/* Integral types. */
struct type *builtin_unsigned_short;
struct type *builtin_unsigned_int;
struct type *builtin_unsigned_long;
+ struct type *builtin_half;
struct type *builtin_float;
struct type *builtin_double;
struct type *builtin_long_double;
struct type *builtin_uint8;
struct type *builtin_int16;
struct type *builtin_uint16;
+ struct type *builtin_int24;
+ struct type *builtin_uint24;
struct type *builtin_int32;
struct type *builtin_uint32;
struct type *builtin_int64;
/* Wide character types. */
struct type *builtin_char16;
struct type *builtin_char32;
+ struct type *builtin_wchar;
/* Pointer types. */
struct type *builtin_unsigned_int;
struct type *builtin_unsigned_long;
struct type *builtin_unsigned_long_long;
+ struct type *builtin_half;
struct type *builtin_float;
struct type *builtin_double;
struct type *builtin_long_double;
extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
-/* * Allocate space for storing data associated with a particular
+/* Allocate space for storing data associated with a particular
type. We ensure that the space is allocated using the same
mechanism that was used to allocate the space for the type
structure itself. I.e. if the type is on an objfile's
objfile_obstack, then the space for data associated with that type
- will also be allocated on the objfile_obstack. If the type is not
- associated with any particular objfile (such as builtin types),
- then the data space will be allocated with xmalloc, the same as for
- the type structure. */
-
-#define TYPE_ALLOC(t,size) \
- (TYPE_OBJFILE_OWNED (t) \
- ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
- : xmalloc (size))
-
-#define TYPE_ZALLOC(t,size) \
- (TYPE_OBJFILE_OWNED (t) \
- ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
- 0, size) \
- : xzalloc (size))
+ will also be allocated on the objfile_obstack. If the type is
+ associated with a gdbarch, then the space for data associated with that
+ type will also be allocated on the gdbarch_obstack.
+
+ If a type is not associated with neither an objfile or a gdbarch then
+ you should not use this macro to allocate space for data, instead you
+ should call xmalloc directly, and ensure the memory is correctly freed
+ when it is no longer needed. */
+
+#define TYPE_ALLOC(t,size) \
+ (obstack_alloc ((TYPE_OBJFILE_OWNED (t) \
+ ? &TYPE_OBJFILE (t)->objfile_obstack \
+ : gdbarch_obstack (TYPE_OWNER (t).gdbarch)), \
+ size))
+
+
+/* See comment on TYPE_ALLOC. */
+
+#define TYPE_ZALLOC(t,size) (memset (TYPE_ALLOC (t, size), 0, size))
/* Use alloc_type to allocate a type owned by an objfile. Use
alloc_type_arch to allocate a type owned by an architecture. Use
extern struct type *get_target_type (struct type *type);
+/* Return the equivalent of TYPE_LENGTH, but in number of target
+ addressable memory units of the associated gdbarch instead of bytes. */
+
+extern unsigned int type_length_units (struct type *type);
+
/* * Helper function to construct objfile-owned types. */
-extern struct type *init_type (enum type_code, int, int, const char *,
- struct objfile *);
+extern struct type *init_type (struct objfile *, enum type_code, int,
+ const char *);
+extern struct type *init_integer_type (struct objfile *, int, int,
+ const char *);
+extern struct type *init_character_type (struct objfile *, int, int,
+ const char *);
+extern struct type *init_boolean_type (struct objfile *, int, int,
+ const char *);
+extern struct type *init_float_type (struct objfile *, int, const char *,
+ const struct floatformat **);
+extern struct type *init_decfloat_type (struct objfile *, int, const char *);
+extern struct type *init_complex_type (struct objfile *, const char *,
+ struct type *);
+extern struct type *init_pointer_type (struct objfile *, int, const char *,
+ struct type *);
/* Helper functions to construct architecture-owned types. */
-extern struct type *arch_type (struct gdbarch *, enum type_code, int, char *);
-extern struct type *arch_integer_type (struct gdbarch *, int, int, char *);
-extern struct type *arch_character_type (struct gdbarch *, int, int, char *);
-extern struct type *arch_boolean_type (struct gdbarch *, int, int, char *);
-extern struct type *arch_float_type (struct gdbarch *, int, char *,
+extern struct type *arch_type (struct gdbarch *, enum type_code, int,
+ const char *);
+extern struct type *arch_integer_type (struct gdbarch *, int, int,
+ const char *);
+extern struct type *arch_character_type (struct gdbarch *, int, int,
+ const char *);
+extern struct type *arch_boolean_type (struct gdbarch *, int, int,
+ const char *);
+extern struct type *arch_float_type (struct gdbarch *, int, const char *,
const struct floatformat **);
-extern struct type *arch_complex_type (struct gdbarch *, char *,
+extern struct type *arch_decfloat_type (struct gdbarch *, int, const char *);
+extern struct type *arch_complex_type (struct gdbarch *, const char *,
+ struct type *);
+extern struct type *arch_pointer_type (struct gdbarch *, int, const char *,
struct type *);
/* Helper functions to construct a struct or record type. An
field packed against the previous. */
extern struct type *arch_composite_type (struct gdbarch *gdbarch,
- char *name, enum type_code code);
-extern void append_composite_type_field (struct type *t, char *name,
+ const char *name, enum type_code code);
+extern void append_composite_type_field (struct type *t, const char *name,
struct type *field);
extern void append_composite_type_field_aligned (struct type *t,
- char *name,
+ const char *name,
struct type *field,
int alignment);
-struct field *append_composite_type_field_raw (struct type *t, char *name,
+struct field *append_composite_type_field_raw (struct type *t, const char *name,
struct type *field);
/* Helper functions to construct a bit flags type. An initially empty
type is created using arch_flag_type(). Flags are then added using
- append_flag_type_flag(). */
+ append_flag_type_field() and append_flag_type_flag(). */
extern struct type *arch_flags_type (struct gdbarch *gdbarch,
- char *name, int length);
-extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
+ const char *name, int bit);
+extern void append_flags_type_field (struct type *type,
+ int start_bitpos, int nr_bits,
+ struct type *field_type, const char *name);
+extern void append_flags_type_flag (struct type *type, int bitpos,
+ const char *name);
extern void make_vector_type (struct type *array_type);
extern struct type *init_vector_type (struct type *elt_type, int n);
-extern struct type *lookup_reference_type (struct type *);
+extern struct type *lookup_reference_type (struct type *, enum type_code);
+extern struct type *lookup_lvalue_reference_type (struct type *);
+extern struct type *lookup_rvalue_reference_type (struct type *);
+
-extern struct type *make_reference_type (struct type *, struct type **);
+extern struct type *make_reference_type (struct type *, struct type **,
+ enum type_code);
extern struct type *make_cv_type (int, int, struct type *, struct type **);
extern struct type *make_restrict_type (struct type *);
+extern struct type *make_unqualified_type (struct type *);
+
+extern struct type *make_atomic_type (struct type *);
+
extern void replace_type (struct type *, struct type *);
-extern int address_space_name_to_int (struct gdbarch *, char *);
+extern int address_space_name_to_int (struct gdbarch *, const char *);
extern const char *address_space_int_to_name (struct gdbarch *, int);
extern struct type *lookup_methodptr_type (struct type *);
-extern void smash_to_method_type (struct type *type, struct type *domain,
+extern void smash_to_method_type (struct type *type, struct type *self_type,
struct type *to_type, struct field *args,
int nargs, int varargs);
extern struct type *allocate_stub_method (struct type *);
-extern const char *type_name_no_tag (const struct type *);
+extern const char *type_name_or_error (struct type *type);
+
+struct struct_elt
+{
+ /* The field of the element, or NULL if no element was found. */
+ struct field *field;
+
+ /* The bit offset of the element in the parent structure. */
+ LONGEST offset;
+};
+
+/* Given a type TYPE, lookup the field and offset of the component named
+ NAME.
-extern const char *type_name_no_tag_or_error (struct type *type);
+ TYPE can be either a struct or union, or a pointer or reference to
+ a struct or union. If it is a pointer or reference, its target
+ type is automatically used. Thus '.' and '->' are interchangable,
+ as specified for the definitions of the expression element types
+ STRUCTOP_STRUCT and STRUCTOP_PTR.
+
+ If NOERR is nonzero, the returned structure will have field set to
+ NULL if there is no component named NAME.
+
+ If the component NAME is a field in an anonymous substructure of
+ TYPE, the returned offset is a "global" offset relative to TYPE
+ rather than an offset within the substructure. */
+
+extern struct_elt lookup_struct_elt (struct type *, const char *, int);
+
+/* Given a type TYPE, lookup the type of the component named NAME.
+
+ TYPE can be either a struct or union, or a pointer or reference to
+ a struct or union. If it is a pointer or reference, its target
+ type is automatically used. Thus '.' and '->' are interchangable,
+ as specified for the definitions of the expression element types
+ STRUCTOP_STRUCT and STRUCTOP_PTR.
+
+ If NOERR is nonzero, return NULL if there is no component named
+ NAME. */
extern struct type *lookup_struct_elt_type (struct type *, const char *, int);
extern struct type *create_array_type_with_stride
- (struct type *, struct type *, struct type *, unsigned int);
+ (struct type *, struct type *, struct type *,
+ struct dynamic_prop *, unsigned int);
extern struct type *create_range_type (struct type *, struct type *,
const struct dynamic_prop *,
ADDR specifies the location of the variable the type is bound to.
If TYPE has no dynamic properties return TYPE; otherwise a new type with
static properties is returned. */
-extern struct type *resolve_dynamic_type (struct type *type, CORE_ADDR addr);
+extern struct type *resolve_dynamic_type (struct type *type,
+ const gdb_byte *valaddr,
+ CORE_ADDR addr);
/* * Predicate if the type has dynamic values, which are not resolved yet. */
extern int is_dynamic_type (struct type *type);
-extern struct type *check_typedef (struct type *);
+/* * Return the dynamic property of the requested KIND from TYPE's
+ list of dynamic properties. */
+extern struct dynamic_prop *get_dyn_prop
+ (enum dynamic_prop_node_kind kind, const struct type *type);
+
+/* * Given a dynamic property PROP of a given KIND, add this dynamic
+ property to the given TYPE.
-#define CHECK_TYPEDEF(TYPE) \
- do { \
- (TYPE) = check_typedef (TYPE); \
- } while (0)
+ This function assumes that TYPE is objfile-owned. */
+extern void add_dyn_prop
+ (enum dynamic_prop_node_kind kind, struct dynamic_prop prop,
+ struct type *type);
+
+extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind,
+ struct type *type);
+
+extern struct type *check_typedef (struct type *);
extern void check_stub_method_group (struct type *, int);
struct gdbarch *, const char *,
const struct block *, int);
-extern struct type *lookup_template_type (char *, struct type *,
+extern struct type *lookup_template_type (const char *, struct type *,
const struct block *);
extern int get_vptr_fieldno (struct type *, struct type **);
extern int get_array_bounds (struct type *type, LONGEST *low_bound,
LONGEST *high_bound);
+extern int discrete_position (struct type *type, LONGEST val, LONGEST *pos);
+
extern int class_types_same_p (const struct type *, const struct type *);
extern int is_ancestor (struct type *, struct type *);
/* Overload resolution */
-#define LENGTH_MATCH(bv) ((bv)->rank[0])
-
/* * Badness if parameter list length doesn't match arg list length. */
extern const struct rank LENGTH_MISMATCH_BADNESS;
extern const struct rank BOOL_CONVERSION_BADNESS;
/* * Badness of converting derived to base class. */
extern const struct rank BASE_CONVERSION_BADNESS;
-/* * Badness of converting from non-reference to reference. */
+/* * Badness of converting from non-reference to reference. Subrank
+ is the type of reference conversion being done. */
extern const struct rank REFERENCE_CONVERSION_BADNESS;
+/* * Conversion to rvalue reference. */
+#define REFERENCE_CONVERSION_RVALUE 1
+/* * Conversion to const lvalue reference. */
+#define REFERENCE_CONVERSION_CONST_LVALUE 2
+
/* * Badness of converting integer 0 to NULL pointer. */
extern const struct rank NULL_POINTER_CONVERSION;
+/* * Badness of cv-conversion. Subrank is a flag describing the conversions
+ being done. */
+extern const struct rank CV_CONVERSION_BADNESS;
+#define CV_CONVERSION_CONST 1
+#define CV_CONVERSION_VOLATILE 2
/* Non-standard conversions allowed by the debugger */
extern struct rank sum_ranks (struct rank a, struct rank b);
extern int compare_ranks (struct rank a, struct rank b);
-extern int compare_badness (struct badness_vector *, struct badness_vector *);
+extern int compare_badness (const badness_vector &,
+ const badness_vector &);
-extern struct badness_vector *rank_function (struct type **, int,
- struct value **, int);
+extern badness_vector rank_function (gdb::array_view<type *> parms,
+ gdb::array_view<value *> args);
extern struct rank rank_one_type (struct type *, struct type *,
struct value *);
/* printcmd.c */
-extern void print_scalar_formatted (const void *, struct type *,
+extern void print_scalar_formatted (const gdb_byte *, struct type *,
const struct value_print_options *,
int, struct ui_file *);
extern int is_integral_type (struct type *);
+extern int is_floating_type (struct type *);
+
+extern int is_scalar_type (struct type *type);
+
extern int is_scalar_type_recursive (struct type *);
-extern void maintenance_print_type (char *, int);
+extern int class_or_union_p (const struct type *);
+
+extern void maintenance_print_type (const char *, int);
extern htab_t create_copied_types_hash (struct objfile *objfile);
extern struct type *copy_type (const struct type *type);
-extern int types_equal (struct type *, struct type *);
+extern bool types_equal (struct type *, struct type *);
+
+extern bool types_deeply_equal (struct type *, struct type *);
+
+extern int type_not_allocated (const struct type *type);
-extern int types_deeply_equal (struct type *, struct type *);
+extern int type_not_associated (const struct type *type);
#endif /* GDBTYPES_H */
projects / thirdparty / binutils-gdb.git / blobdiff