mirror of
https://sourceware.org/git/binutils-gdb.git
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a2d63ac679
Remove some includes reported as unused by clangd. Change-Id: Ifc74f782d5aaafd1d719816821860352090c6667
2831 lines
93 KiB
C++
2831 lines
93 KiB
C++
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/* Internal type definitions for GDB.
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Copyright (C) 1992-2024 Free Software Foundation, Inc.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if !defined (GDBTYPES_H)
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#define GDBTYPES_H 1
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/* * \page gdbtypes GDB Types
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GDB represents all the different kinds of types in programming
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languages using a common representation defined in gdbtypes.h.
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The main data structure is main_type; it consists of a code (such
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as #TYPE_CODE_ENUM for enumeration types), a number of
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generally-useful fields such as the printable name, and finally a
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field main_type::type_specific that is a union of info specific to
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particular languages or other special cases (such as calling
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convention).
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The available type codes are defined in enum #type_code. The enum
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includes codes both for types that are common across a variety
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of languages, and for types that are language-specific.
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Most accesses to type fields go through macros such as
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#TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
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written such that they can be used as both rvalues and lvalues.
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*/
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#include "hashtab.h"
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#include "gdbsupport/array-view.h"
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#include "gdbsupport/gdb-hashtab.h"
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#include <optional>
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#include "gdbsupport/enum-flags.h"
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#include "dwarf2.h"
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#include "gdbsupport/gdb_obstack.h"
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#include "gmp-utils.h"
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/* Forward declarations for prototypes. */
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struct field;
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struct block;
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struct value_print_options;
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struct language_defn;
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struct dwarf2_per_cu_data;
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struct dwarf2_per_objfile;
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struct dwarf2_property_baton;
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/* * Different kinds of data types are distinguished by the `code'
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field. */
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enum type_code
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{
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TYPE_CODE_UNDEF = 0, /**< Not used; catches errors */
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#define OP(X) X,
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#include "type-codes.def"
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#undef OP
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};
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/* * Some bits for the type's instance_flags word. See the macros
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below for documentation on each bit. */
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enum type_instance_flag_value : unsigned
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{
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TYPE_INSTANCE_FLAG_CONST = (1 << 0),
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TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
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TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
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TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
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TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
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TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
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TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
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TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7),
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TYPE_INSTANCE_FLAG_ATOMIC = (1 << 8)
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};
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DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
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/* * Not textual. By default, GDB treats all single byte integers as
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characters (or elements of strings) unless this flag is set. */
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#define TYPE_NOTTEXT(t) (((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_NOTTEXT)
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/* * Constant type. If this is set, the corresponding type has a
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const modifier. */
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#define TYPE_CONST(t) ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_CONST) != 0)
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/* * Volatile type. If this is set, the corresponding type has a
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volatile modifier. */
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#define TYPE_VOLATILE(t) \
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((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
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/* * Restrict type. If this is set, the corresponding type has a
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restrict modifier. */
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#define TYPE_RESTRICT(t) \
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((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
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/* * Atomic type. If this is set, the corresponding type has an
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_Atomic modifier. */
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#define TYPE_ATOMIC(t) \
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((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
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/* * True if this type represents either an lvalue or lvalue reference type. */
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#define TYPE_IS_REFERENCE(t) \
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((t)->code () == TYPE_CODE_REF || (t)->code () == TYPE_CODE_RVALUE_REF)
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/* * True if this type is allocatable. */
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#define TYPE_IS_ALLOCATABLE(t) \
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((t)->dyn_prop (DYN_PROP_ALLOCATED) != NULL)
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/* * True if this type has variant parts. */
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#define TYPE_HAS_VARIANT_PARTS(t) \
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((t)->dyn_prop (DYN_PROP_VARIANT_PARTS) != nullptr)
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/* * True if this type has a dynamic length. */
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#define TYPE_HAS_DYNAMIC_LENGTH(t) \
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((t)->dyn_prop (DYN_PROP_BYTE_SIZE) != nullptr)
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/* * Instruction-space delimited type. This is for Harvard architectures
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which have separate instruction and data address spaces (and perhaps
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others).
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GDB usually defines a flat address space that is a superset of the
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architecture's two (or more) address spaces, but this is an extension
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of the architecture's model.
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If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
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resides in instruction memory, even if its address (in the extended
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flat address space) does not reflect this.
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Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
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corresponding type resides in the data memory space, even if
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this is not indicated by its (flat address space) address.
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If neither flag is set, the default space for functions / methods
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is instruction space, and for data objects is data memory. */
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#define TYPE_CODE_SPACE(t) \
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((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
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#define TYPE_DATA_SPACE(t) \
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((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
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/* * Address class flags. Some environments provide for pointers
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whose size is different from that of a normal pointer or address
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types where the bits are interpreted differently than normal
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addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
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target specific ways to represent these different types of address
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classes. */
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#define TYPE_ADDRESS_CLASS_1(t) (((t)->instance_flags ()) \
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& TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
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#define TYPE_ADDRESS_CLASS_2(t) (((t)->instance_flags ()) \
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& TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
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#define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
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(TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
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#define TYPE_ADDRESS_CLASS_ALL(t) (((t)->instance_flags ()) \
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& TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
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/* * Information about a single discriminant. */
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struct discriminant_range
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{
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/* * The range of values for the variant. This is an inclusive
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range. */
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ULONGEST low, high;
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/* * Return true if VALUE is contained in this range. IS_UNSIGNED
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is true if this should be an unsigned comparison; false for
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signed. */
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bool contains (ULONGEST value, bool is_unsigned) const
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{
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if (is_unsigned)
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return value >= low && value <= high;
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LONGEST valuel = (LONGEST) value;
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return valuel >= (LONGEST) low && valuel <= (LONGEST) high;
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}
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};
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struct variant_part;
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/* * A single variant. A variant has a list of discriminant values.
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When the discriminator matches one of these, the variant is
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enabled. Each variant controls zero or more fields; and may also
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control other variant parts as well. This struct corresponds to
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DW_TAG_variant in DWARF. */
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struct variant : allocate_on_obstack<variant>
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{
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/* * The discriminant ranges for this variant. */
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gdb::array_view<discriminant_range> discriminants;
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/* * The fields controlled by this variant. This is inclusive on
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the low end and exclusive on the high end. A variant may not
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control any fields, in which case the two values will be equal.
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These are indexes into the type's array of fields. */
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int first_field;
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int last_field;
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/* * Variant parts controlled by this variant. */
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gdb::array_view<variant_part> parts;
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/* * Return true if this is the default variant. The default
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variant can be recognized because it has no associated
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discriminants. */
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bool is_default () const
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{
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return discriminants.empty ();
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}
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/* * Return true if this variant matches VALUE. IS_UNSIGNED is true
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if this should be an unsigned comparison; false for signed. */
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bool matches (ULONGEST value, bool is_unsigned) const;
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};
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/* * A variant part. Each variant part has an optional discriminant
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and holds an array of variants. This struct corresponds to
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DW_TAG_variant_part in DWARF. */
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struct variant_part : allocate_on_obstack<variant_part>
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{
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/* * The index of the discriminant field in the outer type. This is
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an index into the type's array of fields. If this is -1, there
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is no discriminant, and only the default variant can be
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considered to be selected. */
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int discriminant_index;
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/* * True if this discriminant is unsigned; false if signed. This
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comes from the type of the discriminant. */
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bool is_unsigned;
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/* * The variants that are controlled by this variant part. Note
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that these will always be sorted by field number. */
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gdb::array_view<variant> variants;
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};
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enum dynamic_prop_kind
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{
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PROP_UNDEFINED, /* Not defined. */
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PROP_CONST, /* Constant. */
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PROP_ADDR_OFFSET, /* Address offset. */
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PROP_LOCEXPR, /* Location expression. */
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PROP_LOCLIST, /* Location list. */
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PROP_VARIANT_PARTS, /* Variant parts. */
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PROP_TYPE, /* Type. */
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PROP_VARIABLE_NAME, /* Variable name. */
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PROP_OPTIMIZED_OUT, /* Optimized out. */
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};
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union dynamic_prop_data
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{
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/* Storage for constant property. */
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LONGEST const_val;
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/* Storage for dynamic property. */
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const dwarf2_property_baton *baton;
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/* Storage of variant parts for a type. A type with variant parts
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has all its fields "linearized" -- stored in a single field
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array, just as if they had all been declared that way. The
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variant parts are attached via a dynamic property, and then are
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used to control which fields end up in the final type during
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dynamic type resolution. */
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const gdb::array_view<variant_part> *variant_parts;
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/* Once a variant type is resolved, we may want to be able to go
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from the resolved type to the original type. In this case we
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rewrite the property's kind and set this field. */
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struct type *original_type;
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/* Name of a variable to look up; the variable holds the value of
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this property. */
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const char *variable_name;
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};
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/* * Used to store a dynamic property. */
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struct dynamic_prop
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{
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dynamic_prop_kind kind () const
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{
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return m_kind;
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}
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void set_undefined ()
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{
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m_kind = PROP_UNDEFINED;
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}
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void set_optimized_out ()
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{
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m_kind = PROP_OPTIMIZED_OUT;
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}
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/* Return true if this property is "available", at least in theory
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-- meaning it is neither undefined nor optimized out. */
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bool is_available () const
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{
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return m_kind != PROP_UNDEFINED && m_kind != PROP_OPTIMIZED_OUT;
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}
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LONGEST const_val () const
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{
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gdb_assert (m_kind == PROP_CONST);
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return m_data.const_val;
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}
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void set_const_val (LONGEST const_val)
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{
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m_kind = PROP_CONST;
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m_data.const_val = const_val;
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}
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/* Return true if this property has a constant value, false
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otherwise. */
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bool is_constant () const
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{ return m_kind == PROP_CONST; }
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const dwarf2_property_baton *baton () const
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{
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gdb_assert (m_kind == PROP_LOCEXPR
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|| m_kind == PROP_LOCLIST
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|| m_kind == PROP_ADDR_OFFSET);
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return m_data.baton;
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}
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void set_locexpr (const dwarf2_property_baton *baton)
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{
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m_kind = PROP_LOCEXPR;
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m_data.baton = baton;
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}
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void set_loclist (const dwarf2_property_baton *baton)
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{
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m_kind = PROP_LOCLIST;
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m_data.baton = baton;
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}
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void set_addr_offset (const dwarf2_property_baton *baton)
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{
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m_kind = PROP_ADDR_OFFSET;
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m_data.baton = baton;
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}
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const gdb::array_view<variant_part> *variant_parts () const
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{
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gdb_assert (m_kind == PROP_VARIANT_PARTS);
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return m_data.variant_parts;
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}
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void set_variant_parts (gdb::array_view<variant_part> *variant_parts)
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{
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m_kind = PROP_VARIANT_PARTS;
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m_data.variant_parts = variant_parts;
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}
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struct type *original_type () const
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{
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gdb_assert (m_kind == PROP_TYPE);
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return m_data.original_type;
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}
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void set_original_type (struct type *original_type)
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{
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m_kind = PROP_TYPE;
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m_data.original_type = original_type;
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}
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/* Return the name of the variable that holds this property's value.
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Only valid for PROP_VARIABLE_NAME. */
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const char *variable_name () const
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{
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gdb_assert (m_kind == PROP_VARIABLE_NAME);
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return m_data.variable_name;
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}
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/* Set the name of the variable that holds this property's value,
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and set this property to be of kind PROP_VARIABLE_NAME. */
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void set_variable_name (const char *name)
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{
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m_kind = PROP_VARIABLE_NAME;
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m_data.variable_name = name;
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}
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/* Determine which field of the union dynamic_prop.data is used. */
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enum dynamic_prop_kind m_kind;
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/* Storage for dynamic or static value. */
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union dynamic_prop_data m_data;
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};
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/* Compare two dynamic_prop objects for equality. dynamic_prop
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instances are equal iff they have the same type and storage. */
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extern bool operator== (const dynamic_prop &l, const dynamic_prop &r);
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/* Compare two dynamic_prop objects for inequality. */
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static inline bool operator!= (const dynamic_prop &l, const dynamic_prop &r)
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{
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return !(l == r);
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}
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/* * Define a type's dynamic property node kind. */
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enum dynamic_prop_node_kind
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{
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/* A property providing a type's data location.
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Evaluating this field yields to the location of an object's data. */
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DYN_PROP_DATA_LOCATION,
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/* A property representing DW_AT_allocated. The presence of this attribute
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indicates that the object of the type can be allocated/deallocated. */
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DYN_PROP_ALLOCATED,
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/* A property representing DW_AT_associated. The presence of this attribute
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indicated that the object of the type can be associated. */
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DYN_PROP_ASSOCIATED,
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/* A property providing an array's byte stride. */
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DYN_PROP_BYTE_STRIDE,
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/* A property holding variant parts. */
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DYN_PROP_VARIANT_PARTS,
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/* A property representing DW_AT_rank. The presence of this attribute
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indicates that the object is of assumed rank array type. */
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DYN_PROP_RANK,
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/* A property holding the size of the type. */
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DYN_PROP_BYTE_SIZE,
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};
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/* * List for dynamic type attributes. */
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struct dynamic_prop_list
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{
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/* The kind of dynamic prop in this node. */
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enum dynamic_prop_node_kind prop_kind;
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/* The dynamic property itself. */
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struct dynamic_prop prop;
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/* A pointer to the next dynamic property. */
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struct dynamic_prop_list *next;
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};
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/* * Determine which field of the union main_type.fields[x].loc is
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used. */
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enum field_loc_kind
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{
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FIELD_LOC_KIND_BITPOS, /**< bitpos */
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FIELD_LOC_KIND_ENUMVAL, /**< enumval */
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FIELD_LOC_KIND_PHYSADDR, /**< physaddr */
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FIELD_LOC_KIND_PHYSNAME, /**< physname */
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FIELD_LOC_KIND_DWARF_BLOCK /**< dwarf_block */
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};
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/* * A discriminant to determine which field in the
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main_type.type_specific union is being used, if any.
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For types such as TYPE_CODE_FLT, the use of this
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discriminant is really redundant, as we know from the type code
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which field is going to be used. As such, it would be possible to
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reduce the size of this enum in order to save a bit or two for
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other fields of struct main_type. But, since we still have extra
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room , and for the sake of clarity and consistency, we treat all fields
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of the union the same way. */
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enum type_specific_kind
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{
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TYPE_SPECIFIC_NONE,
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TYPE_SPECIFIC_CPLUS_STUFF,
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TYPE_SPECIFIC_GNAT_STUFF,
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TYPE_SPECIFIC_FLOATFORMAT,
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/* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
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TYPE_SPECIFIC_FUNC,
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TYPE_SPECIFIC_SELF_TYPE,
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TYPE_SPECIFIC_INT,
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TYPE_SPECIFIC_FIXED_POINT,
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};
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union type_owner
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{
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struct objfile *objfile;
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struct gdbarch *gdbarch;
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};
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|
union field_location
|
|
{
|
|
/* * Position of this field, counting in bits from start of
|
|
containing structure. For big-endian targets, it is the bit
|
|
offset to the MSB. For little-endian 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;
|
|
};
|
|
|
|
/* Accessibility of a member. */
|
|
enum class accessibility : unsigned char
|
|
{
|
|
/* It's important that this be 0 so that fields default to
|
|
public. */
|
|
PUBLIC = 0,
|
|
PROTECTED = 1,
|
|
PRIVATE = 2,
|
|
};
|
|
|
|
struct field
|
|
{
|
|
struct type *type () const
|
|
{
|
|
return this->m_type;
|
|
}
|
|
|
|
void set_type (struct type *type)
|
|
{
|
|
this->m_type = type;
|
|
}
|
|
|
|
const char *name () const
|
|
{
|
|
return m_name;
|
|
}
|
|
|
|
void set_name (const char *name)
|
|
{
|
|
m_name = name;
|
|
}
|
|
|
|
bool is_artificial () const
|
|
{
|
|
return m_artificial;
|
|
}
|
|
|
|
void set_is_artificial (bool is_artificial)
|
|
{
|
|
m_artificial = is_artificial;
|
|
}
|
|
|
|
unsigned int bitsize () const
|
|
{
|
|
return m_bitsize;
|
|
}
|
|
|
|
void set_bitsize (unsigned int bitsize)
|
|
{
|
|
m_bitsize = bitsize;
|
|
}
|
|
|
|
bool is_packed () const
|
|
{
|
|
return m_bitsize != 0;
|
|
}
|
|
|
|
/* Return true if this field is static; false if not. */
|
|
bool is_static () const
|
|
{
|
|
/* "static" fields are the fields whose location is not relative
|
|
to the address of the enclosing struct. It would be nice to
|
|
have a dedicated flag that would be set for static fields when
|
|
the type is being created. But in practice, checking the field
|
|
loc_kind should give us an accurate answer. */
|
|
return (m_loc_kind == FIELD_LOC_KIND_PHYSNAME
|
|
|| m_loc_kind == FIELD_LOC_KIND_PHYSADDR);
|
|
}
|
|
|
|
/* Location getters / setters. */
|
|
|
|
field_loc_kind loc_kind () const
|
|
{
|
|
return m_loc_kind;
|
|
}
|
|
|
|
LONGEST loc_bitpos () const
|
|
{
|
|
gdb_assert (m_loc_kind == FIELD_LOC_KIND_BITPOS);
|
|
return m_loc.bitpos;
|
|
}
|
|
|
|
void set_loc_bitpos (LONGEST bitpos)
|
|
{
|
|
m_loc_kind = FIELD_LOC_KIND_BITPOS;
|
|
m_loc.bitpos = bitpos;
|
|
}
|
|
|
|
LONGEST loc_enumval () const
|
|
{
|
|
gdb_assert (m_loc_kind == FIELD_LOC_KIND_ENUMVAL);
|
|
return m_loc.enumval;
|
|
}
|
|
|
|
void set_loc_enumval (LONGEST enumval)
|
|
{
|
|
m_loc_kind = FIELD_LOC_KIND_ENUMVAL;
|
|
m_loc.enumval = enumval;
|
|
}
|
|
|
|
CORE_ADDR loc_physaddr () const
|
|
{
|
|
gdb_assert (m_loc_kind == FIELD_LOC_KIND_PHYSADDR);
|
|
return m_loc.physaddr;
|
|
}
|
|
|
|
void set_loc_physaddr (CORE_ADDR physaddr)
|
|
{
|
|
m_loc_kind = FIELD_LOC_KIND_PHYSADDR;
|
|
m_loc.physaddr = physaddr;
|
|
}
|
|
|
|
const char *loc_physname () const
|
|
{
|
|
gdb_assert (m_loc_kind == FIELD_LOC_KIND_PHYSNAME);
|
|
return m_loc.physname;
|
|
}
|
|
|
|
void set_loc_physname (const char *physname)
|
|
{
|
|
m_loc_kind = FIELD_LOC_KIND_PHYSNAME;
|
|
m_loc.physname = physname;
|
|
}
|
|
|
|
dwarf2_locexpr_baton *loc_dwarf_block () const
|
|
{
|
|
gdb_assert (m_loc_kind == FIELD_LOC_KIND_DWARF_BLOCK);
|
|
return m_loc.dwarf_block;
|
|
}
|
|
|
|
void set_loc_dwarf_block (dwarf2_locexpr_baton *dwarf_block)
|
|
{
|
|
m_loc_kind = FIELD_LOC_KIND_DWARF_BLOCK;
|
|
m_loc.dwarf_block = dwarf_block;
|
|
}
|
|
|
|
/* Set the field's accessibility. */
|
|
void set_accessibility (accessibility acc)
|
|
{ m_accessibility = acc; }
|
|
|
|
/* Fetch the field's accessibility. */
|
|
enum accessibility accessibility () const
|
|
{ return m_accessibility; }
|
|
|
|
/* True if this field is 'public'. */
|
|
bool is_public () const
|
|
{ return m_accessibility == accessibility::PUBLIC; }
|
|
|
|
/* True if this field is 'private'. */
|
|
bool is_private () const
|
|
{ return m_accessibility == accessibility::PRIVATE; }
|
|
|
|
/* True if this field is 'protected'. */
|
|
bool is_protected () const
|
|
{ return m_accessibility == accessibility::PROTECTED; }
|
|
|
|
/* True if this field is 'virtual'. */
|
|
bool is_virtual () const
|
|
{ return m_virtual; }
|
|
|
|
/* Set the field's "virtual" flag. */
|
|
void set_virtual ()
|
|
{ m_virtual = true; }
|
|
|
|
/* True if this field is 'ignored'. */
|
|
bool is_ignored () const
|
|
{ return m_ignored; }
|
|
|
|
/* Set the field's "ignored" flag. Note that the 'ignored' bit is
|
|
deprecated. It was used by some unknown stabs generator, and has
|
|
been replaced by the optimized-out approach -- however, it
|
|
remains because the stabs reader was never updated. */
|
|
void set_ignored ()
|
|
{ m_ignored = true; }
|
|
|
|
union field_location m_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 m_artificial : 1;
|
|
|
|
/* Whether the field is 'virtual'. */
|
|
bool m_virtual : 1;
|
|
/* Whether the field is 'ignored'. */
|
|
bool m_ignored : 1;
|
|
|
|
/* * Discriminant for union field_location. */
|
|
|
|
ENUM_BITFIELD(field_loc_kind) m_loc_kind : 3;
|
|
|
|
/* Accessibility of the field. */
|
|
enum accessibility m_accessibility;
|
|
|
|
/* * 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 m_bitsize;
|
|
|
|
/* * 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 *m_type;
|
|
|
|
/* * Name of field, value or argument.
|
|
NULL for range bounds, array domains, and member function
|
|
arguments. */
|
|
|
|
const char *m_name;
|
|
};
|
|
|
|
struct range_bounds
|
|
{
|
|
ULONGEST bit_stride () const
|
|
{
|
|
if (this->flag_is_byte_stride)
|
|
return this->stride.const_val () * 8;
|
|
else
|
|
return this->stride.const_val ();
|
|
}
|
|
|
|
/* Return true if either bounds is optimized out. */
|
|
bool optimized_out () const
|
|
{
|
|
return (low.kind () == PROP_OPTIMIZED_OUT
|
|
|| high.kind () == PROP_OPTIMIZED_OUT);
|
|
}
|
|
|
|
/* * Low bound of range. */
|
|
|
|
struct dynamic_prop low;
|
|
|
|
/* * High bound of range. */
|
|
|
|
struct dynamic_prop high;
|
|
|
|
/* The stride value for this range. This can be stored in bits or bytes
|
|
based on the value of BYTE_STRIDE_P. It is optional to have a stride
|
|
value, if this range has no stride value defined then this will be set
|
|
to the constant zero. */
|
|
|
|
struct dynamic_prop stride;
|
|
|
|
/* * The bias. Sometimes a range value is biased before storage.
|
|
The bias is added to the stored bits to form the true value. */
|
|
|
|
LONGEST bias;
|
|
|
|
/* True if HIGH range bound contains the number of elements in the
|
|
subrange. This affects how the final high bound is computed. */
|
|
|
|
unsigned int flag_upper_bound_is_count : 1;
|
|
|
|
/* True if LOW or/and HIGH are resolved into a static bound from
|
|
a dynamic one. */
|
|
|
|
unsigned int flag_bound_evaluated : 1;
|
|
|
|
/* If this is true this STRIDE is in bytes, otherwise STRIDE is in bits. */
|
|
|
|
unsigned int flag_is_byte_stride : 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;
|
|
|
|
/* * For TYPE_CODE_FIXED_POINT types, the info necessary to decode
|
|
values of that type. */
|
|
struct fixed_point_type_info *fixed_point_info;
|
|
|
|
/* * An integer-like scalar type may be stored in just part of its
|
|
enclosing storage bytes. This structure describes this
|
|
situation. */
|
|
struct
|
|
{
|
|
/* * The bit size of the integer. This can be 0. For integers
|
|
that fill their storage (the ordinary case), this field holds
|
|
the byte size times 8. */
|
|
unsigned short bit_size;
|
|
/* * The bit offset of the integer. This is ordinarily 0, and can
|
|
only be non-zero if the bit size is less than the storage
|
|
size. */
|
|
unsigned short bit_offset;
|
|
} int_stuff;
|
|
};
|
|
|
|
/* * Main structure representing a type in GDB.
|
|
|
|
This structure is space-critical. Its layout has been tweaked to
|
|
reduce the space used. */
|
|
|
|
struct main_type
|
|
{
|
|
/* * Code for kind of type. */
|
|
|
|
ENUM_BITFIELD(type_code) code : 8;
|
|
|
|
/* * Flags about this type. These fields appear at this location
|
|
because they packs nicely here. See the TYPE_* macros for
|
|
documentation about these fields. */
|
|
|
|
unsigned int m_flag_unsigned : 1;
|
|
unsigned int m_flag_nosign : 1;
|
|
unsigned int m_flag_stub : 1;
|
|
unsigned int m_flag_target_stub : 1;
|
|
unsigned int m_flag_prototyped : 1;
|
|
unsigned int m_flag_varargs : 1;
|
|
unsigned int m_flag_vector : 1;
|
|
unsigned int m_flag_stub_supported : 1;
|
|
unsigned int m_flag_gnu_ifunc : 1;
|
|
unsigned int m_flag_fixed_instance : 1;
|
|
unsigned int m_flag_objfile_owned : 1;
|
|
unsigned int m_flag_endianity_not_default : 1;
|
|
|
|
/* * True if this type was declared with "class" rather than
|
|
"struct". */
|
|
|
|
unsigned int m_flag_declared_class : 1;
|
|
|
|
/* * True if this is an enum type with disjoint values. This
|
|
affects how the enum is printed. */
|
|
|
|
unsigned int m_flag_flag_enum : 1;
|
|
|
|
/* * For TYPE_CODE_ARRAY, this is true if this type is part of a
|
|
multi-dimensional array. Multi-dimensional arrays are
|
|
represented internally as arrays of arrays, and this flag lets
|
|
gdb distinguish between multiple dimensions and an ordinary array
|
|
of arrays. The flag is set on each inner dimension, but not the
|
|
outermost dimension. */
|
|
|
|
unsigned int m_multi_dimensional : 1;
|
|
|
|
/* * A discriminant telling us which field of the type_specific
|
|
union is being used for this type, if any. */
|
|
|
|
ENUM_BITFIELD(type_specific_kind) type_specific_field : 3;
|
|
|
|
/* The language for this type. */
|
|
|
|
ENUM_BITFIELD(language) m_lang : LANGUAGE_BITS;
|
|
|
|
/* * Number of fields described for this type. This field appears
|
|
at this location because it packs nicely here. */
|
|
|
|
unsigned int m_nfields;
|
|
|
|
/* * Name of this type, or NULL if none.
|
|
|
|
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;
|
|
|
|
/* * 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
|
|
types while it is not in the process of reading symbols from a
|
|
particular objfile. Fortunately, these happen when the type
|
|
being created is a derived type of an existing type, such as in
|
|
lookup_pointer_type(). So we can just allocate the new type
|
|
using the same objfile as the existing type, but to do this we
|
|
need a backpointer to the objfile from the existing type. Yes
|
|
this is somewhat ugly, but without major overhaul of the internal
|
|
type system, it can't be avoided for now. */
|
|
|
|
union type_owner m_owner;
|
|
|
|
/* * For a pointer type, describes the type of object pointed to.
|
|
- For an array type, describes the type of the elements.
|
|
- For a function or method type, describes the type of the return value.
|
|
- For a range type, describes the type of the full range.
|
|
- For a complex type, describes the type of each coordinate.
|
|
- For a special record or union type encoding a dynamic-sized type
|
|
in GNAT, a memoized pointer to a corresponding static version of
|
|
the type.
|
|
- Unused otherwise. */
|
|
|
|
struct type *m_target_type;
|
|
|
|
/* * For structure and union types, a description of each field.
|
|
For set and pascal array types, there is one "field",
|
|
whose type is the domain type of the set or array.
|
|
For range types, there are two "fields",
|
|
the minimum and maximum values (both inclusive).
|
|
For enum types, each possible value is described by one "field".
|
|
For a function or method type, a "field" for each parameter.
|
|
For C++ classes, there is one field for each base class (if it is
|
|
a derived class) plus one field for each class data member. Member
|
|
functions are recorded elsewhere.
|
|
|
|
Using a pointer to a separate array of fields
|
|
allows all types to have the same size, which is useful
|
|
because we can allocate the space for a type before
|
|
we know what to put in it. */
|
|
|
|
union
|
|
{
|
|
struct field *fields;
|
|
|
|
/* * Union member used for range types. */
|
|
|
|
struct range_bounds *bounds;
|
|
|
|
/* If this is a scalar type, then this is its corresponding
|
|
complex type. */
|
|
struct type *complex_type;
|
|
|
|
} flds_bnds;
|
|
|
|
/* * Slot to point to additional language-specific fields of this
|
|
type. */
|
|
|
|
union type_specific type_specific;
|
|
|
|
/* * Contains all dynamic type properties. */
|
|
struct dynamic_prop_list *dyn_prop_list;
|
|
};
|
|
|
|
/* * Number of bits allocated for alignment. */
|
|
|
|
#define TYPE_ALIGN_BITS 8
|
|
|
|
/* * A ``struct type'' describes a particular instance of a type, with
|
|
some particular qualification. */
|
|
|
|
struct type
|
|
{
|
|
/* Get the type code of this type.
|
|
|
|
Note that the code can be TYPE_CODE_TYPEDEF, so if you want the real
|
|
type, you need to do `check_typedef (type)->code ()`. */
|
|
type_code code () const
|
|
{
|
|
return this->main_type->code;
|
|
}
|
|
|
|
/* Set the type code of this type. */
|
|
void set_code (type_code code)
|
|
{
|
|
this->main_type->code = code;
|
|
}
|
|
|
|
/* Get the name of this type. */
|
|
const char *name () const
|
|
{
|
|
return this->main_type->name;
|
|
}
|
|
|
|
/* Set the name of this type. */
|
|
void set_name (const char *name)
|
|
{
|
|
this->main_type->name = name;
|
|
}
|
|
|
|
/* 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 value::allocate
|
|
calls check_typedef, X->type ()->length () is safe. */
|
|
ULONGEST length () const
|
|
{
|
|
return this->m_length;
|
|
}
|
|
|
|
void set_length (ULONGEST length)
|
|
{
|
|
this->m_length = length;
|
|
}
|
|
|
|
/* Get the number of fields of this type. */
|
|
unsigned int num_fields () const
|
|
{
|
|
return this->main_type->m_nfields;
|
|
}
|
|
|
|
/* Set the number of fields of this type. */
|
|
void set_num_fields (unsigned int num_fields)
|
|
{
|
|
this->main_type->m_nfields = num_fields;
|
|
}
|
|
|
|
/* Get the fields array of this type. */
|
|
struct field *fields () const
|
|
{
|
|
return this->main_type->flds_bnds.fields;
|
|
}
|
|
|
|
/* Get the field at index IDX. */
|
|
struct field &field (int idx) const
|
|
{
|
|
gdb_assert (idx >= 0 && idx < num_fields ());
|
|
return this->fields ()[idx];
|
|
}
|
|
|
|
/* Set the fields array of this type. */
|
|
void set_fields (struct field *fields)
|
|
{
|
|
this->main_type->flds_bnds.fields = fields;
|
|
}
|
|
|
|
/* Allocate the fields array of this type, with NFIELDS elements. If INIT,
|
|
zero-initialize the allocated memory. */
|
|
void alloc_fields (unsigned int nfields, bool init = true);
|
|
|
|
/* Allocate the fields array of this type, and copy the fields from SRC. */
|
|
void copy_fields (struct type *src);
|
|
void copy_fields (std::vector<struct field> &src);
|
|
|
|
type *index_type () const
|
|
{
|
|
return this->field (0).type ();
|
|
}
|
|
|
|
struct type *target_type () const
|
|
{
|
|
return this->main_type->m_target_type;
|
|
}
|
|
|
|
void set_target_type (struct type *target_type)
|
|
{
|
|
this->main_type->m_target_type = target_type;
|
|
}
|
|
|
|
void set_index_type (type *index_type)
|
|
{
|
|
this->field (0).set_type (index_type);
|
|
}
|
|
|
|
/* Return the instance flags converted to the correct type. */
|
|
const type_instance_flags instance_flags () const
|
|
{
|
|
return (enum type_instance_flag_value) this->m_instance_flags;
|
|
}
|
|
|
|
/* Set the instance flags. */
|
|
void set_instance_flags (type_instance_flags flags)
|
|
{
|
|
this->m_instance_flags = flags;
|
|
}
|
|
|
|
/* Get the bounds bounds of this type. The type must be a range type. */
|
|
range_bounds *bounds () const
|
|
{
|
|
switch (this->code ())
|
|
{
|
|
case TYPE_CODE_RANGE:
|
|
return this->main_type->flds_bnds.bounds;
|
|
|
|
case TYPE_CODE_ARRAY:
|
|
case TYPE_CODE_STRING:
|
|
return this->index_type ()->bounds ();
|
|
|
|
default:
|
|
gdb_assert_not_reached
|
|
("type::bounds called on type with invalid code");
|
|
}
|
|
}
|
|
|
|
/* Set the bounds of this type. The type must be a range type. */
|
|
void set_bounds (range_bounds *bounds)
|
|
{
|
|
gdb_assert (this->code () == TYPE_CODE_RANGE);
|
|
|
|
this->main_type->flds_bnds.bounds = bounds;
|
|
}
|
|
|
|
/* Return true if this type's bounds were optimized out. */
|
|
bool bound_optimized_out () const
|
|
{
|
|
return bounds ()->optimized_out ();
|
|
}
|
|
|
|
ULONGEST bit_stride () const
|
|
{
|
|
if (this->code () == TYPE_CODE_ARRAY && this->field (0).bitsize () != 0)
|
|
return this->field (0).bitsize ();
|
|
return this->bounds ()->bit_stride ();
|
|
}
|
|
|
|
/* Unsigned integer type. If this is not set for a TYPE_CODE_INT,
|
|
the type is signed (unless TYPE_NOSIGN is set). */
|
|
|
|
bool is_unsigned () const
|
|
{
|
|
return this->main_type->m_flag_unsigned;
|
|
}
|
|
|
|
void set_is_unsigned (bool is_unsigned)
|
|
{
|
|
this->main_type->m_flag_unsigned = is_unsigned;
|
|
}
|
|
|
|
/* No sign for this type. In C++, "char", "signed char", and
|
|
"unsigned char" are distinct types; so we need an extra flag to
|
|
indicate the absence of a sign! */
|
|
|
|
bool has_no_signedness () const
|
|
{
|
|
return this->main_type->m_flag_nosign;
|
|
}
|
|
|
|
void set_has_no_signedness (bool has_no_signedness)
|
|
{
|
|
this->main_type->m_flag_nosign = has_no_signedness;
|
|
}
|
|
|
|
/* This appears in a type's flags word if it is a stub type (e.g.,
|
|
if someone referenced a type that wasn't defined in a source file
|
|
via (struct sir_not_appearing_in_this_film *)). */
|
|
|
|
bool is_stub () const
|
|
{
|
|
return this->main_type->m_flag_stub;
|
|
}
|
|
|
|
void set_is_stub (bool is_stub)
|
|
{
|
|
this->main_type->m_flag_stub = is_stub;
|
|
}
|
|
|
|
/* The target type of this type is a stub type, and this type needs
|
|
to be updated if it gets un-stubbed in check_typedef. Used for
|
|
arrays and ranges, in which TYPE_LENGTH of the array/range gets set
|
|
based on the TYPE_LENGTH of the target type. Also, set for
|
|
TYPE_CODE_TYPEDEF. */
|
|
|
|
bool target_is_stub () const
|
|
{
|
|
return this->main_type->m_flag_target_stub;
|
|
}
|
|
|
|
void set_target_is_stub (bool target_is_stub)
|
|
{
|
|
this->main_type->m_flag_target_stub = target_is_stub;
|
|
}
|
|
|
|
/* 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
|
|
is used with a short field. */
|
|
|
|
bool is_prototyped () const
|
|
{
|
|
return this->main_type->m_flag_prototyped;
|
|
}
|
|
|
|
void set_is_prototyped (bool is_prototyped)
|
|
{
|
|
this->main_type->m_flag_prototyped = is_prototyped;
|
|
}
|
|
|
|
/* FIXME drow/2002-06-03: Only used for methods, but applies as well
|
|
to functions. */
|
|
|
|
bool has_varargs () const
|
|
{
|
|
return this->main_type->m_flag_varargs;
|
|
}
|
|
|
|
void set_has_varargs (bool has_varargs)
|
|
{
|
|
this->main_type->m_flag_varargs = has_varargs;
|
|
}
|
|
|
|
/* Identify a vector type. Gcc is handling this by adding an extra
|
|
attribute to the array type. We slurp that in as a new flag of a
|
|
type. This is used only in dwarf2read.c. */
|
|
|
|
bool is_vector () const
|
|
{
|
|
return this->main_type->m_flag_vector;
|
|
}
|
|
|
|
void set_is_vector (bool is_vector)
|
|
{
|
|
this->main_type->m_flag_vector = is_vector;
|
|
}
|
|
|
|
/* This debug target supports TYPE_STUB(t). In the unsupported case
|
|
we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
|
|
TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
|
|
guessed the TYPE_STUB(t) value (see dwarfread.c). */
|
|
|
|
bool stub_is_supported () const
|
|
{
|
|
return this->main_type->m_flag_stub_supported;
|
|
}
|
|
|
|
void set_stub_is_supported (bool stub_is_supported)
|
|
{
|
|
this->main_type->m_flag_stub_supported = stub_is_supported;
|
|
}
|
|
|
|
/* Used only for TYPE_CODE_FUNC where it specifies the real function
|
|
address is returned by this function call. The target_type method
|
|
determines the final returned function type to be presented to
|
|
user. */
|
|
|
|
bool is_gnu_ifunc () const
|
|
{
|
|
return this->main_type->m_flag_gnu_ifunc;
|
|
}
|
|
|
|
void set_is_gnu_ifunc (bool is_gnu_ifunc)
|
|
{
|
|
this->main_type->m_flag_gnu_ifunc = is_gnu_ifunc;
|
|
}
|
|
|
|
/* The debugging formats (especially STABS) do not contain enough
|
|
information to represent all Ada types---especially those whose
|
|
size depends on dynamic quantities. Therefore, the GNAT Ada
|
|
compiler includes extra information in the form of additional type
|
|
definitions connected by naming conventions. This flag indicates
|
|
that the type is an ordinary (unencoded) GDB type that has been
|
|
created from the necessary run-time information, and does not need
|
|
further interpretation. Optionally marks ordinary, fixed-size GDB
|
|
type. */
|
|
|
|
bool is_fixed_instance () const
|
|
{
|
|
return this->main_type->m_flag_fixed_instance;
|
|
}
|
|
|
|
void set_is_fixed_instance (bool is_fixed_instance)
|
|
{
|
|
this->main_type->m_flag_fixed_instance = is_fixed_instance;
|
|
}
|
|
|
|
/* A compiler may supply dwarf instrumentation that indicates the desired
|
|
endian interpretation of the variable differs from the native endian
|
|
representation. */
|
|
|
|
bool endianity_is_not_default () const
|
|
{
|
|
return this->main_type->m_flag_endianity_not_default;
|
|
}
|
|
|
|
void set_endianity_is_not_default (bool endianity_is_not_default)
|
|
{
|
|
this->main_type->m_flag_endianity_not_default = endianity_is_not_default;
|
|
}
|
|
|
|
|
|
/* True if this type was declared using the "class" keyword. This is
|
|
only valid for C++ structure and enum types. If false, a structure
|
|
was declared as a "struct"; if true it was declared "class". For
|
|
enum types, this is true when "enum class" or "enum struct" was
|
|
used to declare the type. */
|
|
|
|
bool is_declared_class () const
|
|
{
|
|
return this->main_type->m_flag_declared_class;
|
|
}
|
|
|
|
void set_is_declared_class (bool is_declared_class) const
|
|
{
|
|
this->main_type->m_flag_declared_class = is_declared_class;
|
|
}
|
|
|
|
/* True if this type is a "flag" enum. A flag enum is one where all
|
|
the values are pairwise disjoint when "and"ed together. This
|
|
affects how enum values are printed. */
|
|
|
|
bool is_flag_enum () const
|
|
{
|
|
return this->main_type->m_flag_flag_enum;
|
|
}
|
|
|
|
void set_is_flag_enum (bool is_flag_enum)
|
|
{
|
|
this->main_type->m_flag_flag_enum = is_flag_enum;
|
|
}
|
|
|
|
/* True if this array type is part of a multi-dimensional array. */
|
|
|
|
bool is_multi_dimensional () const
|
|
{
|
|
return this->main_type->m_multi_dimensional;
|
|
}
|
|
|
|
void set_is_multi_dimensional (bool value)
|
|
{
|
|
this->main_type->m_multi_dimensional = value;
|
|
}
|
|
|
|
/* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return a reference
|
|
to this type's fixed_point_info. */
|
|
|
|
struct fixed_point_type_info &fixed_point_info () const
|
|
{
|
|
gdb_assert (this->code () == TYPE_CODE_FIXED_POINT);
|
|
gdb_assert (this->main_type->type_specific.fixed_point_info != nullptr);
|
|
|
|
return *this->main_type->type_specific.fixed_point_info;
|
|
}
|
|
|
|
/* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, set this type's
|
|
fixed_point_info to INFO. */
|
|
|
|
void set_fixed_point_info (struct fixed_point_type_info *info) const
|
|
{
|
|
gdb_assert (this->code () == TYPE_CODE_FIXED_POINT);
|
|
|
|
this->main_type->type_specific.fixed_point_info = info;
|
|
}
|
|
|
|
/* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return its base type.
|
|
|
|
In other words, this returns the type after having peeled all
|
|
intermediate type layers (such as TYPE_CODE_RANGE, for instance).
|
|
The TYPE_CODE of the type returned is guaranteed to be
|
|
a TYPE_CODE_FIXED_POINT. */
|
|
|
|
struct type *fixed_point_type_base_type ();
|
|
|
|
/* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return its scaling
|
|
factor. */
|
|
|
|
const gdb_mpq &fixed_point_scaling_factor ();
|
|
|
|
/* * Return the dynamic property of the requested KIND from this type's
|
|
list of dynamic properties. */
|
|
dynamic_prop *dyn_prop (dynamic_prop_node_kind kind) const;
|
|
|
|
/* * Given a dynamic property PROP of a given KIND, add this dynamic
|
|
property to this type.
|
|
|
|
This function assumes that this type is objfile-owned. */
|
|
void add_dyn_prop (dynamic_prop_node_kind kind, dynamic_prop prop);
|
|
|
|
/* * Remove dynamic property of kind KIND from this type, if it exists. */
|
|
void remove_dyn_prop (dynamic_prop_node_kind kind);
|
|
|
|
/* Return true if this type is owned by an objfile. Return false if it is
|
|
owned by an architecture. */
|
|
bool is_objfile_owned () const
|
|
{
|
|
return this->main_type->m_flag_objfile_owned;
|
|
}
|
|
|
|
/* Set the owner of the type to be OBJFILE. */
|
|
void set_owner (objfile *objfile)
|
|
{
|
|
gdb_assert (objfile != nullptr);
|
|
|
|
this->main_type->m_owner.objfile = objfile;
|
|
this->main_type->m_flag_objfile_owned = true;
|
|
}
|
|
|
|
/* Set the owner of the type to be ARCH. */
|
|
void set_owner (gdbarch *arch)
|
|
{
|
|
gdb_assert (arch != nullptr);
|
|
|
|
this->main_type->m_owner.gdbarch = arch;
|
|
this->main_type->m_flag_objfile_owned = false;
|
|
}
|
|
|
|
/* Return the objfile owner of this type.
|
|
|
|
Return nullptr if this type is not objfile-owned. */
|
|
struct objfile *objfile_owner () const
|
|
{
|
|
if (!this->is_objfile_owned ())
|
|
return nullptr;
|
|
|
|
return this->main_type->m_owner.objfile;
|
|
}
|
|
|
|
/* Return the gdbarch owner of this type.
|
|
|
|
Return nullptr if this type is not gdbarch-owned. */
|
|
gdbarch *arch_owner () const
|
|
{
|
|
if (this->is_objfile_owned ())
|
|
return nullptr;
|
|
|
|
return this->main_type->m_owner.gdbarch;
|
|
}
|
|
|
|
/* Return the type's architecture. For types owned by an
|
|
architecture, that architecture is returned. For types owned by an
|
|
objfile, that objfile's architecture is returned.
|
|
|
|
The return value is always non-nullptr. */
|
|
gdbarch *arch () const;
|
|
|
|
/* * Return true if this is an integer type whose logical (bit) size
|
|
differs from its storage size; false otherwise. Always return
|
|
false for non-integer (i.e., non-TYPE_SPECIFIC_INT) types. */
|
|
bool bit_size_differs_p () const
|
|
{
|
|
return (main_type->type_specific_field == TYPE_SPECIFIC_INT
|
|
&& main_type->type_specific.int_stuff.bit_size != 8 * length ());
|
|
}
|
|
|
|
/* * Return the logical (bit) size for this integer type. Only
|
|
valid for integer (TYPE_SPECIFIC_INT) types. */
|
|
unsigned short bit_size () const
|
|
{
|
|
gdb_assert (main_type->type_specific_field == TYPE_SPECIFIC_INT);
|
|
return main_type->type_specific.int_stuff.bit_size;
|
|
}
|
|
|
|
/* * Return the bit offset for this integer type. Only valid for
|
|
integer (TYPE_SPECIFIC_INT) types. */
|
|
unsigned short bit_offset () const
|
|
{
|
|
gdb_assert (main_type->type_specific_field == TYPE_SPECIFIC_INT);
|
|
return main_type->type_specific.int_stuff.bit_offset;
|
|
}
|
|
|
|
/* Return true if this is a pointer or reference type. */
|
|
bool is_pointer_or_reference () const
|
|
{
|
|
return this->code () == TYPE_CODE_PTR || TYPE_IS_REFERENCE (this);
|
|
}
|
|
|
|
/* Return true if this type is "string-like", according to its
|
|
defining language. */
|
|
bool is_string_like ();
|
|
|
|
/* Return true if this type is "array-like". This includes arrays,
|
|
but also some forms of structure type that are recognized as
|
|
representations of arrays by the type's language. */
|
|
bool is_array_like ();
|
|
|
|
/* Return the language that this type came from. */
|
|
enum language language () const
|
|
{ return main_type->m_lang; }
|
|
|
|
/* * Type that is a pointer to this type.
|
|
NULL if no such pointer-to type is known yet.
|
|
The debugger may add the address of such a type
|
|
if it has to construct one later. */
|
|
|
|
struct type *pointer_type;
|
|
|
|
/* * C++: also need a reference type. */
|
|
|
|
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
|
|
address class. The length may differ only when one of the
|
|
address class flags are set. The variants are linked in a
|
|
circular ring and share MAIN_TYPE. */
|
|
|
|
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.
|
|
|
|
For TYPE_CODE_TYPEDEF the flags of the typedef type should be
|
|
binary or-ed with the target type, with a special case for
|
|
address class and space class. For example if this typedef does
|
|
not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
|
|
instance flags are completely inherited from the target type. No
|
|
qualifiers can be cleared by the typedef. See also
|
|
check_typedef. */
|
|
unsigned m_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 m_length;
|
|
|
|
/* * Core type, shared by a group of qualified types. */
|
|
|
|
struct main_type *main_type;
|
|
};
|
|
|
|
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_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;
|
|
|
|
/* * True if this function is deleted, false otherwise. */
|
|
|
|
unsigned int is_deleted : 1;
|
|
|
|
/* * DW_AT_defaulted attribute for this function. The value is one
|
|
of the DW_DEFAULTED constants. */
|
|
|
|
ENUM_BITFIELD (dwarf_defaulted_attribute) defaulted : 2;
|
|
|
|
/* Accessibility of the field. */
|
|
enum accessibility accessibility;
|
|
|
|
/* * 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;
|
|
|
|
/* Accessibility of the field. */
|
|
enum accessibility accessibility;
|
|
};
|
|
|
|
/* * C++ language-specific information for TYPE_CODE_STRUCT and
|
|
TYPE_CODE_UNION nodes. */
|
|
|
|
struct cplus_struct_type
|
|
{
|
|
/* * 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). 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. */
|
|
|
|
short nfn_fields;
|
|
|
|
/* * Number of template arguments. */
|
|
|
|
unsigned short n_template_arguments;
|
|
|
|
/* * One if this struct is a dynamic class, as defined by the
|
|
Itanium C++ ABI: if it requires a virtual table pointer,
|
|
because it or any of its base classes have one or more virtual
|
|
member functions or virtual base classes. Minus one if not
|
|
dynamic. Zero if not yet computed. */
|
|
|
|
int is_dynamic : 2;
|
|
|
|
/* * The calling convention for this type, fetched from the
|
|
DW_AT_calling_convention attribute. The value is one of the
|
|
DW_CC constants. */
|
|
|
|
ENUM_BITFIELD (dwarf_calling_convention) calling_convention : 8;
|
|
|
|
/* * The base class which defined the virtual function table pointer. */
|
|
|
|
struct type *vptr_basetype;
|
|
|
|
/* * For classes, structures, and unions, a description of each
|
|
field, which consists of an overloaded name, followed by the
|
|
types of arguments that the method expects, and then the name
|
|
after it has been renamed to make it distinct.
|
|
|
|
fn_fieldlists points to an array of nfn_fields of these. */
|
|
|
|
struct fn_fieldlist *fn_fieldlists;
|
|
|
|
/* * typedefs defined inside this class. typedef_field points to
|
|
an array of typedef_field_count elements. */
|
|
|
|
struct decl_field *typedef_field;
|
|
|
|
unsigned typedef_field_count;
|
|
|
|
/* * The nested types defined by this type. nested_types points to
|
|
an array of nested_types_count elements. */
|
|
|
|
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
|
|
classes. */
|
|
|
|
struct symbol **template_arguments;
|
|
};
|
|
|
|
/* * Struct used to store conversion rankings. */
|
|
|
|
struct rank
|
|
{
|
|
short rank;
|
|
|
|
/* * When two conversions are of the same type and therefore have
|
|
the same rank, subrank is used to differentiate the two.
|
|
|
|
Eg: Two derived-class-pointer to base-class-pointer conversions
|
|
would both have base pointer conversion rank, but the
|
|
conversion with the shorter distance to the ancestor is
|
|
preferable. 'subrank' would be used to reflect that. */
|
|
|
|
short subrank;
|
|
};
|
|
|
|
/* * Used for ranking a function for overload resolution. */
|
|
|
|
typedef std::vector<rank> badness_vector;
|
|
|
|
/* * GNAT Ada-specific information for various Ada types. */
|
|
|
|
struct gnat_aux_type
|
|
{
|
|
/* * Parallel type used to encode information about dynamic types
|
|
used in Ada (such as variant records, variable-size array,
|
|
etc). */
|
|
struct type* descriptive_type;
|
|
};
|
|
|
|
/* * 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. The value is one of the
|
|
DW_CC constants. */
|
|
|
|
ENUM_BITFIELD (dwarf_calling_convention) calling_convention : 8;
|
|
|
|
/* * Whether this function normally returns to its caller. It is
|
|
set from the DW_AT_noreturn attribute if set on the
|
|
DW_TAG_subprogram. */
|
|
|
|
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_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;
|
|
};
|
|
|
|
/* The type-specific info for TYPE_CODE_FIXED_POINT types. */
|
|
|
|
struct fixed_point_type_info
|
|
{
|
|
/* The fixed point type's scaling factor. */
|
|
gdb_mpq scaling_factor;
|
|
};
|
|
|
|
/* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
|
|
static structure. */
|
|
|
|
extern const struct cplus_struct_type cplus_struct_default;
|
|
|
|
extern void allocate_cplus_struct_type (struct type *);
|
|
|
|
#define INIT_CPLUS_SPECIFIC(type) \
|
|
(TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
|
|
TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
|
|
&cplus_struct_default)
|
|
|
|
#define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
|
|
|
|
#define HAVE_CPLUS_STRUCT(type) \
|
|
(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 INIT_GNAT_SPECIFIC(type) \
|
|
(TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
|
|
TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
|
|
#define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
|
|
/* * A macro that returns non-zero if the type-specific data should be
|
|
read as "gnat-stuff". */
|
|
#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)->is_fixed_instance ()))
|
|
|
|
#define INIT_FUNC_SPECIFIC(type) \
|
|
(TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
|
|
TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
|
|
TYPE_ZALLOC (type, \
|
|
sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
|
|
|
|
/* "struct fixed_point_type_info" has a field that has a destructor.
|
|
See allocate_fixed_point_type_info to understand how this is
|
|
handled. */
|
|
#define INIT_FIXED_POINT_SPECIFIC(type) \
|
|
(TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FIXED_POINT, \
|
|
allocate_fixed_point_type_info (type))
|
|
|
|
#define TYPE_MAIN_TYPE(thistype) (thistype)->main_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
|
|
|
|
/* * 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);
|
|
|
|
/* Property accessors for the type data location. */
|
|
#define TYPE_DATA_LOCATION(thistype) \
|
|
((thistype)->dyn_prop (DYN_PROP_DATA_LOCATION))
|
|
#define TYPE_DATA_LOCATION_BATON(thistype) \
|
|
TYPE_DATA_LOCATION (thistype)->data.baton
|
|
#define TYPE_DATA_LOCATION_ADDR(thistype) \
|
|
(TYPE_DATA_LOCATION (thistype)->const_val ())
|
|
#define TYPE_DATA_LOCATION_KIND(thistype) \
|
|
(TYPE_DATA_LOCATION (thistype)->kind ())
|
|
#define TYPE_DYNAMIC_LENGTH(thistype) \
|
|
((thistype)->dyn_prop (DYN_PROP_BYTE_SIZE))
|
|
|
|
/* Property accessors for the type allocated/associated. */
|
|
#define TYPE_ALLOCATED_PROP(thistype) \
|
|
((thistype)->dyn_prop (DYN_PROP_ALLOCATED))
|
|
#define TYPE_ASSOCIATED_PROP(thistype) \
|
|
((thistype)->dyn_prop (DYN_PROP_ASSOCIATED))
|
|
#define TYPE_RANK_PROP(thistype) \
|
|
((thistype)->dyn_prop (DYN_PROP_RANK))
|
|
|
|
/* C++ */
|
|
|
|
#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
|
|
/* 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
|
|
that there is. What we do, in that case, is pretend that there is
|
|
an implicit one which is the default cplus stuff. */
|
|
#define TYPE_CPLUS_SPECIFIC(thistype) \
|
|
(!HAVE_CPLUS_STRUCT(thistype) \
|
|
? (struct cplus_struct_type*)&cplus_struct_default \
|
|
: TYPE_RAW_CPLUS_SPECIFIC(thistype))
|
|
#define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
|
|
#define TYPE_CPLUS_CALLING_CONVENTION(thistype) \
|
|
TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff->calling_convention
|
|
#define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
|
|
#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) ((thistype)->field (index).type ())
|
|
#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
|
|
#define TYPE_BASECLASS_NAME(thistype,index) (thistype->field (index).name ())
|
|
#define TYPE_BASECLASS_BITPOS(thistype,index) (thistype->field (index).loc_bitpos ())
|
|
#define BASETYPE_VIA_PUBLIC(thistype, index) \
|
|
((thistype)->field (index).is_public ())
|
|
#define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
|
|
|
|
#define BASETYPE_VIA_VIRTUAL(thistype, index) \
|
|
((thistype)->field (index).is_virtual ())
|
|
|
|
#define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
|
|
#define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
|
|
#define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
|
|
#define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
|
|
#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
|
|
|
|
#define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
|
|
TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
|
|
#define TYPE_TEMPLATE_ARGUMENTS(thistype) \
|
|
TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
|
|
#define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
|
|
TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
|
|
|
|
#define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
|
|
#define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
|
|
#define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
|
|
#define TYPE_FN_FIELD_ARGS(thisfn, n) (((thisfn)[n].type)->fields ())
|
|
#define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
|
|
#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
|
|
#define TYPE_FN_FIELD_PRIVATE(thisfn, n) \
|
|
((thisfn)[n].accessibility == accessibility::PRIVATE)
|
|
#define TYPE_FN_FIELD_PROTECTED(thisfn, n) \
|
|
((thisfn)[n].accessibility == accessibility::PROTECTED)
|
|
#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
|
|
#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_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
|
|
#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)
|
|
#define TYPE_FN_FIELD_DEFAULTED(thisfn, n) ((thisfn)[n].defaulted)
|
|
#define TYPE_FN_FIELD_DELETED(thisfn, n) ((thisfn)[n].is_deleted)
|
|
|
|
/* 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_CPLUS_SPECIFIC (thistype)->typedef_field[n]
|
|
#define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
|
|
TYPE_TYPEDEF_FIELD (thistype, n).name
|
|
#define TYPE_TYPEDEF_FIELD_TYPE(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).accessibility == accessibility::PROTECTED)
|
|
#define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
|
|
(TYPE_TYPEDEF_FIELD (thistype, n).accessibility == accessibility::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).accessibility \
|
|
== accessibility::PROTECTED)
|
|
#define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
|
|
(TYPE_NESTED_TYPES_FIELD (thistype, n).accessibility \
|
|
== accessibility::PRIVATE)
|
|
|
|
#define TYPE_IS_OPAQUE(thistype) \
|
|
((((thistype)->code () == TYPE_CODE_STRUCT) \
|
|
|| ((thistype)->code () == TYPE_CODE_UNION)) \
|
|
&& ((thistype)->num_fields () == 0) \
|
|
&& (!HAVE_CPLUS_STRUCT (thistype) \
|
|
|| TYPE_NFN_FIELDS (thistype) == 0) \
|
|
&& ((thistype)->is_stub () || !(thistype)->stub_is_supported ()))
|
|
|
|
/* * A helper macro that returns the name of a type or "unnamed type"
|
|
if the type has no name. */
|
|
|
|
#define TYPE_SAFE_NAME(type) \
|
|
(type->name () != nullptr ? type->name () : _("<unnamed type>"))
|
|
|
|
/* * A helper macro that returns the name of an error type. If the
|
|
type has a name, it is used; otherwise, a default is used. */
|
|
|
|
#define TYPE_ERROR_NAME(type) \
|
|
(type->name () ? type->name () : _("<error type>"))
|
|
|
|
/* Given TYPE, return its floatformat. */
|
|
const struct floatformat *floatformat_from_type (const struct type *type);
|
|
|
|
struct builtin_type
|
|
{
|
|
/* Integral types. */
|
|
|
|
/* Implicit size/sign (based on the architecture's ABI). */
|
|
struct type *builtin_void = nullptr;
|
|
struct type *builtin_char = nullptr;
|
|
struct type *builtin_short = nullptr;
|
|
struct type *builtin_int = nullptr;
|
|
struct type *builtin_long = nullptr;
|
|
struct type *builtin_signed_char = nullptr;
|
|
struct type *builtin_unsigned_char = nullptr;
|
|
struct type *builtin_unsigned_short = nullptr;
|
|
struct type *builtin_unsigned_int = nullptr;
|
|
struct type *builtin_unsigned_long = nullptr;
|
|
struct type *builtin_bfloat16 = nullptr;
|
|
struct type *builtin_half = nullptr;
|
|
struct type *builtin_float = nullptr;
|
|
struct type *builtin_double = nullptr;
|
|
struct type *builtin_long_double = nullptr;
|
|
struct type *builtin_complex = nullptr;
|
|
struct type *builtin_double_complex = nullptr;
|
|
struct type *builtin_string = nullptr;
|
|
struct type *builtin_bool = nullptr;
|
|
struct type *builtin_long_long = nullptr;
|
|
struct type *builtin_unsigned_long_long = nullptr;
|
|
struct type *builtin_decfloat = nullptr;
|
|
struct type *builtin_decdouble = nullptr;
|
|
struct type *builtin_declong = nullptr;
|
|
|
|
/* "True" character types.
|
|
We use these for the '/c' print format, because c_char is just a
|
|
one-byte integral type, which languages less laid back than C
|
|
will print as ... well, a one-byte integral type. */
|
|
struct type *builtin_true_char = nullptr;
|
|
struct type *builtin_true_unsigned_char = nullptr;
|
|
|
|
/* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
|
|
is for when an architecture needs to describe a register that has
|
|
no size. */
|
|
struct type *builtin_int0 = nullptr;
|
|
struct type *builtin_int8 = nullptr;
|
|
struct type *builtin_uint8 = nullptr;
|
|
struct type *builtin_int16 = nullptr;
|
|
struct type *builtin_uint16 = nullptr;
|
|
struct type *builtin_int24 = nullptr;
|
|
struct type *builtin_uint24 = nullptr;
|
|
struct type *builtin_int32 = nullptr;
|
|
struct type *builtin_uint32 = nullptr;
|
|
struct type *builtin_int64 = nullptr;
|
|
struct type *builtin_uint64 = nullptr;
|
|
struct type *builtin_int128 = nullptr;
|
|
struct type *builtin_uint128 = nullptr;
|
|
|
|
/* Wide character types. */
|
|
struct type *builtin_char16 = nullptr;
|
|
struct type *builtin_char32 = nullptr;
|
|
struct type *builtin_wchar = nullptr;
|
|
|
|
/* Pointer types. */
|
|
|
|
/* * `pointer to data' type. Some target platforms use an implicitly
|
|
{sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
|
|
struct type *builtin_data_ptr = nullptr;
|
|
|
|
/* * `pointer to function (returning void)' type. Harvard
|
|
architectures mean that ABI function and code pointers are not
|
|
interconvertible. Similarly, since ANSI, C standards have
|
|
explicitly said that pointers to functions and pointers to data
|
|
are not interconvertible --- that is, you can't cast a function
|
|
pointer to void * and back, and expect to get the same value.
|
|
However, all function pointer types are interconvertible, so void
|
|
(*) () can server as a generic function pointer. */
|
|
|
|
struct type *builtin_func_ptr = nullptr;
|
|
|
|
/* * `function returning pointer to function (returning void)' type.
|
|
The final void return type is not significant for it. */
|
|
|
|
struct type *builtin_func_func = nullptr;
|
|
|
|
/* Special-purpose types. */
|
|
|
|
/* * This type is used to represent a GDB internal function. */
|
|
|
|
struct type *internal_fn = nullptr;
|
|
|
|
/* * This type is used to represent an xmethod. */
|
|
struct type *xmethod = nullptr;
|
|
|
|
/* * This type is used to represent symbol addresses. */
|
|
struct type *builtin_core_addr = nullptr;
|
|
|
|
/* * This type represents a type that was unrecognized in symbol
|
|
read-in. */
|
|
struct type *builtin_error = nullptr;
|
|
|
|
/* * Types used for symbols with no debug information. */
|
|
struct type *nodebug_text_symbol = nullptr;
|
|
struct type *nodebug_text_gnu_ifunc_symbol = nullptr;
|
|
struct type *nodebug_got_plt_symbol = nullptr;
|
|
struct type *nodebug_data_symbol = nullptr;
|
|
struct type *nodebug_unknown_symbol = nullptr;
|
|
struct type *nodebug_tls_symbol = nullptr;
|
|
};
|
|
|
|
/* * Return the type table for the specified architecture. */
|
|
|
|
extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
|
|
|
|
/* * Return the type table for the specified objfile. */
|
|
|
|
extern const struct builtin_type *builtin_type (struct objfile *objfile);
|
|
|
|
/* Explicit floating-point formats. See "floatformat.h". */
|
|
extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ieee_quad[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
|
|
extern const struct floatformat *floatformats_bfloat16[BFD_ENDIAN_UNKNOWN];
|
|
|
|
/* 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
|
|
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 (((t)->is_objfile_owned () \
|
|
? &((t)->objfile_owner ()->objfile_obstack) \
|
|
: gdbarch_obstack ((t)->arch_owner ())), \
|
|
size))
|
|
|
|
|
|
/* See comment on TYPE_ALLOC. */
|
|
|
|
#define TYPE_ZALLOC(t,size) (memset (TYPE_ALLOC (t, size), 0, size))
|
|
|
|
/* * This returns the target type (or NULL) of TYPE, also skipping
|
|
past typedefs. */
|
|
|
|
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);
|
|
|
|
/* An object of this type is passed when allocating certain types. It
|
|
determines where the new type is allocated. Ultimately a type is
|
|
either allocated on a on an objfile obstack or on a gdbarch
|
|
obstack. However, it's also possible to request that a new type be
|
|
allocated on the same obstack as some existing type, or that a
|
|
"new" type instead overwrite a supplied type object. */
|
|
|
|
class type_allocator
|
|
{
|
|
public:
|
|
|
|
/* Create new types on OBJFILE. */
|
|
type_allocator (objfile *objfile, enum language lang)
|
|
: m_is_objfile (true),
|
|
m_lang (lang)
|
|
{
|
|
m_data.objfile = objfile;
|
|
}
|
|
|
|
/* Create new types on GDBARCH. */
|
|
explicit type_allocator (gdbarch *gdbarch)
|
|
: m_lang (language_minimal)
|
|
{
|
|
m_data.gdbarch = gdbarch;
|
|
}
|
|
|
|
/* This determines whether a passed-in type should be rewritten in
|
|
place, or whether it should simply determine where the new type
|
|
is created. */
|
|
enum type_allocator_kind
|
|
{
|
|
/* Allocate on same obstack as existing type. */
|
|
SAME = 0,
|
|
/* Smash the existing type. */
|
|
SMASH = 1,
|
|
};
|
|
|
|
/* Create new types either on the same obstack as TYPE; or if SMASH
|
|
is passed, overwrite TYPE. */
|
|
explicit type_allocator (struct type *type,
|
|
type_allocator_kind kind = SAME)
|
|
: m_lang (type->language ())
|
|
{
|
|
if (kind == SAME)
|
|
{
|
|
if (type->is_objfile_owned ())
|
|
{
|
|
m_data.objfile = type->objfile_owner ();
|
|
m_is_objfile = true;
|
|
}
|
|
else
|
|
m_data.gdbarch = type->arch_owner ();
|
|
}
|
|
else
|
|
{
|
|
m_smash = true;
|
|
m_data.type = type;
|
|
}
|
|
}
|
|
|
|
/* Create new types on the same obstack as TYPE. */
|
|
explicit type_allocator (const struct type *type)
|
|
: m_is_objfile (type->is_objfile_owned ()),
|
|
m_lang (type->language ())
|
|
{
|
|
if (type->is_objfile_owned ())
|
|
m_data.objfile = type->objfile_owner ();
|
|
else
|
|
m_data.gdbarch = type->arch_owner ();
|
|
}
|
|
|
|
/* Create a new type on the desired obstack. Note that a "new" type
|
|
is not created if type-smashing was selected at construction. */
|
|
type *new_type ();
|
|
|
|
/* Create a new type on the desired obstack, and fill in its code,
|
|
length, and name. If NAME is non-null, it is copied to the
|
|
destination obstack first. Note that a "new" type is not created
|
|
if type-smashing was selected at construction. */
|
|
type *new_type (enum type_code code, int bit, const char *name);
|
|
|
|
/* Return the architecture associated with this allocator. This
|
|
comes from whatever object was supplied to the constructor. */
|
|
gdbarch *arch ();
|
|
|
|
private:
|
|
|
|
/* Where the type should wind up. */
|
|
union
|
|
{
|
|
struct objfile *objfile;
|
|
struct gdbarch *gdbarch;
|
|
struct type *type;
|
|
} m_data {};
|
|
|
|
/* True if this allocator uses the objfile field above. */
|
|
bool m_is_objfile = false;
|
|
/* True if this allocator uses the type field above, indicating that
|
|
the "allocation" should be done in-place. */
|
|
bool m_smash = false;
|
|
/* The language for types created by this allocator. */
|
|
enum language m_lang;
|
|
};
|
|
|
|
/* Allocate a TYPE_CODE_INT type structure using ALLOC. 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. */
|
|
|
|
extern struct type *init_integer_type (type_allocator &alloc, int bit,
|
|
int unsigned_p, const char *name);
|
|
|
|
/* Allocate a TYPE_CODE_CHAR type structure using ALLOC. 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. */
|
|
|
|
extern struct type *init_character_type (type_allocator &alloc, int bit,
|
|
int unsigned_p, const char *name);
|
|
|
|
/* Allocate a TYPE_CODE_BOOL type structure using ALLOC. 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. */
|
|
|
|
extern struct type *init_boolean_type (type_allocator &alloc, int bit,
|
|
int unsigned_p, const char *name);
|
|
|
|
/* Allocate a TYPE_CODE_FLT type structure using ALLOC.
|
|
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. BYTE_ORDER is the byte order
|
|
to use. If it is BFD_ENDIAN_UNKNOWN (the default), then the byte
|
|
order of the objfile's architecture is used. */
|
|
|
|
extern struct type *init_float_type
|
|
(type_allocator &alloc, int bit, const char *name,
|
|
const struct floatformat **floatformats,
|
|
enum bfd_endian byte_order = BFD_ENDIAN_UNKNOWN);
|
|
|
|
/* Allocate a TYPE_CODE_DECFLOAT type structure using ALLOC.
|
|
BIT is the type size in bits. NAME is the type name. */
|
|
|
|
extern struct type *init_decfloat_type (type_allocator &alloc, int bit,
|
|
const char *name);
|
|
|
|
extern bool can_create_complex_type (struct type *);
|
|
extern struct type *init_complex_type (const char *, struct type *);
|
|
|
|
/* Allocate a TYPE_CODE_PTR type structure using ALLOC.
|
|
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. */
|
|
|
|
extern struct type *init_pointer_type (type_allocator &alloc, int bit,
|
|
const char *name,
|
|
struct type *target_type);
|
|
|
|
extern struct type *init_fixed_point_type (type_allocator &, int, int,
|
|
const char *);
|
|
|
|
/* Helper functions to construct a struct or record type. An
|
|
initially empty type is created using arch_composite_type().
|
|
Fields are then added using append_composite_type_field*(). A union
|
|
type has its size set to the largest field. A struct type has each
|
|
field packed against the previous. */
|
|
|
|
extern struct type *arch_composite_type (struct gdbarch *gdbarch,
|
|
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,
|
|
const char *name,
|
|
struct type *field,
|
|
int alignment);
|
|
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_field() and append_flag_type_flag(). */
|
|
extern struct type *arch_flags_type (struct gdbarch *gdbarch,
|
|
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 *, 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 **,
|
|
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 type_instance_flags address_space_name_to_type_instance_flags
|
|
(struct gdbarch *, const char *);
|
|
|
|
extern const char *address_space_type_instance_flags_to_name
|
|
(struct gdbarch *, type_instance_flags);
|
|
|
|
extern struct type *make_type_with_address_space
|
|
(struct type *type, type_instance_flags space_identifier);
|
|
|
|
extern struct type *lookup_memberptr_type (struct type *, struct type *);
|
|
|
|
extern struct type *lookup_methodptr_type (struct type *);
|
|
|
|
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 void smash_to_memberptr_type (struct type *, struct type *,
|
|
struct type *);
|
|
|
|
extern void smash_to_methodptr_type (struct type *, 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.
|
|
|
|
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 interchangeable,
|
|
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 interchangeable,
|
|
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 *make_pointer_type (struct type *, struct type **);
|
|
|
|
extern struct type *lookup_pointer_type (struct type *);
|
|
|
|
extern struct type *make_function_type (struct type *, struct type **);
|
|
|
|
extern struct type *lookup_function_type (struct type *);
|
|
|
|
extern struct type *lookup_function_type_with_arguments (struct type *,
|
|
int,
|
|
struct type **);
|
|
|
|
/* Create a range type using ALLOC.
|
|
|
|
Indices will be of type INDEX_TYPE, and will range from LOW_BOUND
|
|
to HIGH_BOUND, inclusive. */
|
|
|
|
extern struct type *create_static_range_type (type_allocator &alloc,
|
|
struct type *index_type,
|
|
LONGEST low_bound,
|
|
LONGEST high_bound);
|
|
|
|
/* Create an array type using ALLOC.
|
|
|
|
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. */
|
|
|
|
extern struct type *create_array_type_with_stride
|
|
(type_allocator &alloc, struct type *element_type,
|
|
struct type *range_type, struct dynamic_prop *byte_stride_prop,
|
|
unsigned int bit_stride);
|
|
|
|
/* Create a range type using ALLOC with a dynamic range from LOW_BOUND
|
|
to HIGH_BOUND, inclusive. INDEX_TYPE is the underlying type. BIAS
|
|
is the bias to be applied when storing or retrieving values of this
|
|
type. */
|
|
|
|
extern struct type *create_range_type (type_allocator &alloc,
|
|
struct type *index_type,
|
|
const struct dynamic_prop *low_bound,
|
|
const struct dynamic_prop *high_bound,
|
|
LONGEST bias);
|
|
|
|
/* Like CREATE_RANGE_TYPE but also sets up a stride. When BYTE_STRIDE_P
|
|
is true the value in STRIDE is a byte stride, otherwise STRIDE is a bit
|
|
stride. */
|
|
|
|
extern struct type *create_range_type_with_stride
|
|
(type_allocator &alloc, struct type *index_type,
|
|
const struct dynamic_prop *low_bound,
|
|
const struct dynamic_prop *high_bound, LONGEST bias,
|
|
const struct dynamic_prop *stride, bool byte_stride_p);
|
|
|
|
/* Same as create_array_type_with_stride but with no bit_stride
|
|
(BIT_STRIDE = 0), thus building an unpacked array. */
|
|
|
|
extern struct type *create_array_type (type_allocator &alloc,
|
|
struct type *element_type,
|
|
struct type *range_type);
|
|
|
|
extern struct type *lookup_array_range_type (struct type *, LONGEST, LONGEST);
|
|
|
|
/* Create a string type using ALLOC. String types are similar enough
|
|
to array of char types that we can use create_array_type to build
|
|
the basic type and then bash it into a string type.
|
|
|
|
For fixed length strings, the range type contains 0 as the lower
|
|
bound and the length of the string minus one as the upper bound. */
|
|
|
|
extern struct type *create_string_type (type_allocator &alloc,
|
|
struct type *string_char_type,
|
|
struct type *range_type);
|
|
|
|
extern struct type *lookup_string_range_type (struct type *, LONGEST, LONGEST);
|
|
|
|
extern struct type *create_set_type (type_allocator &alloc,
|
|
struct type *domain_type);
|
|
|
|
extern struct type *lookup_unsigned_typename (const struct language_defn *,
|
|
const char *);
|
|
|
|
extern struct type *lookup_signed_typename (const struct language_defn *,
|
|
const char *);
|
|
|
|
extern ULONGEST get_unsigned_type_max (struct type *);
|
|
|
|
extern void get_signed_type_minmax (struct type *, LONGEST *, LONGEST *);
|
|
|
|
extern CORE_ADDR get_pointer_type_max (struct type *);
|
|
|
|
/* * Resolve all dynamic values of a type e.g. array bounds to static values.
|
|
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.
|
|
|
|
If FRAME is given, it is used when evaluating dynamic properties.
|
|
This can be important when a static link is seen. If not given,
|
|
the selected frame is used.
|
|
|
|
For an array type, if the element type is dynamic, then that will
|
|
not be resolved. This is done because each individual element may
|
|
have a different type when resolved (depending on the contents of
|
|
memory). In this situation, 'is_dynamic_type' will still return
|
|
true for the return value of this function. */
|
|
extern struct type *resolve_dynamic_type
|
|
(struct type *type, gdb::array_view<const gdb_byte> valaddr,
|
|
CORE_ADDR addr, const frame_info_ptr *frame = nullptr);
|
|
|
|
/* * Predicate if the type has dynamic values, which are not resolved yet.
|
|
See the caveat in 'resolve_dynamic_type' to understand a scenario
|
|
where an apparently-resolved type may still be considered
|
|
"dynamic". */
|
|
extern bool is_dynamic_type (struct type *type);
|
|
|
|
extern struct type *check_typedef (struct type *);
|
|
|
|
extern void check_stub_method_group (struct type *, int);
|
|
|
|
extern char *gdb_mangle_name (struct type *, int, int);
|
|
|
|
/* Lookup a typedef or primitive type named NAME, visible in lexical block
|
|
BLOCK. If NOERR is nonzero, return zero if NAME is not suitably
|
|
defined.
|
|
|
|
If this function finds a suitable type then check_typedef is called on
|
|
the type, this ensures that if the type being returned is a typedef
|
|
then the length of the type will be correct. The original typedef will
|
|
still be returned, not the result of calling check_typedef. */
|
|
|
|
extern struct type *lookup_typename (const struct language_defn *language,
|
|
const char *name,
|
|
const struct block *block, int noerr);
|
|
|
|
extern struct type *lookup_template_type (const char *, struct type *,
|
|
const struct block *);
|
|
|
|
extern int get_vptr_fieldno (struct type *, struct type **);
|
|
|
|
/* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type
|
|
TYPE.
|
|
|
|
Return true if the two bounds are available, false otherwise. */
|
|
|
|
extern bool get_discrete_bounds (struct type *type, LONGEST *lowp,
|
|
LONGEST *highp);
|
|
|
|
/* If TYPE's low bound is a known constant, return it, else return nullopt. */
|
|
|
|
extern std::optional<LONGEST> get_discrete_low_bound (struct type *type);
|
|
|
|
/* If TYPE's high bound is a known constant, return it, else return nullopt. */
|
|
|
|
extern std::optional<LONGEST> get_discrete_high_bound (struct type *type);
|
|
|
|
/* Assuming TYPE is a simple, non-empty array type, compute its upper
|
|
and lower bound. Save the low bound into LOW_BOUND if not NULL.
|
|
Save the high bound into HIGH_BOUND if not NULL.
|
|
|
|
Return true if the operation was successful. Return false otherwise,
|
|
in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. */
|
|
|
|
extern bool get_array_bounds (struct type *type, LONGEST *low_bound,
|
|
LONGEST *high_bound);
|
|
|
|
extern std::optional<LONGEST> discrete_position (struct type *type,
|
|
LONGEST val);
|
|
|
|
extern int class_types_same_p (const struct type *, const struct type *);
|
|
|
|
extern int is_ancestor (struct type *, struct type *);
|
|
|
|
extern int is_public_ancestor (struct type *, struct type *);
|
|
|
|
extern int is_unique_ancestor (struct type *, struct value *);
|
|
|
|
/* Overload resolution */
|
|
|
|
/* * Badness if parameter list length doesn't match arg list length. */
|
|
extern const struct rank LENGTH_MISMATCH_BADNESS;
|
|
|
|
/* * Dummy badness value for nonexistent parameter positions. */
|
|
extern const struct rank TOO_FEW_PARAMS_BADNESS;
|
|
/* * Badness if no conversion among types. */
|
|
extern const struct rank INCOMPATIBLE_TYPE_BADNESS;
|
|
|
|
/* * Badness of an exact match. */
|
|
extern const struct rank EXACT_MATCH_BADNESS;
|
|
|
|
/* * Badness of integral promotion. */
|
|
extern const struct rank INTEGER_PROMOTION_BADNESS;
|
|
/* * Badness of floating promotion. */
|
|
extern const struct rank FLOAT_PROMOTION_BADNESS;
|
|
/* * Badness of converting a derived class pointer
|
|
to a base class pointer. */
|
|
extern const struct rank BASE_PTR_CONVERSION_BADNESS;
|
|
/* * Badness of integral conversion. */
|
|
extern const struct rank INTEGER_CONVERSION_BADNESS;
|
|
/* * Badness of floating conversion. */
|
|
extern const struct rank FLOAT_CONVERSION_BADNESS;
|
|
/* * Badness of integer<->floating conversions. */
|
|
extern const struct rank INT_FLOAT_CONVERSION_BADNESS;
|
|
/* * Badness of conversion of pointer to void pointer. */
|
|
extern const struct rank VOID_PTR_CONVERSION_BADNESS;
|
|
/* * Badness of conversion to boolean. */
|
|
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. Subrank
|
|
is the type of reference conversion being done. */
|
|
extern const struct rank REFERENCE_CONVERSION_BADNESS;
|
|
extern const struct rank REFERENCE_SEE_THROUGH_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 */
|
|
|
|
/* * Converting a pointer to an int is usually OK. */
|
|
extern const struct rank NS_POINTER_CONVERSION_BADNESS;
|
|
|
|
/* * Badness of converting a (non-zero) integer constant
|
|
to a pointer. */
|
|
extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS;
|
|
|
|
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 (const badness_vector &,
|
|
const badness_vector &);
|
|
|
|
extern badness_vector rank_function (gdb::array_view<type *> parms,
|
|
gdb::array_view<value *> args,
|
|
bool varargs = false);
|
|
|
|
extern struct rank rank_one_type (struct type *, struct type *,
|
|
struct value *);
|
|
|
|
extern void recursive_dump_type (struct type *, int);
|
|
|
|
/* printcmd.c */
|
|
|
|
extern void print_scalar_formatted (const gdb_byte *, struct type *,
|
|
const struct value_print_options *,
|
|
int, struct ui_file *);
|
|
|
|
extern int can_dereference (struct type *);
|
|
|
|
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 int class_or_union_p (const struct type *);
|
|
|
|
extern void maintenance_print_type (const char *, int);
|
|
|
|
extern htab_up create_copied_types_hash ();
|
|
|
|
extern struct type *copy_type_recursive (struct type *type,
|
|
htab_t copied_types);
|
|
|
|
extern struct type *copy_type (const struct type *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 type_not_associated (const struct type *type);
|
|
|
|
/* Return True if TYPE is a TYPE_CODE_FIXED_POINT or if TYPE is
|
|
a range type whose base type is a TYPE_CODE_FIXED_POINT. */
|
|
extern bool is_fixed_point_type (struct type *type);
|
|
|
|
/* Allocate a fixed-point type info for TYPE. This should only be
|
|
called by INIT_FIXED_POINT_SPECIFIC. */
|
|
extern void allocate_fixed_point_type_info (struct type *type);
|
|
|
|
/* * When the type includes explicit byte ordering, return that.
|
|
Otherwise, the byte ordering from gdbarch_byte_order for
|
|
the type's arch is returned. */
|
|
|
|
extern enum bfd_endian type_byte_order (const struct type *type);
|
|
|
|
/* A flag to enable printing of debugging information of C++
|
|
overloading. */
|
|
|
|
extern unsigned int overload_debug;
|
|
|
|
/* Return whether the function type represented by TYPE is marked as unsafe
|
|
to call by the debugger.
|
|
|
|
This usually indicates that the function does not follow the target's
|
|
standard calling convention. */
|
|
|
|
extern bool is_nocall_function (const struct type *type);
|
|
|
|
#endif /* GDBTYPES_H */
|