/* Internal type definitions for GDB.
- Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
+
Contributed by Cygnus Support, using pieces from other GDB modules.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (GDBTYPES_H)
#define GDBTYPES_H 1
-/* Codes for `fundamental types'. This is a monstrosity based on the
- bogus notion that there are certain compiler-independent
- `fundamental types'. None of these is well-defined (how big is
- FT_SHORT? Does it depend on the language? How does the
- language-specific code know which type to correlate to FT_SHORT?) */
-
-#define FT_VOID 0
-#define FT_BOOLEAN 1
-#define FT_CHAR 2
-#define FT_SIGNED_CHAR 3
-#define FT_UNSIGNED_CHAR 4
-#define FT_SHORT 5
-#define FT_SIGNED_SHORT 6
-#define FT_UNSIGNED_SHORT 7
-#define FT_INTEGER 8
-#define FT_SIGNED_INTEGER 9
-#define FT_UNSIGNED_INTEGER 10
-#define FT_LONG 11
-#define FT_SIGNED_LONG 12
-#define FT_UNSIGNED_LONG 13
-#define FT_LONG_LONG 14
-#define FT_SIGNED_LONG_LONG 15
-#define FT_UNSIGNED_LONG_LONG 16
-#define FT_FLOAT 17
-#define FT_DBL_PREC_FLOAT 18
-#define FT_EXT_PREC_FLOAT 19
-#define FT_COMPLEX 20
-#define FT_DBL_PREC_COMPLEX 21
-#define FT_EXT_PREC_COMPLEX 22
-#define FT_STRING 23
-#define FT_FIXED_DECIMAL 24
-#define FT_FLOAT_DECIMAL 25
-#define FT_BYTE 26
-#define FT_UNSIGNED_BYTE 27
-
-#define FT_NUM_MEMBERS 28 /* Highest FT_* above, plus one. */
+#include "hashtab.h"
+
+/* Forward declarations for prototypes. */
+struct field;
+struct block;
+struct value_print_options;
+struct language_defn;
/* Some macros for char-based bitfields. */
/* Different kinds of data types are distinguished by the `code' field. */
enum type_code
-{
- TYPE_CODE_UNDEF, /* Not used; catches errors */
- TYPE_CODE_PTR, /* Pointer type */
- TYPE_CODE_ARRAY, /* Array type with lower & upper bounds. */
- TYPE_CODE_STRUCT, /* C struct or Pascal record */
- TYPE_CODE_UNION, /* C union or Pascal variant part */
- TYPE_CODE_ENUM, /* Enumeration type */
- TYPE_CODE_FUNC, /* Function type */
- TYPE_CODE_INT, /* Integer type */
-
- /* Floating type. This is *NOT* a complex type. Beware, there are parts
- of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
- TYPE_CODE_FLT,
-
- /* Void type. The length field specifies the length (probably always
- one) which is used in pointer arithmetic involving pointers to
- this type, but actually dereferencing such a pointer is invalid;
- a void type has no length and no actual representation in memory
- or registers. A pointer to a void type is a generic pointer. */
- TYPE_CODE_VOID,
-
- TYPE_CODE_SET, /* Pascal sets */
- TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
-
- /* A string type which is like an array of character but prints
- differently (at least for CHILL). It does not contain a length
- field as Pascal strings (for many Pascals, anyway) do; if we want
- to deal with such strings, we should use a new type code. */
- TYPE_CODE_STRING,
-
- /* String of bits; like TYPE_CODE_SET but prints differently (at least
- for CHILL). */
- TYPE_CODE_BITSTRING,
-
- /* Unknown type. The length field is valid if we were able to
- deduce that much about the type, or 0 if we don't even know that. */
- TYPE_CODE_ERROR,
-
- /* C++ */
- TYPE_CODE_MEMBER, /* Member type */
- TYPE_CODE_METHOD, /* Method type */
- TYPE_CODE_REF, /* C++ Reference types */
-
- TYPE_CODE_CHAR, /* *real* character type */
-
- /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
- (e.g. FORTRAN "logical" used as unsigned int). */
- TYPE_CODE_BOOL,
-
- /* Fortran */
- TYPE_CODE_COMPLEX, /* Complex float */
- TYPE_CODE_LITERAL_COMPLEX, /* */
- TYPE_CODE_LITERAL_STRING /* */
-};
+ {
+ TYPE_CODE_UNDEF, /* Not used; catches errors */
+ TYPE_CODE_PTR, /* Pointer type */
+
+ /* Array type with lower & upper bounds.
+
+ Regardless of the language, GDB represents multidimensional
+ array types the way C does: as arrays of arrays. So an
+ instance of a GDB array type T can always be seen as a series
+ of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
+ memory.
+
+ Row-major languages like C lay out multi-dimensional arrays so
+ that incrementing the rightmost index in a subscripting
+ expression results in the smallest change in the address of the
+ element referred to. Column-major languages like Fortran lay
+ them out so that incrementing the leftmost index results in the
+ smallest change.
+
+ This means that, in column-major languages, working our way
+ from type to target type corresponds to working through indices
+ from right to left, not left to right. */
+ TYPE_CODE_ARRAY,
+
+ TYPE_CODE_STRUCT, /* C struct or Pascal record */
+ TYPE_CODE_UNION, /* C union or Pascal variant part */
+ TYPE_CODE_ENUM, /* Enumeration type */
+ TYPE_CODE_FLAGS, /* Bit flags type */
+ TYPE_CODE_FUNC, /* Function type */
+ TYPE_CODE_INT, /* Integer type */
+
+ /* Floating type. This is *NOT* a complex type. Beware, there are parts
+ of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
+ TYPE_CODE_FLT,
+
+ /* Void type. The length field specifies the length (probably always
+ one) which is used in pointer arithmetic involving pointers to
+ this type, but actually dereferencing such a pointer is invalid;
+ a void type has no length and no actual representation in memory
+ or registers. A pointer to a void type is a generic pointer. */
+ TYPE_CODE_VOID,
+
+ TYPE_CODE_SET, /* Pascal sets */
+ TYPE_CODE_RANGE, /* Range (integers within spec'd bounds). */
+
+ /* A string type which is like an array of character but prints
+ differently (at least for (the deleted) CHILL). It does not
+ contain a length field as Pascal strings (for many Pascals,
+ anyway) do; if we want to deal with such strings, we should use
+ a new type code. */
+ TYPE_CODE_STRING,
+
+ /* String of bits; like TYPE_CODE_SET but prints differently (at
+ least for (the deleted) CHILL). */
+ TYPE_CODE_BITSTRING,
+
+ /* Unknown type. The length field is valid if we were able to
+ deduce that much about the type, or 0 if we don't even know that. */
+ TYPE_CODE_ERROR,
+
+ /* C++ */
+ TYPE_CODE_METHOD, /* Method type */
+
+ /* Pointer-to-member-function type. This describes how to access a
+ particular member function of a class (possibly a virtual
+ member function). The representation may vary between different
+ C++ ABIs. */
+ TYPE_CODE_METHODPTR,
+
+ /* Pointer-to-member type. This is the offset within a class to some
+ particular data member. The only currently supported representation
+ uses an unbiased offset, with -1 representing NULL; this is used
+ by the Itanium C++ ABI (used by GCC on all platforms). */
+ TYPE_CODE_MEMBERPTR,
+
+ TYPE_CODE_REF, /* C++ Reference types */
+
+ TYPE_CODE_CHAR, /* *real* character type */
+
+ /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
+ (e.g. FORTRAN "logical" used as unsigned int). */
+ TYPE_CODE_BOOL,
+
+ /* Fortran */
+ TYPE_CODE_COMPLEX, /* Complex float */
+
+ TYPE_CODE_TYPEDEF,
+
+ TYPE_CODE_NAMESPACE, /* C++ namespace. */
+
+ TYPE_CODE_DECFLOAT, /* Decimal floating point. */
+
+ TYPE_CODE_MODULE, /* Fortran module. */
+
+ /* Internal function type. */
+ TYPE_CODE_INTERNAL_FUNCTION
+ };
/* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
#define TYPE_CODE_CLASS TYPE_CODE_STRUCT
-/* Some bits for the type's flags word. */
+/* Some constants representing each bit field in the main_type. See
+ the bit-field-specific macros, below, for documentation of each
+ constant in this enum. These enum values are only used with
+ init_type. Note that the values are chosen not to conflict with
+ type_instance_flag_value; this lets init_type error-check its
+ input. */
+
+enum type_flag_value
+{
+ TYPE_FLAG_UNSIGNED = (1 << 7),
+ TYPE_FLAG_NOSIGN = (1 << 8),
+ TYPE_FLAG_STUB = (1 << 9),
+ TYPE_FLAG_TARGET_STUB = (1 << 10),
+ TYPE_FLAG_STATIC = (1 << 11),
+ TYPE_FLAG_PROTOTYPED = (1 << 12),
+ TYPE_FLAG_INCOMPLETE = (1 << 13),
+ TYPE_FLAG_VARARGS = (1 << 14),
+ TYPE_FLAG_VECTOR = (1 << 15),
+ TYPE_FLAG_FIXED_INSTANCE = (1 << 16),
+ TYPE_FLAG_STUB_SUPPORTED = (1 << 17),
+ TYPE_FLAG_GNU_IFUNC = (1 << 18),
+
+ /* Used for error-checking. */
+ TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
+};
+
+/* Some bits for the type's instance_flags word. See the macros below
+ for documentation on each bit. Note that if you add a value here,
+ you must update the enum type_flag_value as well. */
+enum type_instance_flag_value
+{
+ TYPE_INSTANCE_FLAG_CONST = (1 << 0),
+ TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
+ TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
+ TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
+ TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
+ TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
+ TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
+};
/* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
- type is signed. */
+ type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
+
+#define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_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! */
-#define TYPE_FLAG_UNSIGNED (1 << 0)
+#define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
/* 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 *)). */
-#define TYPE_FLAG_STUB (1 << 2)
+#define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_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_stub_type. Currently only
- used for arrays, in which TYPE_LENGTH of the array gets set based
- on the TYPE_LENGTH of the target type. */
+ 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. */
-#define TYPE_FLAG_TARGET_STUB (1 << 3)
+#define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
-struct type
+/* Static type. If this is set, the corresponding type had
+ a static modifier.
+ Note: This may be unnecessary, since static data members
+ are indicated by other means (bitpos == -1). */
+
+#define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
+
+/* This is a function type which appears to have a prototype. We need
+ this for function calls in order to tell us if it's necessary to
+ coerce the args, or to just do the standard conversions. This is
+ used with a short field. */
+
+#define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
+
+/* This flag is used to indicate that processing for this type
+ is incomplete.
+
+ (Mostly intended for HP platforms, where class methods, for
+ instance, can be encountered before their classes in the debug
+ info; the incomplete type has to be marked so that the class and
+ the method can be assigned correct types.) */
+
+#define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
+
+/* FIXME drow/2002-06-03: Only used for methods, but applies as well
+ to functions. */
+
+#define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_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. */
+#define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
+
+/* 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. */
+
+#define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
+
+/* 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). */
+
+#define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
+
+/* Not textual. By default, GDB treats all single byte integers as
+ characters (or elements of strings) unless this flag is set. */
+
+#define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
+
+/* Used only for TYPE_CODE_FUNC where it specifies the real function
+ address is returned by this function call. TYPE_TARGET_TYPE determines the
+ final returned function type to be presented to user. */
+
+#define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
+
+/* Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
+ the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
+ owned by an architecture; TYPE_OBJFILE is NULL in this case. */
+
+#define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
+#define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
+#define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
+
+/* True if this type was declared using the "class" keyword. This is
+ only valid for C++ structure types, and only used for displaying
+ the type. If false, the structure was declared as a "struct". */
+
+#define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
+
+/* Constant type. If this is set, the corresponding type has a
+ const modifier. */
+
+#define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
+
+/* Volatile type. If this is set, the corresponding type has a
+ volatile modifier. */
+
+#define TYPE_VOLATILE(t) \
+ (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
+
+/* Instruction-space delimited type. This is for Harvard architectures
+ which have separate instruction and data address spaces (and perhaps
+ others).
+
+ GDB usually defines a flat address space that is a superset of the
+ architecture's two (or more) address spaces, but this is an extension
+ of the architecture's model.
+
+ If TYPE_FLAG_INST is set, an object of the corresponding type
+ resides in instruction memory, even if its address (in the extended
+ flat address space) does not reflect this.
+
+ Similarly, if TYPE_FLAG_DATA is set, then an object of the
+ corresponding type resides in the data memory space, even if
+ this is not indicated by its (flat address space) address.
+
+ If neither flag is set, the default space for functions / methods
+ is instruction space, and for data objects is data memory. */
+
+#define TYPE_CODE_SPACE(t) \
+ (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
+
+#define TYPE_DATA_SPACE(t) \
+ (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
+
+/* Address class flags. Some environments provide for pointers whose
+ size is different from that of a normal pointer or address types
+ where the bits are interpreted differently than normal addresses. The
+ TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific
+ ways to represent these different types of address classes. */
+#define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
+ & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
+#define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
+ & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
+#define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
+ (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
+#define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
+ & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
+
+/* Determine which field of the union main_type.fields[x].loc is used. */
+
+enum field_loc_kind
+ {
+ FIELD_LOC_KIND_BITPOS, /* bitpos */
+ FIELD_LOC_KIND_PHYSADDR, /* physaddr */
+ FIELD_LOC_KIND_PHYSNAME, /* physname */
+ FIELD_LOC_KIND_DWARF_BLOCK /* dwarf_block */
+ };
+
+/* A discriminant to determine which field in the main_type.type_specific
+ union is being used, if any.
+
+ For types such as TYPE_CODE_FLT or TYPE_CODE_FUNC, the use of this
+ discriminant is really redundant, as we know from the type code
+ which field is going to be used. As such, it would be possible to
+ reduce the size of this enum in order to save a bit or two for
+ other fields of struct main_type. But, since we still have extra
+ room , and for the sake of clarity and consistency, we treat all fields
+ of the union the same way. */
+
+enum type_specific_kind
+{
+ TYPE_SPECIFIC_NONE,
+ TYPE_SPECIFIC_CPLUS_STUFF,
+ TYPE_SPECIFIC_GNAT_STUFF,
+ TYPE_SPECIFIC_FLOATFORMAT,
+ TYPE_SPECIFIC_FUNC
+};
+
+/* 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 flag_unsigned : 1;
+ unsigned int flag_nosign : 1;
+ unsigned int flag_stub : 1;
+ unsigned int flag_target_stub : 1;
+ unsigned int flag_static : 1;
+ unsigned int flag_prototyped : 1;
+ unsigned int flag_incomplete : 1;
+ unsigned int flag_varargs : 1;
+ unsigned int flag_vector : 1;
+ unsigned int flag_stub_supported : 1;
+ unsigned int flag_gnu_ifunc : 1;
+ unsigned int flag_fixed_instance : 1;
+ unsigned int flag_objfile_owned : 1;
+ /* True if this type was declared with "class" rather than
+ "struct". */
+ unsigned int flag_declared_class : 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;
+
+ /* Number of fields described for this type. This field appears at
+ this location because it packs nicely here. */
+
+ short nfields;
+
+ /* Field number of the virtual function table pointer in
+ VPTR_BASETYPE. If -1, we were unable to find the virtual
+ function table pointer in initial symbol reading, and
+ get_vptr_fieldno should be called to find it if possible.
+ get_vptr_fieldno will update this field if possible.
+ Otherwise the value is left at -1.
- /* Code for kind of type */
+ Unused if this type does not have virtual functions.
- enum type_code code;
+ This field appears at this location because it packs nicely here. */
+
+ short vptr_fieldno;
/* Name of this type, or NULL if none.
This is used for printing only, except by poorly designed C++ code.
- For looking up a name, look for a symbol in the VAR_NAMESPACE. */
+ For looking up a name, look for a symbol in the VAR_DOMAIN. */
char *name;
with this feature.
This is used for printing only, except by poorly designed C++ code.
- For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
+ For looking up a name, look for a symbol in the STRUCT_DOMAIN.
One more legitimate use is that if TYPE_FLAG_STUB is set, this is
the name to use to look for definitions in other files. */
char *tag_name;
- /* Length, in units of TARGET_CHAR_BIT bits,
- of storage for a value of this type */
-
- unsigned length;
-
- /* FIXME, these should probably be restricted to a Fortran-specific
- field in some fashion. */
-#define BOUND_CANNOT_BE_DETERMINED 5
-#define BOUND_BY_REF_ON_STACK 4
-#define BOUND_BY_VALUE_ON_STACK 3
-#define BOUND_BY_REF_IN_REG 2
-#define BOUND_BY_VALUE_IN_REG 1
-#define BOUND_SIMPLE 0
- int upper_bound_type;
- int lower_bound_type;
-
/* Every type is now associated with a particular objfile, and the
- type is allocated on the type_obstack for that objfile. One problem
+ 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
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. */
+ for now. */
- struct objfile *objfile;
+ union type_owner
+ {
+ struct objfile *objfile;
+ struct gdbarch *gdbarch;
+ } 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 *target_type;
- /* 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;
-
- /* Type that is a function returning this type.
- NULL if no such function type is known here.
- The debugger may add the address of such a type
- if it has to construct one later. */
-
- struct type *function_type;
-
- /* Flags about this type. */
-
- short flags;
-
- /* Number of fields described for this type */
-
- short nfields;
-
/* 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.
because we can allocate the space for a type before
we know what to put in it. */
- struct field
+ union
+ {
+ struct field
{
+ union field_location
+ {
+ /* Position of this field, counting in bits from start of
+ containing structure. For gdbarch_bits_big_endian=1
+ targets, it is the bit offset to the MSB. For
+ gdbarch_bits_big_endian=0 targets, it is the bit offset to
+ the LSB. For a range bound or enum value, this is the
+ value itself. */
+
+ int bitpos;
- /* Position of this field, counting in bits from start of
- containing structure. For a function type, this is the
- position in the argument list of this argument.
- For a range bound or enum value, this is the value itself.
- (FIXME: What about ranges larger than host int size?)
- For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
- For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
+ /* 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. */
- int bitpos;
+ CORE_ADDR physaddr;
+ const char *physname;
+
+ /* The field location can be computed by evaluating the following DWARF
+ block. Its DATA is allocated on objfile_obstack - no CU load is
+ needed to access it. */
+
+ struct dwarf2_locexpr_baton *dwarf_block;
+ }
+ loc;
+
+ /* For a function or member type, this is 1 if the argument is marked
+ artificial. Artificial arguments should not be shown to the
+ user. For TYPE_CODE_RANGE it is set if the specific bound is not
+ defined. */
+ unsigned int artificial : 1;
+
+ /* Discriminant for union field_location. */
+ ENUM_BITFIELD(field_loc_kind) loc_kind : 2;
/* 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. */
- /* FIXME: This is abused by TYPE_FIELD_STATIC_PHYSNAME to contain
- a pointer, so it has to be long. */
- long bitsize;
+ unsigned int bitsize : 29;
- /* In a struct or enum type, type of this field.
- In a function type, type of this argument.
+ /* In a struct or union type, type of this field.
+ In a function or member type, type of this argument.
In an array type, the domain-type of the array. */
struct type *type;
/* Name of field, value or argument.
- NULL for range bounds and array domains. */
+ NULL for range bounds, array domains, and member function
+ arguments. */
char *name;
-
} *fields;
- /* For types with virtual functions, VPTR_BASETYPE is the base class which
- defined the virtual function table pointer.
+ /* Union member used for range types. */
- For types that are pointer to member types, VPTR_BASETYPE
- is the type that this pointer is a member of.
+ struct range_bounds
+ {
+ /* Low bound of range. */
- Unused otherwise. */
+ LONGEST low;
- struct type *vptr_basetype;
+ /* High bound of range. */
- /* Field number of the virtual function table pointer in
- VPTR_BASETYPE. If -1, we were unable to find the virtual
- function table pointer in initial symbol reading, and
- fill_in_vptr_fieldno should be called to find it if possible.
+ LONGEST high;
- Unused if this type does not have virtual functions. */
+ /* Flags indicating whether the values of low and high are
+ valid. When true, the respective range value is
+ undefined. Currently used only for FORTRAN arrays. */
+
+ char low_undefined;
+ char high_undefined;
- int vptr_fieldno;
+ } *bounds;
- /* Slot to point to additional language-specific fields of this type. */
+ } flds_bnds;
- union type_specific
- {
+ /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
+ is the base class which defined the virtual function table pointer.
- /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC. */
+ For types that are pointer to member types (TYPE_CODE_METHODPTR,
+ TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
+ is a member of.
- struct type **arg_types;
+ For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
+ type that contains the method.
- /* 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. */
+ Unused otherwise. */
- struct cplus_struct_type *cplus_stuff;
+ struct type *vptr_basetype;
- } type_specific;
-};
+ /* Slot to point to additional language-specific fields of this type. */
-#define NULL_TYPE ((struct type *) 0)
+ 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. */
-/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
- nodes. */
+ struct cplus_struct_type *cplus_stuff;
-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). I think only the `type' field of such a field has
- any meaning. */
+ /* GNAT_STUFF is for types for which the GNAT Ada compiler
+ provides additional information. */
+ struct gnat_aux_type *gnat_stuff;
+
+ /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
+ floatformat objects that describe the floating-point value
+ that resides within the type. The first is for big endian
+ targets and the second is for little endian targets. */
- short n_baseclasses;
+ const struct floatformat **floatformat;
- /* Number of methods with unique names. All overloaded methods with
- the same name count only once. */
+ /* For TYPE_CODE_FUNC types, */
+ struct func_type *func_stuff;
+ } type_specific;
+};
+
+/* A ``struct type'' describes a particular instance of a type, with
+ some particular qualification. */
+struct type
+{
+ /* 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. */
- short nfn_fields;
+ struct type *pointer_type;
- /* Number of methods described for this type, not including the
- methods that it derives from. */
+ /* C++: also need a reference type. */
- int nfn_fields_total;
+ struct type *reference_type;
- /* For derived classes, the number of base classes is given by n_baseclasses
- and virtual_field_bits is a bit vector containing one bit per base class.
- If the base class is virtual, the corresponding bit will be set.
- I.E, given:
+ /* 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;
+
+ /* 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. */
+ int instance_flags;
+
+ /* Length of storage for a value of this type. This is what
+ sizeof(type) would return; use it for address arithmetic,
+ memory reads and writes, etc. This size includes padding. For
+ example, an i386 extended-precision floating point value really
+ only occupies ten bytes, but most ABI's declare its size to be
+ 12 bytes, to preserve alignment. A `struct type' representing
+ such a floating-point type would have a `length' value of 12,
+ even though the last two bytes are unused.
+
+ There's a bit of a host/target mess here, if you're concerned
+ about machines whose bytes aren't eight bits long, or who don't
+ have byte-addressed memory. Various places pass this to memcpy
+ and such, meaning it must be in units of host bytes. Various
+ other places expect they can calculate addresses by adding it
+ and such, meaning it must be in units of target bytes. For
+ some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
+ and TARGET_CHAR_BIT will be (say) 32, this is a problem.
+
+ One fix would be to make this field in bits (requiring that it
+ always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
+ the other choice would be to make it consistently in units of
+ HOST_CHAR_BIT. However, this would still fail to address
+ machines based on a ternary or decimal representation. */
+
+ unsigned length;
- class A{};
- class B{};
- class C : public B, public virtual A {};
+ /* Core type, shared by a group of qualified types. */
+ struct main_type *main_type;
+};
- B is a baseclass of C; A is a virtual baseclass for C.
- This is a C++ 2.0 language feature. */
+#define NULL_TYPE ((struct type *) 0)
- B_TYPE *virtual_field_bits;
+/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
+ nodes. */
- /* For classes with private fields, the number of fields is given by
- nfields and private_field_bits is a bit vector containing one bit
- per field.
- If the field is private, the corresponding bit will be set. */
+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). I think only the `type' field of such a field has
+ any meaning. */
- B_TYPE *private_field_bits;
+ short n_baseclasses;
- /* For classes with protected fields, the number of fields is given by
- nfields and protected_field_bits is a bit vector containing one bit
- per field.
- If the field is private, the corresponding bit will be set. */
+ /* Number of methods with unique names. All overloaded methods with
+ the same name count only once. */
- B_TYPE *protected_field_bits;
+ short nfn_fields;
- /* for classes with fields to be ignored, either this is optimized out
- or this field has length 0 */
+ /* Number of methods described for this type, not including the
+ methods that it derives from. */
- B_TYPE *ignore_field_bits;
+ short nfn_fields_total;
- /* 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.
+ /* Number of template arguments. */
+ unsigned short n_template_arguments;
- fn_fieldlists points to an array of nfn_fields of these. */
+ /* 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;
- struct fn_fieldlist
- {
+ /* Non-zero if this type came from a Java CU. */
+ unsigned int is_java : 1;
- /* The overloaded name. */
+ /* For derived classes, the number of base classes is given by
+ n_baseclasses and virtual_field_bits is a bit vector containing
+ one bit per base class. If the base class is virtual, the
+ corresponding bit will be set.
+ I.E, given:
- char *name;
+ class A{};
+ class B{};
+ class C : public B, public virtual A {};
- /* The number of methods with this name. */
+ B is a baseclass of C; A is a virtual baseclass for C.
+ This is a C++ 2.0 language feature. */
- int length;
+ B_TYPE *virtual_field_bits;
- /* The list of methods. */
+ /* For classes with private fields, the number of fields is given by
+ nfields and private_field_bits is a bit vector containing one bit
+ per field.
+ If the field is private, the corresponding bit will be set. */
- struct fn_field
- {
+ B_TYPE *private_field_bits;
- /* 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). */
+ /* For classes with protected fields, the number of fields is given by
+ nfields and protected_field_bits is a bit vector containing one bit
+ per field.
+ If the field is private, the corresponding bit will be set. */
- /* 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. */
+ B_TYPE *protected_field_bits;
- char *physname;
+ /* For classes with fields to be ignored, either this is optimized out
+ or this field has length 0. */
- /* The return value of the method */
+ B_TYPE *ignore_field_bits;
- struct type *type;
+ /* 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.
- /* The argument list. Only valid if is_stub is clear. Contains
- the type of each argument, including `this', and ending with
- a NULL pointer after the last argument. Should not contain
- a `this' pointer for static member functions. */
+ fn_fieldlists points to an array of nfn_fields of these. */
- struct type **args;
+ struct fn_fieldlist
+ {
- /* For virtual functions.
- First baseclass that defines this virtual function. */
+ /* The overloaded name. */
- struct type *fcontext;
+ char *name;
- /* Attributes. */
+ /* The number of methods with this name. */
- unsigned int is_const : 1;
- unsigned int is_volatile : 1;
- unsigned int is_private : 1;
- unsigned int is_protected : 1;
+ int length;
- /* A stub method only has some fields valid (but they are enough
- to reconstruct the rest of the fields). */
- unsigned int is_stub : 1;
+ /* The list of methods. */
- /* Unused. */
- unsigned int dummy : 3;
+ struct fn_field
+ {
- /* Index into that baseclass's virtual function table,
- minus 2; else if static: VOFFSET_STATIC; else: 0. */
+ /* 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). */
- unsigned int voffset : 24;
+ /* 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. */
-# define VOFFSET_STATIC 1
+ const char *physname;
- } *fn_fields;
+ /* The function type for the method.
+ (This comment used to say "The return value of the method",
+ but that's wrong. The function type
+ is expected here, i.e. something with TYPE_CODE_FUNC,
+ and *not* the return-value type). */
- } *fn_fieldlists;
+ struct type *type;
-};
+ /* For virtual functions.
+ First baseclass that defines this virtual function. */
+
+ struct type *fcontext;
+
+ /* Attributes. */
+
+ unsigned int is_const:1;
+ unsigned int is_volatile:1;
+ unsigned int is_private:1;
+ unsigned int is_protected:1;
+ unsigned int is_public:1;
+ unsigned int is_abstract:1;
+ unsigned int is_static:1;
+ unsigned int is_final:1;
+ unsigned int is_synchronized:1;
+ unsigned int is_native:1;
+ unsigned int is_artificial:1;
+
+ /* A stub method only has some fields valid (but they are enough
+ to reconstruct the rest of the fields). */
+ unsigned int is_stub:1;
+
+ /* Unused. */
+ unsigned int dummy:4;
+
+ /* Index into that baseclass's virtual function table,
+ minus 2; else if static: VOFFSET_STATIC; else: 0. */
+
+ unsigned int voffset:16;
+
+#define VOFFSET_STATIC 1
+
+ }
+ *fn_fields;
+
+ }
+ *fn_fieldlists;
+
+ /* Pointer to information about enclosing scope, if this is a
+ local type. If it is not a local type, this is NULL. */
+ struct local_type_info
+ {
+ char *file;
+ int line;
+ }
+ *localtype_ptr;
+
+ /* typedefs defined inside this class. TYPEDEF_FIELD points to an array of
+ TYPEDEF_FIELD_COUNT elements. */
+ struct typedef_field
+ {
+ /* Unqualified name to be prefixed by owning class qualified name. */
+ const char *name;
+
+ /* Type this typedef named NAME represents. */
+ struct type *type;
+ }
+ *typedef_field;
+ unsigned typedef_field_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 in computing virtual base list. */
+struct vbase
+ {
+ struct type *vbasetype; /* pointer to virtual base */
+ struct vbase *next; /* next in chain */
+ };
+
+/* 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;
+ };
+
+/* Struct used for ranking a function for overload resolution. */
+struct badness_vector
+ {
+ int length;
+ struct rank *rank;
+ };
+
+/* 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 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. */
+ unsigned calling_convention;
+
+ /* Only those DW_TAG_GNU_call_site's in this function that have
+ DW_AT_GNU_tail_call set are linked in this list. Function without its
+ tail call list complete (DW_AT_GNU_all_tail_call_sites or its superset
+ DW_AT_GNU_all_call_sites) has TAIL_CALL_LIST NULL, even if some
+ DW_TAG_GNU_call_site's exist in such function. */
+ struct call_site *tail_call_list;
+ };
+
+/* A place where a function gets called from, represented by
+ DW_TAG_GNU_call_site. It can be looked up from symtab->call_site_htab. */
+
+struct call_site
+ {
+ /* Address of the first instruction after this call. It must be the first
+ field as we overload core_addr_hash and core_addr_eq for it. */
+ CORE_ADDR pc;
+
+ /* List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
+ struct call_site *tail_call_next;
+
+ /* Describe DW_AT_GNU_call_site_target. Missing attribute uses
+ FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
+ struct
+ {
+ union field_location loc;
+
+ /* Discriminant for union field_location. */
+ ENUM_BITFIELD(field_loc_kind) loc_kind : 2;
+ }
+ target;
+
+ /* Size of the PARAMETER array. */
+ unsigned parameter_count;
+
+ /* CU of the function where the call is located. It gets used for DWARF
+ blocks execution in the parameter array below. */
+ struct dwarf2_per_cu_data *per_cu;
+
+ /* Describe DW_TAG_GNU_call_site's DW_TAG_formal_parameter. */
+ struct call_site_parameter
+ {
+ /* DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX as DWARF
+ register number, for register passed parameters. If -1 then use
+ fb_offset. */
+ int dwarf_reg;
+
+ /* Offset from the callee's frame base, for stack passed parameters.
+ This equals offset from the caller's stack pointer. Valid only if
+ DWARF_REGNUM is -1. */
+ CORE_ADDR fb_offset;
+
+ /* DW_TAG_formal_parameter's DW_AT_GNU_call_site_value. It is never
+ NULL. */
+ const gdb_byte *value;
+ size_t value_size;
+
+ /* DW_TAG_formal_parameter's DW_AT_GNU_call_site_data_value. It may be
+ NULL if not provided by DWARF. */
+ const gdb_byte *data_value;
+ size_t data_value_size;
+ }
+ parameter[1];
+ };
/* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
- this shared static structure. */
+ this shared static structure. */
extern const struct cplus_struct_type cplus_struct_default;
-extern void
-allocate_cplus_struct_type PARAMS ((struct type *));
+extern void allocate_cplus_struct_type (struct type *);
#define INIT_CPLUS_SPECIFIC(type) \
- (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
+ (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_CPLUS_SPECIFIC(type) != &cplus_struct_default)
-#define TYPE_NAME(thistype) (thistype)->name
-#define TYPE_TAG_NAME(type) ((type)->tag_name)
-#define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
+#define HAVE_CPLUS_STRUCT(type) \
+ (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
+ && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
+
+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)
+
+#define INIT_FUNC_SPECIFIC(type) \
+ (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
+ TYPE_MAIN_TYPE (type)->type_specific.func_stuff \
+ = TYPE_ZALLOC (type, \
+ sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
+
+#define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
+#define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
+#define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
+#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
+#define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
-#define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
+#define TYPE_CHAIN(thistype) (thistype)->chain
+/* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
+ But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
+ so you only have to call check_typedef once. Since allocate_value
+ calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
#define TYPE_LENGTH(thistype) (thistype)->length
-#define TYPE_OBJFILE(thistype) (thistype)->objfile
-#define TYPE_FLAGS(thistype) (thistype)->flags
-#define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
-#define TYPE_CODE(thistype) (thistype)->code
-#define TYPE_NFIELDS(thistype) (thistype)->nfields
-#define TYPE_FIELDS(thistype) (thistype)->fields
+/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
+ type, you need to do TYPE_CODE (check_type (this_type)). */
+#define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
+#define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
+#define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
-#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
-#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
-/* If TYPE_DUMMY_RANGE is true for a range type, it was allocated
- by force_to_range_type. */
-#define TYPE_DUMMY_RANGE(type) ((type)->vptr_fieldno)
+#define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
+#define TYPE_LOW_BOUND(range_type) TYPE_RANGE_DATA(range_type)->low
+#define TYPE_HIGH_BOUND(range_type) TYPE_RANGE_DATA(range_type)->high
+#define TYPE_LOW_BOUND_UNDEFINED(range_type) \
+ TYPE_RANGE_DATA(range_type)->low_undefined
+#define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
+ TYPE_RANGE_DATA(range_type)->high_undefined
-/* Moto-specific stuff for FORTRAN arrays */
+/* Moto-specific stuff for FORTRAN arrays. */
-#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
-#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
+#define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
+ TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
+#define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
+ TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
- (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
+ (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
- (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
+ (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
/* C++ */
-#define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
-#define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
-#define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
+#define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
+#define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
+#define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
#define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
#define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
-#define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
-#define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
-#define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
-#define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
+#define TYPE_SPECIFIC_FIELD(thistype) \
+ TYPE_MAIN_TYPE(thistype)->type_specific_field
+#define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
+/* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
+ where we're trying to print an Ada array using the C language.
+ In that case, there is no "cplus_stuff", but the C language assumes
+ 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_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_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
+#define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
-#define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
-#define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
-#define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
-#define BASETYPE_VIA_VIRTUAL(thistype, index) \
- B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
+#define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
+#define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
+#define BASETYPE_VIA_PUBLIC(thistype, index) \
+ ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
+#define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
+#define TYPE_CPLUS_REALLY_JAVA(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_java
-#define TYPE_FIELD(thistype, n) (thistype)->fields[n]
-#define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
-#define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
-#define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
-#define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
-#define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
-#define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
+#define BASETYPE_VIA_VIRTUAL(thistype, index) \
+ (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
+ : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
+
+#define FIELD_TYPE(thisfld) ((thisfld).type)
+#define FIELD_NAME(thisfld) ((thisfld).name)
+#define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
+#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
+#define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
+#define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
+#define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
+#define SET_FIELD_BITPOS(thisfld, bitpos) \
+ (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
+ FIELD_BITPOS (thisfld) = (bitpos))
+#define SET_FIELD_PHYSNAME(thisfld, name) \
+ (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
+ FIELD_STATIC_PHYSNAME (thisfld) = (name))
+#define SET_FIELD_PHYSADDR(thisfld, addr) \
+ (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
+ FIELD_STATIC_PHYSADDR (thisfld) = (addr))
+#define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
+ (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
+ FIELD_DWARF_BLOCK (thisfld) = (addr))
+#define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
+#define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
+
+#define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
+#define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
+#define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
+#define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
+#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
+#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
+#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
+#define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
+#define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
+#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
+#define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
#define TYPE_FIELD_PRIVATE_BITS(thistype) \
TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
: B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
#define TYPE_FIELD_VIRTUAL(thistype, n) \
- B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
-
-#define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
-#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
+ (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
+ : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
#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_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) TYPE_ARG_TYPES ((thisfn)[n].type)
+#define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
#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].is_private)
#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
+#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
+#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
+#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
+#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
+#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
+#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
+#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
#define TYPE_FN_FIELD_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)
-extern struct type *builtin_type_void;
-extern struct type *builtin_type_char;
-extern struct type *builtin_type_short;
-extern struct type *builtin_type_int;
-extern struct type *builtin_type_long;
-extern struct type *builtin_type_signed_char;
-extern struct type *builtin_type_unsigned_char;
-extern struct type *builtin_type_unsigned_short;
-extern struct type *builtin_type_unsigned_int;
-extern struct type *builtin_type_unsigned_long;
-extern struct type *builtin_type_float;
-extern struct type *builtin_type_double;
-extern struct type *builtin_type_long_double;
-extern struct type *builtin_type_complex;
-extern struct type *builtin_type_double_complex;
-extern struct type *builtin_type_string;
-
-/* This type represents a type that was unrecognized in symbol
- read-in. */
-
-extern struct type *builtin_type_error;
-
-extern struct type *builtin_type_long_long;
-extern struct type *builtin_type_unsigned_long_long;
-
-/* Modula-2 types */
-
-extern struct type *builtin_type_m2_char;
-extern struct type *builtin_type_m2_int;
-extern struct type *builtin_type_m2_card;
-extern struct type *builtin_type_m2_real;
-extern struct type *builtin_type_m2_bool;
-
-/* Chill types */
-
-extern struct type *builtin_type_chill_bool;
-extern struct type *builtin_type_chill_char;
-extern struct type *builtin_type_chill_long;
-extern struct type *builtin_type_chill_ulong;
-extern struct type *builtin_type_chill_real;
-
-/* Fortran (F77) types */
-
-extern struct type *builtin_type_f_character;
-extern struct type *builtin_type_f_integer;
-extern struct type *builtin_type_f_logical;
-extern struct type *builtin_type_f_logical_s1;
-extern struct type *builtin_type_f_logical_s2;
-extern struct type *builtin_type_f_integer;
-extern struct type *builtin_type_f_integer_s2;
-extern struct type *builtin_type_f_real;
-extern struct type *builtin_type_f_real_s8;
-extern struct type *builtin_type_f_real_s16;
-extern struct type *builtin_type_f_complex_s8;
-extern struct type *builtin_type_f_complex_s16;
-extern struct type *builtin_type_f_complex_s32;
-extern struct type *builtin_type_f_void;
-
-/* Maximum and minimum values of built-in types */
-
-#define MAX_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
- : MAX_OF_SIZE(TYPE_LENGTH(t))
-
-#define MIN_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
- : MIN_OF_SIZE(TYPE_LENGTH(t))
+#define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
+#define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
+#define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
+
+#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_IS_OPAQUE(thistype) \
+ (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
+ || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
+ && (TYPE_NFIELDS (thistype) == 0) \
+ && (!HAVE_CPLUS_STRUCT (thistype) \
+ || TYPE_NFN_FIELDS (thistype) == 0) \
+ && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
+
+/* 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 (type) ? TYPE_NAME (type) : _("<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) ? TYPE_NAME (type) : _("<error type>"))
+
+struct builtin_type
+{
+ /* Integral types. */
+
+ /* Implicit size/sign (based on the architecture's ABI). */
+ struct type *builtin_void;
+ struct type *builtin_char;
+ struct type *builtin_short;
+ struct type *builtin_int;
+ struct type *builtin_long;
+ struct type *builtin_signed_char;
+ struct type *builtin_unsigned_char;
+ struct type *builtin_unsigned_short;
+ struct type *builtin_unsigned_int;
+ struct type *builtin_unsigned_long;
+ struct type *builtin_float;
+ struct type *builtin_double;
+ struct type *builtin_long_double;
+ struct type *builtin_complex;
+ struct type *builtin_double_complex;
+ struct type *builtin_string;
+ struct type *builtin_bool;
+ struct type *builtin_long_long;
+ struct type *builtin_unsigned_long_long;
+ struct type *builtin_decfloat;
+ struct type *builtin_decdouble;
+ struct type *builtin_declong;
+
+ /* "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;
+ struct type *builtin_true_unsigned_char;
+
+ /* 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;
+ struct type *builtin_int8;
+ struct type *builtin_uint8;
+ struct type *builtin_int16;
+ struct type *builtin_uint16;
+ struct type *builtin_int32;
+ struct type *builtin_uint32;
+ struct type *builtin_int64;
+ struct type *builtin_uint64;
+ struct type *builtin_int128;
+ struct type *builtin_uint128;
+
+ /* Wide character types. */
+ struct type *builtin_char16;
+ struct type *builtin_char32;
+
+ /* 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;
+
+ /* `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;
+
+ /* `function returning pointer to function (returning void)' type.
+ The final void return type is not significant for it. */
+ struct type *builtin_func_func;
+
+
+ /* Special-purpose types. */
+
+ /* This type is used to represent a GDB internal function. */
+ struct type *internal_fn;
+};
+
+/* Return the type table for the specified architecture. */
+extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
+
+
+/* Per-objfile types used by symbol readers. */
+
+struct objfile_type
+{
+ /* Basic types based on the objfile architecture. */
+ struct type *builtin_void;
+ struct type *builtin_char;
+ struct type *builtin_short;
+ struct type *builtin_int;
+ struct type *builtin_long;
+ struct type *builtin_long_long;
+ struct type *builtin_signed_char;
+ struct type *builtin_unsigned_char;
+ struct type *builtin_unsigned_short;
+ struct type *builtin_unsigned_int;
+ struct type *builtin_unsigned_long;
+ struct type *builtin_unsigned_long_long;
+ struct type *builtin_float;
+ struct type *builtin_double;
+ struct type *builtin_long_double;
+
+ /* This type is used to represent symbol addresses. */
+ struct type *builtin_core_addr;
+
+ /* This type represents a type that was unrecognized in symbol read-in. */
+ struct type *builtin_error;
+
+ /* Types used for symbols with no debug information. */
+ struct type *nodebug_text_symbol;
+ struct type *nodebug_text_gnu_ifunc_symbol;
+ struct type *nodebug_got_plt_symbol;
+ struct type *nodebug_data_symbol;
+ struct type *nodebug_unknown_symbol;
+ struct type *nodebug_tls_symbol;
+};
+
+/* Return the type table for the specified objfile. */
+extern const struct objfile_type *objfile_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_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_ia64_quad[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];
+
/* 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 type_obstack, then the space for data
- associated with that type will also be allocated on the type_obstack.
+ was used to allocate the space for the type structure itself. I.e.
+ if the type is on an objfile's objfile_obstack, then the space for data
+ associated with that type will also be allocated on the objfile_obstack.
If the type is not associated with any particular objfile (such as
builtin types), then the data space will be allocated with xmalloc,
- the same as for the type structure. */
+ the same as for the type structure. */
#define TYPE_ALLOC(t,size) \
- (TYPE_OBJFILE (t) != NULL \
- ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
+ (TYPE_OBJFILE_OWNED (t) \
+ ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
: xmalloc (size))
-extern struct type *
-alloc_type PARAMS ((struct objfile *));
+#define TYPE_ZALLOC(t,size) \
+ (TYPE_OBJFILE_OWNED (t) \
+ ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
+ 0, size) \
+ : xzalloc (size))
+
+/* Use alloc_type to allocate a type owned by an objfile.
+ Use alloc_type_arch to allocate a type owned by an architecture.
+ Use alloc_type_copy to allocate a type with the same owner as a
+ pre-existing template type, no matter whether objfile or gdbarch. */
+extern struct type *alloc_type (struct objfile *);
+extern struct type *alloc_type_arch (struct gdbarch *);
+extern struct type *alloc_type_copy (const struct type *);
+
+/* 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. */
+extern struct gdbarch *get_type_arch (const struct type *);
+
+/* Helper function to construct objfile-owned types. */
+extern struct type *init_type (enum type_code, int, int, char *,
+ struct objfile *);
+
+/* Helper functions to construct architecture-owned types. */
+extern struct type *arch_type (struct gdbarch *, enum type_code, int, char *);
+extern struct type *arch_integer_type (struct gdbarch *, int, int, char *);
+extern struct type *arch_character_type (struct gdbarch *, int, int, char *);
+extern struct type *arch_boolean_type (struct gdbarch *, int, int, char *);
+extern struct type *arch_float_type (struct gdbarch *, int, char *,
+ const struct floatformat **);
+extern struct type *arch_complex_type (struct gdbarch *, char *,
+ struct type *);
+
+/* 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,
+ char *name, enum type_code code);
+extern void append_composite_type_field (struct type *t, char *name,
+ struct type *field);
+extern void append_composite_type_field_aligned (struct type *t,
+ char *name,
+ struct type *field,
+ int alignment);
+struct field *append_composite_type_field_raw (struct type *t, char *name,
+ struct type *field);
+
+/* Helper functions to construct a bit flags type. An initially empty
+ type is created using arch_flag_type(). Flags are then added using
+ append_flag_type_flag(). */
+extern struct type *arch_flags_type (struct gdbarch *gdbarch,
+ char *name, int length);
+extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
+
+extern void make_vector_type (struct type *array_type);
+extern struct type *init_vector_type (struct type *elt_type, int n);
+
+extern struct type *lookup_reference_type (struct type *);
-extern struct type *
-init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
+extern struct type *make_reference_type (struct type *, struct type **);
-extern struct type *
-lookup_reference_type PARAMS ((struct type *));
+extern struct type *make_cv_type (int, int, struct type *, struct type **);
-extern struct type *
-make_reference_type PARAMS ((struct type *, struct type **));
+extern void replace_type (struct type *, struct type *);
-extern struct type *
-lookup_member_type PARAMS ((struct type *, struct type *));
+extern int address_space_name_to_int (struct gdbarch *, char *);
-extern void
-smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
- struct type **));
+extern const char *address_space_int_to_name (struct gdbarch *, int);
-extern void
-smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
+extern struct type *make_type_with_address_space (struct type *type,
+ int space_identifier);
-extern struct type *
-allocate_stub_method PARAMS ((struct type *));
+extern struct type *lookup_memberptr_type (struct type *, struct type *);
-extern char *
-type_name_no_tag PARAMS ((const struct type *));
+extern struct type *lookup_methodptr_type (struct type *);
-extern struct type *
-lookup_struct_elt_type PARAMS ((struct type *, char *, int));
+extern void smash_to_method_type (struct type *type, struct type *domain,
+ struct type *to_type, struct field *args,
+ int nargs, int varargs);
-extern struct type *
-make_pointer_type PARAMS ((struct type *, struct type **));
+extern void smash_to_memberptr_type (struct type *, struct type *,
+ struct type *);
-extern struct type *
-lookup_pointer_type PARAMS ((struct type *));
+extern void smash_to_methodptr_type (struct type *, struct type *);
-extern struct type *
-make_function_type PARAMS ((struct type *, struct type **));
+extern struct type *allocate_stub_method (struct type *);
-extern struct type *
-lookup_function_type PARAMS ((struct type *));
+extern char *type_name_no_tag (const struct type *);
-extern struct type *
-create_range_type PARAMS ((struct type *, struct type *, int, int));
+extern const char *type_name_no_tag_or_error (struct type *type);
-extern struct type *
-create_array_type PARAMS ((struct type *, struct type *, struct type *));
+extern struct type *lookup_struct_elt_type (struct type *, char *, int);
-extern struct type *
-create_string_type PARAMS ((struct type *, struct type *));
+extern struct type *make_pointer_type (struct type *, struct type **);
-extern struct type *f77_create_literal_string_type PARAMS ((struct type *,
- struct type *));
+extern struct type *lookup_pointer_type (struct type *);
-extern struct type *create_set_type PARAMS ((struct type *, struct type *));
+extern struct type *make_function_type (struct type *, struct type **);
-extern struct type *f77_create_literal_complex_type PARAMS ((struct type *,
- struct type *));
+extern struct type *lookup_function_type (struct type *);
-extern struct type *
-lookup_unsigned_typename PARAMS ((char *));
+extern struct type *create_range_type (struct type *, struct type *, LONGEST,
+ LONGEST);
-extern struct type *
-lookup_signed_typename PARAMS ((char *));
+extern struct type *create_array_type (struct type *, struct type *,
+ struct type *);
+extern struct type *lookup_array_range_type (struct type *, int, int);
-extern void
-check_stub_type PARAMS ((struct type *));
+extern struct type *create_string_type (struct type *, struct type *,
+ struct type *);
+extern struct type *lookup_string_range_type (struct type *, int, int);
-extern void
-check_stub_method PARAMS ((struct type *, int, int));
+extern struct type *create_set_type (struct type *, struct type *);
-extern struct type *
-lookup_primitive_typename PARAMS ((char *));
+extern struct type *lookup_unsigned_typename (const struct language_defn *,
+ struct gdbarch *,char *);
-extern char *
-gdb_mangle_name PARAMS ((struct type *, int, int));
+extern struct type *lookup_signed_typename (const struct language_defn *,
+ struct gdbarch *,char *);
-extern struct type *
-builtin_type PARAMS ((char **));
+extern struct type *check_typedef (struct type *);
-extern struct type *
-lookup_typename PARAMS ((char *, struct block *, int));
+#define CHECK_TYPEDEF(TYPE) \
+ do { \
+ (TYPE) = check_typedef (TYPE); \
+ } while (0)
-extern struct type *
-lookup_template_type PARAMS ((char *, struct type *, struct block *));
+extern void check_stub_method_group (struct type *, int);
-extern struct type *
-lookup_fundamental_type PARAMS ((struct objfile *, int));
+extern char *gdb_mangle_name (struct type *, int, int);
-extern void
-fill_in_vptr_fieldno PARAMS ((struct type *));
+extern struct type *lookup_typename (const struct language_defn *,
+ struct gdbarch *, const char *,
+ const struct block *, int);
-#if MAINTENANCE_CMDS
-extern void recursive_dump_type PARAMS ((struct type *, int));
-#endif
+extern struct type *lookup_template_type (char *, struct type *,
+ struct block *);
+
+extern int get_vptr_fieldno (struct type *, struct type **);
+
+extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
+
+extern int get_array_bounds (struct type *type, LONGEST *low_bound,
+ LONGEST *high_bound);
+
+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 */
+
+#define LENGTH_MATCH(bv) ((bv)->rank[0])
+
+/* Badness if parameter list length doesn't match arg list length. */
+extern const struct rank LENGTH_MISMATCH_BADNESS;
+
+/* 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 of pointer to boolean. */
+extern const struct rank BOOL_PTR_CONVERSION_BADNESS;
+/* Badness of converting derived to base class. */
+extern const struct rank BASE_CONVERSION_BADNESS;
+/* Badness of converting from non-reference to reference. */
+extern const struct rank REFERENCE_CONVERSION_BADNESS;
+/* Badness of converting integer 0 to NULL pointer. */
+extern const struct rank NULL_POINTER_CONVERSION;
+
+/* Non-standard conversions allowed by the debugger */
+/* Converting a pointer to an int is usually OK. */
+extern const struct rank NS_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 (struct badness_vector *, struct badness_vector *);
+
+extern struct badness_vector *rank_function (struct type **, int,
+ struct value **, int);
+
+extern struct rank rank_one_type (struct type *, struct type *,
+ struct value *);
+
+extern void recursive_dump_type (struct type *, int);
+
+extern int field_is_static (struct field *);
/* printcmd.c */
-extern void
-print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
+extern void print_scalar_formatted (const void *, 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_scalar_type_recursive (struct type *);
+
+extern void maintenance_print_type (char *, int);
+
+extern htab_t create_copied_types_hash (struct objfile *objfile);
-extern int can_dereference PARAMS ((struct type *));
+extern struct type *copy_type_recursive (struct objfile *objfile,
+ struct type *type,
+ htab_t copied_types);
-#if MAINTENANCE_CMDS
-extern void maintenance_print_type PARAMS ((char *, int));
-#endif
+extern struct type *copy_type (const struct type *type);
-#endif /* GDBTYPES_H */
+#endif /* GDBTYPES_H */
projects / deliverable / binutils-gdb.git / blobdiff