| 1 | |
| 2 | /* Internal type definitions for GDB. |
| 3 | |
| 4 | Copyright (C) 1992-2018 Free Software Foundation, Inc. |
| 5 | |
| 6 | Contributed by Cygnus Support, using pieces from other GDB modules. |
| 7 | |
| 8 | This file is part of GDB. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 3 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 22 | |
| 23 | #if !defined (GDBTYPES_H) |
| 24 | #define GDBTYPES_H 1 |
| 25 | |
| 26 | /* * \page gdbtypes GDB Types |
| 27 | |
| 28 | GDB represents all the different kinds of types in programming |
| 29 | languages using a common representation defined in gdbtypes.h. |
| 30 | |
| 31 | The main data structure is main_type; it consists of a code (such |
| 32 | as #TYPE_CODE_ENUM for enumeration types), a number of |
| 33 | generally-useful fields such as the printable name, and finally a |
| 34 | field main_type::type_specific that is a union of info specific to |
| 35 | particular languages or other special cases (such as calling |
| 36 | convention). |
| 37 | |
| 38 | The available type codes are defined in enum #type_code. The enum |
| 39 | includes codes both for types that are common across a variety |
| 40 | of languages, and for types that are language-specific. |
| 41 | |
| 42 | Most accesses to type fields go through macros such as |
| 43 | #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are |
| 44 | written such that they can be used as both rvalues and lvalues. |
| 45 | */ |
| 46 | |
| 47 | #include "hashtab.h" |
| 48 | #include "common/offset-type.h" |
| 49 | #include "common/enum-flags.h" |
| 50 | #include "common/underlying.h" |
| 51 | #include "common/print-utils.h" |
| 52 | |
| 53 | /* Forward declarations for prototypes. */ |
| 54 | struct field; |
| 55 | struct block; |
| 56 | struct value_print_options; |
| 57 | struct language_defn; |
| 58 | |
| 59 | /* These declarations are DWARF-specific as some of the gdbtypes.h data types |
| 60 | are already DWARF-specific. */ |
| 61 | |
| 62 | /* * Offset relative to the start of its containing CU (compilation |
| 63 | unit). */ |
| 64 | DEFINE_OFFSET_TYPE (cu_offset, unsigned int); |
| 65 | |
| 66 | /* * Offset relative to the start of its .debug_info or .debug_types |
| 67 | section. */ |
| 68 | DEFINE_OFFSET_TYPE (sect_offset, uint64_t); |
| 69 | |
| 70 | static inline char * |
| 71 | sect_offset_str (sect_offset offset) |
| 72 | { |
| 73 | return hex_string (to_underlying (offset)); |
| 74 | } |
| 75 | |
| 76 | /* Some macros for char-based bitfields. */ |
| 77 | |
| 78 | #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7))) |
| 79 | #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7))) |
| 80 | #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7))) |
| 81 | #define B_TYPE unsigned char |
| 82 | #define B_BYTES(x) ( 1 + ((x)>>3) ) |
| 83 | #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x)) |
| 84 | |
| 85 | /* * Different kinds of data types are distinguished by the `code' |
| 86 | field. */ |
| 87 | |
| 88 | enum type_code |
| 89 | { |
| 90 | TYPE_CODE_BITSTRING = -1, /**< Deprecated */ |
| 91 | TYPE_CODE_UNDEF = 0, /**< Not used; catches errors */ |
| 92 | TYPE_CODE_PTR, /**< Pointer type */ |
| 93 | |
| 94 | /* * Array type with lower & upper bounds. |
| 95 | |
| 96 | Regardless of the language, GDB represents multidimensional |
| 97 | array types the way C does: as arrays of arrays. So an |
| 98 | instance of a GDB array type T can always be seen as a series |
| 99 | of instances of TYPE_TARGET_TYPE (T) laid out sequentially in |
| 100 | memory. |
| 101 | |
| 102 | Row-major languages like C lay out multi-dimensional arrays so |
| 103 | that incrementing the rightmost index in a subscripting |
| 104 | expression results in the smallest change in the address of the |
| 105 | element referred to. Column-major languages like Fortran lay |
| 106 | them out so that incrementing the leftmost index results in the |
| 107 | smallest change. |
| 108 | |
| 109 | This means that, in column-major languages, working our way |
| 110 | from type to target type corresponds to working through indices |
| 111 | from right to left, not left to right. */ |
| 112 | TYPE_CODE_ARRAY, |
| 113 | |
| 114 | TYPE_CODE_STRUCT, /**< C struct or Pascal record */ |
| 115 | TYPE_CODE_UNION, /**< C union or Pascal variant part */ |
| 116 | TYPE_CODE_ENUM, /**< Enumeration type */ |
| 117 | TYPE_CODE_FLAGS, /**< Bit flags type */ |
| 118 | TYPE_CODE_FUNC, /**< Function type */ |
| 119 | TYPE_CODE_INT, /**< Integer type */ |
| 120 | |
| 121 | /* * Floating type. This is *NOT* a complex type. Beware, there |
| 122 | are parts of GDB which bogusly assume that TYPE_CODE_FLT can |
| 123 | mean complex. */ |
| 124 | TYPE_CODE_FLT, |
| 125 | |
| 126 | /* * Void type. The length field specifies the length (probably |
| 127 | always one) which is used in pointer arithmetic involving |
| 128 | pointers to this type, but actually dereferencing such a |
| 129 | pointer is invalid; a void type has no length and no actual |
| 130 | representation in memory or registers. A pointer to a void |
| 131 | type is a generic pointer. */ |
| 132 | TYPE_CODE_VOID, |
| 133 | |
| 134 | TYPE_CODE_SET, /**< Pascal sets */ |
| 135 | TYPE_CODE_RANGE, /**< Range (integers within spec'd bounds). */ |
| 136 | |
| 137 | /* * A string type which is like an array of character but prints |
| 138 | differently. It does not contain a length field as Pascal |
| 139 | strings (for many Pascals, anyway) do; if we want to deal with |
| 140 | such strings, we should use a new type code. */ |
| 141 | TYPE_CODE_STRING, |
| 142 | |
| 143 | /* * Unknown type. The length field is valid if we were able to |
| 144 | deduce that much about the type, or 0 if we don't even know |
| 145 | that. */ |
| 146 | TYPE_CODE_ERROR, |
| 147 | |
| 148 | /* C++ */ |
| 149 | TYPE_CODE_METHOD, /**< Method type */ |
| 150 | |
| 151 | /* * Pointer-to-member-function type. This describes how to access a |
| 152 | particular member function of a class (possibly a virtual |
| 153 | member function). The representation may vary between different |
| 154 | C++ ABIs. */ |
| 155 | TYPE_CODE_METHODPTR, |
| 156 | |
| 157 | /* * Pointer-to-member type. This is the offset within a class to |
| 158 | some particular data member. The only currently supported |
| 159 | representation uses an unbiased offset, with -1 representing |
| 160 | NULL; this is used by the Itanium C++ ABI (used by GCC on all |
| 161 | platforms). */ |
| 162 | TYPE_CODE_MEMBERPTR, |
| 163 | |
| 164 | TYPE_CODE_REF, /**< C++ Reference types */ |
| 165 | |
| 166 | TYPE_CODE_RVALUE_REF, /**< C++ rvalue reference types */ |
| 167 | |
| 168 | TYPE_CODE_CHAR, /**< *real* character type */ |
| 169 | |
| 170 | /* * Boolean type. 0 is false, 1 is true, and other values are |
| 171 | non-boolean (e.g. FORTRAN "logical" used as unsigned int). */ |
| 172 | TYPE_CODE_BOOL, |
| 173 | |
| 174 | /* Fortran */ |
| 175 | TYPE_CODE_COMPLEX, /**< Complex float */ |
| 176 | |
| 177 | TYPE_CODE_TYPEDEF, |
| 178 | |
| 179 | TYPE_CODE_NAMESPACE, /**< C++ namespace. */ |
| 180 | |
| 181 | TYPE_CODE_DECFLOAT, /**< Decimal floating point. */ |
| 182 | |
| 183 | TYPE_CODE_MODULE, /**< Fortran module. */ |
| 184 | |
| 185 | /* * Internal function type. */ |
| 186 | TYPE_CODE_INTERNAL_FUNCTION, |
| 187 | |
| 188 | /* * Methods implemented in extension languages. */ |
| 189 | TYPE_CODE_XMETHOD |
| 190 | }; |
| 191 | |
| 192 | /* * Some bits for the type's instance_flags word. See the macros |
| 193 | below for documentation on each bit. */ |
| 194 | |
| 195 | enum type_instance_flag_value |
| 196 | { |
| 197 | TYPE_INSTANCE_FLAG_CONST = (1 << 0), |
| 198 | TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1), |
| 199 | TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2), |
| 200 | TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3), |
| 201 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4), |
| 202 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5), |
| 203 | TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6), |
| 204 | TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7), |
| 205 | TYPE_INSTANCE_FLAG_ATOMIC = (1 << 8) |
| 206 | }; |
| 207 | |
| 208 | DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags); |
| 209 | |
| 210 | /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT, |
| 211 | the type is signed (unless TYPE_NOSIGN (below) is set). */ |
| 212 | |
| 213 | #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned) |
| 214 | |
| 215 | /* * No sign for this type. In C++, "char", "signed char", and |
| 216 | "unsigned char" are distinct types; so we need an extra flag to |
| 217 | indicate the absence of a sign! */ |
| 218 | |
| 219 | #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign) |
| 220 | |
| 221 | /* * This appears in a type's flags word if it is a stub type (e.g., |
| 222 | if someone referenced a type that wasn't defined in a source file |
| 223 | via (struct sir_not_appearing_in_this_film *)). */ |
| 224 | |
| 225 | #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub) |
| 226 | |
| 227 | /* * The target type of this type is a stub type, and this type needs |
| 228 | to be updated if it gets un-stubbed in check_typedef. Used for |
| 229 | arrays and ranges, in which TYPE_LENGTH of the array/range gets set |
| 230 | based on the TYPE_LENGTH of the target type. Also, set for |
| 231 | TYPE_CODE_TYPEDEF. */ |
| 232 | |
| 233 | #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub) |
| 234 | |
| 235 | /* * This is a function type which appears to have a prototype. We |
| 236 | need this for function calls in order to tell us if it's necessary |
| 237 | to coerce the args, or to just do the standard conversions. This |
| 238 | is used with a short field. */ |
| 239 | |
| 240 | #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped) |
| 241 | |
| 242 | /* * This flag is used to indicate that processing for this type |
| 243 | is incomplete. |
| 244 | |
| 245 | (Mostly intended for HP platforms, where class methods, for |
| 246 | instance, can be encountered before their classes in the debug |
| 247 | info; the incomplete type has to be marked so that the class and |
| 248 | the method can be assigned correct types.) */ |
| 249 | |
| 250 | #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete) |
| 251 | |
| 252 | /* * FIXME drow/2002-06-03: Only used for methods, but applies as well |
| 253 | to functions. */ |
| 254 | |
| 255 | #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs) |
| 256 | |
| 257 | /* * Identify a vector type. Gcc is handling this by adding an extra |
| 258 | attribute to the array type. We slurp that in as a new flag of a |
| 259 | type. This is used only in dwarf2read.c. */ |
| 260 | #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector) |
| 261 | |
| 262 | /* * The debugging formats (especially STABS) do not contain enough |
| 263 | information to represent all Ada types---especially those whose |
| 264 | size depends on dynamic quantities. Therefore, the GNAT Ada |
| 265 | compiler includes extra information in the form of additional type |
| 266 | definitions connected by naming conventions. This flag indicates |
| 267 | that the type is an ordinary (unencoded) GDB type that has been |
| 268 | created from the necessary run-time information, and does not need |
| 269 | further interpretation. Optionally marks ordinary, fixed-size GDB |
| 270 | type. */ |
| 271 | |
| 272 | #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance) |
| 273 | |
| 274 | /* * This debug target supports TYPE_STUB(t). In the unsupported case |
| 275 | we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE(). |
| 276 | TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only |
| 277 | guessed the TYPE_STUB(t) value (see dwarfread.c). */ |
| 278 | |
| 279 | #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported) |
| 280 | |
| 281 | /* * Not textual. By default, GDB treats all single byte integers as |
| 282 | characters (or elements of strings) unless this flag is set. */ |
| 283 | |
| 284 | #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT) |
| 285 | |
| 286 | /* * Used only for TYPE_CODE_FUNC where it specifies the real function |
| 287 | address is returned by this function call. TYPE_TARGET_TYPE |
| 288 | determines the final returned function type to be presented to |
| 289 | user. */ |
| 290 | |
| 291 | #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc) |
| 292 | |
| 293 | /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by |
| 294 | the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is |
| 295 | owned by an architecture; TYPE_OBJFILE is NULL in this case. */ |
| 296 | |
| 297 | #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned) |
| 298 | #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner |
| 299 | #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL) |
| 300 | |
| 301 | /* * True if this type was declared using the "class" keyword. This is |
| 302 | only valid for C++ structure and enum types. If false, a structure |
| 303 | was declared as a "struct"; if true it was declared "class". For |
| 304 | enum types, this is true when "enum class" or "enum struct" was |
| 305 | used to declare the type.. */ |
| 306 | |
| 307 | #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class) |
| 308 | |
| 309 | /* * True if this type is a "flag" enum. A flag enum is one where all |
| 310 | the values are pairwise disjoint when "and"ed together. This |
| 311 | affects how enum values are printed. */ |
| 312 | |
| 313 | #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum) |
| 314 | |
| 315 | /* * True if this type is a discriminated union type. Only valid for |
| 316 | TYPE_CODE_UNION. A discriminated union stores a reference to the |
| 317 | discriminant field along with the discriminator values in a dynamic |
| 318 | property. */ |
| 319 | |
| 320 | #define TYPE_FLAG_DISCRIMINATED_UNION(t) \ |
| 321 | (TYPE_MAIN_TYPE (t)->flag_discriminated_union) |
| 322 | |
| 323 | /* * Constant type. If this is set, the corresponding type has a |
| 324 | const modifier. */ |
| 325 | |
| 326 | #define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0) |
| 327 | |
| 328 | /* * Volatile type. If this is set, the corresponding type has a |
| 329 | volatile modifier. */ |
| 330 | |
| 331 | #define TYPE_VOLATILE(t) \ |
| 332 | ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0) |
| 333 | |
| 334 | /* * Restrict type. If this is set, the corresponding type has a |
| 335 | restrict modifier. */ |
| 336 | |
| 337 | #define TYPE_RESTRICT(t) \ |
| 338 | ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0) |
| 339 | |
| 340 | /* * Atomic type. If this is set, the corresponding type has an |
| 341 | _Atomic modifier. */ |
| 342 | |
| 343 | #define TYPE_ATOMIC(t) \ |
| 344 | ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0) |
| 345 | |
| 346 | /* * True if this type represents either an lvalue or lvalue reference type. */ |
| 347 | |
| 348 | #define TYPE_IS_REFERENCE(t) \ |
| 349 | (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF) |
| 350 | |
| 351 | /* * Instruction-space delimited type. This is for Harvard architectures |
| 352 | which have separate instruction and data address spaces (and perhaps |
| 353 | others). |
| 354 | |
| 355 | GDB usually defines a flat address space that is a superset of the |
| 356 | architecture's two (or more) address spaces, but this is an extension |
| 357 | of the architecture's model. |
| 358 | |
| 359 | If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type |
| 360 | resides in instruction memory, even if its address (in the extended |
| 361 | flat address space) does not reflect this. |
| 362 | |
| 363 | Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the |
| 364 | corresponding type resides in the data memory space, even if |
| 365 | this is not indicated by its (flat address space) address. |
| 366 | |
| 367 | If neither flag is set, the default space for functions / methods |
| 368 | is instruction space, and for data objects is data memory. */ |
| 369 | |
| 370 | #define TYPE_CODE_SPACE(t) \ |
| 371 | ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0) |
| 372 | |
| 373 | #define TYPE_DATA_SPACE(t) \ |
| 374 | ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0) |
| 375 | |
| 376 | /* * Address class flags. Some environments provide for pointers |
| 377 | whose size is different from that of a normal pointer or address |
| 378 | types where the bits are interpreted differently than normal |
| 379 | addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in |
| 380 | target specific ways to represent these different types of address |
| 381 | classes. */ |
| 382 | |
| 383 | #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \ |
| 384 | & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1) |
| 385 | #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \ |
| 386 | & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2) |
| 387 | #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \ |
| 388 | (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2) |
| 389 | #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \ |
| 390 | & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
| 391 | |
| 392 | /* * Information needed for a discriminated union. A discriminated |
| 393 | union is handled somewhat differently from an ordinary union. |
| 394 | |
| 395 | One field is designated as the discriminant. Only one other field |
| 396 | is active at a time; which one depends on the value of the |
| 397 | discriminant and the data in this structure. |
| 398 | |
| 399 | Additionally, it is possible to have a univariant discriminated |
| 400 | union. In this case, the union has just a single field, which is |
| 401 | assumed to be the only active variant -- in this case no |
| 402 | discriminant is provided. */ |
| 403 | |
| 404 | struct discriminant_info |
| 405 | { |
| 406 | /* * The index of the discriminant field. If -1, then this union |
| 407 | must have just a single field. */ |
| 408 | |
| 409 | int discriminant_index; |
| 410 | |
| 411 | /* * The index of the default branch of the union. If -1, then |
| 412 | there is no default branch. */ |
| 413 | |
| 414 | int default_index; |
| 415 | |
| 416 | /* * The discriminant values corresponding to each branch. This has |
| 417 | a number of entries equal to the number of fields in this union. |
| 418 | If discriminant_index is not -1, then that entry in this array is |
| 419 | not used. If default_index is not -1, then that entry in this |
| 420 | array is not used. */ |
| 421 | |
| 422 | ULONGEST discriminants[1]; |
| 423 | }; |
| 424 | |
| 425 | enum dynamic_prop_kind |
| 426 | { |
| 427 | PROP_UNDEFINED, /* Not defined. */ |
| 428 | PROP_CONST, /* Constant. */ |
| 429 | PROP_ADDR_OFFSET, /* Address offset. */ |
| 430 | PROP_LOCEXPR, /* Location expression. */ |
| 431 | PROP_LOCLIST /* Location list. */ |
| 432 | }; |
| 433 | |
| 434 | union dynamic_prop_data |
| 435 | { |
| 436 | /* Storage for constant property. */ |
| 437 | |
| 438 | LONGEST const_val; |
| 439 | |
| 440 | /* Storage for dynamic property. */ |
| 441 | |
| 442 | void *baton; |
| 443 | }; |
| 444 | |
| 445 | /* * Used to store a dynamic property. */ |
| 446 | |
| 447 | struct dynamic_prop |
| 448 | { |
| 449 | /* Determine which field of the union dynamic_prop.data is used. */ |
| 450 | enum dynamic_prop_kind kind; |
| 451 | |
| 452 | /* Storage for dynamic or static value. */ |
| 453 | union dynamic_prop_data data; |
| 454 | }; |
| 455 | |
| 456 | /* Compare two dynamic_prop objects for equality. dynamic_prop |
| 457 | instances are equal iff they have the same type and storage. */ |
| 458 | extern bool operator== (const dynamic_prop &l, const dynamic_prop &r); |
| 459 | |
| 460 | /* Compare two dynamic_prop objects for inequality. */ |
| 461 | static inline bool operator!= (const dynamic_prop &l, const dynamic_prop &r) |
| 462 | { |
| 463 | return !(l == r); |
| 464 | } |
| 465 | |
| 466 | /* * Define a type's dynamic property node kind. */ |
| 467 | enum dynamic_prop_node_kind |
| 468 | { |
| 469 | /* A property providing a type's data location. |
| 470 | Evaluating this field yields to the location of an object's data. */ |
| 471 | DYN_PROP_DATA_LOCATION, |
| 472 | |
| 473 | /* A property representing DW_AT_allocated. The presence of this attribute |
| 474 | indicates that the object of the type can be allocated/deallocated. */ |
| 475 | DYN_PROP_ALLOCATED, |
| 476 | |
| 477 | /* A property representing DW_AT_allocated. The presence of this attribute |
| 478 | indicated that the object of the type can be associated. */ |
| 479 | DYN_PROP_ASSOCIATED, |
| 480 | |
| 481 | /* A property providing an array's byte stride. */ |
| 482 | DYN_PROP_BYTE_STRIDE, |
| 483 | |
| 484 | /* A property holding information about a discriminated union. */ |
| 485 | DYN_PROP_DISCRIMINATED, |
| 486 | }; |
| 487 | |
| 488 | /* * List for dynamic type attributes. */ |
| 489 | struct dynamic_prop_list |
| 490 | { |
| 491 | /* The kind of dynamic prop in this node. */ |
| 492 | enum dynamic_prop_node_kind prop_kind; |
| 493 | |
| 494 | /* The dynamic property itself. */ |
| 495 | struct dynamic_prop prop; |
| 496 | |
| 497 | /* A pointer to the next dynamic property. */ |
| 498 | struct dynamic_prop_list *next; |
| 499 | }; |
| 500 | |
| 501 | /* * Determine which field of the union main_type.fields[x].loc is |
| 502 | used. */ |
| 503 | |
| 504 | enum field_loc_kind |
| 505 | { |
| 506 | FIELD_LOC_KIND_BITPOS, /**< bitpos */ |
| 507 | FIELD_LOC_KIND_ENUMVAL, /**< enumval */ |
| 508 | FIELD_LOC_KIND_PHYSADDR, /**< physaddr */ |
| 509 | FIELD_LOC_KIND_PHYSNAME, /**< physname */ |
| 510 | FIELD_LOC_KIND_DWARF_BLOCK /**< dwarf_block */ |
| 511 | }; |
| 512 | |
| 513 | /* * A discriminant to determine which field in the |
| 514 | main_type.type_specific union is being used, if any. |
| 515 | |
| 516 | For types such as TYPE_CODE_FLT, the use of this |
| 517 | discriminant is really redundant, as we know from the type code |
| 518 | which field is going to be used. As such, it would be possible to |
| 519 | reduce the size of this enum in order to save a bit or two for |
| 520 | other fields of struct main_type. But, since we still have extra |
| 521 | room , and for the sake of clarity and consistency, we treat all fields |
| 522 | of the union the same way. */ |
| 523 | |
| 524 | enum type_specific_kind |
| 525 | { |
| 526 | TYPE_SPECIFIC_NONE, |
| 527 | TYPE_SPECIFIC_CPLUS_STUFF, |
| 528 | TYPE_SPECIFIC_GNAT_STUFF, |
| 529 | TYPE_SPECIFIC_FLOATFORMAT, |
| 530 | /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */ |
| 531 | TYPE_SPECIFIC_FUNC, |
| 532 | TYPE_SPECIFIC_SELF_TYPE |
| 533 | }; |
| 534 | |
| 535 | union type_owner |
| 536 | { |
| 537 | struct objfile *objfile; |
| 538 | struct gdbarch *gdbarch; |
| 539 | }; |
| 540 | |
| 541 | union field_location |
| 542 | { |
| 543 | /* * Position of this field, counting in bits from start of |
| 544 | containing structure. For gdbarch_bits_big_endian=1 |
| 545 | targets, it is the bit offset to the MSB. For |
| 546 | gdbarch_bits_big_endian=0 targets, it is the bit offset to |
| 547 | the LSB. */ |
| 548 | |
| 549 | LONGEST bitpos; |
| 550 | |
| 551 | /* * Enum value. */ |
| 552 | LONGEST enumval; |
| 553 | |
| 554 | /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then |
| 555 | physaddr is the location (in the target) of the static |
| 556 | field. Otherwise, physname is the mangled label of the |
| 557 | static field. */ |
| 558 | |
| 559 | CORE_ADDR physaddr; |
| 560 | const char *physname; |
| 561 | |
| 562 | /* * The field location can be computed by evaluating the |
| 563 | following DWARF block. Its DATA is allocated on |
| 564 | objfile_obstack - no CU load is needed to access it. */ |
| 565 | |
| 566 | struct dwarf2_locexpr_baton *dwarf_block; |
| 567 | }; |
| 568 | |
| 569 | struct field |
| 570 | { |
| 571 | union field_location loc; |
| 572 | |
| 573 | /* * For a function or member type, this is 1 if the argument is |
| 574 | marked artificial. Artificial arguments should not be shown |
| 575 | to the user. For TYPE_CODE_RANGE it is set if the specific |
| 576 | bound is not defined. */ |
| 577 | |
| 578 | unsigned int artificial : 1; |
| 579 | |
| 580 | /* * Discriminant for union field_location. */ |
| 581 | |
| 582 | ENUM_BITFIELD(field_loc_kind) loc_kind : 3; |
| 583 | |
| 584 | /* * Size of this field, in bits, or zero if not packed. |
| 585 | If non-zero in an array type, indicates the element size in |
| 586 | bits (used only in Ada at the moment). |
| 587 | For an unpacked field, the field's type's length |
| 588 | says how many bytes the field occupies. */ |
| 589 | |
| 590 | unsigned int bitsize : 28; |
| 591 | |
| 592 | /* * In a struct or union type, type of this field. |
| 593 | - In a function or member type, type of this argument. |
| 594 | - In an array type, the domain-type of the array. */ |
| 595 | |
| 596 | struct type *type; |
| 597 | |
| 598 | /* * Name of field, value or argument. |
| 599 | NULL for range bounds, array domains, and member function |
| 600 | arguments. */ |
| 601 | |
| 602 | const char *name; |
| 603 | }; |
| 604 | |
| 605 | struct range_bounds |
| 606 | { |
| 607 | /* * Low bound of range. */ |
| 608 | |
| 609 | struct dynamic_prop low; |
| 610 | |
| 611 | /* * High bound of range. */ |
| 612 | |
| 613 | struct dynamic_prop high; |
| 614 | |
| 615 | /* True if HIGH range bound contains the number of elements in the |
| 616 | subrange. This affects how the final hight bound is computed. */ |
| 617 | |
| 618 | int flag_upper_bound_is_count : 1; |
| 619 | |
| 620 | /* True if LOW or/and HIGH are resolved into a static bound from |
| 621 | a dynamic one. */ |
| 622 | |
| 623 | int flag_bound_evaluated : 1; |
| 624 | }; |
| 625 | |
| 626 | /* Compare two range_bounds objects for equality. Simply does |
| 627 | memberwise comparison. */ |
| 628 | extern bool operator== (const range_bounds &l, const range_bounds &r); |
| 629 | |
| 630 | /* Compare two range_bounds objects for inequality. */ |
| 631 | static inline bool operator!= (const range_bounds &l, const range_bounds &r) |
| 632 | { |
| 633 | return !(l == r); |
| 634 | } |
| 635 | |
| 636 | union type_specific |
| 637 | { |
| 638 | /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to |
| 639 | point to cplus_struct_default, a default static instance of a |
| 640 | struct cplus_struct_type. */ |
| 641 | |
| 642 | struct cplus_struct_type *cplus_stuff; |
| 643 | |
| 644 | /* * GNAT_STUFF is for types for which the GNAT Ada compiler |
| 645 | provides additional information. */ |
| 646 | |
| 647 | struct gnat_aux_type *gnat_stuff; |
| 648 | |
| 649 | /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a |
| 650 | floatformat object that describes the floating-point value |
| 651 | that resides within the type. */ |
| 652 | |
| 653 | const struct floatformat *floatformat; |
| 654 | |
| 655 | /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */ |
| 656 | |
| 657 | struct func_type *func_stuff; |
| 658 | |
| 659 | /* * For types that are pointer to member types (TYPE_CODE_METHODPTR, |
| 660 | TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer |
| 661 | is a member of. */ |
| 662 | |
| 663 | struct type *self_type; |
| 664 | }; |
| 665 | |
| 666 | /* * Main structure representing a type in GDB. |
| 667 | |
| 668 | This structure is space-critical. Its layout has been tweaked to |
| 669 | reduce the space used. */ |
| 670 | |
| 671 | struct main_type |
| 672 | { |
| 673 | /* * Code for kind of type. */ |
| 674 | |
| 675 | ENUM_BITFIELD(type_code) code : 8; |
| 676 | |
| 677 | /* * Flags about this type. These fields appear at this location |
| 678 | because they packs nicely here. See the TYPE_* macros for |
| 679 | documentation about these fields. */ |
| 680 | |
| 681 | unsigned int flag_unsigned : 1; |
| 682 | unsigned int flag_nosign : 1; |
| 683 | unsigned int flag_stub : 1; |
| 684 | unsigned int flag_target_stub : 1; |
| 685 | unsigned int flag_static : 1; |
| 686 | unsigned int flag_prototyped : 1; |
| 687 | unsigned int flag_incomplete : 1; |
| 688 | unsigned int flag_varargs : 1; |
| 689 | unsigned int flag_vector : 1; |
| 690 | unsigned int flag_stub_supported : 1; |
| 691 | unsigned int flag_gnu_ifunc : 1; |
| 692 | unsigned int flag_fixed_instance : 1; |
| 693 | unsigned int flag_objfile_owned : 1; |
| 694 | |
| 695 | /* * True if this type was declared with "class" rather than |
| 696 | "struct". */ |
| 697 | |
| 698 | unsigned int flag_declared_class : 1; |
| 699 | |
| 700 | /* * True if this is an enum type with disjoint values. This |
| 701 | affects how the enum is printed. */ |
| 702 | |
| 703 | unsigned int flag_flag_enum : 1; |
| 704 | |
| 705 | /* * True if this type is a discriminated union type. Only valid |
| 706 | for TYPE_CODE_UNION. A discriminated union stores a reference to |
| 707 | the discriminant field along with the discriminator values in a |
| 708 | dynamic property. */ |
| 709 | |
| 710 | unsigned int flag_discriminated_union : 1; |
| 711 | |
| 712 | /* * A discriminant telling us which field of the type_specific |
| 713 | union is being used for this type, if any. */ |
| 714 | |
| 715 | ENUM_BITFIELD(type_specific_kind) type_specific_field : 3; |
| 716 | |
| 717 | /* * Number of fields described for this type. This field appears |
| 718 | at this location because it packs nicely here. */ |
| 719 | |
| 720 | short nfields; |
| 721 | |
| 722 | /* * Name of this type, or NULL if none. |
| 723 | |
| 724 | This is used for printing only, except by poorly designed C++ |
| 725 | code. For looking up a name, look for a symbol in the |
| 726 | VAR_DOMAIN. This is generally allocated in the objfile's |
| 727 | obstack. However coffread.c uses malloc. */ |
| 728 | |
| 729 | const char *name; |
| 730 | |
| 731 | /* * Tag name for this type, or NULL if none. This means that the |
| 732 | name of the type consists of a keyword followed by the tag name. |
| 733 | Which keyword is determined by the type code ("struct" for |
| 734 | TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only |
| 735 | languages with this feature. |
| 736 | |
| 737 | This is used for printing only, except by poorly designed C++ code. |
| 738 | For looking up a name, look for a symbol in the STRUCT_DOMAIN. |
| 739 | One more legitimate use is that if TYPE_STUB is set, this is |
| 740 | the name to use to look for definitions in other files. */ |
| 741 | |
| 742 | const char *tag_name; |
| 743 | |
| 744 | /* * Every type is now associated with a particular objfile, and the |
| 745 | type is allocated on the objfile_obstack for that objfile. One |
| 746 | problem however, is that there are times when gdb allocates new |
| 747 | types while it is not in the process of reading symbols from a |
| 748 | particular objfile. Fortunately, these happen when the type |
| 749 | being created is a derived type of an existing type, such as in |
| 750 | lookup_pointer_type(). So we can just allocate the new type |
| 751 | using the same objfile as the existing type, but to do this we |
| 752 | need a backpointer to the objfile from the existing type. Yes |
| 753 | this is somewhat ugly, but without major overhaul of the internal |
| 754 | type system, it can't be avoided for now. */ |
| 755 | |
| 756 | union type_owner owner; |
| 757 | |
| 758 | /* * For a pointer type, describes the type of object pointed to. |
| 759 | - For an array type, describes the type of the elements. |
| 760 | - For a function or method type, describes the type of the return value. |
| 761 | - For a range type, describes the type of the full range. |
| 762 | - For a complex type, describes the type of each coordinate. |
| 763 | - For a special record or union type encoding a dynamic-sized type |
| 764 | in GNAT, a memoized pointer to a corresponding static version of |
| 765 | the type. |
| 766 | - Unused otherwise. */ |
| 767 | |
| 768 | struct type *target_type; |
| 769 | |
| 770 | /* * For structure and union types, a description of each field. |
| 771 | For set and pascal array types, there is one "field", |
| 772 | whose type is the domain type of the set or array. |
| 773 | For range types, there are two "fields", |
| 774 | the minimum and maximum values (both inclusive). |
| 775 | For enum types, each possible value is described by one "field". |
| 776 | For a function or method type, a "field" for each parameter. |
| 777 | For C++ classes, there is one field for each base class (if it is |
| 778 | a derived class) plus one field for each class data member. Member |
| 779 | functions are recorded elsewhere. |
| 780 | |
| 781 | Using a pointer to a separate array of fields |
| 782 | allows all types to have the same size, which is useful |
| 783 | because we can allocate the space for a type before |
| 784 | we know what to put in it. */ |
| 785 | |
| 786 | union |
| 787 | { |
| 788 | struct field *fields; |
| 789 | |
| 790 | /* * Union member used for range types. */ |
| 791 | |
| 792 | struct range_bounds *bounds; |
| 793 | |
| 794 | } flds_bnds; |
| 795 | |
| 796 | /* * Slot to point to additional language-specific fields of this |
| 797 | type. */ |
| 798 | |
| 799 | union type_specific type_specific; |
| 800 | |
| 801 | /* * Contains all dynamic type properties. */ |
| 802 | struct dynamic_prop_list *dyn_prop_list; |
| 803 | }; |
| 804 | |
| 805 | /* * A ``struct type'' describes a particular instance of a type, with |
| 806 | some particular qualification. */ |
| 807 | |
| 808 | struct type |
| 809 | { |
| 810 | /* * Type that is a pointer to this type. |
| 811 | NULL if no such pointer-to type is known yet. |
| 812 | The debugger may add the address of such a type |
| 813 | if it has to construct one later. */ |
| 814 | |
| 815 | struct type *pointer_type; |
| 816 | |
| 817 | /* * C++: also need a reference type. */ |
| 818 | |
| 819 | struct type *reference_type; |
| 820 | |
| 821 | /* * A C++ rvalue reference type added in C++11. */ |
| 822 | |
| 823 | struct type *rvalue_reference_type; |
| 824 | |
| 825 | /* * Variant chain. This points to a type that differs from this |
| 826 | one only in qualifiers and length. Currently, the possible |
| 827 | qualifiers are const, volatile, code-space, data-space, and |
| 828 | address class. The length may differ only when one of the |
| 829 | address class flags are set. The variants are linked in a |
| 830 | circular ring and share MAIN_TYPE. */ |
| 831 | |
| 832 | struct type *chain; |
| 833 | |
| 834 | /* * Flags specific to this instance of the type, indicating where |
| 835 | on the ring we are. |
| 836 | |
| 837 | For TYPE_CODE_TYPEDEF the flags of the typedef type should be |
| 838 | binary or-ed with the target type, with a special case for |
| 839 | address class and space class. For example if this typedef does |
| 840 | not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the |
| 841 | instance flags are completely inherited from the target type. No |
| 842 | qualifiers can be cleared by the typedef. See also |
| 843 | check_typedef. */ |
| 844 | int instance_flags; |
| 845 | |
| 846 | /* * Length of storage for a value of this type. The value is the |
| 847 | expression in host bytes of what sizeof(type) would return. This |
| 848 | size includes padding. For example, an i386 extended-precision |
| 849 | floating point value really only occupies ten bytes, but most |
| 850 | ABI's declare its size to be 12 bytes, to preserve alignment. |
| 851 | A `struct type' representing such a floating-point type would |
| 852 | have a `length' value of 12, even though the last two bytes are |
| 853 | unused. |
| 854 | |
| 855 | Since this field is expressed in host bytes, its value is appropriate |
| 856 | to pass to memcpy and such (it is assumed that GDB itself always runs |
| 857 | on an 8-bits addressable architecture). However, when using it for |
| 858 | target address arithmetic (e.g. adding it to a target address), the |
| 859 | type_length_units function should be used in order to get the length |
| 860 | expressed in target addressable memory units. */ |
| 861 | |
| 862 | unsigned int length; |
| 863 | |
| 864 | /* * Core type, shared by a group of qualified types. */ |
| 865 | |
| 866 | struct main_type *main_type; |
| 867 | }; |
| 868 | |
| 869 | #define NULL_TYPE ((struct type *) 0) |
| 870 | |
| 871 | struct fn_fieldlist |
| 872 | { |
| 873 | |
| 874 | /* * The overloaded name. |
| 875 | This is generally allocated in the objfile's obstack. |
| 876 | However stabsread.c sometimes uses malloc. */ |
| 877 | |
| 878 | const char *name; |
| 879 | |
| 880 | /* * The number of methods with this name. */ |
| 881 | |
| 882 | int length; |
| 883 | |
| 884 | /* * The list of methods. */ |
| 885 | |
| 886 | struct fn_field *fn_fields; |
| 887 | }; |
| 888 | |
| 889 | |
| 890 | |
| 891 | struct fn_field |
| 892 | { |
| 893 | /* * If is_stub is clear, this is the mangled name which we can look |
| 894 | up to find the address of the method (FIXME: it would be cleaner |
| 895 | to have a pointer to the struct symbol here instead). |
| 896 | |
| 897 | If is_stub is set, this is the portion of the mangled name which |
| 898 | specifies the arguments. For example, "ii", if there are two int |
| 899 | arguments, or "" if there are no arguments. See gdb_mangle_name |
| 900 | for the conversion from this format to the one used if is_stub is |
| 901 | clear. */ |
| 902 | |
| 903 | const char *physname; |
| 904 | |
| 905 | /* * The function type for the method. |
| 906 | |
| 907 | (This comment used to say "The return value of the method", but |
| 908 | that's wrong. The function type is expected here, i.e. something |
| 909 | with TYPE_CODE_METHOD, and *not* the return-value type). */ |
| 910 | |
| 911 | struct type *type; |
| 912 | |
| 913 | /* * For virtual functions. First baseclass that defines this |
| 914 | virtual function. */ |
| 915 | |
| 916 | struct type *fcontext; |
| 917 | |
| 918 | /* Attributes. */ |
| 919 | |
| 920 | unsigned int is_const:1; |
| 921 | unsigned int is_volatile:1; |
| 922 | unsigned int is_private:1; |
| 923 | unsigned int is_protected:1; |
| 924 | unsigned int is_artificial:1; |
| 925 | |
| 926 | /* * A stub method only has some fields valid (but they are enough |
| 927 | to reconstruct the rest of the fields). */ |
| 928 | |
| 929 | unsigned int is_stub:1; |
| 930 | |
| 931 | /* * True if this function is a constructor, false otherwise. */ |
| 932 | |
| 933 | unsigned int is_constructor : 1; |
| 934 | |
| 935 | /* * Unused. */ |
| 936 | |
| 937 | unsigned int dummy:9; |
| 938 | |
| 939 | /* * Index into that baseclass's virtual function table, minus 2; |
| 940 | else if static: VOFFSET_STATIC; else: 0. */ |
| 941 | |
| 942 | unsigned int voffset:16; |
| 943 | |
| 944 | #define VOFFSET_STATIC 1 |
| 945 | |
| 946 | }; |
| 947 | |
| 948 | struct decl_field |
| 949 | { |
| 950 | /* * Unqualified name to be prefixed by owning class qualified |
| 951 | name. */ |
| 952 | |
| 953 | const char *name; |
| 954 | |
| 955 | /* * Type this typedef named NAME represents. */ |
| 956 | |
| 957 | struct type *type; |
| 958 | |
| 959 | /* * True if this field was declared protected, false otherwise. */ |
| 960 | unsigned int is_protected : 1; |
| 961 | |
| 962 | /* * True if this field was declared private, false otherwise. */ |
| 963 | unsigned int is_private : 1; |
| 964 | }; |
| 965 | |
| 966 | /* * C++ language-specific information for TYPE_CODE_STRUCT and |
| 967 | TYPE_CODE_UNION nodes. */ |
| 968 | |
| 969 | struct cplus_struct_type |
| 970 | { |
| 971 | /* * Number of base classes this type derives from. The |
| 972 | baseclasses are stored in the first N_BASECLASSES fields |
| 973 | (i.e. the `fields' field of the struct type). The only fields |
| 974 | of struct field that are used are: type, name, loc.bitpos. */ |
| 975 | |
| 976 | short n_baseclasses; |
| 977 | |
| 978 | /* * Field number of the virtual function table pointer in VPTR_BASETYPE. |
| 979 | All access to this field must be through TYPE_VPTR_FIELDNO as one |
| 980 | thing it does is check whether the field has been initialized. |
| 981 | Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default, |
| 982 | which for portability reasons doesn't initialize this field. |
| 983 | TYPE_VPTR_FIELDNO returns -1 for this case. |
| 984 | |
| 985 | If -1, we were unable to find the virtual function table pointer in |
| 986 | initial symbol reading, and get_vptr_fieldno should be called to find |
| 987 | it if possible. get_vptr_fieldno will update this field if possible. |
| 988 | Otherwise the value is left at -1. |
| 989 | |
| 990 | Unused if this type does not have virtual functions. */ |
| 991 | |
| 992 | short vptr_fieldno; |
| 993 | |
| 994 | /* * Number of methods with unique names. All overloaded methods |
| 995 | with the same name count only once. */ |
| 996 | |
| 997 | short nfn_fields; |
| 998 | |
| 999 | /* * Number of template arguments. */ |
| 1000 | |
| 1001 | unsigned short n_template_arguments; |
| 1002 | |
| 1003 | /* * One if this struct is a dynamic class, as defined by the |
| 1004 | Itanium C++ ABI: if it requires a virtual table pointer, |
| 1005 | because it or any of its base classes have one or more virtual |
| 1006 | member functions or virtual base classes. Minus one if not |
| 1007 | dynamic. Zero if not yet computed. */ |
| 1008 | |
| 1009 | int is_dynamic : 2; |
| 1010 | |
| 1011 | /* * The base class which defined the virtual function table pointer. */ |
| 1012 | |
| 1013 | struct type *vptr_basetype; |
| 1014 | |
| 1015 | /* * For derived classes, the number of base classes is given by |
| 1016 | n_baseclasses and virtual_field_bits is a bit vector containing |
| 1017 | one bit per base class. If the base class is virtual, the |
| 1018 | corresponding bit will be set. |
| 1019 | I.E, given: |
| 1020 | |
| 1021 | class A{}; |
| 1022 | class B{}; |
| 1023 | class C : public B, public virtual A {}; |
| 1024 | |
| 1025 | B is a baseclass of C; A is a virtual baseclass for C. |
| 1026 | This is a C++ 2.0 language feature. */ |
| 1027 | |
| 1028 | B_TYPE *virtual_field_bits; |
| 1029 | |
| 1030 | /* * For classes with private fields, the number of fields is |
| 1031 | given by nfields and private_field_bits is a bit vector |
| 1032 | containing one bit per field. |
| 1033 | |
| 1034 | If the field is private, the corresponding bit will be set. */ |
| 1035 | |
| 1036 | B_TYPE *private_field_bits; |
| 1037 | |
| 1038 | /* * For classes with protected fields, the number of fields is |
| 1039 | given by nfields and protected_field_bits is a bit vector |
| 1040 | containing one bit per field. |
| 1041 | |
| 1042 | If the field is private, the corresponding bit will be set. */ |
| 1043 | |
| 1044 | B_TYPE *protected_field_bits; |
| 1045 | |
| 1046 | /* * For classes with fields to be ignored, either this is |
| 1047 | optimized out or this field has length 0. */ |
| 1048 | |
| 1049 | B_TYPE *ignore_field_bits; |
| 1050 | |
| 1051 | /* * For classes, structures, and unions, a description of each |
| 1052 | field, which consists of an overloaded name, followed by the |
| 1053 | types of arguments that the method expects, and then the name |
| 1054 | after it has been renamed to make it distinct. |
| 1055 | |
| 1056 | fn_fieldlists points to an array of nfn_fields of these. */ |
| 1057 | |
| 1058 | struct fn_fieldlist *fn_fieldlists; |
| 1059 | |
| 1060 | /* * typedefs defined inside this class. typedef_field points to |
| 1061 | an array of typedef_field_count elements. */ |
| 1062 | |
| 1063 | struct decl_field *typedef_field; |
| 1064 | |
| 1065 | unsigned typedef_field_count; |
| 1066 | |
| 1067 | /* * The nested types defined by this type. nested_types points to |
| 1068 | an array of nested_types_count elements. */ |
| 1069 | |
| 1070 | struct decl_field *nested_types; |
| 1071 | |
| 1072 | unsigned nested_types_count; |
| 1073 | |
| 1074 | /* * The template arguments. This is an array with |
| 1075 | N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template |
| 1076 | classes. */ |
| 1077 | |
| 1078 | struct symbol **template_arguments; |
| 1079 | }; |
| 1080 | |
| 1081 | /* * Struct used to store conversion rankings. */ |
| 1082 | |
| 1083 | struct rank |
| 1084 | { |
| 1085 | short rank; |
| 1086 | |
| 1087 | /* * When two conversions are of the same type and therefore have |
| 1088 | the same rank, subrank is used to differentiate the two. |
| 1089 | |
| 1090 | Eg: Two derived-class-pointer to base-class-pointer conversions |
| 1091 | would both have base pointer conversion rank, but the |
| 1092 | conversion with the shorter distance to the ancestor is |
| 1093 | preferable. 'subrank' would be used to reflect that. */ |
| 1094 | |
| 1095 | short subrank; |
| 1096 | }; |
| 1097 | |
| 1098 | /* * Struct used for ranking a function for overload resolution. */ |
| 1099 | |
| 1100 | struct badness_vector |
| 1101 | { |
| 1102 | int length; |
| 1103 | struct rank *rank; |
| 1104 | }; |
| 1105 | |
| 1106 | /* * GNAT Ada-specific information for various Ada types. */ |
| 1107 | |
| 1108 | struct gnat_aux_type |
| 1109 | { |
| 1110 | /* * Parallel type used to encode information about dynamic types |
| 1111 | used in Ada (such as variant records, variable-size array, |
| 1112 | etc). */ |
| 1113 | struct type* descriptive_type; |
| 1114 | }; |
| 1115 | |
| 1116 | /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */ |
| 1117 | |
| 1118 | struct func_type |
| 1119 | { |
| 1120 | /* * The calling convention for targets supporting multiple ABIs. |
| 1121 | Right now this is only fetched from the Dwarf-2 |
| 1122 | DW_AT_calling_convention attribute. The value is one of the |
| 1123 | DW_CC enum dwarf_calling_convention constants. */ |
| 1124 | |
| 1125 | unsigned calling_convention : 8; |
| 1126 | |
| 1127 | /* * Whether this function normally returns to its caller. It is |
| 1128 | set from the DW_AT_noreturn attribute if set on the |
| 1129 | DW_TAG_subprogram. */ |
| 1130 | |
| 1131 | unsigned int is_noreturn : 1; |
| 1132 | |
| 1133 | /* * Only those DW_TAG_call_site's in this function that have |
| 1134 | DW_AT_call_tail_call set are linked in this list. Function |
| 1135 | without its tail call list complete |
| 1136 | (DW_AT_call_all_tail_calls or its superset |
| 1137 | DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some |
| 1138 | DW_TAG_call_site's exist in such function. */ |
| 1139 | |
| 1140 | struct call_site *tail_call_list; |
| 1141 | |
| 1142 | /* * For method types (TYPE_CODE_METHOD), the aggregate type that |
| 1143 | contains the method. */ |
| 1144 | |
| 1145 | struct type *self_type; |
| 1146 | }; |
| 1147 | |
| 1148 | /* struct call_site_parameter can be referenced in callees by several ways. */ |
| 1149 | |
| 1150 | enum call_site_parameter_kind |
| 1151 | { |
| 1152 | /* * Use field call_site_parameter.u.dwarf_reg. */ |
| 1153 | CALL_SITE_PARAMETER_DWARF_REG, |
| 1154 | |
| 1155 | /* * Use field call_site_parameter.u.fb_offset. */ |
| 1156 | CALL_SITE_PARAMETER_FB_OFFSET, |
| 1157 | |
| 1158 | /* * Use field call_site_parameter.u.param_offset. */ |
| 1159 | CALL_SITE_PARAMETER_PARAM_OFFSET |
| 1160 | }; |
| 1161 | |
| 1162 | struct call_site_target |
| 1163 | { |
| 1164 | union field_location loc; |
| 1165 | |
| 1166 | /* * Discriminant for union field_location. */ |
| 1167 | |
| 1168 | ENUM_BITFIELD(field_loc_kind) loc_kind : 3; |
| 1169 | }; |
| 1170 | |
| 1171 | union call_site_parameter_u |
| 1172 | { |
| 1173 | /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX |
| 1174 | as DWARF register number, for register passed |
| 1175 | parameters. */ |
| 1176 | |
| 1177 | int dwarf_reg; |
| 1178 | |
| 1179 | /* * Offset from the callee's frame base, for stack passed |
| 1180 | parameters. This equals offset from the caller's stack |
| 1181 | pointer. */ |
| 1182 | |
| 1183 | CORE_ADDR fb_offset; |
| 1184 | |
| 1185 | /* * Offset relative to the start of this PER_CU to |
| 1186 | DW_TAG_formal_parameter which is referenced by both |
| 1187 | caller and the callee. */ |
| 1188 | |
| 1189 | cu_offset param_cu_off; |
| 1190 | }; |
| 1191 | |
| 1192 | struct call_site_parameter |
| 1193 | { |
| 1194 | ENUM_BITFIELD (call_site_parameter_kind) kind : 2; |
| 1195 | |
| 1196 | union call_site_parameter_u u; |
| 1197 | |
| 1198 | /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */ |
| 1199 | |
| 1200 | const gdb_byte *value; |
| 1201 | size_t value_size; |
| 1202 | |
| 1203 | /* * DW_TAG_formal_parameter's DW_AT_call_data_value. |
| 1204 | It may be NULL if not provided by DWARF. */ |
| 1205 | |
| 1206 | const gdb_byte *data_value; |
| 1207 | size_t data_value_size; |
| 1208 | }; |
| 1209 | |
| 1210 | /* * A place where a function gets called from, represented by |
| 1211 | DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */ |
| 1212 | |
| 1213 | struct call_site |
| 1214 | { |
| 1215 | /* * Address of the first instruction after this call. It must be |
| 1216 | the first field as we overload core_addr_hash and core_addr_eq |
| 1217 | for it. */ |
| 1218 | |
| 1219 | CORE_ADDR pc; |
| 1220 | |
| 1221 | /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */ |
| 1222 | |
| 1223 | struct call_site *tail_call_next; |
| 1224 | |
| 1225 | /* * Describe DW_AT_call_target. Missing attribute uses |
| 1226 | FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */ |
| 1227 | |
| 1228 | struct call_site_target target; |
| 1229 | |
| 1230 | /* * Size of the PARAMETER array. */ |
| 1231 | |
| 1232 | unsigned parameter_count; |
| 1233 | |
| 1234 | /* * CU of the function where the call is located. It gets used |
| 1235 | for DWARF blocks execution in the parameter array below. */ |
| 1236 | |
| 1237 | struct dwarf2_per_cu_data *per_cu; |
| 1238 | |
| 1239 | /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */ |
| 1240 | |
| 1241 | struct call_site_parameter parameter[1]; |
| 1242 | }; |
| 1243 | |
| 1244 | /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared |
| 1245 | static structure. */ |
| 1246 | |
| 1247 | extern const struct cplus_struct_type cplus_struct_default; |
| 1248 | |
| 1249 | extern void allocate_cplus_struct_type (struct type *); |
| 1250 | |
| 1251 | #define INIT_CPLUS_SPECIFIC(type) \ |
| 1252 | (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \ |
| 1253 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \ |
| 1254 | &cplus_struct_default) |
| 1255 | |
| 1256 | #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type) |
| 1257 | |
| 1258 | #define HAVE_CPLUS_STRUCT(type) \ |
| 1259 | (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \ |
| 1260 | && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default) |
| 1261 | |
| 1262 | extern const struct gnat_aux_type gnat_aux_default; |
| 1263 | |
| 1264 | extern void allocate_gnat_aux_type (struct type *); |
| 1265 | |
| 1266 | #define INIT_GNAT_SPECIFIC(type) \ |
| 1267 | (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \ |
| 1268 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default) |
| 1269 | #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type) |
| 1270 | /* * A macro that returns non-zero if the type-specific data should be |
| 1271 | read as "gnat-stuff". */ |
| 1272 | #define HAVE_GNAT_AUX_INFO(type) \ |
| 1273 | (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF) |
| 1274 | |
| 1275 | #define INIT_FUNC_SPECIFIC(type) \ |
| 1276 | (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \ |
| 1277 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \ |
| 1278 | TYPE_ZALLOC (type, \ |
| 1279 | sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff))) |
| 1280 | |
| 1281 | #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags |
| 1282 | #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type |
| 1283 | #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name |
| 1284 | #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name |
| 1285 | #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type |
| 1286 | #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type |
| 1287 | #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type |
| 1288 | #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type |
| 1289 | #define TYPE_CHAIN(thistype) (thistype)->chain |
| 1290 | /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef. |
| 1291 | But check_typedef does set the TYPE_LENGTH of the TYPEDEF type, |
| 1292 | so you only have to call check_typedef once. Since allocate_value |
| 1293 | calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */ |
| 1294 | #define TYPE_LENGTH(thistype) (thistype)->length |
| 1295 | /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real |
| 1296 | type, you need to do TYPE_CODE (check_type (this_type)). */ |
| 1297 | #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code |
| 1298 | #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields |
| 1299 | #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields |
| 1300 | |
| 1301 | #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0) |
| 1302 | #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds |
| 1303 | #define TYPE_LOW_BOUND(range_type) \ |
| 1304 | TYPE_RANGE_DATA(range_type)->low.data.const_val |
| 1305 | #define TYPE_HIGH_BOUND(range_type) \ |
| 1306 | TYPE_RANGE_DATA(range_type)->high.data.const_val |
| 1307 | #define TYPE_LOW_BOUND_UNDEFINED(range_type) \ |
| 1308 | (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED) |
| 1309 | #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \ |
| 1310 | (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED) |
| 1311 | #define TYPE_HIGH_BOUND_KIND(range_type) \ |
| 1312 | TYPE_RANGE_DATA(range_type)->high.kind |
| 1313 | #define TYPE_LOW_BOUND_KIND(range_type) \ |
| 1314 | TYPE_RANGE_DATA(range_type)->low.kind |
| 1315 | |
| 1316 | /* Property accessors for the type data location. */ |
| 1317 | #define TYPE_DATA_LOCATION(thistype) \ |
| 1318 | get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype) |
| 1319 | #define TYPE_DATA_LOCATION_BATON(thistype) \ |
| 1320 | TYPE_DATA_LOCATION (thistype)->data.baton |
| 1321 | #define TYPE_DATA_LOCATION_ADDR(thistype) \ |
| 1322 | TYPE_DATA_LOCATION (thistype)->data.const_val |
| 1323 | #define TYPE_DATA_LOCATION_KIND(thistype) \ |
| 1324 | TYPE_DATA_LOCATION (thistype)->kind |
| 1325 | |
| 1326 | /* Property accessors for the type allocated/associated. */ |
| 1327 | #define TYPE_ALLOCATED_PROP(thistype) \ |
| 1328 | get_dyn_prop (DYN_PROP_ALLOCATED, thistype) |
| 1329 | #define TYPE_ASSOCIATED_PROP(thistype) \ |
| 1330 | get_dyn_prop (DYN_PROP_ASSOCIATED, thistype) |
| 1331 | |
| 1332 | /* Attribute accessors for dynamic properties. */ |
| 1333 | #define TYPE_DYN_PROP_LIST(thistype) \ |
| 1334 | TYPE_MAIN_TYPE(thistype)->dyn_prop_list |
| 1335 | #define TYPE_DYN_PROP_BATON(dynprop) \ |
| 1336 | dynprop->data.baton |
| 1337 | #define TYPE_DYN_PROP_ADDR(dynprop) \ |
| 1338 | dynprop->data.const_val |
| 1339 | #define TYPE_DYN_PROP_KIND(dynprop) \ |
| 1340 | dynprop->kind |
| 1341 | |
| 1342 | |
| 1343 | /* Moto-specific stuff for FORTRAN arrays. */ |
| 1344 | |
| 1345 | #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \ |
| 1346 | TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype)) |
| 1347 | #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \ |
| 1348 | TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype)) |
| 1349 | |
| 1350 | #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \ |
| 1351 | (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype)))) |
| 1352 | |
| 1353 | #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \ |
| 1354 | (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype)))) |
| 1355 | |
| 1356 | /* C++ */ |
| 1357 | |
| 1358 | #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype) |
| 1359 | /* Do not call this, use TYPE_SELF_TYPE. */ |
| 1360 | extern struct type *internal_type_self_type (struct type *); |
| 1361 | extern void set_type_self_type (struct type *, struct type *); |
| 1362 | |
| 1363 | extern int internal_type_vptr_fieldno (struct type *); |
| 1364 | extern void set_type_vptr_fieldno (struct type *, int); |
| 1365 | extern struct type *internal_type_vptr_basetype (struct type *); |
| 1366 | extern void set_type_vptr_basetype (struct type *, struct type *); |
| 1367 | #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype) |
| 1368 | #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype) |
| 1369 | |
| 1370 | #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields |
| 1371 | #define TYPE_SPECIFIC_FIELD(thistype) \ |
| 1372 | TYPE_MAIN_TYPE(thistype)->type_specific_field |
| 1373 | /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case |
| 1374 | where we're trying to print an Ada array using the C language. |
| 1375 | In that case, there is no "cplus_stuff", but the C language assumes |
| 1376 | that there is. What we do, in that case, is pretend that there is |
| 1377 | an implicit one which is the default cplus stuff. */ |
| 1378 | #define TYPE_CPLUS_SPECIFIC(thistype) \ |
| 1379 | (!HAVE_CPLUS_STRUCT(thistype) \ |
| 1380 | ? (struct cplus_struct_type*)&cplus_struct_default \ |
| 1381 | : TYPE_RAW_CPLUS_SPECIFIC(thistype)) |
| 1382 | #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff |
| 1383 | #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat |
| 1384 | #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff |
| 1385 | #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type |
| 1386 | #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention |
| 1387 | #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn |
| 1388 | #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list |
| 1389 | #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index) |
| 1390 | #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses |
| 1391 | #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index) |
| 1392 | #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index) |
| 1393 | #define BASETYPE_VIA_PUBLIC(thistype, index) \ |
| 1394 | ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index))) |
| 1395 | #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic |
| 1396 | |
| 1397 | #define BASETYPE_VIA_VIRTUAL(thistype, index) \ |
| 1398 | (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ |
| 1399 | : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))) |
| 1400 | |
| 1401 | #define FIELD_TYPE(thisfld) ((thisfld).type) |
| 1402 | #define FIELD_NAME(thisfld) ((thisfld).name) |
| 1403 | #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind) |
| 1404 | #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos) |
| 1405 | #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0) |
| 1406 | #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval) |
| 1407 | #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0) |
| 1408 | #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname) |
| 1409 | #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr) |
| 1410 | #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block) |
| 1411 | #define SET_FIELD_BITPOS(thisfld, bitpos) \ |
| 1412 | (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \ |
| 1413 | FIELD_BITPOS_LVAL (thisfld) = (bitpos)) |
| 1414 | #define SET_FIELD_ENUMVAL(thisfld, enumval) \ |
| 1415 | (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \ |
| 1416 | FIELD_ENUMVAL_LVAL (thisfld) = (enumval)) |
| 1417 | #define SET_FIELD_PHYSNAME(thisfld, name) \ |
| 1418 | (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \ |
| 1419 | FIELD_STATIC_PHYSNAME (thisfld) = (name)) |
| 1420 | #define SET_FIELD_PHYSADDR(thisfld, addr) \ |
| 1421 | (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \ |
| 1422 | FIELD_STATIC_PHYSADDR (thisfld) = (addr)) |
| 1423 | #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \ |
| 1424 | (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \ |
| 1425 | FIELD_DWARF_BLOCK (thisfld) = (addr)) |
| 1426 | #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial) |
| 1427 | #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize) |
| 1428 | |
| 1429 | #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n] |
| 1430 | #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n)) |
| 1431 | #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n)) |
| 1432 | #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n)) |
| 1433 | #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n)) |
| 1434 | #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n)) |
| 1435 | #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n)) |
| 1436 | #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n)) |
| 1437 | #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n)) |
| 1438 | #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n)) |
| 1439 | #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n)) |
| 1440 | #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0) |
| 1441 | |
| 1442 | #define TYPE_FIELD_PRIVATE_BITS(thistype) \ |
| 1443 | TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits |
| 1444 | #define TYPE_FIELD_PROTECTED_BITS(thistype) \ |
| 1445 | TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits |
| 1446 | #define TYPE_FIELD_IGNORE_BITS(thistype) \ |
| 1447 | TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits |
| 1448 | #define TYPE_FIELD_VIRTUAL_BITS(thistype) \ |
| 1449 | TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits |
| 1450 | #define SET_TYPE_FIELD_PRIVATE(thistype, n) \ |
| 1451 | B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)) |
| 1452 | #define SET_TYPE_FIELD_PROTECTED(thistype, n) \ |
| 1453 | B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)) |
| 1454 | #define SET_TYPE_FIELD_IGNORE(thistype, n) \ |
| 1455 | B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)) |
| 1456 | #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \ |
| 1457 | B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)) |
| 1458 | #define TYPE_FIELD_PRIVATE(thistype, n) \ |
| 1459 | (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \ |
| 1460 | : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))) |
| 1461 | #define TYPE_FIELD_PROTECTED(thistype, n) \ |
| 1462 | (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \ |
| 1463 | : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))) |
| 1464 | #define TYPE_FIELD_IGNORE(thistype, n) \ |
| 1465 | (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \ |
| 1466 | : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))) |
| 1467 | #define TYPE_FIELD_VIRTUAL(thistype, n) \ |
| 1468 | (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ |
| 1469 | : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))) |
| 1470 | |
| 1471 | #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists |
| 1472 | #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n] |
| 1473 | #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields |
| 1474 | #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name |
| 1475 | #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length |
| 1476 | |
| 1477 | #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \ |
| 1478 | TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments |
| 1479 | #define TYPE_TEMPLATE_ARGUMENTS(thistype) \ |
| 1480 | TYPE_CPLUS_SPECIFIC (thistype)->template_arguments |
| 1481 | #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \ |
| 1482 | TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n] |
| 1483 | |
| 1484 | #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n] |
| 1485 | #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname |
| 1486 | #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type |
| 1487 | #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type) |
| 1488 | #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const) |
| 1489 | #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile) |
| 1490 | #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private) |
| 1491 | #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected) |
| 1492 | #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial) |
| 1493 | #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub) |
| 1494 | #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor) |
| 1495 | #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext) |
| 1496 | #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2) |
| 1497 | #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1) |
| 1498 | #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC) |
| 1499 | |
| 1500 | /* Accessors for typedefs defined by a class. */ |
| 1501 | #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \ |
| 1502 | TYPE_CPLUS_SPECIFIC (thistype)->typedef_field |
| 1503 | #define TYPE_TYPEDEF_FIELD(thistype, n) \ |
| 1504 | TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n] |
| 1505 | #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \ |
| 1506 | TYPE_TYPEDEF_FIELD (thistype, n).name |
| 1507 | #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \ |
| 1508 | TYPE_TYPEDEF_FIELD (thistype, n).type |
| 1509 | #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \ |
| 1510 | TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count |
| 1511 | #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \ |
| 1512 | TYPE_TYPEDEF_FIELD (thistype, n).is_protected |
| 1513 | #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \ |
| 1514 | TYPE_TYPEDEF_FIELD (thistype, n).is_private |
| 1515 | |
| 1516 | #define TYPE_NESTED_TYPES_ARRAY(thistype) \ |
| 1517 | TYPE_CPLUS_SPECIFIC (thistype)->nested_types |
| 1518 | #define TYPE_NESTED_TYPES_FIELD(thistype, n) \ |
| 1519 | TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n] |
| 1520 | #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \ |
| 1521 | TYPE_NESTED_TYPES_FIELD (thistype, n).name |
| 1522 | #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \ |
| 1523 | TYPE_NESTED_TYPES_FIELD (thistype, n).type |
| 1524 | #define TYPE_NESTED_TYPES_COUNT(thistype) \ |
| 1525 | TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count |
| 1526 | #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \ |
| 1527 | TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected |
| 1528 | #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \ |
| 1529 | TYPE_NESTED_TYPES_FIELD (thistype, n).is_private |
| 1530 | |
| 1531 | #define TYPE_IS_OPAQUE(thistype) \ |
| 1532 | (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \ |
| 1533 | || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \ |
| 1534 | && (TYPE_NFIELDS (thistype) == 0) \ |
| 1535 | && (!HAVE_CPLUS_STRUCT (thistype) \ |
| 1536 | || TYPE_NFN_FIELDS (thistype) == 0) \ |
| 1537 | && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype))) |
| 1538 | |
| 1539 | /* * A helper macro that returns the name of a type or "unnamed type" |
| 1540 | if the type has no name. */ |
| 1541 | |
| 1542 | #define TYPE_SAFE_NAME(type) \ |
| 1543 | (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>")) |
| 1544 | |
| 1545 | /* * A helper macro that returns the name of an error type. If the |
| 1546 | type has a name, it is used; otherwise, a default is used. */ |
| 1547 | |
| 1548 | #define TYPE_ERROR_NAME(type) \ |
| 1549 | (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>")) |
| 1550 | |
| 1551 | /* Given TYPE, return its floatformat. */ |
| 1552 | const struct floatformat *floatformat_from_type (const struct type *type); |
| 1553 | |
| 1554 | struct builtin_type |
| 1555 | { |
| 1556 | /* Integral types. */ |
| 1557 | |
| 1558 | /* Implicit size/sign (based on the architecture's ABI). */ |
| 1559 | struct type *builtin_void; |
| 1560 | struct type *builtin_char; |
| 1561 | struct type *builtin_short; |
| 1562 | struct type *builtin_int; |
| 1563 | struct type *builtin_long; |
| 1564 | struct type *builtin_signed_char; |
| 1565 | struct type *builtin_unsigned_char; |
| 1566 | struct type *builtin_unsigned_short; |
| 1567 | struct type *builtin_unsigned_int; |
| 1568 | struct type *builtin_unsigned_long; |
| 1569 | struct type *builtin_float; |
| 1570 | struct type *builtin_double; |
| 1571 | struct type *builtin_long_double; |
| 1572 | struct type *builtin_complex; |
| 1573 | struct type *builtin_double_complex; |
| 1574 | struct type *builtin_string; |
| 1575 | struct type *builtin_bool; |
| 1576 | struct type *builtin_long_long; |
| 1577 | struct type *builtin_unsigned_long_long; |
| 1578 | struct type *builtin_decfloat; |
| 1579 | struct type *builtin_decdouble; |
| 1580 | struct type *builtin_declong; |
| 1581 | |
| 1582 | /* "True" character types. |
| 1583 | We use these for the '/c' print format, because c_char is just a |
| 1584 | one-byte integral type, which languages less laid back than C |
| 1585 | will print as ... well, a one-byte integral type. */ |
| 1586 | struct type *builtin_true_char; |
| 1587 | struct type *builtin_true_unsigned_char; |
| 1588 | |
| 1589 | /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0" |
| 1590 | is for when an architecture needs to describe a register that has |
| 1591 | no size. */ |
| 1592 | struct type *builtin_int0; |
| 1593 | struct type *builtin_int8; |
| 1594 | struct type *builtin_uint8; |
| 1595 | struct type *builtin_int16; |
| 1596 | struct type *builtin_uint16; |
| 1597 | struct type *builtin_int32; |
| 1598 | struct type *builtin_uint32; |
| 1599 | struct type *builtin_int64; |
| 1600 | struct type *builtin_uint64; |
| 1601 | struct type *builtin_int128; |
| 1602 | struct type *builtin_uint128; |
| 1603 | |
| 1604 | /* Wide character types. */ |
| 1605 | struct type *builtin_char16; |
| 1606 | struct type *builtin_char32; |
| 1607 | struct type *builtin_wchar; |
| 1608 | |
| 1609 | /* Pointer types. */ |
| 1610 | |
| 1611 | /* * `pointer to data' type. Some target platforms use an implicitly |
| 1612 | {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */ |
| 1613 | struct type *builtin_data_ptr; |
| 1614 | |
| 1615 | /* * `pointer to function (returning void)' type. Harvard |
| 1616 | architectures mean that ABI function and code pointers are not |
| 1617 | interconvertible. Similarly, since ANSI, C standards have |
| 1618 | explicitly said that pointers to functions and pointers to data |
| 1619 | are not interconvertible --- that is, you can't cast a function |
| 1620 | pointer to void * and back, and expect to get the same value. |
| 1621 | However, all function pointer types are interconvertible, so void |
| 1622 | (*) () can server as a generic function pointer. */ |
| 1623 | |
| 1624 | struct type *builtin_func_ptr; |
| 1625 | |
| 1626 | /* * `function returning pointer to function (returning void)' type. |
| 1627 | The final void return type is not significant for it. */ |
| 1628 | |
| 1629 | struct type *builtin_func_func; |
| 1630 | |
| 1631 | /* Special-purpose types. */ |
| 1632 | |
| 1633 | /* * This type is used to represent a GDB internal function. */ |
| 1634 | |
| 1635 | struct type *internal_fn; |
| 1636 | |
| 1637 | /* * This type is used to represent an xmethod. */ |
| 1638 | struct type *xmethod; |
| 1639 | }; |
| 1640 | |
| 1641 | /* * Return the type table for the specified architecture. */ |
| 1642 | |
| 1643 | extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch); |
| 1644 | |
| 1645 | /* * Per-objfile types used by symbol readers. */ |
| 1646 | |
| 1647 | struct objfile_type |
| 1648 | { |
| 1649 | /* Basic types based on the objfile architecture. */ |
| 1650 | struct type *builtin_void; |
| 1651 | struct type *builtin_char; |
| 1652 | struct type *builtin_short; |
| 1653 | struct type *builtin_int; |
| 1654 | struct type *builtin_long; |
| 1655 | struct type *builtin_long_long; |
| 1656 | struct type *builtin_signed_char; |
| 1657 | struct type *builtin_unsigned_char; |
| 1658 | struct type *builtin_unsigned_short; |
| 1659 | struct type *builtin_unsigned_int; |
| 1660 | struct type *builtin_unsigned_long; |
| 1661 | struct type *builtin_unsigned_long_long; |
| 1662 | struct type *builtin_float; |
| 1663 | struct type *builtin_double; |
| 1664 | struct type *builtin_long_double; |
| 1665 | |
| 1666 | /* * This type is used to represent symbol addresses. */ |
| 1667 | struct type *builtin_core_addr; |
| 1668 | |
| 1669 | /* * This type represents a type that was unrecognized in symbol |
| 1670 | read-in. */ |
| 1671 | struct type *builtin_error; |
| 1672 | |
| 1673 | /* * Types used for symbols with no debug information. */ |
| 1674 | struct type *nodebug_text_symbol; |
| 1675 | struct type *nodebug_text_gnu_ifunc_symbol; |
| 1676 | struct type *nodebug_got_plt_symbol; |
| 1677 | struct type *nodebug_data_symbol; |
| 1678 | struct type *nodebug_unknown_symbol; |
| 1679 | struct type *nodebug_tls_symbol; |
| 1680 | }; |
| 1681 | |
| 1682 | /* * Return the type table for the specified objfile. */ |
| 1683 | |
| 1684 | extern const struct objfile_type *objfile_type (struct objfile *objfile); |
| 1685 | |
| 1686 | /* Explicit floating-point formats. See "floatformat.h". */ |
| 1687 | extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN]; |
| 1688 | extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN]; |
| 1689 | extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN]; |
| 1690 | extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN]; |
| 1691 | extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN]; |
| 1692 | extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN]; |
| 1693 | extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN]; |
| 1694 | extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN]; |
| 1695 | extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN]; |
| 1696 | extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN]; |
| 1697 | extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN]; |
| 1698 | extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN]; |
| 1699 | |
| 1700 | |
| 1701 | /* * Allocate space for storing data associated with a particular |
| 1702 | type. We ensure that the space is allocated using the same |
| 1703 | mechanism that was used to allocate the space for the type |
| 1704 | structure itself. I.e. if the type is on an objfile's |
| 1705 | objfile_obstack, then the space for data associated with that type |
| 1706 | will also be allocated on the objfile_obstack. If the type is not |
| 1707 | associated with any particular objfile (such as builtin types), |
| 1708 | then the data space will be allocated with xmalloc, the same as for |
| 1709 | the type structure. */ |
| 1710 | |
| 1711 | #define TYPE_ALLOC(t,size) \ |
| 1712 | (TYPE_OBJFILE_OWNED (t) \ |
| 1713 | ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \ |
| 1714 | : xmalloc (size)) |
| 1715 | |
| 1716 | #define TYPE_ZALLOC(t,size) \ |
| 1717 | (TYPE_OBJFILE_OWNED (t) \ |
| 1718 | ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \ |
| 1719 | 0, size) \ |
| 1720 | : xzalloc (size)) |
| 1721 | |
| 1722 | /* Use alloc_type to allocate a type owned by an objfile. Use |
| 1723 | alloc_type_arch to allocate a type owned by an architecture. Use |
| 1724 | alloc_type_copy to allocate a type with the same owner as a |
| 1725 | pre-existing template type, no matter whether objfile or |
| 1726 | gdbarch. */ |
| 1727 | extern struct type *alloc_type (struct objfile *); |
| 1728 | extern struct type *alloc_type_arch (struct gdbarch *); |
| 1729 | extern struct type *alloc_type_copy (const struct type *); |
| 1730 | |
| 1731 | /* * Return the type's architecture. For types owned by an |
| 1732 | architecture, that architecture is returned. For types owned by an |
| 1733 | objfile, that objfile's architecture is returned. */ |
| 1734 | |
| 1735 | extern struct gdbarch *get_type_arch (const struct type *); |
| 1736 | |
| 1737 | /* * This returns the target type (or NULL) of TYPE, also skipping |
| 1738 | past typedefs. */ |
| 1739 | |
| 1740 | extern struct type *get_target_type (struct type *type); |
| 1741 | |
| 1742 | /* Return the equivalent of TYPE_LENGTH, but in number of target |
| 1743 | addressable memory units of the associated gdbarch instead of bytes. */ |
| 1744 | |
| 1745 | extern unsigned int type_length_units (struct type *type); |
| 1746 | |
| 1747 | /* * Helper function to construct objfile-owned types. */ |
| 1748 | |
| 1749 | extern struct type *init_type (struct objfile *, enum type_code, int, |
| 1750 | const char *); |
| 1751 | extern struct type *init_integer_type (struct objfile *, int, int, |
| 1752 | const char *); |
| 1753 | extern struct type *init_character_type (struct objfile *, int, int, |
| 1754 | const char *); |
| 1755 | extern struct type *init_boolean_type (struct objfile *, int, int, |
| 1756 | const char *); |
| 1757 | extern struct type *init_float_type (struct objfile *, int, const char *, |
| 1758 | const struct floatformat **); |
| 1759 | extern struct type *init_decfloat_type (struct objfile *, int, const char *); |
| 1760 | extern struct type *init_complex_type (struct objfile *, const char *, |
| 1761 | struct type *); |
| 1762 | extern struct type *init_pointer_type (struct objfile *, int, const char *, |
| 1763 | struct type *); |
| 1764 | |
| 1765 | /* Helper functions to construct architecture-owned types. */ |
| 1766 | extern struct type *arch_type (struct gdbarch *, enum type_code, int, |
| 1767 | const char *); |
| 1768 | extern struct type *arch_integer_type (struct gdbarch *, int, int, |
| 1769 | const char *); |
| 1770 | extern struct type *arch_character_type (struct gdbarch *, int, int, |
| 1771 | const char *); |
| 1772 | extern struct type *arch_boolean_type (struct gdbarch *, int, int, |
| 1773 | const char *); |
| 1774 | extern struct type *arch_float_type (struct gdbarch *, int, const char *, |
| 1775 | const struct floatformat **); |
| 1776 | extern struct type *arch_decfloat_type (struct gdbarch *, int, const char *); |
| 1777 | extern struct type *arch_complex_type (struct gdbarch *, const char *, |
| 1778 | struct type *); |
| 1779 | extern struct type *arch_pointer_type (struct gdbarch *, int, const char *, |
| 1780 | struct type *); |
| 1781 | |
| 1782 | /* Helper functions to construct a struct or record type. An |
| 1783 | initially empty type is created using arch_composite_type(). |
| 1784 | Fields are then added using append_composite_type_field*(). A union |
| 1785 | type has its size set to the largest field. A struct type has each |
| 1786 | field packed against the previous. */ |
| 1787 | |
| 1788 | extern struct type *arch_composite_type (struct gdbarch *gdbarch, |
| 1789 | const char *name, enum type_code code); |
| 1790 | extern void append_composite_type_field (struct type *t, const char *name, |
| 1791 | struct type *field); |
| 1792 | extern void append_composite_type_field_aligned (struct type *t, |
| 1793 | const char *name, |
| 1794 | struct type *field, |
| 1795 | int alignment); |
| 1796 | struct field *append_composite_type_field_raw (struct type *t, const char *name, |
| 1797 | struct type *field); |
| 1798 | |
| 1799 | /* Helper functions to construct a bit flags type. An initially empty |
| 1800 | type is created using arch_flag_type(). Flags are then added using |
| 1801 | append_flag_type_field() and append_flag_type_flag(). */ |
| 1802 | extern struct type *arch_flags_type (struct gdbarch *gdbarch, |
| 1803 | const char *name, int bit); |
| 1804 | extern void append_flags_type_field (struct type *type, |
| 1805 | int start_bitpos, int nr_bits, |
| 1806 | struct type *field_type, const char *name); |
| 1807 | extern void append_flags_type_flag (struct type *type, int bitpos, |
| 1808 | const char *name); |
| 1809 | |
| 1810 | extern void make_vector_type (struct type *array_type); |
| 1811 | extern struct type *init_vector_type (struct type *elt_type, int n); |
| 1812 | |
| 1813 | extern struct type *lookup_reference_type (struct type *, enum type_code); |
| 1814 | extern struct type *lookup_lvalue_reference_type (struct type *); |
| 1815 | extern struct type *lookup_rvalue_reference_type (struct type *); |
| 1816 | |
| 1817 | |
| 1818 | extern struct type *make_reference_type (struct type *, struct type **, |
| 1819 | enum type_code); |
| 1820 | |
| 1821 | extern struct type *make_cv_type (int, int, struct type *, struct type **); |
| 1822 | |
| 1823 | extern struct type *make_restrict_type (struct type *); |
| 1824 | |
| 1825 | extern struct type *make_unqualified_type (struct type *); |
| 1826 | |
| 1827 | extern struct type *make_atomic_type (struct type *); |
| 1828 | |
| 1829 | extern void replace_type (struct type *, struct type *); |
| 1830 | |
| 1831 | extern int address_space_name_to_int (struct gdbarch *, char *); |
| 1832 | |
| 1833 | extern const char *address_space_int_to_name (struct gdbarch *, int); |
| 1834 | |
| 1835 | extern struct type *make_type_with_address_space (struct type *type, |
| 1836 | int space_identifier); |
| 1837 | |
| 1838 | extern struct type *lookup_memberptr_type (struct type *, struct type *); |
| 1839 | |
| 1840 | extern struct type *lookup_methodptr_type (struct type *); |
| 1841 | |
| 1842 | extern void smash_to_method_type (struct type *type, struct type *self_type, |
| 1843 | struct type *to_type, struct field *args, |
| 1844 | int nargs, int varargs); |
| 1845 | |
| 1846 | extern void smash_to_memberptr_type (struct type *, struct type *, |
| 1847 | struct type *); |
| 1848 | |
| 1849 | extern void smash_to_methodptr_type (struct type *, struct type *); |
| 1850 | |
| 1851 | extern struct type *allocate_stub_method (struct type *); |
| 1852 | |
| 1853 | extern const char *type_name_no_tag (const struct type *); |
| 1854 | |
| 1855 | extern const char *type_name_no_tag_or_error (struct type *type); |
| 1856 | |
| 1857 | extern struct type *lookup_struct_elt_type (struct type *, const char *, int); |
| 1858 | |
| 1859 | extern struct type *make_pointer_type (struct type *, struct type **); |
| 1860 | |
| 1861 | extern struct type *lookup_pointer_type (struct type *); |
| 1862 | |
| 1863 | extern struct type *make_function_type (struct type *, struct type **); |
| 1864 | |
| 1865 | extern struct type *lookup_function_type (struct type *); |
| 1866 | |
| 1867 | extern struct type *lookup_function_type_with_arguments (struct type *, |
| 1868 | int, |
| 1869 | struct type **); |
| 1870 | |
| 1871 | extern struct type *create_static_range_type (struct type *, struct type *, |
| 1872 | LONGEST, LONGEST); |
| 1873 | |
| 1874 | |
| 1875 | extern struct type *create_array_type_with_stride |
| 1876 | (struct type *, struct type *, struct type *, |
| 1877 | struct dynamic_prop *, unsigned int); |
| 1878 | |
| 1879 | extern struct type *create_range_type (struct type *, struct type *, |
| 1880 | const struct dynamic_prop *, |
| 1881 | const struct dynamic_prop *); |
| 1882 | |
| 1883 | extern struct type *create_array_type (struct type *, struct type *, |
| 1884 | struct type *); |
| 1885 | |
| 1886 | extern struct type *lookup_array_range_type (struct type *, LONGEST, LONGEST); |
| 1887 | |
| 1888 | extern struct type *create_string_type (struct type *, struct type *, |
| 1889 | struct type *); |
| 1890 | extern struct type *lookup_string_range_type (struct type *, LONGEST, LONGEST); |
| 1891 | |
| 1892 | extern struct type *create_set_type (struct type *, struct type *); |
| 1893 | |
| 1894 | extern struct type *lookup_unsigned_typename (const struct language_defn *, |
| 1895 | struct gdbarch *, const char *); |
| 1896 | |
| 1897 | extern struct type *lookup_signed_typename (const struct language_defn *, |
| 1898 | struct gdbarch *, const char *); |
| 1899 | |
| 1900 | extern void get_unsigned_type_max (struct type *, ULONGEST *); |
| 1901 | |
| 1902 | extern void get_signed_type_minmax (struct type *, LONGEST *, LONGEST *); |
| 1903 | |
| 1904 | /* * Resolve all dynamic values of a type e.g. array bounds to static values. |
| 1905 | ADDR specifies the location of the variable the type is bound to. |
| 1906 | If TYPE has no dynamic properties return TYPE; otherwise a new type with |
| 1907 | static properties is returned. */ |
| 1908 | extern struct type *resolve_dynamic_type (struct type *type, |
| 1909 | const gdb_byte *valaddr, |
| 1910 | CORE_ADDR addr); |
| 1911 | |
| 1912 | /* * Predicate if the type has dynamic values, which are not resolved yet. */ |
| 1913 | extern int is_dynamic_type (struct type *type); |
| 1914 | |
| 1915 | /* * Return the dynamic property of the requested KIND from TYPE's |
| 1916 | list of dynamic properties. */ |
| 1917 | extern struct dynamic_prop *get_dyn_prop |
| 1918 | (enum dynamic_prop_node_kind kind, const struct type *type); |
| 1919 | |
| 1920 | /* * Given a dynamic property PROP of a given KIND, add this dynamic |
| 1921 | property to the given TYPE. |
| 1922 | |
| 1923 | This function assumes that TYPE is objfile-owned. */ |
| 1924 | extern void add_dyn_prop |
| 1925 | (enum dynamic_prop_node_kind kind, struct dynamic_prop prop, |
| 1926 | struct type *type); |
| 1927 | |
| 1928 | extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, |
| 1929 | struct type *type); |
| 1930 | |
| 1931 | extern struct type *check_typedef (struct type *); |
| 1932 | |
| 1933 | extern void check_stub_method_group (struct type *, int); |
| 1934 | |
| 1935 | extern char *gdb_mangle_name (struct type *, int, int); |
| 1936 | |
| 1937 | extern struct type *lookup_typename (const struct language_defn *, |
| 1938 | struct gdbarch *, const char *, |
| 1939 | const struct block *, int); |
| 1940 | |
| 1941 | extern struct type *lookup_template_type (char *, struct type *, |
| 1942 | const struct block *); |
| 1943 | |
| 1944 | extern int get_vptr_fieldno (struct type *, struct type **); |
| 1945 | |
| 1946 | extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *); |
| 1947 | |
| 1948 | extern int get_array_bounds (struct type *type, LONGEST *low_bound, |
| 1949 | LONGEST *high_bound); |
| 1950 | |
| 1951 | extern int discrete_position (struct type *type, LONGEST val, LONGEST *pos); |
| 1952 | |
| 1953 | extern int class_types_same_p (const struct type *, const struct type *); |
| 1954 | |
| 1955 | extern int is_ancestor (struct type *, struct type *); |
| 1956 | |
| 1957 | extern int is_public_ancestor (struct type *, struct type *); |
| 1958 | |
| 1959 | extern int is_unique_ancestor (struct type *, struct value *); |
| 1960 | |
| 1961 | /* Overload resolution */ |
| 1962 | |
| 1963 | #define LENGTH_MATCH(bv) ((bv)->rank[0]) |
| 1964 | |
| 1965 | /* * Badness if parameter list length doesn't match arg list length. */ |
| 1966 | extern const struct rank LENGTH_MISMATCH_BADNESS; |
| 1967 | |
| 1968 | /* * Dummy badness value for nonexistent parameter positions. */ |
| 1969 | extern const struct rank TOO_FEW_PARAMS_BADNESS; |
| 1970 | /* * Badness if no conversion among types. */ |
| 1971 | extern const struct rank INCOMPATIBLE_TYPE_BADNESS; |
| 1972 | |
| 1973 | /* * Badness of an exact match. */ |
| 1974 | extern const struct rank EXACT_MATCH_BADNESS; |
| 1975 | |
| 1976 | /* * Badness of integral promotion. */ |
| 1977 | extern const struct rank INTEGER_PROMOTION_BADNESS; |
| 1978 | /* * Badness of floating promotion. */ |
| 1979 | extern const struct rank FLOAT_PROMOTION_BADNESS; |
| 1980 | /* * Badness of converting a derived class pointer |
| 1981 | to a base class pointer. */ |
| 1982 | extern const struct rank BASE_PTR_CONVERSION_BADNESS; |
| 1983 | /* * Badness of integral conversion. */ |
| 1984 | extern const struct rank INTEGER_CONVERSION_BADNESS; |
| 1985 | /* * Badness of floating conversion. */ |
| 1986 | extern const struct rank FLOAT_CONVERSION_BADNESS; |
| 1987 | /* * Badness of integer<->floating conversions. */ |
| 1988 | extern const struct rank INT_FLOAT_CONVERSION_BADNESS; |
| 1989 | /* * Badness of conversion of pointer to void pointer. */ |
| 1990 | extern const struct rank VOID_PTR_CONVERSION_BADNESS; |
| 1991 | /* * Badness of conversion to boolean. */ |
| 1992 | extern const struct rank BOOL_CONVERSION_BADNESS; |
| 1993 | /* * Badness of converting derived to base class. */ |
| 1994 | extern const struct rank BASE_CONVERSION_BADNESS; |
| 1995 | /* * Badness of converting from non-reference to reference. Subrank |
| 1996 | is the type of reference conversion being done. */ |
| 1997 | extern const struct rank REFERENCE_CONVERSION_BADNESS; |
| 1998 | /* * Conversion to rvalue reference. */ |
| 1999 | #define REFERENCE_CONVERSION_RVALUE 1 |
| 2000 | /* * Conversion to const lvalue reference. */ |
| 2001 | #define REFERENCE_CONVERSION_CONST_LVALUE 2 |
| 2002 | |
| 2003 | /* * Badness of converting integer 0 to NULL pointer. */ |
| 2004 | extern const struct rank NULL_POINTER_CONVERSION; |
| 2005 | /* * Badness of cv-conversion. Subrank is a flag describing the conversions |
| 2006 | being done. */ |
| 2007 | extern const struct rank CV_CONVERSION_BADNESS; |
| 2008 | #define CV_CONVERSION_CONST 1 |
| 2009 | #define CV_CONVERSION_VOLATILE 2 |
| 2010 | |
| 2011 | /* Non-standard conversions allowed by the debugger */ |
| 2012 | |
| 2013 | /* * Converting a pointer to an int is usually OK. */ |
| 2014 | extern const struct rank NS_POINTER_CONVERSION_BADNESS; |
| 2015 | |
| 2016 | /* * Badness of converting a (non-zero) integer constant |
| 2017 | to a pointer. */ |
| 2018 | extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS; |
| 2019 | |
| 2020 | extern struct rank sum_ranks (struct rank a, struct rank b); |
| 2021 | extern int compare_ranks (struct rank a, struct rank b); |
| 2022 | |
| 2023 | extern int compare_badness (struct badness_vector *, struct badness_vector *); |
| 2024 | |
| 2025 | extern struct badness_vector *rank_function (struct type **, int, |
| 2026 | struct value **, int); |
| 2027 | |
| 2028 | extern struct rank rank_one_type (struct type *, struct type *, |
| 2029 | struct value *); |
| 2030 | |
| 2031 | extern void recursive_dump_type (struct type *, int); |
| 2032 | |
| 2033 | extern int field_is_static (struct field *); |
| 2034 | |
| 2035 | /* printcmd.c */ |
| 2036 | |
| 2037 | extern void print_scalar_formatted (const gdb_byte *, struct type *, |
| 2038 | const struct value_print_options *, |
| 2039 | int, struct ui_file *); |
| 2040 | |
| 2041 | extern int can_dereference (struct type *); |
| 2042 | |
| 2043 | extern int is_integral_type (struct type *); |
| 2044 | |
| 2045 | extern int is_floating_type (struct type *); |
| 2046 | |
| 2047 | extern int is_scalar_type (struct type *type); |
| 2048 | |
| 2049 | extern int is_scalar_type_recursive (struct type *); |
| 2050 | |
| 2051 | extern int class_or_union_p (const struct type *); |
| 2052 | |
| 2053 | extern void maintenance_print_type (const char *, int); |
| 2054 | |
| 2055 | extern htab_t create_copied_types_hash (struct objfile *objfile); |
| 2056 | |
| 2057 | extern struct type *copy_type_recursive (struct objfile *objfile, |
| 2058 | struct type *type, |
| 2059 | htab_t copied_types); |
| 2060 | |
| 2061 | extern struct type *copy_type (const struct type *type); |
| 2062 | |
| 2063 | extern int types_equal (struct type *, struct type *); |
| 2064 | |
| 2065 | extern int types_deeply_equal (struct type *, struct type *); |
| 2066 | |
| 2067 | extern int type_not_allocated (const struct type *type); |
| 2068 | |
| 2069 | extern int type_not_associated (const struct type *type); |
| 2070 | |
| 2071 | #endif /* GDBTYPES_H */ |