1 /* Definitions for values of C expressions, for GDB. 2 3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 5 2008, 2009, 2010 Free Software Foundation, Inc. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #if !defined (VALUE_H) 23 #define VALUE_H 1 24 25 #include "doublest.h" 26 #include "frame.h" /* For struct frame_id. */ 27 28 struct block; 29 struct expression; 30 struct regcache; 31 struct symbol; 32 struct type; 33 struct ui_file; 34 struct language_defn; 35 struct value_print_options; 36 37 /* The structure which defines the type of a value. It should never 38 be possible for a program lval value to survive over a call to the 39 inferior (i.e. to be put into the history list or an internal 40 variable). */ 41 42 struct value; 43 44 /* Values are stored in a chain, so that they can be deleted easily 45 over calls to the inferior. Values assigned to internal variables, 46 put into the value history or exposed to Python are taken off this 47 list. */ 48 49 struct value *value_next (struct value *); 50 51 /* Type of the value. */ 52 53 extern struct type *value_type (const struct value *); 54 55 /* This is being used to change the type of an existing value, that 56 code should instead be creating a new value with the changed type 57 (but possibly shared content). */ 58 59 extern void deprecated_set_value_type (struct value *value, 60 struct type *type); 61 62 /* Only used for bitfields; number of bits contained in them. */ 63 64 extern int value_bitsize (const struct value *); 65 extern void set_value_bitsize (struct value *, int bit); 66 67 /* Only used for bitfields; position of start of field. For 68 gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For 69 gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */ 70 71 extern int value_bitpos (const struct value *); 72 extern void set_value_bitpos (struct value *, int bit); 73 74 /* Only used for bitfields; the containing value. This allows a 75 single read from the target when displaying multiple 76 bitfields. */ 77 78 struct value *value_parent (struct value *); 79 80 /* Describes offset of a value within lval of a structure in bytes. 81 If lval == lval_memory, this is an offset to the address. If lval 82 == lval_register, this is a further offset from location.address 83 within the registers structure. Note also the member 84 embedded_offset below. */ 85 86 extern int value_offset (const struct value *); 87 extern void set_value_offset (struct value *, int offset); 88 89 /* The comment from "struct value" reads: ``Is it modifiable? Only 90 relevant if lval != not_lval.''. Shouldn't the value instead be 91 not_lval and be done with it? */ 92 93 extern int deprecated_value_modifiable (struct value *value); 94 extern void deprecated_set_value_modifiable (struct value *value, 95 int modifiable); 96 97 /* If a value represents a C++ object, then the `type' field gives the 98 object's compile-time type. If the object actually belongs to some 99 class derived from `type', perhaps with other base classes and 100 additional members, then `type' is just a subobject of the real 101 thing, and the full object is probably larger than `type' would 102 suggest. 103 104 If `type' is a dynamic class (i.e. one with a vtable), then GDB can 105 actually determine the object's run-time type by looking at the 106 run-time type information in the vtable. When this information is 107 available, we may elect to read in the entire object, for several 108 reasons: 109 110 - When printing the value, the user would probably rather see the 111 full object, not just the limited portion apparent from the 112 compile-time type. 113 114 - If `type' has virtual base classes, then even printing `type' 115 alone may require reaching outside the `type' portion of the 116 object to wherever the virtual base class has been stored. 117 118 When we store the entire object, `enclosing_type' is the run-time 119 type -- the complete object -- and `embedded_offset' is the offset 120 of `type' within that larger type, in bytes. The value_contents() 121 macro takes `embedded_offset' into account, so most GDB code 122 continues to see the `type' portion of the value, just as the 123 inferior would. 124 125 If `type' is a pointer to an object, then `enclosing_type' is a 126 pointer to the object's run-time type, and `pointed_to_offset' is 127 the offset in bytes from the full object to the pointed-to object 128 -- that is, the value `embedded_offset' would have if we followed 129 the pointer and fetched the complete object. (I don't really see 130 the point. Why not just determine the run-time type when you 131 indirect, and avoid the special case? The contents don't matter 132 until you indirect anyway.) 133 134 If we're not doing anything fancy, `enclosing_type' is equal to 135 `type', and `embedded_offset' is zero, so everything works 136 normally. */ 137 138 extern struct type *value_enclosing_type (struct value *); 139 extern struct value *value_change_enclosing_type (struct value *val, 140 struct type *new_type); 141 extern int value_pointed_to_offset (struct value *value); 142 extern void set_value_pointed_to_offset (struct value *value, int val); 143 extern int value_embedded_offset (struct value *value); 144 extern void set_value_embedded_offset (struct value *value, int val); 145 146 /* For lval_computed values, this structure holds functions used to 147 retrieve and set the value (or portions of the value). 148 149 For each function, 'V' is the 'this' pointer: an lval_funcs 150 function F may always assume that the V it receives is an 151 lval_computed value, and has F in the appropriate slot of its 152 lval_funcs structure. */ 153 154 struct lval_funcs 155 { 156 /* Fill in VALUE's contents. This is used to "un-lazy" values. If 157 a problem arises in obtaining VALUE's bits, this function should 158 call 'error'. */ 159 void (*read) (struct value *v); 160 161 /* Handle an assignment TOVAL = FROMVAL by writing the value of 162 FROMVAL to TOVAL's location. The contents of TOVAL have not yet 163 been updated. If a problem arises in doing so, this function 164 should call 'error'. */ 165 void (*write) (struct value *toval, struct value *fromval); 166 167 /* Check the validity of some bits in VALUE. This should return 1 168 if all the bits starting at OFFSET and extending for LENGTH bits 169 are valid, or 0 if any bit is invalid. */ 170 int (*check_validity) (const struct value *value, int offset, int length); 171 172 /* Return 1 if any bit in VALUE is valid, 0 if they are all invalid. */ 173 int (*check_any_valid) (const struct value *value); 174 175 /* Return a duplicate of VALUE's closure, for use in a new value. 176 This may simply return the same closure, if VALUE's is 177 reference-counted or statically allocated. 178 179 This may be NULL, in which case VALUE's closure is re-used in the 180 new value. */ 181 void *(*copy_closure) (const struct value *v); 182 183 /* Drop VALUE's reference to its closure. Maybe this frees the 184 closure; maybe this decrements a reference count; maybe the 185 closure is statically allocated and this does nothing. 186 187 This may be NULL, in which case no action is taken to free 188 VALUE's closure. */ 189 void (*free_closure) (struct value *v); 190 }; 191 192 /* Create a computed lvalue, with type TYPE, function pointers FUNCS, 193 and closure CLOSURE. */ 194 195 extern struct value *allocate_computed_value (struct type *type, 196 struct lval_funcs *funcs, 197 void *closure); 198 199 /* If VALUE is lval_computed, return its lval_funcs structure. */ 200 201 extern struct lval_funcs *value_computed_funcs (struct value *value); 202 203 /* If VALUE is lval_computed, return its closure. The meaning of the 204 returned value depends on the functions VALUE uses. */ 205 206 extern void *value_computed_closure (const struct value *value); 207 208 /* If zero, contents of this value are in the contents field. If 209 nonzero, contents are in inferior. If the lval field is lval_memory, 210 the contents are in inferior memory at location.address plus offset. 211 The lval field may also be lval_register. 212 213 WARNING: This field is used by the code which handles watchpoints 214 (see breakpoint.c) to decide whether a particular value can be 215 watched by hardware watchpoints. If the lazy flag is set for some 216 member of a value chain, it is assumed that this member of the 217 chain doesn't need to be watched as part of watching the value 218 itself. This is how GDB avoids watching the entire struct or array 219 when the user wants to watch a single struct member or array 220 element. If you ever change the way lazy flag is set and reset, be 221 sure to consider this use as well! */ 222 223 extern int value_lazy (struct value *); 224 extern void set_value_lazy (struct value *value, int val); 225 226 extern int value_stack (struct value *); 227 extern void set_value_stack (struct value *value, int val); 228 229 /* value_contents() and value_contents_raw() both return the address 230 of the gdb buffer used to hold a copy of the contents of the lval. 231 value_contents() is used when the contents of the buffer are needed 232 -- it uses value_fetch_lazy() to load the buffer from the process 233 being debugged if it hasn't already been loaded 234 (value_contents_writeable() is used when a writeable but fetched 235 buffer is required).. value_contents_raw() is used when data is 236 being stored into the buffer, or when it is certain that the 237 contents of the buffer are valid. 238 239 Note: The contents pointer is adjusted by the offset required to 240 get to the real subobject, if the value happens to represent 241 something embedded in a larger run-time object. */ 242 243 extern gdb_byte *value_contents_raw (struct value *); 244 245 /* Actual contents of the value. For use of this value; setting it 246 uses the stuff above. Not valid if lazy is nonzero. Target 247 byte-order. We force it to be aligned properly for any possible 248 value. Note that a value therefore extends beyond what is 249 declared here. */ 250 251 extern const gdb_byte *value_contents (struct value *); 252 extern gdb_byte *value_contents_writeable (struct value *); 253 254 /* The ALL variants of the above two macros do not adjust the returned 255 pointer by the embedded_offset value. */ 256 257 extern gdb_byte *value_contents_all_raw (struct value *); 258 extern const gdb_byte *value_contents_all (struct value *); 259 260 /* Like value_contents_all, but does not require that the returned 261 bits be valid. This should only be used in situations where you 262 plan to check the validity manually. */ 263 extern const gdb_byte *value_contents_for_printing (struct value *value); 264 265 extern int value_fetch_lazy (struct value *val); 266 extern int value_contents_equal (struct value *val1, struct value *val2); 267 268 /* If nonzero, this is the value of a variable which does not actually 269 exist in the program. */ 270 extern int value_optimized_out (struct value *value); 271 extern void set_value_optimized_out (struct value *value, int val); 272 273 /* Like value_optimized_out, but return false if any bit in the object 274 is valid. */ 275 extern int value_entirely_optimized_out (const struct value *value); 276 277 /* Set or return field indicating whether a variable is initialized or 278 not, based on debugging information supplied by the compiler. 279 1 = initialized; 0 = uninitialized. */ 280 extern int value_initialized (struct value *); 281 extern void set_value_initialized (struct value *, int); 282 283 /* Set COMPONENT's location as appropriate for a component of WHOLE 284 --- regardless of what kind of lvalue WHOLE is. */ 285 extern void set_value_component_location (struct value *component, 286 const struct value *whole); 287 288 /* While the following fields are per- VALUE .CONTENT .PIECE (i.e., a 289 single value might have multiple LVALs), this hacked interface is 290 limited to just the first PIECE. Expect further change. */ 291 /* Type of value; either not an lval, or one of the various different 292 possible kinds of lval. */ 293 extern enum lval_type *deprecated_value_lval_hack (struct value *); 294 #define VALUE_LVAL(val) (*deprecated_value_lval_hack (val)) 295 296 /* If lval == lval_memory, return the address in the inferior. If 297 lval == lval_register, return the byte offset into the registers 298 structure. Otherwise, return 0. The returned address 299 includes the offset, if any. */ 300 extern CORE_ADDR value_address (struct value *); 301 302 /* Like value_address, except the result does not include value's 303 offset. */ 304 extern CORE_ADDR value_raw_address (struct value *); 305 306 /* Set the address of a value. */ 307 extern void set_value_address (struct value *, CORE_ADDR); 308 309 /* Pointer to internal variable. */ 310 extern struct internalvar **deprecated_value_internalvar_hack (struct value *); 311 #define VALUE_INTERNALVAR(val) (*deprecated_value_internalvar_hack (val)) 312 313 /* Frame register value is relative to. This will be described in the 314 lval enum above as "lval_register". */ 315 extern struct frame_id *deprecated_value_frame_id_hack (struct value *); 316 #define VALUE_FRAME_ID(val) (*deprecated_value_frame_id_hack (val)) 317 318 /* Register number if the value is from a register. */ 319 extern short *deprecated_value_regnum_hack (struct value *); 320 #define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val)) 321 322 /* Convert a REF to the object referenced. */ 323 324 extern struct value *coerce_ref (struct value *value); 325 326 /* If ARG is an array, convert it to a pointer. 327 If ARG is a function, convert it to a function pointer. 328 329 References are dereferenced. */ 330 331 extern struct value *coerce_array (struct value *value); 332 333 /* Given a value, determine whether the bits starting at OFFSET and 334 extending for LENGTH bits are valid. This returns nonzero if all 335 bits in the given range are valid, zero if any bit is invalid. */ 336 337 extern int value_bits_valid (const struct value *value, 338 int offset, int length); 339 340 341 342 #include "symtab.h" 343 #include "gdbtypes.h" 344 #include "expression.h" 345 346 struct frame_info; 347 struct fn_field; 348 349 extern void print_address_demangle (struct gdbarch *, CORE_ADDR, 350 struct ui_file *, int); 351 352 extern LONGEST value_as_long (struct value *val); 353 extern DOUBLEST value_as_double (struct value *val); 354 extern CORE_ADDR value_as_address (struct value *val); 355 356 extern LONGEST unpack_long (struct type *type, const gdb_byte *valaddr); 357 extern DOUBLEST unpack_double (struct type *type, const gdb_byte *valaddr, 358 int *invp); 359 extern CORE_ADDR unpack_pointer (struct type *type, const gdb_byte *valaddr); 360 LONGEST unpack_bits_as_long (struct type *field_type, const gdb_byte *valaddr, 361 int bitpos, int bitsize); 362 extern LONGEST unpack_field_as_long (struct type *type, 363 const gdb_byte *valaddr, 364 int fieldno); 365 366 extern void pack_long (gdb_byte *buf, struct type *type, LONGEST num); 367 368 extern struct value *value_from_longest (struct type *type, LONGEST num); 369 extern struct value *value_from_ulongest (struct type *type, ULONGEST num); 370 extern struct value *value_from_pointer (struct type *type, CORE_ADDR addr); 371 extern struct value *value_from_double (struct type *type, DOUBLEST num); 372 extern struct value *value_from_decfloat (struct type *type, 373 const gdb_byte *decbytes); 374 375 extern struct value *value_at (struct type *type, CORE_ADDR addr); 376 extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr); 377 378 extern struct value *value_from_contents_and_address (struct type *, 379 const gdb_byte *, 380 CORE_ADDR); 381 382 extern struct value *default_value_from_register (struct type *type, 383 int regnum, 384 struct frame_info *frame); 385 386 extern struct value *value_from_register (struct type *type, int regnum, 387 struct frame_info *frame); 388 389 extern CORE_ADDR address_from_register (struct type *type, int regnum, 390 struct frame_info *frame); 391 392 extern struct value *value_of_variable (struct symbol *var, struct block *b); 393 394 extern struct value *address_of_variable (struct symbol *var, struct block *b); 395 396 extern struct value *value_of_register (int regnum, struct frame_info *frame); 397 398 struct value *value_of_register_lazy (struct frame_info *frame, int regnum); 399 400 extern int symbol_read_needs_frame (struct symbol *); 401 402 extern struct value *read_var_value (struct symbol *var, 403 struct frame_info *frame); 404 405 extern struct value *allocate_value (struct type *type); 406 extern struct value *allocate_value_lazy (struct type *type); 407 extern void allocate_value_contents (struct value *value); 408 409 extern struct value *allocate_repeat_value (struct type *type, int count); 410 411 extern struct value *value_mark (void); 412 413 extern void value_free_to_mark (struct value *mark); 414 415 extern struct value *value_cstring (char *ptr, int len, 416 struct type *char_type); 417 extern struct value *value_string (char *ptr, int len, 418 struct type *char_type); 419 extern struct value *value_bitstring (char *ptr, int len, 420 struct type *index_type); 421 422 extern struct value *value_array (int lowbound, int highbound, 423 struct value **elemvec); 424 425 extern struct value *value_concat (struct value *arg1, struct value *arg2); 426 427 extern struct value *value_binop (struct value *arg1, struct value *arg2, 428 enum exp_opcode op); 429 430 extern struct value *value_ptradd (struct value *arg1, LONGEST arg2); 431 432 extern LONGEST value_ptrdiff (struct value *arg1, struct value *arg2); 433 434 extern int value_must_coerce_to_target (struct value *arg1); 435 436 extern struct value *value_coerce_to_target (struct value *arg1); 437 438 extern struct value *value_coerce_array (struct value *arg1); 439 440 extern struct value *value_coerce_function (struct value *arg1); 441 442 extern struct value *value_ind (struct value *arg1); 443 444 extern struct value *value_addr (struct value *arg1); 445 446 extern struct value *value_ref (struct value *arg1); 447 448 extern struct value *value_assign (struct value *toval, 449 struct value *fromval); 450 451 extern struct value *value_pos (struct value *arg1); 452 453 extern struct value *value_neg (struct value *arg1); 454 455 extern struct value *value_complement (struct value *arg1); 456 457 extern struct value *value_struct_elt (struct value **argp, 458 struct value **args, 459 const char *name, int *static_memfuncp, 460 const char *err); 461 462 extern struct value *value_aggregate_elt (struct type *curtype, 463 char *name, 464 struct type *expect_type, 465 int want_address, 466 enum noside noside); 467 468 extern struct value *value_static_field (struct type *type, int fieldno); 469 470 extern struct fn_field *value_find_oload_method_list (struct value **, 471 const char *, 472 int, int *, 473 struct type **, int *); 474 475 enum oload_search_type { NON_METHOD, METHOD, BOTH }; 476 477 extern int find_overload_match (struct type **arg_types, int nargs, 478 const char *name, 479 enum oload_search_type method, int lax, 480 struct value **objp, struct symbol *fsym, 481 struct value **valp, struct symbol **symp, 482 int *staticp, const int no_adl); 483 484 extern struct value *value_field (struct value *arg1, int fieldno); 485 486 extern struct value *value_primitive_field (struct value *arg1, int offset, 487 int fieldno, 488 struct type *arg_type); 489 490 491 extern struct type *value_rtti_target_type (struct value *, int *, int *, 492 int *); 493 494 extern struct value *value_full_object (struct value *, struct type *, int, 495 int, int); 496 497 extern struct value *value_cast_pointers (struct type *, struct value *); 498 499 extern struct value *value_cast (struct type *type, struct value *arg2); 500 501 extern struct value *value_reinterpret_cast (struct type *type, 502 struct value *arg); 503 504 extern struct value *value_dynamic_cast (struct type *type, struct value *arg); 505 506 extern struct value *value_zero (struct type *type, enum lval_type lv); 507 508 extern struct value *value_one (struct type *type, enum lval_type lv); 509 510 extern struct value *value_repeat (struct value *arg1, int count); 511 512 extern struct value *value_subscript (struct value *array, LONGEST index); 513 514 extern struct value *value_bitstring_subscript (struct type *type, 515 struct value *bitstring, 516 LONGEST index); 517 518 extern struct value *register_value_being_returned (struct type *valtype, 519 struct regcache *retbuf); 520 521 extern int value_in (struct value *element, struct value *set); 522 523 extern int value_bit_index (struct type *type, const gdb_byte *addr, 524 int index); 525 526 extern int using_struct_return (struct gdbarch *gdbarch, 527 struct type *func_type, 528 struct type *value_type); 529 530 extern struct value *evaluate_expression (struct expression *exp); 531 532 extern struct value *evaluate_type (struct expression *exp); 533 534 extern struct value *evaluate_subexp (struct type *expect_type, 535 struct expression *exp, 536 int *pos, enum noside noside); 537 538 extern struct value *evaluate_subexpression_type (struct expression *exp, 539 int subexp); 540 541 extern void fetch_subexp_value (struct expression *exp, int *pc, 542 struct value **valp, struct value **resultp, 543 struct value **val_chain); 544 545 extern char *extract_field_op (struct expression *exp, int *subexp); 546 547 extern struct value *evaluate_subexp_with_coercion (struct expression *, 548 int *, enum noside); 549 550 extern struct value *parse_and_eval (char *exp); 551 552 extern struct value *parse_to_comma_and_eval (char **expp); 553 554 extern struct type *parse_and_eval_type (char *p, int length); 555 556 extern CORE_ADDR parse_and_eval_address (char *exp); 557 558 extern CORE_ADDR parse_and_eval_address_1 (char **expptr); 559 560 extern LONGEST parse_and_eval_long (char *exp); 561 562 extern void unop_promote (const struct language_defn *language, 563 struct gdbarch *gdbarch, 564 struct value **arg1); 565 566 extern void binop_promote (const struct language_defn *language, 567 struct gdbarch *gdbarch, 568 struct value **arg1, struct value **arg2); 569 570 extern struct value *access_value_history (int num); 571 572 extern struct value *value_of_internalvar (struct gdbarch *gdbarch, 573 struct internalvar *var); 574 575 extern int get_internalvar_integer (struct internalvar *var, LONGEST *l); 576 577 extern void set_internalvar (struct internalvar *var, struct value *val); 578 579 extern void set_internalvar_integer (struct internalvar *var, LONGEST l); 580 581 extern void set_internalvar_string (struct internalvar *var, 582 const char *string); 583 584 extern void clear_internalvar (struct internalvar *var); 585 586 extern void set_internalvar_component (struct internalvar *var, 587 int offset, 588 int bitpos, int bitsize, 589 struct value *newvalue); 590 591 extern struct internalvar *lookup_only_internalvar (const char *name); 592 593 extern struct internalvar *create_internalvar (const char *name); 594 595 typedef struct value * (*internalvar_make_value) (struct gdbarch *, 596 struct internalvar *); 597 extern struct internalvar * 598 create_internalvar_type_lazy (char *name, internalvar_make_value fun); 599 600 extern struct internalvar *lookup_internalvar (const char *name); 601 602 extern int value_equal (struct value *arg1, struct value *arg2); 603 604 extern int value_equal_contents (struct value *arg1, struct value *arg2); 605 606 extern int value_less (struct value *arg1, struct value *arg2); 607 608 extern int value_logical_not (struct value *arg1); 609 610 /* C++ */ 611 612 extern struct value *value_of_this (int complain); 613 614 extern struct value *value_x_binop (struct value *arg1, struct value *arg2, 615 enum exp_opcode op, 616 enum exp_opcode otherop, 617 enum noside noside); 618 619 extern struct value *value_x_unop (struct value *arg1, enum exp_opcode op, 620 enum noside noside); 621 622 extern struct value *value_fn_field (struct value **arg1p, struct fn_field *f, 623 int j, struct type *type, int offset); 624 625 extern int binop_types_user_defined_p (enum exp_opcode op, 626 struct type *type1, 627 struct type *type2); 628 629 extern int binop_user_defined_p (enum exp_opcode op, struct value *arg1, 630 struct value *arg2); 631 632 extern int unop_user_defined_p (enum exp_opcode op, struct value *arg1); 633 634 extern int destructor_name_p (const char *name, const struct type *type); 635 636 extern void value_incref (struct value *val); 637 638 extern void value_free (struct value *val); 639 640 extern void free_all_values (void); 641 642 extern void free_value_chain (struct value *v); 643 644 extern void release_value (struct value *val); 645 646 extern int record_latest_value (struct value *val); 647 648 extern void modify_field (struct type *type, gdb_byte *addr, 649 LONGEST fieldval, int bitpos, int bitsize); 650 651 extern void type_print (struct type *type, char *varstring, 652 struct ui_file *stream, int show); 653 654 extern char *type_to_string (struct type *type); 655 656 extern gdb_byte *baseclass_addr (struct type *type, int index, 657 gdb_byte *valaddr, 658 struct value **valuep, int *errp); 659 660 extern void print_longest (struct ui_file *stream, int format, 661 int use_local, LONGEST val); 662 663 extern void print_floating (const gdb_byte *valaddr, struct type *type, 664 struct ui_file *stream); 665 666 extern void print_decimal_floating (const gdb_byte *valaddr, struct type *type, 667 struct ui_file *stream); 668 669 extern int value_print (struct value *val, struct ui_file *stream, 670 const struct value_print_options *options); 671 672 extern void value_print_array_elements (struct value *val, 673 struct ui_file *stream, int format, 674 enum val_prettyprint pretty); 675 676 extern struct value *value_release_to_mark (struct value *mark); 677 678 extern int val_print (struct type *type, const gdb_byte *valaddr, 679 int embedded_offset, CORE_ADDR address, 680 struct ui_file *stream, int recurse, 681 const struct value *val, 682 const struct value_print_options *options, 683 const struct language_defn *language); 684 685 extern int common_val_print (struct value *val, 686 struct ui_file *stream, int recurse, 687 const struct value_print_options *options, 688 const struct language_defn *language); 689 690 extern int val_print_string (struct type *elttype, CORE_ADDR addr, int len, 691 struct ui_file *stream, 692 const struct value_print_options *options); 693 694 extern void print_variable_and_value (const char *name, 695 struct symbol *var, 696 struct frame_info *frame, 697 struct ui_file *stream, 698 int indent); 699 700 extern int check_field (struct type *, const char *); 701 702 extern void typedef_print (struct type *type, struct symbol *news, 703 struct ui_file *stream); 704 705 extern char *internalvar_name (struct internalvar *var); 706 707 extern void preserve_values (struct objfile *); 708 709 /* From values.c */ 710 711 extern struct value *value_copy (struct value *); 712 713 extern void preserve_one_value (struct value *, struct objfile *, htab_t); 714 715 /* From valops.c */ 716 717 extern struct value *varying_to_slice (struct value *); 718 719 extern struct value *value_slice (struct value *, int, int); 720 721 extern struct value *value_literal_complex (struct value *, struct value *, 722 struct type *); 723 724 extern struct value *find_function_in_inferior (const char *, 725 struct objfile **); 726 727 extern struct value *value_allocate_space_in_inferior (int); 728 729 extern struct value *value_of_local (const char *name, int complain); 730 731 extern struct value *value_subscripted_rvalue (struct value *array, 732 LONGEST index, int lowerbound); 733 734 /* User function handler. */ 735 736 typedef struct value *(*internal_function_fn) (struct gdbarch *gdbarch, 737 const struct language_defn *language, 738 void *cookie, 739 int argc, 740 struct value **argv); 741 742 void add_internal_function (const char *name, const char *doc, 743 internal_function_fn handler, 744 void *cookie); 745 746 struct value *call_internal_function (struct gdbarch *gdbarch, 747 const struct language_defn *language, 748 struct value *function, 749 int argc, struct value **argv); 750 751 char *value_internal_function_name (struct value *); 752 753 #endif /* !defined (VALUE_H) */ 754