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c906108c | 1 | /* Definitions for values of C expressions, for GDB. |
dea7f9ba | 2 | |
8acc9f48 | 3 | Copyright (C) 1986-2013 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #if !defined (VALUE_H) | |
21 | #define VALUE_H 1 | |
22 | ||
dea7f9ba | 23 | #include "doublest.h" |
1df6926e | 24 | #include "frame.h" /* For struct frame_id. */ |
dea7f9ba MK |
25 | |
26 | struct block; | |
da3331ec | 27 | struct expression; |
dea7f9ba | 28 | struct regcache; |
da3331ec AC |
29 | struct symbol; |
30 | struct type; | |
dea7f9ba | 31 | struct ui_file; |
d8ca156b | 32 | struct language_defn; |
79a45b7d | 33 | struct value_print_options; |
d16aafd8 | 34 | |
dea7f9ba MK |
35 | /* The structure which defines the type of a value. It should never |
36 | be possible for a program lval value to survive over a call to the | |
37 | inferior (i.e. to be put into the history list or an internal | |
38 | variable). */ | |
c906108c | 39 | |
91294c83 | 40 | struct value; |
c906108c | 41 | |
17cf0ecd | 42 | /* Values are stored in a chain, so that they can be deleted easily |
a08702d6 TJB |
43 | over calls to the inferior. Values assigned to internal variables, |
44 | put into the value history or exposed to Python are taken off this | |
45 | list. */ | |
91294c83 | 46 | |
17cf0ecd AC |
47 | struct value *value_next (struct value *); |
48 | ||
91294c83 AC |
49 | /* Type of the value. */ |
50 | ||
0e03807e | 51 | extern struct type *value_type (const struct value *); |
91294c83 | 52 | |
04624583 AC |
53 | /* This is being used to change the type of an existing value, that |
54 | code should instead be creating a new value with the changed type | |
55 | (but possibly shared content). */ | |
91294c83 | 56 | |
04624583 AC |
57 | extern void deprecated_set_value_type (struct value *value, |
58 | struct type *type); | |
91294c83 AC |
59 | |
60 | /* Only used for bitfields; number of bits contained in them. */ | |
61 | ||
0e03807e | 62 | extern int value_bitsize (const struct value *); |
9bbda503 | 63 | extern void set_value_bitsize (struct value *, int bit); |
91294c83 AC |
64 | |
65 | /* Only used for bitfields; position of start of field. For | |
32c9a795 MD |
66 | gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For |
67 | gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */ | |
91294c83 | 68 | |
0e03807e | 69 | extern int value_bitpos (const struct value *); |
9bbda503 | 70 | extern void set_value_bitpos (struct value *, int bit); |
f5cf64a7 | 71 | |
4ea48cc1 DJ |
72 | /* Only used for bitfields; the containing value. This allows a |
73 | single read from the target when displaying multiple | |
74 | bitfields. */ | |
75 | ||
76 | struct value *value_parent (struct value *); | |
53ba8333 | 77 | extern void set_value_parent (struct value *value, struct value *parent); |
4ea48cc1 | 78 | |
91294c83 AC |
79 | /* Describes offset of a value within lval of a structure in bytes. |
80 | If lval == lval_memory, this is an offset to the address. If lval | |
81 | == lval_register, this is a further offset from location.address | |
82 | within the registers structure. Note also the member | |
83 | embedded_offset below. */ | |
84 | ||
0e03807e | 85 | extern int value_offset (const struct value *); |
f5cf64a7 | 86 | extern void set_value_offset (struct value *, int offset); |
df407dfe | 87 | |
88e3b34b AC |
88 | /* The comment from "struct value" reads: ``Is it modifiable? Only |
89 | relevant if lval != not_lval.''. Shouldn't the value instead be | |
90 | not_lval and be done with it? */ | |
91294c83 | 91 | |
88e3b34b | 92 | extern int deprecated_value_modifiable (struct value *value); |
88e3b34b | 93 | |
91294c83 AC |
94 | /* If a value represents a C++ object, then the `type' field gives the |
95 | object's compile-time type. If the object actually belongs to some | |
96 | class derived from `type', perhaps with other base classes and | |
97 | additional members, then `type' is just a subobject of the real | |
98 | thing, and the full object is probably larger than `type' would | |
99 | suggest. | |
100 | ||
101 | If `type' is a dynamic class (i.e. one with a vtable), then GDB can | |
102 | actually determine the object's run-time type by looking at the | |
103 | run-time type information in the vtable. When this information is | |
104 | available, we may elect to read in the entire object, for several | |
105 | reasons: | |
106 | ||
107 | - When printing the value, the user would probably rather see the | |
108 | full object, not just the limited portion apparent from the | |
109 | compile-time type. | |
110 | ||
111 | - If `type' has virtual base classes, then even printing `type' | |
112 | alone may require reaching outside the `type' portion of the | |
113 | object to wherever the virtual base class has been stored. | |
114 | ||
115 | When we store the entire object, `enclosing_type' is the run-time | |
116 | type -- the complete object -- and `embedded_offset' is the offset | |
117 | of `type' within that larger type, in bytes. The value_contents() | |
118 | macro takes `embedded_offset' into account, so most GDB code | |
119 | continues to see the `type' portion of the value, just as the | |
120 | inferior would. | |
121 | ||
122 | If `type' is a pointer to an object, then `enclosing_type' is a | |
123 | pointer to the object's run-time type, and `pointed_to_offset' is | |
124 | the offset in bytes from the full object to the pointed-to object | |
125 | -- that is, the value `embedded_offset' would have if we followed | |
126 | the pointer and fetched the complete object. (I don't really see | |
127 | the point. Why not just determine the run-time type when you | |
128 | indirect, and avoid the special case? The contents don't matter | |
129 | until you indirect anyway.) | |
130 | ||
131 | If we're not doing anything fancy, `enclosing_type' is equal to | |
132 | `type', and `embedded_offset' is zero, so everything works | |
133 | normally. */ | |
134 | ||
4754a64e | 135 | extern struct type *value_enclosing_type (struct value *); |
4dfea560 DE |
136 | extern void set_value_enclosing_type (struct value *val, |
137 | struct type *new_type); | |
138 | ||
8264ba82 AG |
139 | /* Returns value_type or value_enclosing_type depending on |
140 | value_print_options.objectprint. | |
141 | ||
142 | If RESOLVE_SIMPLE_TYPES is 0 the enclosing type will be resolved | |
143 | only for pointers and references, else it will be returned | |
144 | for all the types (e.g. structures). This option is useful | |
145 | to prevent retrieving enclosing type for the base classes fields. | |
146 | ||
147 | REAL_TYPE_FOUND is used to inform whether the real type was found | |
148 | (or just static type was used). The NULL may be passed if it is not | |
149 | necessary. */ | |
150 | ||
151 | extern struct type *value_actual_type (struct value *value, | |
152 | int resolve_simple_types, | |
153 | int *real_type_found); | |
154 | ||
91294c83 AC |
155 | extern int value_pointed_to_offset (struct value *value); |
156 | extern void set_value_pointed_to_offset (struct value *value, int val); | |
157 | extern int value_embedded_offset (struct value *value); | |
158 | extern void set_value_embedded_offset (struct value *value, int val); | |
159 | ||
5f5233d4 PA |
160 | /* For lval_computed values, this structure holds functions used to |
161 | retrieve and set the value (or portions of the value). | |
162 | ||
163 | For each function, 'V' is the 'this' pointer: an lval_funcs | |
164 | function F may always assume that the V it receives is an | |
165 | lval_computed value, and has F in the appropriate slot of its | |
166 | lval_funcs structure. */ | |
167 | ||
168 | struct lval_funcs | |
169 | { | |
170 | /* Fill in VALUE's contents. This is used to "un-lazy" values. If | |
171 | a problem arises in obtaining VALUE's bits, this function should | |
ac71a68c JK |
172 | call 'error'. If it is NULL value_fetch_lazy on "un-lazy" |
173 | non-optimized-out value is an internal error. */ | |
5f5233d4 PA |
174 | void (*read) (struct value *v); |
175 | ||
176 | /* Handle an assignment TOVAL = FROMVAL by writing the value of | |
177 | FROMVAL to TOVAL's location. The contents of TOVAL have not yet | |
178 | been updated. If a problem arises in doing so, this function | |
ac71a68c JK |
179 | should call 'error'. If it is NULL such TOVAL assignment is an error as |
180 | TOVAL is not considered as an lvalue. */ | |
5f5233d4 PA |
181 | void (*write) (struct value *toval, struct value *fromval); |
182 | ||
0e03807e TT |
183 | /* Check the validity of some bits in VALUE. This should return 1 |
184 | if all the bits starting at OFFSET and extending for LENGTH bits | |
185 | are valid, or 0 if any bit is invalid. */ | |
186 | int (*check_validity) (const struct value *value, int offset, int length); | |
187 | ||
188 | /* Return 1 if any bit in VALUE is valid, 0 if they are all invalid. */ | |
b65c7efe | 189 | int (*check_any_valid) (const struct value *value); |
0e03807e | 190 | |
8cf6f0b1 TT |
191 | /* If non-NULL, this is used to implement pointer indirection for |
192 | this value. This method may return NULL, in which case value_ind | |
193 | will fall back to ordinary indirection. */ | |
194 | struct value *(*indirect) (struct value *value); | |
195 | ||
a471c594 JK |
196 | /* If non-NULL, this is used to implement reference resolving for |
197 | this value. This method may return NULL, in which case coerce_ref | |
198 | will fall back to ordinary references resolving. */ | |
199 | struct value *(*coerce_ref) (const struct value *value); | |
200 | ||
8cf6f0b1 TT |
201 | /* If non-NULL, this is used to determine whether the indicated bits |
202 | of VALUE are a synthetic pointer. */ | |
203 | int (*check_synthetic_pointer) (const struct value *value, | |
204 | int offset, int length); | |
205 | ||
5f5233d4 PA |
206 | /* Return a duplicate of VALUE's closure, for use in a new value. |
207 | This may simply return the same closure, if VALUE's is | |
208 | reference-counted or statically allocated. | |
209 | ||
210 | This may be NULL, in which case VALUE's closure is re-used in the | |
211 | new value. */ | |
0e03807e | 212 | void *(*copy_closure) (const struct value *v); |
5f5233d4 PA |
213 | |
214 | /* Drop VALUE's reference to its closure. Maybe this frees the | |
215 | closure; maybe this decrements a reference count; maybe the | |
216 | closure is statically allocated and this does nothing. | |
217 | ||
218 | This may be NULL, in which case no action is taken to free | |
219 | VALUE's closure. */ | |
220 | void (*free_closure) (struct value *v); | |
221 | }; | |
222 | ||
223 | /* Create a computed lvalue, with type TYPE, function pointers FUNCS, | |
224 | and closure CLOSURE. */ | |
225 | ||
226 | extern struct value *allocate_computed_value (struct type *type, | |
c8f2448a JK |
227 | const struct lval_funcs *funcs, |
228 | void *closure); | |
5f5233d4 | 229 | |
a72c8f6a JK |
230 | /* Helper function to check the validity of some bits of a value. |
231 | ||
232 | If TYPE represents some aggregate type (e.g., a structure), return 1. | |
233 | ||
234 | Otherwise, any of the bytes starting at OFFSET and extending for | |
235 | TYPE_LENGTH(TYPE) bytes are invalid, print a message to STREAM and | |
236 | return 0. The checking is done using FUNCS. | |
237 | ||
238 | Otherwise, return 1. */ | |
239 | ||
240 | extern int valprint_check_validity (struct ui_file *stream, struct type *type, | |
241 | int embedded_offset, | |
242 | const struct value *val); | |
243 | ||
a7035dbb JK |
244 | extern struct value *allocate_optimized_out_value (struct type *type); |
245 | ||
5f5233d4 PA |
246 | /* If VALUE is lval_computed, return its lval_funcs structure. */ |
247 | ||
a471c594 | 248 | extern const struct lval_funcs *value_computed_funcs (const struct value *); |
5f5233d4 PA |
249 | |
250 | /* If VALUE is lval_computed, return its closure. The meaning of the | |
251 | returned value depends on the functions VALUE uses. */ | |
252 | ||
0e03807e | 253 | extern void *value_computed_closure (const struct value *value); |
5f5233d4 | 254 | |
91294c83 | 255 | /* If zero, contents of this value are in the contents field. If |
9214ee5f DJ |
256 | nonzero, contents are in inferior. If the lval field is lval_memory, |
257 | the contents are in inferior memory at location.address plus offset. | |
258 | The lval field may also be lval_register. | |
91294c83 AC |
259 | |
260 | WARNING: This field is used by the code which handles watchpoints | |
261 | (see breakpoint.c) to decide whether a particular value can be | |
262 | watched by hardware watchpoints. If the lazy flag is set for some | |
263 | member of a value chain, it is assumed that this member of the | |
264 | chain doesn't need to be watched as part of watching the value | |
265 | itself. This is how GDB avoids watching the entire struct or array | |
266 | when the user wants to watch a single struct member or array | |
267 | element. If you ever change the way lazy flag is set and reset, be | |
268 | sure to consider this use as well! */ | |
269 | ||
d69fe07e | 270 | extern int value_lazy (struct value *); |
dfa52d88 | 271 | extern void set_value_lazy (struct value *value, int val); |
dea7f9ba | 272 | |
4e5d721f DE |
273 | extern int value_stack (struct value *); |
274 | extern void set_value_stack (struct value *value, int val); | |
275 | ||
901461f8 PA |
276 | /* Throw an error complaining that the value has been optimized |
277 | out. */ | |
278 | ||
279 | extern void error_value_optimized_out (void); | |
280 | ||
0fd88904 AC |
281 | /* value_contents() and value_contents_raw() both return the address |
282 | of the gdb buffer used to hold a copy of the contents of the lval. | |
283 | value_contents() is used when the contents of the buffer are needed | |
dea7f9ba | 284 | -- it uses value_fetch_lazy() to load the buffer from the process |
0fd88904 AC |
285 | being debugged if it hasn't already been loaded |
286 | (value_contents_writeable() is used when a writeable but fetched | |
287 | buffer is required).. value_contents_raw() is used when data is | |
288 | being stored into the buffer, or when it is certain that the | |
289 | contents of the buffer are valid. | |
dea7f9ba | 290 | |
c906108c SS |
291 | Note: The contents pointer is adjusted by the offset required to |
292 | get to the real subobject, if the value happens to represent | |
dea7f9ba | 293 | something embedded in a larger run-time object. */ |
c906108c | 294 | |
fc1a4b47 | 295 | extern gdb_byte *value_contents_raw (struct value *); |
91294c83 AC |
296 | |
297 | /* Actual contents of the value. For use of this value; setting it | |
298 | uses the stuff above. Not valid if lazy is nonzero. Target | |
299 | byte-order. We force it to be aligned properly for any possible | |
300 | value. Note that a value therefore extends beyond what is | |
301 | declared here. */ | |
302 | ||
fc1a4b47 AC |
303 | extern const gdb_byte *value_contents (struct value *); |
304 | extern gdb_byte *value_contents_writeable (struct value *); | |
c906108c SS |
305 | |
306 | /* The ALL variants of the above two macros do not adjust the returned | |
dea7f9ba | 307 | pointer by the embedded_offset value. */ |
c5aa993b | 308 | |
fc1a4b47 AC |
309 | extern gdb_byte *value_contents_all_raw (struct value *); |
310 | extern const gdb_byte *value_contents_all (struct value *); | |
c5aa993b | 311 | |
0e03807e TT |
312 | /* Like value_contents_all, but does not require that the returned |
313 | bits be valid. This should only be used in situations where you | |
314 | plan to check the validity manually. */ | |
315 | extern const gdb_byte *value_contents_for_printing (struct value *value); | |
316 | ||
de4127a3 PA |
317 | /* Like value_contents_for_printing, but accepts a constant value |
318 | pointer. Unlike value_contents_for_printing however, the pointed | |
319 | value must _not_ be lazy. */ | |
320 | extern const gdb_byte * | |
321 | value_contents_for_printing_const (const struct value *value); | |
322 | ||
f23631e4 | 323 | extern int value_fetch_lazy (struct value *val); |
a6c442d8 | 324 | extern int value_contents_equal (struct value *val1, struct value *val2); |
c906108c | 325 | |
91294c83 | 326 | /* If nonzero, this is the value of a variable which does not actually |
eca07816 JB |
327 | exist in the program, at least partially. If the value is lazy, |
328 | this may fetch it now. */ | |
feb13ab0 AC |
329 | extern int value_optimized_out (struct value *value); |
330 | extern void set_value_optimized_out (struct value *value, int val); | |
c906108c | 331 | |
eca07816 JB |
332 | /* Like value_optimized_out, but don't fetch the value even if it is |
333 | lazy. Mainly useful for constructing other values using VALUE as | |
334 | template. */ | |
335 | extern int value_optimized_out_const (const struct value *value); | |
336 | ||
0e03807e TT |
337 | /* Like value_optimized_out, but return false if any bit in the object |
338 | is valid. */ | |
339 | extern int value_entirely_optimized_out (const struct value *value); | |
340 | ||
f372da99 | 341 | /* Set or return field indicating whether a variable is initialized or |
581e13c1 | 342 | not, based on debugging information supplied by the compiler. |
f372da99 CT |
343 | 1 = initialized; 0 = uninitialized. */ |
344 | extern int value_initialized (struct value *); | |
345 | extern void set_value_initialized (struct value *, int); | |
346 | ||
74bcbdf3 PA |
347 | /* Set COMPONENT's location as appropriate for a component of WHOLE |
348 | --- regardless of what kind of lvalue WHOLE is. */ | |
349 | extern void set_value_component_location (struct value *component, | |
0e03807e | 350 | const struct value *whole); |
74bcbdf3 | 351 | |
13bb5560 AC |
352 | /* While the following fields are per- VALUE .CONTENT .PIECE (i.e., a |
353 | single value might have multiple LVALs), this hacked interface is | |
354 | limited to just the first PIECE. Expect further change. */ | |
91294c83 AC |
355 | /* Type of value; either not an lval, or one of the various different |
356 | possible kinds of lval. */ | |
13bb5560 AC |
357 | extern enum lval_type *deprecated_value_lval_hack (struct value *); |
358 | #define VALUE_LVAL(val) (*deprecated_value_lval_hack (val)) | |
91294c83 | 359 | |
a471c594 JK |
360 | /* Like VALUE_LVAL, except the parameter can be const. */ |
361 | extern enum lval_type value_lval_const (const struct value *value); | |
362 | ||
42ae5230 TT |
363 | /* If lval == lval_memory, return the address in the inferior. If |
364 | lval == lval_register, return the byte offset into the registers | |
365 | structure. Otherwise, return 0. The returned address | |
366 | includes the offset, if any. */ | |
de4127a3 | 367 | extern CORE_ADDR value_address (const struct value *); |
42ae5230 TT |
368 | |
369 | /* Like value_address, except the result does not include value's | |
370 | offset. */ | |
371 | extern CORE_ADDR value_raw_address (struct value *); | |
372 | ||
373 | /* Set the address of a value. */ | |
374 | extern void set_value_address (struct value *, CORE_ADDR); | |
91294c83 AC |
375 | |
376 | /* Pointer to internal variable. */ | |
13bb5560 AC |
377 | extern struct internalvar **deprecated_value_internalvar_hack (struct value *); |
378 | #define VALUE_INTERNALVAR(val) (*deprecated_value_internalvar_hack (val)) | |
91294c83 AC |
379 | |
380 | /* Frame register value is relative to. This will be described in the | |
381 | lval enum above as "lval_register". */ | |
13bb5560 AC |
382 | extern struct frame_id *deprecated_value_frame_id_hack (struct value *); |
383 | #define VALUE_FRAME_ID(val) (*deprecated_value_frame_id_hack (val)) | |
91294c83 AC |
384 | |
385 | /* Register number if the value is from a register. */ | |
13bb5560 AC |
386 | extern short *deprecated_value_regnum_hack (struct value *); |
387 | #define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val)) | |
388 | ||
a471c594 JK |
389 | /* Return value after lval_funcs->coerce_ref (after check_typedef). Return |
390 | NULL if lval_funcs->coerce_ref is not applicable for whatever reason. */ | |
391 | ||
392 | extern struct value *coerce_ref_if_computed (const struct value *arg); | |
393 | ||
dfcee124 AG |
394 | /* Setup a new value type and enclosing value type for dereferenced value VALUE. |
395 | ENC_TYPE is the new enclosing type that should be set. ORIGINAL_TYPE and | |
396 | ORIGINAL_VAL are the type and value of the original reference or pointer. | |
397 | ||
398 | Note, that VALUE is modified by this function. | |
399 | ||
400 | It is a common implementation for coerce_ref and value_ind. */ | |
401 | ||
402 | extern struct value * readjust_indirect_value_type (struct value *value, | |
403 | struct type *enc_type, | |
404 | struct type *original_type, | |
405 | struct value *original_val); | |
406 | ||
dea7f9ba | 407 | /* Convert a REF to the object referenced. */ |
c906108c | 408 | |
994b9211 | 409 | extern struct value *coerce_ref (struct value *value); |
c906108c SS |
410 | |
411 | /* If ARG is an array, convert it to a pointer. | |
c906108c SS |
412 | If ARG is a function, convert it to a function pointer. |
413 | ||
414 | References are dereferenced. */ | |
415 | ||
994b9211 | 416 | extern struct value *coerce_array (struct value *value); |
c906108c | 417 | |
0e03807e TT |
418 | /* Given a value, determine whether the bits starting at OFFSET and |
419 | extending for LENGTH bits are valid. This returns nonzero if all | |
420 | bits in the given range are valid, zero if any bit is invalid. */ | |
421 | ||
422 | extern int value_bits_valid (const struct value *value, | |
423 | int offset, int length); | |
424 | ||
8cf6f0b1 TT |
425 | /* Given a value, determine whether the bits starting at OFFSET and |
426 | extending for LENGTH bits are a synthetic pointer. */ | |
427 | ||
428 | extern int value_bits_synthetic_pointer (const struct value *value, | |
429 | int offset, int length); | |
430 | ||
4e07d55f PA |
431 | /* Given a value, determine whether the contents bytes starting at |
432 | OFFSET and extending for LENGTH bytes are available. This returns | |
433 | nonzero if all bytes in the given range are available, zero if any | |
434 | byte is unavailable. */ | |
435 | ||
436 | extern int value_bytes_available (const struct value *value, | |
437 | int offset, int length); | |
438 | ||
ec0a52e1 PA |
439 | /* Like value_bytes_available, but return false if any byte in the |
440 | whole object is unavailable. */ | |
441 | extern int value_entirely_available (struct value *value); | |
442 | ||
6211c335 YQ |
443 | /* Like value_entirely_available, but return false if any byte in the |
444 | whole object is available. */ | |
445 | extern int value_entirely_unavailable (struct value *value); | |
446 | ||
4e07d55f PA |
447 | /* Mark VALUE's content bytes starting at OFFSET and extending for |
448 | LENGTH bytes as unavailable. */ | |
449 | ||
450 | extern void mark_value_bytes_unavailable (struct value *value, | |
451 | int offset, int length); | |
c8c1c22f PA |
452 | |
453 | /* Compare LENGTH bytes of VAL1's contents starting at OFFSET1 with | |
cd24cfaa PA |
454 | LENGTH bytes of VAL2's contents starting at OFFSET2. |
455 | ||
456 | Note that "contents" refers to the whole value's contents | |
457 | (value_contents_all), without any embedded offset adjustment. For | |
458 | example, to compare a complete object value with itself, including | |
459 | its enclosing type chunk, you'd do: | |
460 | ||
461 | int len = TYPE_LENGTH (check_typedef (value_enclosing_type (val))); | |
462 | value_available_contents (val, 0, val, 0, len); | |
463 | ||
464 | Returns true iff the set of available contents match. Unavailable | |
465 | contents compare equal with unavailable contents, and different | |
466 | with any available byte. For example, if 'x's represent an | |
467 | unavailable byte, and 'V' and 'Z' represent different available | |
468 | bytes, in a value with length 16: | |
c8c1c22f PA |
469 | |
470 | offset: 0 4 8 12 16 | |
471 | contents: xxxxVVVVxxxxVVZZ | |
472 | ||
473 | then: | |
474 | ||
475 | value_available_contents_eq(val, 0, val, 8, 6) => 1 | |
476 | value_available_contents_eq(val, 0, val, 4, 4) => 1 | |
477 | value_available_contents_eq(val, 0, val, 8, 8) => 0 | |
478 | value_available_contents_eq(val, 4, val, 12, 2) => 1 | |
479 | value_available_contents_eq(val, 4, val, 12, 4) => 0 | |
480 | value_available_contents_eq(val, 3, val, 4, 4) => 0 | |
4eb59108 PA |
481 | |
482 | We only know whether a value chunk is available if we've tried to | |
483 | read it. As this routine is used by printing routines, which may | |
484 | be printing values in the value history, long after the inferior is | |
485 | gone, it works with const values. Therefore, this routine must not | |
486 | be called with lazy values. */ | |
c8c1c22f PA |
487 | |
488 | extern int value_available_contents_eq (const struct value *val1, int offset1, | |
489 | const struct value *val2, int offset2, | |
490 | int length); | |
4e07d55f | 491 | |
e6ca34fc PA |
492 | /* Read LENGTH bytes of memory starting at MEMADDR into BUFFER, which |
493 | is (or will be copied to) VAL's contents buffer offset by | |
494 | EMBEDDED_OFFSET (that is, to &VAL->contents[EMBEDDED_OFFSET]). | |
495 | Marks value contents ranges as unavailable if the corresponding | |
496 | memory is likewise unavailable. STACK indicates whether the memory | |
497 | is known to be stack memory. */ | |
498 | ||
424447ee | 499 | extern void read_value_memory (struct value *val, int embedded_offset, |
e6ca34fc PA |
500 | int stack, CORE_ADDR memaddr, |
501 | gdb_byte *buffer, size_t length); | |
502 | ||
8954db33 AB |
503 | /* Cast SCALAR_VALUE to the element type of VECTOR_TYPE, then replicate |
504 | into each element of a new vector value with VECTOR_TYPE. */ | |
505 | ||
506 | struct value *value_vector_widen (struct value *scalar_value, | |
507 | struct type *vector_type); | |
508 | ||
c906108c | 509 | \f |
c5aa993b | 510 | |
c906108c SS |
511 | #include "symtab.h" |
512 | #include "gdbtypes.h" | |
513 | #include "expression.h" | |
514 | ||
c906108c SS |
515 | struct frame_info; |
516 | struct fn_field; | |
c906108c | 517 | |
9cb709b6 TT |
518 | extern int print_address_demangle (const struct value_print_options *, |
519 | struct gdbarch *, CORE_ADDR, | |
520 | struct ui_file *, int); | |
c906108c | 521 | |
f23631e4 | 522 | extern LONGEST value_as_long (struct value *val); |
f23631e4 | 523 | extern DOUBLEST value_as_double (struct value *val); |
f23631e4 | 524 | extern CORE_ADDR value_as_address (struct value *val); |
c906108c | 525 | |
fc1a4b47 AC |
526 | extern LONGEST unpack_long (struct type *type, const gdb_byte *valaddr); |
527 | extern DOUBLEST unpack_double (struct type *type, const gdb_byte *valaddr, | |
66140c26 | 528 | int *invp); |
fc1a4b47 | 529 | extern CORE_ADDR unpack_pointer (struct type *type, const gdb_byte *valaddr); |
5467c6c8 PA |
530 | |
531 | extern int unpack_value_bits_as_long (struct type *field_type, | |
532 | const gdb_byte *valaddr, | |
533 | int embedded_offset, int bitpos, | |
534 | int bitsize, | |
535 | const struct value *original_value, | |
536 | LONGEST *result); | |
537 | ||
8929e59d | 538 | extern LONGEST unpack_field_as_long (struct type *type, |
fc1a4b47 | 539 | const gdb_byte *valaddr, |
a14ed312 | 540 | int fieldno); |
5467c6c8 PA |
541 | extern int unpack_value_field_as_long (struct type *type, const gdb_byte *valaddr, |
542 | int embedded_offset, int fieldno, | |
543 | const struct value *val, LONGEST *result); | |
544 | ||
545 | extern struct value *value_field_bitfield (struct type *type, int fieldno, | |
546 | const gdb_byte *valaddr, | |
547 | int embedded_offset, | |
548 | const struct value *val); | |
c906108c | 549 | |
14d06750 DJ |
550 | extern void pack_long (gdb_byte *buf, struct type *type, LONGEST num); |
551 | ||
f23631e4 | 552 | extern struct value *value_from_longest (struct type *type, LONGEST num); |
595939de | 553 | extern struct value *value_from_ulongest (struct type *type, ULONGEST num); |
f23631e4 | 554 | extern struct value *value_from_pointer (struct type *type, CORE_ADDR addr); |
f23631e4 | 555 | extern struct value *value_from_double (struct type *type, DOUBLEST num); |
4ef30785 TJB |
556 | extern struct value *value_from_decfloat (struct type *type, |
557 | const gdb_byte *decbytes); | |
3bd0f5ef | 558 | extern struct value *value_from_history_ref (char *, char **); |
0f71a2f6 | 559 | |
00a4c844 AC |
560 | extern struct value *value_at (struct type *type, CORE_ADDR addr); |
561 | extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr); | |
c906108c | 562 | |
8acb6b92 TT |
563 | extern struct value *value_from_contents_and_address (struct type *, |
564 | const gdb_byte *, | |
565 | CORE_ADDR); | |
8a9b8146 | 566 | extern struct value *value_from_contents (struct type *, const gdb_byte *); |
8acb6b92 | 567 | |
9acbedc0 UW |
568 | extern struct value *default_value_from_register (struct type *type, |
569 | int regnum, | |
570 | struct frame_info *frame); | |
571 | ||
b56d6f31 JB |
572 | extern void read_frame_register_value (struct value *value, |
573 | struct frame_info *frame); | |
574 | ||
f23631e4 AC |
575 | extern struct value *value_from_register (struct type *type, int regnum, |
576 | struct frame_info *frame); | |
c906108c | 577 | |
0b2b0195 UW |
578 | extern CORE_ADDR address_from_register (struct type *type, int regnum, |
579 | struct frame_info *frame); | |
580 | ||
9df2fbc4 PM |
581 | extern struct value *value_of_variable (struct symbol *var, |
582 | const struct block *b); | |
c906108c | 583 | |
270140bd TT |
584 | extern struct value *address_of_variable (struct symbol *var, |
585 | const struct block *b); | |
61212c0f | 586 | |
89f5065b | 587 | extern struct value *value_of_register (int regnum, struct frame_info *frame); |
c906108c | 588 | |
9214ee5f DJ |
589 | struct value *value_of_register_lazy (struct frame_info *frame, int regnum); |
590 | ||
a14ed312 | 591 | extern int symbol_read_needs_frame (struct symbol *); |
c906108c | 592 | |
f23631e4 AC |
593 | extern struct value *read_var_value (struct symbol *var, |
594 | struct frame_info *frame); | |
c906108c | 595 | |
a5ee536b JB |
596 | extern struct value *default_read_var_value (struct symbol *var, |
597 | struct frame_info *frame); | |
598 | ||
f23631e4 | 599 | extern struct value *allocate_value (struct type *type); |
3e3d7139 | 600 | extern struct value *allocate_value_lazy (struct type *type); |
39d37385 PA |
601 | extern void value_contents_copy (struct value *dst, int dst_offset, |
602 | struct value *src, int src_offset, | |
603 | int length); | |
604 | extern void value_contents_copy_raw (struct value *dst, int dst_offset, | |
605 | struct value *src, int src_offset, | |
606 | int length); | |
c906108c | 607 | |
f23631e4 | 608 | extern struct value *allocate_repeat_value (struct type *type, int count); |
c906108c | 609 | |
f23631e4 | 610 | extern struct value *value_mark (void); |
c906108c | 611 | |
f23631e4 | 612 | extern void value_free_to_mark (struct value *mark); |
c906108c | 613 | |
63375b74 | 614 | extern struct value *value_cstring (char *ptr, ssize_t len, |
3b7538c0 | 615 | struct type *char_type); |
63375b74 | 616 | extern struct value *value_string (char *ptr, ssize_t len, |
3b7538c0 | 617 | struct type *char_type); |
c906108c | 618 | |
f23631e4 | 619 | extern struct value *value_array (int lowbound, int highbound, |
89f5065b | 620 | struct value **elemvec); |
c906108c | 621 | |
f23631e4 | 622 | extern struct value *value_concat (struct value *arg1, struct value *arg2); |
c906108c | 623 | |
f23631e4 AC |
624 | extern struct value *value_binop (struct value *arg1, struct value *arg2, |
625 | enum exp_opcode op); | |
c906108c | 626 | |
2497b498 | 627 | extern struct value *value_ptradd (struct value *arg1, LONGEST arg2); |
89eef114 UW |
628 | |
629 | extern LONGEST value_ptrdiff (struct value *arg1, struct value *arg2); | |
c906108c | 630 | |
63092375 DJ |
631 | extern int value_must_coerce_to_target (struct value *arg1); |
632 | ||
633 | extern struct value *value_coerce_to_target (struct value *arg1); | |
634 | ||
f23631e4 | 635 | extern struct value *value_coerce_array (struct value *arg1); |
c906108c | 636 | |
f23631e4 | 637 | extern struct value *value_coerce_function (struct value *arg1); |
c906108c | 638 | |
f23631e4 | 639 | extern struct value *value_ind (struct value *arg1); |
c906108c | 640 | |
f23631e4 | 641 | extern struct value *value_addr (struct value *arg1); |
c906108c | 642 | |
fb933624 DJ |
643 | extern struct value *value_ref (struct value *arg1); |
644 | ||
89f5065b AC |
645 | extern struct value *value_assign (struct value *toval, |
646 | struct value *fromval); | |
c906108c | 647 | |
36e9969c NS |
648 | extern struct value *value_pos (struct value *arg1); |
649 | ||
f23631e4 | 650 | extern struct value *value_neg (struct value *arg1); |
c906108c | 651 | |
f23631e4 | 652 | extern struct value *value_complement (struct value *arg1); |
c906108c | 653 | |
f23631e4 AC |
654 | extern struct value *value_struct_elt (struct value **argp, |
655 | struct value **args, | |
714f19d5 TT |
656 | const char *name, int *static_memfuncp, |
657 | const char *err); | |
c906108c | 658 | |
79c2c32d | 659 | extern struct value *value_aggregate_elt (struct type *curtype, |
0d5de010 | 660 | char *name, |
072bba3b | 661 | struct type *expect_type, |
0d5de010 DJ |
662 | int want_address, |
663 | enum noside noside); | |
c906108c | 664 | |
f23631e4 | 665 | extern struct value *value_static_field (struct type *type, int fieldno); |
c906108c | 666 | |
4c3376c8 SW |
667 | enum oload_search_type { NON_METHOD, METHOD, BOTH }; |
668 | ||
da096638 | 669 | extern int find_overload_match (struct value **args, int nargs, |
4c3376c8 | 670 | const char *name, |
28c64fc2 | 671 | enum oload_search_type method, |
7f8c9282 | 672 | struct value **objp, struct symbol *fsym, |
f23631e4 | 673 | struct value **valp, struct symbol **symp, |
7322dca9 | 674 | int *staticp, const int no_adl); |
c906108c | 675 | |
f23631e4 | 676 | extern struct value *value_field (struct value *arg1, int fieldno); |
c906108c | 677 | |
f23631e4 AC |
678 | extern struct value *value_primitive_field (struct value *arg1, int offset, |
679 | int fieldno, | |
680 | struct type *arg_type); | |
c906108c | 681 | |
c906108c | 682 | |
dfcee124 AG |
683 | extern struct type *value_rtti_indirect_type (struct value *, int *, int *, |
684 | int *); | |
c906108c | 685 | |
f23631e4 AC |
686 | extern struct value *value_full_object (struct value *, struct type *, int, |
687 | int, int); | |
c906108c | 688 | |
b1af9e97 | 689 | extern struct value *value_cast_pointers (struct type *, struct value *, int); |
fb933624 | 690 | |
f23631e4 | 691 | extern struct value *value_cast (struct type *type, struct value *arg2); |
c906108c | 692 | |
4e8f195d TT |
693 | extern struct value *value_reinterpret_cast (struct type *type, |
694 | struct value *arg); | |
695 | ||
696 | extern struct value *value_dynamic_cast (struct type *type, struct value *arg); | |
697 | ||
f23631e4 | 698 | extern struct value *value_zero (struct type *type, enum lval_type lv); |
c906108c | 699 | |
18a46dbe | 700 | extern struct value *value_one (struct type *type); |
301f0ecf | 701 | |
f23631e4 | 702 | extern struct value *value_repeat (struct value *arg1, int count); |
c906108c | 703 | |
2497b498 | 704 | extern struct value *value_subscript (struct value *array, LONGEST index); |
c906108c | 705 | |
afc05acb UW |
706 | extern struct value *value_bitstring_subscript (struct type *type, |
707 | struct value *bitstring, | |
2497b498 | 708 | LONGEST index); |
afc05acb | 709 | |
5fe830e4 AC |
710 | extern struct value *register_value_being_returned (struct type *valtype, |
711 | struct regcache *retbuf); | |
c906108c | 712 | |
fbb06eb1 | 713 | extern int value_in (struct value *element, struct value *set); |
c906108c | 714 | |
fc1a4b47 | 715 | extern int value_bit_index (struct type *type, const gdb_byte *addr, |
c84141d6 | 716 | int index); |
c906108c | 717 | |
bbfdfe1c DM |
718 | extern enum return_value_convention |
719 | struct_return_convention (struct gdbarch *gdbarch, struct value *function, | |
720 | struct type *value_type); | |
721 | ||
d80b854b | 722 | extern int using_struct_return (struct gdbarch *gdbarch, |
6a3a010b | 723 | struct value *function, |
c055b101 | 724 | struct type *value_type); |
c906108c | 725 | |
f23631e4 | 726 | extern struct value *evaluate_expression (struct expression *exp); |
c906108c | 727 | |
f23631e4 | 728 | extern struct value *evaluate_type (struct expression *exp); |
c906108c | 729 | |
4b27a620 JB |
730 | extern struct value *evaluate_subexp (struct type *expect_type, |
731 | struct expression *exp, | |
732 | int *pos, enum noside noside); | |
733 | ||
65d12d83 TT |
734 | extern struct value *evaluate_subexpression_type (struct expression *exp, |
735 | int subexp); | |
736 | ||
0cf6dd15 TJB |
737 | extern void fetch_subexp_value (struct expression *exp, int *pc, |
738 | struct value **valp, struct value **resultp, | |
3a1115a0 TT |
739 | struct value **val_chain, |
740 | int preserve_errors); | |
0cf6dd15 | 741 | |
65d12d83 TT |
742 | extern char *extract_field_op (struct expression *exp, int *subexp); |
743 | ||
f23631e4 AC |
744 | extern struct value *evaluate_subexp_with_coercion (struct expression *, |
745 | int *, enum noside); | |
c906108c | 746 | |
bbc13ae3 | 747 | extern struct value *parse_and_eval (const char *exp); |
c906108c | 748 | |
bbc13ae3 | 749 | extern struct value *parse_to_comma_and_eval (const char **expp); |
c906108c | 750 | |
a14ed312 | 751 | extern struct type *parse_and_eval_type (char *p, int length); |
c906108c | 752 | |
bbc13ae3 | 753 | extern CORE_ADDR parse_and_eval_address (const char *exp); |
c906108c | 754 | |
a1b8c4cc | 755 | extern LONGEST parse_and_eval_long (const char *exp); |
bb518678 | 756 | |
4066e646 UW |
757 | extern void unop_promote (const struct language_defn *language, |
758 | struct gdbarch *gdbarch, | |
759 | struct value **arg1); | |
760 | ||
761 | extern void binop_promote (const struct language_defn *language, | |
762 | struct gdbarch *gdbarch, | |
763 | struct value **arg1, struct value **arg2); | |
764 | ||
f23631e4 | 765 | extern struct value *access_value_history (int num); |
c906108c | 766 | |
78267919 UW |
767 | extern struct value *value_of_internalvar (struct gdbarch *gdbarch, |
768 | struct internalvar *var); | |
c906108c | 769 | |
4fa62494 UW |
770 | extern int get_internalvar_integer (struct internalvar *var, LONGEST *l); |
771 | ||
f23631e4 | 772 | extern void set_internalvar (struct internalvar *var, struct value *val); |
c906108c | 773 | |
4fa62494 UW |
774 | extern void set_internalvar_integer (struct internalvar *var, LONGEST l); |
775 | ||
78267919 UW |
776 | extern void set_internalvar_string (struct internalvar *var, |
777 | const char *string); | |
778 | ||
4fa62494 UW |
779 | extern void clear_internalvar (struct internalvar *var); |
780 | ||
a14ed312 KB |
781 | extern void set_internalvar_component (struct internalvar *var, |
782 | int offset, | |
783 | int bitpos, int bitsize, | |
f23631e4 | 784 | struct value *newvalue); |
c906108c | 785 | |
bc3b79fd | 786 | extern struct internalvar *lookup_only_internalvar (const char *name); |
c4a3d09a | 787 | |
bc3b79fd | 788 | extern struct internalvar *create_internalvar (const char *name); |
c4a3d09a | 789 | |
d55637df TT |
790 | extern VEC (char_ptr) *complete_internalvar (const char *name); |
791 | ||
22d2b532 SDJ |
792 | /* An internalvar can be dynamically computed by supplying a vector of |
793 | function pointers to perform various operations. */ | |
794 | ||
795 | struct internalvar_funcs | |
796 | { | |
797 | /* Compute the value of the variable. The DATA argument passed to | |
798 | the function is the same argument that was passed to | |
799 | `create_internalvar_type_lazy'. */ | |
800 | ||
801 | struct value *(*make_value) (struct gdbarch *arch, | |
802 | struct internalvar *var, | |
803 | void *data); | |
804 | ||
805 | /* Update the agent expression EXPR with bytecode to compute the | |
806 | value. VALUE is the agent value we are updating. The DATA | |
807 | argument passed to this function is the same argument that was | |
808 | passed to `create_internalvar_type_lazy'. If this pointer is | |
809 | NULL, then the internalvar cannot be compiled to an agent | |
810 | expression. */ | |
811 | ||
812 | void (*compile_to_ax) (struct internalvar *var, | |
813 | struct agent_expr *expr, | |
814 | struct axs_value *value, | |
815 | void *data); | |
816 | ||
817 | /* If non-NULL, this is called to destroy DATA. The DATA argument | |
818 | passed to this function is the same argument that was passed to | |
819 | `create_internalvar_type_lazy'. */ | |
820 | ||
821 | void (*destroy) (void *data); | |
822 | }; | |
823 | ||
73033f12 SDJ |
824 | extern struct internalvar *create_internalvar_type_lazy (const char *name, |
825 | const struct internalvar_funcs *funcs, | |
826 | void *data); | |
22d2b532 SDJ |
827 | |
828 | /* Compile an internal variable to an agent expression. VAR is the | |
829 | variable to compile; EXPR and VALUE are the agent expression we are | |
830 | updating. This will return 0 if there is no known way to compile | |
831 | VAR, and 1 if VAR was successfully compiled. It may also throw an | |
832 | exception on error. */ | |
833 | ||
834 | extern int compile_internalvar_to_ax (struct internalvar *var, | |
835 | struct agent_expr *expr, | |
836 | struct axs_value *value); | |
4aa995e1 | 837 | |
bc3b79fd | 838 | extern struct internalvar *lookup_internalvar (const char *name); |
c906108c | 839 | |
f23631e4 | 840 | extern int value_equal (struct value *arg1, struct value *arg2); |
c906108c | 841 | |
218d2fc6 TJB |
842 | extern int value_equal_contents (struct value *arg1, struct value *arg2); |
843 | ||
f23631e4 | 844 | extern int value_less (struct value *arg1, struct value *arg2); |
c906108c | 845 | |
f23631e4 | 846 | extern int value_logical_not (struct value *arg1); |
c906108c SS |
847 | |
848 | /* C++ */ | |
849 | ||
85bc8cb7 JK |
850 | extern struct value *value_of_this (const struct language_defn *lang); |
851 | ||
852 | extern struct value *value_of_this_silent (const struct language_defn *lang); | |
c906108c | 853 | |
f23631e4 AC |
854 | extern struct value *value_x_binop (struct value *arg1, struct value *arg2, |
855 | enum exp_opcode op, | |
856 | enum exp_opcode otherop, | |
857 | enum noside noside); | |
c906108c | 858 | |
f23631e4 AC |
859 | extern struct value *value_x_unop (struct value *arg1, enum exp_opcode op, |
860 | enum noside noside); | |
c906108c | 861 | |
89f5065b | 862 | extern struct value *value_fn_field (struct value **arg1p, struct fn_field *f, |
f23631e4 | 863 | int j, struct type *type, int offset); |
c906108c | 864 | |
be636754 PA |
865 | extern int binop_types_user_defined_p (enum exp_opcode op, |
866 | struct type *type1, | |
867 | struct type *type2); | |
868 | ||
f23631e4 AC |
869 | extern int binop_user_defined_p (enum exp_opcode op, struct value *arg1, |
870 | struct value *arg2); | |
c906108c | 871 | |
f23631e4 | 872 | extern int unop_user_defined_p (enum exp_opcode op, struct value *arg1); |
c906108c | 873 | |
d8228535 | 874 | extern int destructor_name_p (const char *name, struct type *type); |
c906108c | 875 | |
828d3400 DJ |
876 | extern void value_incref (struct value *val); |
877 | ||
3e3d7139 | 878 | extern void value_free (struct value *val); |
c906108c | 879 | |
a14ed312 | 880 | extern void free_all_values (void); |
c906108c | 881 | |
0cf6dd15 TJB |
882 | extern void free_value_chain (struct value *v); |
883 | ||
f23631e4 | 884 | extern void release_value (struct value *val); |
c906108c | 885 | |
e848a8a5 TT |
886 | extern void release_value_or_incref (struct value *val); |
887 | ||
f23631e4 | 888 | extern int record_latest_value (struct value *val); |
c906108c | 889 | |
50810684 UW |
890 | extern void modify_field (struct type *type, gdb_byte *addr, |
891 | LONGEST fieldval, int bitpos, int bitsize); | |
c906108c | 892 | |
0d5cff50 | 893 | extern void type_print (struct type *type, const char *varstring, |
89f5065b | 894 | struct ui_file *stream, int show); |
c906108c | 895 | |
ae6a3a4c TJB |
896 | extern char *type_to_string (struct type *type); |
897 | ||
fc1a4b47 AC |
898 | extern gdb_byte *baseclass_addr (struct type *type, int index, |
899 | gdb_byte *valaddr, | |
8929e59d | 900 | struct value **valuep, int *errp); |
c906108c | 901 | |
89f5065b | 902 | extern void print_longest (struct ui_file *stream, int format, |
d9fcf2fb | 903 | int use_local, LONGEST val); |
c906108c | 904 | |
fc1a4b47 | 905 | extern void print_floating (const gdb_byte *valaddr, struct type *type, |
89f5065b | 906 | struct ui_file *stream); |
c906108c | 907 | |
7678ef8f TJB |
908 | extern void print_decimal_floating (const gdb_byte *valaddr, struct type *type, |
909 | struct ui_file *stream); | |
910 | ||
8e069a98 TT |
911 | extern void value_print (struct value *val, struct ui_file *stream, |
912 | const struct value_print_options *options); | |
c906108c | 913 | |
f23631e4 AC |
914 | extern void value_print_array_elements (struct value *val, |
915 | struct ui_file *stream, int format, | |
2a998fc0 | 916 | enum val_prettyformat pretty); |
c906108c | 917 | |
f23631e4 | 918 | extern struct value *value_release_to_mark (struct value *mark); |
c906108c | 919 | |
35c0084b TT |
920 | extern void val_print (struct type *type, const gdb_byte *valaddr, |
921 | int embedded_offset, CORE_ADDR address, | |
922 | struct ui_file *stream, int recurse, | |
923 | const struct value *val, | |
924 | const struct value_print_options *options, | |
925 | const struct language_defn *language); | |
c906108c | 926 | |
a1f5dd1b TT |
927 | extern void common_val_print (struct value *val, |
928 | struct ui_file *stream, int recurse, | |
929 | const struct value_print_options *options, | |
930 | const struct language_defn *language); | |
806048c6 | 931 | |
09ca9e2e TT |
932 | extern int val_print_string (struct type *elttype, const char *encoding, |
933 | CORE_ADDR addr, int len, | |
79a45b7d TT |
934 | struct ui_file *stream, |
935 | const struct value_print_options *options); | |
c906108c | 936 | |
aad95b57 TT |
937 | extern void print_variable_and_value (const char *name, |
938 | struct symbol *var, | |
939 | struct frame_info *frame, | |
940 | struct ui_file *stream, | |
941 | int indent); | |
c906108c | 942 | |
89f5065b AC |
943 | extern void typedef_print (struct type *type, struct symbol *news, |
944 | struct ui_file *stream); | |
c906108c | 945 | |
a14ed312 | 946 | extern char *internalvar_name (struct internalvar *var); |
c906108c | 947 | |
ae5a43e0 | 948 | extern void preserve_values (struct objfile *); |
c906108c SS |
949 | |
950 | /* From values.c */ | |
951 | ||
f23631e4 | 952 | extern struct value *value_copy (struct value *); |
c906108c | 953 | |
c37f7098 KW |
954 | extern struct value *value_non_lval (struct value *); |
955 | ||
4e7a5ef5 TT |
956 | extern void preserve_one_value (struct value *, struct objfile *, htab_t); |
957 | ||
c906108c SS |
958 | /* From valops.c */ |
959 | ||
f23631e4 | 960 | extern struct value *varying_to_slice (struct value *); |
c906108c | 961 | |
f23631e4 | 962 | extern struct value *value_slice (struct value *, int, int); |
c906108c | 963 | |
f23631e4 AC |
964 | extern struct value *value_literal_complex (struct value *, struct value *, |
965 | struct type *); | |
c906108c | 966 | |
3e3b026f UW |
967 | extern struct value *find_function_in_inferior (const char *, |
968 | struct objfile **); | |
c906108c | 969 | |
f23631e4 | 970 | extern struct value *value_allocate_space_in_inferior (int); |
c906108c | 971 | |
2497b498 UW |
972 | extern struct value *value_subscripted_rvalue (struct value *array, |
973 | LONGEST index, int lowerbound); | |
bc3b79fd TJB |
974 | |
975 | /* User function handler. */ | |
976 | ||
d452c4bc UW |
977 | typedef struct value *(*internal_function_fn) (struct gdbarch *gdbarch, |
978 | const struct language_defn *language, | |
979 | void *cookie, | |
bc3b79fd TJB |
980 | int argc, |
981 | struct value **argv); | |
982 | ||
983 | void add_internal_function (const char *name, const char *doc, | |
984 | internal_function_fn handler, | |
985 | void *cookie); | |
986 | ||
d452c4bc UW |
987 | struct value *call_internal_function (struct gdbarch *gdbarch, |
988 | const struct language_defn *language, | |
989 | struct value *function, | |
bc3b79fd TJB |
990 | int argc, struct value **argv); |
991 | ||
992 | char *value_internal_function_name (struct value *); | |
993 | ||
c5aa993b | 994 | #endif /* !defined (VALUE_H) */ |