Commit | Line | Data |
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c906108c | 1 | /* Definitions for values of C expressions, for GDB. |
dea7f9ba | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
7b6bb8da | 5 | 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
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 | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
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. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #if !defined (VALUE_H) | |
23 | #define VALUE_H 1 | |
24 | ||
dea7f9ba | 25 | #include "doublest.h" |
1df6926e | 26 | #include "frame.h" /* For struct frame_id. */ |
dea7f9ba MK |
27 | |
28 | struct block; | |
da3331ec | 29 | struct expression; |
dea7f9ba | 30 | struct regcache; |
da3331ec AC |
31 | struct symbol; |
32 | struct type; | |
dea7f9ba | 33 | struct ui_file; |
d8ca156b | 34 | struct language_defn; |
79a45b7d | 35 | struct value_print_options; |
d16aafd8 | 36 | |
dea7f9ba MK |
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). */ | |
c906108c | 41 | |
91294c83 | 42 | struct value; |
c906108c | 43 | |
17cf0ecd | 44 | /* Values are stored in a chain, so that they can be deleted easily |
a08702d6 TJB |
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. */ | |
91294c83 | 48 | |
17cf0ecd AC |
49 | struct value *value_next (struct value *); |
50 | ||
91294c83 AC |
51 | /* Type of the value. */ |
52 | ||
0e03807e | 53 | extern struct type *value_type (const struct value *); |
91294c83 | 54 | |
04624583 AC |
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). */ | |
91294c83 | 58 | |
04624583 AC |
59 | extern void deprecated_set_value_type (struct value *value, |
60 | struct type *type); | |
91294c83 AC |
61 | |
62 | /* Only used for bitfields; number of bits contained in them. */ | |
63 | ||
0e03807e | 64 | extern int value_bitsize (const struct value *); |
9bbda503 | 65 | extern void set_value_bitsize (struct value *, int bit); |
91294c83 AC |
66 | |
67 | /* Only used for bitfields; position of start of field. For | |
32c9a795 MD |
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. */ | |
91294c83 | 70 | |
0e03807e | 71 | extern int value_bitpos (const struct value *); |
9bbda503 | 72 | extern void set_value_bitpos (struct value *, int bit); |
f5cf64a7 | 73 | |
4ea48cc1 DJ |
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 | ||
91294c83 AC |
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 | ||
0e03807e | 86 | extern int value_offset (const struct value *); |
f5cf64a7 | 87 | extern void set_value_offset (struct value *, int offset); |
df407dfe | 88 | |
88e3b34b AC |
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? */ | |
91294c83 | 92 | |
88e3b34b AC |
93 | extern int deprecated_value_modifiable (struct value *value); |
94 | extern void deprecated_set_value_modifiable (struct value *value, | |
95 | int modifiable); | |
96 | ||
91294c83 AC |
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 | ||
4754a64e | 138 | extern struct type *value_enclosing_type (struct value *); |
4dfea560 DE |
139 | extern void set_value_enclosing_type (struct value *val, |
140 | struct type *new_type); | |
141 | ||
91294c83 AC |
142 | extern int value_pointed_to_offset (struct value *value); |
143 | extern void set_value_pointed_to_offset (struct value *value, int val); | |
144 | extern int value_embedded_offset (struct value *value); | |
145 | extern void set_value_embedded_offset (struct value *value, int val); | |
146 | ||
5f5233d4 PA |
147 | /* For lval_computed values, this structure holds functions used to |
148 | retrieve and set the value (or portions of the value). | |
149 | ||
150 | For each function, 'V' is the 'this' pointer: an lval_funcs | |
151 | function F may always assume that the V it receives is an | |
152 | lval_computed value, and has F in the appropriate slot of its | |
153 | lval_funcs structure. */ | |
154 | ||
155 | struct lval_funcs | |
156 | { | |
157 | /* Fill in VALUE's contents. This is used to "un-lazy" values. If | |
158 | a problem arises in obtaining VALUE's bits, this function should | |
159 | call 'error'. */ | |
160 | void (*read) (struct value *v); | |
161 | ||
162 | /* Handle an assignment TOVAL = FROMVAL by writing the value of | |
163 | FROMVAL to TOVAL's location. The contents of TOVAL have not yet | |
164 | been updated. If a problem arises in doing so, this function | |
165 | should call 'error'. */ | |
166 | void (*write) (struct value *toval, struct value *fromval); | |
167 | ||
0e03807e TT |
168 | /* Check the validity of some bits in VALUE. This should return 1 |
169 | if all the bits starting at OFFSET and extending for LENGTH bits | |
170 | are valid, or 0 if any bit is invalid. */ | |
171 | int (*check_validity) (const struct value *value, int offset, int length); | |
172 | ||
173 | /* Return 1 if any bit in VALUE is valid, 0 if they are all invalid. */ | |
b65c7efe | 174 | int (*check_any_valid) (const struct value *value); |
0e03807e | 175 | |
8cf6f0b1 TT |
176 | /* If non-NULL, this is used to implement pointer indirection for |
177 | this value. This method may return NULL, in which case value_ind | |
178 | will fall back to ordinary indirection. */ | |
179 | struct value *(*indirect) (struct value *value); | |
180 | ||
181 | /* If non-NULL, this is used to determine whether the indicated bits | |
182 | of VALUE are a synthetic pointer. */ | |
183 | int (*check_synthetic_pointer) (const struct value *value, | |
184 | int offset, int length); | |
185 | ||
5f5233d4 PA |
186 | /* Return a duplicate of VALUE's closure, for use in a new value. |
187 | This may simply return the same closure, if VALUE's is | |
188 | reference-counted or statically allocated. | |
189 | ||
190 | This may be NULL, in which case VALUE's closure is re-used in the | |
191 | new value. */ | |
0e03807e | 192 | void *(*copy_closure) (const struct value *v); |
5f5233d4 PA |
193 | |
194 | /* Drop VALUE's reference to its closure. Maybe this frees the | |
195 | closure; maybe this decrements a reference count; maybe the | |
196 | closure is statically allocated and this does nothing. | |
197 | ||
198 | This may be NULL, in which case no action is taken to free | |
199 | VALUE's closure. */ | |
200 | void (*free_closure) (struct value *v); | |
201 | }; | |
202 | ||
203 | /* Create a computed lvalue, with type TYPE, function pointers FUNCS, | |
204 | and closure CLOSURE. */ | |
205 | ||
206 | extern struct value *allocate_computed_value (struct type *type, | |
207 | struct lval_funcs *funcs, | |
208 | void *closure); | |
209 | ||
210 | /* If VALUE is lval_computed, return its lval_funcs structure. */ | |
211 | ||
212 | extern struct lval_funcs *value_computed_funcs (struct value *value); | |
213 | ||
214 | /* If VALUE is lval_computed, return its closure. The meaning of the | |
215 | returned value depends on the functions VALUE uses. */ | |
216 | ||
0e03807e | 217 | extern void *value_computed_closure (const struct value *value); |
5f5233d4 | 218 | |
91294c83 | 219 | /* If zero, contents of this value are in the contents field. If |
9214ee5f DJ |
220 | nonzero, contents are in inferior. If the lval field is lval_memory, |
221 | the contents are in inferior memory at location.address plus offset. | |
222 | The lval field may also be lval_register. | |
91294c83 AC |
223 | |
224 | WARNING: This field is used by the code which handles watchpoints | |
225 | (see breakpoint.c) to decide whether a particular value can be | |
226 | watched by hardware watchpoints. If the lazy flag is set for some | |
227 | member of a value chain, it is assumed that this member of the | |
228 | chain doesn't need to be watched as part of watching the value | |
229 | itself. This is how GDB avoids watching the entire struct or array | |
230 | when the user wants to watch a single struct member or array | |
231 | element. If you ever change the way lazy flag is set and reset, be | |
232 | sure to consider this use as well! */ | |
233 | ||
d69fe07e | 234 | extern int value_lazy (struct value *); |
dfa52d88 | 235 | extern void set_value_lazy (struct value *value, int val); |
dea7f9ba | 236 | |
4e5d721f DE |
237 | extern int value_stack (struct value *); |
238 | extern void set_value_stack (struct value *value, int val); | |
239 | ||
0fd88904 AC |
240 | /* value_contents() and value_contents_raw() both return the address |
241 | of the gdb buffer used to hold a copy of the contents of the lval. | |
242 | value_contents() is used when the contents of the buffer are needed | |
dea7f9ba | 243 | -- it uses value_fetch_lazy() to load the buffer from the process |
0fd88904 AC |
244 | being debugged if it hasn't already been loaded |
245 | (value_contents_writeable() is used when a writeable but fetched | |
246 | buffer is required).. value_contents_raw() is used when data is | |
247 | being stored into the buffer, or when it is certain that the | |
248 | contents of the buffer are valid. | |
dea7f9ba | 249 | |
c906108c SS |
250 | Note: The contents pointer is adjusted by the offset required to |
251 | get to the real subobject, if the value happens to represent | |
dea7f9ba | 252 | something embedded in a larger run-time object. */ |
c906108c | 253 | |
fc1a4b47 | 254 | extern gdb_byte *value_contents_raw (struct value *); |
91294c83 AC |
255 | |
256 | /* Actual contents of the value. For use of this value; setting it | |
257 | uses the stuff above. Not valid if lazy is nonzero. Target | |
258 | byte-order. We force it to be aligned properly for any possible | |
259 | value. Note that a value therefore extends beyond what is | |
260 | declared here. */ | |
261 | ||
fc1a4b47 AC |
262 | extern const gdb_byte *value_contents (struct value *); |
263 | extern gdb_byte *value_contents_writeable (struct value *); | |
c906108c SS |
264 | |
265 | /* The ALL variants of the above two macros do not adjust the returned | |
dea7f9ba | 266 | pointer by the embedded_offset value. */ |
c5aa993b | 267 | |
fc1a4b47 AC |
268 | extern gdb_byte *value_contents_all_raw (struct value *); |
269 | extern const gdb_byte *value_contents_all (struct value *); | |
c5aa993b | 270 | |
0e03807e TT |
271 | /* Like value_contents_all, but does not require that the returned |
272 | bits be valid. This should only be used in situations where you | |
273 | plan to check the validity manually. */ | |
274 | extern const gdb_byte *value_contents_for_printing (struct value *value); | |
275 | ||
f23631e4 | 276 | extern int value_fetch_lazy (struct value *val); |
a6c442d8 | 277 | extern int value_contents_equal (struct value *val1, struct value *val2); |
c906108c | 278 | |
91294c83 AC |
279 | /* If nonzero, this is the value of a variable which does not actually |
280 | exist in the program. */ | |
feb13ab0 AC |
281 | extern int value_optimized_out (struct value *value); |
282 | extern void set_value_optimized_out (struct value *value, int val); | |
c906108c | 283 | |
0e03807e TT |
284 | /* Like value_optimized_out, but return false if any bit in the object |
285 | is valid. */ | |
286 | extern int value_entirely_optimized_out (const struct value *value); | |
287 | ||
f372da99 | 288 | /* Set or return field indicating whether a variable is initialized or |
581e13c1 | 289 | not, based on debugging information supplied by the compiler. |
f372da99 CT |
290 | 1 = initialized; 0 = uninitialized. */ |
291 | extern int value_initialized (struct value *); | |
292 | extern void set_value_initialized (struct value *, int); | |
293 | ||
74bcbdf3 PA |
294 | /* Set COMPONENT's location as appropriate for a component of WHOLE |
295 | --- regardless of what kind of lvalue WHOLE is. */ | |
296 | extern void set_value_component_location (struct value *component, | |
0e03807e | 297 | const struct value *whole); |
74bcbdf3 | 298 | |
13bb5560 AC |
299 | /* While the following fields are per- VALUE .CONTENT .PIECE (i.e., a |
300 | single value might have multiple LVALs), this hacked interface is | |
301 | limited to just the first PIECE. Expect further change. */ | |
91294c83 AC |
302 | /* Type of value; either not an lval, or one of the various different |
303 | possible kinds of lval. */ | |
13bb5560 AC |
304 | extern enum lval_type *deprecated_value_lval_hack (struct value *); |
305 | #define VALUE_LVAL(val) (*deprecated_value_lval_hack (val)) | |
91294c83 | 306 | |
42ae5230 TT |
307 | /* If lval == lval_memory, return the address in the inferior. If |
308 | lval == lval_register, return the byte offset into the registers | |
309 | structure. Otherwise, return 0. The returned address | |
310 | includes the offset, if any. */ | |
311 | extern CORE_ADDR value_address (struct value *); | |
312 | ||
313 | /* Like value_address, except the result does not include value's | |
314 | offset. */ | |
315 | extern CORE_ADDR value_raw_address (struct value *); | |
316 | ||
317 | /* Set the address of a value. */ | |
318 | extern void set_value_address (struct value *, CORE_ADDR); | |
91294c83 AC |
319 | |
320 | /* Pointer to internal variable. */ | |
13bb5560 AC |
321 | extern struct internalvar **deprecated_value_internalvar_hack (struct value *); |
322 | #define VALUE_INTERNALVAR(val) (*deprecated_value_internalvar_hack (val)) | |
91294c83 AC |
323 | |
324 | /* Frame register value is relative to. This will be described in the | |
325 | lval enum above as "lval_register". */ | |
13bb5560 AC |
326 | extern struct frame_id *deprecated_value_frame_id_hack (struct value *); |
327 | #define VALUE_FRAME_ID(val) (*deprecated_value_frame_id_hack (val)) | |
91294c83 AC |
328 | |
329 | /* Register number if the value is from a register. */ | |
13bb5560 AC |
330 | extern short *deprecated_value_regnum_hack (struct value *); |
331 | #define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val)) | |
332 | ||
dea7f9ba | 333 | /* Convert a REF to the object referenced. */ |
c906108c | 334 | |
994b9211 | 335 | extern struct value *coerce_ref (struct value *value); |
c906108c SS |
336 | |
337 | /* If ARG is an array, convert it to a pointer. | |
c906108c SS |
338 | If ARG is a function, convert it to a function pointer. |
339 | ||
340 | References are dereferenced. */ | |
341 | ||
994b9211 | 342 | extern struct value *coerce_array (struct value *value); |
c906108c | 343 | |
0e03807e TT |
344 | /* Given a value, determine whether the bits starting at OFFSET and |
345 | extending for LENGTH bits are valid. This returns nonzero if all | |
346 | bits in the given range are valid, zero if any bit is invalid. */ | |
347 | ||
348 | extern int value_bits_valid (const struct value *value, | |
349 | int offset, int length); | |
350 | ||
8cf6f0b1 TT |
351 | /* Given a value, determine whether the bits starting at OFFSET and |
352 | extending for LENGTH bits are a synthetic pointer. */ | |
353 | ||
354 | extern int value_bits_synthetic_pointer (const struct value *value, | |
355 | int offset, int length); | |
356 | ||
c906108c | 357 | \f |
c5aa993b | 358 | |
c906108c SS |
359 | #include "symtab.h" |
360 | #include "gdbtypes.h" | |
361 | #include "expression.h" | |
362 | ||
c906108c SS |
363 | struct frame_info; |
364 | struct fn_field; | |
c906108c | 365 | |
5af949e3 UW |
366 | extern void print_address_demangle (struct gdbarch *, CORE_ADDR, |
367 | struct ui_file *, int); | |
c906108c | 368 | |
f23631e4 | 369 | extern LONGEST value_as_long (struct value *val); |
f23631e4 | 370 | extern DOUBLEST value_as_double (struct value *val); |
f23631e4 | 371 | extern CORE_ADDR value_as_address (struct value *val); |
c906108c | 372 | |
fc1a4b47 AC |
373 | extern LONGEST unpack_long (struct type *type, const gdb_byte *valaddr); |
374 | extern DOUBLEST unpack_double (struct type *type, const gdb_byte *valaddr, | |
66140c26 | 375 | int *invp); |
fc1a4b47 | 376 | extern CORE_ADDR unpack_pointer (struct type *type, const gdb_byte *valaddr); |
4ea48cc1 DJ |
377 | LONGEST unpack_bits_as_long (struct type *field_type, const gdb_byte *valaddr, |
378 | int bitpos, int bitsize); | |
8929e59d | 379 | extern LONGEST unpack_field_as_long (struct type *type, |
fc1a4b47 | 380 | const gdb_byte *valaddr, |
a14ed312 | 381 | int fieldno); |
c906108c | 382 | |
14d06750 DJ |
383 | extern void pack_long (gdb_byte *buf, struct type *type, LONGEST num); |
384 | ||
f23631e4 | 385 | extern struct value *value_from_longest (struct type *type, LONGEST num); |
595939de | 386 | extern struct value *value_from_ulongest (struct type *type, ULONGEST num); |
f23631e4 | 387 | extern struct value *value_from_pointer (struct type *type, CORE_ADDR addr); |
f23631e4 | 388 | extern struct value *value_from_double (struct type *type, DOUBLEST num); |
4ef30785 TJB |
389 | extern struct value *value_from_decfloat (struct type *type, |
390 | const gdb_byte *decbytes); | |
0f71a2f6 | 391 | |
00a4c844 AC |
392 | extern struct value *value_at (struct type *type, CORE_ADDR addr); |
393 | extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr); | |
c906108c | 394 | |
8acb6b92 TT |
395 | extern struct value *value_from_contents_and_address (struct type *, |
396 | const gdb_byte *, | |
397 | CORE_ADDR); | |
398 | ||
9acbedc0 UW |
399 | extern struct value *default_value_from_register (struct type *type, |
400 | int regnum, | |
401 | struct frame_info *frame); | |
402 | ||
f23631e4 AC |
403 | extern struct value *value_from_register (struct type *type, int regnum, |
404 | struct frame_info *frame); | |
c906108c | 405 | |
0b2b0195 UW |
406 | extern CORE_ADDR address_from_register (struct type *type, int regnum, |
407 | struct frame_info *frame); | |
408 | ||
f23631e4 | 409 | extern struct value *value_of_variable (struct symbol *var, struct block *b); |
c906108c | 410 | |
61212c0f UW |
411 | extern struct value *address_of_variable (struct symbol *var, struct block *b); |
412 | ||
89f5065b | 413 | extern struct value *value_of_register (int regnum, struct frame_info *frame); |
c906108c | 414 | |
9214ee5f DJ |
415 | struct value *value_of_register_lazy (struct frame_info *frame, int regnum); |
416 | ||
a14ed312 | 417 | extern int symbol_read_needs_frame (struct symbol *); |
c906108c | 418 | |
f23631e4 AC |
419 | extern struct value *read_var_value (struct symbol *var, |
420 | struct frame_info *frame); | |
c906108c | 421 | |
f23631e4 | 422 | extern struct value *allocate_value (struct type *type); |
3e3d7139 JG |
423 | extern struct value *allocate_value_lazy (struct type *type); |
424 | extern void allocate_value_contents (struct value *value); | |
c906108c | 425 | |
f23631e4 | 426 | extern struct value *allocate_repeat_value (struct type *type, int count); |
c906108c | 427 | |
f23631e4 | 428 | extern struct value *value_mark (void); |
c906108c | 429 | |
f23631e4 | 430 | extern void value_free_to_mark (struct value *mark); |
c906108c | 431 | |
3b7538c0 UW |
432 | extern struct value *value_cstring (char *ptr, int len, |
433 | struct type *char_type); | |
434 | extern struct value *value_string (char *ptr, int len, | |
435 | struct type *char_type); | |
22601c15 UW |
436 | extern struct value *value_bitstring (char *ptr, int len, |
437 | struct type *index_type); | |
c906108c | 438 | |
f23631e4 | 439 | extern struct value *value_array (int lowbound, int highbound, |
89f5065b | 440 | struct value **elemvec); |
c906108c | 441 | |
f23631e4 | 442 | extern struct value *value_concat (struct value *arg1, struct value *arg2); |
c906108c | 443 | |
f23631e4 AC |
444 | extern struct value *value_binop (struct value *arg1, struct value *arg2, |
445 | enum exp_opcode op); | |
c906108c | 446 | |
2497b498 | 447 | extern struct value *value_ptradd (struct value *arg1, LONGEST arg2); |
89eef114 UW |
448 | |
449 | extern LONGEST value_ptrdiff (struct value *arg1, struct value *arg2); | |
c906108c | 450 | |
63092375 DJ |
451 | extern int value_must_coerce_to_target (struct value *arg1); |
452 | ||
453 | extern struct value *value_coerce_to_target (struct value *arg1); | |
454 | ||
f23631e4 | 455 | extern struct value *value_coerce_array (struct value *arg1); |
c906108c | 456 | |
f23631e4 | 457 | extern struct value *value_coerce_function (struct value *arg1); |
c906108c | 458 | |
f23631e4 | 459 | extern struct value *value_ind (struct value *arg1); |
c906108c | 460 | |
f23631e4 | 461 | extern struct value *value_addr (struct value *arg1); |
c906108c | 462 | |
fb933624 DJ |
463 | extern struct value *value_ref (struct value *arg1); |
464 | ||
89f5065b AC |
465 | extern struct value *value_assign (struct value *toval, |
466 | struct value *fromval); | |
c906108c | 467 | |
36e9969c NS |
468 | extern struct value *value_pos (struct value *arg1); |
469 | ||
f23631e4 | 470 | extern struct value *value_neg (struct value *arg1); |
c906108c | 471 | |
f23631e4 | 472 | extern struct value *value_complement (struct value *arg1); |
c906108c | 473 | |
f23631e4 AC |
474 | extern struct value *value_struct_elt (struct value **argp, |
475 | struct value **args, | |
714f19d5 TT |
476 | const char *name, int *static_memfuncp, |
477 | const char *err); | |
c906108c | 478 | |
79c2c32d | 479 | extern struct value *value_aggregate_elt (struct type *curtype, |
0d5de010 | 480 | char *name, |
072bba3b | 481 | struct type *expect_type, |
0d5de010 DJ |
482 | int want_address, |
483 | enum noside noside); | |
c906108c | 484 | |
f23631e4 | 485 | extern struct value *value_static_field (struct type *type, int fieldno); |
c906108c | 486 | |
714f19d5 TT |
487 | extern struct fn_field *value_find_oload_method_list (struct value **, |
488 | const char *, | |
4a1970e4 | 489 | int, int *, |
a14ed312 | 490 | struct type **, int *); |
7a292a7a | 491 | |
4c3376c8 SW |
492 | enum oload_search_type { NON_METHOD, METHOD, BOTH }; |
493 | ||
a14ed312 | 494 | extern int find_overload_match (struct type **arg_types, int nargs, |
4c3376c8 SW |
495 | const char *name, |
496 | enum oload_search_type method, int lax, | |
7f8c9282 | 497 | struct value **objp, struct symbol *fsym, |
f23631e4 | 498 | struct value **valp, struct symbol **symp, |
7322dca9 | 499 | int *staticp, const int no_adl); |
c906108c | 500 | |
f23631e4 | 501 | extern struct value *value_field (struct value *arg1, int fieldno); |
c906108c | 502 | |
f23631e4 AC |
503 | extern struct value *value_primitive_field (struct value *arg1, int offset, |
504 | int fieldno, | |
505 | struct type *arg_type); | |
c906108c | 506 | |
c906108c | 507 | |
f23631e4 AC |
508 | extern struct type *value_rtti_target_type (struct value *, int *, int *, |
509 | int *); | |
c906108c | 510 | |
f23631e4 AC |
511 | extern struct value *value_full_object (struct value *, struct type *, int, |
512 | int, int); | |
c906108c | 513 | |
fb933624 DJ |
514 | extern struct value *value_cast_pointers (struct type *, struct value *); |
515 | ||
f23631e4 | 516 | extern struct value *value_cast (struct type *type, struct value *arg2); |
c906108c | 517 | |
4e8f195d TT |
518 | extern struct value *value_reinterpret_cast (struct type *type, |
519 | struct value *arg); | |
520 | ||
521 | extern struct value *value_dynamic_cast (struct type *type, struct value *arg); | |
522 | ||
f23631e4 | 523 | extern struct value *value_zero (struct type *type, enum lval_type lv); |
c906108c | 524 | |
301f0ecf DE |
525 | extern struct value *value_one (struct type *type, enum lval_type lv); |
526 | ||
f23631e4 | 527 | extern struct value *value_repeat (struct value *arg1, int count); |
c906108c | 528 | |
2497b498 | 529 | extern struct value *value_subscript (struct value *array, LONGEST index); |
c906108c | 530 | |
afc05acb UW |
531 | extern struct value *value_bitstring_subscript (struct type *type, |
532 | struct value *bitstring, | |
2497b498 | 533 | LONGEST index); |
afc05acb | 534 | |
5fe830e4 AC |
535 | extern struct value *register_value_being_returned (struct type *valtype, |
536 | struct regcache *retbuf); | |
c906108c | 537 | |
fbb06eb1 | 538 | extern int value_in (struct value *element, struct value *set); |
c906108c | 539 | |
fc1a4b47 | 540 | extern int value_bit_index (struct type *type, const gdb_byte *addr, |
c84141d6 | 541 | int index); |
c906108c | 542 | |
d80b854b UW |
543 | extern int using_struct_return (struct gdbarch *gdbarch, |
544 | struct type *func_type, | |
c055b101 | 545 | struct type *value_type); |
c906108c | 546 | |
f23631e4 | 547 | extern struct value *evaluate_expression (struct expression *exp); |
c906108c | 548 | |
f23631e4 | 549 | extern struct value *evaluate_type (struct expression *exp); |
c906108c | 550 | |
4b27a620 JB |
551 | extern struct value *evaluate_subexp (struct type *expect_type, |
552 | struct expression *exp, | |
553 | int *pos, enum noside noside); | |
554 | ||
65d12d83 TT |
555 | extern struct value *evaluate_subexpression_type (struct expression *exp, |
556 | int subexp); | |
557 | ||
0cf6dd15 TJB |
558 | extern void fetch_subexp_value (struct expression *exp, int *pc, |
559 | struct value **valp, struct value **resultp, | |
560 | struct value **val_chain); | |
561 | ||
65d12d83 TT |
562 | extern char *extract_field_op (struct expression *exp, int *subexp); |
563 | ||
f23631e4 AC |
564 | extern struct value *evaluate_subexp_with_coercion (struct expression *, |
565 | int *, enum noside); | |
c906108c | 566 | |
f23631e4 | 567 | extern struct value *parse_and_eval (char *exp); |
c906108c | 568 | |
f23631e4 | 569 | extern struct value *parse_to_comma_and_eval (char **expp); |
c906108c | 570 | |
a14ed312 | 571 | extern struct type *parse_and_eval_type (char *p, int length); |
c906108c | 572 | |
a14ed312 | 573 | extern CORE_ADDR parse_and_eval_address (char *exp); |
c906108c | 574 | |
a14ed312 | 575 | extern CORE_ADDR parse_and_eval_address_1 (char **expptr); |
c906108c | 576 | |
bb518678 DT |
577 | extern LONGEST parse_and_eval_long (char *exp); |
578 | ||
4066e646 UW |
579 | extern void unop_promote (const struct language_defn *language, |
580 | struct gdbarch *gdbarch, | |
581 | struct value **arg1); | |
582 | ||
583 | extern void binop_promote (const struct language_defn *language, | |
584 | struct gdbarch *gdbarch, | |
585 | struct value **arg1, struct value **arg2); | |
586 | ||
f23631e4 | 587 | extern struct value *access_value_history (int num); |
c906108c | 588 | |
78267919 UW |
589 | extern struct value *value_of_internalvar (struct gdbarch *gdbarch, |
590 | struct internalvar *var); | |
c906108c | 591 | |
4fa62494 UW |
592 | extern int get_internalvar_integer (struct internalvar *var, LONGEST *l); |
593 | ||
f23631e4 | 594 | extern void set_internalvar (struct internalvar *var, struct value *val); |
c906108c | 595 | |
4fa62494 UW |
596 | extern void set_internalvar_integer (struct internalvar *var, LONGEST l); |
597 | ||
78267919 UW |
598 | extern void set_internalvar_string (struct internalvar *var, |
599 | const char *string); | |
600 | ||
4fa62494 UW |
601 | extern void clear_internalvar (struct internalvar *var); |
602 | ||
a14ed312 KB |
603 | extern void set_internalvar_component (struct internalvar *var, |
604 | int offset, | |
605 | int bitpos, int bitsize, | |
f23631e4 | 606 | struct value *newvalue); |
c906108c | 607 | |
bc3b79fd | 608 | extern struct internalvar *lookup_only_internalvar (const char *name); |
c4a3d09a | 609 | |
bc3b79fd | 610 | extern struct internalvar *create_internalvar (const char *name); |
c4a3d09a | 611 | |
78267919 UW |
612 | typedef struct value * (*internalvar_make_value) (struct gdbarch *, |
613 | struct internalvar *); | |
4aa995e1 PA |
614 | extern struct internalvar * |
615 | create_internalvar_type_lazy (char *name, internalvar_make_value fun); | |
616 | ||
bc3b79fd | 617 | extern struct internalvar *lookup_internalvar (const char *name); |
c906108c | 618 | |
f23631e4 | 619 | extern int value_equal (struct value *arg1, struct value *arg2); |
c906108c | 620 | |
218d2fc6 TJB |
621 | extern int value_equal_contents (struct value *arg1, struct value *arg2); |
622 | ||
f23631e4 | 623 | extern int value_less (struct value *arg1, struct value *arg2); |
c906108c | 624 | |
f23631e4 | 625 | extern int value_logical_not (struct value *arg1); |
c906108c SS |
626 | |
627 | /* C++ */ | |
628 | ||
f23631e4 | 629 | extern struct value *value_of_this (int complain); |
c906108c | 630 | |
f23631e4 AC |
631 | extern struct value *value_x_binop (struct value *arg1, struct value *arg2, |
632 | enum exp_opcode op, | |
633 | enum exp_opcode otherop, | |
634 | enum noside noside); | |
c906108c | 635 | |
f23631e4 AC |
636 | extern struct value *value_x_unop (struct value *arg1, enum exp_opcode op, |
637 | enum noside noside); | |
c906108c | 638 | |
89f5065b | 639 | extern struct value *value_fn_field (struct value **arg1p, struct fn_field *f, |
f23631e4 | 640 | int j, struct type *type, int offset); |
c906108c | 641 | |
be636754 PA |
642 | extern int binop_types_user_defined_p (enum exp_opcode op, |
643 | struct type *type1, | |
644 | struct type *type2); | |
645 | ||
f23631e4 AC |
646 | extern int binop_user_defined_p (enum exp_opcode op, struct value *arg1, |
647 | struct value *arg2); | |
c906108c | 648 | |
f23631e4 | 649 | extern int unop_user_defined_p (enum exp_opcode op, struct value *arg1); |
c906108c | 650 | |
a14ed312 | 651 | extern int destructor_name_p (const char *name, const struct type *type); |
c906108c | 652 | |
828d3400 DJ |
653 | extern void value_incref (struct value *val); |
654 | ||
3e3d7139 | 655 | extern void value_free (struct value *val); |
c906108c | 656 | |
a14ed312 | 657 | extern void free_all_values (void); |
c906108c | 658 | |
0cf6dd15 TJB |
659 | extern void free_value_chain (struct value *v); |
660 | ||
f23631e4 | 661 | extern void release_value (struct value *val); |
c906108c | 662 | |
f23631e4 | 663 | extern int record_latest_value (struct value *val); |
c906108c | 664 | |
50810684 UW |
665 | extern void modify_field (struct type *type, gdb_byte *addr, |
666 | LONGEST fieldval, int bitpos, int bitsize); | |
c906108c | 667 | |
89f5065b AC |
668 | extern void type_print (struct type *type, char *varstring, |
669 | struct ui_file *stream, int show); | |
c906108c | 670 | |
ae6a3a4c TJB |
671 | extern char *type_to_string (struct type *type); |
672 | ||
fc1a4b47 AC |
673 | extern gdb_byte *baseclass_addr (struct type *type, int index, |
674 | gdb_byte *valaddr, | |
8929e59d | 675 | struct value **valuep, int *errp); |
c906108c | 676 | |
89f5065b | 677 | extern void print_longest (struct ui_file *stream, int format, |
d9fcf2fb | 678 | int use_local, LONGEST val); |
c906108c | 679 | |
fc1a4b47 | 680 | extern void print_floating (const gdb_byte *valaddr, struct type *type, |
89f5065b | 681 | struct ui_file *stream); |
c906108c | 682 | |
7678ef8f TJB |
683 | extern void print_decimal_floating (const gdb_byte *valaddr, struct type *type, |
684 | struct ui_file *stream); | |
685 | ||
79a45b7d TT |
686 | extern int value_print (struct value *val, struct ui_file *stream, |
687 | const struct value_print_options *options); | |
c906108c | 688 | |
f23631e4 AC |
689 | extern void value_print_array_elements (struct value *val, |
690 | struct ui_file *stream, int format, | |
d9fcf2fb | 691 | enum val_prettyprint pretty); |
c906108c | 692 | |
f23631e4 | 693 | extern struct value *value_release_to_mark (struct value *mark); |
c906108c | 694 | |
fc1a4b47 | 695 | extern int val_print (struct type *type, const gdb_byte *valaddr, |
d9fcf2fb | 696 | int embedded_offset, CORE_ADDR address, |
79a45b7d | 697 | struct ui_file *stream, int recurse, |
0e03807e | 698 | const struct value *val, |
79a45b7d | 699 | const struct value_print_options *options, |
d8ca156b | 700 | const struct language_defn *language); |
c906108c | 701 | |
806048c6 | 702 | extern int common_val_print (struct value *val, |
79a45b7d TT |
703 | struct ui_file *stream, int recurse, |
704 | const struct value_print_options *options, | |
d8ca156b | 705 | const struct language_defn *language); |
806048c6 | 706 | |
09ca9e2e TT |
707 | extern int val_print_string (struct type *elttype, const char *encoding, |
708 | CORE_ADDR addr, int len, | |
79a45b7d TT |
709 | struct ui_file *stream, |
710 | const struct value_print_options *options); | |
c906108c | 711 | |
aad95b57 TT |
712 | extern void print_variable_and_value (const char *name, |
713 | struct symbol *var, | |
714 | struct frame_info *frame, | |
715 | struct ui_file *stream, | |
716 | int indent); | |
c906108c | 717 | |
2b2d9e11 | 718 | extern int check_field (struct type *, const char *); |
c906108c | 719 | |
89f5065b AC |
720 | extern void typedef_print (struct type *type, struct symbol *news, |
721 | struct ui_file *stream); | |
c906108c | 722 | |
a14ed312 | 723 | extern char *internalvar_name (struct internalvar *var); |
c906108c | 724 | |
ae5a43e0 | 725 | extern void preserve_values (struct objfile *); |
c906108c SS |
726 | |
727 | /* From values.c */ | |
728 | ||
f23631e4 | 729 | extern struct value *value_copy (struct value *); |
c906108c | 730 | |
c37f7098 KW |
731 | extern struct value *value_non_lval (struct value *); |
732 | ||
4e7a5ef5 TT |
733 | extern void preserve_one_value (struct value *, struct objfile *, htab_t); |
734 | ||
c906108c SS |
735 | /* From valops.c */ |
736 | ||
f23631e4 | 737 | extern struct value *varying_to_slice (struct value *); |
c906108c | 738 | |
f23631e4 | 739 | extern struct value *value_slice (struct value *, int, int); |
c906108c | 740 | |
f23631e4 AC |
741 | extern struct value *value_literal_complex (struct value *, struct value *, |
742 | struct type *); | |
c906108c | 743 | |
3e3b026f UW |
744 | extern struct value *find_function_in_inferior (const char *, |
745 | struct objfile **); | |
c906108c | 746 | |
f23631e4 | 747 | extern struct value *value_allocate_space_in_inferior (int); |
c906108c | 748 | |
d069f99d AF |
749 | extern struct value *value_of_local (const char *name, int complain); |
750 | ||
2497b498 UW |
751 | extern struct value *value_subscripted_rvalue (struct value *array, |
752 | LONGEST index, int lowerbound); | |
bc3b79fd TJB |
753 | |
754 | /* User function handler. */ | |
755 | ||
d452c4bc UW |
756 | typedef struct value *(*internal_function_fn) (struct gdbarch *gdbarch, |
757 | const struct language_defn *language, | |
758 | void *cookie, | |
bc3b79fd TJB |
759 | int argc, |
760 | struct value **argv); | |
761 | ||
762 | void add_internal_function (const char *name, const char *doc, | |
763 | internal_function_fn handler, | |
764 | void *cookie); | |
765 | ||
d452c4bc UW |
766 | struct value *call_internal_function (struct gdbarch *gdbarch, |
767 | const struct language_defn *language, | |
768 | struct value *function, | |
bc3b79fd TJB |
769 | int argc, struct value **argv); |
770 | ||
771 | char *value_internal_function_name (struct value *); | |
772 | ||
c5aa993b | 773 | #endif /* !defined (VALUE_H) */ |