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c906108c | 1 | /* Source-language-related definitions for GDB. |
1bac305b | 2 | |
ecd75fc8 | 3 | Copyright (C) 1991-2014 Free Software Foundation, Inc. |
1bac305b | 4 | |
c906108c SS |
5 | Contributed by the Department of Computer Science at the State University |
6 | of New York at Buffalo. | |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #if !defined (LANGUAGE_H) | |
24 | #define LANGUAGE_H 1 | |
25 | ||
671afef6 JB |
26 | #include "symtab.h" |
27 | ||
1777feb0 | 28 | /* Forward decls for prototypes. */ |
c906108c SS |
29 | struct value; |
30 | struct objfile; | |
52f729a7 | 31 | struct frame_info; |
c906108c | 32 | struct expression; |
da3331ec | 33 | struct ui_file; |
79a45b7d | 34 | struct value_print_options; |
79d43c61 | 35 | struct type_print_options; |
a53b64ea | 36 | struct lang_varobj_ops; |
410a0ff2 | 37 | struct parser_state; |
62dfaa9c | 38 | |
1777feb0 | 39 | #define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */ |
c906108c SS |
40 | |
41 | /* range_mode == | |
42 | range_mode_auto: range_check set automatically to default of language. | |
43 | range_mode_manual: range_check set manually by user. */ | |
44 | ||
c5aa993b JM |
45 | extern enum range_mode |
46 | { | |
47 | range_mode_auto, range_mode_manual | |
48 | } | |
49 | range_mode; | |
c906108c SS |
50 | |
51 | /* range_check == | |
52 | range_check_on: Ranges are checked in GDB expressions, producing errors. | |
53 | range_check_warn: Ranges are checked, producing warnings. | |
54 | range_check_off: Ranges are not checked in GDB expressions. */ | |
55 | ||
56 | extern enum range_check | |
c5aa993b JM |
57 | { |
58 | range_check_off, range_check_warn, range_check_on | |
59 | } | |
60 | range_check; | |
c906108c | 61 | |
63872f9d | 62 | /* case_mode == |
1777feb0 | 63 | case_mode_auto: case_sensitivity set upon selection of scope. |
63872f9d JG |
64 | case_mode_manual: case_sensitivity set only by user. */ |
65 | ||
66 | extern enum case_mode | |
67 | { | |
68 | case_mode_auto, case_mode_manual | |
69 | } | |
70 | case_mode; | |
71 | ||
7ca2d3a3 | 72 | /* array_ordering == |
1777feb0 MS |
73 | array_row_major: Arrays are in row major order. |
74 | array_column_major: Arrays are in column major order. */ | |
7ca2d3a3 DL |
75 | |
76 | extern enum array_ordering | |
77 | { | |
78 | array_row_major, array_column_major | |
79 | } | |
80 | array_ordering; | |
81 | ||
82 | ||
63872f9d | 83 | /* case_sensitivity == |
1777feb0 MS |
84 | case_sensitive_on: Case sensitivity in name matching is used. |
85 | case_sensitive_off: Case sensitivity in name matching is not used. */ | |
63872f9d JG |
86 | |
87 | extern enum case_sensitivity | |
88 | { | |
89 | case_sensitive_on, case_sensitive_off | |
90 | } | |
91 | case_sensitivity; | |
9a044a89 TT |
92 | |
93 | ||
94 | /* macro_expansion == | |
1777feb0 MS |
95 | macro_expansion_no: No macro expansion is available. |
96 | macro_expansion_c: C-like macro expansion is available. */ | |
9a044a89 TT |
97 | |
98 | enum macro_expansion | |
99 | { | |
100 | macro_expansion_no, macro_expansion_c | |
101 | }; | |
102 | ||
c906108c | 103 | \f |
f290d38e AC |
104 | /* Per architecture (OS/ABI) language information. */ |
105 | ||
106 | struct language_arch_info | |
107 | { | |
5a44ea29 | 108 | /* Its primitive types. This is a vector ended by a NULL pointer. |
f290d38e AC |
109 | These types can be specified by name in parsing types in |
110 | expressions, regardless of whether the program being debugged | |
111 | actually defines such a type. */ | |
5a44ea29 | 112 | struct type **primitive_type_vector; |
1777feb0 | 113 | /* Type of elements of strings. */ |
f290d38e | 114 | struct type *string_char_type; |
fbb06eb1 UW |
115 | |
116 | /* Symbol name of type to use as boolean type, if defined. */ | |
117 | const char *bool_type_symbol; | |
118 | /* Otherwise, this is the default boolean builtin type. */ | |
119 | struct type *bool_type_default; | |
f290d38e AC |
120 | }; |
121 | ||
74ccd7f5 JB |
122 | /* A pointer to a function expected to return nonzero if |
123 | SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME. | |
124 | ||
125 | SYMBOL_SEARCH_NAME should be a symbol's "search" name. | |
126 | LOOKUP_NAME should be the name of an entity after it has been | |
127 | transformed for lookup. */ | |
128 | ||
1a119f36 | 129 | typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name, |
74ccd7f5 JB |
130 | const char *lookup_name); |
131 | ||
c906108c SS |
132 | /* Structure tying together assorted information about a language. */ |
133 | ||
134 | struct language_defn | |
c5aa993b | 135 | { |
1777feb0 | 136 | /* Name of the language. */ |
c906108c | 137 | |
27cd387b | 138 | const char *la_name; |
c906108c | 139 | |
6abde28f YQ |
140 | /* Natural or official name of the language. */ |
141 | ||
142 | const char *la_natural_name; | |
143 | ||
1777feb0 | 144 | /* its symtab language-enum (defs.h). */ |
c906108c | 145 | |
c5aa993b | 146 | enum language la_language; |
c906108c | 147 | |
1777feb0 | 148 | /* Default range checking. */ |
c906108c | 149 | |
c5aa993b | 150 | enum range_check la_range_check; |
c906108c | 151 | |
1777feb0 | 152 | /* Default case sensitivity. */ |
63872f9d JG |
153 | enum case_sensitivity la_case_sensitivity; |
154 | ||
1777feb0 | 155 | /* Multi-dimensional array ordering. */ |
7ca2d3a3 DL |
156 | enum array_ordering la_array_ordering; |
157 | ||
9a044a89 TT |
158 | /* Style of macro expansion, if any, supported by this language. */ |
159 | enum macro_expansion la_macro_expansion; | |
160 | ||
5f9769d1 | 161 | /* Definitions related to expression printing, prefixifying, and |
1777feb0 | 162 | dumping. */ |
5f9769d1 PH |
163 | |
164 | const struct exp_descriptor *la_exp_desc; | |
165 | ||
1777feb0 | 166 | /* Parser function. */ |
c906108c | 167 | |
410a0ff2 | 168 | int (*la_parser) (struct parser_state *); |
c906108c | 169 | |
1777feb0 | 170 | /* Parser error function. */ |
c906108c | 171 | |
507f3c78 | 172 | void (*la_error) (char *); |
c906108c | 173 | |
e85c3284 PH |
174 | /* Given an expression *EXPP created by prefixifying the result of |
175 | la_parser, perform any remaining processing necessary to complete | |
176 | its translation. *EXPP may change; la_post_parser is responsible | |
177 | for releasing its previous contents, if necessary. If | |
178 | VOID_CONTEXT_P, then no value is expected from the expression. */ | |
179 | ||
180 | void (*la_post_parser) (struct expression ** expp, int void_context_p); | |
181 | ||
3e43a32a MS |
182 | void (*la_printchar) (int ch, struct type *chtype, |
183 | struct ui_file * stream); | |
c906108c | 184 | |
6c7a06a3 TT |
185 | void (*la_printstr) (struct ui_file * stream, struct type *elttype, |
186 | const gdb_byte *string, unsigned int length, | |
be759fcf | 187 | const char *encoding, int force_ellipses, |
79a45b7d | 188 | const struct value_print_options *); |
c906108c | 189 | |
6c7a06a3 TT |
190 | void (*la_emitchar) (int ch, struct type *chtype, |
191 | struct ui_file * stream, int quoter); | |
c906108c | 192 | |
1777feb0 | 193 | /* Print a type using syntax appropriate for this language. */ |
c906108c | 194 | |
25b524e8 | 195 | void (*la_print_type) (struct type *, const char *, struct ui_file *, int, |
79d43c61 | 196 | int, const struct type_print_options *); |
c906108c | 197 | |
5c6ce71d TT |
198 | /* Print a typedef using syntax appropriate for this language. |
199 | TYPE is the underlying type. NEW_SYMBOL is the symbol naming | |
200 | the type. STREAM is the output stream on which to print. */ | |
201 | ||
202 | void (*la_print_typedef) (struct type *type, struct symbol *new_symbol, | |
203 | struct ui_file *stream); | |
204 | ||
edf3d5f3 TT |
205 | /* Print a value using syntax appropriate for this language. |
206 | ||
207 | TYPE is the type of the sub-object to be printed. | |
c906108c | 208 | |
edf3d5f3 TT |
209 | CONTENTS holds the bits of the value. This holds the entire |
210 | enclosing object. | |
211 | ||
212 | EMBEDDED_OFFSET is the offset into the outermost object of the | |
213 | sub-object represented by TYPE. This is the object which this | |
214 | call should print. Note that the enclosing type is not | |
215 | available. | |
216 | ||
217 | ADDRESS is the address in the inferior of the enclosing object. | |
218 | ||
219 | STREAM is the stream on which the value is to be printed. | |
220 | ||
221 | RECURSE is the recursion depth. It is zero-based. | |
222 | ||
223 | OPTIONS are the formatting options to be used when | |
224 | printing. */ | |
225 | ||
d3eab38a TT |
226 | void (*la_val_print) (struct type *type, |
227 | const gdb_byte *contents, | |
228 | int embedded_offset, CORE_ADDR address, | |
229 | struct ui_file *stream, int recurse, | |
230 | const struct value *val, | |
231 | const struct value_print_options *options); | |
c906108c | 232 | |
1777feb0 | 233 | /* Print a top-level value using syntax appropriate for this language. */ |
c906108c | 234 | |
8e069a98 TT |
235 | void (*la_value_print) (struct value *, struct ui_file *, |
236 | const struct value_print_options *); | |
c906108c | 237 | |
a5ee536b JB |
238 | /* Given a symbol VAR, and a stack frame id FRAME, read the value |
239 | of the variable an return (pointer to a) struct value containing | |
240 | the value. | |
241 | ||
242 | Throw an error if the variable cannot be found. */ | |
243 | ||
244 | struct value *(*la_read_var_value) (struct symbol *var, | |
245 | struct frame_info *frame); | |
246 | ||
f636b87d AF |
247 | /* PC is possibly an unknown languages trampoline. |
248 | If that PC falls in a trampoline belonging to this language, | |
249 | return the address of the first pc in the real function, or 0 | |
250 | if it isn't a language tramp for this language. */ | |
52f729a7 | 251 | CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR); |
f636b87d | 252 | |
5f9a71c3 DC |
253 | /* Now come some hooks for lookup_symbol. */ |
254 | ||
2b2d9e11 VP |
255 | /* If this is non-NULL, specifies the name that of the implicit |
256 | local variable that refers to the current object instance. */ | |
5f9a71c3 | 257 | |
2b2d9e11 | 258 | char *la_name_of_this; |
5f9a71c3 DC |
259 | |
260 | /* This is a function that lookup_symbol will call when it gets to | |
261 | the part of symbol lookup where C looks up static and global | |
262 | variables. */ | |
263 | ||
264 | struct symbol *(*la_lookup_symbol_nonlocal) (const char *, | |
5f9a71c3 | 265 | const struct block *, |
21b556f4 | 266 | const domain_enum); |
5f9a71c3 | 267 | |
b368761e DC |
268 | /* Find the definition of the type with the given name. */ |
269 | struct type *(*la_lookup_transparent_type) (const char *); | |
270 | ||
9a3d7dfd AF |
271 | /* Return demangled language symbol, or NULL. */ |
272 | char *(*la_demangle) (const char *mangled, int options); | |
273 | ||
31c27f77 JJ |
274 | /* Return class name of a mangled method name or NULL. */ |
275 | char *(*la_class_name_from_physname) (const char *physname); | |
276 | ||
1777feb0 | 277 | /* Table for printing expressions. */ |
c906108c | 278 | |
c5aa993b | 279 | const struct op_print *la_op_print_tab; |
c906108c | 280 | |
c5aa993b | 281 | /* Zero if the language has first-class arrays. True if there are no |
1777feb0 | 282 | array values, and array objects decay to pointers, as in C. */ |
c906108c | 283 | |
c5aa993b | 284 | char c_style_arrays; |
c906108c | 285 | |
1777feb0 | 286 | /* Index to use for extracting the first element of a string. */ |
c5aa993b | 287 | char string_lower_bound; |
c906108c | 288 | |
6084f43a JB |
289 | /* The list of characters forming word boundaries. */ |
290 | char *(*la_word_break_characters) (void); | |
291 | ||
49c4e619 TT |
292 | /* Should return a vector of all symbols which are possible |
293 | completions for TEXT. WORD is the entire command on which the | |
2f68a895 TT |
294 | completion is being made. If CODE is TYPE_CODE_UNDEF, then all |
295 | symbols should be examined; otherwise, only STRUCT_DOMAIN | |
296 | symbols whose type has a code of CODE should be matched. */ | |
6f937416 PA |
297 | VEC (char_ptr) *(*la_make_symbol_completion_list) (const char *text, |
298 | const char *word, | |
2f68a895 | 299 | enum type_code code); |
41d27058 | 300 | |
f290d38e AC |
301 | /* The per-architecture (OS/ABI) language information. */ |
302 | void (*la_language_arch_info) (struct gdbarch *, | |
303 | struct language_arch_info *); | |
304 | ||
e79af960 JB |
305 | /* Print the index of an element of an array. */ |
306 | void (*la_print_array_index) (struct value *index_value, | |
307 | struct ui_file *stream, | |
79a45b7d | 308 | const struct value_print_options *options); |
e79af960 | 309 | |
41f1b697 DJ |
310 | /* Return non-zero if TYPE should be passed (and returned) by |
311 | reference at the language level. */ | |
312 | int (*la_pass_by_reference) (struct type *type); | |
313 | ||
ae6a3a4c | 314 | /* Obtain a string from the inferior, storing it in a newly allocated |
fbb8f299 PM |
315 | buffer in BUFFER, which should be freed by the caller. If the |
316 | in- and out-parameter *LENGTH is specified at -1, the string is | |
317 | read until a null character of the appropriate width is found - | |
318 | otherwise the string is read to the length of characters specified. | |
319 | On completion, *LENGTH will hold the size of the string in characters. | |
320 | If a *LENGTH of -1 was specified it will count only actual | |
321 | characters, excluding any eventual terminating null character. | |
322 | Otherwise *LENGTH will include all characters - including any nulls. | |
323 | CHARSET will hold the encoding used in the string. */ | |
ae6a3a4c | 324 | void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 325 | struct type **chartype, const char **charset); |
ae6a3a4c | 326 | |
74ccd7f5 JB |
327 | /* Return a pointer to the function that should be used to match |
328 | a symbol name against LOOKUP_NAME. This is mostly for languages | |
329 | such as Ada where the matching algorithm depends on LOOKUP_NAME. | |
f8eba3c6 | 330 | |
74ccd7f5 JB |
331 | This field may be NULL, in which case strcmp_iw will be used |
332 | to perform the matching. */ | |
1a119f36 | 333 | symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name); |
f8eba3c6 TT |
334 | |
335 | /* Find all symbols in the current program space matching NAME in | |
336 | DOMAIN, according to this language's rules. | |
337 | ||
4eeaa230 DE |
338 | The search is done in BLOCK only. |
339 | The caller is responsible for iterating up through superblocks | |
340 | if desired. | |
f8eba3c6 TT |
341 | |
342 | For each one, call CALLBACK with the symbol and the DATA | |
343 | argument. If CALLBACK returns zero, the iteration ends at that | |
344 | point. | |
345 | ||
72e1143f TT |
346 | This field may not be NULL. If the language does not need any |
347 | special processing here, 'iterate_over_symbols' should be | |
348 | used as the definition. */ | |
f8eba3c6 TT |
349 | void (*la_iterate_over_symbols) (const struct block *block, |
350 | const char *name, | |
351 | domain_enum domain, | |
8e704927 | 352 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
353 | void *data); |
354 | ||
a53b64ea YQ |
355 | /* Various operations on varobj. */ |
356 | const struct lang_varobj_ops *la_varobj_ops; | |
357 | ||
1777feb0 MS |
358 | /* Add fields above this point, so the magic number is always last. */ |
359 | /* Magic number for compat checking. */ | |
c5aa993b JM |
360 | |
361 | long la_magic; | |
362 | ||
363 | }; | |
c906108c SS |
364 | |
365 | #define LANG_MAGIC 910823L | |
366 | ||
367 | /* Pointer to the language_defn for our current language. This pointer | |
368 | always points to *some* valid struct; it can be used without checking | |
369 | it for validity. | |
370 | ||
371 | The current language affects expression parsing and evaluation | |
372 | (FIXME: it might be cleaner to make the evaluation-related stuff | |
373 | separate exp_opcodes for each different set of semantics. We | |
374 | should at least think this through more clearly with respect to | |
375 | what happens if the language is changed between parsing and | |
376 | evaluation) and printing of things like types and arrays. It does | |
377 | *not* affect symbol-reading-- each source file in a symbol-file has | |
378 | its own language and we should keep track of that regardless of the | |
379 | language when symbols are read. If we want some manual setting for | |
380 | the language of symbol files (e.g. detecting when ".c" files are | |
7e73cedf | 381 | C++), it should be a separate setting from the current_language. */ |
c906108c SS |
382 | |
383 | extern const struct language_defn *current_language; | |
384 | ||
385 | /* Pointer to the language_defn expected by the user, e.g. the language | |
386 | of main(), or the language we last mentioned in a message, or C. */ | |
387 | ||
388 | extern const struct language_defn *expected_language; | |
389 | ||
390 | /* language_mode == | |
391 | language_mode_auto: current_language automatically set upon selection | |
c5aa993b | 392 | of scope (e.g. stack frame) |
c906108c SS |
393 | language_mode_manual: current_language set only by user. */ |
394 | ||
395 | extern enum language_mode | |
c5aa993b JM |
396 | { |
397 | language_mode_auto, language_mode_manual | |
398 | } | |
399 | language_mode; | |
b62f3443 | 400 | |
fbb06eb1 UW |
401 | struct type *language_bool_type (const struct language_defn *l, |
402 | struct gdbarch *gdbarch); | |
403 | ||
b62f3443 JB |
404 | struct type *language_string_char_type (const struct language_defn *l, |
405 | struct gdbarch *gdbarch); | |
406 | ||
407 | struct type *language_lookup_primitive_type_by_name (const struct language_defn *l, | |
408 | struct gdbarch *gdbarch, | |
409 | const char *name); | |
410 | ||
c906108c SS |
411 | \f |
412 | /* These macros define the behaviour of the expression | |
413 | evaluator. */ | |
414 | ||
1777feb0 | 415 | /* Should we range check values against the domain of their type? */ |
c906108c SS |
416 | #define RANGE_CHECK (range_check != range_check_off) |
417 | ||
1777feb0 MS |
418 | /* "cast" really means conversion. */ |
419 | /* FIXME -- should be a setting in language_defn. */ | |
cc73bb8c TT |
420 | #define CAST_IS_CONVERSION(LANG) ((LANG)->la_language == language_c || \ |
421 | (LANG)->la_language == language_cplus || \ | |
422 | (LANG)->la_language == language_objc) | |
c906108c | 423 | |
a14ed312 | 424 | extern void language_info (int); |
c906108c | 425 | |
a14ed312 | 426 | extern enum language set_language (enum language); |
c906108c | 427 | \f |
c5aa993b | 428 | |
c906108c SS |
429 | /* This page contains functions that return things that are |
430 | specific to languages. Each of these functions is based on | |
431 | the current setting of working_lang, which the user sets | |
1777feb0 | 432 | with the "set language" command. */ |
c906108c | 433 | |
79d43c61 TT |
434 | #define LA_PRINT_TYPE(type,varstring,stream,show,level,flags) \ |
435 | (current_language->la_print_type(type,varstring,stream,show,level,flags)) | |
c906108c | 436 | |
5c6ce71d TT |
437 | #define LA_PRINT_TYPEDEF(type,new_symbol,stream) \ |
438 | (current_language->la_print_typedef(type,new_symbol,stream)) | |
439 | ||
0e03807e | 440 | #define LA_VAL_PRINT(type,valaddr,offset,addr,stream,val,recurse,options) \ |
79a45b7d | 441 | (current_language->la_val_print(type,valaddr,offset,addr,stream, \ |
0e03807e | 442 | val,recurse,options)) |
79a45b7d TT |
443 | #define LA_VALUE_PRINT(val,stream,options) \ |
444 | (current_language->la_value_print(val,stream,options)) | |
c906108c | 445 | |
6c7a06a3 TT |
446 | #define LA_PRINT_CHAR(ch, type, stream) \ |
447 | (current_language->la_printchar(ch, type, stream)) | |
3e43a32a | 448 | #define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \ |
6c7a06a3 | 449 | (current_language->la_printstr(stream, elttype, string, length, \ |
be759fcf | 450 | encoding, force_ellipses,options)) |
6c7a06a3 TT |
451 | #define LA_EMIT_CHAR(ch, type, stream, quoter) \ |
452 | (current_language->la_emitchar(ch, type, stream, quoter)) | |
96c07c5b TT |
453 | #define LA_GET_STRING(value, buffer, length, chartype, encoding) \ |
454 | (current_language->la_get_string(value, buffer, length, chartype, encoding)) | |
c906108c | 455 | |
577ce03a | 456 | #define LA_PRINT_ARRAY_INDEX(index_value, stream, options) \ |
79a45b7d | 457 | (current_language->la_print_array_index(index_value, stream, options)) |
e79af960 | 458 | |
f8eba3c6 TT |
459 | #define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK, DATA) \ |
460 | (current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK, \ | |
461 | DATA)) | |
462 | ||
c906108c SS |
463 | /* Test a character to decide whether it can be printed in literal form |
464 | or needs to be printed in another representation. For example, | |
465 | in C the literal form of the character with octal value 141 is 'a' | |
466 | and the "other representation" is '\141'. The "other representation" | |
1777feb0 | 467 | is program language dependent. */ |
c906108c SS |
468 | |
469 | #define PRINT_LITERAL_FORM(c) \ | |
470 | ((c) >= 0x20 \ | |
471 | && ((c) < 0x7F || (c) >= 0xA0) \ | |
472 | && (!sevenbit_strings || (c) < 0x80)) | |
473 | ||
c906108c SS |
474 | /* Type predicates */ |
475 | ||
a14ed312 | 476 | extern int pointer_type (struct type *); |
c906108c | 477 | |
1777feb0 MS |
478 | /* Checks Binary and Unary operations for semantic type correctness. */ |
479 | /* FIXME: Does not appear to be used. */ | |
c906108c SS |
480 | #define unop_type_check(v,o) binop_type_check((v),NULL,(o)) |
481 | ||
a14ed312 | 482 | extern void binop_type_check (struct value *, struct value *, int); |
c906108c SS |
483 | |
484 | /* Error messages */ | |
485 | ||
a0b31db1 | 486 | extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
c906108c SS |
487 | |
488 | /* Data: Does this value represent "truth" to the current language? */ | |
489 | ||
a14ed312 | 490 | extern int value_true (struct value *); |
c906108c | 491 | |
c906108c SS |
492 | /* Misc: The string representing a particular enum language. */ |
493 | ||
a14ed312 | 494 | extern enum language language_enum (char *str); |
c906108c | 495 | |
a14ed312 | 496 | extern const struct language_defn *language_def (enum language); |
7a292a7a | 497 | |
27cd387b | 498 | extern const char *language_str (enum language); |
c906108c SS |
499 | |
500 | /* Add a language to the set known by GDB (at initialization time). */ | |
501 | ||
a14ed312 | 502 | extern void add_language (const struct language_defn *); |
c906108c | 503 | |
a14ed312 | 504 | extern enum language get_frame_language (void); /* In stack.c */ |
c906108c | 505 | |
1777feb0 | 506 | /* Check for a language-specific trampoline. */ |
f636b87d | 507 | |
52f729a7 | 508 | extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 509 | |
9a3d7dfd AF |
510 | /* Return demangled language symbol, or NULL. */ |
511 | extern char *language_demangle (const struct language_defn *current_language, | |
512 | const char *mangled, int options); | |
513 | ||
31c27f77 JJ |
514 | /* Return class name from physname, or NULL. */ |
515 | extern char *language_class_name_from_physname (const struct language_defn *, | |
516 | const char *physname); | |
517 | ||
9f0a5303 JB |
518 | /* Splitting strings into words. */ |
519 | extern char *default_word_break_characters (void); | |
520 | ||
e79af960 JB |
521 | /* Print the index of an array element using the C99 syntax. */ |
522 | extern void default_print_array_index (struct value *index_value, | |
523 | struct ui_file *stream, | |
79a45b7d | 524 | const struct value_print_options *options); |
e79af960 | 525 | |
41f1b697 DJ |
526 | /* Return non-zero if TYPE should be passed (and returned) by |
527 | reference at the language level. */ | |
528 | int language_pass_by_reference (struct type *type); | |
529 | ||
530 | /* Return zero; by default, types are passed by value at the language | |
531 | level. The target ABI may pass or return some structs by reference | |
532 | independent of this. */ | |
533 | int default_pass_by_reference (struct type *type); | |
534 | ||
5c6ce71d TT |
535 | /* The default implementation of la_print_typedef. */ |
536 | void default_print_typedef (struct type *type, struct symbol *new_symbol, | |
537 | struct ui_file *stream); | |
538 | ||
ae6a3a4c | 539 | void default_get_string (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 540 | struct type **char_type, const char **charset); |
ae6a3a4c TJB |
541 | |
542 | void c_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 543 | struct type **char_type, const char **charset); |
ae6a3a4c | 544 | |
c5aa993b | 545 | #endif /* defined (LANGUAGE_H) */ |