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c906108c | 1 | /* Source-language-related definitions for GDB. |
1bac305b | 2 | |
28e7fd62 | 3 | Copyright (C) 1991-2013 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; |
62dfaa9c | 37 | |
1777feb0 | 38 | #define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */ |
c906108c SS |
39 | |
40 | /* range_mode == | |
41 | range_mode_auto: range_check set automatically to default of language. | |
42 | range_mode_manual: range_check set manually by user. */ | |
43 | ||
c5aa993b JM |
44 | extern enum range_mode |
45 | { | |
46 | range_mode_auto, range_mode_manual | |
47 | } | |
48 | range_mode; | |
c906108c SS |
49 | |
50 | /* range_check == | |
51 | range_check_on: Ranges are checked in GDB expressions, producing errors. | |
52 | range_check_warn: Ranges are checked, producing warnings. | |
53 | range_check_off: Ranges are not checked in GDB expressions. */ | |
54 | ||
55 | extern enum range_check | |
c5aa993b JM |
56 | { |
57 | range_check_off, range_check_warn, range_check_on | |
58 | } | |
59 | range_check; | |
c906108c | 60 | |
63872f9d | 61 | /* case_mode == |
1777feb0 | 62 | case_mode_auto: case_sensitivity set upon selection of scope. |
63872f9d JG |
63 | case_mode_manual: case_sensitivity set only by user. */ |
64 | ||
65 | extern enum case_mode | |
66 | { | |
67 | case_mode_auto, case_mode_manual | |
68 | } | |
69 | case_mode; | |
70 | ||
7ca2d3a3 | 71 | /* array_ordering == |
1777feb0 MS |
72 | array_row_major: Arrays are in row major order. |
73 | array_column_major: Arrays are in column major order. */ | |
7ca2d3a3 DL |
74 | |
75 | extern enum array_ordering | |
76 | { | |
77 | array_row_major, array_column_major | |
78 | } | |
79 | array_ordering; | |
80 | ||
81 | ||
63872f9d | 82 | /* case_sensitivity == |
1777feb0 MS |
83 | case_sensitive_on: Case sensitivity in name matching is used. |
84 | case_sensitive_off: Case sensitivity in name matching is not used. */ | |
63872f9d JG |
85 | |
86 | extern enum case_sensitivity | |
87 | { | |
88 | case_sensitive_on, case_sensitive_off | |
89 | } | |
90 | case_sensitivity; | |
9a044a89 TT |
91 | |
92 | ||
93 | /* macro_expansion == | |
1777feb0 MS |
94 | macro_expansion_no: No macro expansion is available. |
95 | macro_expansion_c: C-like macro expansion is available. */ | |
9a044a89 TT |
96 | |
97 | enum macro_expansion | |
98 | { | |
99 | macro_expansion_no, macro_expansion_c | |
100 | }; | |
101 | ||
c906108c | 102 | \f |
f290d38e AC |
103 | /* Per architecture (OS/ABI) language information. */ |
104 | ||
105 | struct language_arch_info | |
106 | { | |
5a44ea29 | 107 | /* Its primitive types. This is a vector ended by a NULL pointer. |
f290d38e AC |
108 | These types can be specified by name in parsing types in |
109 | expressions, regardless of whether the program being debugged | |
110 | actually defines such a type. */ | |
5a44ea29 | 111 | struct type **primitive_type_vector; |
1777feb0 | 112 | /* Type of elements of strings. */ |
f290d38e | 113 | struct type *string_char_type; |
fbb06eb1 UW |
114 | |
115 | /* Symbol name of type to use as boolean type, if defined. */ | |
116 | const char *bool_type_symbol; | |
117 | /* Otherwise, this is the default boolean builtin type. */ | |
118 | struct type *bool_type_default; | |
f290d38e AC |
119 | }; |
120 | ||
74ccd7f5 JB |
121 | /* A pointer to a function expected to return nonzero if |
122 | SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME. | |
123 | ||
124 | SYMBOL_SEARCH_NAME should be a symbol's "search" name. | |
125 | LOOKUP_NAME should be the name of an entity after it has been | |
126 | transformed for lookup. */ | |
127 | ||
1a119f36 | 128 | typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name, |
74ccd7f5 JB |
129 | const char *lookup_name); |
130 | ||
c906108c SS |
131 | /* Structure tying together assorted information about a language. */ |
132 | ||
133 | struct language_defn | |
c5aa993b | 134 | { |
1777feb0 | 135 | /* Name of the language. */ |
c906108c | 136 | |
27cd387b | 137 | const char *la_name; |
c906108c | 138 | |
6abde28f YQ |
139 | /* Natural or official name of the language. */ |
140 | ||
141 | const char *la_natural_name; | |
142 | ||
1777feb0 | 143 | /* its symtab language-enum (defs.h). */ |
c906108c | 144 | |
c5aa993b | 145 | enum language la_language; |
c906108c | 146 | |
1777feb0 | 147 | /* Default range checking. */ |
c906108c | 148 | |
c5aa993b | 149 | enum range_check la_range_check; |
c906108c | 150 | |
1777feb0 | 151 | /* Default case sensitivity. */ |
63872f9d JG |
152 | enum case_sensitivity la_case_sensitivity; |
153 | ||
1777feb0 | 154 | /* Multi-dimensional array ordering. */ |
7ca2d3a3 DL |
155 | enum array_ordering la_array_ordering; |
156 | ||
9a044a89 TT |
157 | /* Style of macro expansion, if any, supported by this language. */ |
158 | enum macro_expansion la_macro_expansion; | |
159 | ||
5f9769d1 | 160 | /* Definitions related to expression printing, prefixifying, and |
1777feb0 | 161 | dumping. */ |
5f9769d1 PH |
162 | |
163 | const struct exp_descriptor *la_exp_desc; | |
164 | ||
1777feb0 | 165 | /* Parser function. */ |
c906108c | 166 | |
507f3c78 | 167 | int (*la_parser) (void); |
c906108c | 168 | |
1777feb0 | 169 | /* Parser error function. */ |
c906108c | 170 | |
507f3c78 | 171 | void (*la_error) (char *); |
c906108c | 172 | |
e85c3284 PH |
173 | /* Given an expression *EXPP created by prefixifying the result of |
174 | la_parser, perform any remaining processing necessary to complete | |
175 | its translation. *EXPP may change; la_post_parser is responsible | |
176 | for releasing its previous contents, if necessary. If | |
177 | VOID_CONTEXT_P, then no value is expected from the expression. */ | |
178 | ||
179 | void (*la_post_parser) (struct expression ** expp, int void_context_p); | |
180 | ||
3e43a32a MS |
181 | void (*la_printchar) (int ch, struct type *chtype, |
182 | struct ui_file * stream); | |
c906108c | 183 | |
6c7a06a3 TT |
184 | void (*la_printstr) (struct ui_file * stream, struct type *elttype, |
185 | const gdb_byte *string, unsigned int length, | |
be759fcf | 186 | const char *encoding, int force_ellipses, |
79a45b7d | 187 | const struct value_print_options *); |
c906108c | 188 | |
6c7a06a3 TT |
189 | void (*la_emitchar) (int ch, struct type *chtype, |
190 | struct ui_file * stream, int quoter); | |
c906108c | 191 | |
1777feb0 | 192 | /* Print a type using syntax appropriate for this language. */ |
c906108c | 193 | |
25b524e8 | 194 | void (*la_print_type) (struct type *, const char *, struct ui_file *, int, |
79d43c61 | 195 | int, const struct type_print_options *); |
c906108c | 196 | |
5c6ce71d TT |
197 | /* Print a typedef using syntax appropriate for this language. |
198 | TYPE is the underlying type. NEW_SYMBOL is the symbol naming | |
199 | the type. STREAM is the output stream on which to print. */ | |
200 | ||
201 | void (*la_print_typedef) (struct type *type, struct symbol *new_symbol, | |
202 | struct ui_file *stream); | |
203 | ||
edf3d5f3 TT |
204 | /* Print a value using syntax appropriate for this language. |
205 | ||
206 | TYPE is the type of the sub-object to be printed. | |
c906108c | 207 | |
edf3d5f3 TT |
208 | CONTENTS holds the bits of the value. This holds the entire |
209 | enclosing object. | |
210 | ||
211 | EMBEDDED_OFFSET is the offset into the outermost object of the | |
212 | sub-object represented by TYPE. This is the object which this | |
213 | call should print. Note that the enclosing type is not | |
214 | available. | |
215 | ||
216 | ADDRESS is the address in the inferior of the enclosing object. | |
217 | ||
218 | STREAM is the stream on which the value is to be printed. | |
219 | ||
220 | RECURSE is the recursion depth. It is zero-based. | |
221 | ||
222 | OPTIONS are the formatting options to be used when | |
223 | printing. */ | |
224 | ||
d3eab38a TT |
225 | void (*la_val_print) (struct type *type, |
226 | const gdb_byte *contents, | |
227 | int embedded_offset, CORE_ADDR address, | |
228 | struct ui_file *stream, int recurse, | |
229 | const struct value *val, | |
230 | const struct value_print_options *options); | |
c906108c | 231 | |
1777feb0 | 232 | /* Print a top-level value using syntax appropriate for this language. */ |
c906108c | 233 | |
8e069a98 TT |
234 | void (*la_value_print) (struct value *, struct ui_file *, |
235 | const struct value_print_options *); | |
c906108c | 236 | |
a5ee536b JB |
237 | /* Given a symbol VAR, and a stack frame id FRAME, read the value |
238 | of the variable an return (pointer to a) struct value containing | |
239 | the value. | |
240 | ||
241 | Throw an error if the variable cannot be found. */ | |
242 | ||
243 | struct value *(*la_read_var_value) (struct symbol *var, | |
244 | struct frame_info *frame); | |
245 | ||
f636b87d AF |
246 | /* PC is possibly an unknown languages trampoline. |
247 | If that PC falls in a trampoline belonging to this language, | |
248 | return the address of the first pc in the real function, or 0 | |
249 | if it isn't a language tramp for this language. */ | |
52f729a7 | 250 | CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR); |
f636b87d | 251 | |
5f9a71c3 DC |
252 | /* Now come some hooks for lookup_symbol. */ |
253 | ||
2b2d9e11 VP |
254 | /* If this is non-NULL, specifies the name that of the implicit |
255 | local variable that refers to the current object instance. */ | |
5f9a71c3 | 256 | |
2b2d9e11 | 257 | char *la_name_of_this; |
5f9a71c3 DC |
258 | |
259 | /* This is a function that lookup_symbol will call when it gets to | |
260 | the part of symbol lookup where C looks up static and global | |
261 | variables. */ | |
262 | ||
263 | struct symbol *(*la_lookup_symbol_nonlocal) (const char *, | |
5f9a71c3 | 264 | const struct block *, |
21b556f4 | 265 | const domain_enum); |
5f9a71c3 | 266 | |
b368761e DC |
267 | /* Find the definition of the type with the given name. */ |
268 | struct type *(*la_lookup_transparent_type) (const char *); | |
269 | ||
9a3d7dfd AF |
270 | /* Return demangled language symbol, or NULL. */ |
271 | char *(*la_demangle) (const char *mangled, int options); | |
272 | ||
31c27f77 JJ |
273 | /* Return class name of a mangled method name or NULL. */ |
274 | char *(*la_class_name_from_physname) (const char *physname); | |
275 | ||
1777feb0 | 276 | /* Table for printing expressions. */ |
c906108c | 277 | |
c5aa993b | 278 | const struct op_print *la_op_print_tab; |
c906108c | 279 | |
c5aa993b | 280 | /* Zero if the language has first-class arrays. True if there are no |
1777feb0 | 281 | array values, and array objects decay to pointers, as in C. */ |
c906108c | 282 | |
c5aa993b | 283 | char c_style_arrays; |
c906108c | 284 | |
1777feb0 | 285 | /* Index to use for extracting the first element of a string. */ |
c5aa993b | 286 | char string_lower_bound; |
c906108c | 287 | |
6084f43a JB |
288 | /* The list of characters forming word boundaries. */ |
289 | char *(*la_word_break_characters) (void); | |
290 | ||
49c4e619 TT |
291 | /* Should return a vector of all symbols which are possible |
292 | completions for TEXT. WORD is the entire command on which the | |
2f68a895 TT |
293 | completion is being made. If CODE is TYPE_CODE_UNDEF, then all |
294 | symbols should be examined; otherwise, only STRUCT_DOMAIN | |
295 | symbols whose type has a code of CODE should be matched. */ | |
6f937416 PA |
296 | VEC (char_ptr) *(*la_make_symbol_completion_list) (const char *text, |
297 | const char *word, | |
2f68a895 | 298 | enum type_code code); |
41d27058 | 299 | |
f290d38e AC |
300 | /* The per-architecture (OS/ABI) language information. */ |
301 | void (*la_language_arch_info) (struct gdbarch *, | |
302 | struct language_arch_info *); | |
303 | ||
e79af960 JB |
304 | /* Print the index of an element of an array. */ |
305 | void (*la_print_array_index) (struct value *index_value, | |
306 | struct ui_file *stream, | |
79a45b7d | 307 | const struct value_print_options *options); |
e79af960 | 308 | |
41f1b697 DJ |
309 | /* Return non-zero if TYPE should be passed (and returned) by |
310 | reference at the language level. */ | |
311 | int (*la_pass_by_reference) (struct type *type); | |
312 | ||
ae6a3a4c | 313 | /* Obtain a string from the inferior, storing it in a newly allocated |
fbb8f299 PM |
314 | buffer in BUFFER, which should be freed by the caller. If the |
315 | in- and out-parameter *LENGTH is specified at -1, the string is | |
316 | read until a null character of the appropriate width is found - | |
317 | otherwise the string is read to the length of characters specified. | |
318 | On completion, *LENGTH will hold the size of the string in characters. | |
319 | If a *LENGTH of -1 was specified it will count only actual | |
320 | characters, excluding any eventual terminating null character. | |
321 | Otherwise *LENGTH will include all characters - including any nulls. | |
322 | CHARSET will hold the encoding used in the string. */ | |
ae6a3a4c | 323 | void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 324 | struct type **chartype, const char **charset); |
ae6a3a4c | 325 | |
74ccd7f5 JB |
326 | /* Return a pointer to the function that should be used to match |
327 | a symbol name against LOOKUP_NAME. This is mostly for languages | |
328 | such as Ada where the matching algorithm depends on LOOKUP_NAME. | |
f8eba3c6 | 329 | |
74ccd7f5 JB |
330 | This field may be NULL, in which case strcmp_iw will be used |
331 | to perform the matching. */ | |
1a119f36 | 332 | symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name); |
f8eba3c6 TT |
333 | |
334 | /* Find all symbols in the current program space matching NAME in | |
335 | DOMAIN, according to this language's rules. | |
336 | ||
4eeaa230 DE |
337 | The search is done in BLOCK only. |
338 | The caller is responsible for iterating up through superblocks | |
339 | if desired. | |
f8eba3c6 TT |
340 | |
341 | For each one, call CALLBACK with the symbol and the DATA | |
342 | argument. If CALLBACK returns zero, the iteration ends at that | |
343 | point. | |
344 | ||
72e1143f TT |
345 | This field may not be NULL. If the language does not need any |
346 | special processing here, 'iterate_over_symbols' should be | |
347 | used as the definition. */ | |
f8eba3c6 TT |
348 | void (*la_iterate_over_symbols) (const struct block *block, |
349 | const char *name, | |
350 | domain_enum domain, | |
8e704927 | 351 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
352 | void *data); |
353 | ||
a53b64ea YQ |
354 | /* Various operations on varobj. */ |
355 | const struct lang_varobj_ops *la_varobj_ops; | |
356 | ||
1777feb0 MS |
357 | /* Add fields above this point, so the magic number is always last. */ |
358 | /* Magic number for compat checking. */ | |
c5aa993b JM |
359 | |
360 | long la_magic; | |
361 | ||
362 | }; | |
c906108c SS |
363 | |
364 | #define LANG_MAGIC 910823L | |
365 | ||
366 | /* Pointer to the language_defn for our current language. This pointer | |
367 | always points to *some* valid struct; it can be used without checking | |
368 | it for validity. | |
369 | ||
370 | The current language affects expression parsing and evaluation | |
371 | (FIXME: it might be cleaner to make the evaluation-related stuff | |
372 | separate exp_opcodes for each different set of semantics. We | |
373 | should at least think this through more clearly with respect to | |
374 | what happens if the language is changed between parsing and | |
375 | evaluation) and printing of things like types and arrays. It does | |
376 | *not* affect symbol-reading-- each source file in a symbol-file has | |
377 | its own language and we should keep track of that regardless of the | |
378 | language when symbols are read. If we want some manual setting for | |
379 | the language of symbol files (e.g. detecting when ".c" files are | |
7e73cedf | 380 | C++), it should be a separate setting from the current_language. */ |
c906108c SS |
381 | |
382 | extern const struct language_defn *current_language; | |
383 | ||
384 | /* Pointer to the language_defn expected by the user, e.g. the language | |
385 | of main(), or the language we last mentioned in a message, or C. */ | |
386 | ||
387 | extern const struct language_defn *expected_language; | |
388 | ||
389 | /* language_mode == | |
390 | language_mode_auto: current_language automatically set upon selection | |
c5aa993b | 391 | of scope (e.g. stack frame) |
c906108c SS |
392 | language_mode_manual: current_language set only by user. */ |
393 | ||
394 | extern enum language_mode | |
c5aa993b JM |
395 | { |
396 | language_mode_auto, language_mode_manual | |
397 | } | |
398 | language_mode; | |
b62f3443 | 399 | |
fbb06eb1 UW |
400 | struct type *language_bool_type (const struct language_defn *l, |
401 | struct gdbarch *gdbarch); | |
402 | ||
b62f3443 JB |
403 | struct type *language_string_char_type (const struct language_defn *l, |
404 | struct gdbarch *gdbarch); | |
405 | ||
406 | struct type *language_lookup_primitive_type_by_name (const struct language_defn *l, | |
407 | struct gdbarch *gdbarch, | |
408 | const char *name); | |
409 | ||
c906108c SS |
410 | \f |
411 | /* These macros define the behaviour of the expression | |
412 | evaluator. */ | |
413 | ||
1777feb0 | 414 | /* Should we range check values against the domain of their type? */ |
c906108c SS |
415 | #define RANGE_CHECK (range_check != range_check_off) |
416 | ||
1777feb0 MS |
417 | /* "cast" really means conversion. */ |
418 | /* FIXME -- should be a setting in language_defn. */ | |
cc73bb8c TT |
419 | #define CAST_IS_CONVERSION(LANG) ((LANG)->la_language == language_c || \ |
420 | (LANG)->la_language == language_cplus || \ | |
421 | (LANG)->la_language == language_objc) | |
c906108c | 422 | |
a14ed312 | 423 | extern void language_info (int); |
c906108c | 424 | |
a14ed312 | 425 | extern enum language set_language (enum language); |
c906108c | 426 | \f |
c5aa993b | 427 | |
c906108c SS |
428 | /* This page contains functions that return things that are |
429 | specific to languages. Each of these functions is based on | |
430 | the current setting of working_lang, which the user sets | |
1777feb0 | 431 | with the "set language" command. */ |
c906108c | 432 | |
79d43c61 TT |
433 | #define LA_PRINT_TYPE(type,varstring,stream,show,level,flags) \ |
434 | (current_language->la_print_type(type,varstring,stream,show,level,flags)) | |
c906108c | 435 | |
5c6ce71d TT |
436 | #define LA_PRINT_TYPEDEF(type,new_symbol,stream) \ |
437 | (current_language->la_print_typedef(type,new_symbol,stream)) | |
438 | ||
0e03807e | 439 | #define LA_VAL_PRINT(type,valaddr,offset,addr,stream,val,recurse,options) \ |
79a45b7d | 440 | (current_language->la_val_print(type,valaddr,offset,addr,stream, \ |
0e03807e | 441 | val,recurse,options)) |
79a45b7d TT |
442 | #define LA_VALUE_PRINT(val,stream,options) \ |
443 | (current_language->la_value_print(val,stream,options)) | |
c906108c | 444 | |
6c7a06a3 TT |
445 | #define LA_PRINT_CHAR(ch, type, stream) \ |
446 | (current_language->la_printchar(ch, type, stream)) | |
3e43a32a | 447 | #define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \ |
6c7a06a3 | 448 | (current_language->la_printstr(stream, elttype, string, length, \ |
be759fcf | 449 | encoding, force_ellipses,options)) |
6c7a06a3 TT |
450 | #define LA_EMIT_CHAR(ch, type, stream, quoter) \ |
451 | (current_language->la_emitchar(ch, type, stream, quoter)) | |
96c07c5b TT |
452 | #define LA_GET_STRING(value, buffer, length, chartype, encoding) \ |
453 | (current_language->la_get_string(value, buffer, length, chartype, encoding)) | |
c906108c | 454 | |
577ce03a | 455 | #define LA_PRINT_ARRAY_INDEX(index_value, stream, options) \ |
79a45b7d | 456 | (current_language->la_print_array_index(index_value, stream, options)) |
e79af960 | 457 | |
f8eba3c6 TT |
458 | #define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK, DATA) \ |
459 | (current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK, \ | |
460 | DATA)) | |
461 | ||
c906108c SS |
462 | /* Test a character to decide whether it can be printed in literal form |
463 | or needs to be printed in another representation. For example, | |
464 | in C the literal form of the character with octal value 141 is 'a' | |
465 | and the "other representation" is '\141'. The "other representation" | |
1777feb0 | 466 | is program language dependent. */ |
c906108c SS |
467 | |
468 | #define PRINT_LITERAL_FORM(c) \ | |
469 | ((c) >= 0x20 \ | |
470 | && ((c) < 0x7F || (c) >= 0xA0) \ | |
471 | && (!sevenbit_strings || (c) < 0x80)) | |
472 | ||
c906108c SS |
473 | /* Type predicates */ |
474 | ||
a14ed312 | 475 | extern int pointer_type (struct type *); |
c906108c | 476 | |
1777feb0 MS |
477 | /* Checks Binary and Unary operations for semantic type correctness. */ |
478 | /* FIXME: Does not appear to be used. */ | |
c906108c SS |
479 | #define unop_type_check(v,o) binop_type_check((v),NULL,(o)) |
480 | ||
a14ed312 | 481 | extern void binop_type_check (struct value *, struct value *, int); |
c906108c SS |
482 | |
483 | /* Error messages */ | |
484 | ||
a0b31db1 | 485 | extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
c906108c SS |
486 | |
487 | /* Data: Does this value represent "truth" to the current language? */ | |
488 | ||
a14ed312 | 489 | extern int value_true (struct value *); |
c906108c | 490 | |
c906108c SS |
491 | /* Misc: The string representing a particular enum language. */ |
492 | ||
a14ed312 | 493 | extern enum language language_enum (char *str); |
c906108c | 494 | |
a14ed312 | 495 | extern const struct language_defn *language_def (enum language); |
7a292a7a | 496 | |
27cd387b | 497 | extern const char *language_str (enum language); |
c906108c SS |
498 | |
499 | /* Add a language to the set known by GDB (at initialization time). */ | |
500 | ||
a14ed312 | 501 | extern void add_language (const struct language_defn *); |
c906108c | 502 | |
a14ed312 | 503 | extern enum language get_frame_language (void); /* In stack.c */ |
c906108c | 504 | |
1777feb0 | 505 | /* Check for a language-specific trampoline. */ |
f636b87d | 506 | |
52f729a7 | 507 | extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 508 | |
9a3d7dfd AF |
509 | /* Return demangled language symbol, or NULL. */ |
510 | extern char *language_demangle (const struct language_defn *current_language, | |
511 | const char *mangled, int options); | |
512 | ||
31c27f77 JJ |
513 | /* Return class name from physname, or NULL. */ |
514 | extern char *language_class_name_from_physname (const struct language_defn *, | |
515 | const char *physname); | |
516 | ||
9f0a5303 JB |
517 | /* Splitting strings into words. */ |
518 | extern char *default_word_break_characters (void); | |
519 | ||
e79af960 JB |
520 | /* Print the index of an array element using the C99 syntax. */ |
521 | extern void default_print_array_index (struct value *index_value, | |
522 | struct ui_file *stream, | |
79a45b7d | 523 | const struct value_print_options *options); |
e79af960 | 524 | |
41f1b697 DJ |
525 | /* Return non-zero if TYPE should be passed (and returned) by |
526 | reference at the language level. */ | |
527 | int language_pass_by_reference (struct type *type); | |
528 | ||
529 | /* Return zero; by default, types are passed by value at the language | |
530 | level. The target ABI may pass or return some structs by reference | |
531 | independent of this. */ | |
532 | int default_pass_by_reference (struct type *type); | |
533 | ||
5c6ce71d TT |
534 | /* The default implementation of la_print_typedef. */ |
535 | void default_print_typedef (struct type *type, struct symbol *new_symbol, | |
536 | struct ui_file *stream); | |
537 | ||
ae6a3a4c | 538 | void default_get_string (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 539 | struct type **char_type, const char **charset); |
ae6a3a4c TJB |
540 | |
541 | void c_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 542 | struct type **char_type, const char **charset); |
ae6a3a4c | 543 | |
c5aa993b | 544 | #endif /* defined (LANGUAGE_H) */ |