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