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c906108c | 1 | /* Source-language-related definitions for GDB. |
1bac305b | 2 | |
0b302171 JB |
3 | Copyright (C) 1991-1995, 1998-2000, 2003-2004, 2007-2012 Free |
4 | Software Foundation, Inc. | |
1bac305b | 5 | |
c906108c SS |
6 | Contributed by the Department of Computer Science at the State University |
7 | of New York at Buffalo. | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #if !defined (LANGUAGE_H) | |
25 | #define LANGUAGE_H 1 | |
26 | ||
1777feb0 | 27 | /* Forward decls for prototypes. */ |
c906108c SS |
28 | struct value; |
29 | struct objfile; | |
52f729a7 | 30 | struct frame_info; |
c906108c | 31 | struct expression; |
da3331ec | 32 | struct ui_file; |
79a45b7d | 33 | struct value_print_options; |
62dfaa9c | 34 | |
1777feb0 | 35 | #define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */ |
c906108c SS |
36 | |
37 | /* range_mode == | |
38 | range_mode_auto: range_check set automatically to default of language. | |
39 | range_mode_manual: range_check set manually by user. */ | |
40 | ||
c5aa993b JM |
41 | extern enum range_mode |
42 | { | |
43 | range_mode_auto, range_mode_manual | |
44 | } | |
45 | range_mode; | |
c906108c SS |
46 | |
47 | /* range_check == | |
48 | range_check_on: Ranges are checked in GDB expressions, producing errors. | |
49 | range_check_warn: Ranges are checked, producing warnings. | |
50 | range_check_off: Ranges are not checked in GDB expressions. */ | |
51 | ||
52 | extern enum range_check | |
c5aa993b JM |
53 | { |
54 | range_check_off, range_check_warn, range_check_on | |
55 | } | |
56 | range_check; | |
c906108c SS |
57 | |
58 | /* type_mode == | |
1777feb0 MS |
59 | type_mode_auto: type_check set automatically to default of language. |
60 | type_mode_manual: type_check set manually by user. */ | |
c906108c | 61 | |
c5aa993b JM |
62 | extern enum type_mode |
63 | { | |
64 | type_mode_auto, type_mode_manual | |
65 | } | |
66 | type_mode; | |
c906108c SS |
67 | |
68 | /* type_check == | |
69 | type_check_on: Types are checked in GDB expressions, producing errors. | |
70 | type_check_warn: Types are checked, producing warnings. | |
71 | type_check_off: Types are not checked in GDB expressions. */ | |
72 | ||
73 | extern enum type_check | |
c5aa993b JM |
74 | { |
75 | type_check_off, type_check_warn, type_check_on | |
76 | } | |
77 | type_check; | |
63872f9d JG |
78 | |
79 | /* case_mode == | |
1777feb0 | 80 | case_mode_auto: case_sensitivity set upon selection of scope. |
63872f9d JG |
81 | case_mode_manual: case_sensitivity set only by user. */ |
82 | ||
83 | extern enum case_mode | |
84 | { | |
85 | case_mode_auto, case_mode_manual | |
86 | } | |
87 | case_mode; | |
88 | ||
7ca2d3a3 | 89 | /* array_ordering == |
1777feb0 MS |
90 | array_row_major: Arrays are in row major order. |
91 | array_column_major: Arrays are in column major order. */ | |
7ca2d3a3 DL |
92 | |
93 | extern enum array_ordering | |
94 | { | |
95 | array_row_major, array_column_major | |
96 | } | |
97 | array_ordering; | |
98 | ||
99 | ||
63872f9d | 100 | /* case_sensitivity == |
1777feb0 MS |
101 | case_sensitive_on: Case sensitivity in name matching is used. |
102 | case_sensitive_off: Case sensitivity in name matching is not used. */ | |
63872f9d JG |
103 | |
104 | extern enum case_sensitivity | |
105 | { | |
106 | case_sensitive_on, case_sensitive_off | |
107 | } | |
108 | case_sensitivity; | |
9a044a89 TT |
109 | |
110 | ||
111 | /* macro_expansion == | |
1777feb0 MS |
112 | macro_expansion_no: No macro expansion is available. |
113 | macro_expansion_c: C-like macro expansion is available. */ | |
9a044a89 TT |
114 | |
115 | enum macro_expansion | |
116 | { | |
117 | macro_expansion_no, macro_expansion_c | |
118 | }; | |
119 | ||
c906108c | 120 | \f |
f290d38e AC |
121 | /* Per architecture (OS/ABI) language information. */ |
122 | ||
123 | struct language_arch_info | |
124 | { | |
5a44ea29 | 125 | /* Its primitive types. This is a vector ended by a NULL pointer. |
f290d38e AC |
126 | These types can be specified by name in parsing types in |
127 | expressions, regardless of whether the program being debugged | |
128 | actually defines such a type. */ | |
5a44ea29 | 129 | struct type **primitive_type_vector; |
1777feb0 | 130 | /* Type of elements of strings. */ |
f290d38e | 131 | struct type *string_char_type; |
fbb06eb1 UW |
132 | |
133 | /* Symbol name of type to use as boolean type, if defined. */ | |
134 | const char *bool_type_symbol; | |
135 | /* Otherwise, this is the default boolean builtin type. */ | |
136 | struct type *bool_type_default; | |
f290d38e AC |
137 | }; |
138 | ||
74ccd7f5 JB |
139 | /* A pointer to a function expected to return nonzero if |
140 | SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME. | |
141 | ||
142 | SYMBOL_SEARCH_NAME should be a symbol's "search" name. | |
143 | LOOKUP_NAME should be the name of an entity after it has been | |
144 | transformed for lookup. */ | |
145 | ||
1a119f36 | 146 | typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name, |
74ccd7f5 JB |
147 | const char *lookup_name); |
148 | ||
c906108c SS |
149 | /* Structure tying together assorted information about a language. */ |
150 | ||
151 | struct language_defn | |
c5aa993b | 152 | { |
1777feb0 | 153 | /* Name of the language. */ |
c906108c | 154 | |
c5aa993b | 155 | char *la_name; |
c906108c | 156 | |
1777feb0 | 157 | /* its symtab language-enum (defs.h). */ |
c906108c | 158 | |
c5aa993b | 159 | enum language la_language; |
c906108c | 160 | |
1777feb0 | 161 | /* Default range checking. */ |
c906108c | 162 | |
c5aa993b | 163 | enum range_check la_range_check; |
c906108c | 164 | |
1777feb0 | 165 | /* Default type checking. */ |
c906108c | 166 | |
c5aa993b | 167 | enum type_check la_type_check; |
c906108c | 168 | |
1777feb0 | 169 | /* Default case sensitivity. */ |
63872f9d JG |
170 | enum case_sensitivity la_case_sensitivity; |
171 | ||
1777feb0 | 172 | /* Multi-dimensional array ordering. */ |
7ca2d3a3 DL |
173 | enum array_ordering la_array_ordering; |
174 | ||
9a044a89 TT |
175 | /* Style of macro expansion, if any, supported by this language. */ |
176 | enum macro_expansion la_macro_expansion; | |
177 | ||
5f9769d1 | 178 | /* Definitions related to expression printing, prefixifying, and |
1777feb0 | 179 | dumping. */ |
5f9769d1 PH |
180 | |
181 | const struct exp_descriptor *la_exp_desc; | |
182 | ||
1777feb0 | 183 | /* Parser function. */ |
c906108c | 184 | |
507f3c78 | 185 | int (*la_parser) (void); |
c906108c | 186 | |
1777feb0 | 187 | /* Parser error function. */ |
c906108c | 188 | |
507f3c78 | 189 | void (*la_error) (char *); |
c906108c | 190 | |
e85c3284 PH |
191 | /* Given an expression *EXPP created by prefixifying the result of |
192 | la_parser, perform any remaining processing necessary to complete | |
193 | its translation. *EXPP may change; la_post_parser is responsible | |
194 | for releasing its previous contents, if necessary. If | |
195 | VOID_CONTEXT_P, then no value is expected from the expression. */ | |
196 | ||
197 | void (*la_post_parser) (struct expression ** expp, int void_context_p); | |
198 | ||
3e43a32a MS |
199 | void (*la_printchar) (int ch, struct type *chtype, |
200 | struct ui_file * stream); | |
c906108c | 201 | |
6c7a06a3 TT |
202 | void (*la_printstr) (struct ui_file * stream, struct type *elttype, |
203 | const gdb_byte *string, unsigned int length, | |
be759fcf | 204 | const char *encoding, int force_ellipses, |
79a45b7d | 205 | const struct value_print_options *); |
c906108c | 206 | |
6c7a06a3 TT |
207 | void (*la_emitchar) (int ch, struct type *chtype, |
208 | struct ui_file * stream, int quoter); | |
c906108c | 209 | |
1777feb0 | 210 | /* Print a type using syntax appropriate for this language. */ |
c906108c | 211 | |
25b524e8 | 212 | void (*la_print_type) (struct type *, const char *, struct ui_file *, int, |
d9fcf2fb | 213 | int); |
c906108c | 214 | |
5c6ce71d TT |
215 | /* Print a typedef using syntax appropriate for this language. |
216 | TYPE is the underlying type. NEW_SYMBOL is the symbol naming | |
217 | the type. STREAM is the output stream on which to print. */ | |
218 | ||
219 | void (*la_print_typedef) (struct type *type, struct symbol *new_symbol, | |
220 | struct ui_file *stream); | |
221 | ||
edf3d5f3 TT |
222 | /* Print a value using syntax appropriate for this language. |
223 | ||
224 | TYPE is the type of the sub-object to be printed. | |
c906108c | 225 | |
edf3d5f3 TT |
226 | CONTENTS holds the bits of the value. This holds the entire |
227 | enclosing object. | |
228 | ||
229 | EMBEDDED_OFFSET is the offset into the outermost object of the | |
230 | sub-object represented by TYPE. This is the object which this | |
231 | call should print. Note that the enclosing type is not | |
232 | available. | |
233 | ||
234 | ADDRESS is the address in the inferior of the enclosing object. | |
235 | ||
236 | STREAM is the stream on which the value is to be printed. | |
237 | ||
238 | RECURSE is the recursion depth. It is zero-based. | |
239 | ||
240 | OPTIONS are the formatting options to be used when | |
241 | printing. */ | |
242 | ||
243 | int (*la_val_print) (struct type *type, | |
244 | const gdb_byte *contents, | |
245 | int embedded_offset, CORE_ADDR address, | |
246 | struct ui_file *stream, int recurse, | |
0e03807e | 247 | const struct value *val, |
edf3d5f3 | 248 | const struct value_print_options *options); |
c906108c | 249 | |
1777feb0 | 250 | /* Print a top-level value using syntax appropriate for this language. */ |
c906108c | 251 | |
d9fcf2fb | 252 | int (*la_value_print) (struct value *, struct ui_file *, |
79a45b7d | 253 | const struct value_print_options *); |
c906108c | 254 | |
f636b87d AF |
255 | /* PC is possibly an unknown languages trampoline. |
256 | If that PC falls in a trampoline belonging to this language, | |
257 | return the address of the first pc in the real function, or 0 | |
258 | if it isn't a language tramp for this language. */ | |
52f729a7 | 259 | CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR); |
f636b87d | 260 | |
5f9a71c3 DC |
261 | /* Now come some hooks for lookup_symbol. */ |
262 | ||
2b2d9e11 VP |
263 | /* If this is non-NULL, specifies the name that of the implicit |
264 | local variable that refers to the current object instance. */ | |
5f9a71c3 | 265 | |
2b2d9e11 | 266 | char *la_name_of_this; |
5f9a71c3 DC |
267 | |
268 | /* This is a function that lookup_symbol will call when it gets to | |
269 | the part of symbol lookup where C looks up static and global | |
270 | variables. */ | |
271 | ||
272 | struct symbol *(*la_lookup_symbol_nonlocal) (const char *, | |
5f9a71c3 | 273 | const struct block *, |
21b556f4 | 274 | const domain_enum); |
5f9a71c3 | 275 | |
b368761e DC |
276 | /* Find the definition of the type with the given name. */ |
277 | struct type *(*la_lookup_transparent_type) (const char *); | |
278 | ||
9a3d7dfd AF |
279 | /* Return demangled language symbol, or NULL. */ |
280 | char *(*la_demangle) (const char *mangled, int options); | |
281 | ||
31c27f77 JJ |
282 | /* Return class name of a mangled method name or NULL. */ |
283 | char *(*la_class_name_from_physname) (const char *physname); | |
284 | ||
1777feb0 | 285 | /* Table for printing expressions. */ |
c906108c | 286 | |
c5aa993b | 287 | const struct op_print *la_op_print_tab; |
c906108c | 288 | |
c5aa993b | 289 | /* Zero if the language has first-class arrays. True if there are no |
1777feb0 | 290 | array values, and array objects decay to pointers, as in C. */ |
c906108c | 291 | |
c5aa993b | 292 | char c_style_arrays; |
c906108c | 293 | |
1777feb0 | 294 | /* Index to use for extracting the first element of a string. */ |
c5aa993b | 295 | char string_lower_bound; |
c906108c | 296 | |
6084f43a JB |
297 | /* The list of characters forming word boundaries. */ |
298 | char *(*la_word_break_characters) (void); | |
299 | ||
41d27058 JB |
300 | /* Should return a NULL terminated array of all symbols which |
301 | are possible completions for TEXT. WORD is the entire command | |
302 | on which the completion is being made. */ | |
303 | char **(*la_make_symbol_completion_list) (char *text, char *word); | |
304 | ||
f290d38e AC |
305 | /* The per-architecture (OS/ABI) language information. */ |
306 | void (*la_language_arch_info) (struct gdbarch *, | |
307 | struct language_arch_info *); | |
308 | ||
e79af960 JB |
309 | /* Print the index of an element of an array. */ |
310 | void (*la_print_array_index) (struct value *index_value, | |
311 | struct ui_file *stream, | |
79a45b7d | 312 | const struct value_print_options *options); |
e79af960 | 313 | |
41f1b697 DJ |
314 | /* Return non-zero if TYPE should be passed (and returned) by |
315 | reference at the language level. */ | |
316 | int (*la_pass_by_reference) (struct type *type); | |
317 | ||
ae6a3a4c | 318 | /* Obtain a string from the inferior, storing it in a newly allocated |
fbb8f299 PM |
319 | buffer in BUFFER, which should be freed by the caller. If the |
320 | in- and out-parameter *LENGTH is specified at -1, the string is | |
321 | read until a null character of the appropriate width is found - | |
322 | otherwise the string is read to the length of characters specified. | |
323 | On completion, *LENGTH will hold the size of the string in characters. | |
324 | If a *LENGTH of -1 was specified it will count only actual | |
325 | characters, excluding any eventual terminating null character. | |
326 | Otherwise *LENGTH will include all characters - including any nulls. | |
327 | CHARSET will hold the encoding used in the string. */ | |
ae6a3a4c | 328 | void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 329 | struct type **chartype, const char **charset); |
ae6a3a4c | 330 | |
74ccd7f5 JB |
331 | /* Return a pointer to the function that should be used to match |
332 | a symbol name against LOOKUP_NAME. This is mostly for languages | |
333 | such as Ada where the matching algorithm depends on LOOKUP_NAME. | |
f8eba3c6 | 334 | |
74ccd7f5 JB |
335 | This field may be NULL, in which case strcmp_iw will be used |
336 | to perform the matching. */ | |
1a119f36 | 337 | symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name); |
f8eba3c6 TT |
338 | |
339 | /* Find all symbols in the current program space matching NAME in | |
340 | DOMAIN, according to this language's rules. | |
341 | ||
342 | The search starts with BLOCK. This function iterates upward | |
343 | through blocks. When the outermost block has been finished, | |
344 | the function returns. | |
345 | ||
346 | For each one, call CALLBACK with the symbol and the DATA | |
347 | argument. If CALLBACK returns zero, the iteration ends at that | |
348 | point. | |
349 | ||
72e1143f TT |
350 | This field may not be NULL. If the language does not need any |
351 | special processing here, 'iterate_over_symbols' should be | |
352 | used as the definition. */ | |
f8eba3c6 TT |
353 | void (*la_iterate_over_symbols) (const struct block *block, |
354 | const char *name, | |
355 | domain_enum domain, | |
8e704927 | 356 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
357 | void *data); |
358 | ||
1777feb0 MS |
359 | /* Add fields above this point, so the magic number is always last. */ |
360 | /* Magic number for compat checking. */ | |
c5aa993b JM |
361 | |
362 | long la_magic; | |
363 | ||
364 | }; | |
c906108c SS |
365 | |
366 | #define LANG_MAGIC 910823L | |
367 | ||
368 | /* Pointer to the language_defn for our current language. This pointer | |
369 | always points to *some* valid struct; it can be used without checking | |
370 | it for validity. | |
371 | ||
372 | The current language affects expression parsing and evaluation | |
373 | (FIXME: it might be cleaner to make the evaluation-related stuff | |
374 | separate exp_opcodes for each different set of semantics. We | |
375 | should at least think this through more clearly with respect to | |
376 | what happens if the language is changed between parsing and | |
377 | evaluation) and printing of things like types and arrays. It does | |
378 | *not* affect symbol-reading-- each source file in a symbol-file has | |
379 | its own language and we should keep track of that regardless of the | |
380 | language when symbols are read. If we want some manual setting for | |
381 | the language of symbol files (e.g. detecting when ".c" files are | |
7e73cedf | 382 | C++), it should be a separate setting from the current_language. */ |
c906108c SS |
383 | |
384 | extern const struct language_defn *current_language; | |
385 | ||
386 | /* Pointer to the language_defn expected by the user, e.g. the language | |
387 | of main(), or the language we last mentioned in a message, or C. */ | |
388 | ||
389 | extern const struct language_defn *expected_language; | |
390 | ||
391 | /* language_mode == | |
392 | language_mode_auto: current_language automatically set upon selection | |
c5aa993b | 393 | of scope (e.g. stack frame) |
c906108c SS |
394 | language_mode_manual: current_language set only by user. */ |
395 | ||
396 | extern enum language_mode | |
c5aa993b JM |
397 | { |
398 | language_mode_auto, language_mode_manual | |
399 | } | |
400 | language_mode; | |
b62f3443 | 401 | |
fbb06eb1 UW |
402 | struct type *language_bool_type (const struct language_defn *l, |
403 | struct gdbarch *gdbarch); | |
404 | ||
b62f3443 JB |
405 | struct type *language_string_char_type (const struct language_defn *l, |
406 | struct gdbarch *gdbarch); | |
407 | ||
408 | struct type *language_lookup_primitive_type_by_name (const struct language_defn *l, | |
409 | struct gdbarch *gdbarch, | |
410 | const char *name); | |
411 | ||
c906108c SS |
412 | \f |
413 | /* These macros define the behaviour of the expression | |
414 | evaluator. */ | |
415 | ||
1777feb0 | 416 | /* Should we strictly type check expressions? */ |
c906108c SS |
417 | #define STRICT_TYPE (type_check != type_check_off) |
418 | ||
1777feb0 | 419 | /* Should we range check values against the domain of their type? */ |
c906108c SS |
420 | #define RANGE_CHECK (range_check != range_check_off) |
421 | ||
1777feb0 MS |
422 | /* "cast" really means conversion. */ |
423 | /* FIXME -- should be a setting in language_defn. */ | |
cc73bb8c TT |
424 | #define CAST_IS_CONVERSION(LANG) ((LANG)->la_language == language_c || \ |
425 | (LANG)->la_language == language_cplus || \ | |
426 | (LANG)->la_language == language_objc) | |
c906108c | 427 | |
a14ed312 | 428 | extern void language_info (int); |
c906108c | 429 | |
a14ed312 | 430 | extern enum language set_language (enum language); |
c906108c | 431 | \f |
c5aa993b | 432 | |
c906108c SS |
433 | /* This page contains functions that return things that are |
434 | specific to languages. Each of these functions is based on | |
435 | the current setting of working_lang, which the user sets | |
1777feb0 | 436 | with the "set language" command. */ |
c906108c | 437 | |
c906108c SS |
438 | #define LA_PRINT_TYPE(type,varstring,stream,show,level) \ |
439 | (current_language->la_print_type(type,varstring,stream,show,level)) | |
440 | ||
5c6ce71d TT |
441 | #define LA_PRINT_TYPEDEF(type,new_symbol,stream) \ |
442 | (current_language->la_print_typedef(type,new_symbol,stream)) | |
443 | ||
0e03807e | 444 | #define LA_VAL_PRINT(type,valaddr,offset,addr,stream,val,recurse,options) \ |
79a45b7d | 445 | (current_language->la_val_print(type,valaddr,offset,addr,stream, \ |
0e03807e | 446 | val,recurse,options)) |
79a45b7d TT |
447 | #define LA_VALUE_PRINT(val,stream,options) \ |
448 | (current_language->la_value_print(val,stream,options)) | |
c906108c | 449 | |
6c7a06a3 TT |
450 | #define LA_PRINT_CHAR(ch, type, stream) \ |
451 | (current_language->la_printchar(ch, type, stream)) | |
3e43a32a | 452 | #define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \ |
6c7a06a3 | 453 | (current_language->la_printstr(stream, elttype, string, length, \ |
be759fcf | 454 | encoding, force_ellipses,options)) |
6c7a06a3 TT |
455 | #define LA_EMIT_CHAR(ch, type, stream, quoter) \ |
456 | (current_language->la_emitchar(ch, type, stream, quoter)) | |
96c07c5b TT |
457 | #define LA_GET_STRING(value, buffer, length, chartype, encoding) \ |
458 | (current_language->la_get_string(value, buffer, length, chartype, encoding)) | |
c906108c | 459 | |
577ce03a | 460 | #define LA_PRINT_ARRAY_INDEX(index_value, stream, options) \ |
79a45b7d | 461 | (current_language->la_print_array_index(index_value, stream, options)) |
e79af960 | 462 | |
f8eba3c6 TT |
463 | #define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK, DATA) \ |
464 | (current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK, \ | |
465 | DATA)) | |
466 | ||
c906108c SS |
467 | /* Test a character to decide whether it can be printed in literal form |
468 | or needs to be printed in another representation. For example, | |
469 | in C the literal form of the character with octal value 141 is 'a' | |
470 | and the "other representation" is '\141'. The "other representation" | |
1777feb0 | 471 | is program language dependent. */ |
c906108c SS |
472 | |
473 | #define PRINT_LITERAL_FORM(c) \ | |
474 | ((c) >= 0x20 \ | |
475 | && ((c) < 0x7F || (c) >= 0xA0) \ | |
476 | && (!sevenbit_strings || (c) < 0x80)) | |
477 | ||
c906108c SS |
478 | /* Type predicates */ |
479 | ||
a14ed312 | 480 | extern int pointer_type (struct type *); |
c906108c | 481 | |
1777feb0 MS |
482 | /* Checks Binary and Unary operations for semantic type correctness. */ |
483 | /* FIXME: Does not appear to be used. */ | |
c906108c SS |
484 | #define unop_type_check(v,o) binop_type_check((v),NULL,(o)) |
485 | ||
a14ed312 | 486 | extern void binop_type_check (struct value *, struct value *, int); |
c906108c SS |
487 | |
488 | /* Error messages */ | |
489 | ||
a0b31db1 | 490 | extern void type_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
c906108c | 491 | |
a0b31db1 | 492 | extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
c906108c SS |
493 | |
494 | /* Data: Does this value represent "truth" to the current language? */ | |
495 | ||
a14ed312 | 496 | extern int value_true (struct value *); |
c906108c | 497 | |
c906108c SS |
498 | /* Misc: The string representing a particular enum language. */ |
499 | ||
a14ed312 | 500 | extern enum language language_enum (char *str); |
c906108c | 501 | |
a14ed312 | 502 | extern const struct language_defn *language_def (enum language); |
7a292a7a | 503 | |
a14ed312 | 504 | extern char *language_str (enum language); |
c906108c SS |
505 | |
506 | /* Add a language to the set known by GDB (at initialization time). */ | |
507 | ||
a14ed312 | 508 | extern void add_language (const struct language_defn *); |
c906108c | 509 | |
a14ed312 | 510 | extern enum language get_frame_language (void); /* In stack.c */ |
c906108c | 511 | |
1777feb0 | 512 | /* Check for a language-specific trampoline. */ |
f636b87d | 513 | |
52f729a7 | 514 | extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 515 | |
9a3d7dfd AF |
516 | /* Return demangled language symbol, or NULL. */ |
517 | extern char *language_demangle (const struct language_defn *current_language, | |
518 | const char *mangled, int options); | |
519 | ||
31c27f77 JJ |
520 | /* Return class name from physname, or NULL. */ |
521 | extern char *language_class_name_from_physname (const struct language_defn *, | |
522 | const char *physname); | |
523 | ||
9f0a5303 JB |
524 | /* Splitting strings into words. */ |
525 | extern char *default_word_break_characters (void); | |
526 | ||
e79af960 JB |
527 | /* Print the index of an array element using the C99 syntax. */ |
528 | extern void default_print_array_index (struct value *index_value, | |
529 | struct ui_file *stream, | |
79a45b7d | 530 | const struct value_print_options *options); |
e79af960 | 531 | |
41f1b697 DJ |
532 | /* Return non-zero if TYPE should be passed (and returned) by |
533 | reference at the language level. */ | |
534 | int language_pass_by_reference (struct type *type); | |
535 | ||
536 | /* Return zero; by default, types are passed by value at the language | |
537 | level. The target ABI may pass or return some structs by reference | |
538 | independent of this. */ | |
539 | int default_pass_by_reference (struct type *type); | |
540 | ||
5c6ce71d TT |
541 | /* The default implementation of la_print_typedef. */ |
542 | void default_print_typedef (struct type *type, struct symbol *new_symbol, | |
543 | struct ui_file *stream); | |
544 | ||
ae6a3a4c | 545 | void default_get_string (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 546 | struct type **char_type, const char **charset); |
ae6a3a4c TJB |
547 | |
548 | void c_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 549 | struct type **char_type, const char **charset); |
ae6a3a4c | 550 | |
c5aa993b | 551 | #endif /* defined (LANGUAGE_H) */ |