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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; |
bb2ec1b3 | 38 | struct compile_instance; |
62dfaa9c | 39 | |
1777feb0 | 40 | #define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */ |
c906108c SS |
41 | |
42 | /* range_mode == | |
43 | range_mode_auto: range_check set automatically to default of language. | |
44 | range_mode_manual: range_check set manually by user. */ | |
45 | ||
c5aa993b JM |
46 | extern enum range_mode |
47 | { | |
48 | range_mode_auto, range_mode_manual | |
49 | } | |
50 | range_mode; | |
c906108c SS |
51 | |
52 | /* range_check == | |
53 | range_check_on: Ranges are checked in GDB expressions, producing errors. | |
54 | range_check_warn: Ranges are checked, producing warnings. | |
55 | range_check_off: Ranges are not checked in GDB expressions. */ | |
56 | ||
57 | extern enum range_check | |
c5aa993b JM |
58 | { |
59 | range_check_off, range_check_warn, range_check_on | |
60 | } | |
61 | range_check; | |
c906108c | 62 | |
63872f9d | 63 | /* case_mode == |
1777feb0 | 64 | case_mode_auto: case_sensitivity set upon selection of scope. |
63872f9d JG |
65 | case_mode_manual: case_sensitivity set only by user. */ |
66 | ||
67 | extern enum case_mode | |
68 | { | |
69 | case_mode_auto, case_mode_manual | |
70 | } | |
71 | case_mode; | |
72 | ||
7ca2d3a3 | 73 | /* array_ordering == |
1777feb0 MS |
74 | array_row_major: Arrays are in row major order. |
75 | array_column_major: Arrays are in column major order. */ | |
7ca2d3a3 DL |
76 | |
77 | extern enum array_ordering | |
78 | { | |
79 | array_row_major, array_column_major | |
80 | } | |
81 | array_ordering; | |
82 | ||
83 | ||
63872f9d | 84 | /* case_sensitivity == |
1777feb0 MS |
85 | case_sensitive_on: Case sensitivity in name matching is used. |
86 | case_sensitive_off: Case sensitivity in name matching is not used. */ | |
63872f9d JG |
87 | |
88 | extern enum case_sensitivity | |
89 | { | |
90 | case_sensitive_on, case_sensitive_off | |
91 | } | |
92 | case_sensitivity; | |
9a044a89 TT |
93 | |
94 | ||
95 | /* macro_expansion == | |
1777feb0 MS |
96 | macro_expansion_no: No macro expansion is available. |
97 | macro_expansion_c: C-like macro expansion is available. */ | |
9a044a89 TT |
98 | |
99 | enum macro_expansion | |
100 | { | |
101 | macro_expansion_no, macro_expansion_c | |
102 | }; | |
103 | ||
c906108c | 104 | \f |
f290d38e AC |
105 | /* Per architecture (OS/ABI) language information. */ |
106 | ||
107 | struct language_arch_info | |
108 | { | |
5a44ea29 | 109 | /* Its primitive types. This is a vector ended by a NULL pointer. |
f290d38e AC |
110 | These types can be specified by name in parsing types in |
111 | expressions, regardless of whether the program being debugged | |
112 | actually defines such a type. */ | |
5a44ea29 | 113 | struct type **primitive_type_vector; |
1777feb0 | 114 | /* Type of elements of strings. */ |
f290d38e | 115 | struct type *string_char_type; |
fbb06eb1 UW |
116 | |
117 | /* Symbol name of type to use as boolean type, if defined. */ | |
118 | const char *bool_type_symbol; | |
119 | /* Otherwise, this is the default boolean builtin type. */ | |
120 | struct type *bool_type_default; | |
f290d38e AC |
121 | }; |
122 | ||
74ccd7f5 JB |
123 | /* A pointer to a function expected to return nonzero if |
124 | SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME. | |
125 | ||
126 | SYMBOL_SEARCH_NAME should be a symbol's "search" name. | |
127 | LOOKUP_NAME should be the name of an entity after it has been | |
128 | transformed for lookup. */ | |
129 | ||
1a119f36 | 130 | typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name, |
74ccd7f5 JB |
131 | const char *lookup_name); |
132 | ||
c906108c SS |
133 | /* Structure tying together assorted information about a language. */ |
134 | ||
135 | struct language_defn | |
c5aa993b | 136 | { |
1777feb0 | 137 | /* Name of the language. */ |
c906108c | 138 | |
27cd387b | 139 | const char *la_name; |
c906108c | 140 | |
6abde28f YQ |
141 | /* Natural or official name of the language. */ |
142 | ||
143 | const char *la_natural_name; | |
144 | ||
1777feb0 | 145 | /* its symtab language-enum (defs.h). */ |
c906108c | 146 | |
c5aa993b | 147 | enum language la_language; |
c906108c | 148 | |
1777feb0 | 149 | /* Default range checking. */ |
c906108c | 150 | |
c5aa993b | 151 | enum range_check la_range_check; |
c906108c | 152 | |
1777feb0 | 153 | /* Default case sensitivity. */ |
63872f9d JG |
154 | enum case_sensitivity la_case_sensitivity; |
155 | ||
1777feb0 | 156 | /* Multi-dimensional array ordering. */ |
7ca2d3a3 DL |
157 | enum array_ordering la_array_ordering; |
158 | ||
9a044a89 TT |
159 | /* Style of macro expansion, if any, supported by this language. */ |
160 | enum macro_expansion la_macro_expansion; | |
161 | ||
5f9769d1 | 162 | /* Definitions related to expression printing, prefixifying, and |
1777feb0 | 163 | dumping. */ |
5f9769d1 PH |
164 | |
165 | const struct exp_descriptor *la_exp_desc; | |
166 | ||
1777feb0 | 167 | /* Parser function. */ |
c906108c | 168 | |
410a0ff2 | 169 | int (*la_parser) (struct parser_state *); |
c906108c | 170 | |
1777feb0 | 171 | /* Parser error function. */ |
c906108c | 172 | |
507f3c78 | 173 | void (*la_error) (char *); |
c906108c | 174 | |
e85c3284 PH |
175 | /* Given an expression *EXPP created by prefixifying the result of |
176 | la_parser, perform any remaining processing necessary to complete | |
177 | its translation. *EXPP may change; la_post_parser is responsible | |
178 | for releasing its previous contents, if necessary. If | |
179 | VOID_CONTEXT_P, then no value is expected from the expression. */ | |
180 | ||
181 | void (*la_post_parser) (struct expression ** expp, int void_context_p); | |
182 | ||
3e43a32a MS |
183 | void (*la_printchar) (int ch, struct type *chtype, |
184 | struct ui_file * stream); | |
c906108c | 185 | |
6c7a06a3 TT |
186 | void (*la_printstr) (struct ui_file * stream, struct type *elttype, |
187 | const gdb_byte *string, unsigned int length, | |
be759fcf | 188 | const char *encoding, int force_ellipses, |
79a45b7d | 189 | const struct value_print_options *); |
c906108c | 190 | |
6c7a06a3 TT |
191 | void (*la_emitchar) (int ch, struct type *chtype, |
192 | struct ui_file * stream, int quoter); | |
c906108c | 193 | |
1777feb0 | 194 | /* Print a type using syntax appropriate for this language. */ |
c906108c | 195 | |
25b524e8 | 196 | void (*la_print_type) (struct type *, const char *, struct ui_file *, int, |
79d43c61 | 197 | int, const struct type_print_options *); |
c906108c | 198 | |
5c6ce71d TT |
199 | /* Print a typedef using syntax appropriate for this language. |
200 | TYPE is the underlying type. NEW_SYMBOL is the symbol naming | |
201 | the type. STREAM is the output stream on which to print. */ | |
202 | ||
203 | void (*la_print_typedef) (struct type *type, struct symbol *new_symbol, | |
204 | struct ui_file *stream); | |
205 | ||
edf3d5f3 TT |
206 | /* Print a value using syntax appropriate for this language. |
207 | ||
208 | TYPE is the type of the sub-object to be printed. | |
c906108c | 209 | |
edf3d5f3 TT |
210 | CONTENTS holds the bits of the value. This holds the entire |
211 | enclosing object. | |
212 | ||
213 | EMBEDDED_OFFSET is the offset into the outermost object of the | |
214 | sub-object represented by TYPE. This is the object which this | |
215 | call should print. Note that the enclosing type is not | |
216 | available. | |
217 | ||
218 | ADDRESS is the address in the inferior of the enclosing object. | |
219 | ||
220 | STREAM is the stream on which the value is to be printed. | |
221 | ||
222 | RECURSE is the recursion depth. It is zero-based. | |
223 | ||
224 | OPTIONS are the formatting options to be used when | |
225 | printing. */ | |
226 | ||
d3eab38a TT |
227 | void (*la_val_print) (struct type *type, |
228 | const gdb_byte *contents, | |
229 | int embedded_offset, CORE_ADDR address, | |
230 | struct ui_file *stream, int recurse, | |
231 | const struct value *val, | |
232 | const struct value_print_options *options); | |
c906108c | 233 | |
1777feb0 | 234 | /* Print a top-level value using syntax appropriate for this language. */ |
c906108c | 235 | |
8e069a98 TT |
236 | void (*la_value_print) (struct value *, struct ui_file *, |
237 | const struct value_print_options *); | |
c906108c | 238 | |
a5ee536b JB |
239 | /* Given a symbol VAR, and a stack frame id FRAME, read the value |
240 | of the variable an return (pointer to a) struct value containing | |
241 | the value. | |
242 | ||
243 | Throw an error if the variable cannot be found. */ | |
244 | ||
245 | struct value *(*la_read_var_value) (struct symbol *var, | |
246 | struct frame_info *frame); | |
247 | ||
f636b87d AF |
248 | /* PC is possibly an unknown languages trampoline. |
249 | If that PC falls in a trampoline belonging to this language, | |
250 | return the address of the first pc in the real function, or 0 | |
251 | if it isn't a language tramp for this language. */ | |
52f729a7 | 252 | CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR); |
f636b87d | 253 | |
5f9a71c3 DC |
254 | /* Now come some hooks for lookup_symbol. */ |
255 | ||
2b2d9e11 VP |
256 | /* If this is non-NULL, specifies the name that of the implicit |
257 | local variable that refers to the current object instance. */ | |
5f9a71c3 | 258 | |
2b2d9e11 | 259 | char *la_name_of_this; |
5f9a71c3 DC |
260 | |
261 | /* This is a function that lookup_symbol will call when it gets to | |
262 | the part of symbol lookup where C looks up static and global | |
263 | variables. */ | |
264 | ||
265 | struct symbol *(*la_lookup_symbol_nonlocal) (const char *, | |
5f9a71c3 | 266 | const struct block *, |
21b556f4 | 267 | const domain_enum); |
5f9a71c3 | 268 | |
b368761e DC |
269 | /* Find the definition of the type with the given name. */ |
270 | struct type *(*la_lookup_transparent_type) (const char *); | |
271 | ||
9a3d7dfd AF |
272 | /* Return demangled language symbol, or NULL. */ |
273 | char *(*la_demangle) (const char *mangled, int options); | |
274 | ||
31c27f77 JJ |
275 | /* Return class name of a mangled method name or NULL. */ |
276 | char *(*la_class_name_from_physname) (const char *physname); | |
277 | ||
1777feb0 | 278 | /* Table for printing expressions. */ |
c906108c | 279 | |
c5aa993b | 280 | const struct op_print *la_op_print_tab; |
c906108c | 281 | |
c5aa993b | 282 | /* Zero if the language has first-class arrays. True if there are no |
1777feb0 | 283 | array values, and array objects decay to pointers, as in C. */ |
c906108c | 284 | |
c5aa993b | 285 | char c_style_arrays; |
c906108c | 286 | |
1777feb0 | 287 | /* Index to use for extracting the first element of a string. */ |
c5aa993b | 288 | char string_lower_bound; |
c906108c | 289 | |
6084f43a JB |
290 | /* The list of characters forming word boundaries. */ |
291 | char *(*la_word_break_characters) (void); | |
292 | ||
49c4e619 TT |
293 | /* Should return a vector of all symbols which are possible |
294 | completions for TEXT. WORD is the entire command on which the | |
2f68a895 TT |
295 | completion is being made. If CODE is TYPE_CODE_UNDEF, then all |
296 | symbols should be examined; otherwise, only STRUCT_DOMAIN | |
297 | symbols whose type has a code of CODE should be matched. */ | |
6f937416 PA |
298 | VEC (char_ptr) *(*la_make_symbol_completion_list) (const char *text, |
299 | const char *word, | |
2f68a895 | 300 | enum type_code code); |
41d27058 | 301 | |
f290d38e AC |
302 | /* The per-architecture (OS/ABI) language information. */ |
303 | void (*la_language_arch_info) (struct gdbarch *, | |
304 | struct language_arch_info *); | |
305 | ||
e79af960 JB |
306 | /* Print the index of an element of an array. */ |
307 | void (*la_print_array_index) (struct value *index_value, | |
308 | struct ui_file *stream, | |
79a45b7d | 309 | const struct value_print_options *options); |
e79af960 | 310 | |
41f1b697 DJ |
311 | /* Return non-zero if TYPE should be passed (and returned) by |
312 | reference at the language level. */ | |
313 | int (*la_pass_by_reference) (struct type *type); | |
314 | ||
ae6a3a4c | 315 | /* Obtain a string from the inferior, storing it in a newly allocated |
fbb8f299 PM |
316 | buffer in BUFFER, which should be freed by the caller. If the |
317 | in- and out-parameter *LENGTH is specified at -1, the string is | |
318 | read until a null character of the appropriate width is found - | |
319 | otherwise the string is read to the length of characters specified. | |
320 | On completion, *LENGTH will hold the size of the string in characters. | |
321 | If a *LENGTH of -1 was specified it will count only actual | |
322 | characters, excluding any eventual terminating null character. | |
323 | Otherwise *LENGTH will include all characters - including any nulls. | |
324 | CHARSET will hold the encoding used in the string. */ | |
ae6a3a4c | 325 | void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 326 | struct type **chartype, const char **charset); |
ae6a3a4c | 327 | |
74ccd7f5 JB |
328 | /* Return a pointer to the function that should be used to match |
329 | a symbol name against LOOKUP_NAME. This is mostly for languages | |
330 | such as Ada where the matching algorithm depends on LOOKUP_NAME. | |
f8eba3c6 | 331 | |
74ccd7f5 JB |
332 | This field may be NULL, in which case strcmp_iw will be used |
333 | to perform the matching. */ | |
1a119f36 | 334 | symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name); |
f8eba3c6 TT |
335 | |
336 | /* Find all symbols in the current program space matching NAME in | |
337 | DOMAIN, according to this language's rules. | |
338 | ||
4eeaa230 DE |
339 | The search is done in BLOCK only. |
340 | The caller is responsible for iterating up through superblocks | |
341 | if desired. | |
f8eba3c6 TT |
342 | |
343 | For each one, call CALLBACK with the symbol and the DATA | |
344 | argument. If CALLBACK returns zero, the iteration ends at that | |
345 | point. | |
346 | ||
72e1143f TT |
347 | This field may not be NULL. If the language does not need any |
348 | special processing here, 'iterate_over_symbols' should be | |
349 | used as the definition. */ | |
f8eba3c6 TT |
350 | void (*la_iterate_over_symbols) (const struct block *block, |
351 | const char *name, | |
352 | domain_enum domain, | |
8e704927 | 353 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
354 | void *data); |
355 | ||
a53b64ea YQ |
356 | /* Various operations on varobj. */ |
357 | const struct lang_varobj_ops *la_varobj_ops; | |
358 | ||
bb2ec1b3 TT |
359 | /* If this language allows compilation from the gdb command line, |
360 | this method should be non-NULL. When called it should return | |
361 | an instance of struct gcc_context appropriate to the language. | |
362 | When defined this method must never return NULL; instead it | |
363 | should throw an exception on failure. The returned compiler | |
364 | instance is owned by its caller and must be deallocated by | |
365 | calling its 'destroy' method. */ | |
366 | ||
367 | struct compile_instance *(*la_get_compile_instance) (void); | |
368 | ||
369 | /* This method must be defined if 'la_get_gcc_context' is defined. | |
370 | If 'la_get_gcc_context' is not defined, then this method is | |
371 | ignored. | |
372 | ||
373 | This takes the user-supplied text and returns a newly malloc'd | |
374 | bit of code to compile. The caller owns the result. | |
375 | ||
376 | INST is the compiler instance being used. | |
377 | INPUT is the user's input text. | |
378 | GDBARCH is the architecture to use. | |
379 | EXPR_BLOCK is the block in which the expression is being | |
380 | parsed. | |
381 | EXPR_PC is the PC at which the expression is being parsed. */ | |
382 | ||
383 | char *(*la_compute_program) (struct compile_instance *inst, | |
384 | const char *input, | |
385 | struct gdbarch *gdbarch, | |
386 | const struct block *expr_block, | |
387 | CORE_ADDR expr_pc); | |
388 | ||
1777feb0 MS |
389 | /* Add fields above this point, so the magic number is always last. */ |
390 | /* Magic number for compat checking. */ | |
c5aa993b JM |
391 | |
392 | long la_magic; | |
393 | ||
394 | }; | |
c906108c SS |
395 | |
396 | #define LANG_MAGIC 910823L | |
397 | ||
398 | /* Pointer to the language_defn for our current language. This pointer | |
399 | always points to *some* valid struct; it can be used without checking | |
400 | it for validity. | |
401 | ||
402 | The current language affects expression parsing and evaluation | |
403 | (FIXME: it might be cleaner to make the evaluation-related stuff | |
404 | separate exp_opcodes for each different set of semantics. We | |
405 | should at least think this through more clearly with respect to | |
406 | what happens if the language is changed between parsing and | |
407 | evaluation) and printing of things like types and arrays. It does | |
408 | *not* affect symbol-reading-- each source file in a symbol-file has | |
409 | its own language and we should keep track of that regardless of the | |
410 | language when symbols are read. If we want some manual setting for | |
411 | the language of symbol files (e.g. detecting when ".c" files are | |
7e73cedf | 412 | C++), it should be a separate setting from the current_language. */ |
c906108c SS |
413 | |
414 | extern const struct language_defn *current_language; | |
415 | ||
416 | /* Pointer to the language_defn expected by the user, e.g. the language | |
417 | of main(), or the language we last mentioned in a message, or C. */ | |
418 | ||
419 | extern const struct language_defn *expected_language; | |
420 | ||
421 | /* language_mode == | |
422 | language_mode_auto: current_language automatically set upon selection | |
c5aa993b | 423 | of scope (e.g. stack frame) |
c906108c SS |
424 | language_mode_manual: current_language set only by user. */ |
425 | ||
426 | extern enum language_mode | |
c5aa993b JM |
427 | { |
428 | language_mode_auto, language_mode_manual | |
429 | } | |
430 | language_mode; | |
b62f3443 | 431 | |
fbb06eb1 UW |
432 | struct type *language_bool_type (const struct language_defn *l, |
433 | struct gdbarch *gdbarch); | |
434 | ||
b62f3443 JB |
435 | struct type *language_string_char_type (const struct language_defn *l, |
436 | struct gdbarch *gdbarch); | |
437 | ||
46b0da17 DE |
438 | struct type *language_lookup_primitive_type (const struct language_defn *l, |
439 | struct gdbarch *gdbarch, | |
440 | const char *name); | |
b62f3443 | 441 | |
c906108c SS |
442 | \f |
443 | /* These macros define the behaviour of the expression | |
444 | evaluator. */ | |
445 | ||
1777feb0 | 446 | /* Should we range check values against the domain of their type? */ |
c906108c SS |
447 | #define RANGE_CHECK (range_check != range_check_off) |
448 | ||
1777feb0 MS |
449 | /* "cast" really means conversion. */ |
450 | /* FIXME -- should be a setting in language_defn. */ | |
cc73bb8c TT |
451 | #define CAST_IS_CONVERSION(LANG) ((LANG)->la_language == language_c || \ |
452 | (LANG)->la_language == language_cplus || \ | |
453 | (LANG)->la_language == language_objc) | |
c906108c | 454 | |
a14ed312 | 455 | extern void language_info (int); |
c906108c | 456 | |
a14ed312 | 457 | extern enum language set_language (enum language); |
c906108c | 458 | \f |
c5aa993b | 459 | |
c906108c SS |
460 | /* This page contains functions that return things that are |
461 | specific to languages. Each of these functions is based on | |
462 | the current setting of working_lang, which the user sets | |
1777feb0 | 463 | with the "set language" command. */ |
c906108c | 464 | |
79d43c61 TT |
465 | #define LA_PRINT_TYPE(type,varstring,stream,show,level,flags) \ |
466 | (current_language->la_print_type(type,varstring,stream,show,level,flags)) | |
c906108c | 467 | |
5c6ce71d TT |
468 | #define LA_PRINT_TYPEDEF(type,new_symbol,stream) \ |
469 | (current_language->la_print_typedef(type,new_symbol,stream)) | |
470 | ||
0e03807e | 471 | #define LA_VAL_PRINT(type,valaddr,offset,addr,stream,val,recurse,options) \ |
79a45b7d | 472 | (current_language->la_val_print(type,valaddr,offset,addr,stream, \ |
0e03807e | 473 | val,recurse,options)) |
79a45b7d TT |
474 | #define LA_VALUE_PRINT(val,stream,options) \ |
475 | (current_language->la_value_print(val,stream,options)) | |
c906108c | 476 | |
6c7a06a3 TT |
477 | #define LA_PRINT_CHAR(ch, type, stream) \ |
478 | (current_language->la_printchar(ch, type, stream)) | |
3e43a32a | 479 | #define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \ |
6c7a06a3 | 480 | (current_language->la_printstr(stream, elttype, string, length, \ |
be759fcf | 481 | encoding, force_ellipses,options)) |
6c7a06a3 TT |
482 | #define LA_EMIT_CHAR(ch, type, stream, quoter) \ |
483 | (current_language->la_emitchar(ch, type, stream, quoter)) | |
96c07c5b TT |
484 | #define LA_GET_STRING(value, buffer, length, chartype, encoding) \ |
485 | (current_language->la_get_string(value, buffer, length, chartype, encoding)) | |
c906108c | 486 | |
577ce03a | 487 | #define LA_PRINT_ARRAY_INDEX(index_value, stream, options) \ |
79a45b7d | 488 | (current_language->la_print_array_index(index_value, stream, options)) |
e79af960 | 489 | |
f8eba3c6 TT |
490 | #define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK, DATA) \ |
491 | (current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK, \ | |
492 | DATA)) | |
493 | ||
c906108c SS |
494 | /* Test a character to decide whether it can be printed in literal form |
495 | or needs to be printed in another representation. For example, | |
496 | in C the literal form of the character with octal value 141 is 'a' | |
497 | and the "other representation" is '\141'. The "other representation" | |
1777feb0 | 498 | is program language dependent. */ |
c906108c SS |
499 | |
500 | #define PRINT_LITERAL_FORM(c) \ | |
501 | ((c) >= 0x20 \ | |
502 | && ((c) < 0x7F || (c) >= 0xA0) \ | |
503 | && (!sevenbit_strings || (c) < 0x80)) | |
504 | ||
c906108c SS |
505 | /* Type predicates */ |
506 | ||
a14ed312 | 507 | extern int pointer_type (struct type *); |
c906108c | 508 | |
c906108c SS |
509 | /* Error messages */ |
510 | ||
a0b31db1 | 511 | extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
c906108c SS |
512 | |
513 | /* Data: Does this value represent "truth" to the current language? */ | |
514 | ||
a14ed312 | 515 | extern int value_true (struct value *); |
c906108c | 516 | |
c906108c SS |
517 | /* Misc: The string representing a particular enum language. */ |
518 | ||
a14ed312 | 519 | extern enum language language_enum (char *str); |
c906108c | 520 | |
a14ed312 | 521 | extern const struct language_defn *language_def (enum language); |
7a292a7a | 522 | |
27cd387b | 523 | extern const char *language_str (enum language); |
c906108c SS |
524 | |
525 | /* Add a language to the set known by GDB (at initialization time). */ | |
526 | ||
a14ed312 | 527 | extern void add_language (const struct language_defn *); |
c906108c | 528 | |
a14ed312 | 529 | extern enum language get_frame_language (void); /* In stack.c */ |
c906108c | 530 | |
1777feb0 | 531 | /* Check for a language-specific trampoline. */ |
f636b87d | 532 | |
52f729a7 | 533 | extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 534 | |
9a3d7dfd AF |
535 | /* Return demangled language symbol, or NULL. */ |
536 | extern char *language_demangle (const struct language_defn *current_language, | |
537 | const char *mangled, int options); | |
538 | ||
31c27f77 JJ |
539 | /* Return class name from physname, or NULL. */ |
540 | extern char *language_class_name_from_physname (const struct language_defn *, | |
541 | const char *physname); | |
542 | ||
9f0a5303 JB |
543 | /* Splitting strings into words. */ |
544 | extern char *default_word_break_characters (void); | |
545 | ||
e79af960 JB |
546 | /* Print the index of an array element using the C99 syntax. */ |
547 | extern void default_print_array_index (struct value *index_value, | |
548 | struct ui_file *stream, | |
79a45b7d | 549 | const struct value_print_options *options); |
e79af960 | 550 | |
41f1b697 DJ |
551 | /* Return non-zero if TYPE should be passed (and returned) by |
552 | reference at the language level. */ | |
553 | int language_pass_by_reference (struct type *type); | |
554 | ||
555 | /* Return zero; by default, types are passed by value at the language | |
556 | level. The target ABI may pass or return some structs by reference | |
557 | independent of this. */ | |
558 | int default_pass_by_reference (struct type *type); | |
559 | ||
5c6ce71d TT |
560 | /* The default implementation of la_print_typedef. */ |
561 | void default_print_typedef (struct type *type, struct symbol *new_symbol, | |
562 | struct ui_file *stream); | |
563 | ||
ae6a3a4c | 564 | void default_get_string (struct value *value, gdb_byte **buffer, int *length, |
96c07c5b | 565 | struct type **char_type, const char **charset); |
ae6a3a4c TJB |
566 | |
567 | void c_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 568 | struct type **char_type, const char **charset); |
ae6a3a4c | 569 | |
c5aa993b | 570 | #endif /* defined (LANGUAGE_H) */ |