Commit | Line | Data |
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c906108c | 1 | /* C language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1992-2014 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "expression.h" | |
24 | #include "parser-defs.h" | |
25 | #include "language.h" | |
a53b64ea | 26 | #include "varobj.h" |
c906108c | 27 | #include "c-lang.h" |
745b8ca0 | 28 | #include "valprint.h" |
84f0252a JB |
29 | #include "macroscope.h" |
30 | #include "gdb_assert.h" | |
234b45d4 | 31 | #include "charset.h" |
0e9f083f | 32 | #include <string.h> |
9a3d7dfd | 33 | #include "demangle.h" |
b18be20d | 34 | #include "cp-abi.h" |
1fcb5155 | 35 | #include "cp-support.h" |
6c7a06a3 TT |
36 | #include "gdb_obstack.h" |
37 | #include <ctype.h> | |
621c8364 | 38 | #include "exceptions.h" |
578d3588 | 39 | #include "gdbcore.h" |
c906108c | 40 | |
a14ed312 | 41 | extern void _initialize_c_language (void); |
6c7a06a3 TT |
42 | |
43 | /* Given a C string type, STR_TYPE, return the corresponding target | |
44 | character set name. */ | |
45 | ||
46 | static const char * | |
e17a4113 | 47 | charset_for_string_type (enum c_string_type str_type, |
f870a310 | 48 | struct gdbarch *gdbarch) |
6c7a06a3 TT |
49 | { |
50 | switch (str_type & ~C_CHAR) | |
51 | { | |
52 | case C_STRING: | |
f870a310 | 53 | return target_charset (gdbarch); |
6c7a06a3 | 54 | case C_WIDE_STRING: |
f870a310 | 55 | return target_wide_charset (gdbarch); |
6c7a06a3 | 56 | case C_STRING_16: |
b8899f2b | 57 | /* FIXME: UTF-16 is not always correct. */ |
f870a310 | 58 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 59 | return "UTF-16BE"; |
6c7a06a3 | 60 | else |
b8899f2b | 61 | return "UTF-16LE"; |
6c7a06a3 | 62 | case C_STRING_32: |
b8899f2b | 63 | /* FIXME: UTF-32 is not always correct. */ |
f870a310 | 64 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 65 | return "UTF-32BE"; |
6c7a06a3 | 66 | else |
b8899f2b | 67 | return "UTF-32LE"; |
6c7a06a3 | 68 | } |
9b20d036 | 69 | internal_error (__FILE__, __LINE__, _("unhandled c_string_type")); |
6c7a06a3 TT |
70 | } |
71 | ||
72 | /* Classify ELTTYPE according to what kind of character it is. Return | |
73 | the enum constant representing the character type. Also set | |
74 | *ENCODING to the name of the character set to use when converting | |
aff410f1 MS |
75 | characters of this type in target BYTE_ORDER to the host character |
76 | set. */ | |
6c7a06a3 TT |
77 | |
78 | static enum c_string_type | |
f870a310 | 79 | classify_type (struct type *elttype, struct gdbarch *gdbarch, |
e17a4113 | 80 | const char **encoding) |
6c7a06a3 | 81 | { |
6c7a06a3 TT |
82 | enum c_string_type result; |
83 | ||
85e306ed TT |
84 | /* We loop because ELTTYPE may be a typedef, and we want to |
85 | successively peel each typedef until we reach a type we | |
86 | understand. We don't use CHECK_TYPEDEF because that will strip | |
87 | all typedefs at once -- but in C, wchar_t is itself a typedef, so | |
88 | that would do the wrong thing. */ | |
89 | while (elttype) | |
6c7a06a3 | 90 | { |
0d5cff50 | 91 | const char *name = TYPE_NAME (elttype); |
6c7a06a3 TT |
92 | |
93 | if (TYPE_CODE (elttype) == TYPE_CODE_CHAR || !name) | |
94 | { | |
95 | result = C_CHAR; | |
96 | goto done; | |
97 | } | |
98 | ||
99 | if (!strcmp (name, "wchar_t")) | |
100 | { | |
101 | result = C_WIDE_CHAR; | |
102 | goto done; | |
103 | } | |
104 | ||
105 | if (!strcmp (name, "char16_t")) | |
106 | { | |
107 | result = C_CHAR_16; | |
108 | goto done; | |
109 | } | |
110 | ||
111 | if (!strcmp (name, "char32_t")) | |
112 | { | |
113 | result = C_CHAR_32; | |
114 | goto done; | |
115 | } | |
116 | ||
85e306ed TT |
117 | if (TYPE_CODE (elttype) != TYPE_CODE_TYPEDEF) |
118 | break; | |
119 | ||
120 | /* Call for side effects. */ | |
121 | check_typedef (elttype); | |
122 | ||
123 | if (TYPE_TARGET_TYPE (elttype)) | |
124 | elttype = TYPE_TARGET_TYPE (elttype); | |
125 | else | |
126 | { | |
127 | /* Perhaps check_typedef did not update the target type. In | |
128 | this case, force the lookup again and hope it works out. | |
129 | It never will for C, but it might for C++. */ | |
130 | CHECK_TYPEDEF (elttype); | |
131 | } | |
6c7a06a3 | 132 | } |
6c7a06a3 TT |
133 | |
134 | /* Punt. */ | |
135 | result = C_CHAR; | |
136 | ||
137 | done: | |
e17a4113 | 138 | if (encoding) |
f870a310 | 139 | *encoding = charset_for_string_type (result, gdbarch); |
e17a4113 | 140 | |
6c7a06a3 TT |
141 | return result; |
142 | } | |
143 | ||
aff410f1 MS |
144 | /* Print the character C on STREAM as part of the contents of a |
145 | literal string whose delimiter is QUOTER. Note that that format | |
146 | for printing characters and strings is language specific. */ | |
c906108c | 147 | |
6aecb9c2 JB |
148 | void |
149 | c_emit_char (int c, struct type *type, | |
150 | struct ui_file *stream, int quoter) | |
c906108c | 151 | { |
6c7a06a3 | 152 | const char *encoding; |
234b45d4 | 153 | |
f870a310 | 154 | classify_type (type, get_type_arch (type), &encoding); |
3b2b8fea | 155 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
156 | } |
157 | ||
158 | void | |
6c7a06a3 | 159 | c_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c | 160 | { |
6c7a06a3 | 161 | enum c_string_type str_type; |
6c7a06a3 | 162 | |
f870a310 | 163 | str_type = classify_type (type, get_type_arch (type), NULL); |
6c7a06a3 TT |
164 | switch (str_type) |
165 | { | |
166 | case C_CHAR: | |
167 | break; | |
168 | case C_WIDE_CHAR: | |
169 | fputc_filtered ('L', stream); | |
170 | break; | |
171 | case C_CHAR_16: | |
172 | fputc_filtered ('u', stream); | |
173 | break; | |
174 | case C_CHAR_32: | |
175 | fputc_filtered ('U', stream); | |
176 | break; | |
177 | } | |
178 | ||
c906108c | 179 | fputc_filtered ('\'', stream); |
6c7a06a3 | 180 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
181 | fputc_filtered ('\'', stream); |
182 | } | |
183 | ||
aff410f1 MS |
184 | /* Print the character string STRING, printing at most LENGTH |
185 | characters. LENGTH is -1 if the string is nul terminated. Each | |
186 | character is WIDTH bytes long. Printing stops early if the number | |
187 | hits print_max; repeat counts are printed as appropriate. Print | |
188 | ellipses at the end if we had to stop before printing LENGTH | |
189 | characters, or if FORCE_ELLIPSES. */ | |
c906108c SS |
190 | |
191 | void | |
aff410f1 MS |
192 | c_printstr (struct ui_file *stream, struct type *type, |
193 | const gdb_byte *string, unsigned int length, | |
194 | const char *user_encoding, int force_ellipses, | |
79a45b7d | 195 | const struct value_print_options *options) |
c906108c | 196 | { |
3b2b8fea TT |
197 | enum c_string_type str_type; |
198 | const char *type_encoding; | |
199 | const char *encoding; | |
200 | ||
f870a310 TT |
201 | str_type = (classify_type (type, get_type_arch (type), &type_encoding) |
202 | & ~C_CHAR); | |
6c7a06a3 TT |
203 | switch (str_type) |
204 | { | |
205 | case C_STRING: | |
206 | break; | |
207 | case C_WIDE_STRING: | |
208 | fputs_filtered ("L", stream); | |
209 | break; | |
210 | case C_STRING_16: | |
211 | fputs_filtered ("u", stream); | |
212 | break; | |
213 | case C_STRING_32: | |
214 | fputs_filtered ("U", stream); | |
215 | break; | |
216 | } | |
217 | ||
3b2b8fea | 218 | encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding; |
6c7a06a3 | 219 | |
3b2b8fea TT |
220 | generic_printstr (stream, type, string, length, encoding, force_ellipses, |
221 | '"', 1, options); | |
c906108c | 222 | } |
ae6a3a4c TJB |
223 | |
224 | /* Obtain a C string from the inferior storing it in a newly allocated | |
aff410f1 MS |
225 | buffer in BUFFER, which should be freed by the caller. If the in- |
226 | and out-parameter *LENGTH is specified at -1, the string is read | |
fbb8f299 | 227 | until a null character of the appropriate width is found, otherwise |
aff410f1 MS |
228 | the string is read to the length of characters specified. The size |
229 | of a character is determined by the length of the target type of | |
0987cf35 DE |
230 | the pointer or array. |
231 | ||
232 | If VALUE is an array with a known length, and *LENGTH is -1, | |
233 | the function will not read past the end of the array. However, any | |
234 | declared size of the array is ignored if *LENGTH > 0. | |
235 | ||
236 | On completion, *LENGTH will be set to the size of the string read in | |
fbb8f299 PM |
237 | characters. (If a length of -1 is specified, the length returned |
238 | will not include the null character). CHARSET is always set to the | |
239 | target charset. */ | |
ae6a3a4c TJB |
240 | |
241 | void | |
aff410f1 MS |
242 | c_get_string (struct value *value, gdb_byte **buffer, |
243 | int *length, struct type **char_type, | |
244 | const char **charset) | |
ae6a3a4c TJB |
245 | { |
246 | int err, width; | |
247 | unsigned int fetchlimit; | |
248 | struct type *type = check_typedef (value_type (value)); | |
249 | struct type *element_type = TYPE_TARGET_TYPE (type); | |
fbb8f299 | 250 | int req_length = *length; |
aff410f1 MS |
251 | enum bfd_endian byte_order |
252 | = gdbarch_byte_order (get_type_arch (type)); | |
ae6a3a4c TJB |
253 | |
254 | if (element_type == NULL) | |
255 | goto error; | |
256 | ||
257 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
258 | { | |
aff410f1 MS |
259 | /* If we know the size of the array, we can use it as a limit on |
260 | the number of characters to be fetched. */ | |
ae6a3a4c TJB |
261 | if (TYPE_NFIELDS (type) == 1 |
262 | && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE) | |
263 | { | |
264 | LONGEST low_bound, high_bound; | |
265 | ||
266 | get_discrete_bounds (TYPE_FIELD_TYPE (type, 0), | |
267 | &low_bound, &high_bound); | |
268 | fetchlimit = high_bound - low_bound + 1; | |
269 | } | |
270 | else | |
271 | fetchlimit = UINT_MAX; | |
272 | } | |
273 | else if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
274 | fetchlimit = UINT_MAX; | |
275 | else | |
276 | /* We work only with arrays and pointers. */ | |
277 | goto error; | |
278 | ||
96c07c5b | 279 | if (! c_textual_element_type (element_type, 0)) |
ae6a3a4c | 280 | goto error; |
df54f8eb | 281 | classify_type (element_type, get_type_arch (element_type), charset); |
ae6a3a4c TJB |
282 | width = TYPE_LENGTH (element_type); |
283 | ||
aff410f1 MS |
284 | /* If the string lives in GDB's memory instead of the inferior's, |
285 | then we just need to copy it to BUFFER. Also, since such strings | |
286 | are arrays with known size, FETCHLIMIT will hold the size of the | |
287 | array. */ | |
ae6a3a4c TJB |
288 | if ((VALUE_LVAL (value) == not_lval |
289 | || VALUE_LVAL (value) == lval_internalvar) | |
290 | && fetchlimit != UINT_MAX) | |
291 | { | |
292 | int i; | |
293 | const gdb_byte *contents = value_contents (value); | |
294 | ||
fbb8f299 PM |
295 | /* If a length is specified, use that. */ |
296 | if (*length >= 0) | |
297 | i = *length; | |
298 | else | |
299 | /* Otherwise, look for a null character. */ | |
300 | for (i = 0; i < fetchlimit; i++) | |
aff410f1 MS |
301 | if (extract_unsigned_integer (contents + i * width, |
302 | width, byte_order) == 0) | |
fbb8f299 PM |
303 | break; |
304 | ||
305 | /* I is now either a user-defined length, the number of non-null | |
306 | characters, or FETCHLIMIT. */ | |
ae6a3a4c TJB |
307 | *length = i * width; |
308 | *buffer = xmalloc (*length); | |
309 | memcpy (*buffer, contents, *length); | |
310 | err = 0; | |
311 | } | |
312 | else | |
313 | { | |
621c8364 TT |
314 | CORE_ADDR addr = value_as_address (value); |
315 | ||
0987cf35 DE |
316 | /* Prior to the fix for PR 16196 read_string would ignore fetchlimit |
317 | if length > 0. The old "broken" behaviour is the behaviour we want: | |
318 | The caller may want to fetch 100 bytes from a variable length array | |
319 | implemented using the common idiom of having an array of length 1 at | |
320 | the end of a struct. In this case we want to ignore the declared | |
321 | size of the array. However, it's counterintuitive to implement that | |
322 | behaviour in read_string: what does fetchlimit otherwise mean if | |
323 | length > 0. Therefore we implement the behaviour we want here: | |
324 | If *length > 0, don't specify a fetchlimit. This preserves the | |
325 | previous behaviour. We could move this check above where we know | |
326 | whether the array is declared with a fixed size, but we only want | |
327 | to apply this behaviour when calling read_string. PR 16286. */ | |
328 | if (*length > 0) | |
329 | fetchlimit = UINT_MAX; | |
330 | ||
621c8364 TT |
331 | err = read_string (addr, *length, width, fetchlimit, |
332 | byte_order, buffer, length); | |
ae6a3a4c TJB |
333 | if (err) |
334 | { | |
8ea5dfdf | 335 | xfree (*buffer); |
578d3588 | 336 | memory_error (err, addr); |
ae6a3a4c TJB |
337 | } |
338 | } | |
339 | ||
fbb8f299 PM |
340 | /* If the LENGTH is specified at -1, we want to return the string |
341 | length up to the terminating null character. If an actual length | |
342 | was specified, we want to return the length of exactly what was | |
343 | read. */ | |
344 | if (req_length == -1) | |
345 | /* If the last character is null, subtract it from LENGTH. */ | |
346 | if (*length > 0 | |
aff410f1 MS |
347 | && extract_unsigned_integer (*buffer + *length - width, |
348 | width, byte_order) == 0) | |
fbb8f299 PM |
349 | *length -= width; |
350 | ||
351 | /* The read_string function will return the number of bytes read. | |
352 | If length returned from read_string was > 0, return the number of | |
353 | characters read by dividing the number of bytes by width. */ | |
354 | if (*length != 0) | |
355 | *length = *length / width; | |
ae6a3a4c | 356 | |
96c07c5b | 357 | *char_type = element_type; |
ae6a3a4c TJB |
358 | |
359 | return; | |
360 | ||
361 | error: | |
362 | { | |
363 | char *type_str; | |
364 | ||
365 | type_str = type_to_string (type); | |
366 | if (type_str) | |
367 | { | |
368 | make_cleanup (xfree, type_str); | |
369 | error (_("Trying to read string with inappropriate type `%s'."), | |
370 | type_str); | |
371 | } | |
372 | else | |
373 | error (_("Trying to read string with inappropriate type.")); | |
374 | } | |
375 | } | |
376 | ||
c906108c | 377 | \f |
6c7a06a3 TT |
378 | /* Evaluating C and C++ expressions. */ |
379 | ||
380 | /* Convert a UCN. The digits of the UCN start at P and extend no | |
381 | farther than LIMIT. DEST_CHARSET is the name of the character set | |
382 | into which the UCN should be converted. The results are written to | |
383 | OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8. | |
384 | Returns a pointer to just after the final digit of the UCN. */ | |
385 | ||
386 | static char * | |
387 | convert_ucn (char *p, char *limit, const char *dest_charset, | |
388 | struct obstack *output, int length) | |
389 | { | |
390 | unsigned long result = 0; | |
391 | gdb_byte data[4]; | |
392 | int i; | |
393 | ||
394 | for (i = 0; i < length && p < limit && isxdigit (*p); ++i, ++p) | |
395 | result = (result << 4) + host_hex_value (*p); | |
396 | ||
397 | for (i = 3; i >= 0; --i) | |
398 | { | |
399 | data[i] = result & 0xff; | |
400 | result >>= 8; | |
401 | } | |
402 | ||
aff410f1 MS |
403 | convert_between_encodings ("UTF-32BE", dest_charset, data, |
404 | 4, 4, output, translit_none); | |
6c7a06a3 TT |
405 | |
406 | return p; | |
407 | } | |
408 | ||
409 | /* Emit a character, VALUE, which was specified numerically, to | |
410 | OUTPUT. TYPE is the target character type. */ | |
411 | ||
412 | static void | |
413 | emit_numeric_character (struct type *type, unsigned long value, | |
414 | struct obstack *output) | |
415 | { | |
416 | gdb_byte *buffer; | |
417 | ||
418 | buffer = alloca (TYPE_LENGTH (type)); | |
419 | pack_long (buffer, type, value); | |
420 | obstack_grow (output, buffer, TYPE_LENGTH (type)); | |
421 | } | |
422 | ||
423 | /* Convert an octal escape sequence. TYPE is the target character | |
424 | type. The digits of the escape sequence begin at P and extend no | |
425 | farther than LIMIT. The result is written to OUTPUT. Returns a | |
426 | pointer to just after the final digit of the escape sequence. */ | |
427 | ||
428 | static char * | |
aff410f1 MS |
429 | convert_octal (struct type *type, char *p, |
430 | char *limit, struct obstack *output) | |
6c7a06a3 | 431 | { |
30b66ecc | 432 | int i; |
6c7a06a3 TT |
433 | unsigned long value = 0; |
434 | ||
30b66ecc TT |
435 | for (i = 0; |
436 | i < 3 && p < limit && isdigit (*p) && *p != '8' && *p != '9'; | |
437 | ++i) | |
6c7a06a3 TT |
438 | { |
439 | value = 8 * value + host_hex_value (*p); | |
440 | ++p; | |
441 | } | |
442 | ||
443 | emit_numeric_character (type, value, output); | |
444 | ||
445 | return p; | |
446 | } | |
447 | ||
448 | /* Convert a hex escape sequence. TYPE is the target character type. | |
449 | The digits of the escape sequence begin at P and extend no farther | |
450 | than LIMIT. The result is written to OUTPUT. Returns a pointer to | |
451 | just after the final digit of the escape sequence. */ | |
452 | ||
453 | static char * | |
aff410f1 MS |
454 | convert_hex (struct type *type, char *p, |
455 | char *limit, struct obstack *output) | |
6c7a06a3 TT |
456 | { |
457 | unsigned long value = 0; | |
458 | ||
459 | while (p < limit && isxdigit (*p)) | |
460 | { | |
461 | value = 16 * value + host_hex_value (*p); | |
462 | ++p; | |
463 | } | |
464 | ||
465 | emit_numeric_character (type, value, output); | |
466 | ||
467 | return p; | |
468 | } | |
469 | ||
470 | #define ADVANCE \ | |
471 | do { \ | |
472 | ++p; \ | |
473 | if (p == limit) \ | |
474 | error (_("Malformed escape sequence")); \ | |
475 | } while (0) | |
476 | ||
477 | /* Convert an escape sequence to a target format. TYPE is the target | |
478 | character type to use, and DEST_CHARSET is the name of the target | |
479 | character set. The backslash of the escape sequence is at *P, and | |
480 | the escape sequence will not extend past LIMIT. The results are | |
481 | written to OUTPUT. Returns a pointer to just past the final | |
482 | character of the escape sequence. */ | |
483 | ||
484 | static char * | |
485 | convert_escape (struct type *type, const char *dest_charset, | |
486 | char *p, char *limit, struct obstack *output) | |
487 | { | |
488 | /* Skip the backslash. */ | |
489 | ADVANCE; | |
490 | ||
491 | switch (*p) | |
492 | { | |
493 | case '\\': | |
494 | obstack_1grow (output, '\\'); | |
495 | ++p; | |
496 | break; | |
497 | ||
498 | case 'x': | |
499 | ADVANCE; | |
500 | if (!isxdigit (*p)) | |
501 | error (_("\\x used with no following hex digits.")); | |
502 | p = convert_hex (type, p, limit, output); | |
503 | break; | |
504 | ||
505 | case '0': | |
506 | case '1': | |
507 | case '2': | |
508 | case '3': | |
509 | case '4': | |
510 | case '5': | |
511 | case '6': | |
512 | case '7': | |
513 | p = convert_octal (type, p, limit, output); | |
514 | break; | |
515 | ||
516 | case 'u': | |
517 | case 'U': | |
518 | { | |
519 | int length = *p == 'u' ? 4 : 8; | |
c5504eaf | 520 | |
6c7a06a3 TT |
521 | ADVANCE; |
522 | if (!isxdigit (*p)) | |
523 | error (_("\\u used with no following hex digits")); | |
524 | p = convert_ucn (p, limit, dest_charset, output, length); | |
525 | } | |
526 | } | |
527 | ||
528 | return p; | |
529 | } | |
530 | ||
531 | /* Given a single string from a (C-specific) OP_STRING list, convert | |
532 | it to a target string, handling escape sequences specially. The | |
533 | output is written to OUTPUT. DATA is the input string, which has | |
534 | length LEN. DEST_CHARSET is the name of the target character set, | |
535 | and TYPE is the type of target character to use. */ | |
536 | ||
537 | static void | |
538 | parse_one_string (struct obstack *output, char *data, int len, | |
539 | const char *dest_charset, struct type *type) | |
540 | { | |
541 | char *limit; | |
542 | ||
543 | limit = data + len; | |
544 | ||
545 | while (data < limit) | |
546 | { | |
547 | char *p = data; | |
c5504eaf | 548 | |
6c7a06a3 TT |
549 | /* Look for next escape, or the end of the input. */ |
550 | while (p < limit && *p != '\\') | |
551 | ++p; | |
552 | /* If we saw a run of characters, convert them all. */ | |
553 | if (p > data) | |
554 | convert_between_encodings (host_charset (), dest_charset, | |
ac91cd70 | 555 | (gdb_byte *) data, p - data, 1, |
aff410f1 | 556 | output, translit_none); |
6c7a06a3 TT |
557 | /* If we saw an escape, convert it. */ |
558 | if (p < limit) | |
559 | p = convert_escape (type, dest_charset, p, limit, output); | |
560 | data = p; | |
561 | } | |
562 | } | |
563 | ||
564 | /* Expression evaluator for the C language family. Most operations | |
565 | are delegated to evaluate_subexp_standard; see that function for a | |
566 | description of the arguments. */ | |
567 | ||
f4b8a18d | 568 | struct value * |
6c7a06a3 TT |
569 | evaluate_subexp_c (struct type *expect_type, struct expression *exp, |
570 | int *pos, enum noside noside) | |
571 | { | |
572 | enum exp_opcode op = exp->elts[*pos].opcode; | |
573 | ||
574 | switch (op) | |
575 | { | |
576 | case OP_STRING: | |
577 | { | |
578 | int oplen, limit; | |
579 | struct type *type; | |
580 | struct obstack output; | |
581 | struct cleanup *cleanup; | |
582 | struct value *result; | |
583 | enum c_string_type dest_type; | |
584 | const char *dest_charset; | |
c50491a7 | 585 | int satisfy_expected = 0; |
6c7a06a3 TT |
586 | |
587 | obstack_init (&output); | |
588 | cleanup = make_cleanup_obstack_free (&output); | |
589 | ||
590 | ++*pos; | |
591 | oplen = longest_to_int (exp->elts[*pos].longconst); | |
592 | ||
593 | ++*pos; | |
594 | limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1); | |
595 | dest_type | |
596 | = (enum c_string_type) longest_to_int (exp->elts[*pos].longconst); | |
597 | switch (dest_type & ~C_CHAR) | |
598 | { | |
599 | case C_STRING: | |
d80b854b UW |
600 | type = language_string_char_type (exp->language_defn, |
601 | exp->gdbarch); | |
6c7a06a3 TT |
602 | break; |
603 | case C_WIDE_STRING: | |
e6c014f2 UW |
604 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
605 | "wchar_t", NULL, 0); | |
6c7a06a3 TT |
606 | break; |
607 | case C_STRING_16: | |
e6c014f2 UW |
608 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
609 | "char16_t", NULL, 0); | |
6c7a06a3 TT |
610 | break; |
611 | case C_STRING_32: | |
e6c014f2 UW |
612 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
613 | "char32_t", NULL, 0); | |
6c7a06a3 TT |
614 | break; |
615 | default: | |
9b20d036 | 616 | internal_error (__FILE__, __LINE__, _("unhandled c_string_type")); |
6c7a06a3 | 617 | } |
546e879e TT |
618 | |
619 | /* Ensure TYPE_LENGTH is valid for TYPE. */ | |
620 | check_typedef (type); | |
621 | ||
c50491a7 TT |
622 | /* If the caller expects an array of some integral type, |
623 | satisfy them. If something odder is expected, rely on the | |
624 | caller to cast. */ | |
625 | if (expect_type && TYPE_CODE (expect_type) == TYPE_CODE_ARRAY) | |
626 | { | |
627 | struct type *element_type | |
628 | = check_typedef (TYPE_TARGET_TYPE (expect_type)); | |
629 | ||
630 | if (TYPE_CODE (element_type) == TYPE_CODE_INT | |
631 | || TYPE_CODE (element_type) == TYPE_CODE_CHAR) | |
632 | { | |
633 | type = element_type; | |
634 | satisfy_expected = 1; | |
635 | } | |
636 | } | |
637 | ||
f870a310 | 638 | dest_charset = charset_for_string_type (dest_type, exp->gdbarch); |
6c7a06a3 TT |
639 | |
640 | ++*pos; | |
641 | while (*pos < limit) | |
642 | { | |
643 | int len; | |
644 | ||
645 | len = longest_to_int (exp->elts[*pos].longconst); | |
646 | ||
647 | ++*pos; | |
648 | if (noside != EVAL_SKIP) | |
649 | parse_one_string (&output, &exp->elts[*pos].string, len, | |
650 | dest_charset, type); | |
651 | *pos += BYTES_TO_EXP_ELEM (len); | |
652 | } | |
653 | ||
654 | /* Skip the trailing length and opcode. */ | |
655 | *pos += 2; | |
656 | ||
657 | if (noside == EVAL_SKIP) | |
334cc82d TT |
658 | { |
659 | /* Return a dummy value of the appropriate type. */ | |
c50491a7 TT |
660 | if (expect_type != NULL) |
661 | result = allocate_value (expect_type); | |
662 | else if ((dest_type & C_CHAR) != 0) | |
334cc82d TT |
663 | result = allocate_value (type); |
664 | else | |
3b7538c0 | 665 | result = value_cstring ("", 0, type); |
334cc82d TT |
666 | do_cleanups (cleanup); |
667 | return result; | |
668 | } | |
6c7a06a3 TT |
669 | |
670 | if ((dest_type & C_CHAR) != 0) | |
671 | { | |
672 | LONGEST value; | |
673 | ||
674 | if (obstack_object_size (&output) != TYPE_LENGTH (type)) | |
3e43a32a MS |
675 | error (_("Could not convert character " |
676 | "constant to target character set")); | |
51a5cd90 | 677 | value = unpack_long (type, (gdb_byte *) obstack_base (&output)); |
6c7a06a3 TT |
678 | result = value_from_longest (type, value); |
679 | } | |
680 | else | |
681 | { | |
682 | int i; | |
c5504eaf | 683 | |
6c7a06a3 TT |
684 | /* Write the terminating character. */ |
685 | for (i = 0; i < TYPE_LENGTH (type); ++i) | |
686 | obstack_1grow (&output, 0); | |
c50491a7 TT |
687 | |
688 | if (satisfy_expected) | |
689 | { | |
690 | LONGEST low_bound, high_bound; | |
691 | int element_size = TYPE_LENGTH (type); | |
692 | ||
693 | if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type), | |
694 | &low_bound, &high_bound) < 0) | |
695 | { | |
696 | low_bound = 0; | |
697 | high_bound = (TYPE_LENGTH (expect_type) / element_size) - 1; | |
698 | } | |
699 | if (obstack_object_size (&output) / element_size | |
700 | > (high_bound - low_bound + 1)) | |
701 | error (_("Too many array elements")); | |
702 | ||
703 | result = allocate_value (expect_type); | |
704 | memcpy (value_contents_raw (result), obstack_base (&output), | |
705 | obstack_object_size (&output)); | |
706 | } | |
707 | else | |
708 | result = value_cstring (obstack_base (&output), | |
709 | obstack_object_size (&output), | |
710 | type); | |
6c7a06a3 TT |
711 | } |
712 | do_cleanups (cleanup); | |
713 | return result; | |
714 | } | |
715 | break; | |
716 | ||
717 | default: | |
718 | break; | |
719 | } | |
720 | return evaluate_subexp_standard (expect_type, exp, pos, noside); | |
721 | } | |
c5aa993b | 722 | |
84f0252a | 723 | |
84f0252a | 724 | \f |
c906108c SS |
725 | /* Table mapping opcodes into strings for printing operators |
726 | and precedences of the operators. */ | |
727 | ||
728 | const struct op_print c_op_print_tab[] = | |
c5aa993b JM |
729 | { |
730 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
731 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
732 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
733 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
734 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
735 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
736 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
737 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
738 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
739 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
740 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
741 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
742 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
743 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
744 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
745 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
746 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
747 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
748 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
749 | {"%", BINOP_REM, PREC_MUL, 0}, | |
750 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
a016fc87 | 751 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, |
c5aa993b JM |
752 | {"-", UNOP_NEG, PREC_PREFIX, 0}, |
753 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
754 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
755 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
756 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
757 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
758 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, | |
759 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
c5aa993b | 760 | {NULL, 0, 0, 0} |
c906108c SS |
761 | }; |
762 | \f | |
685419e2 AC |
763 | enum c_primitive_types { |
764 | c_primitive_type_int, | |
765 | c_primitive_type_long, | |
766 | c_primitive_type_short, | |
767 | c_primitive_type_char, | |
768 | c_primitive_type_float, | |
769 | c_primitive_type_double, | |
770 | c_primitive_type_void, | |
771 | c_primitive_type_long_long, | |
772 | c_primitive_type_signed_char, | |
773 | c_primitive_type_unsigned_char, | |
774 | c_primitive_type_unsigned_short, | |
775 | c_primitive_type_unsigned_int, | |
776 | c_primitive_type_unsigned_long, | |
777 | c_primitive_type_unsigned_long_long, | |
778 | c_primitive_type_long_double, | |
779 | c_primitive_type_complex, | |
780 | c_primitive_type_double_complex, | |
213e4dc2 TJB |
781 | c_primitive_type_decfloat, |
782 | c_primitive_type_decdouble, | |
783 | c_primitive_type_declong, | |
685419e2 AC |
784 | nr_c_primitive_types |
785 | }; | |
786 | ||
e9667a65 | 787 | void |
685419e2 AC |
788 | c_language_arch_info (struct gdbarch *gdbarch, |
789 | struct language_arch_info *lai) | |
790 | { | |
791 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
c5504eaf | 792 | |
e9667a65 | 793 | lai->string_char_type = builtin->builtin_char; |
685419e2 AC |
794 | lai->primitive_type_vector |
795 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_c_primitive_types + 1, | |
796 | struct type *); | |
797 | lai->primitive_type_vector [c_primitive_type_int] = builtin->builtin_int; | |
798 | lai->primitive_type_vector [c_primitive_type_long] = builtin->builtin_long; | |
799 | lai->primitive_type_vector [c_primitive_type_short] = builtin->builtin_short; | |
800 | lai->primitive_type_vector [c_primitive_type_char] = builtin->builtin_char; | |
801 | lai->primitive_type_vector [c_primitive_type_float] = builtin->builtin_float; | |
802 | lai->primitive_type_vector [c_primitive_type_double] = builtin->builtin_double; | |
803 | lai->primitive_type_vector [c_primitive_type_void] = builtin->builtin_void; | |
804 | lai->primitive_type_vector [c_primitive_type_long_long] = builtin->builtin_long_long; | |
805 | lai->primitive_type_vector [c_primitive_type_signed_char] = builtin->builtin_signed_char; | |
806 | lai->primitive_type_vector [c_primitive_type_unsigned_char] = builtin->builtin_unsigned_char; | |
807 | lai->primitive_type_vector [c_primitive_type_unsigned_short] = builtin->builtin_unsigned_short; | |
808 | lai->primitive_type_vector [c_primitive_type_unsigned_int] = builtin->builtin_unsigned_int; | |
809 | lai->primitive_type_vector [c_primitive_type_unsigned_long] = builtin->builtin_unsigned_long; | |
810 | lai->primitive_type_vector [c_primitive_type_unsigned_long_long] = builtin->builtin_unsigned_long_long; | |
811 | lai->primitive_type_vector [c_primitive_type_long_double] = builtin->builtin_long_double; | |
812 | lai->primitive_type_vector [c_primitive_type_complex] = builtin->builtin_complex; | |
813 | lai->primitive_type_vector [c_primitive_type_double_complex] = builtin->builtin_double_complex; | |
213e4dc2 TJB |
814 | lai->primitive_type_vector [c_primitive_type_decfloat] = builtin->builtin_decfloat; |
815 | lai->primitive_type_vector [c_primitive_type_decdouble] = builtin->builtin_decdouble; | |
816 | lai->primitive_type_vector [c_primitive_type_declong] = builtin->builtin_declong; | |
fbb06eb1 UW |
817 | |
818 | lai->bool_type_default = builtin->builtin_int; | |
cad351d1 | 819 | } |
685419e2 | 820 | |
6aecb9c2 | 821 | const struct exp_descriptor exp_descriptor_c = |
6c7a06a3 TT |
822 | { |
823 | print_subexp_standard, | |
824 | operator_length_standard, | |
c0201579 | 825 | operator_check_standard, |
6c7a06a3 TT |
826 | op_name_standard, |
827 | dump_subexp_body_standard, | |
828 | evaluate_subexp_c | |
829 | }; | |
830 | ||
c5aa993b JM |
831 | const struct language_defn c_language_defn = |
832 | { | |
c906108c | 833 | "c", /* Language name */ |
6abde28f | 834 | "C", |
c906108c | 835 | language_c, |
c906108c | 836 | range_check_off, |
63872f9d | 837 | case_sensitive_on, |
7ca2d3a3 | 838 | array_row_major, |
9a044a89 | 839 | macro_expansion_c, |
6c7a06a3 | 840 | &exp_descriptor_c, |
7c8adf68 | 841 | c_parse, |
c906108c | 842 | c_error, |
e85c3284 | 843 | null_post_parser, |
c906108c SS |
844 | c_printchar, /* Print a character constant */ |
845 | c_printstr, /* Function to print string constant */ | |
846 | c_emit_char, /* Print a single char */ | |
c906108c | 847 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 848 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
849 | c_val_print, /* Print a value using appropriate syntax */ |
850 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 851 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 852 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 853 | NULL, /* name_of_this */ |
5f9a71c3 | 854 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 855 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 856 | NULL, /* Language specific symbol demangler */ |
aff410f1 MS |
857 | NULL, /* Language specific |
858 | class_name_from_physname */ | |
c906108c SS |
859 | c_op_print_tab, /* expression operators for printing */ |
860 | 1, /* c-style arrays */ | |
861 | 0, /* String lower bound */ | |
6084f43a | 862 | default_word_break_characters, |
41d27058 | 863 | default_make_symbol_completion_list, |
685419e2 | 864 | c_language_arch_info, |
e79af960 | 865 | default_print_array_index, |
41f1b697 | 866 | default_pass_by_reference, |
ae6a3a4c | 867 | c_get_string, |
1a119f36 | 868 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 869 | iterate_over_symbols, |
a53b64ea | 870 | &c_varobj_ops, |
c906108c SS |
871 | LANG_MAGIC |
872 | }; | |
873 | ||
cad351d1 UW |
874 | enum cplus_primitive_types { |
875 | cplus_primitive_type_int, | |
876 | cplus_primitive_type_long, | |
877 | cplus_primitive_type_short, | |
878 | cplus_primitive_type_char, | |
879 | cplus_primitive_type_float, | |
880 | cplus_primitive_type_double, | |
881 | cplus_primitive_type_void, | |
882 | cplus_primitive_type_long_long, | |
883 | cplus_primitive_type_signed_char, | |
884 | cplus_primitive_type_unsigned_char, | |
885 | cplus_primitive_type_unsigned_short, | |
886 | cplus_primitive_type_unsigned_int, | |
887 | cplus_primitive_type_unsigned_long, | |
888 | cplus_primitive_type_unsigned_long_long, | |
889 | cplus_primitive_type_long_double, | |
890 | cplus_primitive_type_complex, | |
891 | cplus_primitive_type_double_complex, | |
892 | cplus_primitive_type_bool, | |
213e4dc2 TJB |
893 | cplus_primitive_type_decfloat, |
894 | cplus_primitive_type_decdouble, | |
895 | cplus_primitive_type_declong, | |
cad351d1 | 896 | nr_cplus_primitive_types |
c906108c SS |
897 | }; |
898 | ||
cad351d1 UW |
899 | static void |
900 | cplus_language_arch_info (struct gdbarch *gdbarch, | |
901 | struct language_arch_info *lai) | |
902 | { | |
903 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
c5504eaf | 904 | |
cad351d1 UW |
905 | lai->string_char_type = builtin->builtin_char; |
906 | lai->primitive_type_vector | |
907 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1, | |
908 | struct type *); | |
909 | lai->primitive_type_vector [cplus_primitive_type_int] | |
910 | = builtin->builtin_int; | |
911 | lai->primitive_type_vector [cplus_primitive_type_long] | |
912 | = builtin->builtin_long; | |
913 | lai->primitive_type_vector [cplus_primitive_type_short] | |
914 | = builtin->builtin_short; | |
915 | lai->primitive_type_vector [cplus_primitive_type_char] | |
916 | = builtin->builtin_char; | |
917 | lai->primitive_type_vector [cplus_primitive_type_float] | |
918 | = builtin->builtin_float; | |
919 | lai->primitive_type_vector [cplus_primitive_type_double] | |
920 | = builtin->builtin_double; | |
921 | lai->primitive_type_vector [cplus_primitive_type_void] | |
922 | = builtin->builtin_void; | |
923 | lai->primitive_type_vector [cplus_primitive_type_long_long] | |
924 | = builtin->builtin_long_long; | |
925 | lai->primitive_type_vector [cplus_primitive_type_signed_char] | |
926 | = builtin->builtin_signed_char; | |
927 | lai->primitive_type_vector [cplus_primitive_type_unsigned_char] | |
928 | = builtin->builtin_unsigned_char; | |
929 | lai->primitive_type_vector [cplus_primitive_type_unsigned_short] | |
930 | = builtin->builtin_unsigned_short; | |
931 | lai->primitive_type_vector [cplus_primitive_type_unsigned_int] | |
932 | = builtin->builtin_unsigned_int; | |
933 | lai->primitive_type_vector [cplus_primitive_type_unsigned_long] | |
934 | = builtin->builtin_unsigned_long; | |
935 | lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long] | |
936 | = builtin->builtin_unsigned_long_long; | |
937 | lai->primitive_type_vector [cplus_primitive_type_long_double] | |
938 | = builtin->builtin_long_double; | |
939 | lai->primitive_type_vector [cplus_primitive_type_complex] | |
940 | = builtin->builtin_complex; | |
941 | lai->primitive_type_vector [cplus_primitive_type_double_complex] | |
942 | = builtin->builtin_double_complex; | |
943 | lai->primitive_type_vector [cplus_primitive_type_bool] | |
944 | = builtin->builtin_bool; | |
213e4dc2 TJB |
945 | lai->primitive_type_vector [cplus_primitive_type_decfloat] |
946 | = builtin->builtin_decfloat; | |
947 | lai->primitive_type_vector [cplus_primitive_type_decdouble] | |
948 | = builtin->builtin_decdouble; | |
949 | lai->primitive_type_vector [cplus_primitive_type_declong] | |
950 | = builtin->builtin_declong; | |
fbb06eb1 UW |
951 | |
952 | lai->bool_type_symbol = "bool"; | |
953 | lai->bool_type_default = builtin->builtin_bool; | |
cad351d1 UW |
954 | } |
955 | ||
c5aa993b JM |
956 | const struct language_defn cplus_language_defn = |
957 | { | |
958 | "c++", /* Language name */ | |
6abde28f | 959 | "C++", |
c906108c | 960 | language_cplus, |
c906108c | 961 | range_check_off, |
63872f9d | 962 | case_sensitive_on, |
7ca2d3a3 | 963 | array_row_major, |
9a044a89 | 964 | macro_expansion_c, |
6c7a06a3 | 965 | &exp_descriptor_c, |
7c8adf68 | 966 | c_parse, |
c906108c | 967 | c_error, |
e85c3284 | 968 | null_post_parser, |
c906108c SS |
969 | c_printchar, /* Print a character constant */ |
970 | c_printstr, /* Function to print string constant */ | |
971 | c_emit_char, /* Print a single char */ | |
c906108c | 972 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 973 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
974 | c_val_print, /* Print a value using appropriate syntax */ |
975 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 976 | default_read_var_value, /* la_read_var_value */ |
b18be20d | 977 | cplus_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 978 | "this", /* name_of_this */ |
1fcb5155 | 979 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 980 | cp_lookup_transparent_type, /* lookup_transparent_type */ |
8de20a37 | 981 | gdb_demangle, /* Language specific symbol demangler */ |
aff410f1 MS |
982 | cp_class_name_from_physname, /* Language specific |
983 | class_name_from_physname */ | |
c906108c SS |
984 | c_op_print_tab, /* expression operators for printing */ |
985 | 1, /* c-style arrays */ | |
986 | 0, /* String lower bound */ | |
6084f43a | 987 | default_word_break_characters, |
41d27058 | 988 | default_make_symbol_completion_list, |
cad351d1 | 989 | cplus_language_arch_info, |
e79af960 | 990 | default_print_array_index, |
41f1b697 | 991 | cp_pass_by_reference, |
ae6a3a4c | 992 | c_get_string, |
1a119f36 | 993 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 994 | iterate_over_symbols, |
a53b64ea | 995 | &cplus_varobj_ops, |
c906108c SS |
996 | LANG_MAGIC |
997 | }; | |
998 | ||
c5aa993b JM |
999 | const struct language_defn asm_language_defn = |
1000 | { | |
c906108c | 1001 | "asm", /* Language name */ |
6abde28f | 1002 | "assembly", |
c906108c | 1003 | language_asm, |
c906108c | 1004 | range_check_off, |
63872f9d | 1005 | case_sensitive_on, |
7ca2d3a3 | 1006 | array_row_major, |
9a044a89 | 1007 | macro_expansion_c, |
6c7a06a3 | 1008 | &exp_descriptor_c, |
7c8adf68 | 1009 | c_parse, |
c906108c | 1010 | c_error, |
e85c3284 | 1011 | null_post_parser, |
c906108c SS |
1012 | c_printchar, /* Print a character constant */ |
1013 | c_printstr, /* Function to print string constant */ | |
1014 | c_emit_char, /* Print a single char */ | |
c906108c | 1015 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1016 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1017 | c_val_print, /* Print a value using appropriate syntax */ |
1018 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 1019 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 1020 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 1021 | NULL, /* name_of_this */ |
5f9a71c3 | 1022 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1023 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1024 | NULL, /* Language specific symbol demangler */ |
aff410f1 MS |
1025 | NULL, /* Language specific |
1026 | class_name_from_physname */ | |
c906108c SS |
1027 | c_op_print_tab, /* expression operators for printing */ |
1028 | 1, /* c-style arrays */ | |
1029 | 0, /* String lower bound */ | |
6084f43a | 1030 | default_word_break_characters, |
41d27058 | 1031 | default_make_symbol_completion_list, |
aff410f1 | 1032 | c_language_arch_info, /* FIXME: la_language_arch_info. */ |
e79af960 | 1033 | default_print_array_index, |
41f1b697 | 1034 | default_pass_by_reference, |
ae6a3a4c | 1035 | c_get_string, |
1a119f36 | 1036 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 1037 | iterate_over_symbols, |
a53b64ea | 1038 | &default_varobj_ops, |
c906108c SS |
1039 | LANG_MAGIC |
1040 | }; | |
1041 | ||
20a0e81d JB |
1042 | /* The following language_defn does not represent a real language. |
1043 | It just provides a minimal support a-la-C that should allow users | |
1044 | to do some simple operations when debugging applications that use | |
1045 | a language currently not supported by GDB. */ | |
1046 | ||
1047 | const struct language_defn minimal_language_defn = | |
1048 | { | |
1049 | "minimal", /* Language name */ | |
6abde28f | 1050 | "Minimal", |
20a0e81d | 1051 | language_minimal, |
20a0e81d | 1052 | range_check_off, |
20a0e81d | 1053 | case_sensitive_on, |
7ca2d3a3 | 1054 | array_row_major, |
9a044a89 | 1055 | macro_expansion_c, |
6c7a06a3 | 1056 | &exp_descriptor_c, |
7c8adf68 | 1057 | c_parse, |
20a0e81d | 1058 | c_error, |
e85c3284 | 1059 | null_post_parser, |
20a0e81d JB |
1060 | c_printchar, /* Print a character constant */ |
1061 | c_printstr, /* Function to print string constant */ | |
1062 | c_emit_char, /* Print a single char */ | |
20a0e81d | 1063 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1064 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
20a0e81d JB |
1065 | c_val_print, /* Print a value using appropriate syntax */ |
1066 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 1067 | default_read_var_value, /* la_read_var_value */ |
20a0e81d | 1068 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 1069 | NULL, /* name_of_this */ |
5f9a71c3 | 1070 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1071 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
20a0e81d | 1072 | NULL, /* Language specific symbol demangler */ |
aff410f1 MS |
1073 | NULL, /* Language specific |
1074 | class_name_from_physname */ | |
20a0e81d JB |
1075 | c_op_print_tab, /* expression operators for printing */ |
1076 | 1, /* c-style arrays */ | |
1077 | 0, /* String lower bound */ | |
6084f43a | 1078 | default_word_break_characters, |
41d27058 | 1079 | default_make_symbol_completion_list, |
e9667a65 | 1080 | c_language_arch_info, |
e79af960 | 1081 | default_print_array_index, |
41f1b697 | 1082 | default_pass_by_reference, |
ae6a3a4c | 1083 | c_get_string, |
1a119f36 | 1084 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 1085 | iterate_over_symbols, |
a53b64ea | 1086 | &default_varobj_ops, |
20a0e81d JB |
1087 | LANG_MAGIC |
1088 | }; | |
1089 | ||
c906108c | 1090 | void |
fba45db2 | 1091 | _initialize_c_language (void) |
c906108c SS |
1092 | { |
1093 | add_language (&c_language_defn); | |
1094 | add_language (&cplus_language_defn); | |
1095 | add_language (&asm_language_defn); | |
20a0e81d | 1096 | add_language (&minimal_language_defn); |
c906108c | 1097 | } |