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