Commit | Line | Data |
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c906108c | 1 | /* C language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
e2882c85 | 3 | Copyright (C) 1992-2018 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" |
b1b60145 | 28 | #include "c-support.h" |
745b8ca0 | 29 | #include "valprint.h" |
84f0252a | 30 | #include "macroscope.h" |
234b45d4 | 31 | #include "charset.h" |
9a3d7dfd | 32 | #include "demangle.h" |
b18be20d | 33 | #include "cp-abi.h" |
1fcb5155 | 34 | #include "cp-support.h" |
6c7a06a3 TT |
35 | #include "gdb_obstack.h" |
36 | #include <ctype.h> | |
578d3588 | 37 | #include "gdbcore.h" |
c906108c | 38 | |
6c7a06a3 TT |
39 | /* Given a C string type, STR_TYPE, return the corresponding target |
40 | character set name. */ | |
41 | ||
42 | static const char * | |
0c801b96 | 43 | charset_for_string_type (c_string_type str_type, struct gdbarch *gdbarch) |
6c7a06a3 TT |
44 | { |
45 | switch (str_type & ~C_CHAR) | |
46 | { | |
47 | case C_STRING: | |
f870a310 | 48 | return target_charset (gdbarch); |
6c7a06a3 | 49 | case C_WIDE_STRING: |
f870a310 | 50 | return target_wide_charset (gdbarch); |
6c7a06a3 | 51 | case C_STRING_16: |
b8899f2b | 52 | /* FIXME: UTF-16 is not always correct. */ |
f870a310 | 53 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 54 | return "UTF-16BE"; |
6c7a06a3 | 55 | else |
b8899f2b | 56 | return "UTF-16LE"; |
6c7a06a3 | 57 | case C_STRING_32: |
b8899f2b | 58 | /* FIXME: UTF-32 is not always correct. */ |
f870a310 | 59 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 60 | return "UTF-32BE"; |
6c7a06a3 | 61 | else |
b8899f2b | 62 | return "UTF-32LE"; |
6c7a06a3 | 63 | } |
9b20d036 | 64 | internal_error (__FILE__, __LINE__, _("unhandled c_string_type")); |
6c7a06a3 TT |
65 | } |
66 | ||
67 | /* Classify ELTTYPE according to what kind of character it is. Return | |
68 | the enum constant representing the character type. Also set | |
69 | *ENCODING to the name of the character set to use when converting | |
aff410f1 MS |
70 | characters of this type in target BYTE_ORDER to the host character |
71 | set. */ | |
6c7a06a3 | 72 | |
0c801b96 | 73 | static c_string_type |
f870a310 | 74 | classify_type (struct type *elttype, struct gdbarch *gdbarch, |
e17a4113 | 75 | const char **encoding) |
6c7a06a3 | 76 | { |
0c801b96 | 77 | c_string_type result; |
6c7a06a3 | 78 | |
85e306ed TT |
79 | /* We loop because ELTTYPE may be a typedef, and we want to |
80 | successively peel each typedef until we reach a type we | |
81 | understand. We don't use CHECK_TYPEDEF because that will strip | |
82 | all typedefs at once -- but in C, wchar_t is itself a typedef, so | |
83 | that would do the wrong thing. */ | |
84 | while (elttype) | |
6c7a06a3 | 85 | { |
0d5cff50 | 86 | const char *name = TYPE_NAME (elttype); |
6c7a06a3 TT |
87 | |
88 | if (TYPE_CODE (elttype) == TYPE_CODE_CHAR || !name) | |
89 | { | |
90 | result = C_CHAR; | |
91 | goto done; | |
92 | } | |
93 | ||
94 | if (!strcmp (name, "wchar_t")) | |
95 | { | |
96 | result = C_WIDE_CHAR; | |
97 | goto done; | |
98 | } | |
99 | ||
100 | if (!strcmp (name, "char16_t")) | |
101 | { | |
102 | result = C_CHAR_16; | |
103 | goto done; | |
104 | } | |
105 | ||
106 | if (!strcmp (name, "char32_t")) | |
107 | { | |
108 | result = C_CHAR_32; | |
109 | goto done; | |
110 | } | |
111 | ||
85e306ed TT |
112 | if (TYPE_CODE (elttype) != TYPE_CODE_TYPEDEF) |
113 | break; | |
114 | ||
115 | /* Call for side effects. */ | |
116 | check_typedef (elttype); | |
117 | ||
118 | if (TYPE_TARGET_TYPE (elttype)) | |
119 | elttype = TYPE_TARGET_TYPE (elttype); | |
120 | else | |
121 | { | |
122 | /* Perhaps check_typedef did not update the target type. In | |
123 | this case, force the lookup again and hope it works out. | |
124 | It never will for C, but it might for C++. */ | |
f168693b | 125 | elttype = check_typedef (elttype); |
85e306ed | 126 | } |
6c7a06a3 | 127 | } |
6c7a06a3 TT |
128 | |
129 | /* Punt. */ | |
130 | result = C_CHAR; | |
131 | ||
132 | done: | |
e17a4113 | 133 | if (encoding) |
f870a310 | 134 | *encoding = charset_for_string_type (result, gdbarch); |
e17a4113 | 135 | |
6c7a06a3 TT |
136 | return result; |
137 | } | |
138 | ||
aff410f1 MS |
139 | /* Print the character C on STREAM as part of the contents of a |
140 | literal string whose delimiter is QUOTER. Note that that format | |
141 | for printing characters and strings is language specific. */ | |
c906108c | 142 | |
6aecb9c2 JB |
143 | void |
144 | c_emit_char (int c, struct type *type, | |
145 | struct ui_file *stream, int quoter) | |
c906108c | 146 | { |
6c7a06a3 | 147 | const char *encoding; |
234b45d4 | 148 | |
f870a310 | 149 | classify_type (type, get_type_arch (type), &encoding); |
3b2b8fea | 150 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
151 | } |
152 | ||
153 | void | |
6c7a06a3 | 154 | c_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c | 155 | { |
0c801b96 | 156 | c_string_type str_type; |
6c7a06a3 | 157 | |
f870a310 | 158 | str_type = classify_type (type, get_type_arch (type), NULL); |
6c7a06a3 TT |
159 | switch (str_type) |
160 | { | |
161 | case C_CHAR: | |
162 | break; | |
163 | case C_WIDE_CHAR: | |
164 | fputc_filtered ('L', stream); | |
165 | break; | |
166 | case C_CHAR_16: | |
167 | fputc_filtered ('u', stream); | |
168 | break; | |
169 | case C_CHAR_32: | |
170 | fputc_filtered ('U', stream); | |
171 | break; | |
172 | } | |
173 | ||
c906108c | 174 | fputc_filtered ('\'', stream); |
6c7a06a3 | 175 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
176 | fputc_filtered ('\'', stream); |
177 | } | |
178 | ||
aff410f1 MS |
179 | /* Print the character string STRING, printing at most LENGTH |
180 | characters. LENGTH is -1 if the string is nul terminated. Each | |
181 | character is WIDTH bytes long. Printing stops early if the number | |
182 | hits print_max; repeat counts are printed as appropriate. Print | |
183 | ellipses at the end if we had to stop before printing LENGTH | |
184 | characters, or if FORCE_ELLIPSES. */ | |
c906108c SS |
185 | |
186 | void | |
aff410f1 MS |
187 | c_printstr (struct ui_file *stream, struct type *type, |
188 | const gdb_byte *string, unsigned int length, | |
189 | const char *user_encoding, int force_ellipses, | |
79a45b7d | 190 | const struct value_print_options *options) |
c906108c | 191 | { |
0c801b96 | 192 | c_string_type str_type; |
3b2b8fea TT |
193 | const char *type_encoding; |
194 | const char *encoding; | |
195 | ||
f870a310 TT |
196 | str_type = (classify_type (type, get_type_arch (type), &type_encoding) |
197 | & ~C_CHAR); | |
6c7a06a3 TT |
198 | switch (str_type) |
199 | { | |
200 | case C_STRING: | |
201 | break; | |
202 | case C_WIDE_STRING: | |
203 | fputs_filtered ("L", stream); | |
204 | break; | |
205 | case C_STRING_16: | |
206 | fputs_filtered ("u", stream); | |
207 | break; | |
208 | case C_STRING_32: | |
209 | fputs_filtered ("U", stream); | |
210 | break; | |
211 | } | |
212 | ||
3b2b8fea | 213 | encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding; |
6c7a06a3 | 214 | |
3b2b8fea TT |
215 | generic_printstr (stream, type, string, length, encoding, force_ellipses, |
216 | '"', 1, options); | |
c906108c | 217 | } |
ae6a3a4c TJB |
218 | |
219 | /* Obtain a C string from the inferior storing it in a newly allocated | |
aff410f1 MS |
220 | buffer in BUFFER, which should be freed by the caller. If the in- |
221 | and out-parameter *LENGTH is specified at -1, the string is read | |
fbb8f299 | 222 | until a null character of the appropriate width is found, otherwise |
aff410f1 MS |
223 | the string is read to the length of characters specified. The size |
224 | of a character is determined by the length of the target type of | |
0987cf35 DE |
225 | the pointer or array. |
226 | ||
227 | If VALUE is an array with a known length, and *LENGTH is -1, | |
228 | the function will not read past the end of the array. However, any | |
229 | declared size of the array is ignored if *LENGTH > 0. | |
230 | ||
231 | On completion, *LENGTH will be set to the size of the string read in | |
fbb8f299 PM |
232 | characters. (If a length of -1 is specified, the length returned |
233 | will not include the null character). CHARSET is always set to the | |
234 | target charset. */ | |
ae6a3a4c TJB |
235 | |
236 | void | |
aff410f1 MS |
237 | c_get_string (struct value *value, gdb_byte **buffer, |
238 | int *length, struct type **char_type, | |
239 | const char **charset) | |
ae6a3a4c TJB |
240 | { |
241 | int err, width; | |
242 | unsigned int fetchlimit; | |
243 | struct type *type = check_typedef (value_type (value)); | |
244 | struct type *element_type = TYPE_TARGET_TYPE (type); | |
fbb8f299 | 245 | int req_length = *length; |
aff410f1 MS |
246 | enum bfd_endian byte_order |
247 | = gdbarch_byte_order (get_type_arch (type)); | |
ae6a3a4c TJB |
248 | |
249 | if (element_type == NULL) | |
250 | goto error; | |
251 | ||
252 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
253 | { | |
aff410f1 MS |
254 | /* If we know the size of the array, we can use it as a limit on |
255 | the number of characters to be fetched. */ | |
ae6a3a4c TJB |
256 | if (TYPE_NFIELDS (type) == 1 |
257 | && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE) | |
258 | { | |
259 | LONGEST low_bound, high_bound; | |
260 | ||
261 | get_discrete_bounds (TYPE_FIELD_TYPE (type, 0), | |
262 | &low_bound, &high_bound); | |
263 | fetchlimit = high_bound - low_bound + 1; | |
264 | } | |
265 | else | |
266 | fetchlimit = UINT_MAX; | |
267 | } | |
268 | else if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
269 | fetchlimit = UINT_MAX; | |
270 | else | |
271 | /* We work only with arrays and pointers. */ | |
272 | goto error; | |
273 | ||
96c07c5b | 274 | if (! c_textual_element_type (element_type, 0)) |
ae6a3a4c | 275 | goto error; |
df54f8eb | 276 | classify_type (element_type, get_type_arch (element_type), charset); |
ae6a3a4c TJB |
277 | width = TYPE_LENGTH (element_type); |
278 | ||
aff410f1 MS |
279 | /* If the string lives in GDB's memory instead of the inferior's, |
280 | then we just need to copy it to BUFFER. Also, since such strings | |
281 | are arrays with known size, FETCHLIMIT will hold the size of the | |
282 | array. */ | |
ae6a3a4c TJB |
283 | if ((VALUE_LVAL (value) == not_lval |
284 | || VALUE_LVAL (value) == lval_internalvar) | |
285 | && fetchlimit != UINT_MAX) | |
286 | { | |
287 | int i; | |
288 | const gdb_byte *contents = value_contents (value); | |
289 | ||
fbb8f299 PM |
290 | /* If a length is specified, use that. */ |
291 | if (*length >= 0) | |
292 | i = *length; | |
293 | else | |
294 | /* Otherwise, look for a null character. */ | |
295 | for (i = 0; i < fetchlimit; i++) | |
aff410f1 MS |
296 | if (extract_unsigned_integer (contents + i * width, |
297 | width, byte_order) == 0) | |
fbb8f299 PM |
298 | break; |
299 | ||
300 | /* I is now either a user-defined length, the number of non-null | |
301 | characters, or FETCHLIMIT. */ | |
ae6a3a4c | 302 | *length = i * width; |
224c3ddb | 303 | *buffer = (gdb_byte *) xmalloc (*length); |
ae6a3a4c TJB |
304 | memcpy (*buffer, contents, *length); |
305 | err = 0; | |
306 | } | |
307 | else | |
308 | { | |
621c8364 TT |
309 | CORE_ADDR addr = value_as_address (value); |
310 | ||
0987cf35 DE |
311 | /* Prior to the fix for PR 16196 read_string would ignore fetchlimit |
312 | if length > 0. The old "broken" behaviour is the behaviour we want: | |
313 | The caller may want to fetch 100 bytes from a variable length array | |
314 | implemented using the common idiom of having an array of length 1 at | |
315 | the end of a struct. In this case we want to ignore the declared | |
316 | size of the array. However, it's counterintuitive to implement that | |
317 | behaviour in read_string: what does fetchlimit otherwise mean if | |
318 | length > 0. Therefore we implement the behaviour we want here: | |
319 | If *length > 0, don't specify a fetchlimit. This preserves the | |
320 | previous behaviour. We could move this check above where we know | |
321 | whether the array is declared with a fixed size, but we only want | |
322 | to apply this behaviour when calling read_string. PR 16286. */ | |
323 | if (*length > 0) | |
324 | fetchlimit = UINT_MAX; | |
325 | ||
621c8364 TT |
326 | err = read_string (addr, *length, width, fetchlimit, |
327 | byte_order, buffer, length); | |
d09f2c3f | 328 | if (err != 0) |
ae6a3a4c | 329 | { |
8ea5dfdf | 330 | xfree (*buffer); |
d09f2c3f | 331 | memory_error (TARGET_XFER_E_IO, addr); |
ae6a3a4c TJB |
332 | } |
333 | } | |
334 | ||
fbb8f299 PM |
335 | /* If the LENGTH is specified at -1, we want to return the string |
336 | length up to the terminating null character. If an actual length | |
337 | was specified, we want to return the length of exactly what was | |
338 | read. */ | |
339 | if (req_length == -1) | |
340 | /* If the last character is null, subtract it from LENGTH. */ | |
341 | if (*length > 0 | |
aff410f1 MS |
342 | && extract_unsigned_integer (*buffer + *length - width, |
343 | width, byte_order) == 0) | |
fbb8f299 PM |
344 | *length -= width; |
345 | ||
346 | /* The read_string function will return the number of bytes read. | |
347 | If length returned from read_string was > 0, return the number of | |
348 | characters read by dividing the number of bytes by width. */ | |
349 | if (*length != 0) | |
350 | *length = *length / width; | |
ae6a3a4c | 351 | |
96c07c5b | 352 | *char_type = element_type; |
ae6a3a4c TJB |
353 | |
354 | return; | |
355 | ||
356 | error: | |
357 | { | |
2f408ecb PA |
358 | std::string type_str = type_to_string (type); |
359 | if (!type_str.empty ()) | |
ae6a3a4c | 360 | { |
ae6a3a4c | 361 | error (_("Trying to read string with inappropriate type `%s'."), |
2f408ecb | 362 | type_str.c_str ()); |
ae6a3a4c TJB |
363 | } |
364 | else | |
365 | error (_("Trying to read string with inappropriate type.")); | |
366 | } | |
367 | } | |
368 | ||
c906108c | 369 | \f |
6c7a06a3 TT |
370 | /* Evaluating C and C++ expressions. */ |
371 | ||
372 | /* Convert a UCN. The digits of the UCN start at P and extend no | |
373 | farther than LIMIT. DEST_CHARSET is the name of the character set | |
374 | into which the UCN should be converted. The results are written to | |
375 | OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8. | |
376 | Returns a pointer to just after the final digit of the UCN. */ | |
377 | ||
378 | static char * | |
379 | convert_ucn (char *p, char *limit, const char *dest_charset, | |
380 | struct obstack *output, int length) | |
381 | { | |
382 | unsigned long result = 0; | |
383 | gdb_byte data[4]; | |
384 | int i; | |
385 | ||
b1b60145 | 386 | for (i = 0; i < length && p < limit && ISXDIGIT (*p); ++i, ++p) |
6c7a06a3 TT |
387 | result = (result << 4) + host_hex_value (*p); |
388 | ||
389 | for (i = 3; i >= 0; --i) | |
390 | { | |
391 | data[i] = result & 0xff; | |
392 | result >>= 8; | |
393 | } | |
394 | ||
aff410f1 MS |
395 | convert_between_encodings ("UTF-32BE", dest_charset, data, |
396 | 4, 4, output, translit_none); | |
6c7a06a3 TT |
397 | |
398 | return p; | |
399 | } | |
400 | ||
401 | /* Emit a character, VALUE, which was specified numerically, to | |
402 | OUTPUT. TYPE is the target character type. */ | |
403 | ||
404 | static void | |
405 | emit_numeric_character (struct type *type, unsigned long value, | |
406 | struct obstack *output) | |
407 | { | |
408 | gdb_byte *buffer; | |
409 | ||
224c3ddb | 410 | buffer = (gdb_byte *) alloca (TYPE_LENGTH (type)); |
6c7a06a3 TT |
411 | pack_long (buffer, type, value); |
412 | obstack_grow (output, buffer, TYPE_LENGTH (type)); | |
413 | } | |
414 | ||
415 | /* Convert an octal escape sequence. TYPE is the target character | |
416 | type. The digits of the escape sequence begin at P and extend no | |
417 | farther than LIMIT. The result is written to OUTPUT. Returns a | |
418 | pointer to just after the final digit of the escape sequence. */ | |
419 | ||
420 | static char * | |
aff410f1 MS |
421 | convert_octal (struct type *type, char *p, |
422 | char *limit, struct obstack *output) | |
6c7a06a3 | 423 | { |
30b66ecc | 424 | int i; |
6c7a06a3 TT |
425 | unsigned long value = 0; |
426 | ||
30b66ecc | 427 | for (i = 0; |
b1b60145 | 428 | i < 3 && p < limit && ISDIGIT (*p) && *p != '8' && *p != '9'; |
30b66ecc | 429 | ++i) |
6c7a06a3 TT |
430 | { |
431 | value = 8 * value + host_hex_value (*p); | |
432 | ++p; | |
433 | } | |
434 | ||
435 | emit_numeric_character (type, value, output); | |
436 | ||
437 | return p; | |
438 | } | |
439 | ||
440 | /* Convert a hex escape sequence. TYPE is the target character type. | |
441 | The digits of the escape sequence begin at P and extend no farther | |
442 | than LIMIT. The result is written to OUTPUT. Returns a pointer to | |
443 | just after the final digit of the escape sequence. */ | |
444 | ||
445 | static char * | |
aff410f1 MS |
446 | convert_hex (struct type *type, char *p, |
447 | char *limit, struct obstack *output) | |
6c7a06a3 TT |
448 | { |
449 | unsigned long value = 0; | |
450 | ||
b1b60145 | 451 | while (p < limit && ISXDIGIT (*p)) |
6c7a06a3 TT |
452 | { |
453 | value = 16 * value + host_hex_value (*p); | |
454 | ++p; | |
455 | } | |
456 | ||
457 | emit_numeric_character (type, value, output); | |
458 | ||
459 | return p; | |
460 | } | |
461 | ||
462 | #define ADVANCE \ | |
463 | do { \ | |
464 | ++p; \ | |
465 | if (p == limit) \ | |
466 | error (_("Malformed escape sequence")); \ | |
467 | } while (0) | |
468 | ||
469 | /* Convert an escape sequence to a target format. TYPE is the target | |
470 | character type to use, and DEST_CHARSET is the name of the target | |
471 | character set. The backslash of the escape sequence is at *P, and | |
472 | the escape sequence will not extend past LIMIT. The results are | |
473 | written to OUTPUT. Returns a pointer to just past the final | |
474 | character of the escape sequence. */ | |
475 | ||
476 | static char * | |
477 | convert_escape (struct type *type, const char *dest_charset, | |
478 | char *p, char *limit, struct obstack *output) | |
479 | { | |
480 | /* Skip the backslash. */ | |
481 | ADVANCE; | |
482 | ||
483 | switch (*p) | |
484 | { | |
485 | case '\\': | |
486 | obstack_1grow (output, '\\'); | |
487 | ++p; | |
488 | break; | |
489 | ||
490 | case 'x': | |
491 | ADVANCE; | |
b1b60145 | 492 | if (!ISXDIGIT (*p)) |
6c7a06a3 TT |
493 | error (_("\\x used with no following hex digits.")); |
494 | p = convert_hex (type, p, limit, output); | |
495 | break; | |
496 | ||
497 | case '0': | |
498 | case '1': | |
499 | case '2': | |
500 | case '3': | |
501 | case '4': | |
502 | case '5': | |
503 | case '6': | |
504 | case '7': | |
505 | p = convert_octal (type, p, limit, output); | |
506 | break; | |
507 | ||
508 | case 'u': | |
509 | case 'U': | |
510 | { | |
511 | int length = *p == 'u' ? 4 : 8; | |
c5504eaf | 512 | |
6c7a06a3 | 513 | ADVANCE; |
b1b60145 | 514 | if (!ISXDIGIT (*p)) |
6c7a06a3 TT |
515 | error (_("\\u used with no following hex digits")); |
516 | p = convert_ucn (p, limit, dest_charset, output, length); | |
517 | } | |
518 | } | |
519 | ||
520 | return p; | |
521 | } | |
522 | ||
523 | /* Given a single string from a (C-specific) OP_STRING list, convert | |
524 | it to a target string, handling escape sequences specially. The | |
525 | output is written to OUTPUT. DATA is the input string, which has | |
526 | length LEN. DEST_CHARSET is the name of the target character set, | |
527 | and TYPE is the type of target character to use. */ | |
528 | ||
529 | static void | |
530 | parse_one_string (struct obstack *output, char *data, int len, | |
531 | const char *dest_charset, struct type *type) | |
532 | { | |
533 | char *limit; | |
534 | ||
535 | limit = data + len; | |
536 | ||
537 | while (data < limit) | |
538 | { | |
539 | char *p = data; | |
c5504eaf | 540 | |
6c7a06a3 TT |
541 | /* Look for next escape, or the end of the input. */ |
542 | while (p < limit && *p != '\\') | |
543 | ++p; | |
544 | /* If we saw a run of characters, convert them all. */ | |
545 | if (p > data) | |
546 | convert_between_encodings (host_charset (), dest_charset, | |
ac91cd70 | 547 | (gdb_byte *) data, p - data, 1, |
aff410f1 | 548 | output, translit_none); |
6c7a06a3 TT |
549 | /* If we saw an escape, convert it. */ |
550 | if (p < limit) | |
551 | p = convert_escape (type, dest_charset, p, limit, output); | |
552 | data = p; | |
553 | } | |
554 | } | |
555 | ||
556 | /* Expression evaluator for the C language family. Most operations | |
557 | are delegated to evaluate_subexp_standard; see that function for a | |
558 | description of the arguments. */ | |
559 | ||
f4b8a18d | 560 | struct value * |
6c7a06a3 TT |
561 | evaluate_subexp_c (struct type *expect_type, struct expression *exp, |
562 | int *pos, enum noside noside) | |
563 | { | |
564 | enum exp_opcode op = exp->elts[*pos].opcode; | |
565 | ||
566 | switch (op) | |
567 | { | |
568 | case OP_STRING: | |
569 | { | |
570 | int oplen, limit; | |
571 | struct type *type; | |
6c7a06a3 | 572 | struct value *result; |
0c801b96 | 573 | c_string_type dest_type; |
6c7a06a3 | 574 | const char *dest_charset; |
c50491a7 | 575 | int satisfy_expected = 0; |
6c7a06a3 | 576 | |
8268c778 | 577 | auto_obstack output; |
6c7a06a3 TT |
578 | |
579 | ++*pos; | |
580 | oplen = longest_to_int (exp->elts[*pos].longconst); | |
581 | ||
582 | ++*pos; | |
583 | limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1); | |
0c801b96 SM |
584 | dest_type = ((enum c_string_type_values) |
585 | longest_to_int (exp->elts[*pos].longconst)); | |
6c7a06a3 TT |
586 | switch (dest_type & ~C_CHAR) |
587 | { | |
588 | case C_STRING: | |
d80b854b UW |
589 | type = language_string_char_type (exp->language_defn, |
590 | exp->gdbarch); | |
6c7a06a3 TT |
591 | break; |
592 | case C_WIDE_STRING: | |
e6c014f2 UW |
593 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
594 | "wchar_t", NULL, 0); | |
6c7a06a3 TT |
595 | break; |
596 | case C_STRING_16: | |
e6c014f2 UW |
597 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
598 | "char16_t", NULL, 0); | |
6c7a06a3 TT |
599 | break; |
600 | case C_STRING_32: | |
e6c014f2 UW |
601 | type = lookup_typename (exp->language_defn, exp->gdbarch, |
602 | "char32_t", NULL, 0); | |
6c7a06a3 TT |
603 | break; |
604 | default: | |
9b20d036 | 605 | internal_error (__FILE__, __LINE__, _("unhandled c_string_type")); |
6c7a06a3 | 606 | } |
546e879e TT |
607 | |
608 | /* Ensure TYPE_LENGTH is valid for TYPE. */ | |
609 | check_typedef (type); | |
610 | ||
c50491a7 TT |
611 | /* If the caller expects an array of some integral type, |
612 | satisfy them. If something odder is expected, rely on the | |
613 | caller to cast. */ | |
614 | if (expect_type && TYPE_CODE (expect_type) == TYPE_CODE_ARRAY) | |
615 | { | |
616 | struct type *element_type | |
617 | = check_typedef (TYPE_TARGET_TYPE (expect_type)); | |
618 | ||
619 | if (TYPE_CODE (element_type) == TYPE_CODE_INT | |
620 | || TYPE_CODE (element_type) == TYPE_CODE_CHAR) | |
621 | { | |
622 | type = element_type; | |
623 | satisfy_expected = 1; | |
624 | } | |
625 | } | |
626 | ||
f870a310 | 627 | dest_charset = charset_for_string_type (dest_type, exp->gdbarch); |
6c7a06a3 TT |
628 | |
629 | ++*pos; | |
630 | while (*pos < limit) | |
631 | { | |
632 | int len; | |
633 | ||
634 | len = longest_to_int (exp->elts[*pos].longconst); | |
635 | ||
636 | ++*pos; | |
637 | if (noside != EVAL_SKIP) | |
638 | parse_one_string (&output, &exp->elts[*pos].string, len, | |
639 | dest_charset, type); | |
640 | *pos += BYTES_TO_EXP_ELEM (len); | |
641 | } | |
642 | ||
643 | /* Skip the trailing length and opcode. */ | |
644 | *pos += 2; | |
645 | ||
646 | if (noside == EVAL_SKIP) | |
334cc82d TT |
647 | { |
648 | /* Return a dummy value of the appropriate type. */ | |
c50491a7 TT |
649 | if (expect_type != NULL) |
650 | result = allocate_value (expect_type); | |
651 | else if ((dest_type & C_CHAR) != 0) | |
334cc82d TT |
652 | result = allocate_value (type); |
653 | else | |
3b7538c0 | 654 | result = value_cstring ("", 0, type); |
334cc82d TT |
655 | return result; |
656 | } | |
6c7a06a3 TT |
657 | |
658 | if ((dest_type & C_CHAR) != 0) | |
659 | { | |
660 | LONGEST value; | |
661 | ||
662 | if (obstack_object_size (&output) != TYPE_LENGTH (type)) | |
3e43a32a MS |
663 | error (_("Could not convert character " |
664 | "constant to target character set")); | |
51a5cd90 | 665 | value = unpack_long (type, (gdb_byte *) obstack_base (&output)); |
6c7a06a3 TT |
666 | result = value_from_longest (type, value); |
667 | } | |
668 | else | |
669 | { | |
670 | int i; | |
c5504eaf | 671 | |
6c7a06a3 TT |
672 | /* Write the terminating character. */ |
673 | for (i = 0; i < TYPE_LENGTH (type); ++i) | |
674 | obstack_1grow (&output, 0); | |
c50491a7 TT |
675 | |
676 | if (satisfy_expected) | |
677 | { | |
678 | LONGEST low_bound, high_bound; | |
679 | int element_size = TYPE_LENGTH (type); | |
680 | ||
681 | if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type), | |
682 | &low_bound, &high_bound) < 0) | |
683 | { | |
684 | low_bound = 0; | |
685 | high_bound = (TYPE_LENGTH (expect_type) / element_size) - 1; | |
686 | } | |
687 | if (obstack_object_size (&output) / element_size | |
688 | > (high_bound - low_bound + 1)) | |
689 | error (_("Too many array elements")); | |
690 | ||
691 | result = allocate_value (expect_type); | |
692 | memcpy (value_contents_raw (result), obstack_base (&output), | |
693 | obstack_object_size (&output)); | |
694 | } | |
695 | else | |
79f33898 | 696 | result = value_cstring ((const char *) obstack_base (&output), |
c50491a7 TT |
697 | obstack_object_size (&output), |
698 | type); | |
6c7a06a3 | 699 | } |
6c7a06a3 TT |
700 | return result; |
701 | } | |
702 | break; | |
703 | ||
704 | default: | |
705 | break; | |
706 | } | |
707 | return evaluate_subexp_standard (expect_type, exp, pos, noside); | |
708 | } | |
43cc5389 TT |
709 | \f |
710 | /* la_watch_location_expression for C. */ | |
c5aa993b | 711 | |
43cc5389 TT |
712 | gdb::unique_xmalloc_ptr<char> |
713 | c_watch_location_expression (struct type *type, CORE_ADDR addr) | |
714 | { | |
715 | type = check_typedef (TYPE_TARGET_TYPE (check_typedef (type))); | |
716 | std::string name = type_to_string (type); | |
717 | return gdb::unique_xmalloc_ptr<char> | |
718 | (xstrprintf ("* (%s *) %s", name.c_str (), core_addr_to_string (addr))); | |
719 | } | |
84f0252a | 720 | |
84f0252a | 721 | \f |
c906108c SS |
722 | /* Table mapping opcodes into strings for printing operators |
723 | and precedences of the operators. */ | |
724 | ||
725 | const struct op_print c_op_print_tab[] = | |
c5aa993b JM |
726 | { |
727 | {",", BINOP_COMMA, PREC_COMMA, 0}, | |
728 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
729 | {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
730 | {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
731 | {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, | |
732 | {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, | |
733 | {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, | |
734 | {"==", BINOP_EQUAL, PREC_EQUAL, 0}, | |
735 | {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
736 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, | |
737 | {">=", BINOP_GEQ, PREC_ORDER, 0}, | |
738 | {">", BINOP_GTR, PREC_ORDER, 0}, | |
739 | {"<", BINOP_LESS, PREC_ORDER, 0}, | |
740 | {">>", BINOP_RSH, PREC_SHIFT, 0}, | |
741 | {"<<", BINOP_LSH, PREC_SHIFT, 0}, | |
742 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
743 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
744 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
745 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
746 | {"%", BINOP_REM, PREC_MUL, 0}, | |
747 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
a016fc87 | 748 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, |
c5aa993b JM |
749 | {"-", UNOP_NEG, PREC_PREFIX, 0}, |
750 | {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
751 | {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0}, | |
752 | {"*", UNOP_IND, PREC_PREFIX, 0}, | |
753 | {"&", UNOP_ADDR, PREC_PREFIX, 0}, | |
754 | {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0}, | |
007e1530 | 755 | {"alignof ", UNOP_ALIGNOF, PREC_PREFIX, 0}, |
c5aa993b JM |
756 | {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0}, |
757 | {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0}, | |
f486487f | 758 | {NULL, OP_NULL, PREC_PREFIX, 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 | ||
56618e20 TT |
829 | static const char *c_extensions[] = |
830 | { | |
831 | ".c", NULL | |
832 | }; | |
833 | ||
47e77640 | 834 | extern const struct language_defn c_language_defn = |
c5aa993b | 835 | { |
c906108c | 836 | "c", /* Language name */ |
6abde28f | 837 | "C", |
c906108c | 838 | language_c, |
c906108c | 839 | range_check_off, |
63872f9d | 840 | case_sensitive_on, |
7ca2d3a3 | 841 | array_row_major, |
9a044a89 | 842 | macro_expansion_c, |
56618e20 | 843 | c_extensions, |
6c7a06a3 | 844 | &exp_descriptor_c, |
7c8adf68 | 845 | c_parse, |
b3f11165 | 846 | c_yyerror, |
e85c3284 | 847 | null_post_parser, |
c906108c SS |
848 | c_printchar, /* Print a character constant */ |
849 | c_printstr, /* Function to print string constant */ | |
850 | c_emit_char, /* Print a single char */ | |
c906108c | 851 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 852 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
853 | c_val_print, /* Print a value using appropriate syntax */ |
854 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 855 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 856 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 857 | NULL, /* name_of_this */ |
59cc4834 | 858 | true, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 859 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 860 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 861 | NULL, /* Language specific symbol demangler */ |
8b302db8 | 862 | NULL, |
aff410f1 MS |
863 | NULL, /* Language specific |
864 | class_name_from_physname */ | |
c906108c SS |
865 | c_op_print_tab, /* expression operators for printing */ |
866 | 1, /* c-style arrays */ | |
867 | 0, /* String lower bound */ | |
6084f43a | 868 | default_word_break_characters, |
eb3ff9a5 | 869 | default_collect_symbol_completion_matches, |
685419e2 | 870 | c_language_arch_info, |
e79af960 | 871 | default_print_array_index, |
41f1b697 | 872 | default_pass_by_reference, |
ae6a3a4c | 873 | c_get_string, |
43cc5389 | 874 | c_watch_location_expression, |
b5ec771e | 875 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 876 | iterate_over_symbols, |
5ffa0793 | 877 | default_search_name_hash, |
a53b64ea | 878 | &c_varobj_ops, |
bb2ec1b3 TT |
879 | c_get_compile_context, |
880 | c_compute_program, | |
c906108c SS |
881 | LANG_MAGIC |
882 | }; | |
883 | ||
cad351d1 UW |
884 | enum cplus_primitive_types { |
885 | cplus_primitive_type_int, | |
886 | cplus_primitive_type_long, | |
887 | cplus_primitive_type_short, | |
888 | cplus_primitive_type_char, | |
889 | cplus_primitive_type_float, | |
890 | cplus_primitive_type_double, | |
891 | cplus_primitive_type_void, | |
892 | cplus_primitive_type_long_long, | |
893 | cplus_primitive_type_signed_char, | |
894 | cplus_primitive_type_unsigned_char, | |
895 | cplus_primitive_type_unsigned_short, | |
896 | cplus_primitive_type_unsigned_int, | |
897 | cplus_primitive_type_unsigned_long, | |
898 | cplus_primitive_type_unsigned_long_long, | |
899 | cplus_primitive_type_long_double, | |
900 | cplus_primitive_type_complex, | |
901 | cplus_primitive_type_double_complex, | |
902 | cplus_primitive_type_bool, | |
213e4dc2 TJB |
903 | cplus_primitive_type_decfloat, |
904 | cplus_primitive_type_decdouble, | |
905 | cplus_primitive_type_declong, | |
53e710ac PA |
906 | cplus_primitive_type_char16_t, |
907 | cplus_primitive_type_char32_t, | |
53375380 | 908 | cplus_primitive_type_wchar_t, |
cad351d1 | 909 | nr_cplus_primitive_types |
c906108c SS |
910 | }; |
911 | ||
cad351d1 UW |
912 | static void |
913 | cplus_language_arch_info (struct gdbarch *gdbarch, | |
914 | struct language_arch_info *lai) | |
915 | { | |
916 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
c5504eaf | 917 | |
cad351d1 UW |
918 | lai->string_char_type = builtin->builtin_char; |
919 | lai->primitive_type_vector | |
920 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1, | |
921 | struct type *); | |
922 | lai->primitive_type_vector [cplus_primitive_type_int] | |
923 | = builtin->builtin_int; | |
924 | lai->primitive_type_vector [cplus_primitive_type_long] | |
925 | = builtin->builtin_long; | |
926 | lai->primitive_type_vector [cplus_primitive_type_short] | |
927 | = builtin->builtin_short; | |
928 | lai->primitive_type_vector [cplus_primitive_type_char] | |
929 | = builtin->builtin_char; | |
930 | lai->primitive_type_vector [cplus_primitive_type_float] | |
931 | = builtin->builtin_float; | |
932 | lai->primitive_type_vector [cplus_primitive_type_double] | |
933 | = builtin->builtin_double; | |
934 | lai->primitive_type_vector [cplus_primitive_type_void] | |
935 | = builtin->builtin_void; | |
936 | lai->primitive_type_vector [cplus_primitive_type_long_long] | |
937 | = builtin->builtin_long_long; | |
938 | lai->primitive_type_vector [cplus_primitive_type_signed_char] | |
939 | = builtin->builtin_signed_char; | |
940 | lai->primitive_type_vector [cplus_primitive_type_unsigned_char] | |
941 | = builtin->builtin_unsigned_char; | |
942 | lai->primitive_type_vector [cplus_primitive_type_unsigned_short] | |
943 | = builtin->builtin_unsigned_short; | |
944 | lai->primitive_type_vector [cplus_primitive_type_unsigned_int] | |
945 | = builtin->builtin_unsigned_int; | |
946 | lai->primitive_type_vector [cplus_primitive_type_unsigned_long] | |
947 | = builtin->builtin_unsigned_long; | |
948 | lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long] | |
949 | = builtin->builtin_unsigned_long_long; | |
950 | lai->primitive_type_vector [cplus_primitive_type_long_double] | |
951 | = builtin->builtin_long_double; | |
952 | lai->primitive_type_vector [cplus_primitive_type_complex] | |
953 | = builtin->builtin_complex; | |
954 | lai->primitive_type_vector [cplus_primitive_type_double_complex] | |
955 | = builtin->builtin_double_complex; | |
956 | lai->primitive_type_vector [cplus_primitive_type_bool] | |
957 | = builtin->builtin_bool; | |
213e4dc2 TJB |
958 | lai->primitive_type_vector [cplus_primitive_type_decfloat] |
959 | = builtin->builtin_decfloat; | |
960 | lai->primitive_type_vector [cplus_primitive_type_decdouble] | |
961 | = builtin->builtin_decdouble; | |
962 | lai->primitive_type_vector [cplus_primitive_type_declong] | |
963 | = builtin->builtin_declong; | |
53e710ac PA |
964 | lai->primitive_type_vector [cplus_primitive_type_char16_t] |
965 | = builtin->builtin_char16; | |
966 | lai->primitive_type_vector [cplus_primitive_type_char32_t] | |
967 | = builtin->builtin_char32; | |
53375380 PA |
968 | lai->primitive_type_vector [cplus_primitive_type_wchar_t] |
969 | = builtin->builtin_wchar; | |
fbb06eb1 UW |
970 | |
971 | lai->bool_type_symbol = "bool"; | |
972 | lai->bool_type_default = builtin->builtin_bool; | |
cad351d1 UW |
973 | } |
974 | ||
56618e20 TT |
975 | static const char *cplus_extensions[] = |
976 | { | |
977 | ".C", ".cc", ".cp", ".cpp", ".cxx", ".c++", NULL | |
978 | }; | |
979 | ||
47e77640 | 980 | extern const struct language_defn cplus_language_defn = |
c5aa993b JM |
981 | { |
982 | "c++", /* Language name */ | |
6abde28f | 983 | "C++", |
c906108c | 984 | language_cplus, |
c906108c | 985 | range_check_off, |
63872f9d | 986 | case_sensitive_on, |
7ca2d3a3 | 987 | array_row_major, |
9a044a89 | 988 | macro_expansion_c, |
56618e20 | 989 | cplus_extensions, |
6c7a06a3 | 990 | &exp_descriptor_c, |
7c8adf68 | 991 | c_parse, |
b3f11165 | 992 | c_yyerror, |
e85c3284 | 993 | null_post_parser, |
c906108c SS |
994 | c_printchar, /* Print a character constant */ |
995 | c_printstr, /* Function to print string constant */ | |
996 | c_emit_char, /* Print a single char */ | |
c906108c | 997 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 998 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
999 | c_val_print, /* Print a value using appropriate syntax */ |
1000 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 1001 | default_read_var_value, /* la_read_var_value */ |
b18be20d | 1002 | cplus_skip_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1003 | "this", /* name_of_this */ |
59cc4834 | 1004 | false, /* la_store_sym_names_in_linkage_form_p */ |
1fcb5155 | 1005 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1006 | cp_lookup_transparent_type, /* lookup_transparent_type */ |
8de20a37 | 1007 | gdb_demangle, /* Language specific symbol demangler */ |
8b302db8 | 1008 | gdb_sniff_from_mangled_name, |
aff410f1 MS |
1009 | cp_class_name_from_physname, /* Language specific |
1010 | class_name_from_physname */ | |
c906108c SS |
1011 | c_op_print_tab, /* expression operators for printing */ |
1012 | 1, /* c-style arrays */ | |
1013 | 0, /* String lower bound */ | |
6084f43a | 1014 | default_word_break_characters, |
eb3ff9a5 | 1015 | default_collect_symbol_completion_matches, |
cad351d1 | 1016 | cplus_language_arch_info, |
e79af960 | 1017 | default_print_array_index, |
41f1b697 | 1018 | cp_pass_by_reference, |
ae6a3a4c | 1019 | c_get_string, |
43cc5389 | 1020 | c_watch_location_expression, |
b5ec771e | 1021 | cp_get_symbol_name_matcher, |
f8eba3c6 | 1022 | iterate_over_symbols, |
a20714ff | 1023 | cp_search_name_hash, |
a53b64ea | 1024 | &cplus_varobj_ops, |
bb2ec1b3 TT |
1025 | NULL, |
1026 | NULL, | |
c906108c SS |
1027 | LANG_MAGIC |
1028 | }; | |
1029 | ||
56618e20 TT |
1030 | static const char *asm_extensions[] = |
1031 | { | |
1032 | ".s", ".sx", ".S", NULL | |
1033 | }; | |
1034 | ||
47e77640 | 1035 | extern const struct language_defn asm_language_defn = |
c5aa993b | 1036 | { |
c906108c | 1037 | "asm", /* Language name */ |
6abde28f | 1038 | "assembly", |
c906108c | 1039 | language_asm, |
c906108c | 1040 | range_check_off, |
63872f9d | 1041 | case_sensitive_on, |
7ca2d3a3 | 1042 | array_row_major, |
9a044a89 | 1043 | macro_expansion_c, |
56618e20 | 1044 | asm_extensions, |
6c7a06a3 | 1045 | &exp_descriptor_c, |
7c8adf68 | 1046 | c_parse, |
b3f11165 | 1047 | c_yyerror, |
e85c3284 | 1048 | null_post_parser, |
c906108c SS |
1049 | c_printchar, /* Print a character constant */ |
1050 | c_printstr, /* Function to print string constant */ | |
1051 | c_emit_char, /* Print a single char */ | |
c906108c | 1052 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1053 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1054 | c_val_print, /* Print a value using appropriate syntax */ |
1055 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 1056 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 1057 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 1058 | NULL, /* name_of_this */ |
59cc4834 | 1059 | true, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 1060 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1061 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1062 | NULL, /* Language specific symbol demangler */ |
8b302db8 | 1063 | NULL, |
aff410f1 MS |
1064 | NULL, /* Language specific |
1065 | class_name_from_physname */ | |
c906108c SS |
1066 | c_op_print_tab, /* expression operators for printing */ |
1067 | 1, /* c-style arrays */ | |
1068 | 0, /* String lower bound */ | |
6084f43a | 1069 | default_word_break_characters, |
eb3ff9a5 | 1070 | default_collect_symbol_completion_matches, |
aff410f1 | 1071 | c_language_arch_info, /* FIXME: la_language_arch_info. */ |
e79af960 | 1072 | default_print_array_index, |
41f1b697 | 1073 | default_pass_by_reference, |
ae6a3a4c | 1074 | c_get_string, |
43cc5389 | 1075 | c_watch_location_expression, |
b5ec771e | 1076 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 1077 | iterate_over_symbols, |
5ffa0793 | 1078 | default_search_name_hash, |
a53b64ea | 1079 | &default_varobj_ops, |
bb2ec1b3 TT |
1080 | NULL, |
1081 | NULL, | |
c906108c SS |
1082 | LANG_MAGIC |
1083 | }; | |
1084 | ||
20a0e81d JB |
1085 | /* The following language_defn does not represent a real language. |
1086 | It just provides a minimal support a-la-C that should allow users | |
1087 | to do some simple operations when debugging applications that use | |
1088 | a language currently not supported by GDB. */ | |
1089 | ||
47e77640 | 1090 | extern const struct language_defn minimal_language_defn = |
20a0e81d JB |
1091 | { |
1092 | "minimal", /* Language name */ | |
6abde28f | 1093 | "Minimal", |
20a0e81d | 1094 | language_minimal, |
20a0e81d | 1095 | range_check_off, |
20a0e81d | 1096 | case_sensitive_on, |
7ca2d3a3 | 1097 | array_row_major, |
9a044a89 | 1098 | macro_expansion_c, |
56618e20 | 1099 | NULL, |
6c7a06a3 | 1100 | &exp_descriptor_c, |
7c8adf68 | 1101 | c_parse, |
b3f11165 | 1102 | c_yyerror, |
e85c3284 | 1103 | null_post_parser, |
20a0e81d JB |
1104 | c_printchar, /* Print a character constant */ |
1105 | c_printstr, /* Function to print string constant */ | |
1106 | c_emit_char, /* Print a single char */ | |
20a0e81d | 1107 | c_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1108 | c_print_typedef, /* Print a typedef using appropriate syntax */ |
20a0e81d JB |
1109 | c_val_print, /* Print a value using appropriate syntax */ |
1110 | c_value_print, /* Print a top-level value */ | |
a5ee536b | 1111 | default_read_var_value, /* la_read_var_value */ |
20a0e81d | 1112 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 1113 | NULL, /* name_of_this */ |
59cc4834 | 1114 | true, /* la_store_sym_names_in_linkage_form_p */ |
5f9a71c3 | 1115 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1116 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
20a0e81d | 1117 | NULL, /* Language specific symbol demangler */ |
8b302db8 | 1118 | NULL, |
aff410f1 MS |
1119 | NULL, /* Language specific |
1120 | class_name_from_physname */ | |
20a0e81d JB |
1121 | c_op_print_tab, /* expression operators for printing */ |
1122 | 1, /* c-style arrays */ | |
1123 | 0, /* String lower bound */ | |
6084f43a | 1124 | default_word_break_characters, |
eb3ff9a5 | 1125 | default_collect_symbol_completion_matches, |
e9667a65 | 1126 | c_language_arch_info, |
e79af960 | 1127 | default_print_array_index, |
41f1b697 | 1128 | default_pass_by_reference, |
ae6a3a4c | 1129 | c_get_string, |
43cc5389 | 1130 | c_watch_location_expression, |
b5ec771e | 1131 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 1132 | iterate_over_symbols, |
5ffa0793 | 1133 | default_search_name_hash, |
a53b64ea | 1134 | &default_varobj_ops, |
bb2ec1b3 TT |
1135 | NULL, |
1136 | NULL, | |
20a0e81d JB |
1137 | LANG_MAGIC |
1138 | }; |