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c906108c | 1 | /* C language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
1d506c26 | 3 | Copyright (C) 1992-2024 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 | 19 | |
ec452525 | 20 | #include "extract-store-integer.h" |
4de283e4 TT |
21 | #include "symtab.h" |
22 | #include "gdbtypes.h" | |
23 | #include "expression.h" | |
24 | #include "parser-defs.h" | |
25 | #include "language.h" | |
26 | #include "varobj.h" | |
c906108c | 27 | #include "c-lang.h" |
b1b60145 | 28 | #include "c-support.h" |
4de283e4 TT |
29 | #include "valprint.h" |
30 | #include "macroscope.h" | |
234b45d4 | 31 | #include "charset.h" |
4de283e4 | 32 | #include "demangle.h" |
b18be20d | 33 | #include "cp-abi.h" |
1fcb5155 | 34 | #include "cp-support.h" |
bf31fd38 | 35 | #include "gdbsupport/gdb_obstack.h" |
4de283e4 | 36 | #include <ctype.h> |
578d3588 | 37 | #include "gdbcore.h" |
0d12e84c | 38 | #include "gdbarch.h" |
72d0a711 | 39 | #include "c-exp.h" |
8e25bafe | 40 | |
6c7a06a3 TT |
41 | /* Given a C string type, STR_TYPE, return the corresponding target |
42 | character set name. */ | |
43 | ||
44 | static const char * | |
0c801b96 | 45 | charset_for_string_type (c_string_type str_type, struct gdbarch *gdbarch) |
6c7a06a3 TT |
46 | { |
47 | switch (str_type & ~C_CHAR) | |
48 | { | |
49 | case C_STRING: | |
f870a310 | 50 | return target_charset (gdbarch); |
6c7a06a3 | 51 | case C_WIDE_STRING: |
f870a310 | 52 | return target_wide_charset (gdbarch); |
6c7a06a3 | 53 | case C_STRING_16: |
b8899f2b | 54 | /* FIXME: UTF-16 is not always correct. */ |
f870a310 | 55 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 56 | return "UTF-16BE"; |
6c7a06a3 | 57 | else |
b8899f2b | 58 | return "UTF-16LE"; |
6c7a06a3 | 59 | case C_STRING_32: |
b8899f2b | 60 | /* FIXME: UTF-32 is not always correct. */ |
f870a310 | 61 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
b8899f2b | 62 | return "UTF-32BE"; |
6c7a06a3 | 63 | else |
b8899f2b | 64 | return "UTF-32LE"; |
6c7a06a3 | 65 | } |
f34652de | 66 | internal_error (_("unhandled c_string_type")); |
6c7a06a3 TT |
67 | } |
68 | ||
69 | /* Classify ELTTYPE according to what kind of character it is. Return | |
70 | the enum constant representing the character type. Also set | |
71 | *ENCODING to the name of the character set to use when converting | |
aff410f1 MS |
72 | characters of this type in target BYTE_ORDER to the host character |
73 | set. */ | |
6c7a06a3 | 74 | |
0c801b96 | 75 | static c_string_type |
f870a310 | 76 | classify_type (struct type *elttype, struct gdbarch *gdbarch, |
e17a4113 | 77 | const char **encoding) |
6c7a06a3 | 78 | { |
0c801b96 | 79 | c_string_type result; |
6c7a06a3 | 80 | |
85e306ed TT |
81 | /* We loop because ELTTYPE may be a typedef, and we want to |
82 | successively peel each typedef until we reach a type we | |
83 | understand. We don't use CHECK_TYPEDEF because that will strip | |
84 | all typedefs at once -- but in C, wchar_t is itself a typedef, so | |
85 | that would do the wrong thing. */ | |
86 | while (elttype) | |
6c7a06a3 | 87 | { |
7d93a1e0 | 88 | const char *name = elttype->name (); |
6c7a06a3 | 89 | |
1c0e4363 | 90 | if (name == nullptr) |
6c7a06a3 TT |
91 | { |
92 | result = C_CHAR; | |
93 | goto done; | |
94 | } | |
95 | ||
96 | if (!strcmp (name, "wchar_t")) | |
97 | { | |
98 | result = C_WIDE_CHAR; | |
99 | goto done; | |
100 | } | |
101 | ||
102 | if (!strcmp (name, "char16_t")) | |
103 | { | |
104 | result = C_CHAR_16; | |
105 | goto done; | |
106 | } | |
107 | ||
108 | if (!strcmp (name, "char32_t")) | |
109 | { | |
110 | result = C_CHAR_32; | |
111 | goto done; | |
112 | } | |
113 | ||
78134374 | 114 | if (elttype->code () != TYPE_CODE_TYPEDEF) |
85e306ed TT |
115 | break; |
116 | ||
117 | /* Call for side effects. */ | |
118 | check_typedef (elttype); | |
119 | ||
27710edb SM |
120 | if (elttype->target_type ()) |
121 | elttype = elttype->target_type (); | |
85e306ed TT |
122 | else |
123 | { | |
124 | /* Perhaps check_typedef did not update the target type. In | |
125 | this case, force the lookup again and hope it works out. | |
126 | It never will for C, but it might for C++. */ | |
f168693b | 127 | elttype = check_typedef (elttype); |
85e306ed | 128 | } |
6c7a06a3 | 129 | } |
6c7a06a3 TT |
130 | |
131 | /* Punt. */ | |
132 | result = C_CHAR; | |
133 | ||
134 | done: | |
e17a4113 | 135 | if (encoding) |
f870a310 | 136 | *encoding = charset_for_string_type (result, gdbarch); |
e17a4113 | 137 | |
6c7a06a3 TT |
138 | return result; |
139 | } | |
140 | ||
aff410f1 MS |
141 | /* Print the character C on STREAM as part of the contents of a |
142 | literal string whose delimiter is QUOTER. Note that that format | |
143 | for printing characters and strings is language specific. */ | |
c906108c | 144 | |
6aecb9c2 | 145 | void |
c1c7fe59 TT |
146 | language_defn::emitchar (int c, struct type *type, |
147 | struct ui_file *stream, int quoter) const | |
c906108c | 148 | { |
6c7a06a3 | 149 | const char *encoding; |
234b45d4 | 150 | |
8ee511af | 151 | classify_type (type, type->arch (), &encoding); |
3b2b8fea | 152 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
153 | } |
154 | ||
c5ee319e AB |
155 | /* See language.h. */ |
156 | ||
c906108c | 157 | void |
c5ee319e AB |
158 | language_defn::printchar (int c, struct type *type, |
159 | struct ui_file * stream) const | |
c906108c | 160 | { |
0c801b96 | 161 | c_string_type str_type; |
6c7a06a3 | 162 | |
8ee511af | 163 | str_type = classify_type (type, type->arch (), NULL); |
6c7a06a3 TT |
164 | switch (str_type) |
165 | { | |
166 | case C_CHAR: | |
167 | break; | |
168 | case C_WIDE_CHAR: | |
a11ac3b3 | 169 | gdb_putc ('L', stream); |
6c7a06a3 TT |
170 | break; |
171 | case C_CHAR_16: | |
a11ac3b3 | 172 | gdb_putc ('u', stream); |
6c7a06a3 TT |
173 | break; |
174 | case C_CHAR_32: | |
a11ac3b3 | 175 | gdb_putc ('U', stream); |
6c7a06a3 TT |
176 | break; |
177 | } | |
178 | ||
a11ac3b3 | 179 | gdb_putc ('\'', stream); |
76ca72bc | 180 | emitchar (c, type, stream, '\''); |
a11ac3b3 | 181 | gdb_putc ('\'', stream); |
c906108c SS |
182 | } |
183 | ||
aff410f1 MS |
184 | /* Print the character string STRING, printing at most LENGTH |
185 | characters. LENGTH is -1 if the string is nul terminated. Each | |
186 | character is WIDTH bytes long. Printing stops early if the number | |
76b58849 AB |
187 | hits print_max_chars; repeat counts are printed as appropriate. |
188 | Print ellipses at the end if we had to stop before printing LENGTH | |
aff410f1 | 189 | characters, or if FORCE_ELLIPSES. */ |
c906108c SS |
190 | |
191 | void | |
3a3bb6eb TT |
192 | language_defn::printstr (struct ui_file *stream, struct type *type, |
193 | const gdb_byte *string, unsigned int length, | |
194 | const char *user_encoding, int force_ellipses, | |
195 | const struct value_print_options *options) const | |
c906108c | 196 | { |
0c801b96 | 197 | c_string_type str_type; |
3b2b8fea TT |
198 | const char *type_encoding; |
199 | const char *encoding; | |
200 | ||
8ee511af | 201 | str_type = (classify_type (type, type->arch (), &type_encoding) |
f870a310 | 202 | & ~C_CHAR); |
6c7a06a3 TT |
203 | switch (str_type) |
204 | { | |
205 | case C_STRING: | |
206 | break; | |
207 | case C_WIDE_STRING: | |
0426ad51 | 208 | gdb_puts ("L", stream); |
6c7a06a3 TT |
209 | break; |
210 | case C_STRING_16: | |
0426ad51 | 211 | gdb_puts ("u", stream); |
6c7a06a3 TT |
212 | break; |
213 | case C_STRING_32: | |
0426ad51 | 214 | gdb_puts ("U", stream); |
6c7a06a3 TT |
215 | break; |
216 | } | |
217 | ||
3b2b8fea | 218 | encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding; |
6c7a06a3 | 219 | |
3b2b8fea TT |
220 | generic_printstr (stream, type, string, length, encoding, force_ellipses, |
221 | '"', 1, options); | |
c906108c | 222 | } |
ae6a3a4c TJB |
223 | |
224 | /* Obtain a C string from the inferior storing it in a newly allocated | |
aff410f1 MS |
225 | buffer in BUFFER, which should be freed by the caller. If the in- |
226 | and out-parameter *LENGTH is specified at -1, the string is read | |
fbb8f299 | 227 | until a null character of the appropriate width is found, otherwise |
aff410f1 MS |
228 | the string is read to the length of characters specified. The size |
229 | of a character is determined by the length of the target type of | |
0987cf35 DE |
230 | the pointer or array. |
231 | ||
232 | If VALUE is an array with a known length, and *LENGTH is -1, | |
233 | the function will not read past the end of the array. However, any | |
234 | declared size of the array is ignored if *LENGTH > 0. | |
235 | ||
236 | On completion, *LENGTH will be set to the size of the string read in | |
fbb8f299 PM |
237 | characters. (If a length of -1 is specified, the length returned |
238 | will not include the null character). CHARSET is always set to the | |
239 | target charset. */ | |
ae6a3a4c TJB |
240 | |
241 | void | |
b4be9fad | 242 | c_get_string (struct value *value, gdb::unique_xmalloc_ptr<gdb_byte> *buffer, |
aff410f1 MS |
243 | int *length, struct type **char_type, |
244 | const char **charset) | |
ae6a3a4c TJB |
245 | { |
246 | int err, width; | |
247 | unsigned int fetchlimit; | |
d0c97917 | 248 | struct type *type = check_typedef (value->type ()); |
27710edb | 249 | struct type *element_type = type->target_type (); |
fbb8f299 | 250 | int req_length = *length; |
aff410f1 | 251 | enum bfd_endian byte_order |
34877895 | 252 | = type_byte_order (type); |
ae6a3a4c TJB |
253 | |
254 | if (element_type == NULL) | |
255 | goto error; | |
256 | ||
78134374 | 257 | if (type->code () == TYPE_CODE_ARRAY) |
ae6a3a4c | 258 | { |
aff410f1 MS |
259 | /* If we know the size of the array, we can use it as a limit on |
260 | the number of characters to be fetched. */ | |
1f704f76 | 261 | if (type->num_fields () == 1 |
940da03e | 262 | && type->field (0).type ()->code () == TYPE_CODE_RANGE) |
ae6a3a4c TJB |
263 | { |
264 | LONGEST low_bound, high_bound; | |
265 | ||
940da03e | 266 | get_discrete_bounds (type->field (0).type (), |
ae6a3a4c TJB |
267 | &low_bound, &high_bound); |
268 | fetchlimit = high_bound - low_bound + 1; | |
269 | } | |
270 | else | |
271 | fetchlimit = UINT_MAX; | |
272 | } | |
78134374 | 273 | else if (type->code () == TYPE_CODE_PTR) |
ae6a3a4c TJB |
274 | fetchlimit = UINT_MAX; |
275 | else | |
276 | /* We work only with arrays and pointers. */ | |
277 | goto error; | |
278 | ||
96c07c5b | 279 | if (! c_textual_element_type (element_type, 0)) |
ae6a3a4c | 280 | goto error; |
8ee511af | 281 | classify_type (element_type, element_type->arch (), charset); |
df86565b | 282 | width = element_type->length (); |
ae6a3a4c | 283 | |
aff410f1 MS |
284 | /* If the string lives in GDB's memory instead of the inferior's, |
285 | then we just need to copy it to BUFFER. Also, since such strings | |
286 | are arrays with known size, FETCHLIMIT will hold the size of the | |
80e55b13 TT |
287 | array. |
288 | ||
289 | An array is assumed to live in GDB's memory, so we take this path | |
290 | here. | |
291 | ||
292 | However, it's possible for the caller to request more array | |
293 | elements than apparently exist -- this can happen when using the | |
294 | C struct hack. So, only do this if either no length was | |
295 | specified, or the length is within the existing bounds. This | |
296 | avoids running off the end of the value's contents. */ | |
736355f2 TT |
297 | if ((value->lval () == not_lval |
298 | || value->lval () == lval_internalvar | |
78134374 | 299 | || type->code () == TYPE_CODE_ARRAY) |
80e55b13 TT |
300 | && fetchlimit != UINT_MAX |
301 | && (*length < 0 || *length <= fetchlimit)) | |
ae6a3a4c TJB |
302 | { |
303 | int i; | |
efaf1ae0 | 304 | const gdb_byte *contents = value->contents ().data (); |
ae6a3a4c | 305 | |
fbb8f299 PM |
306 | /* If a length is specified, use that. */ |
307 | if (*length >= 0) | |
308 | i = *length; | |
309 | else | |
e623f035 SM |
310 | /* Otherwise, look for a null character. */ |
311 | for (i = 0; i < fetchlimit; i++) | |
aff410f1 MS |
312 | if (extract_unsigned_integer (contents + i * width, |
313 | width, byte_order) == 0) | |
e623f035 | 314 | break; |
fbb8f299 PM |
315 | |
316 | /* I is now either a user-defined length, the number of non-null | |
e623f035 | 317 | characters, or FETCHLIMIT. */ |
ae6a3a4c | 318 | *length = i * width; |
b4be9fad TT |
319 | buffer->reset ((gdb_byte *) xmalloc (*length)); |
320 | memcpy (buffer->get (), contents, *length); | |
ae6a3a4c TJB |
321 | err = 0; |
322 | } | |
323 | else | |
324 | { | |
80e55b13 TT |
325 | /* value_as_address does not return an address for an array when |
326 | c_style_arrays is false, so we handle that specially | |
327 | here. */ | |
328 | CORE_ADDR addr; | |
78134374 | 329 | if (type->code () == TYPE_CODE_ARRAY) |
80e55b13 | 330 | { |
736355f2 | 331 | if (value->lval () != lval_memory) |
80e55b13 TT |
332 | error (_("Attempt to take address of value " |
333 | "not located in memory.")); | |
9feb2d07 | 334 | addr = value->address (); |
80e55b13 TT |
335 | } |
336 | else | |
337 | addr = value_as_address (value); | |
621c8364 | 338 | |
0987cf35 DE |
339 | /* Prior to the fix for PR 16196 read_string would ignore fetchlimit |
340 | if length > 0. The old "broken" behaviour is the behaviour we want: | |
341 | The caller may want to fetch 100 bytes from a variable length array | |
342 | implemented using the common idiom of having an array of length 1 at | |
343 | the end of a struct. In this case we want to ignore the declared | |
344 | size of the array. However, it's counterintuitive to implement that | |
345 | behaviour in read_string: what does fetchlimit otherwise mean if | |
346 | length > 0. Therefore we implement the behaviour we want here: | |
347 | If *length > 0, don't specify a fetchlimit. This preserves the | |
348 | previous behaviour. We could move this check above where we know | |
349 | whether the array is declared with a fixed size, but we only want | |
350 | to apply this behaviour when calling read_string. PR 16286. */ | |
351 | if (*length > 0) | |
352 | fetchlimit = UINT_MAX; | |
353 | ||
3b1bdd53 | 354 | err = target_read_string (addr, *length, width, fetchlimit, |
9da74023 | 355 | buffer, length); |
d09f2c3f | 356 | if (err != 0) |
b4be9fad | 357 | memory_error (TARGET_XFER_E_IO, addr); |
ae6a3a4c TJB |
358 | } |
359 | ||
fbb8f299 PM |
360 | /* If the LENGTH is specified at -1, we want to return the string |
361 | length up to the terminating null character. If an actual length | |
362 | was specified, we want to return the length of exactly what was | |
363 | read. */ | |
364 | if (req_length == -1) | |
365 | /* If the last character is null, subtract it from LENGTH. */ | |
366 | if (*length > 0 | |
b4be9fad | 367 | && extract_unsigned_integer (buffer->get () + *length - width, |
aff410f1 | 368 | width, byte_order) == 0) |
fbb8f299 PM |
369 | *length -= width; |
370 | ||
371 | /* The read_string function will return the number of bytes read. | |
372 | If length returned from read_string was > 0, return the number of | |
373 | characters read by dividing the number of bytes by width. */ | |
374 | if (*length != 0) | |
375 | *length = *length / width; | |
ae6a3a4c | 376 | |
96c07c5b | 377 | *char_type = element_type; |
ae6a3a4c TJB |
378 | |
379 | return; | |
380 | ||
381 | error: | |
382 | { | |
2f408ecb PA |
383 | std::string type_str = type_to_string (type); |
384 | if (!type_str.empty ()) | |
ae6a3a4c | 385 | { |
ae6a3a4c | 386 | error (_("Trying to read string with inappropriate type `%s'."), |
2f408ecb | 387 | type_str.c_str ()); |
ae6a3a4c TJB |
388 | } |
389 | else | |
390 | error (_("Trying to read string with inappropriate type.")); | |
391 | } | |
392 | } | |
393 | ||
c906108c | 394 | \f |
6c7a06a3 TT |
395 | /* Evaluating C and C++ expressions. */ |
396 | ||
397 | /* Convert a UCN. The digits of the UCN start at P and extend no | |
398 | farther than LIMIT. DEST_CHARSET is the name of the character set | |
399 | into which the UCN should be converted. The results are written to | |
400 | OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8. | |
401 | Returns a pointer to just after the final digit of the UCN. */ | |
402 | ||
e8b2f0d9 TT |
403 | static const char * |
404 | convert_ucn (const char *p, const char *limit, const char *dest_charset, | |
6c7a06a3 TT |
405 | struct obstack *output, int length) |
406 | { | |
407 | unsigned long result = 0; | |
408 | gdb_byte data[4]; | |
409 | int i; | |
410 | ||
b1b60145 | 411 | for (i = 0; i < length && p < limit && ISXDIGIT (*p); ++i, ++p) |
2b531492 | 412 | result = (result << 4) + fromhex (*p); |
6c7a06a3 TT |
413 | |
414 | for (i = 3; i >= 0; --i) | |
415 | { | |
416 | data[i] = result & 0xff; | |
417 | result >>= 8; | |
418 | } | |
419 | ||
aff410f1 MS |
420 | convert_between_encodings ("UTF-32BE", dest_charset, data, |
421 | 4, 4, output, translit_none); | |
6c7a06a3 TT |
422 | |
423 | return p; | |
424 | } | |
425 | ||
426 | /* Emit a character, VALUE, which was specified numerically, to | |
427 | OUTPUT. TYPE is the target character type. */ | |
428 | ||
429 | static void | |
430 | emit_numeric_character (struct type *type, unsigned long value, | |
431 | struct obstack *output) | |
432 | { | |
433 | gdb_byte *buffer; | |
434 | ||
df86565b | 435 | buffer = (gdb_byte *) alloca (type->length ()); |
6c7a06a3 | 436 | pack_long (buffer, type, value); |
df86565b | 437 | obstack_grow (output, buffer, type->length ()); |
6c7a06a3 TT |
438 | } |
439 | ||
440 | /* Convert an octal escape sequence. TYPE is the target character | |
441 | type. The digits of the escape sequence begin at P and extend no | |
442 | farther than LIMIT. The result is written to OUTPUT. Returns a | |
443 | pointer to just after the final digit of the escape sequence. */ | |
444 | ||
e8b2f0d9 TT |
445 | static const char * |
446 | convert_octal (struct type *type, const char *p, | |
447 | const char *limit, struct obstack *output) | |
6c7a06a3 | 448 | { |
30b66ecc | 449 | int i; |
6c7a06a3 TT |
450 | unsigned long value = 0; |
451 | ||
30b66ecc | 452 | for (i = 0; |
b1b60145 | 453 | i < 3 && p < limit && ISDIGIT (*p) && *p != '8' && *p != '9'; |
30b66ecc | 454 | ++i) |
6c7a06a3 | 455 | { |
2b531492 | 456 | value = 8 * value + fromhex (*p); |
6c7a06a3 TT |
457 | ++p; |
458 | } | |
459 | ||
460 | emit_numeric_character (type, value, output); | |
461 | ||
462 | return p; | |
463 | } | |
464 | ||
465 | /* Convert a hex escape sequence. TYPE is the target character type. | |
466 | The digits of the escape sequence begin at P and extend no farther | |
467 | than LIMIT. The result is written to OUTPUT. Returns a pointer to | |
468 | just after the final digit of the escape sequence. */ | |
469 | ||
e8b2f0d9 TT |
470 | static const char * |
471 | convert_hex (struct type *type, const char *p, | |
472 | const char *limit, struct obstack *output) | |
6c7a06a3 TT |
473 | { |
474 | unsigned long value = 0; | |
475 | ||
b1b60145 | 476 | while (p < limit && ISXDIGIT (*p)) |
6c7a06a3 | 477 | { |
2b531492 | 478 | value = 16 * value + fromhex (*p); |
6c7a06a3 TT |
479 | ++p; |
480 | } | |
481 | ||
482 | emit_numeric_character (type, value, output); | |
483 | ||
484 | return p; | |
485 | } | |
486 | ||
487 | #define ADVANCE \ | |
488 | do { \ | |
489 | ++p; \ | |
490 | if (p == limit) \ | |
491 | error (_("Malformed escape sequence")); \ | |
492 | } while (0) | |
493 | ||
494 | /* Convert an escape sequence to a target format. TYPE is the target | |
495 | character type to use, and DEST_CHARSET is the name of the target | |
496 | character set. The backslash of the escape sequence is at *P, and | |
497 | the escape sequence will not extend past LIMIT. The results are | |
498 | written to OUTPUT. Returns a pointer to just past the final | |
499 | character of the escape sequence. */ | |
500 | ||
e8b2f0d9 | 501 | static const char * |
6c7a06a3 | 502 | convert_escape (struct type *type, const char *dest_charset, |
e8b2f0d9 | 503 | const char *p, const char *limit, struct obstack *output) |
6c7a06a3 TT |
504 | { |
505 | /* Skip the backslash. */ | |
506 | ADVANCE; | |
507 | ||
508 | switch (*p) | |
509 | { | |
510 | case '\\': | |
511 | obstack_1grow (output, '\\'); | |
512 | ++p; | |
513 | break; | |
514 | ||
515 | case 'x': | |
516 | ADVANCE; | |
b1b60145 | 517 | if (!ISXDIGIT (*p)) |
6c7a06a3 TT |
518 | error (_("\\x used with no following hex digits.")); |
519 | p = convert_hex (type, p, limit, output); | |
520 | break; | |
521 | ||
522 | case '0': | |
523 | case '1': | |
524 | case '2': | |
525 | case '3': | |
526 | case '4': | |
527 | case '5': | |
528 | case '6': | |
529 | case '7': | |
530 | p = convert_octal (type, p, limit, output); | |
531 | break; | |
532 | ||
533 | case 'u': | |
534 | case 'U': | |
535 | { | |
536 | int length = *p == 'u' ? 4 : 8; | |
c5504eaf | 537 | |
6c7a06a3 | 538 | ADVANCE; |
b1b60145 | 539 | if (!ISXDIGIT (*p)) |
6c7a06a3 TT |
540 | error (_("\\u used with no following hex digits")); |
541 | p = convert_ucn (p, limit, dest_charset, output, length); | |
542 | } | |
543 | } | |
544 | ||
545 | return p; | |
546 | } | |
547 | ||
548 | /* Given a single string from a (C-specific) OP_STRING list, convert | |
549 | it to a target string, handling escape sequences specially. The | |
550 | output is written to OUTPUT. DATA is the input string, which has | |
551 | length LEN. DEST_CHARSET is the name of the target character set, | |
552 | and TYPE is the type of target character to use. */ | |
553 | ||
554 | static void | |
e8b2f0d9 | 555 | parse_one_string (struct obstack *output, const char *data, int len, |
6c7a06a3 TT |
556 | const char *dest_charset, struct type *type) |
557 | { | |
e8b2f0d9 | 558 | const char *limit; |
6c7a06a3 TT |
559 | |
560 | limit = data + len; | |
561 | ||
562 | while (data < limit) | |
563 | { | |
e8b2f0d9 | 564 | const char *p = data; |
c5504eaf | 565 | |
6c7a06a3 TT |
566 | /* Look for next escape, or the end of the input. */ |
567 | while (p < limit && *p != '\\') | |
568 | ++p; | |
569 | /* If we saw a run of characters, convert them all. */ | |
570 | if (p > data) | |
571 | convert_between_encodings (host_charset (), dest_charset, | |
e8b2f0d9 | 572 | (const gdb_byte *) data, p - data, 1, |
aff410f1 | 573 | output, translit_none); |
6c7a06a3 TT |
574 | /* If we saw an escape, convert it. */ |
575 | if (p < limit) | |
576 | p = convert_escape (type, dest_charset, p, limit, output); | |
577 | data = p; | |
578 | } | |
579 | } | |
580 | ||
72d0a711 TT |
581 | namespace expr |
582 | { | |
583 | ||
584 | value * | |
585 | c_string_operation::evaluate (struct type *expect_type, | |
586 | struct expression *exp, | |
587 | enum noside noside) | |
588 | { | |
589 | struct type *type; | |
590 | struct value *result; | |
591 | c_string_type dest_type; | |
592 | const char *dest_charset; | |
593 | int satisfy_expected = 0; | |
594 | ||
595 | auto_obstack output; | |
596 | ||
597 | dest_type = std::get<0> (m_storage); | |
598 | ||
599 | switch (dest_type & ~C_CHAR) | |
600 | { | |
601 | case C_STRING: | |
602 | type = language_string_char_type (exp->language_defn, | |
603 | exp->gdbarch); | |
604 | break; | |
605 | case C_WIDE_STRING: | |
606 | type = lookup_typename (exp->language_defn, "wchar_t", NULL, 0); | |
607 | break; | |
608 | case C_STRING_16: | |
609 | type = lookup_typename (exp->language_defn, "char16_t", NULL, 0); | |
610 | break; | |
611 | case C_STRING_32: | |
612 | type = lookup_typename (exp->language_defn, "char32_t", NULL, 0); | |
613 | break; | |
614 | default: | |
f34652de | 615 | internal_error (_("unhandled c_string_type")); |
72d0a711 TT |
616 | } |
617 | ||
72d0a711 TT |
618 | /* If the caller expects an array of some integral type, |
619 | satisfy them. If something odder is expected, rely on the | |
620 | caller to cast. */ | |
621 | if (expect_type && expect_type->code () == TYPE_CODE_ARRAY) | |
622 | { | |
623 | struct type *element_type | |
27710edb | 624 | = check_typedef (expect_type->target_type ()); |
72d0a711 TT |
625 | |
626 | if (element_type->code () == TYPE_CODE_INT | |
627 | || element_type->code () == TYPE_CODE_CHAR) | |
628 | { | |
629 | type = element_type; | |
630 | satisfy_expected = 1; | |
631 | } | |
632 | } | |
633 | ||
634 | dest_charset = charset_for_string_type (dest_type, exp->gdbarch); | |
635 | ||
0b2b0b82 TT |
636 | for (const std::string &item : std::get<1> (m_storage)) |
637 | parse_one_string (&output, item.c_str (), item.size (), | |
638 | dest_charset, type); | |
72d0a711 TT |
639 | |
640 | if ((dest_type & C_CHAR) != 0) | |
641 | { | |
642 | LONGEST value; | |
643 | ||
df86565b | 644 | if (obstack_object_size (&output) != type->length ()) |
72d0a711 TT |
645 | error (_("Could not convert character " |
646 | "constant to target character set")); | |
647 | value = unpack_long (type, (gdb_byte *) obstack_base (&output)); | |
648 | result = value_from_longest (type, value); | |
649 | } | |
650 | else | |
651 | { | |
baab3753 | 652 | int element_size = type->length (); |
72d0a711 TT |
653 | |
654 | if (satisfy_expected) | |
655 | { | |
656 | LONGEST low_bound, high_bound; | |
72d0a711 TT |
657 | |
658 | if (!get_discrete_bounds (expect_type->index_type (), | |
659 | &low_bound, &high_bound)) | |
660 | { | |
661 | low_bound = 0; | |
df86565b | 662 | high_bound = (expect_type->length () / element_size) - 1; |
72d0a711 TT |
663 | } |
664 | if (obstack_object_size (&output) / element_size | |
665 | > (high_bound - low_bound + 1)) | |
666 | error (_("Too many array elements")); | |
667 | ||
317c3ed9 | 668 | result = value::allocate (expect_type); |
bbe912ba | 669 | memcpy (result->contents_raw ().data (), obstack_base (&output), |
72d0a711 | 670 | obstack_object_size (&output)); |
baab3753 AB |
671 | /* Write the terminating character. */ |
672 | memset (result->contents_raw ().data () + obstack_object_size (&output), | |
673 | 0, element_size); | |
72d0a711 TT |
674 | } |
675 | else | |
baab3753 AB |
676 | result = value_cstring ((const gdb_byte *) obstack_base (&output), |
677 | obstack_object_size (&output) / element_size, | |
72d0a711 TT |
678 | type); |
679 | } | |
680 | return result; | |
681 | } | |
682 | ||
683 | } /* namespace expr */ | |
684 | ||
43cc5389 | 685 | \f |
4be290b2 AB |
686 | /* See c-lang.h. */ |
687 | ||
688 | bool | |
689 | c_is_string_type_p (struct type *type) | |
690 | { | |
691 | type = check_typedef (type); | |
78134374 | 692 | while (type->code () == TYPE_CODE_REF) |
4be290b2 | 693 | { |
27710edb | 694 | type = type->target_type (); |
4be290b2 AB |
695 | type = check_typedef (type); |
696 | } | |
697 | ||
78134374 | 698 | switch (type->code ()) |
4be290b2 AB |
699 | { |
700 | case TYPE_CODE_ARRAY: | |
701 | { | |
702 | /* See if target type looks like a string. */ | |
27710edb | 703 | struct type *array_target_type = type->target_type (); |
df86565b SM |
704 | return (type->length () > 0 |
705 | && array_target_type->length () > 0 | |
4be290b2 AB |
706 | && c_textual_element_type (array_target_type, 0)); |
707 | } | |
708 | case TYPE_CODE_STRING: | |
709 | return true; | |
710 | case TYPE_CODE_PTR: | |
711 | { | |
27710edb | 712 | struct type *element_type = type->target_type (); |
4be290b2 AB |
713 | return c_textual_element_type (element_type, 0); |
714 | } | |
715 | default: | |
716 | break; | |
717 | } | |
718 | ||
719 | return false; | |
720 | } | |
721 | ||
c906108c | 722 | \f |
685419e2 | 723 | |
55fc1623 TT |
724 | /* See c-lang.h. */ |
725 | ||
726 | gdb::unique_xmalloc_ptr<char> | |
727 | c_canonicalize_name (const char *name) | |
728 | { | |
729 | if (strchr (name, ' ') != nullptr | |
730 | || streq (name, "signed") | |
731 | || streq (name, "unsigned")) | |
732 | return cp_canonicalize_string (name); | |
733 | return nullptr; | |
734 | } | |
735 | ||
736 | \f | |
737 | ||
e9667a65 | 738 | void |
685419e2 AC |
739 | c_language_arch_info (struct gdbarch *gdbarch, |
740 | struct language_arch_info *lai) | |
741 | { | |
742 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
c5504eaf | 743 | |
7bea47f0 AB |
744 | /* Helper function to allow shorter lines below. */ |
745 | auto add = [&] (struct type * t) | |
746 | { | |
747 | lai->add_primitive_type (t); | |
748 | }; | |
749 | ||
750 | add (builtin->builtin_int); | |
751 | add (builtin->builtin_long); | |
752 | add (builtin->builtin_short); | |
753 | add (builtin->builtin_char); | |
754 | add (builtin->builtin_float); | |
755 | add (builtin->builtin_double); | |
756 | add (builtin->builtin_void); | |
757 | add (builtin->builtin_long_long); | |
758 | add (builtin->builtin_signed_char); | |
759 | add (builtin->builtin_unsigned_char); | |
760 | add (builtin->builtin_unsigned_short); | |
761 | add (builtin->builtin_unsigned_int); | |
762 | add (builtin->builtin_unsigned_long); | |
763 | add (builtin->builtin_unsigned_long_long); | |
764 | add (builtin->builtin_long_double); | |
765 | add (builtin->builtin_complex); | |
766 | add (builtin->builtin_double_complex); | |
767 | add (builtin->builtin_decfloat); | |
768 | add (builtin->builtin_decdouble); | |
769 | add (builtin->builtin_declong); | |
770 | ||
771 | lai->set_string_char_type (builtin->builtin_char); | |
772 | lai->set_bool_type (builtin->builtin_int); | |
cad351d1 | 773 | } |
685419e2 | 774 | |
0874fd07 AB |
775 | /* Class representing the C language. */ |
776 | ||
777 | class c_language : public language_defn | |
778 | { | |
779 | public: | |
780 | c_language () | |
0e25e767 | 781 | : language_defn (language_c) |
0874fd07 | 782 | { /* Nothing. */ } |
1fb314aa | 783 | |
6f7664a9 AB |
784 | /* See language.h. */ |
785 | ||
786 | const char *name () const override | |
787 | { return "c"; } | |
788 | ||
789 | /* See language.h. */ | |
790 | ||
791 | const char *natural_name () const override | |
792 | { return "C"; } | |
793 | ||
e171d6f1 AB |
794 | /* See language.h. */ |
795 | ||
796 | const std::vector<const char *> &filename_extensions () const override | |
797 | { | |
798 | static const std::vector<const char *> extensions = { ".c" }; | |
799 | return extensions; | |
800 | } | |
801 | ||
1fb314aa AB |
802 | /* See language.h. */ |
803 | void language_arch_info (struct gdbarch *gdbarch, | |
804 | struct language_arch_info *lai) const override | |
805 | { | |
806 | c_language_arch_info (gdbarch, lai); | |
807 | } | |
8e25bafe AB |
808 | |
809 | /* See language.h. */ | |
bdfea17e | 810 | std::unique_ptr<compile_instance> get_compile_instance () const override |
8e25bafe AB |
811 | { |
812 | return c_get_compile_context (); | |
813 | } | |
fbfb0a46 | 814 | |
9a49ad8c AB |
815 | /* See language.h. */ |
816 | std::string compute_program (compile_instance *inst, | |
817 | const char *input, | |
818 | struct gdbarch *gdbarch, | |
819 | const struct block *expr_block, | |
820 | CORE_ADDR expr_pc) const override | |
821 | { | |
822 | return c_compute_program (inst, input, gdbarch, expr_block, expr_pc); | |
823 | } | |
824 | ||
fbfb0a46 AB |
825 | /* See language.h. */ |
826 | ||
97e20099 TT |
827 | bool can_print_type_offsets () const override |
828 | { | |
829 | return true; | |
830 | } | |
831 | ||
832 | /* See language.h. */ | |
833 | ||
fbfb0a46 AB |
834 | void print_type (struct type *type, const char *varstring, |
835 | struct ui_file *stream, int show, int level, | |
836 | const struct type_print_options *flags) const override | |
837 | { | |
1c6fbf42 | 838 | c_print_type (type, varstring, stream, show, level, la_language, flags); |
fbfb0a46 | 839 | } |
d3355e4d AB |
840 | |
841 | /* See language.h. */ | |
842 | ||
843 | bool store_sym_names_in_linkage_form_p () const override | |
844 | { return true; } | |
1ac14a04 AB |
845 | |
846 | /* See language.h. */ | |
847 | ||
848 | enum macro_expansion macro_expansion () const override | |
849 | { return macro_expansion_c; } | |
0874fd07 AB |
850 | }; |
851 | ||
852 | /* Single instance of the C language class. */ | |
853 | ||
854 | static c_language c_language_defn; | |
855 | ||
0874fd07 AB |
856 | /* A class for the C++ language. */ |
857 | ||
858 | class cplus_language : public language_defn | |
859 | { | |
860 | public: | |
861 | cplus_language () | |
0e25e767 | 862 | : language_defn (language_cplus) |
0874fd07 | 863 | { /* Nothing. */ } |
48448202 AB |
864 | |
865 | /* See language.h. */ | |
866 | ||
6f7664a9 AB |
867 | const char *name () const override |
868 | { return "c++"; } | |
869 | ||
870 | /* See language.h. */ | |
871 | ||
872 | const char *natural_name () const override | |
873 | { return "C++"; } | |
874 | ||
21a527df EL |
875 | /* See language.h */ |
876 | const char *get_digit_separator () const override | |
877 | { return "\'"; } | |
878 | ||
6f7664a9 AB |
879 | /* See language.h. */ |
880 | ||
e171d6f1 AB |
881 | const std::vector<const char *> &filename_extensions () const override |
882 | { | |
883 | static const std::vector<const char *> extensions | |
884 | = { ".C", ".cc", ".cp", ".cpp", ".cxx", ".c++" }; | |
885 | return extensions; | |
886 | } | |
887 | ||
888 | /* See language.h. */ | |
889 | ||
48448202 AB |
890 | struct language_pass_by_ref_info pass_by_reference_info |
891 | (struct type *type) const override | |
892 | { | |
893 | return cp_pass_by_reference (type); | |
894 | } | |
1fb314aa AB |
895 | |
896 | /* See language.h. */ | |
897 | void language_arch_info (struct gdbarch *gdbarch, | |
898 | struct language_arch_info *lai) const override | |
899 | { | |
900 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
901 | ||
7bea47f0 AB |
902 | /* Helper function to allow shorter lines below. */ |
903 | auto add = [&] (struct type * t) | |
904 | { | |
905 | lai->add_primitive_type (t); | |
906 | }; | |
907 | ||
908 | add (builtin->builtin_int); | |
909 | add (builtin->builtin_long); | |
910 | add (builtin->builtin_short); | |
911 | add (builtin->builtin_char); | |
912 | add (builtin->builtin_float); | |
913 | add (builtin->builtin_double); | |
914 | add (builtin->builtin_void); | |
915 | add (builtin->builtin_long_long); | |
916 | add (builtin->builtin_signed_char); | |
917 | add (builtin->builtin_unsigned_char); | |
918 | add (builtin->builtin_unsigned_short); | |
919 | add (builtin->builtin_unsigned_int); | |
920 | add (builtin->builtin_unsigned_long); | |
921 | add (builtin->builtin_unsigned_long_long); | |
922 | add (builtin->builtin_long_double); | |
923 | add (builtin->builtin_complex); | |
924 | add (builtin->builtin_double_complex); | |
925 | add (builtin->builtin_bool); | |
926 | add (builtin->builtin_decfloat); | |
927 | add (builtin->builtin_decdouble); | |
928 | add (builtin->builtin_declong); | |
929 | add (builtin->builtin_char16); | |
930 | add (builtin->builtin_char32); | |
931 | add (builtin->builtin_wchar); | |
932 | ||
933 | lai->set_string_char_type (builtin->builtin_char); | |
934 | lai->set_bool_type (builtin->builtin_bool, "bool"); | |
1fb314aa | 935 | } |
54f4ca46 AB |
936 | |
937 | /* See language.h. */ | |
1ab9eefe TT |
938 | struct type *lookup_transparent_type (const char *name, |
939 | domain_search_flags flags) | |
940 | const override | |
54f4ca46 | 941 | { |
1ab9eefe | 942 | return cp_lookup_transparent_type (name, flags); |
54f4ca46 | 943 | } |
8e25bafe AB |
944 | |
945 | /* See language.h. */ | |
bdfea17e | 946 | std::unique_ptr<compile_instance> get_compile_instance () const override |
8e25bafe AB |
947 | { |
948 | return cplus_get_compile_context (); | |
949 | } | |
fb8006fd | 950 | |
9a49ad8c AB |
951 | /* See language.h. */ |
952 | std::string compute_program (compile_instance *inst, | |
953 | const char *input, | |
954 | struct gdbarch *gdbarch, | |
955 | const struct block *expr_block, | |
956 | CORE_ADDR expr_pc) const override | |
957 | { | |
958 | return cplus_compute_program (inst, input, gdbarch, expr_block, expr_pc); | |
959 | } | |
960 | ||
fb8006fd AB |
961 | /* See language.h. */ |
962 | unsigned int search_name_hash (const char *name) const override | |
963 | { | |
964 | return cp_search_name_hash (name); | |
965 | } | |
6f827019 AB |
966 | |
967 | /* See language.h. */ | |
3456e70c TT |
968 | bool sniff_from_mangled_name |
969 | (const char *mangled, | |
970 | gdb::unique_xmalloc_ptr<char> *demangled) const override | |
6f827019 AB |
971 | { |
972 | *demangled = gdb_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); | |
973 | return *demangled != NULL; | |
974 | } | |
fbfb0a46 AB |
975 | |
976 | /* See language.h. */ | |
977 | ||
3456e70c TT |
978 | gdb::unique_xmalloc_ptr<char> demangle_symbol (const char *mangled, |
979 | int options) const override | |
0a50df5d AB |
980 | { |
981 | return gdb_demangle (mangled, options); | |
982 | } | |
983 | ||
984 | /* See language.h. */ | |
985 | ||
97e20099 TT |
986 | bool can_print_type_offsets () const override |
987 | { | |
988 | return true; | |
989 | } | |
990 | ||
991 | /* See language.h. */ | |
992 | ||
fbfb0a46 AB |
993 | void print_type (struct type *type, const char *varstring, |
994 | struct ui_file *stream, int show, int level, | |
995 | const struct type_print_options *flags) const override | |
996 | { | |
1c6fbf42 | 997 | c_print_type (type, varstring, stream, show, level, la_language, flags); |
fbfb0a46 | 998 | } |
f6eee2d0 AB |
999 | |
1000 | /* See language.h. */ | |
1001 | ||
9b0ccb1e | 1002 | CORE_ADDR skip_trampoline (const frame_info_ptr &fi, |
f6eee2d0 AB |
1003 | CORE_ADDR pc) const override |
1004 | { | |
1005 | return cplus_skip_trampoline (fi, pc); | |
1006 | } | |
eff93b4d AB |
1007 | |
1008 | /* See language.h. */ | |
1009 | ||
1010 | char *class_name_from_physname (const char *physname) const override | |
1011 | { | |
1012 | return cp_class_name_from_physname (physname); | |
1013 | } | |
c9debfb9 | 1014 | |
a78a19b1 AB |
1015 | /* See language.h. */ |
1016 | ||
1017 | struct block_symbol lookup_symbol_nonlocal | |
1018 | (const char *name, const struct block *block, | |
ccf41c24 | 1019 | const domain_search_flags domain) const override |
a78a19b1 AB |
1020 | { |
1021 | return cp_lookup_symbol_nonlocal (this, name, block, domain); | |
1022 | } | |
1023 | ||
5bae7c4e AB |
1024 | /* See language.h. */ |
1025 | ||
1026 | const char *name_of_this () const override | |
1027 | { return "this"; } | |
1028 | ||
1ac14a04 AB |
1029 | /* See language.h. */ |
1030 | ||
1031 | enum macro_expansion macro_expansion () const override | |
1032 | { return macro_expansion_c; } | |
1033 | ||
b63a3f3f AB |
1034 | /* See language.h. */ |
1035 | ||
1036 | const struct lang_varobj_ops *varobj_ops () const override | |
1037 | { return &cplus_varobj_ops; } | |
1038 | ||
c9debfb9 AB |
1039 | protected: |
1040 | ||
1041 | /* See language.h. */ | |
1042 | ||
1043 | symbol_name_matcher_ftype *get_symbol_name_matcher_inner | |
1044 | (const lookup_name_info &lookup_name) const override | |
1045 | { | |
1046 | return cp_get_symbol_name_matcher (lookup_name); | |
1047 | } | |
0874fd07 AB |
1048 | }; |
1049 | ||
1050 | /* The single instance of the C++ language class. */ | |
1051 | ||
1052 | static cplus_language cplus_language_defn; | |
1053 | ||
0874fd07 AB |
1054 | /* A class for the ASM language. */ |
1055 | ||
1056 | class asm_language : public language_defn | |
1057 | { | |
1058 | public: | |
1059 | asm_language () | |
0e25e767 | 1060 | : language_defn (language_asm) |
0874fd07 | 1061 | { /* Nothing. */ } |
1fb314aa | 1062 | |
6f7664a9 AB |
1063 | /* See language.h. */ |
1064 | ||
1065 | const char *name () const override | |
1066 | { return "asm"; } | |
1067 | ||
1068 | /* See language.h. */ | |
1069 | ||
1070 | const char *natural_name () const override | |
1071 | { return "Assembly"; } | |
1072 | ||
e171d6f1 AB |
1073 | /* See language.h. */ |
1074 | ||
1075 | const std::vector<const char *> &filename_extensions () const override | |
1076 | { | |
1077 | static const std::vector<const char *> extensions | |
1078 | = { ".s", ".sx", ".S" }; | |
1079 | return extensions; | |
1080 | } | |
1081 | ||
1fb314aa AB |
1082 | /* See language.h. |
1083 | ||
1084 | FIXME: Should this have its own arch info method? */ | |
1085 | void language_arch_info (struct gdbarch *gdbarch, | |
1086 | struct language_arch_info *lai) const override | |
1087 | { | |
1088 | c_language_arch_info (gdbarch, lai); | |
1089 | } | |
fbfb0a46 AB |
1090 | |
1091 | /* See language.h. */ | |
1092 | ||
97e20099 TT |
1093 | bool can_print_type_offsets () const override |
1094 | { | |
1095 | return true; | |
1096 | } | |
1097 | ||
1098 | /* See language.h. */ | |
1099 | ||
fbfb0a46 AB |
1100 | void print_type (struct type *type, const char *varstring, |
1101 | struct ui_file *stream, int show, int level, | |
1102 | const struct type_print_options *flags) const override | |
1103 | { | |
1c6fbf42 | 1104 | c_print_type (type, varstring, stream, show, level, la_language, flags); |
fbfb0a46 | 1105 | } |
d3355e4d AB |
1106 | |
1107 | /* See language.h. */ | |
1108 | ||
1109 | bool store_sym_names_in_linkage_form_p () const override | |
1110 | { return true; } | |
1ac14a04 AB |
1111 | |
1112 | /* See language.h. */ | |
1113 | ||
1114 | enum macro_expansion macro_expansion () const override | |
1115 | { return macro_expansion_c; } | |
0874fd07 AB |
1116 | }; |
1117 | ||
1118 | /* The single instance of the ASM language class. */ | |
1119 | static asm_language asm_language_defn; | |
1120 | ||
0e25e767 AB |
1121 | /* A class for the minimal language. This does not represent a real |
1122 | language. It just provides a minimal support a-la-C that should allow | |
1123 | users to do some simple operations when debugging applications that use | |
20a0e81d JB |
1124 | a language currently not supported by GDB. */ |
1125 | ||
0874fd07 AB |
1126 | class minimal_language : public language_defn |
1127 | { | |
1128 | public: | |
1129 | minimal_language () | |
0e25e767 | 1130 | : language_defn (language_minimal) |
0874fd07 | 1131 | { /* Nothing. */ } |
1fb314aa | 1132 | |
6f7664a9 AB |
1133 | /* See language.h. */ |
1134 | ||
1135 | const char *name () const override | |
1136 | { return "minimal"; } | |
1137 | ||
1138 | /* See language.h. */ | |
1139 | ||
1140 | const char *natural_name () const override | |
1141 | { return "Minimal"; } | |
1142 | ||
1fb314aa AB |
1143 | /* See language.h. */ |
1144 | void language_arch_info (struct gdbarch *gdbarch, | |
1145 | struct language_arch_info *lai) const override | |
1146 | { | |
1147 | c_language_arch_info (gdbarch, lai); | |
1148 | } | |
fbfb0a46 AB |
1149 | |
1150 | /* See language.h. */ | |
1151 | ||
97e20099 TT |
1152 | bool can_print_type_offsets () const override |
1153 | { | |
1154 | return true; | |
1155 | } | |
1156 | ||
1157 | /* See language.h. */ | |
1158 | ||
fbfb0a46 AB |
1159 | void print_type (struct type *type, const char *varstring, |
1160 | struct ui_file *stream, int show, int level, | |
1161 | const struct type_print_options *flags) const override | |
1162 | { | |
1c6fbf42 | 1163 | c_print_type (type, varstring, stream, show, level, la_language, flags); |
fbfb0a46 | 1164 | } |
d3355e4d AB |
1165 | |
1166 | /* See language.h. */ | |
1167 | ||
1168 | bool store_sym_names_in_linkage_form_p () const override | |
1169 | { return true; } | |
1ac14a04 AB |
1170 | |
1171 | /* See language.h. */ | |
1172 | ||
1173 | enum macro_expansion macro_expansion () const override | |
1174 | { return macro_expansion_c; } | |
0874fd07 AB |
1175 | }; |
1176 | ||
1177 | /* The single instance of the minimal language class. */ | |
1178 | static minimal_language minimal_language_defn; |