Commit | Line | Data |
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c906108c | 1 | /* Print values for GDB, the GNU debugger. |
5c1c87f0 | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 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" | |
c906108c SS |
21 | #include "symtab.h" |
22 | #include "gdbtypes.h" | |
23 | #include "value.h" | |
24 | #include "gdbcore.h" | |
25 | #include "gdbcmd.h" | |
26 | #include "target.h" | |
c906108c | 27 | #include "language.h" |
c906108c SS |
28 | #include "annotate.h" |
29 | #include "valprint.h" | |
f69fdf9b | 30 | #include "target-float.h" |
6dddc817 | 31 | #include "extension.h" |
0c3acc09 | 32 | #include "ada-lang.h" |
3b2b8fea TT |
33 | #include "gdb_obstack.h" |
34 | #include "charset.h" | |
3f2f83dd | 35 | #include "typeprint.h" |
3b2b8fea | 36 | #include <ctype.h> |
325fac50 | 37 | #include <algorithm> |
268a13a5 | 38 | #include "gdbsupport/byte-vector.h" |
7d8062de | 39 | #include "cli/cli-option.h" |
0d12e84c | 40 | #include "gdbarch.h" |
c906108c | 41 | |
0d63ecda KS |
42 | /* Maximum number of wchars returned from wchar_iterate. */ |
43 | #define MAX_WCHARS 4 | |
44 | ||
45 | /* A convenience macro to compute the size of a wchar_t buffer containing X | |
46 | characters. */ | |
47 | #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t)) | |
48 | ||
49 | /* Character buffer size saved while iterating over wchars. */ | |
50 | #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS) | |
51 | ||
52 | /* A structure to encapsulate state information from iterated | |
53 | character conversions. */ | |
54 | struct converted_character | |
55 | { | |
56 | /* The number of characters converted. */ | |
57 | int num_chars; | |
58 | ||
59 | /* The result of the conversion. See charset.h for more. */ | |
60 | enum wchar_iterate_result result; | |
61 | ||
62 | /* The (saved) converted character(s). */ | |
63 | gdb_wchar_t chars[WCHAR_BUFLEN_MAX]; | |
64 | ||
65 | /* The first converted target byte. */ | |
66 | const gdb_byte *buf; | |
67 | ||
68 | /* The number of bytes converted. */ | |
69 | size_t buflen; | |
70 | ||
71 | /* How many times this character(s) is repeated. */ | |
72 | int repeat_count; | |
73 | }; | |
74 | ||
e7045703 DE |
75 | /* Command lists for set/show print raw. */ |
76 | struct cmd_list_element *setprintrawlist; | |
77 | struct cmd_list_element *showprintrawlist; | |
0d63ecda | 78 | |
c906108c SS |
79 | /* Prototypes for local functions */ |
80 | ||
777ea8f1 | 81 | static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 82 | int len, int *errptr); |
917317f4 | 83 | |
a14ed312 | 84 | static void set_input_radix_1 (int, unsigned); |
c906108c | 85 | |
a14ed312 | 86 | static void set_output_radix_1 (int, unsigned); |
c906108c | 87 | |
81516450 DE |
88 | static void val_print_type_code_flags (struct type *type, |
89 | const gdb_byte *valaddr, | |
90 | struct ui_file *stream); | |
91 | ||
581e13c1 | 92 | #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ |
2e62ab40 | 93 | #define PRINT_MAX_DEPTH_DEFAULT 20 /* Start print_max_depth off at this value. */ |
79a45b7d TT |
94 | |
95 | struct value_print_options user_print_options = | |
96 | { | |
2a998fc0 DE |
97 | Val_prettyformat_default, /* prettyformat */ |
98 | 0, /* prettyformat_arrays */ | |
99 | 0, /* prettyformat_structs */ | |
79a45b7d TT |
100 | 0, /* vtblprint */ |
101 | 1, /* unionprint */ | |
102 | 1, /* addressprint */ | |
103 | 0, /* objectprint */ | |
104 | PRINT_MAX_DEFAULT, /* print_max */ | |
105 | 10, /* repeat_count_threshold */ | |
106 | 0, /* output_format */ | |
107 | 0, /* format */ | |
108 | 0, /* stop_print_at_null */ | |
79a45b7d TT |
109 | 0, /* print_array_indexes */ |
110 | 0, /* deref_ref */ | |
111 | 1, /* static_field_print */ | |
a6bac58e TT |
112 | 1, /* pascal_static_field_print */ |
113 | 0, /* raw */ | |
9cb709b6 | 114 | 0, /* summary */ |
2e62ab40 | 115 | 1, /* symbol_print */ |
000439d5 TT |
116 | PRINT_MAX_DEPTH_DEFAULT, /* max_depth */ |
117 | 1 /* finish_print */ | |
79a45b7d TT |
118 | }; |
119 | ||
120 | /* Initialize *OPTS to be a copy of the user print options. */ | |
121 | void | |
122 | get_user_print_options (struct value_print_options *opts) | |
123 | { | |
124 | *opts = user_print_options; | |
125 | } | |
126 | ||
127 | /* Initialize *OPTS to be a copy of the user print options, but with | |
2a998fc0 | 128 | pretty-formatting disabled. */ |
79a45b7d | 129 | void |
2a998fc0 | 130 | get_no_prettyformat_print_options (struct value_print_options *opts) |
79a45b7d TT |
131 | { |
132 | *opts = user_print_options; | |
2a998fc0 | 133 | opts->prettyformat = Val_no_prettyformat; |
79a45b7d TT |
134 | } |
135 | ||
136 | /* Initialize *OPTS to be a copy of the user print options, but using | |
137 | FORMAT as the formatting option. */ | |
138 | void | |
139 | get_formatted_print_options (struct value_print_options *opts, | |
140 | char format) | |
141 | { | |
142 | *opts = user_print_options; | |
143 | opts->format = format; | |
144 | } | |
145 | ||
920d2a44 AC |
146 | static void |
147 | show_print_max (struct ui_file *file, int from_tty, | |
148 | struct cmd_list_element *c, const char *value) | |
149 | { | |
3e43a32a MS |
150 | fprintf_filtered (file, |
151 | _("Limit on string chars or array " | |
152 | "elements to print is %s.\n"), | |
920d2a44 AC |
153 | value); |
154 | } | |
155 | ||
c906108c SS |
156 | |
157 | /* Default input and output radixes, and output format letter. */ | |
158 | ||
159 | unsigned input_radix = 10; | |
920d2a44 AC |
160 | static void |
161 | show_input_radix (struct ui_file *file, int from_tty, | |
162 | struct cmd_list_element *c, const char *value) | |
163 | { | |
3e43a32a MS |
164 | fprintf_filtered (file, |
165 | _("Default input radix for entering numbers is %s.\n"), | |
920d2a44 AC |
166 | value); |
167 | } | |
168 | ||
c906108c | 169 | unsigned output_radix = 10; |
920d2a44 AC |
170 | static void |
171 | show_output_radix (struct ui_file *file, int from_tty, | |
172 | struct cmd_list_element *c, const char *value) | |
173 | { | |
3e43a32a MS |
174 | fprintf_filtered (file, |
175 | _("Default output radix for printing of values is %s.\n"), | |
920d2a44 AC |
176 | value); |
177 | } | |
c906108c | 178 | |
e79af960 JB |
179 | /* By default we print arrays without printing the index of each element in |
180 | the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */ | |
181 | ||
e79af960 JB |
182 | static void |
183 | show_print_array_indexes (struct ui_file *file, int from_tty, | |
184 | struct cmd_list_element *c, const char *value) | |
185 | { | |
186 | fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value); | |
187 | } | |
188 | ||
c906108c SS |
189 | /* Print repeat counts if there are more than this many repetitions of an |
190 | element in an array. Referenced by the low level language dependent | |
581e13c1 | 191 | print routines. */ |
c906108c | 192 | |
920d2a44 AC |
193 | static void |
194 | show_repeat_count_threshold (struct ui_file *file, int from_tty, | |
195 | struct cmd_list_element *c, const char *value) | |
196 | { | |
197 | fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"), | |
198 | value); | |
199 | } | |
c906108c | 200 | |
581e13c1 | 201 | /* If nonzero, stops printing of char arrays at first null. */ |
c906108c | 202 | |
920d2a44 AC |
203 | static void |
204 | show_stop_print_at_null (struct ui_file *file, int from_tty, | |
205 | struct cmd_list_element *c, const char *value) | |
206 | { | |
3e43a32a MS |
207 | fprintf_filtered (file, |
208 | _("Printing of char arrays to stop " | |
209 | "at first null char is %s.\n"), | |
920d2a44 AC |
210 | value); |
211 | } | |
c906108c | 212 | |
581e13c1 | 213 | /* Controls pretty printing of structures. */ |
c906108c | 214 | |
920d2a44 | 215 | static void |
2a998fc0 | 216 | show_prettyformat_structs (struct ui_file *file, int from_tty, |
920d2a44 AC |
217 | struct cmd_list_element *c, const char *value) |
218 | { | |
2a998fc0 | 219 | fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value); |
920d2a44 | 220 | } |
c906108c SS |
221 | |
222 | /* Controls pretty printing of arrays. */ | |
223 | ||
920d2a44 | 224 | static void |
2a998fc0 | 225 | show_prettyformat_arrays (struct ui_file *file, int from_tty, |
920d2a44 AC |
226 | struct cmd_list_element *c, const char *value) |
227 | { | |
2a998fc0 | 228 | fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value); |
920d2a44 | 229 | } |
c906108c SS |
230 | |
231 | /* If nonzero, causes unions inside structures or other unions to be | |
581e13c1 | 232 | printed. */ |
c906108c | 233 | |
920d2a44 AC |
234 | static void |
235 | show_unionprint (struct ui_file *file, int from_tty, | |
236 | struct cmd_list_element *c, const char *value) | |
237 | { | |
3e43a32a MS |
238 | fprintf_filtered (file, |
239 | _("Printing of unions interior to structures is %s.\n"), | |
920d2a44 AC |
240 | value); |
241 | } | |
c906108c | 242 | |
581e13c1 | 243 | /* If nonzero, causes machine addresses to be printed in certain contexts. */ |
c906108c | 244 | |
920d2a44 AC |
245 | static void |
246 | show_addressprint (struct ui_file *file, int from_tty, | |
247 | struct cmd_list_element *c, const char *value) | |
248 | { | |
249 | fprintf_filtered (file, _("Printing of addresses is %s.\n"), value); | |
250 | } | |
9cb709b6 TT |
251 | |
252 | static void | |
253 | show_symbol_print (struct ui_file *file, int from_tty, | |
254 | struct cmd_list_element *c, const char *value) | |
255 | { | |
256 | fprintf_filtered (file, | |
257 | _("Printing of symbols when printing pointers is %s.\n"), | |
258 | value); | |
259 | } | |
260 | ||
c906108c | 261 | \f |
c5aa993b | 262 | |
a6bac58e TT |
263 | /* A helper function for val_print. When printing in "summary" mode, |
264 | we want to print scalar arguments, but not aggregate arguments. | |
265 | This function distinguishes between the two. */ | |
266 | ||
6211c335 YQ |
267 | int |
268 | val_print_scalar_type_p (struct type *type) | |
a6bac58e | 269 | { |
f168693b | 270 | type = check_typedef (type); |
aa006118 | 271 | while (TYPE_IS_REFERENCE (type)) |
a6bac58e TT |
272 | { |
273 | type = TYPE_TARGET_TYPE (type); | |
f168693b | 274 | type = check_typedef (type); |
a6bac58e TT |
275 | } |
276 | switch (TYPE_CODE (type)) | |
277 | { | |
278 | case TYPE_CODE_ARRAY: | |
279 | case TYPE_CODE_STRUCT: | |
280 | case TYPE_CODE_UNION: | |
281 | case TYPE_CODE_SET: | |
282 | case TYPE_CODE_STRING: | |
a6bac58e TT |
283 | return 0; |
284 | default: | |
285 | return 1; | |
286 | } | |
287 | } | |
288 | ||
2e62ab40 AB |
289 | /* A helper function for val_print. When printing with limited depth we |
290 | want to print string and scalar arguments, but not aggregate arguments. | |
291 | This function distinguishes between the two. */ | |
292 | ||
293 | static bool | |
294 | val_print_scalar_or_string_type_p (struct type *type, | |
295 | const struct language_defn *language) | |
296 | { | |
297 | return (val_print_scalar_type_p (type) | |
298 | || language->la_is_string_type_p (type)); | |
299 | } | |
300 | ||
a72c8f6a | 301 | /* See its definition in value.h. */ |
0e03807e | 302 | |
a72c8f6a | 303 | int |
0e03807e TT |
304 | valprint_check_validity (struct ui_file *stream, |
305 | struct type *type, | |
6b850546 | 306 | LONGEST embedded_offset, |
0e03807e TT |
307 | const struct value *val) |
308 | { | |
f168693b | 309 | type = check_typedef (type); |
0e03807e | 310 | |
3f2f83dd KB |
311 | if (type_not_associated (type)) |
312 | { | |
313 | val_print_not_associated (stream); | |
314 | return 0; | |
315 | } | |
316 | ||
317 | if (type_not_allocated (type)) | |
318 | { | |
319 | val_print_not_allocated (stream); | |
320 | return 0; | |
321 | } | |
322 | ||
0e03807e TT |
323 | if (TYPE_CODE (type) != TYPE_CODE_UNION |
324 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
325 | && TYPE_CODE (type) != TYPE_CODE_ARRAY) | |
326 | { | |
9a0dc9e3 PA |
327 | if (value_bits_any_optimized_out (val, |
328 | TARGET_CHAR_BIT * embedded_offset, | |
329 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
0e03807e | 330 | { |
901461f8 | 331 | val_print_optimized_out (val, stream); |
0e03807e TT |
332 | return 0; |
333 | } | |
8cf6f0b1 | 334 | |
4e07d55f | 335 | if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset, |
8cf6f0b1 TT |
336 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) |
337 | { | |
3326303b MG |
338 | const int is_ref = TYPE_CODE (type) == TYPE_CODE_REF; |
339 | int ref_is_addressable = 0; | |
340 | ||
341 | if (is_ref) | |
342 | { | |
343 | const struct value *deref_val = coerce_ref_if_computed (val); | |
344 | ||
345 | if (deref_val != NULL) | |
346 | ref_is_addressable = value_lval_const (deref_val) == lval_memory; | |
347 | } | |
348 | ||
349 | if (!is_ref || !ref_is_addressable) | |
350 | fputs_filtered (_("<synthetic pointer>"), stream); | |
351 | ||
352 | /* C++ references should be valid even if they're synthetic. */ | |
353 | return is_ref; | |
8cf6f0b1 | 354 | } |
4e07d55f PA |
355 | |
356 | if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) | |
357 | { | |
358 | val_print_unavailable (stream); | |
359 | return 0; | |
360 | } | |
0e03807e TT |
361 | } |
362 | ||
363 | return 1; | |
364 | } | |
365 | ||
585fdaa1 | 366 | void |
901461f8 | 367 | val_print_optimized_out (const struct value *val, struct ui_file *stream) |
585fdaa1 | 368 | { |
901461f8 | 369 | if (val != NULL && value_lval_const (val) == lval_register) |
782d47df | 370 | val_print_not_saved (stream); |
901461f8 PA |
371 | else |
372 | fprintf_filtered (stream, _("<optimized out>")); | |
585fdaa1 PA |
373 | } |
374 | ||
782d47df PA |
375 | void |
376 | val_print_not_saved (struct ui_file *stream) | |
377 | { | |
378 | fprintf_filtered (stream, _("<not saved>")); | |
379 | } | |
380 | ||
4e07d55f PA |
381 | void |
382 | val_print_unavailable (struct ui_file *stream) | |
383 | { | |
384 | fprintf_filtered (stream, _("<unavailable>")); | |
385 | } | |
386 | ||
8af8e3bc PA |
387 | void |
388 | val_print_invalid_address (struct ui_file *stream) | |
389 | { | |
390 | fprintf_filtered (stream, _("<invalid address>")); | |
391 | } | |
392 | ||
9f436164 SM |
393 | /* Print a pointer based on the type of its target. |
394 | ||
395 | Arguments to this functions are roughly the same as those in | |
396 | generic_val_print. A difference is that ADDRESS is the address to print, | |
397 | with embedded_offset already added. ELTTYPE represents | |
398 | the pointed type after check_typedef. */ | |
399 | ||
400 | static void | |
401 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
402 | CORE_ADDR address, struct ui_file *stream, | |
403 | const struct value_print_options *options) | |
404 | { | |
405 | struct gdbarch *gdbarch = get_type_arch (type); | |
406 | ||
407 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
408 | { | |
409 | /* Try to print what function it points to. */ | |
410 | print_function_pointer_address (options, gdbarch, address, stream); | |
411 | return; | |
412 | } | |
413 | ||
414 | if (options->symbol_print) | |
415 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
416 | else if (options->addressprint) | |
417 | fputs_filtered (paddress (gdbarch, address), stream); | |
418 | } | |
419 | ||
557dbe8a SM |
420 | /* generic_val_print helper for TYPE_CODE_ARRAY. */ |
421 | ||
422 | static void | |
e8b24d9f | 423 | generic_val_print_array (struct type *type, |
00272ec4 TT |
424 | int embedded_offset, CORE_ADDR address, |
425 | struct ui_file *stream, int recurse, | |
e8b24d9f | 426 | struct value *original_value, |
00272ec4 TT |
427 | const struct value_print_options *options, |
428 | const struct | |
429 | generic_val_print_decorations *decorations) | |
557dbe8a SM |
430 | { |
431 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
432 | struct type *elttype = check_typedef (unresolved_elttype); | |
433 | ||
434 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
435 | { | |
436 | LONGEST low_bound, high_bound; | |
437 | ||
438 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
439 | error (_("Could not determine the array high bound")); | |
440 | ||
441 | if (options->prettyformat_arrays) | |
442 | { | |
443 | print_spaces_filtered (2 + 2 * recurse, stream); | |
444 | } | |
445 | ||
00272ec4 | 446 | fputs_filtered (decorations->array_start, stream); |
e8b24d9f | 447 | val_print_array_elements (type, embedded_offset, |
557dbe8a SM |
448 | address, stream, |
449 | recurse, original_value, options, 0); | |
00272ec4 | 450 | fputs_filtered (decorations->array_end, stream); |
557dbe8a SM |
451 | } |
452 | else | |
453 | { | |
454 | /* Array of unspecified length: treat like pointer to first elt. */ | |
455 | print_unpacked_pointer (type, elttype, address + embedded_offset, stream, | |
456 | options); | |
457 | } | |
458 | ||
459 | } | |
460 | ||
81eb921a SM |
461 | /* generic_val_print helper for TYPE_CODE_PTR. */ |
462 | ||
463 | static void | |
e8b24d9f | 464 | generic_val_print_ptr (struct type *type, |
81eb921a | 465 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 466 | struct value *original_value, |
81eb921a SM |
467 | const struct value_print_options *options) |
468 | { | |
3ae385af SM |
469 | struct gdbarch *gdbarch = get_type_arch (type); |
470 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
471 | ||
81eb921a SM |
472 | if (options->format && options->format != 's') |
473 | { | |
e8b24d9f | 474 | val_print_scalar_formatted (type, embedded_offset, |
81eb921a SM |
475 | original_value, options, 0, stream); |
476 | } | |
477 | else | |
478 | { | |
479 | struct type *unresolved_elttype = TYPE_TARGET_TYPE(type); | |
480 | struct type *elttype = check_typedef (unresolved_elttype); | |
e8b24d9f | 481 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af SM |
482 | CORE_ADDR addr = unpack_pointer (type, |
483 | valaddr + embedded_offset * unit_size); | |
81eb921a SM |
484 | |
485 | print_unpacked_pointer (type, elttype, addr, stream, options); | |
486 | } | |
487 | } | |
488 | ||
45000ea2 SM |
489 | |
490 | /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */ | |
491 | ||
492 | static void | |
e8b24d9f | 493 | generic_val_print_memberptr (struct type *type, |
45000ea2 | 494 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 495 | struct value *original_value, |
45000ea2 SM |
496 | const struct value_print_options *options) |
497 | { | |
e8b24d9f | 498 | val_print_scalar_formatted (type, embedded_offset, |
45000ea2 SM |
499 | original_value, options, 0, stream); |
500 | } | |
501 | ||
3326303b MG |
502 | /* Print '@' followed by the address contained in ADDRESS_BUFFER. */ |
503 | ||
504 | static void | |
505 | print_ref_address (struct type *type, const gdb_byte *address_buffer, | |
506 | int embedded_offset, struct ui_file *stream) | |
507 | { | |
508 | struct gdbarch *gdbarch = get_type_arch (type); | |
509 | ||
510 | if (address_buffer != NULL) | |
511 | { | |
512 | CORE_ADDR address | |
513 | = extract_typed_address (address_buffer + embedded_offset, type); | |
514 | ||
515 | fprintf_filtered (stream, "@"); | |
516 | fputs_filtered (paddress (gdbarch, address), stream); | |
517 | } | |
518 | /* Else: we have a non-addressable value, such as a DW_AT_const_value. */ | |
519 | } | |
520 | ||
521 | /* If VAL is addressable, return the value contents buffer of a value that | |
522 | represents a pointer to VAL. Otherwise return NULL. */ | |
523 | ||
524 | static const gdb_byte * | |
525 | get_value_addr_contents (struct value *deref_val) | |
526 | { | |
527 | gdb_assert (deref_val != NULL); | |
528 | ||
529 | if (value_lval_const (deref_val) == lval_memory) | |
530 | return value_contents_for_printing_const (value_addr (deref_val)); | |
531 | else | |
532 | { | |
533 | /* We have a non-addressable value, such as a DW_AT_const_value. */ | |
534 | return NULL; | |
535 | } | |
536 | } | |
537 | ||
aa006118 | 538 | /* generic_val_print helper for TYPE_CODE_{RVALUE_,}REF. */ |
fe43fede SM |
539 | |
540 | static void | |
e8b24d9f | 541 | generic_val_print_ref (struct type *type, |
fe43fede | 542 | int embedded_offset, struct ui_file *stream, int recurse, |
e8b24d9f | 543 | struct value *original_value, |
fe43fede SM |
544 | const struct value_print_options *options) |
545 | { | |
fe43fede | 546 | struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type)); |
3326303b MG |
547 | struct value *deref_val = NULL; |
548 | const int value_is_synthetic | |
549 | = value_bits_synthetic_pointer (original_value, | |
550 | TARGET_CHAR_BIT * embedded_offset, | |
551 | TARGET_CHAR_BIT * TYPE_LENGTH (type)); | |
552 | const int must_coerce_ref = ((options->addressprint && value_is_synthetic) | |
553 | || options->deref_ref); | |
554 | const int type_is_defined = TYPE_CODE (elttype) != TYPE_CODE_UNDEF; | |
e8b24d9f | 555 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3326303b MG |
556 | |
557 | if (must_coerce_ref && type_is_defined) | |
558 | { | |
559 | deref_val = coerce_ref_if_computed (original_value); | |
560 | ||
561 | if (deref_val != NULL) | |
562 | { | |
563 | /* More complicated computed references are not supported. */ | |
564 | gdb_assert (embedded_offset == 0); | |
565 | } | |
566 | else | |
567 | deref_val = value_at (TYPE_TARGET_TYPE (type), | |
568 | unpack_pointer (type, valaddr + embedded_offset)); | |
569 | } | |
570 | /* Else, original_value isn't a synthetic reference or we don't have to print | |
571 | the reference's contents. | |
572 | ||
573 | Notice that for references to TYPE_CODE_STRUCT, 'set print object on' will | |
574 | cause original_value to be a not_lval instead of an lval_computed, | |
575 | which will make value_bits_synthetic_pointer return false. | |
576 | This happens because if options->objectprint is true, c_value_print will | |
577 | overwrite original_value's contents with the result of coercing | |
578 | the reference through value_addr, and then set its type back to | |
579 | TYPE_CODE_REF. In that case we don't have to coerce the reference again; | |
580 | we can simply treat it as non-synthetic and move on. */ | |
fe43fede SM |
581 | |
582 | if (options->addressprint) | |
583 | { | |
3326303b MG |
584 | const gdb_byte *address = (value_is_synthetic && type_is_defined |
585 | ? get_value_addr_contents (deref_val) | |
586 | : valaddr); | |
587 | ||
588 | print_ref_address (type, address, embedded_offset, stream); | |
fe43fede | 589 | |
fe43fede SM |
590 | if (options->deref_ref) |
591 | fputs_filtered (": ", stream); | |
592 | } | |
3326303b | 593 | |
fe43fede SM |
594 | if (options->deref_ref) |
595 | { | |
3326303b MG |
596 | if (type_is_defined) |
597 | common_val_print (deref_val, stream, recurse, options, | |
598 | current_language); | |
fe43fede SM |
599 | else |
600 | fputs_filtered ("???", stream); | |
601 | } | |
602 | } | |
603 | ||
81516450 DE |
604 | /* Helper function for generic_val_print_enum. |
605 | This is also used to print enums in TYPE_CODE_FLAGS values. */ | |
ef0bc0dd SM |
606 | |
607 | static void | |
81516450 DE |
608 | generic_val_print_enum_1 (struct type *type, LONGEST val, |
609 | struct ui_file *stream) | |
ef0bc0dd SM |
610 | { |
611 | unsigned int i; | |
612 | unsigned int len; | |
ef0bc0dd | 613 | |
ef0bc0dd | 614 | len = TYPE_NFIELDS (type); |
ef0bc0dd SM |
615 | for (i = 0; i < len; i++) |
616 | { | |
617 | QUIT; | |
618 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
619 | { | |
620 | break; | |
621 | } | |
622 | } | |
623 | if (i < len) | |
624 | { | |
625 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
626 | } | |
627 | else if (TYPE_FLAG_ENUM (type)) | |
628 | { | |
629 | int first = 1; | |
630 | ||
631 | /* We have a "flag" enum, so we try to decompose it into | |
632 | pieces as appropriate. A flag enum has disjoint | |
633 | constants by definition. */ | |
634 | fputs_filtered ("(", stream); | |
635 | for (i = 0; i < len; ++i) | |
636 | { | |
637 | QUIT; | |
638 | ||
639 | if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0) | |
640 | { | |
641 | if (!first) | |
642 | fputs_filtered (" | ", stream); | |
643 | first = 0; | |
644 | ||
645 | val &= ~TYPE_FIELD_ENUMVAL (type, i); | |
646 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
647 | } | |
648 | } | |
649 | ||
650 | if (first || val != 0) | |
651 | { | |
652 | if (!first) | |
653 | fputs_filtered (" | ", stream); | |
654 | fputs_filtered ("unknown: ", stream); | |
655 | print_longest (stream, 'd', 0, val); | |
656 | } | |
657 | ||
658 | fputs_filtered (")", stream); | |
659 | } | |
660 | else | |
661 | print_longest (stream, 'd', 0, val); | |
662 | } | |
663 | ||
81516450 DE |
664 | /* generic_val_print helper for TYPE_CODE_ENUM. */ |
665 | ||
666 | static void | |
e8b24d9f | 667 | generic_val_print_enum (struct type *type, |
81516450 | 668 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 669 | struct value *original_value, |
81516450 DE |
670 | const struct value_print_options *options) |
671 | { | |
672 | LONGEST val; | |
673 | struct gdbarch *gdbarch = get_type_arch (type); | |
674 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
675 | ||
676 | if (options->format) | |
677 | { | |
e8b24d9f | 678 | val_print_scalar_formatted (type, embedded_offset, |
81516450 | 679 | original_value, options, 0, stream); |
81516450 | 680 | } |
e8b24d9f YQ |
681 | else |
682 | { | |
683 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
684 | ||
685 | val = unpack_long (type, valaddr + embedded_offset * unit_size); | |
81516450 | 686 | |
e8b24d9f YQ |
687 | generic_val_print_enum_1 (type, val, stream); |
688 | } | |
81516450 DE |
689 | } |
690 | ||
d93880bd SM |
691 | /* generic_val_print helper for TYPE_CODE_FLAGS. */ |
692 | ||
693 | static void | |
e8b24d9f | 694 | generic_val_print_flags (struct type *type, |
d93880bd | 695 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 696 | struct value *original_value, |
d93880bd SM |
697 | const struct value_print_options *options) |
698 | ||
699 | { | |
700 | if (options->format) | |
e8b24d9f | 701 | val_print_scalar_formatted (type, embedded_offset, original_value, |
d93880bd SM |
702 | options, 0, stream); |
703 | else | |
e8b24d9f YQ |
704 | { |
705 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
706 | ||
707 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); | |
708 | } | |
d93880bd SM |
709 | } |
710 | ||
4a8c372f SM |
711 | /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */ |
712 | ||
713 | static void | |
e8b24d9f | 714 | generic_val_print_func (struct type *type, |
4a8c372f SM |
715 | int embedded_offset, CORE_ADDR address, |
716 | struct ui_file *stream, | |
e8b24d9f | 717 | struct value *original_value, |
4a8c372f SM |
718 | const struct value_print_options *options) |
719 | { | |
720 | struct gdbarch *gdbarch = get_type_arch (type); | |
721 | ||
722 | if (options->format) | |
723 | { | |
e8b24d9f | 724 | val_print_scalar_formatted (type, embedded_offset, |
4a8c372f SM |
725 | original_value, options, 0, stream); |
726 | } | |
727 | else | |
728 | { | |
729 | /* FIXME, we should consider, at least for ANSI C language, | |
730 | eliminating the distinction made between FUNCs and POINTERs | |
731 | to FUNCs. */ | |
732 | fprintf_filtered (stream, "{"); | |
733 | type_print (type, "", stream, -1); | |
734 | fprintf_filtered (stream, "} "); | |
735 | /* Try to print what function it points to, and its address. */ | |
736 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
737 | } | |
738 | } | |
739 | ||
e5bead4b SM |
740 | /* generic_val_print helper for TYPE_CODE_BOOL. */ |
741 | ||
742 | static void | |
e8b24d9f | 743 | generic_val_print_bool (struct type *type, |
e5bead4b | 744 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 745 | struct value *original_value, |
e5bead4b SM |
746 | const struct value_print_options *options, |
747 | const struct generic_val_print_decorations *decorations) | |
748 | { | |
749 | LONGEST val; | |
3ae385af SM |
750 | struct gdbarch *gdbarch = get_type_arch (type); |
751 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e5bead4b SM |
752 | |
753 | if (options->format || options->output_format) | |
754 | { | |
755 | struct value_print_options opts = *options; | |
756 | opts.format = (options->format ? options->format | |
757 | : options->output_format); | |
e8b24d9f | 758 | val_print_scalar_formatted (type, embedded_offset, |
e5bead4b SM |
759 | original_value, &opts, 0, stream); |
760 | } | |
761 | else | |
762 | { | |
e8b24d9f YQ |
763 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
764 | ||
3ae385af | 765 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
e5bead4b SM |
766 | if (val == 0) |
767 | fputs_filtered (decorations->false_name, stream); | |
768 | else if (val == 1) | |
769 | fputs_filtered (decorations->true_name, stream); | |
770 | else | |
771 | print_longest (stream, 'd', 0, val); | |
772 | } | |
773 | } | |
774 | ||
b21b6342 SM |
775 | /* generic_val_print helper for TYPE_CODE_INT. */ |
776 | ||
777 | static void | |
e8b24d9f | 778 | generic_val_print_int (struct type *type, |
b21b6342 | 779 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 780 | struct value *original_value, |
b21b6342 SM |
781 | const struct value_print_options *options) |
782 | { | |
f12f6bad | 783 | struct value_print_options opts = *options; |
3ae385af | 784 | |
f12f6bad TT |
785 | opts.format = (options->format ? options->format |
786 | : options->output_format); | |
787 | val_print_scalar_formatted (type, embedded_offset, | |
788 | original_value, &opts, 0, stream); | |
b21b6342 SM |
789 | } |
790 | ||
385f5aff SM |
791 | /* generic_val_print helper for TYPE_CODE_CHAR. */ |
792 | ||
793 | static void | |
794 | generic_val_print_char (struct type *type, struct type *unresolved_type, | |
e8b24d9f | 795 | int embedded_offset, |
385f5aff | 796 | struct ui_file *stream, |
e8b24d9f | 797 | struct value *original_value, |
385f5aff SM |
798 | const struct value_print_options *options) |
799 | { | |
800 | LONGEST val; | |
3ae385af SM |
801 | struct gdbarch *gdbarch = get_type_arch (type); |
802 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
385f5aff SM |
803 | |
804 | if (options->format || options->output_format) | |
805 | { | |
806 | struct value_print_options opts = *options; | |
807 | ||
808 | opts.format = (options->format ? options->format | |
809 | : options->output_format); | |
e8b24d9f | 810 | val_print_scalar_formatted (type, embedded_offset, |
385f5aff SM |
811 | original_value, &opts, 0, stream); |
812 | } | |
813 | else | |
814 | { | |
e8b24d9f YQ |
815 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
816 | ||
3ae385af | 817 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
385f5aff SM |
818 | if (TYPE_UNSIGNED (type)) |
819 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
820 | else | |
821 | fprintf_filtered (stream, "%d", (int) val); | |
822 | fputs_filtered (" ", stream); | |
823 | LA_PRINT_CHAR (val, unresolved_type, stream); | |
824 | } | |
825 | } | |
826 | ||
fdf0cbc2 | 827 | /* generic_val_print helper for TYPE_CODE_FLT and TYPE_CODE_DECFLOAT. */ |
7784724b SM |
828 | |
829 | static void | |
e8b24d9f | 830 | generic_val_print_float (struct type *type, |
7784724b | 831 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 832 | struct value *original_value, |
7784724b SM |
833 | const struct value_print_options *options) |
834 | { | |
3ae385af SM |
835 | struct gdbarch *gdbarch = get_type_arch (type); |
836 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
837 | ||
7784724b SM |
838 | if (options->format) |
839 | { | |
e8b24d9f | 840 | val_print_scalar_formatted (type, embedded_offset, |
7784724b SM |
841 | original_value, options, 0, stream); |
842 | } | |
843 | else | |
844 | { | |
e8b24d9f YQ |
845 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
846 | ||
3ae385af | 847 | print_floating (valaddr + embedded_offset * unit_size, type, stream); |
7784724b SM |
848 | } |
849 | } | |
850 | ||
0c87c0bf SM |
851 | /* generic_val_print helper for TYPE_CODE_COMPLEX. */ |
852 | ||
853 | static void | |
e8b24d9f | 854 | generic_val_print_complex (struct type *type, |
0c87c0bf | 855 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 856 | struct value *original_value, |
0c87c0bf SM |
857 | const struct value_print_options *options, |
858 | const struct generic_val_print_decorations | |
859 | *decorations) | |
860 | { | |
3ae385af SM |
861 | struct gdbarch *gdbarch = get_type_arch (type); |
862 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e8b24d9f | 863 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af | 864 | |
0c87c0bf SM |
865 | fprintf_filtered (stream, "%s", decorations->complex_prefix); |
866 | if (options->format) | |
e8b24d9f | 867 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf SM |
868 | embedded_offset, original_value, options, 0, |
869 | stream); | |
870 | else | |
3ae385af SM |
871 | print_floating (valaddr + embedded_offset * unit_size, |
872 | TYPE_TARGET_TYPE (type), stream); | |
0c87c0bf SM |
873 | fprintf_filtered (stream, "%s", decorations->complex_infix); |
874 | if (options->format) | |
e8b24d9f | 875 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf | 876 | embedded_offset |
3ae385af | 877 | + type_length_units (TYPE_TARGET_TYPE (type)), |
0c87c0bf SM |
878 | original_value, options, 0, stream); |
879 | else | |
3ae385af | 880 | print_floating (valaddr + embedded_offset * unit_size |
0c87c0bf SM |
881 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), |
882 | TYPE_TARGET_TYPE (type), stream); | |
883 | fprintf_filtered (stream, "%s", decorations->complex_suffix); | |
884 | } | |
885 | ||
e88acd96 TT |
886 | /* A generic val_print that is suitable for use by language |
887 | implementations of the la_val_print method. This function can | |
888 | handle most type codes, though not all, notably exception | |
889 | TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by | |
890 | the caller. | |
891 | ||
892 | Most arguments are as to val_print. | |
893 | ||
894 | The additional DECORATIONS argument can be used to customize the | |
895 | output in some small, language-specific ways. */ | |
896 | ||
897 | void | |
e8b24d9f | 898 | generic_val_print (struct type *type, |
e88acd96 TT |
899 | int embedded_offset, CORE_ADDR address, |
900 | struct ui_file *stream, int recurse, | |
e8b24d9f | 901 | struct value *original_value, |
e88acd96 TT |
902 | const struct value_print_options *options, |
903 | const struct generic_val_print_decorations *decorations) | |
904 | { | |
e88acd96 | 905 | struct type *unresolved_type = type; |
e88acd96 | 906 | |
f168693b | 907 | type = check_typedef (type); |
e88acd96 TT |
908 | switch (TYPE_CODE (type)) |
909 | { | |
910 | case TYPE_CODE_ARRAY: | |
e8b24d9f | 911 | generic_val_print_array (type, embedded_offset, address, stream, |
00272ec4 | 912 | recurse, original_value, options, decorations); |
9f436164 | 913 | break; |
e88acd96 TT |
914 | |
915 | case TYPE_CODE_MEMBERPTR: | |
e8b24d9f | 916 | generic_val_print_memberptr (type, embedded_offset, stream, |
45000ea2 | 917 | original_value, options); |
e88acd96 TT |
918 | break; |
919 | ||
920 | case TYPE_CODE_PTR: | |
e8b24d9f | 921 | generic_val_print_ptr (type, embedded_offset, stream, |
81eb921a | 922 | original_value, options); |
e88acd96 TT |
923 | break; |
924 | ||
925 | case TYPE_CODE_REF: | |
aa006118 | 926 | case TYPE_CODE_RVALUE_REF: |
e8b24d9f | 927 | generic_val_print_ref (type, embedded_offset, stream, recurse, |
fe43fede | 928 | original_value, options); |
e88acd96 TT |
929 | break; |
930 | ||
931 | case TYPE_CODE_ENUM: | |
e8b24d9f | 932 | generic_val_print_enum (type, embedded_offset, stream, |
ef0bc0dd | 933 | original_value, options); |
e88acd96 TT |
934 | break; |
935 | ||
936 | case TYPE_CODE_FLAGS: | |
e8b24d9f | 937 | generic_val_print_flags (type, embedded_offset, stream, |
d93880bd | 938 | original_value, options); |
e88acd96 TT |
939 | break; |
940 | ||
941 | case TYPE_CODE_FUNC: | |
942 | case TYPE_CODE_METHOD: | |
e8b24d9f | 943 | generic_val_print_func (type, embedded_offset, address, stream, |
4a8c372f | 944 | original_value, options); |
e88acd96 TT |
945 | break; |
946 | ||
947 | case TYPE_CODE_BOOL: | |
e8b24d9f | 948 | generic_val_print_bool (type, embedded_offset, stream, |
e5bead4b | 949 | original_value, options, decorations); |
e88acd96 TT |
950 | break; |
951 | ||
952 | case TYPE_CODE_RANGE: | |
0c9c3474 | 953 | /* FIXME: create_static_range_type does not set the unsigned bit in a |
e88acd96 TT |
954 | range type (I think it probably should copy it from the |
955 | target type), so we won't print values which are too large to | |
956 | fit in a signed integer correctly. */ | |
957 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just | |
958 | print with the target type, though, because the size of our | |
959 | type and the target type might differ). */ | |
960 | ||
961 | /* FALLTHROUGH */ | |
962 | ||
963 | case TYPE_CODE_INT: | |
e8b24d9f | 964 | generic_val_print_int (type, embedded_offset, stream, |
b21b6342 | 965 | original_value, options); |
e88acd96 TT |
966 | break; |
967 | ||
968 | case TYPE_CODE_CHAR: | |
e8b24d9f | 969 | generic_val_print_char (type, unresolved_type, embedded_offset, |
385f5aff | 970 | stream, original_value, options); |
e88acd96 TT |
971 | break; |
972 | ||
973 | case TYPE_CODE_FLT: | |
fdf0cbc2 | 974 | case TYPE_CODE_DECFLOAT: |
e8b24d9f | 975 | generic_val_print_float (type, embedded_offset, stream, |
7784724b | 976 | original_value, options); |
e88acd96 TT |
977 | break; |
978 | ||
e88acd96 TT |
979 | case TYPE_CODE_VOID: |
980 | fputs_filtered (decorations->void_name, stream); | |
981 | break; | |
982 | ||
983 | case TYPE_CODE_ERROR: | |
984 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); | |
985 | break; | |
986 | ||
987 | case TYPE_CODE_UNDEF: | |
a9ff5f12 UW |
988 | /* This happens (without TYPE_STUB set) on systems which don't use |
989 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" | |
990 | and no complete type for struct foo in that file. */ | |
e88acd96 TT |
991 | fprintf_filtered (stream, _("<incomplete type>")); |
992 | break; | |
993 | ||
994 | case TYPE_CODE_COMPLEX: | |
e8b24d9f | 995 | generic_val_print_complex (type, embedded_offset, stream, |
0c87c0bf | 996 | original_value, options, decorations); |
e88acd96 TT |
997 | break; |
998 | ||
999 | case TYPE_CODE_UNION: | |
1000 | case TYPE_CODE_STRUCT: | |
1001 | case TYPE_CODE_METHODPTR: | |
1002 | default: | |
1003 | error (_("Unhandled type code %d in symbol table."), | |
1004 | TYPE_CODE (type)); | |
1005 | } | |
e88acd96 TT |
1006 | } |
1007 | ||
32b72a42 | 1008 | /* Print using the given LANGUAGE the data of type TYPE located at |
e8b24d9f YQ |
1009 | VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came |
1010 | from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto | |
1011 | stdio stream STREAM according to OPTIONS. VAL is the whole object | |
1012 | that came from ADDRESS. | |
32b72a42 PA |
1013 | |
1014 | The language printers will pass down an adjusted EMBEDDED_OFFSET to | |
1015 | further helper subroutines as subfields of TYPE are printed. In | |
e8b24d9f | 1016 | such cases, VAL is passed down unadjusted, so |
32b72a42 PA |
1017 | that VAL can be queried for metadata about the contents data being |
1018 | printed, using EMBEDDED_OFFSET as an offset into VAL's contents | |
1019 | buffer. For example: "has this field been optimized out", or "I'm | |
1020 | printing an object while inspecting a traceframe; has this | |
1021 | particular piece of data been collected?". | |
1022 | ||
1023 | RECURSE indicates the amount of indentation to supply before | |
1024 | continuation lines; this amount is roughly twice the value of | |
35c0084b | 1025 | RECURSE. */ |
32b72a42 | 1026 | |
35c0084b | 1027 | void |
e8b24d9f | 1028 | val_print (struct type *type, LONGEST embedded_offset, |
79a45b7d | 1029 | CORE_ADDR address, struct ui_file *stream, int recurse, |
e8b24d9f | 1030 | struct value *val, |
79a45b7d | 1031 | const struct value_print_options *options, |
d8ca156b | 1032 | const struct language_defn *language) |
c906108c | 1033 | { |
19ca80ba | 1034 | int ret = 0; |
79a45b7d | 1035 | struct value_print_options local_opts = *options; |
c906108c | 1036 | struct type *real_type = check_typedef (type); |
79a45b7d | 1037 | |
2a998fc0 DE |
1038 | if (local_opts.prettyformat == Val_prettyformat_default) |
1039 | local_opts.prettyformat = (local_opts.prettyformat_structs | |
1040 | ? Val_prettyformat : Val_no_prettyformat); | |
c5aa993b | 1041 | |
c906108c SS |
1042 | QUIT; |
1043 | ||
1044 | /* Ensure that the type is complete and not just a stub. If the type is | |
1045 | only a stub and we can't find and substitute its complete type, then | |
1046 | print appropriate string and return. */ | |
1047 | ||
74a9bb82 | 1048 | if (TYPE_STUB (real_type)) |
c906108c | 1049 | { |
0e03807e | 1050 | fprintf_filtered (stream, _("<incomplete type>")); |
35c0084b | 1051 | return; |
c906108c | 1052 | } |
c5aa993b | 1053 | |
0e03807e | 1054 | if (!valprint_check_validity (stream, real_type, embedded_offset, val)) |
35c0084b | 1055 | return; |
0e03807e | 1056 | |
a6bac58e TT |
1057 | if (!options->raw) |
1058 | { | |
668e1674 | 1059 | ret = apply_ext_lang_val_pretty_printer (type, embedded_offset, |
6dddc817 DE |
1060 | address, stream, recurse, |
1061 | val, options, language); | |
a6bac58e | 1062 | if (ret) |
35c0084b | 1063 | return; |
a6bac58e TT |
1064 | } |
1065 | ||
1066 | /* Handle summary mode. If the value is a scalar, print it; | |
1067 | otherwise, print an ellipsis. */ | |
6211c335 | 1068 | if (options->summary && !val_print_scalar_type_p (type)) |
a6bac58e TT |
1069 | { |
1070 | fprintf_filtered (stream, "..."); | |
35c0084b | 1071 | return; |
a6bac58e TT |
1072 | } |
1073 | ||
2e62ab40 AB |
1074 | /* If this value is too deep then don't print it. */ |
1075 | if (!val_print_scalar_or_string_type_p (type, language) | |
1076 | && val_print_check_max_depth (stream, recurse, options, language)) | |
1077 | return; | |
1078 | ||
a70b8144 | 1079 | try |
19ca80ba | 1080 | { |
e8b24d9f | 1081 | language->la_val_print (type, embedded_offset, address, |
d3eab38a TT |
1082 | stream, recurse, val, |
1083 | &local_opts); | |
19ca80ba | 1084 | } |
230d2906 | 1085 | catch (const gdb_exception_error &except) |
492d29ea PA |
1086 | { |
1087 | fprintf_filtered (stream, _("<error reading variable>")); | |
1088 | } | |
c906108c SS |
1089 | } |
1090 | ||
2e62ab40 AB |
1091 | /* See valprint.h. */ |
1092 | ||
1093 | bool | |
1094 | val_print_check_max_depth (struct ui_file *stream, int recurse, | |
1095 | const struct value_print_options *options, | |
1096 | const struct language_defn *language) | |
1097 | { | |
1098 | if (options->max_depth > -1 && recurse >= options->max_depth) | |
1099 | { | |
1100 | gdb_assert (language->la_struct_too_deep_ellipsis != NULL); | |
1101 | fputs_filtered (language->la_struct_too_deep_ellipsis, stream); | |
1102 | return true; | |
1103 | } | |
1104 | ||
1105 | return false; | |
1106 | } | |
1107 | ||
806048c6 | 1108 | /* Check whether the value VAL is printable. Return 1 if it is; |
6501578c YQ |
1109 | return 0 and print an appropriate error message to STREAM according to |
1110 | OPTIONS if it is not. */ | |
c906108c | 1111 | |
806048c6 | 1112 | static int |
6501578c YQ |
1113 | value_check_printable (struct value *val, struct ui_file *stream, |
1114 | const struct value_print_options *options) | |
c906108c SS |
1115 | { |
1116 | if (val == 0) | |
1117 | { | |
806048c6 | 1118 | fprintf_filtered (stream, _("<address of value unknown>")); |
c906108c SS |
1119 | return 0; |
1120 | } | |
806048c6 | 1121 | |
0e03807e | 1122 | if (value_entirely_optimized_out (val)) |
c906108c | 1123 | { |
6211c335 | 1124 | if (options->summary && !val_print_scalar_type_p (value_type (val))) |
6501578c YQ |
1125 | fprintf_filtered (stream, "..."); |
1126 | else | |
901461f8 | 1127 | val_print_optimized_out (val, stream); |
c906108c SS |
1128 | return 0; |
1129 | } | |
806048c6 | 1130 | |
eebc056c AB |
1131 | if (value_entirely_unavailable (val)) |
1132 | { | |
1133 | if (options->summary && !val_print_scalar_type_p (value_type (val))) | |
1134 | fprintf_filtered (stream, "..."); | |
1135 | else | |
1136 | val_print_unavailable (stream); | |
1137 | return 0; | |
1138 | } | |
1139 | ||
bc3b79fd TJB |
1140 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION) |
1141 | { | |
1142 | fprintf_filtered (stream, _("<internal function %s>"), | |
1143 | value_internal_function_name (val)); | |
1144 | return 0; | |
1145 | } | |
1146 | ||
3f2f83dd KB |
1147 | if (type_not_associated (value_type (val))) |
1148 | { | |
1149 | val_print_not_associated (stream); | |
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | if (type_not_allocated (value_type (val))) | |
1154 | { | |
1155 | val_print_not_allocated (stream); | |
1156 | return 0; | |
1157 | } | |
1158 | ||
806048c6 DJ |
1159 | return 1; |
1160 | } | |
1161 | ||
d8ca156b | 1162 | /* Print using the given LANGUAGE the value VAL onto stream STREAM according |
79a45b7d | 1163 | to OPTIONS. |
806048c6 | 1164 | |
806048c6 DJ |
1165 | This is a preferable interface to val_print, above, because it uses |
1166 | GDB's value mechanism. */ | |
1167 | ||
a1f5dd1b | 1168 | void |
79a45b7d TT |
1169 | common_val_print (struct value *val, struct ui_file *stream, int recurse, |
1170 | const struct value_print_options *options, | |
d8ca156b | 1171 | const struct language_defn *language) |
806048c6 | 1172 | { |
6501578c | 1173 | if (!value_check_printable (val, stream, options)) |
a1f5dd1b | 1174 | return; |
806048c6 | 1175 | |
0c3acc09 JB |
1176 | if (language->la_language == language_ada) |
1177 | /* The value might have a dynamic type, which would cause trouble | |
1178 | below when trying to extract the value contents (since the value | |
1179 | size is determined from the type size which is unknown). So | |
1180 | get a fixed representation of our value. */ | |
1181 | val = ada_to_fixed_value (val); | |
1182 | ||
7d45f3df YQ |
1183 | if (value_lazy (val)) |
1184 | value_fetch_lazy (val); | |
1185 | ||
e8b24d9f | 1186 | val_print (value_type (val), |
a1f5dd1b TT |
1187 | value_embedded_offset (val), value_address (val), |
1188 | stream, recurse, | |
1189 | val, options, language); | |
806048c6 DJ |
1190 | } |
1191 | ||
7348c5e1 | 1192 | /* Print on stream STREAM the value VAL according to OPTIONS. The value |
8e069a98 | 1193 | is printed using the current_language syntax. */ |
7348c5e1 | 1194 | |
8e069a98 | 1195 | void |
79a45b7d TT |
1196 | value_print (struct value *val, struct ui_file *stream, |
1197 | const struct value_print_options *options) | |
806048c6 | 1198 | { |
6501578c | 1199 | if (!value_check_printable (val, stream, options)) |
8e069a98 | 1200 | return; |
806048c6 | 1201 | |
a6bac58e TT |
1202 | if (!options->raw) |
1203 | { | |
6dddc817 DE |
1204 | int r |
1205 | = apply_ext_lang_val_pretty_printer (value_type (val), | |
6dddc817 DE |
1206 | value_embedded_offset (val), |
1207 | value_address (val), | |
1208 | stream, 0, | |
1209 | val, options, current_language); | |
a109c7c1 | 1210 | |
a6bac58e | 1211 | if (r) |
8e069a98 | 1212 | return; |
a6bac58e TT |
1213 | } |
1214 | ||
8e069a98 | 1215 | LA_VALUE_PRINT (val, stream, options); |
c906108c SS |
1216 | } |
1217 | ||
81516450 | 1218 | static void |
4f2aea11 MK |
1219 | val_print_type_code_flags (struct type *type, const gdb_byte *valaddr, |
1220 | struct ui_file *stream) | |
1221 | { | |
befae759 | 1222 | ULONGEST val = unpack_long (type, valaddr); |
81516450 DE |
1223 | int field, nfields = TYPE_NFIELDS (type); |
1224 | struct gdbarch *gdbarch = get_type_arch (type); | |
1225 | struct type *bool_type = builtin_type (gdbarch)->builtin_bool; | |
4f2aea11 | 1226 | |
81516450 DE |
1227 | fputs_filtered ("[", stream); |
1228 | for (field = 0; field < nfields; field++) | |
4f2aea11 | 1229 | { |
81516450 | 1230 | if (TYPE_FIELD_NAME (type, field)[0] != '\0') |
4f2aea11 | 1231 | { |
81516450 DE |
1232 | struct type *field_type = TYPE_FIELD_TYPE (type, field); |
1233 | ||
1234 | if (field_type == bool_type | |
1235 | /* We require boolean types here to be one bit wide. This is a | |
1236 | problematic place to notify the user of an internal error | |
1237 | though. Instead just fall through and print the field as an | |
1238 | int. */ | |
1239 | && TYPE_FIELD_BITSIZE (type, field) == 1) | |
1240 | { | |
1241 | if (val & ((ULONGEST)1 << TYPE_FIELD_BITPOS (type, field))) | |
1242 | fprintf_filtered (stream, " %s", | |
1243 | TYPE_FIELD_NAME (type, field)); | |
1244 | } | |
4f2aea11 | 1245 | else |
81516450 DE |
1246 | { |
1247 | unsigned field_len = TYPE_FIELD_BITSIZE (type, field); | |
1248 | ULONGEST field_val | |
1249 | = val >> (TYPE_FIELD_BITPOS (type, field) - field_len + 1); | |
1250 | ||
1251 | if (field_len < sizeof (ULONGEST) * TARGET_CHAR_BIT) | |
1252 | field_val &= ((ULONGEST) 1 << field_len) - 1; | |
1253 | fprintf_filtered (stream, " %s=", | |
1254 | TYPE_FIELD_NAME (type, field)); | |
1255 | if (TYPE_CODE (field_type) == TYPE_CODE_ENUM) | |
1256 | generic_val_print_enum_1 (field_type, field_val, stream); | |
1257 | else | |
1258 | print_longest (stream, 'd', 0, field_val); | |
1259 | } | |
4f2aea11 MK |
1260 | } |
1261 | } | |
81516450 | 1262 | fputs_filtered (" ]", stream); |
19c37f24 | 1263 | } |
ab2188aa PA |
1264 | |
1265 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
1266 | according to OPTIONS and SIZE on STREAM. Format i is not supported | |
1267 | at this level. | |
1268 | ||
1269 | This is how the elements of an array or structure are printed | |
1270 | with a format. */ | |
ab2188aa PA |
1271 | |
1272 | void | |
1273 | val_print_scalar_formatted (struct type *type, | |
e8b24d9f YQ |
1274 | LONGEST embedded_offset, |
1275 | struct value *val, | |
ab2188aa PA |
1276 | const struct value_print_options *options, |
1277 | int size, | |
1278 | struct ui_file *stream) | |
1279 | { | |
3ae385af SM |
1280 | struct gdbarch *arch = get_type_arch (type); |
1281 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
1282 | ||
ab2188aa | 1283 | gdb_assert (val != NULL); |
ab2188aa PA |
1284 | |
1285 | /* If we get here with a string format, try again without it. Go | |
1286 | all the way back to the language printers, which may call us | |
1287 | again. */ | |
1288 | if (options->format == 's') | |
1289 | { | |
1290 | struct value_print_options opts = *options; | |
1291 | opts.format = 0; | |
1292 | opts.deref_ref = 0; | |
e8b24d9f | 1293 | val_print (type, embedded_offset, 0, stream, 0, val, &opts, |
ab2188aa PA |
1294 | current_language); |
1295 | return; | |
1296 | } | |
1297 | ||
e8b24d9f YQ |
1298 | /* value_contents_for_printing fetches all VAL's contents. They are |
1299 | needed to check whether VAL is optimized-out or unavailable | |
1300 | below. */ | |
1301 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
1302 | ||
ab2188aa PA |
1303 | /* A scalar object that does not have all bits available can't be |
1304 | printed, because all bits contribute to its representation. */ | |
9a0dc9e3 PA |
1305 | if (value_bits_any_optimized_out (val, |
1306 | TARGET_CHAR_BIT * embedded_offset, | |
1307 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
901461f8 | 1308 | val_print_optimized_out (val, stream); |
4e07d55f PA |
1309 | else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) |
1310 | val_print_unavailable (stream); | |
ab2188aa | 1311 | else |
3ae385af | 1312 | print_scalar_formatted (valaddr + embedded_offset * unit_size, type, |
ab2188aa | 1313 | options, size, stream); |
4f2aea11 MK |
1314 | } |
1315 | ||
c906108c SS |
1316 | /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. |
1317 | The raison d'etre of this function is to consolidate printing of | |
581e13c1 | 1318 | LONG_LONG's into this one function. The format chars b,h,w,g are |
bb599908 | 1319 | from print_scalar_formatted(). Numbers are printed using C |
581e13c1 | 1320 | format. |
bb599908 PH |
1321 | |
1322 | USE_C_FORMAT means to use C format in all cases. Without it, | |
1323 | 'o' and 'x' format do not include the standard C radix prefix | |
1324 | (leading 0 or 0x). | |
1325 | ||
1326 | Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL | |
1327 | and was intended to request formating according to the current | |
1328 | language and would be used for most integers that GDB prints. The | |
1329 | exceptional cases were things like protocols where the format of | |
1330 | the integer is a protocol thing, not a user-visible thing). The | |
1331 | parameter remains to preserve the information of what things might | |
1332 | be printed with language-specific format, should we ever resurrect | |
581e13c1 | 1333 | that capability. */ |
c906108c SS |
1334 | |
1335 | void | |
bb599908 | 1336 | print_longest (struct ui_file *stream, int format, int use_c_format, |
fba45db2 | 1337 | LONGEST val_long) |
c906108c | 1338 | { |
2bfb72ee AC |
1339 | const char *val; |
1340 | ||
c906108c SS |
1341 | switch (format) |
1342 | { | |
1343 | case 'd': | |
bb599908 | 1344 | val = int_string (val_long, 10, 1, 0, 1); break; |
c906108c | 1345 | case 'u': |
bb599908 | 1346 | val = int_string (val_long, 10, 0, 0, 1); break; |
c906108c | 1347 | case 'x': |
bb599908 | 1348 | val = int_string (val_long, 16, 0, 0, use_c_format); break; |
c906108c | 1349 | case 'b': |
bb599908 | 1350 | val = int_string (val_long, 16, 0, 2, 1); break; |
c906108c | 1351 | case 'h': |
bb599908 | 1352 | val = int_string (val_long, 16, 0, 4, 1); break; |
c906108c | 1353 | case 'w': |
bb599908 | 1354 | val = int_string (val_long, 16, 0, 8, 1); break; |
c906108c | 1355 | case 'g': |
bb599908 | 1356 | val = int_string (val_long, 16, 0, 16, 1); break; |
c906108c SS |
1357 | break; |
1358 | case 'o': | |
bb599908 | 1359 | val = int_string (val_long, 8, 0, 0, use_c_format); break; |
c906108c | 1360 | default: |
3e43a32a MS |
1361 | internal_error (__FILE__, __LINE__, |
1362 | _("failed internal consistency check")); | |
bb599908 | 1363 | } |
2bfb72ee | 1364 | fputs_filtered (val, stream); |
c906108c SS |
1365 | } |
1366 | ||
c906108c SS |
1367 | /* This used to be a macro, but I don't think it is called often enough |
1368 | to merit such treatment. */ | |
1369 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of | |
1370 | arguments to a function, number in a value history, register number, etc.) | |
1371 | where the value must not be larger than can fit in an int. */ | |
1372 | ||
1373 | int | |
fba45db2 | 1374 | longest_to_int (LONGEST arg) |
c906108c | 1375 | { |
581e13c1 | 1376 | /* Let the compiler do the work. */ |
c906108c SS |
1377 | int rtnval = (int) arg; |
1378 | ||
581e13c1 | 1379 | /* Check for overflows or underflows. */ |
c906108c SS |
1380 | if (sizeof (LONGEST) > sizeof (int)) |
1381 | { | |
1382 | if (rtnval != arg) | |
1383 | { | |
8a3fe4f8 | 1384 | error (_("Value out of range.")); |
c906108c SS |
1385 | } |
1386 | } | |
1387 | return (rtnval); | |
1388 | } | |
1389 | ||
fdf0cbc2 UW |
1390 | /* Print a floating point value of floating-point type TYPE, |
1391 | pointed to in GDB by VALADDR, on STREAM. */ | |
c906108c SS |
1392 | |
1393 | void | |
fc1a4b47 | 1394 | print_floating (const gdb_byte *valaddr, struct type *type, |
c84141d6 | 1395 | struct ui_file *stream) |
c906108c | 1396 | { |
f69fdf9b | 1397 | std::string str = target_float_to_string (valaddr, type); |
3b4b2f16 | 1398 | fputs_filtered (str.c_str (), stream); |
7678ef8f TJB |
1399 | } |
1400 | ||
c5aa993b | 1401 | void |
fc1a4b47 | 1402 | print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 | 1403 | unsigned len, enum bfd_endian byte_order, bool zero_pad) |
c906108c | 1404 | { |
fc1a4b47 | 1405 | const gdb_byte *p; |
745b8ca0 | 1406 | unsigned int i; |
c5aa993b | 1407 | int b; |
30a25466 | 1408 | bool seen_a_one = false; |
c906108c SS |
1409 | |
1410 | /* Declared "int" so it will be signed. | |
581e13c1 MS |
1411 | This ensures that right shift will shift in zeros. */ |
1412 | ||
c5aa993b | 1413 | const int mask = 0x080; |
c906108c | 1414 | |
d44e8473 | 1415 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1416 | { |
1417 | for (p = valaddr; | |
1418 | p < valaddr + len; | |
1419 | p++) | |
1420 | { | |
c5aa993b | 1421 | /* Every byte has 8 binary characters; peel off |
581e13c1 MS |
1422 | and print from the MSB end. */ |
1423 | ||
d3abe1c8 | 1424 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1425 | { |
1426 | if (*p & (mask >> i)) | |
30a25466 | 1427 | b = '1'; |
c5aa993b | 1428 | else |
30a25466 | 1429 | b = '0'; |
c5aa993b | 1430 | |
30a25466 TT |
1431 | if (zero_pad || seen_a_one || b == '1') |
1432 | fputc_filtered (b, stream); | |
1433 | if (b == '1') | |
1434 | seen_a_one = true; | |
c5aa993b | 1435 | } |
c906108c SS |
1436 | } |
1437 | } | |
1438 | else | |
1439 | { | |
1440 | for (p = valaddr + len - 1; | |
1441 | p >= valaddr; | |
1442 | p--) | |
1443 | { | |
d3abe1c8 | 1444 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1445 | { |
1446 | if (*p & (mask >> i)) | |
30a25466 | 1447 | b = '1'; |
c5aa993b | 1448 | else |
30a25466 | 1449 | b = '0'; |
c5aa993b | 1450 | |
30a25466 TT |
1451 | if (zero_pad || seen_a_one || b == '1') |
1452 | fputc_filtered (b, stream); | |
1453 | if (b == '1') | |
1454 | seen_a_one = true; | |
c5aa993b | 1455 | } |
c906108c SS |
1456 | } |
1457 | } | |
30a25466 TT |
1458 | |
1459 | /* When not zero-padding, ensure that something is printed when the | |
1460 | input is 0. */ | |
1461 | if (!zero_pad && !seen_a_one) | |
1462 | fputc_filtered ('0', stream); | |
1463 | } | |
1464 | ||
1465 | /* A helper for print_octal_chars that emits a single octal digit, | |
1466 | optionally suppressing it if is zero and updating SEEN_A_ONE. */ | |
1467 | ||
1468 | static void | |
1469 | emit_octal_digit (struct ui_file *stream, bool *seen_a_one, int digit) | |
1470 | { | |
1471 | if (*seen_a_one || digit != 0) | |
1472 | fprintf_filtered (stream, "%o", digit); | |
1473 | if (digit != 0) | |
1474 | *seen_a_one = true; | |
c906108c SS |
1475 | } |
1476 | ||
1477 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
1478 | Print it in octal on stream or format it in buf. */ |
1479 | ||
c906108c | 1480 | void |
fc1a4b47 | 1481 | print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1482 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1483 | { |
fc1a4b47 | 1484 | const gdb_byte *p; |
c906108c | 1485 | unsigned char octa1, octa2, octa3, carry; |
c5aa993b JM |
1486 | int cycle; |
1487 | ||
c906108c SS |
1488 | /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track |
1489 | * the extra bits, which cycle every three bytes: | |
1490 | * | |
1491 | * Byte side: 0 1 2 3 | |
1492 | * | | | | | |
1493 | * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 | | |
1494 | * | |
1495 | * Octal side: 0 1 carry 3 4 carry ... | |
1496 | * | |
1497 | * Cycle number: 0 1 2 | |
1498 | * | |
1499 | * But of course we are printing from the high side, so we have to | |
1500 | * figure out where in the cycle we are so that we end up with no | |
1501 | * left over bits at the end. | |
1502 | */ | |
1503 | #define BITS_IN_OCTAL 3 | |
1504 | #define HIGH_ZERO 0340 | |
d6382fff | 1505 | #define LOW_ZERO 0034 |
c906108c | 1506 | #define CARRY_ZERO 0003 |
d6382fff TT |
1507 | static_assert (HIGH_ZERO + LOW_ZERO + CARRY_ZERO == 0xff, |
1508 | "cycle zero constants are wrong"); | |
c906108c SS |
1509 | #define HIGH_ONE 0200 |
1510 | #define MID_ONE 0160 | |
1511 | #define LOW_ONE 0016 | |
1512 | #define CARRY_ONE 0001 | |
d6382fff TT |
1513 | static_assert (HIGH_ONE + MID_ONE + LOW_ONE + CARRY_ONE == 0xff, |
1514 | "cycle one constants are wrong"); | |
c906108c SS |
1515 | #define HIGH_TWO 0300 |
1516 | #define MID_TWO 0070 | |
1517 | #define LOW_TWO 0007 | |
d6382fff TT |
1518 | static_assert (HIGH_TWO + MID_TWO + LOW_TWO == 0xff, |
1519 | "cycle two constants are wrong"); | |
c906108c SS |
1520 | |
1521 | /* For 32 we start in cycle 2, with two bits and one bit carry; | |
581e13c1 MS |
1522 | for 64 in cycle in cycle 1, with one bit and a two bit carry. */ |
1523 | ||
d3abe1c8 | 1524 | cycle = (len * HOST_CHAR_BIT) % BITS_IN_OCTAL; |
c906108c | 1525 | carry = 0; |
c5aa993b | 1526 | |
bb599908 | 1527 | fputs_filtered ("0", stream); |
30a25466 | 1528 | bool seen_a_one = false; |
d44e8473 | 1529 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1530 | { |
1531 | for (p = valaddr; | |
1532 | p < valaddr + len; | |
1533 | p++) | |
1534 | { | |
c5aa993b JM |
1535 | switch (cycle) |
1536 | { | |
1537 | case 0: | |
581e13c1 MS |
1538 | /* No carry in, carry out two bits. */ |
1539 | ||
c5aa993b JM |
1540 | octa1 = (HIGH_ZERO & *p) >> 5; |
1541 | octa2 = (LOW_ZERO & *p) >> 2; | |
1542 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1543 | emit_octal_digit (stream, &seen_a_one, octa1); |
1544 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1545 | break; |
1546 | ||
1547 | case 1: | |
581e13c1 MS |
1548 | /* Carry in two bits, carry out one bit. */ |
1549 | ||
c5aa993b JM |
1550 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1551 | octa2 = (MID_ONE & *p) >> 4; | |
1552 | octa3 = (LOW_ONE & *p) >> 1; | |
1553 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1554 | emit_octal_digit (stream, &seen_a_one, octa1); |
1555 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1556 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1557 | break; |
1558 | ||
1559 | case 2: | |
581e13c1 MS |
1560 | /* Carry in one bit, no carry out. */ |
1561 | ||
c5aa993b JM |
1562 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1563 | octa2 = (MID_TWO & *p) >> 3; | |
1564 | octa3 = (LOW_TWO & *p); | |
1565 | carry = 0; | |
30a25466 TT |
1566 | emit_octal_digit (stream, &seen_a_one, octa1); |
1567 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1568 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1569 | break; |
1570 | ||
1571 | default: | |
8a3fe4f8 | 1572 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1573 | } |
1574 | ||
1575 | cycle++; | |
1576 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1577 | } |
1578 | } | |
1579 | else | |
1580 | { | |
1581 | for (p = valaddr + len - 1; | |
1582 | p >= valaddr; | |
1583 | p--) | |
1584 | { | |
c5aa993b JM |
1585 | switch (cycle) |
1586 | { | |
1587 | case 0: | |
1588 | /* Carry out, no carry in */ | |
581e13c1 | 1589 | |
c5aa993b JM |
1590 | octa1 = (HIGH_ZERO & *p) >> 5; |
1591 | octa2 = (LOW_ZERO & *p) >> 2; | |
1592 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1593 | emit_octal_digit (stream, &seen_a_one, octa1); |
1594 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1595 | break; |
1596 | ||
1597 | case 1: | |
1598 | /* Carry in, carry out */ | |
581e13c1 | 1599 | |
c5aa993b JM |
1600 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1601 | octa2 = (MID_ONE & *p) >> 4; | |
1602 | octa3 = (LOW_ONE & *p) >> 1; | |
1603 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1604 | emit_octal_digit (stream, &seen_a_one, octa1); |
1605 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1606 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1607 | break; |
1608 | ||
1609 | case 2: | |
1610 | /* Carry in, no carry out */ | |
581e13c1 | 1611 | |
c5aa993b JM |
1612 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1613 | octa2 = (MID_TWO & *p) >> 3; | |
1614 | octa3 = (LOW_TWO & *p); | |
1615 | carry = 0; | |
30a25466 TT |
1616 | emit_octal_digit (stream, &seen_a_one, octa1); |
1617 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1618 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1619 | break; |
1620 | ||
1621 | default: | |
8a3fe4f8 | 1622 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1623 | } |
1624 | ||
1625 | cycle++; | |
1626 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1627 | } |
1628 | } | |
1629 | ||
c906108c SS |
1630 | } |
1631 | ||
4ac0cb1c TT |
1632 | /* Possibly negate the integer represented by BYTES. It contains LEN |
1633 | bytes in the specified byte order. If the integer is negative, | |
1634 | copy it into OUT_VEC, negate it, and return true. Otherwise, do | |
1635 | nothing and return false. */ | |
1636 | ||
1637 | static bool | |
1638 | maybe_negate_by_bytes (const gdb_byte *bytes, unsigned len, | |
1639 | enum bfd_endian byte_order, | |
d5722aa2 | 1640 | gdb::byte_vector *out_vec) |
4ac0cb1c TT |
1641 | { |
1642 | gdb_byte sign_byte; | |
eb77c9df | 1643 | gdb_assert (len > 0); |
4ac0cb1c TT |
1644 | if (byte_order == BFD_ENDIAN_BIG) |
1645 | sign_byte = bytes[0]; | |
1646 | else | |
1647 | sign_byte = bytes[len - 1]; | |
1648 | if ((sign_byte & 0x80) == 0) | |
1649 | return false; | |
1650 | ||
1651 | out_vec->resize (len); | |
1652 | ||
1653 | /* Compute -x == 1 + ~x. */ | |
1654 | if (byte_order == BFD_ENDIAN_LITTLE) | |
1655 | { | |
1656 | unsigned carry = 1; | |
1657 | for (unsigned i = 0; i < len; ++i) | |
1658 | { | |
1659 | unsigned tem = (0xff & ~bytes[i]) + carry; | |
1660 | (*out_vec)[i] = tem & 0xff; | |
1661 | carry = tem / 256; | |
1662 | } | |
1663 | } | |
1664 | else | |
1665 | { | |
1666 | unsigned carry = 1; | |
1667 | for (unsigned i = len; i > 0; --i) | |
1668 | { | |
1669 | unsigned tem = (0xff & ~bytes[i - 1]) + carry; | |
1670 | (*out_vec)[i - 1] = tem & 0xff; | |
1671 | carry = tem / 256; | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | return true; | |
1676 | } | |
1677 | ||
c906108c | 1678 | /* VALADDR points to an integer of LEN bytes. |
581e13c1 MS |
1679 | Print it in decimal on stream or format it in buf. */ |
1680 | ||
c906108c | 1681 | void |
fc1a4b47 | 1682 | print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
4ac0cb1c TT |
1683 | unsigned len, bool is_signed, |
1684 | enum bfd_endian byte_order) | |
c906108c SS |
1685 | { |
1686 | #define TEN 10 | |
c5aa993b | 1687 | #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */ |
c906108c SS |
1688 | #define CARRY_LEFT( x ) ((x) % TEN) |
1689 | #define SHIFT( x ) ((x) << 4) | |
c906108c SS |
1690 | #define LOW_NIBBLE( x ) ( (x) & 0x00F) |
1691 | #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4) | |
1692 | ||
fc1a4b47 | 1693 | const gdb_byte *p; |
c5aa993b JM |
1694 | int carry; |
1695 | int decimal_len; | |
1696 | int i, j, decimal_digits; | |
1697 | int dummy; | |
1698 | int flip; | |
1699 | ||
d5722aa2 | 1700 | gdb::byte_vector negated_bytes; |
4ac0cb1c TT |
1701 | if (is_signed |
1702 | && maybe_negate_by_bytes (valaddr, len, byte_order, &negated_bytes)) | |
1703 | { | |
1704 | fputs_filtered ("-", stream); | |
1705 | valaddr = negated_bytes.data (); | |
1706 | } | |
1707 | ||
c906108c | 1708 | /* Base-ten number is less than twice as many digits |
581e13c1 MS |
1709 | as the base 16 number, which is 2 digits per byte. */ |
1710 | ||
c906108c | 1711 | decimal_len = len * 2 * 2; |
30a25466 | 1712 | std::vector<unsigned char> digits (decimal_len, 0); |
c906108c | 1713 | |
c906108c SS |
1714 | /* Ok, we have an unknown number of bytes of data to be printed in |
1715 | * decimal. | |
1716 | * | |
1717 | * Given a hex number (in nibbles) as XYZ, we start by taking X and | |
1718 | * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply | |
1719 | * the nibbles by 16, add Y and re-decimalize. Repeat with Z. | |
1720 | * | |
1721 | * The trick is that "digits" holds a base-10 number, but sometimes | |
581e13c1 | 1722 | * the individual digits are > 10. |
c906108c SS |
1723 | * |
1724 | * Outer loop is per nibble (hex digit) of input, from MSD end to | |
1725 | * LSD end. | |
1726 | */ | |
c5aa993b | 1727 | decimal_digits = 0; /* Number of decimal digits so far */ |
d44e8473 | 1728 | p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1; |
c906108c | 1729 | flip = 0; |
d44e8473 | 1730 | while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr)) |
c5aa993b | 1731 | { |
c906108c SS |
1732 | /* |
1733 | * Multiply current base-ten number by 16 in place. | |
1734 | * Each digit was between 0 and 9, now is between | |
1735 | * 0 and 144. | |
1736 | */ | |
c5aa993b JM |
1737 | for (j = 0; j < decimal_digits; j++) |
1738 | { | |
1739 | digits[j] = SHIFT (digits[j]); | |
1740 | } | |
1741 | ||
c906108c SS |
1742 | /* Take the next nibble off the input and add it to what |
1743 | * we've got in the LSB position. Bottom 'digit' is now | |
1744 | * between 0 and 159. | |
1745 | * | |
1746 | * "flip" is used to run this loop twice for each byte. | |
1747 | */ | |
c5aa993b JM |
1748 | if (flip == 0) |
1749 | { | |
581e13c1 MS |
1750 | /* Take top nibble. */ |
1751 | ||
c5aa993b JM |
1752 | digits[0] += HIGH_NIBBLE (*p); |
1753 | flip = 1; | |
1754 | } | |
1755 | else | |
1756 | { | |
581e13c1 MS |
1757 | /* Take low nibble and bump our pointer "p". */ |
1758 | ||
c5aa993b | 1759 | digits[0] += LOW_NIBBLE (*p); |
d44e8473 MD |
1760 | if (byte_order == BFD_ENDIAN_BIG) |
1761 | p++; | |
1762 | else | |
1763 | p--; | |
c5aa993b JM |
1764 | flip = 0; |
1765 | } | |
c906108c SS |
1766 | |
1767 | /* Re-decimalize. We have to do this often enough | |
1768 | * that we don't overflow, but once per nibble is | |
1769 | * overkill. Easier this way, though. Note that the | |
1770 | * carry is often larger than 10 (e.g. max initial | |
1771 | * carry out of lowest nibble is 15, could bubble all | |
1772 | * the way up greater than 10). So we have to do | |
1773 | * the carrying beyond the last current digit. | |
1774 | */ | |
1775 | carry = 0; | |
c5aa993b JM |
1776 | for (j = 0; j < decimal_len - 1; j++) |
1777 | { | |
1778 | digits[j] += carry; | |
1779 | ||
1780 | /* "/" won't handle an unsigned char with | |
1781 | * a value that if signed would be negative. | |
1782 | * So extend to longword int via "dummy". | |
1783 | */ | |
1784 | dummy = digits[j]; | |
1785 | carry = CARRY_OUT (dummy); | |
1786 | digits[j] = CARRY_LEFT (dummy); | |
1787 | ||
1788 | if (j >= decimal_digits && carry == 0) | |
1789 | { | |
1790 | /* | |
1791 | * All higher digits are 0 and we | |
1792 | * no longer have a carry. | |
1793 | * | |
1794 | * Note: "j" is 0-based, "decimal_digits" is | |
1795 | * 1-based. | |
1796 | */ | |
1797 | decimal_digits = j + 1; | |
1798 | break; | |
1799 | } | |
1800 | } | |
1801 | } | |
c906108c SS |
1802 | |
1803 | /* Ok, now "digits" is the decimal representation, with | |
581e13c1 MS |
1804 | the "decimal_digits" actual digits. Print! */ |
1805 | ||
30a25466 TT |
1806 | for (i = decimal_digits - 1; i > 0 && digits[i] == 0; --i) |
1807 | ; | |
1808 | ||
1809 | for (; i >= 0; i--) | |
c5aa993b JM |
1810 | { |
1811 | fprintf_filtered (stream, "%1d", digits[i]); | |
1812 | } | |
c906108c SS |
1813 | } |
1814 | ||
1815 | /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ | |
1816 | ||
6b9acc27 | 1817 | void |
fc1a4b47 | 1818 | print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 TT |
1819 | unsigned len, enum bfd_endian byte_order, |
1820 | bool zero_pad) | |
c906108c | 1821 | { |
fc1a4b47 | 1822 | const gdb_byte *p; |
c906108c | 1823 | |
bb599908 | 1824 | fputs_filtered ("0x", stream); |
d44e8473 | 1825 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c | 1826 | { |
30a25466 TT |
1827 | p = valaddr; |
1828 | ||
1829 | if (!zero_pad) | |
1830 | { | |
1831 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1832 | single byte at the end. */ | |
1833 | for (; p < valaddr + len - 1 && !*p; ++p) | |
1834 | ; | |
1835 | } | |
1836 | ||
1837 | const gdb_byte *first = p; | |
1838 | for (; | |
c906108c SS |
1839 | p < valaddr + len; |
1840 | p++) | |
1841 | { | |
30a25466 TT |
1842 | /* When not zero-padding, use a different format for the |
1843 | very first byte printed. */ | |
1844 | if (!zero_pad && p == first) | |
1845 | fprintf_filtered (stream, "%x", *p); | |
1846 | else | |
1847 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1848 | } |
1849 | } | |
1850 | else | |
1851 | { | |
30a25466 TT |
1852 | p = valaddr + len - 1; |
1853 | ||
1854 | if (!zero_pad) | |
1855 | { | |
1856 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1857 | single byte at the end. */ | |
1858 | for (; p >= valaddr + 1 && !*p; --p) | |
1859 | ; | |
1860 | } | |
1861 | ||
1862 | const gdb_byte *first = p; | |
1863 | for (; | |
c906108c SS |
1864 | p >= valaddr; |
1865 | p--) | |
1866 | { | |
30a25466 TT |
1867 | /* When not zero-padding, use a different format for the |
1868 | very first byte printed. */ | |
1869 | if (!zero_pad && p == first) | |
1870 | fprintf_filtered (stream, "%x", *p); | |
1871 | else | |
1872 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1873 | } |
1874 | } | |
c906108c SS |
1875 | } |
1876 | ||
3e43a32a | 1877 | /* VALADDR points to a char integer of LEN bytes. |
581e13c1 | 1878 | Print it out in appropriate language form on stream. |
6b9acc27 JJ |
1879 | Omit any leading zero chars. */ |
1880 | ||
1881 | void | |
6c7a06a3 TT |
1882 | print_char_chars (struct ui_file *stream, struct type *type, |
1883 | const gdb_byte *valaddr, | |
d44e8473 | 1884 | unsigned len, enum bfd_endian byte_order) |
6b9acc27 | 1885 | { |
fc1a4b47 | 1886 | const gdb_byte *p; |
6b9acc27 | 1887 | |
d44e8473 | 1888 | if (byte_order == BFD_ENDIAN_BIG) |
6b9acc27 JJ |
1889 | { |
1890 | p = valaddr; | |
1891 | while (p < valaddr + len - 1 && *p == 0) | |
1892 | ++p; | |
1893 | ||
1894 | while (p < valaddr + len) | |
1895 | { | |
6c7a06a3 | 1896 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1897 | ++p; |
1898 | } | |
1899 | } | |
1900 | else | |
1901 | { | |
1902 | p = valaddr + len - 1; | |
1903 | while (p > valaddr && *p == 0) | |
1904 | --p; | |
1905 | ||
1906 | while (p >= valaddr) | |
1907 | { | |
6c7a06a3 | 1908 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1909 | --p; |
1910 | } | |
1911 | } | |
1912 | } | |
1913 | ||
132c57b4 TT |
1914 | /* Print function pointer with inferior address ADDRESS onto stdio |
1915 | stream STREAM. */ | |
1916 | ||
1917 | void | |
edf0c1b7 TT |
1918 | print_function_pointer_address (const struct value_print_options *options, |
1919 | struct gdbarch *gdbarch, | |
132c57b4 | 1920 | CORE_ADDR address, |
edf0c1b7 | 1921 | struct ui_file *stream) |
132c57b4 TT |
1922 | { |
1923 | CORE_ADDR func_addr | |
1924 | = gdbarch_convert_from_func_ptr_addr (gdbarch, address, | |
8b88a78e | 1925 | current_top_target ()); |
132c57b4 TT |
1926 | |
1927 | /* If the function pointer is represented by a description, print | |
1928 | the address of the description. */ | |
edf0c1b7 | 1929 | if (options->addressprint && func_addr != address) |
132c57b4 TT |
1930 | { |
1931 | fputs_filtered ("@", stream); | |
1932 | fputs_filtered (paddress (gdbarch, address), stream); | |
1933 | fputs_filtered (": ", stream); | |
1934 | } | |
edf0c1b7 | 1935 | print_address_demangle (options, gdbarch, func_addr, stream, demangle); |
132c57b4 TT |
1936 | } |
1937 | ||
1938 | ||
79a45b7d | 1939 | /* Print on STREAM using the given OPTIONS the index for the element |
e79af960 JB |
1940 | at INDEX of an array whose index type is INDEX_TYPE. */ |
1941 | ||
1942 | void | |
1943 | maybe_print_array_index (struct type *index_type, LONGEST index, | |
79a45b7d TT |
1944 | struct ui_file *stream, |
1945 | const struct value_print_options *options) | |
e79af960 JB |
1946 | { |
1947 | struct value *index_value; | |
1948 | ||
79a45b7d | 1949 | if (!options->print_array_indexes) |
e79af960 JB |
1950 | return; |
1951 | ||
1952 | index_value = value_from_longest (index_type, index); | |
1953 | ||
79a45b7d TT |
1954 | LA_PRINT_ARRAY_INDEX (index_value, stream, options); |
1955 | } | |
e79af960 | 1956 | |
c906108c | 1957 | /* Called by various <lang>_val_print routines to print elements of an |
c5aa993b | 1958 | array in the form "<elem1>, <elem2>, <elem3>, ...". |
c906108c | 1959 | |
c5aa993b JM |
1960 | (FIXME?) Assumes array element separator is a comma, which is correct |
1961 | for all languages currently handled. | |
1962 | (FIXME?) Some languages have a notation for repeated array elements, | |
581e13c1 | 1963 | perhaps we should try to use that notation when appropriate. */ |
c906108c SS |
1964 | |
1965 | void | |
490f124f | 1966 | val_print_array_elements (struct type *type, |
e8b24d9f | 1967 | LONGEST embedded_offset, |
a2bd3dcd | 1968 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 1969 | int recurse, |
e8b24d9f | 1970 | struct value *val, |
79a45b7d | 1971 | const struct value_print_options *options, |
fba45db2 | 1972 | unsigned int i) |
c906108c SS |
1973 | { |
1974 | unsigned int things_printed = 0; | |
1975 | unsigned len; | |
aa715135 | 1976 | struct type *elttype, *index_type, *base_index_type; |
c906108c SS |
1977 | unsigned eltlen; |
1978 | /* Position of the array element we are examining to see | |
1979 | whether it is repeated. */ | |
1980 | unsigned int rep1; | |
1981 | /* Number of repetitions we have detected so far. */ | |
1982 | unsigned int reps; | |
dbc98a8b | 1983 | LONGEST low_bound, high_bound; |
aa715135 | 1984 | LONGEST low_pos, high_pos; |
c5aa993b | 1985 | |
c906108c | 1986 | elttype = TYPE_TARGET_TYPE (type); |
3ae385af | 1987 | eltlen = type_length_units (check_typedef (elttype)); |
e79af960 | 1988 | index_type = TYPE_INDEX_TYPE (type); |
c906108c | 1989 | |
dbc98a8b | 1990 | if (get_array_bounds (type, &low_bound, &high_bound)) |
75be741b | 1991 | { |
aa715135 JG |
1992 | if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) |
1993 | base_index_type = TYPE_TARGET_TYPE (index_type); | |
1994 | else | |
1995 | base_index_type = index_type; | |
1996 | ||
1997 | /* Non-contiguous enumerations types can by used as index types | |
1998 | in some languages (e.g. Ada). In this case, the array length | |
1999 | shall be computed from the positions of the first and last | |
2000 | literal in the enumeration type, and not from the values | |
2001 | of these literals. */ | |
2002 | if (!discrete_position (base_index_type, low_bound, &low_pos) | |
2003 | || !discrete_position (base_index_type, high_bound, &high_pos)) | |
2004 | { | |
2005 | warning (_("unable to get positions in array, use bounds instead")); | |
2006 | low_pos = low_bound; | |
2007 | high_pos = high_bound; | |
2008 | } | |
2009 | ||
2010 | /* The array length should normally be HIGH_POS - LOW_POS + 1. | |
75be741b | 2011 | But we have to be a little extra careful, because some languages |
aa715135 | 2012 | such as Ada allow LOW_POS to be greater than HIGH_POS for |
75be741b JB |
2013 | empty arrays. In that situation, the array length is just zero, |
2014 | not negative! */ | |
aa715135 | 2015 | if (low_pos > high_pos) |
75be741b JB |
2016 | len = 0; |
2017 | else | |
aa715135 | 2018 | len = high_pos - low_pos + 1; |
75be741b | 2019 | } |
e936309c JB |
2020 | else |
2021 | { | |
dbc98a8b KW |
2022 | warning (_("unable to get bounds of array, assuming null array")); |
2023 | low_bound = 0; | |
2024 | len = 0; | |
168de233 JB |
2025 | } |
2026 | ||
c906108c SS |
2027 | annotate_array_section_begin (i, elttype); |
2028 | ||
79a45b7d | 2029 | for (; i < len && things_printed < options->print_max; i++) |
c906108c SS |
2030 | { |
2031 | if (i != 0) | |
2032 | { | |
2a998fc0 | 2033 | if (options->prettyformat_arrays) |
c906108c SS |
2034 | { |
2035 | fprintf_filtered (stream, ",\n"); | |
2036 | print_spaces_filtered (2 + 2 * recurse, stream); | |
2037 | } | |
2038 | else | |
2039 | { | |
2040 | fprintf_filtered (stream, ", "); | |
2041 | } | |
2042 | } | |
2043 | wrap_here (n_spaces (2 + 2 * recurse)); | |
dbc98a8b | 2044 | maybe_print_array_index (index_type, i + low_bound, |
79a45b7d | 2045 | stream, options); |
c906108c SS |
2046 | |
2047 | rep1 = i + 1; | |
2048 | reps = 1; | |
35bef4fd TT |
2049 | /* Only check for reps if repeat_count_threshold is not set to |
2050 | UINT_MAX (unlimited). */ | |
2051 | if (options->repeat_count_threshold < UINT_MAX) | |
c906108c | 2052 | { |
35bef4fd | 2053 | while (rep1 < len |
9a0dc9e3 PA |
2054 | && value_contents_eq (val, |
2055 | embedded_offset + i * eltlen, | |
2056 | val, | |
2057 | (embedded_offset | |
2058 | + rep1 * eltlen), | |
2059 | eltlen)) | |
35bef4fd TT |
2060 | { |
2061 | ++reps; | |
2062 | ++rep1; | |
2063 | } | |
c906108c SS |
2064 | } |
2065 | ||
79a45b7d | 2066 | if (reps > options->repeat_count_threshold) |
c906108c | 2067 | { |
e8b24d9f | 2068 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f PA |
2069 | address, stream, recurse + 1, val, options, |
2070 | current_language); | |
c906108c SS |
2071 | annotate_elt_rep (reps); |
2072 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
2073 | annotate_elt_rep_end (); | |
2074 | ||
2075 | i = rep1 - 1; | |
79a45b7d | 2076 | things_printed += options->repeat_count_threshold; |
c906108c SS |
2077 | } |
2078 | else | |
2079 | { | |
e8b24d9f | 2080 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f | 2081 | address, |
0e03807e | 2082 | stream, recurse + 1, val, options, current_language); |
c906108c SS |
2083 | annotate_elt (); |
2084 | things_printed++; | |
2085 | } | |
2086 | } | |
2087 | annotate_array_section_end (); | |
2088 | if (i < len) | |
2089 | { | |
2090 | fprintf_filtered (stream, "..."); | |
2091 | } | |
2092 | } | |
2093 | ||
917317f4 JM |
2094 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
2095 | results in GDB's memory at MYADDR. Returns a count of the bytes | |
9b409511 | 2096 | actually read, and optionally a target_xfer_status value in the |
578d3588 | 2097 | location pointed to by ERRPTR if ERRPTR is non-null. */ |
917317f4 JM |
2098 | |
2099 | /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this | |
2100 | function be eliminated. */ | |
2101 | ||
2102 | static int | |
3e43a32a | 2103 | partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 2104 | int len, int *errptr) |
917317f4 | 2105 | { |
581e13c1 MS |
2106 | int nread; /* Number of bytes actually read. */ |
2107 | int errcode; /* Error from last read. */ | |
917317f4 | 2108 | |
581e13c1 | 2109 | /* First try a complete read. */ |
917317f4 JM |
2110 | errcode = target_read_memory (memaddr, myaddr, len); |
2111 | if (errcode == 0) | |
2112 | { | |
581e13c1 | 2113 | /* Got it all. */ |
917317f4 JM |
2114 | nread = len; |
2115 | } | |
2116 | else | |
2117 | { | |
581e13c1 | 2118 | /* Loop, reading one byte at a time until we get as much as we can. */ |
917317f4 JM |
2119 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) |
2120 | { | |
2121 | errcode = target_read_memory (memaddr++, myaddr++, 1); | |
2122 | } | |
581e13c1 | 2123 | /* If an error, the last read was unsuccessful, so adjust count. */ |
917317f4 JM |
2124 | if (errcode != 0) |
2125 | { | |
2126 | nread--; | |
2127 | } | |
2128 | } | |
578d3588 | 2129 | if (errptr != NULL) |
917317f4 | 2130 | { |
578d3588 | 2131 | *errptr = errcode; |
917317f4 JM |
2132 | } |
2133 | return (nread); | |
2134 | } | |
2135 | ||
b4be9fad TT |
2136 | /* Read a string from the inferior, at ADDR, with LEN characters of |
2137 | WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER | |
2138 | will be set to a newly allocated buffer containing the string, and | |
2139 | BYTES_READ will be set to the number of bytes read. Returns 0 on | |
9b409511 | 2140 | success, or a target_xfer_status on failure. |
ae6a3a4c | 2141 | |
f380848e SA |
2142 | If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters |
2143 | (including eventual NULs in the middle or end of the string). | |
2144 | ||
2145 | If LEN is -1, stops at the first null character (not necessarily | |
2146 | the first null byte) up to a maximum of FETCHLIMIT characters. Set | |
2147 | FETCHLIMIT to UINT_MAX to read as many characters as possible from | |
2148 | the string. | |
ae6a3a4c TJB |
2149 | |
2150 | Unless an exception is thrown, BUFFER will always be allocated, even on | |
2151 | failure. In this case, some characters might have been read before the | |
2152 | failure happened. Check BYTES_READ to recognize this situation. | |
2153 | ||
2154 | Note: There was a FIXME asking to make this code use target_read_string, | |
2155 | but this function is more general (can read past null characters, up to | |
581e13c1 | 2156 | given LEN). Besides, it is used much more often than target_read_string |
ae6a3a4c TJB |
2157 | so it is more tested. Perhaps callers of target_read_string should use |
2158 | this function instead? */ | |
c906108c SS |
2159 | |
2160 | int | |
ae6a3a4c | 2161 | read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit, |
b4be9fad TT |
2162 | enum bfd_endian byte_order, gdb::unique_xmalloc_ptr<gdb_byte> *buffer, |
2163 | int *bytes_read) | |
c906108c | 2164 | { |
ae6a3a4c TJB |
2165 | int errcode; /* Errno returned from bad reads. */ |
2166 | unsigned int nfetch; /* Chars to fetch / chars fetched. */ | |
3e43a32a MS |
2167 | gdb_byte *bufptr; /* Pointer to next available byte in |
2168 | buffer. */ | |
ae6a3a4c | 2169 | |
ae6a3a4c TJB |
2170 | /* Loop until we either have all the characters, or we encounter |
2171 | some error, such as bumping into the end of the address space. */ | |
c906108c | 2172 | |
b4be9fad | 2173 | buffer->reset (nullptr); |
c906108c SS |
2174 | |
2175 | if (len > 0) | |
2176 | { | |
88db67ef YQ |
2177 | /* We want fetchlimit chars, so we might as well read them all in |
2178 | one operation. */ | |
325fac50 | 2179 | unsigned int fetchlen = std::min ((unsigned) len, fetchlimit); |
f380848e | 2180 | |
b4be9fad TT |
2181 | buffer->reset ((gdb_byte *) xmalloc (fetchlen * width)); |
2182 | bufptr = buffer->get (); | |
c906108c | 2183 | |
f380848e | 2184 | nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode) |
c906108c SS |
2185 | / width; |
2186 | addr += nfetch * width; | |
2187 | bufptr += nfetch * width; | |
2188 | } | |
2189 | else if (len == -1) | |
2190 | { | |
2191 | unsigned long bufsize = 0; | |
88db67ef YQ |
2192 | unsigned int chunksize; /* Size of each fetch, in chars. */ |
2193 | int found_nul; /* Non-zero if we found the nul char. */ | |
2194 | gdb_byte *limit; /* First location past end of fetch buffer. */ | |
2195 | ||
2196 | found_nul = 0; | |
2197 | /* We are looking for a NUL terminator to end the fetching, so we | |
2198 | might as well read in blocks that are large enough to be efficient, | |
2199 | but not so large as to be slow if fetchlimit happens to be large. | |
2200 | So we choose the minimum of 8 and fetchlimit. We used to use 200 | |
2201 | instead of 8 but 200 is way too big for remote debugging over a | |
2202 | serial line. */ | |
325fac50 | 2203 | chunksize = std::min (8u, fetchlimit); |
ae6a3a4c | 2204 | |
c906108c SS |
2205 | do |
2206 | { | |
2207 | QUIT; | |
325fac50 | 2208 | nfetch = std::min ((unsigned long) chunksize, fetchlimit - bufsize); |
c906108c | 2209 | |
ae6a3a4c | 2210 | if (*buffer == NULL) |
b4be9fad | 2211 | buffer->reset ((gdb_byte *) xmalloc (nfetch * width)); |
c906108c | 2212 | else |
b4be9fad TT |
2213 | buffer->reset ((gdb_byte *) xrealloc (buffer->release (), |
2214 | (nfetch + bufsize) * width)); | |
c906108c | 2215 | |
b4be9fad | 2216 | bufptr = buffer->get () + bufsize * width; |
c906108c SS |
2217 | bufsize += nfetch; |
2218 | ||
ae6a3a4c | 2219 | /* Read as much as we can. */ |
917317f4 | 2220 | nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode) |
ae6a3a4c | 2221 | / width; |
c906108c | 2222 | |
ae6a3a4c | 2223 | /* Scan this chunk for the null character that terminates the string |
c906108c SS |
2224 | to print. If found, we don't need to fetch any more. Note |
2225 | that bufptr is explicitly left pointing at the next character | |
ae6a3a4c TJB |
2226 | after the null character, or at the next character after the end |
2227 | of the buffer. */ | |
c906108c SS |
2228 | |
2229 | limit = bufptr + nfetch * width; | |
2230 | while (bufptr < limit) | |
2231 | { | |
2232 | unsigned long c; | |
2233 | ||
e17a4113 | 2234 | c = extract_unsigned_integer (bufptr, width, byte_order); |
c906108c SS |
2235 | addr += width; |
2236 | bufptr += width; | |
2237 | if (c == 0) | |
2238 | { | |
2239 | /* We don't care about any error which happened after | |
ae6a3a4c | 2240 | the NUL terminator. */ |
c906108c SS |
2241 | errcode = 0; |
2242 | found_nul = 1; | |
2243 | break; | |
2244 | } | |
2245 | } | |
2246 | } | |
c5aa993b | 2247 | while (errcode == 0 /* no error */ |
b4be9fad | 2248 | && bufptr - buffer->get () < fetchlimit * width /* no overrun */ |
ae6a3a4c | 2249 | && !found_nul); /* haven't found NUL yet */ |
c906108c SS |
2250 | } |
2251 | else | |
ae6a3a4c TJB |
2252 | { /* Length of string is really 0! */ |
2253 | /* We always allocate *buffer. */ | |
b4be9fad TT |
2254 | buffer->reset ((gdb_byte *) xmalloc (1)); |
2255 | bufptr = buffer->get (); | |
c906108c SS |
2256 | errcode = 0; |
2257 | } | |
2258 | ||
2259 | /* bufptr and addr now point immediately beyond the last byte which we | |
2260 | consider part of the string (including a '\0' which ends the string). */ | |
b4be9fad | 2261 | *bytes_read = bufptr - buffer->get (); |
ae6a3a4c TJB |
2262 | |
2263 | QUIT; | |
2264 | ||
ae6a3a4c TJB |
2265 | return errcode; |
2266 | } | |
2267 | ||
3b2b8fea TT |
2268 | /* Return true if print_wchar can display W without resorting to a |
2269 | numeric escape, false otherwise. */ | |
2270 | ||
2271 | static int | |
2272 | wchar_printable (gdb_wchar_t w) | |
2273 | { | |
2274 | return (gdb_iswprint (w) | |
2275 | || w == LCST ('\a') || w == LCST ('\b') | |
2276 | || w == LCST ('\f') || w == LCST ('\n') | |
2277 | || w == LCST ('\r') || w == LCST ('\t') | |
2278 | || w == LCST ('\v')); | |
2279 | } | |
2280 | ||
2281 | /* A helper function that converts the contents of STRING to wide | |
2282 | characters and then appends them to OUTPUT. */ | |
2283 | ||
2284 | static void | |
2285 | append_string_as_wide (const char *string, | |
2286 | struct obstack *output) | |
2287 | { | |
2288 | for (; *string; ++string) | |
2289 | { | |
2290 | gdb_wchar_t w = gdb_btowc (*string); | |
2291 | obstack_grow (output, &w, sizeof (gdb_wchar_t)); | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | /* Print a wide character W to OUTPUT. ORIG is a pointer to the | |
2296 | original (target) bytes representing the character, ORIG_LEN is the | |
2297 | number of valid bytes. WIDTH is the number of bytes in a base | |
2298 | characters of the type. OUTPUT is an obstack to which wide | |
2299 | characters are emitted. QUOTER is a (narrow) character indicating | |
2300 | the style of quotes surrounding the character to be printed. | |
2301 | NEED_ESCAPE is an in/out flag which is used to track numeric | |
2302 | escapes across calls. */ | |
2303 | ||
2304 | static void | |
2305 | print_wchar (gdb_wint_t w, const gdb_byte *orig, | |
2306 | int orig_len, int width, | |
2307 | enum bfd_endian byte_order, | |
2308 | struct obstack *output, | |
2309 | int quoter, int *need_escapep) | |
2310 | { | |
2311 | int need_escape = *need_escapep; | |
2312 | ||
2313 | *need_escapep = 0; | |
3b2b8fea | 2314 | |
95c64f92 YQ |
2315 | /* iswprint implementation on Windows returns 1 for tab character. |
2316 | In order to avoid different printout on this host, we explicitly | |
2317 | use wchar_printable function. */ | |
2318 | switch (w) | |
3b2b8fea | 2319 | { |
95c64f92 YQ |
2320 | case LCST ('\a'): |
2321 | obstack_grow_wstr (output, LCST ("\\a")); | |
2322 | break; | |
2323 | case LCST ('\b'): | |
2324 | obstack_grow_wstr (output, LCST ("\\b")); | |
2325 | break; | |
2326 | case LCST ('\f'): | |
2327 | obstack_grow_wstr (output, LCST ("\\f")); | |
2328 | break; | |
2329 | case LCST ('\n'): | |
2330 | obstack_grow_wstr (output, LCST ("\\n")); | |
2331 | break; | |
2332 | case LCST ('\r'): | |
2333 | obstack_grow_wstr (output, LCST ("\\r")); | |
2334 | break; | |
2335 | case LCST ('\t'): | |
2336 | obstack_grow_wstr (output, LCST ("\\t")); | |
2337 | break; | |
2338 | case LCST ('\v'): | |
2339 | obstack_grow_wstr (output, LCST ("\\v")); | |
2340 | break; | |
2341 | default: | |
3b2b8fea | 2342 | { |
95c64f92 YQ |
2343 | if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w) |
2344 | && w != LCST ('8') | |
2345 | && w != LCST ('9')))) | |
2346 | { | |
2347 | gdb_wchar_t wchar = w; | |
3b2b8fea | 2348 | |
95c64f92 YQ |
2349 | if (w == gdb_btowc (quoter) || w == LCST ('\\')) |
2350 | obstack_grow_wstr (output, LCST ("\\")); | |
2351 | obstack_grow (output, &wchar, sizeof (gdb_wchar_t)); | |
2352 | } | |
2353 | else | |
2354 | { | |
2355 | int i; | |
3b2b8fea | 2356 | |
95c64f92 YQ |
2357 | for (i = 0; i + width <= orig_len; i += width) |
2358 | { | |
2359 | char octal[30]; | |
2360 | ULONGEST value; | |
2361 | ||
2362 | value = extract_unsigned_integer (&orig[i], width, | |
3b2b8fea | 2363 | byte_order); |
95c64f92 YQ |
2364 | /* If the value fits in 3 octal digits, print it that |
2365 | way. Otherwise, print it as a hex escape. */ | |
2366 | if (value <= 0777) | |
2367 | xsnprintf (octal, sizeof (octal), "\\%.3o", | |
2368 | (int) (value & 0777)); | |
2369 | else | |
2370 | xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value); | |
2371 | append_string_as_wide (octal, output); | |
2372 | } | |
2373 | /* If we somehow have extra bytes, print them now. */ | |
2374 | while (i < orig_len) | |
2375 | { | |
2376 | char octal[5]; | |
2377 | ||
2378 | xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff); | |
2379 | append_string_as_wide (octal, output); | |
2380 | ++i; | |
2381 | } | |
2382 | ||
2383 | *need_escapep = 1; | |
2384 | } | |
3b2b8fea TT |
2385 | break; |
2386 | } | |
2387 | } | |
2388 | } | |
2389 | ||
2390 | /* Print the character C on STREAM as part of the contents of a | |
2391 | literal string whose delimiter is QUOTER. ENCODING names the | |
2392 | encoding of C. */ | |
2393 | ||
2394 | void | |
2395 | generic_emit_char (int c, struct type *type, struct ui_file *stream, | |
2396 | int quoter, const char *encoding) | |
2397 | { | |
2398 | enum bfd_endian byte_order | |
2399 | = gdbarch_byte_order (get_type_arch (type)); | |
b926417a | 2400 | gdb_byte *c_buf; |
3b2b8fea TT |
2401 | int need_escape = 0; |
2402 | ||
b926417a TT |
2403 | c_buf = (gdb_byte *) alloca (TYPE_LENGTH (type)); |
2404 | pack_long (c_buf, type, c); | |
3b2b8fea | 2405 | |
b926417a | 2406 | wchar_iterator iter (c_buf, TYPE_LENGTH (type), encoding, TYPE_LENGTH (type)); |
3b2b8fea TT |
2407 | |
2408 | /* This holds the printable form of the wchar_t data. */ | |
8268c778 | 2409 | auto_obstack wchar_buf; |
3b2b8fea TT |
2410 | |
2411 | while (1) | |
2412 | { | |
2413 | int num_chars; | |
2414 | gdb_wchar_t *chars; | |
2415 | const gdb_byte *buf; | |
2416 | size_t buflen; | |
2417 | int print_escape = 1; | |
2418 | enum wchar_iterate_result result; | |
2419 | ||
cda6c55b | 2420 | num_chars = iter.iterate (&result, &chars, &buf, &buflen); |
3b2b8fea TT |
2421 | if (num_chars < 0) |
2422 | break; | |
2423 | if (num_chars > 0) | |
2424 | { | |
2425 | /* If all characters are printable, print them. Otherwise, | |
2426 | we're going to have to print an escape sequence. We | |
2427 | check all characters because we want to print the target | |
2428 | bytes in the escape sequence, and we don't know character | |
2429 | boundaries there. */ | |
2430 | int i; | |
2431 | ||
2432 | print_escape = 0; | |
2433 | for (i = 0; i < num_chars; ++i) | |
2434 | if (!wchar_printable (chars[i])) | |
2435 | { | |
2436 | print_escape = 1; | |
2437 | break; | |
2438 | } | |
2439 | ||
2440 | if (!print_escape) | |
2441 | { | |
2442 | for (i = 0; i < num_chars; ++i) | |
2443 | print_wchar (chars[i], buf, buflen, | |
2444 | TYPE_LENGTH (type), byte_order, | |
2445 | &wchar_buf, quoter, &need_escape); | |
2446 | } | |
2447 | } | |
2448 | ||
2449 | /* This handles the NUM_CHARS == 0 case as well. */ | |
2450 | if (print_escape) | |
2451 | print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type), | |
2452 | byte_order, &wchar_buf, quoter, &need_escape); | |
2453 | } | |
2454 | ||
2455 | /* The output in the host encoding. */ | |
8268c778 | 2456 | auto_obstack output; |
3b2b8fea TT |
2457 | |
2458 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2459 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2460 | obstack_object_size (&wchar_buf), |
fff10684 | 2461 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2462 | obstack_1grow (&output, '\0'); |
2463 | ||
79f33898 | 2464 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2465 | } |
2466 | ||
0d63ecda KS |
2467 | /* Return the repeat count of the next character/byte in ITER, |
2468 | storing the result in VEC. */ | |
2469 | ||
2470 | static int | |
cda6c55b | 2471 | count_next_character (wchar_iterator *iter, |
b01ba14d | 2472 | std::vector<converted_character> *vec) |
0d63ecda KS |
2473 | { |
2474 | struct converted_character *current; | |
2475 | ||
b01ba14d | 2476 | if (vec->empty ()) |
0d63ecda KS |
2477 | { |
2478 | struct converted_character tmp; | |
2479 | gdb_wchar_t *chars; | |
2480 | ||
2481 | tmp.num_chars | |
cda6c55b | 2482 | = iter->iterate (&tmp.result, &chars, &tmp.buf, &tmp.buflen); |
0d63ecda KS |
2483 | if (tmp.num_chars > 0) |
2484 | { | |
2485 | gdb_assert (tmp.num_chars < MAX_WCHARS); | |
2486 | memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t)); | |
2487 | } | |
b01ba14d | 2488 | vec->push_back (tmp); |
0d63ecda KS |
2489 | } |
2490 | ||
b01ba14d | 2491 | current = &vec->back (); |
0d63ecda KS |
2492 | |
2493 | /* Count repeated characters or bytes. */ | |
2494 | current->repeat_count = 1; | |
2495 | if (current->num_chars == -1) | |
2496 | { | |
2497 | /* EOF */ | |
2498 | return -1; | |
2499 | } | |
2500 | else | |
2501 | { | |
2502 | gdb_wchar_t *chars; | |
2503 | struct converted_character d; | |
2504 | int repeat; | |
2505 | ||
2506 | d.repeat_count = 0; | |
2507 | ||
2508 | while (1) | |
2509 | { | |
2510 | /* Get the next character. */ | |
cda6c55b | 2511 | d.num_chars = iter->iterate (&d.result, &chars, &d.buf, &d.buflen); |
0d63ecda KS |
2512 | |
2513 | /* If a character was successfully converted, save the character | |
2514 | into the converted character. */ | |
2515 | if (d.num_chars > 0) | |
2516 | { | |
2517 | gdb_assert (d.num_chars < MAX_WCHARS); | |
2518 | memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars)); | |
2519 | } | |
2520 | ||
2521 | /* Determine if the current character is the same as this | |
2522 | new character. */ | |
2523 | if (d.num_chars == current->num_chars && d.result == current->result) | |
2524 | { | |
2525 | /* There are two cases to consider: | |
2526 | ||
2527 | 1) Equality of converted character (num_chars > 0) | |
2528 | 2) Equality of non-converted character (num_chars == 0) */ | |
2529 | if ((current->num_chars > 0 | |
2530 | && memcmp (current->chars, d.chars, | |
2531 | WCHAR_BUFLEN (current->num_chars)) == 0) | |
2532 | || (current->num_chars == 0 | |
2533 | && current->buflen == d.buflen | |
2534 | && memcmp (current->buf, d.buf, current->buflen) == 0)) | |
2535 | ++current->repeat_count; | |
2536 | else | |
2537 | break; | |
2538 | } | |
2539 | else | |
2540 | break; | |
2541 | } | |
2542 | ||
2543 | /* Push this next converted character onto the result vector. */ | |
2544 | repeat = current->repeat_count; | |
b01ba14d | 2545 | vec->push_back (d); |
0d63ecda KS |
2546 | return repeat; |
2547 | } | |
2548 | } | |
2549 | ||
2550 | /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote | |
2551 | character to use with string output. WIDTH is the size of the output | |
6471e7d2 | 2552 | character type. BYTE_ORDER is the target byte order. OPTIONS |
0d63ecda KS |
2553 | is the user's print options. */ |
2554 | ||
2555 | static void | |
2556 | print_converted_chars_to_obstack (struct obstack *obstack, | |
b01ba14d | 2557 | const std::vector<converted_character> &chars, |
0d63ecda KS |
2558 | int quote_char, int width, |
2559 | enum bfd_endian byte_order, | |
2560 | const struct value_print_options *options) | |
2561 | { | |
2562 | unsigned int idx; | |
b01ba14d | 2563 | const converted_character *elem; |
0d63ecda KS |
2564 | enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last; |
2565 | gdb_wchar_t wide_quote_char = gdb_btowc (quote_char); | |
2566 | int need_escape = 0; | |
2567 | ||
2568 | /* Set the start state. */ | |
2569 | idx = 0; | |
2570 | last = state = START; | |
2571 | elem = NULL; | |
2572 | ||
2573 | while (1) | |
2574 | { | |
2575 | switch (state) | |
2576 | { | |
2577 | case START: | |
2578 | /* Nothing to do. */ | |
2579 | break; | |
2580 | ||
2581 | case SINGLE: | |
2582 | { | |
2583 | int j; | |
2584 | ||
2585 | /* We are outputting a single character | |
2586 | (< options->repeat_count_threshold). */ | |
2587 | ||
2588 | if (last != SINGLE) | |
2589 | { | |
2590 | /* We were outputting some other type of content, so we | |
2591 | must output and a comma and a quote. */ | |
2592 | if (last != START) | |
2593 | obstack_grow_wstr (obstack, LCST (", ")); | |
0d63ecda KS |
2594 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2595 | } | |
2596 | /* Output the character. */ | |
2597 | for (j = 0; j < elem->repeat_count; ++j) | |
2598 | { | |
2599 | if (elem->result == wchar_iterate_ok) | |
2600 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2601 | byte_order, obstack, quote_char, &need_escape); | |
2602 | else | |
2603 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2604 | byte_order, obstack, quote_char, &need_escape); | |
2605 | } | |
2606 | } | |
2607 | break; | |
2608 | ||
2609 | case REPEAT: | |
2610 | { | |
2611 | int j; | |
0d63ecda KS |
2612 | |
2613 | /* We are outputting a character with a repeat count | |
2614 | greater than options->repeat_count_threshold. */ | |
2615 | ||
2616 | if (last == SINGLE) | |
2617 | { | |
2618 | /* We were outputting a single string. Terminate the | |
2619 | string. */ | |
0d63ecda KS |
2620 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2621 | } | |
2622 | if (last != START) | |
2623 | obstack_grow_wstr (obstack, LCST (", ")); | |
2624 | ||
2625 | /* Output the character and repeat string. */ | |
2626 | obstack_grow_wstr (obstack, LCST ("'")); | |
2627 | if (elem->result == wchar_iterate_ok) | |
2628 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2629 | byte_order, obstack, quote_char, &need_escape); | |
2630 | else | |
2631 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2632 | byte_order, obstack, quote_char, &need_escape); | |
2633 | obstack_grow_wstr (obstack, LCST ("'")); | |
528e1572 SM |
2634 | std::string s = string_printf (_(" <repeats %u times>"), |
2635 | elem->repeat_count); | |
0d63ecda KS |
2636 | for (j = 0; s[j]; ++j) |
2637 | { | |
2638 | gdb_wchar_t w = gdb_btowc (s[j]); | |
2639 | obstack_grow (obstack, &w, sizeof (gdb_wchar_t)); | |
2640 | } | |
0d63ecda KS |
2641 | } |
2642 | break; | |
2643 | ||
2644 | case INCOMPLETE: | |
2645 | /* We are outputting an incomplete sequence. */ | |
2646 | if (last == SINGLE) | |
2647 | { | |
2648 | /* If we were outputting a string of SINGLE characters, | |
2649 | terminate the quote. */ | |
0d63ecda KS |
2650 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2651 | } | |
2652 | if (last != START) | |
2653 | obstack_grow_wstr (obstack, LCST (", ")); | |
2654 | ||
2655 | /* Output the incomplete sequence string. */ | |
2656 | obstack_grow_wstr (obstack, LCST ("<incomplete sequence ")); | |
2657 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order, | |
2658 | obstack, 0, &need_escape); | |
2659 | obstack_grow_wstr (obstack, LCST (">")); | |
2660 | ||
2661 | /* We do not attempt to outupt anything after this. */ | |
2662 | state = FINISH; | |
2663 | break; | |
2664 | ||
2665 | case FINISH: | |
2666 | /* All done. If we were outputting a string of SINGLE | |
2667 | characters, the string must be terminated. Otherwise, | |
2668 | REPEAT and INCOMPLETE are always left properly terminated. */ | |
2669 | if (last == SINGLE) | |
e93a8774 | 2670 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
0d63ecda KS |
2671 | |
2672 | return; | |
2673 | } | |
2674 | ||
2675 | /* Get the next element and state. */ | |
2676 | last = state; | |
2677 | if (state != FINISH) | |
2678 | { | |
b01ba14d | 2679 | elem = &chars[idx++]; |
0d63ecda KS |
2680 | switch (elem->result) |
2681 | { | |
2682 | case wchar_iterate_ok: | |
2683 | case wchar_iterate_invalid: | |
2684 | if (elem->repeat_count > options->repeat_count_threshold) | |
2685 | state = REPEAT; | |
2686 | else | |
2687 | state = SINGLE; | |
2688 | break; | |
2689 | ||
2690 | case wchar_iterate_incomplete: | |
2691 | state = INCOMPLETE; | |
2692 | break; | |
2693 | ||
2694 | case wchar_iterate_eof: | |
2695 | state = FINISH; | |
2696 | break; | |
2697 | } | |
2698 | } | |
2699 | } | |
2700 | } | |
2701 | ||
3b2b8fea TT |
2702 | /* Print the character string STRING, printing at most LENGTH |
2703 | characters. LENGTH is -1 if the string is nul terminated. TYPE is | |
2704 | the type of each character. OPTIONS holds the printing options; | |
2705 | printing stops early if the number hits print_max; repeat counts | |
2706 | are printed as appropriate. Print ellipses at the end if we had to | |
2707 | stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
2708 | QUOTE_CHAR is the character to print at each end of the string. If | |
2709 | C_STYLE_TERMINATOR is true, and the last character is 0, then it is | |
2710 | omitted. */ | |
2711 | ||
2712 | void | |
2713 | generic_printstr (struct ui_file *stream, struct type *type, | |
2714 | const gdb_byte *string, unsigned int length, | |
2715 | const char *encoding, int force_ellipses, | |
2716 | int quote_char, int c_style_terminator, | |
2717 | const struct value_print_options *options) | |
2718 | { | |
2719 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); | |
2720 | unsigned int i; | |
3b2b8fea | 2721 | int width = TYPE_LENGTH (type); |
3b2b8fea | 2722 | int finished = 0; |
0d63ecda | 2723 | struct converted_character *last; |
3b2b8fea TT |
2724 | |
2725 | if (length == -1) | |
2726 | { | |
2727 | unsigned long current_char = 1; | |
2728 | ||
2729 | for (i = 0; current_char; ++i) | |
2730 | { | |
2731 | QUIT; | |
2732 | current_char = extract_unsigned_integer (string + i * width, | |
2733 | width, byte_order); | |
2734 | } | |
2735 | length = i; | |
2736 | } | |
2737 | ||
2738 | /* If the string was not truncated due to `set print elements', and | |
2739 | the last byte of it is a null, we don't print that, in | |
2740 | traditional C style. */ | |
2741 | if (c_style_terminator | |
2742 | && !force_ellipses | |
2743 | && length > 0 | |
2744 | && (extract_unsigned_integer (string + (length - 1) * width, | |
2745 | width, byte_order) == 0)) | |
2746 | length--; | |
2747 | ||
2748 | if (length == 0) | |
2749 | { | |
2750 | fputs_filtered ("\"\"", stream); | |
2751 | return; | |
2752 | } | |
2753 | ||
2754 | /* Arrange to iterate over the characters, in wchar_t form. */ | |
cda6c55b | 2755 | wchar_iterator iter (string, length * width, encoding, width); |
b01ba14d | 2756 | std::vector<converted_character> converted_chars; |
3b2b8fea | 2757 | |
0d63ecda KS |
2758 | /* Convert characters until the string is over or the maximum |
2759 | number of printed characters has been reached. */ | |
2760 | i = 0; | |
2761 | while (i < options->print_max) | |
3b2b8fea | 2762 | { |
0d63ecda | 2763 | int r; |
3b2b8fea TT |
2764 | |
2765 | QUIT; | |
2766 | ||
0d63ecda | 2767 | /* Grab the next character and repeat count. */ |
cda6c55b | 2768 | r = count_next_character (&iter, &converted_chars); |
3b2b8fea | 2769 | |
0d63ecda KS |
2770 | /* If less than zero, the end of the input string was reached. */ |
2771 | if (r < 0) | |
2772 | break; | |
3b2b8fea | 2773 | |
0d63ecda KS |
2774 | /* Otherwise, add the count to the total print count and get |
2775 | the next character. */ | |
2776 | i += r; | |
2777 | } | |
3b2b8fea | 2778 | |
0d63ecda KS |
2779 | /* Get the last element and determine if the entire string was |
2780 | processed. */ | |
b01ba14d | 2781 | last = &converted_chars.back (); |
0d63ecda | 2782 | finished = (last->result == wchar_iterate_eof); |
3b2b8fea | 2783 | |
0d63ecda KS |
2784 | /* Ensure that CONVERTED_CHARS is terminated. */ |
2785 | last->result = wchar_iterate_eof; | |
3b2b8fea | 2786 | |
0d63ecda KS |
2787 | /* WCHAR_BUF is the obstack we use to represent the string in |
2788 | wchar_t form. */ | |
8268c778 | 2789 | auto_obstack wchar_buf; |
3b2b8fea | 2790 | |
0d63ecda KS |
2791 | /* Print the output string to the obstack. */ |
2792 | print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char, | |
2793 | width, byte_order, options); | |
3b2b8fea TT |
2794 | |
2795 | if (force_ellipses || !finished) | |
2796 | obstack_grow_wstr (&wchar_buf, LCST ("...")); | |
2797 | ||
2798 | /* OUTPUT is where we collect `char's for printing. */ | |
8268c778 | 2799 | auto_obstack output; |
3b2b8fea TT |
2800 | |
2801 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2802 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2803 | obstack_object_size (&wchar_buf), |
fff10684 | 2804 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2805 | obstack_1grow (&output, '\0'); |
2806 | ||
79f33898 | 2807 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2808 | } |
2809 | ||
ae6a3a4c TJB |
2810 | /* Print a string from the inferior, starting at ADDR and printing up to LEN |
2811 | characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing | |
2812 | stops at the first null byte, otherwise printing proceeds (including null | |
2813 | bytes) until either print_max or LEN characters have been printed, | |
09ca9e2e TT |
2814 | whichever is smaller. ENCODING is the name of the string's |
2815 | encoding. It can be NULL, in which case the target encoding is | |
2816 | assumed. */ | |
ae6a3a4c TJB |
2817 | |
2818 | int | |
09ca9e2e TT |
2819 | val_print_string (struct type *elttype, const char *encoding, |
2820 | CORE_ADDR addr, int len, | |
6c7a06a3 | 2821 | struct ui_file *stream, |
ae6a3a4c TJB |
2822 | const struct value_print_options *options) |
2823 | { | |
2824 | int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ | |
d09f2c3f | 2825 | int err; /* Non-zero if we got a bad read. */ |
581e13c1 | 2826 | int found_nul; /* Non-zero if we found the nul char. */ |
ae6a3a4c TJB |
2827 | unsigned int fetchlimit; /* Maximum number of chars to print. */ |
2828 | int bytes_read; | |
b4be9fad | 2829 | gdb::unique_xmalloc_ptr<gdb_byte> buffer; /* Dynamically growable fetch buffer. */ |
5af949e3 | 2830 | struct gdbarch *gdbarch = get_type_arch (elttype); |
e17a4113 | 2831 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
6c7a06a3 | 2832 | int width = TYPE_LENGTH (elttype); |
ae6a3a4c TJB |
2833 | |
2834 | /* First we need to figure out the limit on the number of characters we are | |
2835 | going to attempt to fetch and print. This is actually pretty simple. If | |
2836 | LEN >= zero, then the limit is the minimum of LEN and print_max. If | |
2837 | LEN is -1, then the limit is print_max. This is true regardless of | |
2838 | whether print_max is zero, UINT_MAX (unlimited), or something in between, | |
2839 | because finding the null byte (or available memory) is what actually | |
2840 | limits the fetch. */ | |
2841 | ||
325fac50 PA |
2842 | fetchlimit = (len == -1 ? options->print_max : std::min ((unsigned) len, |
2843 | options->print_max)); | |
ae6a3a4c | 2844 | |
d09f2c3f PA |
2845 | err = read_string (addr, len, width, fetchlimit, byte_order, |
2846 | &buffer, &bytes_read); | |
ae6a3a4c TJB |
2847 | |
2848 | addr += bytes_read; | |
c906108c | 2849 | |
3e43a32a MS |
2850 | /* We now have either successfully filled the buffer to fetchlimit, |
2851 | or terminated early due to an error or finding a null char when | |
2852 | LEN is -1. */ | |
ae6a3a4c TJB |
2853 | |
2854 | /* Determine found_nul by looking at the last character read. */ | |
6694c411 JK |
2855 | found_nul = 0; |
2856 | if (bytes_read >= width) | |
b4be9fad TT |
2857 | found_nul = extract_unsigned_integer (buffer.get () + bytes_read - width, |
2858 | width, byte_order) == 0; | |
c906108c SS |
2859 | if (len == -1 && !found_nul) |
2860 | { | |
777ea8f1 | 2861 | gdb_byte *peekbuf; |
c906108c | 2862 | |
ae6a3a4c | 2863 | /* We didn't find a NUL terminator we were looking for. Attempt |
c5aa993b JM |
2864 | to peek at the next character. If not successful, or it is not |
2865 | a null byte, then force ellipsis to be printed. */ | |
c906108c | 2866 | |
777ea8f1 | 2867 | peekbuf = (gdb_byte *) alloca (width); |
c906108c SS |
2868 | |
2869 | if (target_read_memory (addr, peekbuf, width) == 0 | |
e17a4113 | 2870 | && extract_unsigned_integer (peekbuf, width, byte_order) != 0) |
c906108c SS |
2871 | force_ellipsis = 1; |
2872 | } | |
d09f2c3f | 2873 | else if ((len >= 0 && err != 0) || (len > bytes_read / width)) |
c906108c SS |
2874 | { |
2875 | /* Getting an error when we have a requested length, or fetching less | |
c5aa993b | 2876 | than the number of characters actually requested, always make us |
ae6a3a4c | 2877 | print ellipsis. */ |
c906108c SS |
2878 | force_ellipsis = 1; |
2879 | } | |
2880 | ||
c906108c SS |
2881 | /* If we get an error before fetching anything, don't print a string. |
2882 | But if we fetch something and then get an error, print the string | |
2883 | and then the error message. */ | |
d09f2c3f | 2884 | if (err == 0 || bytes_read > 0) |
c906108c | 2885 | { |
b4be9fad | 2886 | LA_PRINT_STRING (stream, elttype, buffer.get (), bytes_read / width, |
3a772aa4 | 2887 | encoding, force_ellipsis, options); |
c906108c SS |
2888 | } |
2889 | ||
d09f2c3f | 2890 | if (err != 0) |
c906108c | 2891 | { |
1ccbe998 | 2892 | std::string str = memory_error_message (TARGET_XFER_E_IO, gdbarch, addr); |
578d3588 PA |
2893 | |
2894 | fprintf_filtered (stream, "<error: "); | |
1ccbe998 | 2895 | fputs_filtered (str.c_str (), stream); |
578d3588 | 2896 | fprintf_filtered (stream, ">"); |
c906108c | 2897 | } |
ae6a3a4c | 2898 | |
ae6a3a4c | 2899 | return (bytes_read / width); |
c906108c | 2900 | } |
2e62ab40 AB |
2901 | |
2902 | /* Handle 'show print max-depth'. */ | |
2903 | ||
2904 | static void | |
2905 | show_print_max_depth (struct ui_file *file, int from_tty, | |
2906 | struct cmd_list_element *c, const char *value) | |
2907 | { | |
2908 | fprintf_filtered (file, _("Maximum print depth is %s.\n"), value); | |
2909 | } | |
c906108c | 2910 | \f |
c5aa993b | 2911 | |
09e6485f PA |
2912 | /* The 'set input-radix' command writes to this auxiliary variable. |
2913 | If the requested radix is valid, INPUT_RADIX is updated; otherwise, | |
2914 | it is left unchanged. */ | |
2915 | ||
2916 | static unsigned input_radix_1 = 10; | |
2917 | ||
c906108c SS |
2918 | /* Validate an input or output radix setting, and make sure the user |
2919 | knows what they really did here. Radix setting is confusing, e.g. | |
2920 | setting the input radix to "10" never changes it! */ | |
2921 | ||
c906108c | 2922 | static void |
eb4c3f4a | 2923 | set_input_radix (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2924 | { |
09e6485f | 2925 | set_input_radix_1 (from_tty, input_radix_1); |
c906108c SS |
2926 | } |
2927 | ||
c906108c | 2928 | static void |
fba45db2 | 2929 | set_input_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
2930 | { |
2931 | /* We don't currently disallow any input radix except 0 or 1, which don't | |
2932 | make any mathematical sense. In theory, we can deal with any input | |
2933 | radix greater than 1, even if we don't have unique digits for every | |
2934 | value from 0 to radix-1, but in practice we lose on large radix values. | |
2935 | We should either fix the lossage or restrict the radix range more. | |
581e13c1 | 2936 | (FIXME). */ |
c906108c SS |
2937 | |
2938 | if (radix < 2) | |
2939 | { | |
09e6485f | 2940 | input_radix_1 = input_radix; |
8a3fe4f8 | 2941 | error (_("Nonsense input radix ``decimal %u''; input radix unchanged."), |
c906108c SS |
2942 | radix); |
2943 | } | |
09e6485f | 2944 | input_radix_1 = input_radix = radix; |
c906108c SS |
2945 | if (from_tty) |
2946 | { | |
3e43a32a MS |
2947 | printf_filtered (_("Input radix now set to " |
2948 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2949 | radix, radix, radix); |
2950 | } | |
2951 | } | |
2952 | ||
09e6485f PA |
2953 | /* The 'set output-radix' command writes to this auxiliary variable. |
2954 | If the requested radix is valid, OUTPUT_RADIX is updated, | |
2955 | otherwise, it is left unchanged. */ | |
2956 | ||
2957 | static unsigned output_radix_1 = 10; | |
2958 | ||
c906108c | 2959 | static void |
eb4c3f4a | 2960 | set_output_radix (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2961 | { |
09e6485f | 2962 | set_output_radix_1 (from_tty, output_radix_1); |
c906108c SS |
2963 | } |
2964 | ||
2965 | static void | |
fba45db2 | 2966 | set_output_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
2967 | { |
2968 | /* Validate the radix and disallow ones that we aren't prepared to | |
581e13c1 | 2969 | handle correctly, leaving the radix unchanged. */ |
c906108c SS |
2970 | switch (radix) |
2971 | { | |
2972 | case 16: | |
79a45b7d | 2973 | user_print_options.output_format = 'x'; /* hex */ |
c906108c SS |
2974 | break; |
2975 | case 10: | |
79a45b7d | 2976 | user_print_options.output_format = 0; /* decimal */ |
c906108c SS |
2977 | break; |
2978 | case 8: | |
79a45b7d | 2979 | user_print_options.output_format = 'o'; /* octal */ |
c906108c SS |
2980 | break; |
2981 | default: | |
09e6485f | 2982 | output_radix_1 = output_radix; |
3e43a32a MS |
2983 | error (_("Unsupported output radix ``decimal %u''; " |
2984 | "output radix unchanged."), | |
c906108c SS |
2985 | radix); |
2986 | } | |
09e6485f | 2987 | output_radix_1 = output_radix = radix; |
c906108c SS |
2988 | if (from_tty) |
2989 | { | |
3e43a32a MS |
2990 | printf_filtered (_("Output radix now set to " |
2991 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2992 | radix, radix, radix); |
2993 | } | |
2994 | } | |
2995 | ||
2996 | /* Set both the input and output radix at once. Try to set the output radix | |
2997 | first, since it has the most restrictive range. An radix that is valid as | |
2998 | an output radix is also valid as an input radix. | |
2999 | ||
3000 | It may be useful to have an unusual input radix. If the user wishes to | |
3001 | set an input radix that is not valid as an output radix, he needs to use | |
581e13c1 | 3002 | the 'set input-radix' command. */ |
c906108c SS |
3003 | |
3004 | static void | |
b0a8e6c4 | 3005 | set_radix (const char *arg, int from_tty) |
c906108c SS |
3006 | { |
3007 | unsigned radix; | |
3008 | ||
bb518678 | 3009 | radix = (arg == NULL) ? 10 : parse_and_eval_long (arg); |
c906108c SS |
3010 | set_output_radix_1 (0, radix); |
3011 | set_input_radix_1 (0, radix); | |
3012 | if (from_tty) | |
3013 | { | |
3e43a32a MS |
3014 | printf_filtered (_("Input and output radices now set to " |
3015 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3016 | radix, radix, radix); |
3017 | } | |
3018 | } | |
3019 | ||
581e13c1 | 3020 | /* Show both the input and output radices. */ |
c906108c | 3021 | |
c906108c | 3022 | static void |
b0a8e6c4 | 3023 | show_radix (const char *arg, int from_tty) |
c906108c SS |
3024 | { |
3025 | if (from_tty) | |
3026 | { | |
3027 | if (input_radix == output_radix) | |
3028 | { | |
3e43a32a MS |
3029 | printf_filtered (_("Input and output radices set to " |
3030 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3031 | input_radix, input_radix, input_radix); |
3032 | } | |
3033 | else | |
3034 | { | |
3e43a32a MS |
3035 | printf_filtered (_("Input radix set to decimal " |
3036 | "%u, hex %x, octal %o.\n"), | |
c906108c | 3037 | input_radix, input_radix, input_radix); |
3e43a32a MS |
3038 | printf_filtered (_("Output radix set to decimal " |
3039 | "%u, hex %x, octal %o.\n"), | |
c906108c SS |
3040 | output_radix, output_radix, output_radix); |
3041 | } | |
3042 | } | |
3043 | } | |
c906108c | 3044 | \f |
c5aa993b | 3045 | |
c906108c | 3046 | static void |
981a3fb3 | 3047 | set_print (const char *arg, int from_tty) |
c906108c SS |
3048 | { |
3049 | printf_unfiltered ( | |
c5aa993b | 3050 | "\"set print\" must be followed by the name of a print subcommand.\n"); |
635c7e8a | 3051 | help_list (setprintlist, "set print ", all_commands, gdb_stdout); |
c906108c SS |
3052 | } |
3053 | ||
c906108c | 3054 | static void |
981a3fb3 | 3055 | show_print (const char *args, int from_tty) |
c906108c SS |
3056 | { |
3057 | cmd_show_list (showprintlist, from_tty, ""); | |
3058 | } | |
e7045703 DE |
3059 | |
3060 | static void | |
981a3fb3 | 3061 | set_print_raw (const char *arg, int from_tty) |
e7045703 DE |
3062 | { |
3063 | printf_unfiltered ( | |
3064 | "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n"); | |
635c7e8a | 3065 | help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout); |
e7045703 DE |
3066 | } |
3067 | ||
3068 | static void | |
981a3fb3 | 3069 | show_print_raw (const char *args, int from_tty) |
e7045703 DE |
3070 | { |
3071 | cmd_show_list (showprintrawlist, from_tty, ""); | |
3072 | } | |
3073 | ||
7d8062de PA |
3074 | /* Controls printing of vtbl's. */ |
3075 | static void | |
3076 | show_vtblprint (struct ui_file *file, int from_tty, | |
3077 | struct cmd_list_element *c, const char *value) | |
3078 | { | |
3079 | fprintf_filtered (file, _("\ | |
3080 | Printing of C++ virtual function tables is %s.\n"), | |
3081 | value); | |
3082 | } | |
3083 | ||
3084 | /* Controls looking up an object's derived type using what we find in | |
3085 | its vtables. */ | |
3086 | static void | |
3087 | show_objectprint (struct ui_file *file, int from_tty, | |
3088 | struct cmd_list_element *c, | |
3089 | const char *value) | |
3090 | { | |
3091 | fprintf_filtered (file, _("\ | |
3092 | Printing of object's derived type based on vtable info is %s.\n"), | |
3093 | value); | |
3094 | } | |
3095 | ||
3096 | static void | |
3097 | show_static_field_print (struct ui_file *file, int from_tty, | |
3098 | struct cmd_list_element *c, | |
3099 | const char *value) | |
3100 | { | |
3101 | fprintf_filtered (file, | |
3102 | _("Printing of C++ static members is %s.\n"), | |
3103 | value); | |
3104 | } | |
3105 | ||
c906108c | 3106 | \f |
7d8062de PA |
3107 | |
3108 | /* A couple typedefs to make writing the options a bit more | |
3109 | convenient. */ | |
3110 | using boolean_option_def | |
3111 | = gdb::option::boolean_option_def<value_print_options>; | |
3112 | using uinteger_option_def | |
3113 | = gdb::option::uinteger_option_def<value_print_options>; | |
3114 | using zuinteger_unlimited_option_def | |
3115 | = gdb::option::zuinteger_unlimited_option_def<value_print_options>; | |
3116 | ||
3117 | /* Definions of options for the "print" and "compile print" | |
3118 | commands. */ | |
3119 | static const gdb::option::option_def value_print_option_defs[] = { | |
3120 | ||
3121 | boolean_option_def { | |
3122 | "address", | |
3123 | [] (value_print_options *opt) { return &opt->addressprint; }, | |
3124 | show_addressprint, /* show_cmd_cb */ | |
3125 | N_("Set printing of addresses."), | |
3126 | N_("Show printing of addresses."), | |
3127 | NULL, /* help_doc */ | |
3128 | }, | |
3129 | ||
3130 | boolean_option_def { | |
3131 | "array", | |
3132 | [] (value_print_options *opt) { return &opt->prettyformat_arrays; }, | |
3133 | show_prettyformat_arrays, /* show_cmd_cb */ | |
3134 | N_("Set pretty formatting of arrays."), | |
3135 | N_("Show pretty formatting of arrays."), | |
3136 | NULL, /* help_doc */ | |
3137 | }, | |
3138 | ||
3139 | boolean_option_def { | |
3140 | "array-indexes", | |
3141 | [] (value_print_options *opt) { return &opt->print_array_indexes; }, | |
3142 | show_print_array_indexes, /* show_cmd_cb */ | |
3143 | N_("Set printing of array indexes."), | |
590042fc | 3144 | N_("Show printing of array indexes."), |
7d8062de PA |
3145 | NULL, /* help_doc */ |
3146 | }, | |
3147 | ||
3148 | uinteger_option_def { | |
3149 | "elements", | |
3150 | [] (value_print_options *opt) { return &opt->print_max; }, | |
3151 | show_print_max, /* show_cmd_cb */ | |
3152 | N_("Set limit on string chars or array elements to print."), | |
3153 | N_("Show limit on string chars or array elements to print."), | |
3154 | N_("\"unlimited\" causes there to be no limit."), | |
3155 | }, | |
3156 | ||
3157 | zuinteger_unlimited_option_def { | |
3158 | "max-depth", | |
3159 | [] (value_print_options *opt) { return &opt->max_depth; }, | |
3160 | show_print_max_depth, /* show_cmd_cb */ | |
3161 | N_("Set maximum print depth for nested structures, unions and arrays."), | |
3162 | N_("Show maximum print depth for nested structures, unions, and arrays."), | |
3163 | N_("When structures, unions, or arrays are nested beyond this depth then they\n\ | |
3164 | will be replaced with either '{...}' or '(...)' depending on the language.\n\ | |
3165 | Use \"unlimited\" to print the complete structure.") | |
3166 | }, | |
3167 | ||
3168 | boolean_option_def { | |
3169 | "null-stop", | |
3170 | [] (value_print_options *opt) { return &opt->stop_print_at_null; }, | |
3171 | show_stop_print_at_null, /* show_cmd_cb */ | |
3172 | N_("Set printing of char arrays to stop at first null char."), | |
3173 | N_("Show printing of char arrays to stop at first null char."), | |
3174 | NULL, /* help_doc */ | |
3175 | }, | |
3176 | ||
3177 | boolean_option_def { | |
3178 | "object", | |
3179 | [] (value_print_options *opt) { return &opt->objectprint; }, | |
3180 | show_objectprint, /* show_cmd_cb */ | |
3181 | _("Set printing of C++ virtual function tables."), | |
3182 | _("Show printing of C++ virtual function tables."), | |
3183 | NULL, /* help_doc */ | |
3184 | }, | |
3185 | ||
3186 | boolean_option_def { | |
3187 | "pretty", | |
3188 | [] (value_print_options *opt) { return &opt->prettyformat_structs; }, | |
3189 | show_prettyformat_structs, /* show_cmd_cb */ | |
3190 | N_("Set pretty formatting of structures."), | |
3191 | N_("Show pretty formatting of structures."), | |
3192 | NULL, /* help_doc */ | |
3193 | }, | |
3194 | ||
3195 | uinteger_option_def { | |
3196 | "repeats", | |
3197 | [] (value_print_options *opt) { return &opt->repeat_count_threshold; }, | |
3198 | show_repeat_count_threshold, /* show_cmd_cb */ | |
3199 | N_("Set threshold for repeated print elements."), | |
3200 | N_("Show threshold for repeated print elements."), | |
3201 | N_("\"unlimited\" causes all elements to be individually printed."), | |
3202 | }, | |
3203 | ||
3204 | boolean_option_def { | |
3205 | "static-members", | |
3206 | [] (value_print_options *opt) { return &opt->static_field_print; }, | |
3207 | show_static_field_print, /* show_cmd_cb */ | |
3208 | N_("Set printing of C++ static members."), | |
3209 | N_("Show printing of C++ static members."), | |
3210 | NULL, /* help_doc */ | |
3211 | }, | |
3212 | ||
3213 | boolean_option_def { | |
3214 | "symbol", | |
3215 | [] (value_print_options *opt) { return &opt->symbol_print; }, | |
3216 | show_symbol_print, /* show_cmd_cb */ | |
3217 | N_("Set printing of symbol names when printing pointers."), | |
3218 | N_("Show printing of symbol names when printing pointers."), | |
3219 | NULL, /* help_doc */ | |
3220 | }, | |
3221 | ||
3222 | boolean_option_def { | |
3223 | "union", | |
3224 | [] (value_print_options *opt) { return &opt->unionprint; }, | |
3225 | show_unionprint, /* show_cmd_cb */ | |
3226 | N_("Set printing of unions interior to structures."), | |
3227 | N_("Show printing of unions interior to structures."), | |
3228 | NULL, /* help_doc */ | |
3229 | }, | |
3230 | ||
3231 | boolean_option_def { | |
3232 | "vtbl", | |
3233 | [] (value_print_options *opt) { return &opt->vtblprint; }, | |
3234 | show_vtblprint, /* show_cmd_cb */ | |
3235 | N_("Set printing of C++ virtual function tables."), | |
3236 | N_("Show printing of C++ virtual function tables."), | |
3237 | NULL, /* help_doc */ | |
3238 | }, | |
3239 | }; | |
3240 | ||
3241 | /* See valprint.h. */ | |
3242 | ||
3243 | gdb::option::option_def_group | |
3244 | make_value_print_options_def_group (value_print_options *opts) | |
3245 | { | |
3246 | return {{value_print_option_defs}, opts}; | |
3247 | } | |
3248 | ||
c906108c | 3249 | void |
fba45db2 | 3250 | _initialize_valprint (void) |
c906108c | 3251 | { |
2daf894e PA |
3252 | cmd_list_element *cmd; |
3253 | ||
c906108c | 3254 | add_prefix_cmd ("print", no_class, set_print, |
1bedd215 | 3255 | _("Generic command for setting how things print."), |
c906108c | 3256 | &setprintlist, "set print ", 0, &setlist); |
c5aa993b | 3257 | add_alias_cmd ("p", "print", no_class, 1, &setlist); |
581e13c1 | 3258 | /* Prefer set print to set prompt. */ |
c906108c SS |
3259 | add_alias_cmd ("pr", "print", no_class, 1, &setlist); |
3260 | ||
3261 | add_prefix_cmd ("print", no_class, show_print, | |
1bedd215 | 3262 | _("Generic command for showing print settings."), |
c906108c | 3263 | &showprintlist, "show print ", 0, &showlist); |
c5aa993b JM |
3264 | add_alias_cmd ("p", "print", no_class, 1, &showlist); |
3265 | add_alias_cmd ("pr", "print", no_class, 1, &showlist); | |
c906108c | 3266 | |
2daf894e PA |
3267 | cmd = add_prefix_cmd ("raw", no_class, set_print_raw, |
3268 | _("\ | |
e7045703 | 3269 | Generic command for setting what things to print in \"raw\" mode."), |
2daf894e PA |
3270 | &setprintrawlist, "set print raw ", 0, |
3271 | &setprintlist); | |
3272 | deprecate_cmd (cmd, nullptr); | |
3273 | ||
3274 | cmd = add_prefix_cmd ("raw", no_class, show_print_raw, | |
3275 | _("Generic command for showing \"print raw\" settings."), | |
3276 | &showprintrawlist, "show print raw ", 0, | |
3277 | &showprintlist); | |
3278 | deprecate_cmd (cmd, nullptr); | |
e7045703 | 3279 | |
7d8062de PA |
3280 | gdb::option::add_setshow_cmds_for_options |
3281 | (class_support, &user_print_options, value_print_option_defs, | |
3282 | &setprintlist, &showprintlist); | |
9cb709b6 | 3283 | |
1e8fb976 PA |
3284 | add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1, |
3285 | _("\ | |
35096d9d AC |
3286 | Set default input radix for entering numbers."), _("\ |
3287 | Show default input radix for entering numbers."), NULL, | |
1e8fb976 PA |
3288 | set_input_radix, |
3289 | show_input_radix, | |
3290 | &setlist, &showlist); | |
35096d9d | 3291 | |
1e8fb976 PA |
3292 | add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1, |
3293 | _("\ | |
35096d9d AC |
3294 | Set default output radix for printing of values."), _("\ |
3295 | Show default output radix for printing of values."), NULL, | |
1e8fb976 PA |
3296 | set_output_radix, |
3297 | show_output_radix, | |
3298 | &setlist, &showlist); | |
c906108c | 3299 | |
cb1a6d5f AC |
3300 | /* The "set radix" and "show radix" commands are special in that |
3301 | they are like normal set and show commands but allow two normally | |
3302 | independent variables to be either set or shown with a single | |
b66df561 | 3303 | command. So the usual deprecated_add_set_cmd() and [deleted] |
581e13c1 | 3304 | add_show_from_set() commands aren't really appropriate. */ |
b66df561 AC |
3305 | /* FIXME: i18n: With the new add_setshow_integer command, that is no |
3306 | longer true - show can display anything. */ | |
1a966eab AC |
3307 | add_cmd ("radix", class_support, set_radix, _("\ |
3308 | Set default input and output number radices.\n\ | |
c906108c | 3309 | Use 'set input-radix' or 'set output-radix' to independently set each.\n\ |
1a966eab | 3310 | Without an argument, sets both radices back to the default value of 10."), |
c906108c | 3311 | &setlist); |
1a966eab AC |
3312 | add_cmd ("radix", class_support, show_radix, _("\ |
3313 | Show the default input and output number radices.\n\ | |
3314 | Use 'show input-radix' or 'show output-radix' to independently show each."), | |
c906108c | 3315 | &showlist); |
c906108c | 3316 | } |