Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Print values for GDB, the GNU debugger. |
5c1c87f0 | 2 | |
b811d2c2 | 3 | Copyright (C) 1986-2020 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" |
7f6aba03 | 41 | #include "cli/cli-style.h" |
edd45eb0 | 42 | #include "count-one-bits.h" |
c906108c | 43 | |
0d63ecda KS |
44 | /* Maximum number of wchars returned from wchar_iterate. */ |
45 | #define MAX_WCHARS 4 | |
46 | ||
47 | /* A convenience macro to compute the size of a wchar_t buffer containing X | |
48 | characters. */ | |
49 | #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t)) | |
50 | ||
51 | /* Character buffer size saved while iterating over wchars. */ | |
52 | #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS) | |
53 | ||
54 | /* A structure to encapsulate state information from iterated | |
55 | character conversions. */ | |
56 | struct converted_character | |
57 | { | |
58 | /* The number of characters converted. */ | |
59 | int num_chars; | |
60 | ||
61 | /* The result of the conversion. See charset.h for more. */ | |
62 | enum wchar_iterate_result result; | |
63 | ||
64 | /* The (saved) converted character(s). */ | |
65 | gdb_wchar_t chars[WCHAR_BUFLEN_MAX]; | |
66 | ||
67 | /* The first converted target byte. */ | |
68 | const gdb_byte *buf; | |
69 | ||
70 | /* The number of bytes converted. */ | |
71 | size_t buflen; | |
72 | ||
73 | /* How many times this character(s) is repeated. */ | |
74 | int repeat_count; | |
75 | }; | |
76 | ||
e7045703 DE |
77 | /* Command lists for set/show print raw. */ |
78 | struct cmd_list_element *setprintrawlist; | |
79 | struct cmd_list_element *showprintrawlist; | |
0d63ecda | 80 | |
c906108c SS |
81 | /* Prototypes for local functions */ |
82 | ||
777ea8f1 | 83 | static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 84 | int len, int *errptr); |
917317f4 | 85 | |
a14ed312 | 86 | static void set_input_radix_1 (int, unsigned); |
c906108c | 87 | |
a14ed312 | 88 | static void set_output_radix_1 (int, unsigned); |
c906108c | 89 | |
81516450 DE |
90 | static void val_print_type_code_flags (struct type *type, |
91 | const gdb_byte *valaddr, | |
92 | struct ui_file *stream); | |
93 | ||
581e13c1 | 94 | #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ |
2e62ab40 | 95 | #define PRINT_MAX_DEPTH_DEFAULT 20 /* Start print_max_depth off at this value. */ |
79a45b7d TT |
96 | |
97 | struct value_print_options user_print_options = | |
98 | { | |
2a998fc0 DE |
99 | Val_prettyformat_default, /* prettyformat */ |
100 | 0, /* prettyformat_arrays */ | |
101 | 0, /* prettyformat_structs */ | |
79a45b7d TT |
102 | 0, /* vtblprint */ |
103 | 1, /* unionprint */ | |
104 | 1, /* addressprint */ | |
105 | 0, /* objectprint */ | |
106 | PRINT_MAX_DEFAULT, /* print_max */ | |
107 | 10, /* repeat_count_threshold */ | |
108 | 0, /* output_format */ | |
109 | 0, /* format */ | |
110 | 0, /* stop_print_at_null */ | |
79a45b7d TT |
111 | 0, /* print_array_indexes */ |
112 | 0, /* deref_ref */ | |
113 | 1, /* static_field_print */ | |
a6bac58e TT |
114 | 1, /* pascal_static_field_print */ |
115 | 0, /* raw */ | |
9cb709b6 | 116 | 0, /* summary */ |
2e62ab40 | 117 | 1, /* symbol_print */ |
000439d5 TT |
118 | PRINT_MAX_DEPTH_DEFAULT, /* max_depth */ |
119 | 1 /* finish_print */ | |
79a45b7d TT |
120 | }; |
121 | ||
122 | /* Initialize *OPTS to be a copy of the user print options. */ | |
123 | void | |
124 | get_user_print_options (struct value_print_options *opts) | |
125 | { | |
126 | *opts = user_print_options; | |
127 | } | |
128 | ||
129 | /* Initialize *OPTS to be a copy of the user print options, but with | |
2a998fc0 | 130 | pretty-formatting disabled. */ |
79a45b7d | 131 | void |
2a998fc0 | 132 | get_no_prettyformat_print_options (struct value_print_options *opts) |
79a45b7d TT |
133 | { |
134 | *opts = user_print_options; | |
2a998fc0 | 135 | opts->prettyformat = Val_no_prettyformat; |
79a45b7d TT |
136 | } |
137 | ||
138 | /* Initialize *OPTS to be a copy of the user print options, but using | |
139 | FORMAT as the formatting option. */ | |
140 | void | |
141 | get_formatted_print_options (struct value_print_options *opts, | |
142 | char format) | |
143 | { | |
144 | *opts = user_print_options; | |
145 | opts->format = format; | |
146 | } | |
147 | ||
920d2a44 AC |
148 | static void |
149 | show_print_max (struct ui_file *file, int from_tty, | |
150 | struct cmd_list_element *c, const char *value) | |
151 | { | |
3e43a32a MS |
152 | fprintf_filtered (file, |
153 | _("Limit on string chars or array " | |
154 | "elements to print is %s.\n"), | |
920d2a44 AC |
155 | value); |
156 | } | |
157 | ||
c906108c SS |
158 | |
159 | /* Default input and output radixes, and output format letter. */ | |
160 | ||
161 | unsigned input_radix = 10; | |
920d2a44 AC |
162 | static void |
163 | show_input_radix (struct ui_file *file, int from_tty, | |
164 | struct cmd_list_element *c, const char *value) | |
165 | { | |
3e43a32a MS |
166 | fprintf_filtered (file, |
167 | _("Default input radix for entering numbers is %s.\n"), | |
920d2a44 AC |
168 | value); |
169 | } | |
170 | ||
c906108c | 171 | unsigned output_radix = 10; |
920d2a44 AC |
172 | static void |
173 | show_output_radix (struct ui_file *file, int from_tty, | |
174 | struct cmd_list_element *c, const char *value) | |
175 | { | |
3e43a32a MS |
176 | fprintf_filtered (file, |
177 | _("Default output radix for printing of values is %s.\n"), | |
920d2a44 AC |
178 | value); |
179 | } | |
c906108c | 180 | |
e79af960 JB |
181 | /* By default we print arrays without printing the index of each element in |
182 | the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */ | |
183 | ||
e79af960 JB |
184 | static void |
185 | show_print_array_indexes (struct ui_file *file, int from_tty, | |
186 | struct cmd_list_element *c, const char *value) | |
187 | { | |
188 | fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value); | |
189 | } | |
190 | ||
c906108c SS |
191 | /* Print repeat counts if there are more than this many repetitions of an |
192 | element in an array. Referenced by the low level language dependent | |
581e13c1 | 193 | print routines. */ |
c906108c | 194 | |
920d2a44 AC |
195 | static void |
196 | show_repeat_count_threshold (struct ui_file *file, int from_tty, | |
197 | struct cmd_list_element *c, const char *value) | |
198 | { | |
199 | fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"), | |
200 | value); | |
201 | } | |
c906108c | 202 | |
581e13c1 | 203 | /* If nonzero, stops printing of char arrays at first null. */ |
c906108c | 204 | |
920d2a44 AC |
205 | static void |
206 | show_stop_print_at_null (struct ui_file *file, int from_tty, | |
207 | struct cmd_list_element *c, const char *value) | |
208 | { | |
3e43a32a MS |
209 | fprintf_filtered (file, |
210 | _("Printing of char arrays to stop " | |
211 | "at first null char is %s.\n"), | |
920d2a44 AC |
212 | value); |
213 | } | |
c906108c | 214 | |
581e13c1 | 215 | /* Controls pretty printing of structures. */ |
c906108c | 216 | |
920d2a44 | 217 | static void |
2a998fc0 | 218 | show_prettyformat_structs (struct ui_file *file, int from_tty, |
920d2a44 AC |
219 | struct cmd_list_element *c, const char *value) |
220 | { | |
2a998fc0 | 221 | fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value); |
920d2a44 | 222 | } |
c906108c SS |
223 | |
224 | /* Controls pretty printing of arrays. */ | |
225 | ||
920d2a44 | 226 | static void |
2a998fc0 | 227 | show_prettyformat_arrays (struct ui_file *file, int from_tty, |
920d2a44 AC |
228 | struct cmd_list_element *c, const char *value) |
229 | { | |
2a998fc0 | 230 | fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value); |
920d2a44 | 231 | } |
c906108c SS |
232 | |
233 | /* If nonzero, causes unions inside structures or other unions to be | |
581e13c1 | 234 | printed. */ |
c906108c | 235 | |
920d2a44 AC |
236 | static void |
237 | show_unionprint (struct ui_file *file, int from_tty, | |
238 | struct cmd_list_element *c, const char *value) | |
239 | { | |
3e43a32a MS |
240 | fprintf_filtered (file, |
241 | _("Printing of unions interior to structures is %s.\n"), | |
920d2a44 AC |
242 | value); |
243 | } | |
c906108c | 244 | |
581e13c1 | 245 | /* If nonzero, causes machine addresses to be printed in certain contexts. */ |
c906108c | 246 | |
920d2a44 AC |
247 | static void |
248 | show_addressprint (struct ui_file *file, int from_tty, | |
249 | struct cmd_list_element *c, const char *value) | |
250 | { | |
251 | fprintf_filtered (file, _("Printing of addresses is %s.\n"), value); | |
252 | } | |
9cb709b6 TT |
253 | |
254 | static void | |
255 | show_symbol_print (struct ui_file *file, int from_tty, | |
256 | struct cmd_list_element *c, const char *value) | |
257 | { | |
258 | fprintf_filtered (file, | |
259 | _("Printing of symbols when printing pointers is %s.\n"), | |
260 | value); | |
261 | } | |
262 | ||
c906108c | 263 | \f |
c5aa993b | 264 | |
a6bac58e TT |
265 | /* A helper function for val_print. When printing in "summary" mode, |
266 | we want to print scalar arguments, but not aggregate arguments. | |
267 | This function distinguishes between the two. */ | |
268 | ||
6211c335 YQ |
269 | int |
270 | val_print_scalar_type_p (struct type *type) | |
a6bac58e | 271 | { |
f168693b | 272 | type = check_typedef (type); |
aa006118 | 273 | while (TYPE_IS_REFERENCE (type)) |
a6bac58e TT |
274 | { |
275 | type = TYPE_TARGET_TYPE (type); | |
f168693b | 276 | type = check_typedef (type); |
a6bac58e TT |
277 | } |
278 | switch (TYPE_CODE (type)) | |
279 | { | |
280 | case TYPE_CODE_ARRAY: | |
281 | case TYPE_CODE_STRUCT: | |
282 | case TYPE_CODE_UNION: | |
283 | case TYPE_CODE_SET: | |
284 | case TYPE_CODE_STRING: | |
a6bac58e TT |
285 | return 0; |
286 | default: | |
287 | return 1; | |
288 | } | |
289 | } | |
290 | ||
2e62ab40 AB |
291 | /* A helper function for val_print. When printing with limited depth we |
292 | want to print string and scalar arguments, but not aggregate arguments. | |
293 | This function distinguishes between the two. */ | |
294 | ||
295 | static bool | |
296 | val_print_scalar_or_string_type_p (struct type *type, | |
297 | const struct language_defn *language) | |
298 | { | |
299 | return (val_print_scalar_type_p (type) | |
300 | || language->la_is_string_type_p (type)); | |
301 | } | |
302 | ||
a72c8f6a | 303 | /* See its definition in value.h. */ |
0e03807e | 304 | |
a72c8f6a | 305 | int |
0e03807e TT |
306 | valprint_check_validity (struct ui_file *stream, |
307 | struct type *type, | |
6b850546 | 308 | LONGEST embedded_offset, |
0e03807e TT |
309 | const struct value *val) |
310 | { | |
f168693b | 311 | type = check_typedef (type); |
0e03807e | 312 | |
3f2f83dd KB |
313 | if (type_not_associated (type)) |
314 | { | |
315 | val_print_not_associated (stream); | |
316 | return 0; | |
317 | } | |
318 | ||
319 | if (type_not_allocated (type)) | |
320 | { | |
321 | val_print_not_allocated (stream); | |
322 | return 0; | |
323 | } | |
324 | ||
0e03807e TT |
325 | if (TYPE_CODE (type) != TYPE_CODE_UNION |
326 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
327 | && TYPE_CODE (type) != TYPE_CODE_ARRAY) | |
328 | { | |
9a0dc9e3 PA |
329 | if (value_bits_any_optimized_out (val, |
330 | TARGET_CHAR_BIT * embedded_offset, | |
331 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
0e03807e | 332 | { |
901461f8 | 333 | val_print_optimized_out (val, stream); |
0e03807e TT |
334 | return 0; |
335 | } | |
8cf6f0b1 | 336 | |
4e07d55f | 337 | if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset, |
8cf6f0b1 TT |
338 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) |
339 | { | |
3326303b MG |
340 | const int is_ref = TYPE_CODE (type) == TYPE_CODE_REF; |
341 | int ref_is_addressable = 0; | |
342 | ||
343 | if (is_ref) | |
344 | { | |
345 | const struct value *deref_val = coerce_ref_if_computed (val); | |
346 | ||
347 | if (deref_val != NULL) | |
348 | ref_is_addressable = value_lval_const (deref_val) == lval_memory; | |
349 | } | |
350 | ||
351 | if (!is_ref || !ref_is_addressable) | |
7f6aba03 TT |
352 | fputs_styled (_("<synthetic pointer>"), metadata_style.style (), |
353 | stream); | |
3326303b MG |
354 | |
355 | /* C++ references should be valid even if they're synthetic. */ | |
356 | return is_ref; | |
8cf6f0b1 | 357 | } |
4e07d55f PA |
358 | |
359 | if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) | |
360 | { | |
361 | val_print_unavailable (stream); | |
362 | return 0; | |
363 | } | |
0e03807e TT |
364 | } |
365 | ||
366 | return 1; | |
367 | } | |
368 | ||
585fdaa1 | 369 | void |
901461f8 | 370 | val_print_optimized_out (const struct value *val, struct ui_file *stream) |
585fdaa1 | 371 | { |
901461f8 | 372 | if (val != NULL && value_lval_const (val) == lval_register) |
782d47df | 373 | val_print_not_saved (stream); |
901461f8 | 374 | else |
7f6aba03 | 375 | fprintf_styled (stream, metadata_style.style (), _("<optimized out>")); |
585fdaa1 PA |
376 | } |
377 | ||
782d47df PA |
378 | void |
379 | val_print_not_saved (struct ui_file *stream) | |
380 | { | |
7f6aba03 | 381 | fprintf_styled (stream, metadata_style.style (), _("<not saved>")); |
782d47df PA |
382 | } |
383 | ||
4e07d55f PA |
384 | void |
385 | val_print_unavailable (struct ui_file *stream) | |
386 | { | |
7f6aba03 | 387 | fprintf_styled (stream, metadata_style.style (), _("<unavailable>")); |
4e07d55f PA |
388 | } |
389 | ||
8af8e3bc PA |
390 | void |
391 | val_print_invalid_address (struct ui_file *stream) | |
392 | { | |
7f6aba03 | 393 | fprintf_styled (stream, metadata_style.style (), _("<invalid address>")); |
8af8e3bc PA |
394 | } |
395 | ||
9f436164 SM |
396 | /* Print a pointer based on the type of its target. |
397 | ||
398 | Arguments to this functions are roughly the same as those in | |
399 | generic_val_print. A difference is that ADDRESS is the address to print, | |
400 | with embedded_offset already added. ELTTYPE represents | |
401 | the pointed type after check_typedef. */ | |
402 | ||
403 | static void | |
404 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
405 | CORE_ADDR address, struct ui_file *stream, | |
406 | const struct value_print_options *options) | |
407 | { | |
408 | struct gdbarch *gdbarch = get_type_arch (type); | |
409 | ||
410 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
411 | { | |
412 | /* Try to print what function it points to. */ | |
413 | print_function_pointer_address (options, gdbarch, address, stream); | |
414 | return; | |
415 | } | |
416 | ||
417 | if (options->symbol_print) | |
418 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
419 | else if (options->addressprint) | |
420 | fputs_filtered (paddress (gdbarch, address), stream); | |
421 | } | |
422 | ||
557dbe8a SM |
423 | /* generic_val_print helper for TYPE_CODE_ARRAY. */ |
424 | ||
425 | static void | |
e8b24d9f | 426 | generic_val_print_array (struct type *type, |
00272ec4 TT |
427 | int embedded_offset, CORE_ADDR address, |
428 | struct ui_file *stream, int recurse, | |
e8b24d9f | 429 | struct value *original_value, |
00272ec4 TT |
430 | const struct value_print_options *options, |
431 | const struct | |
432 | generic_val_print_decorations *decorations) | |
557dbe8a SM |
433 | { |
434 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
435 | struct type *elttype = check_typedef (unresolved_elttype); | |
436 | ||
437 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
438 | { | |
439 | LONGEST low_bound, high_bound; | |
440 | ||
441 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
442 | error (_("Could not determine the array high bound")); | |
443 | ||
444 | if (options->prettyformat_arrays) | |
445 | { | |
446 | print_spaces_filtered (2 + 2 * recurse, stream); | |
447 | } | |
448 | ||
00272ec4 | 449 | fputs_filtered (decorations->array_start, stream); |
e8b24d9f | 450 | val_print_array_elements (type, embedded_offset, |
557dbe8a SM |
451 | address, stream, |
452 | recurse, original_value, options, 0); | |
00272ec4 | 453 | fputs_filtered (decorations->array_end, stream); |
557dbe8a SM |
454 | } |
455 | else | |
456 | { | |
457 | /* Array of unspecified length: treat like pointer to first elt. */ | |
458 | print_unpacked_pointer (type, elttype, address + embedded_offset, stream, | |
459 | options); | |
460 | } | |
461 | ||
462 | } | |
463 | ||
81eb921a SM |
464 | /* generic_val_print helper for TYPE_CODE_PTR. */ |
465 | ||
466 | static void | |
e8b24d9f | 467 | generic_val_print_ptr (struct type *type, |
81eb921a | 468 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 469 | struct value *original_value, |
81eb921a SM |
470 | const struct value_print_options *options) |
471 | { | |
3ae385af SM |
472 | struct gdbarch *gdbarch = get_type_arch (type); |
473 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
474 | ||
81eb921a SM |
475 | if (options->format && options->format != 's') |
476 | { | |
e8b24d9f | 477 | val_print_scalar_formatted (type, embedded_offset, |
81eb921a SM |
478 | original_value, options, 0, stream); |
479 | } | |
480 | else | |
481 | { | |
482 | struct type *unresolved_elttype = TYPE_TARGET_TYPE(type); | |
483 | struct type *elttype = check_typedef (unresolved_elttype); | |
e8b24d9f | 484 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af SM |
485 | CORE_ADDR addr = unpack_pointer (type, |
486 | valaddr + embedded_offset * unit_size); | |
81eb921a SM |
487 | |
488 | print_unpacked_pointer (type, elttype, addr, stream, options); | |
489 | } | |
490 | } | |
491 | ||
45000ea2 SM |
492 | |
493 | /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */ | |
494 | ||
495 | static void | |
e8b24d9f | 496 | generic_val_print_memberptr (struct type *type, |
45000ea2 | 497 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 498 | struct value *original_value, |
45000ea2 SM |
499 | const struct value_print_options *options) |
500 | { | |
e8b24d9f | 501 | val_print_scalar_formatted (type, embedded_offset, |
45000ea2 SM |
502 | original_value, options, 0, stream); |
503 | } | |
504 | ||
3326303b MG |
505 | /* Print '@' followed by the address contained in ADDRESS_BUFFER. */ |
506 | ||
507 | static void | |
508 | print_ref_address (struct type *type, const gdb_byte *address_buffer, | |
509 | int embedded_offset, struct ui_file *stream) | |
510 | { | |
511 | struct gdbarch *gdbarch = get_type_arch (type); | |
512 | ||
513 | if (address_buffer != NULL) | |
514 | { | |
515 | CORE_ADDR address | |
516 | = extract_typed_address (address_buffer + embedded_offset, type); | |
517 | ||
518 | fprintf_filtered (stream, "@"); | |
519 | fputs_filtered (paddress (gdbarch, address), stream); | |
520 | } | |
521 | /* Else: we have a non-addressable value, such as a DW_AT_const_value. */ | |
522 | } | |
523 | ||
524 | /* If VAL is addressable, return the value contents buffer of a value that | |
525 | represents a pointer to VAL. Otherwise return NULL. */ | |
526 | ||
527 | static const gdb_byte * | |
528 | get_value_addr_contents (struct value *deref_val) | |
529 | { | |
530 | gdb_assert (deref_val != NULL); | |
531 | ||
532 | if (value_lval_const (deref_val) == lval_memory) | |
533 | return value_contents_for_printing_const (value_addr (deref_val)); | |
534 | else | |
535 | { | |
536 | /* We have a non-addressable value, such as a DW_AT_const_value. */ | |
537 | return NULL; | |
538 | } | |
539 | } | |
540 | ||
aa006118 | 541 | /* generic_val_print helper for TYPE_CODE_{RVALUE_,}REF. */ |
fe43fede SM |
542 | |
543 | static void | |
e8b24d9f | 544 | generic_val_print_ref (struct type *type, |
fe43fede | 545 | int embedded_offset, struct ui_file *stream, int recurse, |
e8b24d9f | 546 | struct value *original_value, |
fe43fede SM |
547 | const struct value_print_options *options) |
548 | { | |
fe43fede | 549 | struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type)); |
3326303b MG |
550 | struct value *deref_val = NULL; |
551 | const int value_is_synthetic | |
552 | = value_bits_synthetic_pointer (original_value, | |
553 | TARGET_CHAR_BIT * embedded_offset, | |
554 | TARGET_CHAR_BIT * TYPE_LENGTH (type)); | |
555 | const int must_coerce_ref = ((options->addressprint && value_is_synthetic) | |
556 | || options->deref_ref); | |
557 | const int type_is_defined = TYPE_CODE (elttype) != TYPE_CODE_UNDEF; | |
e8b24d9f | 558 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3326303b MG |
559 | |
560 | if (must_coerce_ref && type_is_defined) | |
561 | { | |
562 | deref_val = coerce_ref_if_computed (original_value); | |
563 | ||
564 | if (deref_val != NULL) | |
565 | { | |
566 | /* More complicated computed references are not supported. */ | |
567 | gdb_assert (embedded_offset == 0); | |
568 | } | |
569 | else | |
570 | deref_val = value_at (TYPE_TARGET_TYPE (type), | |
571 | unpack_pointer (type, valaddr + embedded_offset)); | |
572 | } | |
573 | /* Else, original_value isn't a synthetic reference or we don't have to print | |
574 | the reference's contents. | |
575 | ||
576 | Notice that for references to TYPE_CODE_STRUCT, 'set print object on' will | |
577 | cause original_value to be a not_lval instead of an lval_computed, | |
578 | which will make value_bits_synthetic_pointer return false. | |
579 | This happens because if options->objectprint is true, c_value_print will | |
580 | overwrite original_value's contents with the result of coercing | |
581 | the reference through value_addr, and then set its type back to | |
582 | TYPE_CODE_REF. In that case we don't have to coerce the reference again; | |
583 | we can simply treat it as non-synthetic and move on. */ | |
fe43fede SM |
584 | |
585 | if (options->addressprint) | |
586 | { | |
3326303b MG |
587 | const gdb_byte *address = (value_is_synthetic && type_is_defined |
588 | ? get_value_addr_contents (deref_val) | |
589 | : valaddr); | |
590 | ||
591 | print_ref_address (type, address, embedded_offset, stream); | |
fe43fede | 592 | |
fe43fede SM |
593 | if (options->deref_ref) |
594 | fputs_filtered (": ", stream); | |
595 | } | |
3326303b | 596 | |
fe43fede SM |
597 | if (options->deref_ref) |
598 | { | |
3326303b MG |
599 | if (type_is_defined) |
600 | common_val_print (deref_val, stream, recurse, options, | |
601 | current_language); | |
fe43fede SM |
602 | else |
603 | fputs_filtered ("???", stream); | |
604 | } | |
605 | } | |
606 | ||
81516450 DE |
607 | /* Helper function for generic_val_print_enum. |
608 | This is also used to print enums in TYPE_CODE_FLAGS values. */ | |
ef0bc0dd SM |
609 | |
610 | static void | |
81516450 DE |
611 | generic_val_print_enum_1 (struct type *type, LONGEST val, |
612 | struct ui_file *stream) | |
ef0bc0dd SM |
613 | { |
614 | unsigned int i; | |
615 | unsigned int len; | |
ef0bc0dd | 616 | |
ef0bc0dd | 617 | len = TYPE_NFIELDS (type); |
ef0bc0dd SM |
618 | for (i = 0; i < len; i++) |
619 | { | |
620 | QUIT; | |
621 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
622 | { | |
623 | break; | |
624 | } | |
625 | } | |
626 | if (i < len) | |
627 | { | |
3f0cbb04 TT |
628 | fputs_styled (TYPE_FIELD_NAME (type, i), variable_name_style.style (), |
629 | stream); | |
ef0bc0dd SM |
630 | } |
631 | else if (TYPE_FLAG_ENUM (type)) | |
632 | { | |
633 | int first = 1; | |
634 | ||
6740f0cc SM |
635 | /* We have a "flag" enum, so we try to decompose it into pieces as |
636 | appropriate. The enum may have multiple enumerators representing | |
637 | the same bit, in which case we choose to only print the first one | |
638 | we find. */ | |
ef0bc0dd SM |
639 | for (i = 0; i < len; ++i) |
640 | { | |
641 | QUIT; | |
642 | ||
edd45eb0 SM |
643 | ULONGEST enumval = TYPE_FIELD_ENUMVAL (type, i); |
644 | int nbits = count_one_bits_ll (enumval); | |
645 | ||
646 | gdb_assert (nbits == 0 || nbits == 1); | |
647 | ||
648 | if ((val & enumval) != 0) | |
ef0bc0dd | 649 | { |
373d7ac0 SM |
650 | if (first) |
651 | { | |
652 | fputs_filtered ("(", stream); | |
653 | first = 0; | |
654 | } | |
655 | else | |
ef0bc0dd | 656 | fputs_filtered (" | ", stream); |
ef0bc0dd SM |
657 | |
658 | val &= ~TYPE_FIELD_ENUMVAL (type, i); | |
3f0cbb04 TT |
659 | fputs_styled (TYPE_FIELD_NAME (type, i), |
660 | variable_name_style.style (), stream); | |
ef0bc0dd SM |
661 | } |
662 | } | |
663 | ||
373d7ac0 | 664 | if (val != 0) |
ef0bc0dd | 665 | { |
373d7ac0 SM |
666 | /* There are leftover bits, print them. */ |
667 | if (first) | |
668 | fputs_filtered ("(", stream); | |
669 | else | |
ef0bc0dd | 670 | fputs_filtered (" | ", stream); |
373d7ac0 | 671 | |
b29a2df0 SM |
672 | fputs_filtered ("unknown: 0x", stream); |
673 | print_longest (stream, 'x', 0, val); | |
373d7ac0 SM |
674 | fputs_filtered (")", stream); |
675 | } | |
676 | else if (first) | |
677 | { | |
678 | /* Nothing has been printed and the value is 0, the enum value must | |
679 | have been 0. */ | |
680 | fputs_filtered ("0", stream); | |
681 | } | |
682 | else | |
683 | { | |
684 | /* Something has been printed, close the parenthesis. */ | |
685 | fputs_filtered (")", stream); | |
ef0bc0dd | 686 | } |
ef0bc0dd SM |
687 | } |
688 | else | |
689 | print_longest (stream, 'd', 0, val); | |
690 | } | |
691 | ||
81516450 DE |
692 | /* generic_val_print helper for TYPE_CODE_ENUM. */ |
693 | ||
694 | static void | |
e8b24d9f | 695 | generic_val_print_enum (struct type *type, |
81516450 | 696 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 697 | struct value *original_value, |
81516450 DE |
698 | const struct value_print_options *options) |
699 | { | |
700 | LONGEST val; | |
701 | struct gdbarch *gdbarch = get_type_arch (type); | |
702 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
703 | ||
704 | if (options->format) | |
705 | { | |
e8b24d9f | 706 | val_print_scalar_formatted (type, embedded_offset, |
81516450 | 707 | original_value, options, 0, stream); |
81516450 | 708 | } |
e8b24d9f YQ |
709 | else |
710 | { | |
711 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
712 | ||
713 | val = unpack_long (type, valaddr + embedded_offset * unit_size); | |
81516450 | 714 | |
e8b24d9f YQ |
715 | generic_val_print_enum_1 (type, val, stream); |
716 | } | |
81516450 DE |
717 | } |
718 | ||
d93880bd SM |
719 | /* generic_val_print helper for TYPE_CODE_FLAGS. */ |
720 | ||
721 | static void | |
e8b24d9f | 722 | generic_val_print_flags (struct type *type, |
d93880bd | 723 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 724 | struct value *original_value, |
d93880bd SM |
725 | const struct value_print_options *options) |
726 | ||
727 | { | |
728 | if (options->format) | |
e8b24d9f | 729 | val_print_scalar_formatted (type, embedded_offset, original_value, |
d93880bd SM |
730 | options, 0, stream); |
731 | else | |
e8b24d9f YQ |
732 | { |
733 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
734 | ||
735 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); | |
736 | } | |
d93880bd SM |
737 | } |
738 | ||
4a8c372f SM |
739 | /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */ |
740 | ||
741 | static void | |
e8b24d9f | 742 | generic_val_print_func (struct type *type, |
4a8c372f SM |
743 | int embedded_offset, CORE_ADDR address, |
744 | struct ui_file *stream, | |
e8b24d9f | 745 | struct value *original_value, |
4a8c372f SM |
746 | const struct value_print_options *options) |
747 | { | |
748 | struct gdbarch *gdbarch = get_type_arch (type); | |
749 | ||
750 | if (options->format) | |
751 | { | |
e8b24d9f | 752 | val_print_scalar_formatted (type, embedded_offset, |
4a8c372f SM |
753 | original_value, options, 0, stream); |
754 | } | |
755 | else | |
756 | { | |
757 | /* FIXME, we should consider, at least for ANSI C language, | |
758 | eliminating the distinction made between FUNCs and POINTERs | |
759 | to FUNCs. */ | |
760 | fprintf_filtered (stream, "{"); | |
761 | type_print (type, "", stream, -1); | |
762 | fprintf_filtered (stream, "} "); | |
763 | /* Try to print what function it points to, and its address. */ | |
764 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
765 | } | |
766 | } | |
767 | ||
e5bead4b SM |
768 | /* generic_val_print helper for TYPE_CODE_BOOL. */ |
769 | ||
770 | static void | |
e8b24d9f | 771 | generic_val_print_bool (struct type *type, |
e5bead4b | 772 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 773 | struct value *original_value, |
e5bead4b SM |
774 | const struct value_print_options *options, |
775 | const struct generic_val_print_decorations *decorations) | |
776 | { | |
777 | LONGEST val; | |
3ae385af SM |
778 | struct gdbarch *gdbarch = get_type_arch (type); |
779 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e5bead4b SM |
780 | |
781 | if (options->format || options->output_format) | |
782 | { | |
783 | struct value_print_options opts = *options; | |
784 | opts.format = (options->format ? options->format | |
785 | : options->output_format); | |
e8b24d9f | 786 | val_print_scalar_formatted (type, embedded_offset, |
e5bead4b SM |
787 | original_value, &opts, 0, stream); |
788 | } | |
789 | else | |
790 | { | |
e8b24d9f YQ |
791 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
792 | ||
3ae385af | 793 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
e5bead4b SM |
794 | if (val == 0) |
795 | fputs_filtered (decorations->false_name, stream); | |
796 | else if (val == 1) | |
797 | fputs_filtered (decorations->true_name, stream); | |
798 | else | |
799 | print_longest (stream, 'd', 0, val); | |
800 | } | |
801 | } | |
802 | ||
b21b6342 SM |
803 | /* generic_val_print helper for TYPE_CODE_INT. */ |
804 | ||
805 | static void | |
e8b24d9f | 806 | generic_val_print_int (struct type *type, |
b21b6342 | 807 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 808 | struct value *original_value, |
b21b6342 SM |
809 | const struct value_print_options *options) |
810 | { | |
f12f6bad | 811 | struct value_print_options opts = *options; |
3ae385af | 812 | |
f12f6bad TT |
813 | opts.format = (options->format ? options->format |
814 | : options->output_format); | |
815 | val_print_scalar_formatted (type, embedded_offset, | |
816 | original_value, &opts, 0, stream); | |
b21b6342 SM |
817 | } |
818 | ||
385f5aff SM |
819 | /* generic_val_print helper for TYPE_CODE_CHAR. */ |
820 | ||
821 | static void | |
822 | generic_val_print_char (struct type *type, struct type *unresolved_type, | |
e8b24d9f | 823 | int embedded_offset, |
385f5aff | 824 | struct ui_file *stream, |
e8b24d9f | 825 | struct value *original_value, |
385f5aff SM |
826 | const struct value_print_options *options) |
827 | { | |
828 | LONGEST val; | |
3ae385af SM |
829 | struct gdbarch *gdbarch = get_type_arch (type); |
830 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
385f5aff SM |
831 | |
832 | if (options->format || options->output_format) | |
833 | { | |
834 | struct value_print_options opts = *options; | |
835 | ||
836 | opts.format = (options->format ? options->format | |
837 | : options->output_format); | |
e8b24d9f | 838 | val_print_scalar_formatted (type, embedded_offset, |
385f5aff SM |
839 | original_value, &opts, 0, stream); |
840 | } | |
841 | else | |
842 | { | |
e8b24d9f YQ |
843 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
844 | ||
3ae385af | 845 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
385f5aff SM |
846 | if (TYPE_UNSIGNED (type)) |
847 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
848 | else | |
849 | fprintf_filtered (stream, "%d", (int) val); | |
850 | fputs_filtered (" ", stream); | |
851 | LA_PRINT_CHAR (val, unresolved_type, stream); | |
852 | } | |
853 | } | |
854 | ||
fdf0cbc2 | 855 | /* generic_val_print helper for TYPE_CODE_FLT and TYPE_CODE_DECFLOAT. */ |
7784724b SM |
856 | |
857 | static void | |
e8b24d9f | 858 | generic_val_print_float (struct type *type, |
7784724b | 859 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 860 | struct value *original_value, |
7784724b SM |
861 | const struct value_print_options *options) |
862 | { | |
3ae385af SM |
863 | struct gdbarch *gdbarch = get_type_arch (type); |
864 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
865 | ||
7784724b SM |
866 | if (options->format) |
867 | { | |
e8b24d9f | 868 | val_print_scalar_formatted (type, embedded_offset, |
7784724b SM |
869 | original_value, options, 0, stream); |
870 | } | |
871 | else | |
872 | { | |
e8b24d9f YQ |
873 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
874 | ||
3ae385af | 875 | print_floating (valaddr + embedded_offset * unit_size, type, stream); |
7784724b SM |
876 | } |
877 | } | |
878 | ||
0c87c0bf SM |
879 | /* generic_val_print helper for TYPE_CODE_COMPLEX. */ |
880 | ||
881 | static void | |
e8b24d9f | 882 | generic_val_print_complex (struct type *type, |
0c87c0bf | 883 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 884 | struct value *original_value, |
0c87c0bf SM |
885 | const struct value_print_options *options, |
886 | const struct generic_val_print_decorations | |
887 | *decorations) | |
888 | { | |
3ae385af SM |
889 | struct gdbarch *gdbarch = get_type_arch (type); |
890 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e8b24d9f | 891 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af | 892 | |
0c87c0bf SM |
893 | fprintf_filtered (stream, "%s", decorations->complex_prefix); |
894 | if (options->format) | |
e8b24d9f | 895 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf SM |
896 | embedded_offset, original_value, options, 0, |
897 | stream); | |
898 | else | |
3ae385af SM |
899 | print_floating (valaddr + embedded_offset * unit_size, |
900 | TYPE_TARGET_TYPE (type), stream); | |
0c87c0bf SM |
901 | fprintf_filtered (stream, "%s", decorations->complex_infix); |
902 | if (options->format) | |
e8b24d9f | 903 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf | 904 | embedded_offset |
3ae385af | 905 | + type_length_units (TYPE_TARGET_TYPE (type)), |
0c87c0bf SM |
906 | original_value, options, 0, stream); |
907 | else | |
3ae385af | 908 | print_floating (valaddr + embedded_offset * unit_size |
0c87c0bf SM |
909 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), |
910 | TYPE_TARGET_TYPE (type), stream); | |
911 | fprintf_filtered (stream, "%s", decorations->complex_suffix); | |
912 | } | |
913 | ||
e88acd96 TT |
914 | /* A generic val_print that is suitable for use by language |
915 | implementations of the la_val_print method. This function can | |
916 | handle most type codes, though not all, notably exception | |
917 | TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by | |
918 | the caller. | |
919 | ||
920 | Most arguments are as to val_print. | |
921 | ||
922 | The additional DECORATIONS argument can be used to customize the | |
923 | output in some small, language-specific ways. */ | |
924 | ||
925 | void | |
e8b24d9f | 926 | generic_val_print (struct type *type, |
e88acd96 TT |
927 | int embedded_offset, CORE_ADDR address, |
928 | struct ui_file *stream, int recurse, | |
e8b24d9f | 929 | struct value *original_value, |
e88acd96 TT |
930 | const struct value_print_options *options, |
931 | const struct generic_val_print_decorations *decorations) | |
932 | { | |
e88acd96 | 933 | struct type *unresolved_type = type; |
e88acd96 | 934 | |
f168693b | 935 | type = check_typedef (type); |
e88acd96 TT |
936 | switch (TYPE_CODE (type)) |
937 | { | |
938 | case TYPE_CODE_ARRAY: | |
e8b24d9f | 939 | generic_val_print_array (type, embedded_offset, address, stream, |
00272ec4 | 940 | recurse, original_value, options, decorations); |
9f436164 | 941 | break; |
e88acd96 TT |
942 | |
943 | case TYPE_CODE_MEMBERPTR: | |
e8b24d9f | 944 | generic_val_print_memberptr (type, embedded_offset, stream, |
45000ea2 | 945 | original_value, options); |
e88acd96 TT |
946 | break; |
947 | ||
948 | case TYPE_CODE_PTR: | |
e8b24d9f | 949 | generic_val_print_ptr (type, embedded_offset, stream, |
81eb921a | 950 | original_value, options); |
e88acd96 TT |
951 | break; |
952 | ||
953 | case TYPE_CODE_REF: | |
aa006118 | 954 | case TYPE_CODE_RVALUE_REF: |
e8b24d9f | 955 | generic_val_print_ref (type, embedded_offset, stream, recurse, |
fe43fede | 956 | original_value, options); |
e88acd96 TT |
957 | break; |
958 | ||
959 | case TYPE_CODE_ENUM: | |
e8b24d9f | 960 | generic_val_print_enum (type, embedded_offset, stream, |
ef0bc0dd | 961 | original_value, options); |
e88acd96 TT |
962 | break; |
963 | ||
964 | case TYPE_CODE_FLAGS: | |
e8b24d9f | 965 | generic_val_print_flags (type, embedded_offset, stream, |
d93880bd | 966 | original_value, options); |
e88acd96 TT |
967 | break; |
968 | ||
969 | case TYPE_CODE_FUNC: | |
970 | case TYPE_CODE_METHOD: | |
e8b24d9f | 971 | generic_val_print_func (type, embedded_offset, address, stream, |
4a8c372f | 972 | original_value, options); |
e88acd96 TT |
973 | break; |
974 | ||
975 | case TYPE_CODE_BOOL: | |
e8b24d9f | 976 | generic_val_print_bool (type, embedded_offset, stream, |
e5bead4b | 977 | original_value, options, decorations); |
e88acd96 TT |
978 | break; |
979 | ||
980 | case TYPE_CODE_RANGE: | |
0c9c3474 | 981 | /* FIXME: create_static_range_type does not set the unsigned bit in a |
e88acd96 TT |
982 | range type (I think it probably should copy it from the |
983 | target type), so we won't print values which are too large to | |
984 | fit in a signed integer correctly. */ | |
985 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just | |
986 | print with the target type, though, because the size of our | |
987 | type and the target type might differ). */ | |
988 | ||
989 | /* FALLTHROUGH */ | |
990 | ||
991 | case TYPE_CODE_INT: | |
e8b24d9f | 992 | generic_val_print_int (type, embedded_offset, stream, |
b21b6342 | 993 | original_value, options); |
e88acd96 TT |
994 | break; |
995 | ||
996 | case TYPE_CODE_CHAR: | |
e8b24d9f | 997 | generic_val_print_char (type, unresolved_type, embedded_offset, |
385f5aff | 998 | stream, original_value, options); |
e88acd96 TT |
999 | break; |
1000 | ||
1001 | case TYPE_CODE_FLT: | |
fdf0cbc2 | 1002 | case TYPE_CODE_DECFLOAT: |
e8b24d9f | 1003 | generic_val_print_float (type, embedded_offset, stream, |
7784724b | 1004 | original_value, options); |
e88acd96 TT |
1005 | break; |
1006 | ||
e88acd96 TT |
1007 | case TYPE_CODE_VOID: |
1008 | fputs_filtered (decorations->void_name, stream); | |
1009 | break; | |
1010 | ||
1011 | case TYPE_CODE_ERROR: | |
1012 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); | |
1013 | break; | |
1014 | ||
1015 | case TYPE_CODE_UNDEF: | |
a9ff5f12 UW |
1016 | /* This happens (without TYPE_STUB set) on systems which don't use |
1017 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" | |
1018 | and no complete type for struct foo in that file. */ | |
7f6aba03 | 1019 | fprintf_styled (stream, metadata_style.style (), _("<incomplete type>")); |
e88acd96 TT |
1020 | break; |
1021 | ||
1022 | case TYPE_CODE_COMPLEX: | |
e8b24d9f | 1023 | generic_val_print_complex (type, embedded_offset, stream, |
0c87c0bf | 1024 | original_value, options, decorations); |
e88acd96 TT |
1025 | break; |
1026 | ||
1027 | case TYPE_CODE_UNION: | |
1028 | case TYPE_CODE_STRUCT: | |
1029 | case TYPE_CODE_METHODPTR: | |
1030 | default: | |
1031 | error (_("Unhandled type code %d in symbol table."), | |
1032 | TYPE_CODE (type)); | |
1033 | } | |
e88acd96 TT |
1034 | } |
1035 | ||
32b72a42 | 1036 | /* Print using the given LANGUAGE the data of type TYPE located at |
e8b24d9f YQ |
1037 | VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came |
1038 | from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto | |
1039 | stdio stream STREAM according to OPTIONS. VAL is the whole object | |
1040 | that came from ADDRESS. | |
32b72a42 PA |
1041 | |
1042 | The language printers will pass down an adjusted EMBEDDED_OFFSET to | |
1043 | further helper subroutines as subfields of TYPE are printed. In | |
e8b24d9f | 1044 | such cases, VAL is passed down unadjusted, so |
32b72a42 PA |
1045 | that VAL can be queried for metadata about the contents data being |
1046 | printed, using EMBEDDED_OFFSET as an offset into VAL's contents | |
1047 | buffer. For example: "has this field been optimized out", or "I'm | |
1048 | printing an object while inspecting a traceframe; has this | |
1049 | particular piece of data been collected?". | |
1050 | ||
1051 | RECURSE indicates the amount of indentation to supply before | |
1052 | continuation lines; this amount is roughly twice the value of | |
35c0084b | 1053 | RECURSE. */ |
32b72a42 | 1054 | |
35c0084b | 1055 | void |
e8b24d9f | 1056 | val_print (struct type *type, LONGEST embedded_offset, |
79a45b7d | 1057 | CORE_ADDR address, struct ui_file *stream, int recurse, |
e8b24d9f | 1058 | struct value *val, |
79a45b7d | 1059 | const struct value_print_options *options, |
d8ca156b | 1060 | const struct language_defn *language) |
c906108c | 1061 | { |
19ca80ba | 1062 | int ret = 0; |
79a45b7d | 1063 | struct value_print_options local_opts = *options; |
c906108c | 1064 | struct type *real_type = check_typedef (type); |
79a45b7d | 1065 | |
2a998fc0 DE |
1066 | if (local_opts.prettyformat == Val_prettyformat_default) |
1067 | local_opts.prettyformat = (local_opts.prettyformat_structs | |
1068 | ? Val_prettyformat : Val_no_prettyformat); | |
c5aa993b | 1069 | |
c906108c SS |
1070 | QUIT; |
1071 | ||
1072 | /* Ensure that the type is complete and not just a stub. If the type is | |
1073 | only a stub and we can't find and substitute its complete type, then | |
1074 | print appropriate string and return. */ | |
1075 | ||
74a9bb82 | 1076 | if (TYPE_STUB (real_type)) |
c906108c | 1077 | { |
7f6aba03 | 1078 | fprintf_styled (stream, metadata_style.style (), _("<incomplete type>")); |
35c0084b | 1079 | return; |
c906108c | 1080 | } |
c5aa993b | 1081 | |
0e03807e | 1082 | if (!valprint_check_validity (stream, real_type, embedded_offset, val)) |
35c0084b | 1083 | return; |
0e03807e | 1084 | |
a6bac58e TT |
1085 | if (!options->raw) |
1086 | { | |
668e1674 | 1087 | ret = apply_ext_lang_val_pretty_printer (type, embedded_offset, |
6dddc817 DE |
1088 | address, stream, recurse, |
1089 | val, options, language); | |
a6bac58e | 1090 | if (ret) |
35c0084b | 1091 | return; |
a6bac58e TT |
1092 | } |
1093 | ||
1094 | /* Handle summary mode. If the value is a scalar, print it; | |
1095 | otherwise, print an ellipsis. */ | |
6211c335 | 1096 | if (options->summary && !val_print_scalar_type_p (type)) |
a6bac58e TT |
1097 | { |
1098 | fprintf_filtered (stream, "..."); | |
35c0084b | 1099 | return; |
a6bac58e TT |
1100 | } |
1101 | ||
2e62ab40 AB |
1102 | /* If this value is too deep then don't print it. */ |
1103 | if (!val_print_scalar_or_string_type_p (type, language) | |
1104 | && val_print_check_max_depth (stream, recurse, options, language)) | |
1105 | return; | |
1106 | ||
a70b8144 | 1107 | try |
19ca80ba | 1108 | { |
e8b24d9f | 1109 | language->la_val_print (type, embedded_offset, address, |
d3eab38a TT |
1110 | stream, recurse, val, |
1111 | &local_opts); | |
19ca80ba | 1112 | } |
230d2906 | 1113 | catch (const gdb_exception_error &except) |
492d29ea | 1114 | { |
7f6aba03 TT |
1115 | fprintf_styled (stream, metadata_style.style (), |
1116 | _("<error reading variable>")); | |
492d29ea | 1117 | } |
c906108c SS |
1118 | } |
1119 | ||
2e62ab40 AB |
1120 | /* See valprint.h. */ |
1121 | ||
1122 | bool | |
1123 | val_print_check_max_depth (struct ui_file *stream, int recurse, | |
1124 | const struct value_print_options *options, | |
1125 | const struct language_defn *language) | |
1126 | { | |
1127 | if (options->max_depth > -1 && recurse >= options->max_depth) | |
1128 | { | |
1129 | gdb_assert (language->la_struct_too_deep_ellipsis != NULL); | |
1130 | fputs_filtered (language->la_struct_too_deep_ellipsis, stream); | |
1131 | return true; | |
1132 | } | |
1133 | ||
1134 | return false; | |
1135 | } | |
1136 | ||
806048c6 | 1137 | /* Check whether the value VAL is printable. Return 1 if it is; |
6501578c YQ |
1138 | return 0 and print an appropriate error message to STREAM according to |
1139 | OPTIONS if it is not. */ | |
c906108c | 1140 | |
806048c6 | 1141 | static int |
6501578c YQ |
1142 | value_check_printable (struct value *val, struct ui_file *stream, |
1143 | const struct value_print_options *options) | |
c906108c SS |
1144 | { |
1145 | if (val == 0) | |
1146 | { | |
7f6aba03 TT |
1147 | fprintf_styled (stream, metadata_style.style (), |
1148 | _("<address of value unknown>")); | |
c906108c SS |
1149 | return 0; |
1150 | } | |
806048c6 | 1151 | |
0e03807e | 1152 | if (value_entirely_optimized_out (val)) |
c906108c | 1153 | { |
6211c335 | 1154 | if (options->summary && !val_print_scalar_type_p (value_type (val))) |
6501578c YQ |
1155 | fprintf_filtered (stream, "..."); |
1156 | else | |
901461f8 | 1157 | val_print_optimized_out (val, stream); |
c906108c SS |
1158 | return 0; |
1159 | } | |
806048c6 | 1160 | |
eebc056c AB |
1161 | if (value_entirely_unavailable (val)) |
1162 | { | |
1163 | if (options->summary && !val_print_scalar_type_p (value_type (val))) | |
1164 | fprintf_filtered (stream, "..."); | |
1165 | else | |
1166 | val_print_unavailable (stream); | |
1167 | return 0; | |
1168 | } | |
1169 | ||
bc3b79fd TJB |
1170 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION) |
1171 | { | |
7f6aba03 TT |
1172 | fprintf_styled (stream, metadata_style.style (), |
1173 | _("<internal function %s>"), | |
1174 | value_internal_function_name (val)); | |
bc3b79fd TJB |
1175 | return 0; |
1176 | } | |
1177 | ||
3f2f83dd KB |
1178 | if (type_not_associated (value_type (val))) |
1179 | { | |
1180 | val_print_not_associated (stream); | |
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | if (type_not_allocated (value_type (val))) | |
1185 | { | |
1186 | val_print_not_allocated (stream); | |
1187 | return 0; | |
1188 | } | |
1189 | ||
806048c6 DJ |
1190 | return 1; |
1191 | } | |
1192 | ||
d8ca156b | 1193 | /* Print using the given LANGUAGE the value VAL onto stream STREAM according |
79a45b7d | 1194 | to OPTIONS. |
806048c6 | 1195 | |
806048c6 DJ |
1196 | This is a preferable interface to val_print, above, because it uses |
1197 | GDB's value mechanism. */ | |
1198 | ||
a1f5dd1b | 1199 | void |
79a45b7d TT |
1200 | common_val_print (struct value *val, struct ui_file *stream, int recurse, |
1201 | const struct value_print_options *options, | |
d8ca156b | 1202 | const struct language_defn *language) |
806048c6 | 1203 | { |
6501578c | 1204 | if (!value_check_printable (val, stream, options)) |
a1f5dd1b | 1205 | return; |
806048c6 | 1206 | |
0c3acc09 JB |
1207 | if (language->la_language == language_ada) |
1208 | /* The value might have a dynamic type, which would cause trouble | |
1209 | below when trying to extract the value contents (since the value | |
1210 | size is determined from the type size which is unknown). So | |
1211 | get a fixed representation of our value. */ | |
1212 | val = ada_to_fixed_value (val); | |
1213 | ||
7d45f3df YQ |
1214 | if (value_lazy (val)) |
1215 | value_fetch_lazy (val); | |
1216 | ||
e8b24d9f | 1217 | val_print (value_type (val), |
a1f5dd1b TT |
1218 | value_embedded_offset (val), value_address (val), |
1219 | stream, recurse, | |
1220 | val, options, language); | |
806048c6 DJ |
1221 | } |
1222 | ||
7348c5e1 | 1223 | /* Print on stream STREAM the value VAL according to OPTIONS. The value |
8e069a98 | 1224 | is printed using the current_language syntax. */ |
7348c5e1 | 1225 | |
8e069a98 | 1226 | void |
79a45b7d TT |
1227 | value_print (struct value *val, struct ui_file *stream, |
1228 | const struct value_print_options *options) | |
806048c6 | 1229 | { |
6501578c | 1230 | if (!value_check_printable (val, stream, options)) |
8e069a98 | 1231 | return; |
806048c6 | 1232 | |
a6bac58e TT |
1233 | if (!options->raw) |
1234 | { | |
6dddc817 DE |
1235 | int r |
1236 | = apply_ext_lang_val_pretty_printer (value_type (val), | |
6dddc817 DE |
1237 | value_embedded_offset (val), |
1238 | value_address (val), | |
1239 | stream, 0, | |
1240 | val, options, current_language); | |
a109c7c1 | 1241 | |
a6bac58e | 1242 | if (r) |
8e069a98 | 1243 | return; |
a6bac58e TT |
1244 | } |
1245 | ||
8e069a98 | 1246 | LA_VALUE_PRINT (val, stream, options); |
c906108c SS |
1247 | } |
1248 | ||
81516450 | 1249 | static void |
4f2aea11 MK |
1250 | val_print_type_code_flags (struct type *type, const gdb_byte *valaddr, |
1251 | struct ui_file *stream) | |
1252 | { | |
befae759 | 1253 | ULONGEST val = unpack_long (type, valaddr); |
81516450 DE |
1254 | int field, nfields = TYPE_NFIELDS (type); |
1255 | struct gdbarch *gdbarch = get_type_arch (type); | |
1256 | struct type *bool_type = builtin_type (gdbarch)->builtin_bool; | |
4f2aea11 | 1257 | |
81516450 DE |
1258 | fputs_filtered ("[", stream); |
1259 | for (field = 0; field < nfields; field++) | |
4f2aea11 | 1260 | { |
81516450 | 1261 | if (TYPE_FIELD_NAME (type, field)[0] != '\0') |
4f2aea11 | 1262 | { |
81516450 DE |
1263 | struct type *field_type = TYPE_FIELD_TYPE (type, field); |
1264 | ||
1265 | if (field_type == bool_type | |
1266 | /* We require boolean types here to be one bit wide. This is a | |
1267 | problematic place to notify the user of an internal error | |
1268 | though. Instead just fall through and print the field as an | |
1269 | int. */ | |
1270 | && TYPE_FIELD_BITSIZE (type, field) == 1) | |
1271 | { | |
1272 | if (val & ((ULONGEST)1 << TYPE_FIELD_BITPOS (type, field))) | |
3f0cbb04 TT |
1273 | fprintf_filtered |
1274 | (stream, " %ps", | |
1275 | styled_string (variable_name_style.style (), | |
1276 | TYPE_FIELD_NAME (type, field))); | |
81516450 | 1277 | } |
4f2aea11 | 1278 | else |
81516450 DE |
1279 | { |
1280 | unsigned field_len = TYPE_FIELD_BITSIZE (type, field); | |
1281 | ULONGEST field_val | |
1282 | = val >> (TYPE_FIELD_BITPOS (type, field) - field_len + 1); | |
1283 | ||
1284 | if (field_len < sizeof (ULONGEST) * TARGET_CHAR_BIT) | |
1285 | field_val &= ((ULONGEST) 1 << field_len) - 1; | |
3f0cbb04 TT |
1286 | fprintf_filtered (stream, " %ps=", |
1287 | styled_string (variable_name_style.style (), | |
1288 | TYPE_FIELD_NAME (type, field))); | |
81516450 DE |
1289 | if (TYPE_CODE (field_type) == TYPE_CODE_ENUM) |
1290 | generic_val_print_enum_1 (field_type, field_val, stream); | |
1291 | else | |
1292 | print_longest (stream, 'd', 0, field_val); | |
1293 | } | |
4f2aea11 MK |
1294 | } |
1295 | } | |
81516450 | 1296 | fputs_filtered (" ]", stream); |
19c37f24 | 1297 | } |
ab2188aa PA |
1298 | |
1299 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
1300 | according to OPTIONS and SIZE on STREAM. Format i is not supported | |
1301 | at this level. | |
1302 | ||
1303 | This is how the elements of an array or structure are printed | |
1304 | with a format. */ | |
ab2188aa PA |
1305 | |
1306 | void | |
1307 | val_print_scalar_formatted (struct type *type, | |
e8b24d9f YQ |
1308 | LONGEST embedded_offset, |
1309 | struct value *val, | |
ab2188aa PA |
1310 | const struct value_print_options *options, |
1311 | int size, | |
1312 | struct ui_file *stream) | |
1313 | { | |
3ae385af SM |
1314 | struct gdbarch *arch = get_type_arch (type); |
1315 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
1316 | ||
ab2188aa | 1317 | gdb_assert (val != NULL); |
ab2188aa PA |
1318 | |
1319 | /* If we get here with a string format, try again without it. Go | |
1320 | all the way back to the language printers, which may call us | |
1321 | again. */ | |
1322 | if (options->format == 's') | |
1323 | { | |
1324 | struct value_print_options opts = *options; | |
1325 | opts.format = 0; | |
1326 | opts.deref_ref = 0; | |
e8b24d9f | 1327 | val_print (type, embedded_offset, 0, stream, 0, val, &opts, |
ab2188aa PA |
1328 | current_language); |
1329 | return; | |
1330 | } | |
1331 | ||
e8b24d9f YQ |
1332 | /* value_contents_for_printing fetches all VAL's contents. They are |
1333 | needed to check whether VAL is optimized-out or unavailable | |
1334 | below. */ | |
1335 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
1336 | ||
ab2188aa PA |
1337 | /* A scalar object that does not have all bits available can't be |
1338 | printed, because all bits contribute to its representation. */ | |
9a0dc9e3 PA |
1339 | if (value_bits_any_optimized_out (val, |
1340 | TARGET_CHAR_BIT * embedded_offset, | |
1341 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
901461f8 | 1342 | val_print_optimized_out (val, stream); |
4e07d55f PA |
1343 | else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) |
1344 | val_print_unavailable (stream); | |
ab2188aa | 1345 | else |
3ae385af | 1346 | print_scalar_formatted (valaddr + embedded_offset * unit_size, type, |
ab2188aa | 1347 | options, size, stream); |
4f2aea11 MK |
1348 | } |
1349 | ||
c906108c SS |
1350 | /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. |
1351 | The raison d'etre of this function is to consolidate printing of | |
581e13c1 | 1352 | LONG_LONG's into this one function. The format chars b,h,w,g are |
bb599908 | 1353 | from print_scalar_formatted(). Numbers are printed using C |
581e13c1 | 1354 | format. |
bb599908 PH |
1355 | |
1356 | USE_C_FORMAT means to use C format in all cases. Without it, | |
1357 | 'o' and 'x' format do not include the standard C radix prefix | |
1358 | (leading 0 or 0x). | |
1359 | ||
1360 | Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL | |
85102364 | 1361 | and was intended to request formatting according to the current |
bb599908 PH |
1362 | language and would be used for most integers that GDB prints. The |
1363 | exceptional cases were things like protocols where the format of | |
1364 | the integer is a protocol thing, not a user-visible thing). The | |
1365 | parameter remains to preserve the information of what things might | |
1366 | be printed with language-specific format, should we ever resurrect | |
581e13c1 | 1367 | that capability. */ |
c906108c SS |
1368 | |
1369 | void | |
bb599908 | 1370 | print_longest (struct ui_file *stream, int format, int use_c_format, |
fba45db2 | 1371 | LONGEST val_long) |
c906108c | 1372 | { |
2bfb72ee AC |
1373 | const char *val; |
1374 | ||
c906108c SS |
1375 | switch (format) |
1376 | { | |
1377 | case 'd': | |
bb599908 | 1378 | val = int_string (val_long, 10, 1, 0, 1); break; |
c906108c | 1379 | case 'u': |
bb599908 | 1380 | val = int_string (val_long, 10, 0, 0, 1); break; |
c906108c | 1381 | case 'x': |
bb599908 | 1382 | val = int_string (val_long, 16, 0, 0, use_c_format); break; |
c906108c | 1383 | case 'b': |
bb599908 | 1384 | val = int_string (val_long, 16, 0, 2, 1); break; |
c906108c | 1385 | case 'h': |
bb599908 | 1386 | val = int_string (val_long, 16, 0, 4, 1); break; |
c906108c | 1387 | case 'w': |
bb599908 | 1388 | val = int_string (val_long, 16, 0, 8, 1); break; |
c906108c | 1389 | case 'g': |
bb599908 | 1390 | val = int_string (val_long, 16, 0, 16, 1); break; |
c906108c SS |
1391 | break; |
1392 | case 'o': | |
bb599908 | 1393 | val = int_string (val_long, 8, 0, 0, use_c_format); break; |
c906108c | 1394 | default: |
3e43a32a MS |
1395 | internal_error (__FILE__, __LINE__, |
1396 | _("failed internal consistency check")); | |
bb599908 | 1397 | } |
2bfb72ee | 1398 | fputs_filtered (val, stream); |
c906108c SS |
1399 | } |
1400 | ||
c906108c SS |
1401 | /* This used to be a macro, but I don't think it is called often enough |
1402 | to merit such treatment. */ | |
1403 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of | |
1404 | arguments to a function, number in a value history, register number, etc.) | |
1405 | where the value must not be larger than can fit in an int. */ | |
1406 | ||
1407 | int | |
fba45db2 | 1408 | longest_to_int (LONGEST arg) |
c906108c | 1409 | { |
581e13c1 | 1410 | /* Let the compiler do the work. */ |
c906108c SS |
1411 | int rtnval = (int) arg; |
1412 | ||
581e13c1 | 1413 | /* Check for overflows or underflows. */ |
c906108c SS |
1414 | if (sizeof (LONGEST) > sizeof (int)) |
1415 | { | |
1416 | if (rtnval != arg) | |
1417 | { | |
8a3fe4f8 | 1418 | error (_("Value out of range.")); |
c906108c SS |
1419 | } |
1420 | } | |
1421 | return (rtnval); | |
1422 | } | |
1423 | ||
fdf0cbc2 UW |
1424 | /* Print a floating point value of floating-point type TYPE, |
1425 | pointed to in GDB by VALADDR, on STREAM. */ | |
c906108c SS |
1426 | |
1427 | void | |
fc1a4b47 | 1428 | print_floating (const gdb_byte *valaddr, struct type *type, |
c84141d6 | 1429 | struct ui_file *stream) |
c906108c | 1430 | { |
f69fdf9b | 1431 | std::string str = target_float_to_string (valaddr, type); |
3b4b2f16 | 1432 | fputs_filtered (str.c_str (), stream); |
7678ef8f TJB |
1433 | } |
1434 | ||
c5aa993b | 1435 | void |
fc1a4b47 | 1436 | print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 | 1437 | unsigned len, enum bfd_endian byte_order, bool zero_pad) |
c906108c | 1438 | { |
fc1a4b47 | 1439 | const gdb_byte *p; |
745b8ca0 | 1440 | unsigned int i; |
c5aa993b | 1441 | int b; |
30a25466 | 1442 | bool seen_a_one = false; |
c906108c SS |
1443 | |
1444 | /* Declared "int" so it will be signed. | |
581e13c1 MS |
1445 | This ensures that right shift will shift in zeros. */ |
1446 | ||
c5aa993b | 1447 | const int mask = 0x080; |
c906108c | 1448 | |
d44e8473 | 1449 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1450 | { |
1451 | for (p = valaddr; | |
1452 | p < valaddr + len; | |
1453 | p++) | |
1454 | { | |
c5aa993b | 1455 | /* Every byte has 8 binary characters; peel off |
581e13c1 MS |
1456 | and print from the MSB end. */ |
1457 | ||
d3abe1c8 | 1458 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1459 | { |
1460 | if (*p & (mask >> i)) | |
30a25466 | 1461 | b = '1'; |
c5aa993b | 1462 | else |
30a25466 | 1463 | b = '0'; |
c5aa993b | 1464 | |
30a25466 TT |
1465 | if (zero_pad || seen_a_one || b == '1') |
1466 | fputc_filtered (b, stream); | |
1467 | if (b == '1') | |
1468 | seen_a_one = true; | |
c5aa993b | 1469 | } |
c906108c SS |
1470 | } |
1471 | } | |
1472 | else | |
1473 | { | |
1474 | for (p = valaddr + len - 1; | |
1475 | p >= valaddr; | |
1476 | p--) | |
1477 | { | |
d3abe1c8 | 1478 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1479 | { |
1480 | if (*p & (mask >> i)) | |
30a25466 | 1481 | b = '1'; |
c5aa993b | 1482 | else |
30a25466 | 1483 | b = '0'; |
c5aa993b | 1484 | |
30a25466 TT |
1485 | if (zero_pad || seen_a_one || b == '1') |
1486 | fputc_filtered (b, stream); | |
1487 | if (b == '1') | |
1488 | seen_a_one = true; | |
c5aa993b | 1489 | } |
c906108c SS |
1490 | } |
1491 | } | |
30a25466 TT |
1492 | |
1493 | /* When not zero-padding, ensure that something is printed when the | |
1494 | input is 0. */ | |
1495 | if (!zero_pad && !seen_a_one) | |
1496 | fputc_filtered ('0', stream); | |
1497 | } | |
1498 | ||
1499 | /* A helper for print_octal_chars that emits a single octal digit, | |
1500 | optionally suppressing it if is zero and updating SEEN_A_ONE. */ | |
1501 | ||
1502 | static void | |
1503 | emit_octal_digit (struct ui_file *stream, bool *seen_a_one, int digit) | |
1504 | { | |
1505 | if (*seen_a_one || digit != 0) | |
1506 | fprintf_filtered (stream, "%o", digit); | |
1507 | if (digit != 0) | |
1508 | *seen_a_one = true; | |
c906108c SS |
1509 | } |
1510 | ||
1511 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
1512 | Print it in octal on stream or format it in buf. */ |
1513 | ||
c906108c | 1514 | void |
fc1a4b47 | 1515 | print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1516 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1517 | { |
fc1a4b47 | 1518 | const gdb_byte *p; |
c906108c | 1519 | unsigned char octa1, octa2, octa3, carry; |
c5aa993b JM |
1520 | int cycle; |
1521 | ||
c906108c SS |
1522 | /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track |
1523 | * the extra bits, which cycle every three bytes: | |
1524 | * | |
1525 | * Byte side: 0 1 2 3 | |
1526 | * | | | | | |
1527 | * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 | | |
1528 | * | |
1529 | * Octal side: 0 1 carry 3 4 carry ... | |
1530 | * | |
1531 | * Cycle number: 0 1 2 | |
1532 | * | |
1533 | * But of course we are printing from the high side, so we have to | |
1534 | * figure out where in the cycle we are so that we end up with no | |
1535 | * left over bits at the end. | |
1536 | */ | |
1537 | #define BITS_IN_OCTAL 3 | |
1538 | #define HIGH_ZERO 0340 | |
d6382fff | 1539 | #define LOW_ZERO 0034 |
c906108c | 1540 | #define CARRY_ZERO 0003 |
d6382fff TT |
1541 | static_assert (HIGH_ZERO + LOW_ZERO + CARRY_ZERO == 0xff, |
1542 | "cycle zero constants are wrong"); | |
c906108c SS |
1543 | #define HIGH_ONE 0200 |
1544 | #define MID_ONE 0160 | |
1545 | #define LOW_ONE 0016 | |
1546 | #define CARRY_ONE 0001 | |
d6382fff TT |
1547 | static_assert (HIGH_ONE + MID_ONE + LOW_ONE + CARRY_ONE == 0xff, |
1548 | "cycle one constants are wrong"); | |
c906108c SS |
1549 | #define HIGH_TWO 0300 |
1550 | #define MID_TWO 0070 | |
1551 | #define LOW_TWO 0007 | |
d6382fff TT |
1552 | static_assert (HIGH_TWO + MID_TWO + LOW_TWO == 0xff, |
1553 | "cycle two constants are wrong"); | |
c906108c SS |
1554 | |
1555 | /* For 32 we start in cycle 2, with two bits and one bit carry; | |
581e13c1 MS |
1556 | for 64 in cycle in cycle 1, with one bit and a two bit carry. */ |
1557 | ||
d3abe1c8 | 1558 | cycle = (len * HOST_CHAR_BIT) % BITS_IN_OCTAL; |
c906108c | 1559 | carry = 0; |
c5aa993b | 1560 | |
bb599908 | 1561 | fputs_filtered ("0", stream); |
30a25466 | 1562 | bool seen_a_one = false; |
d44e8473 | 1563 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1564 | { |
1565 | for (p = valaddr; | |
1566 | p < valaddr + len; | |
1567 | p++) | |
1568 | { | |
c5aa993b JM |
1569 | switch (cycle) |
1570 | { | |
1571 | case 0: | |
581e13c1 MS |
1572 | /* No carry in, carry out two bits. */ |
1573 | ||
c5aa993b JM |
1574 | octa1 = (HIGH_ZERO & *p) >> 5; |
1575 | octa2 = (LOW_ZERO & *p) >> 2; | |
1576 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1577 | emit_octal_digit (stream, &seen_a_one, octa1); |
1578 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1579 | break; |
1580 | ||
1581 | case 1: | |
581e13c1 MS |
1582 | /* Carry in two bits, carry out one bit. */ |
1583 | ||
c5aa993b JM |
1584 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1585 | octa2 = (MID_ONE & *p) >> 4; | |
1586 | octa3 = (LOW_ONE & *p) >> 1; | |
1587 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1588 | emit_octal_digit (stream, &seen_a_one, octa1); |
1589 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1590 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1591 | break; |
1592 | ||
1593 | case 2: | |
581e13c1 MS |
1594 | /* Carry in one bit, no carry out. */ |
1595 | ||
c5aa993b JM |
1596 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1597 | octa2 = (MID_TWO & *p) >> 3; | |
1598 | octa3 = (LOW_TWO & *p); | |
1599 | carry = 0; | |
30a25466 TT |
1600 | emit_octal_digit (stream, &seen_a_one, octa1); |
1601 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1602 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1603 | break; |
1604 | ||
1605 | default: | |
8a3fe4f8 | 1606 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1607 | } |
1608 | ||
1609 | cycle++; | |
1610 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1611 | } |
1612 | } | |
1613 | else | |
1614 | { | |
1615 | for (p = valaddr + len - 1; | |
1616 | p >= valaddr; | |
1617 | p--) | |
1618 | { | |
c5aa993b JM |
1619 | switch (cycle) |
1620 | { | |
1621 | case 0: | |
1622 | /* Carry out, no carry in */ | |
581e13c1 | 1623 | |
c5aa993b JM |
1624 | octa1 = (HIGH_ZERO & *p) >> 5; |
1625 | octa2 = (LOW_ZERO & *p) >> 2; | |
1626 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1627 | emit_octal_digit (stream, &seen_a_one, octa1); |
1628 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1629 | break; |
1630 | ||
1631 | case 1: | |
1632 | /* Carry in, carry out */ | |
581e13c1 | 1633 | |
c5aa993b JM |
1634 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1635 | octa2 = (MID_ONE & *p) >> 4; | |
1636 | octa3 = (LOW_ONE & *p) >> 1; | |
1637 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1638 | emit_octal_digit (stream, &seen_a_one, octa1); |
1639 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1640 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1641 | break; |
1642 | ||
1643 | case 2: | |
1644 | /* Carry in, no carry out */ | |
581e13c1 | 1645 | |
c5aa993b JM |
1646 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1647 | octa2 = (MID_TWO & *p) >> 3; | |
1648 | octa3 = (LOW_TWO & *p); | |
1649 | carry = 0; | |
30a25466 TT |
1650 | emit_octal_digit (stream, &seen_a_one, octa1); |
1651 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1652 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1653 | break; |
1654 | ||
1655 | default: | |
8a3fe4f8 | 1656 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1657 | } |
1658 | ||
1659 | cycle++; | |
1660 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1661 | } |
1662 | } | |
1663 | ||
c906108c SS |
1664 | } |
1665 | ||
4ac0cb1c TT |
1666 | /* Possibly negate the integer represented by BYTES. It contains LEN |
1667 | bytes in the specified byte order. If the integer is negative, | |
1668 | copy it into OUT_VEC, negate it, and return true. Otherwise, do | |
1669 | nothing and return false. */ | |
1670 | ||
1671 | static bool | |
1672 | maybe_negate_by_bytes (const gdb_byte *bytes, unsigned len, | |
1673 | enum bfd_endian byte_order, | |
d5722aa2 | 1674 | gdb::byte_vector *out_vec) |
4ac0cb1c TT |
1675 | { |
1676 | gdb_byte sign_byte; | |
eb77c9df | 1677 | gdb_assert (len > 0); |
4ac0cb1c TT |
1678 | if (byte_order == BFD_ENDIAN_BIG) |
1679 | sign_byte = bytes[0]; | |
1680 | else | |
1681 | sign_byte = bytes[len - 1]; | |
1682 | if ((sign_byte & 0x80) == 0) | |
1683 | return false; | |
1684 | ||
1685 | out_vec->resize (len); | |
1686 | ||
1687 | /* Compute -x == 1 + ~x. */ | |
1688 | if (byte_order == BFD_ENDIAN_LITTLE) | |
1689 | { | |
1690 | unsigned carry = 1; | |
1691 | for (unsigned i = 0; i < len; ++i) | |
1692 | { | |
1693 | unsigned tem = (0xff & ~bytes[i]) + carry; | |
1694 | (*out_vec)[i] = tem & 0xff; | |
1695 | carry = tem / 256; | |
1696 | } | |
1697 | } | |
1698 | else | |
1699 | { | |
1700 | unsigned carry = 1; | |
1701 | for (unsigned i = len; i > 0; --i) | |
1702 | { | |
1703 | unsigned tem = (0xff & ~bytes[i - 1]) + carry; | |
1704 | (*out_vec)[i - 1] = tem & 0xff; | |
1705 | carry = tem / 256; | |
1706 | } | |
1707 | } | |
1708 | ||
1709 | return true; | |
1710 | } | |
1711 | ||
c906108c | 1712 | /* VALADDR points to an integer of LEN bytes. |
581e13c1 MS |
1713 | Print it in decimal on stream or format it in buf. */ |
1714 | ||
c906108c | 1715 | void |
fc1a4b47 | 1716 | print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
4ac0cb1c TT |
1717 | unsigned len, bool is_signed, |
1718 | enum bfd_endian byte_order) | |
c906108c SS |
1719 | { |
1720 | #define TEN 10 | |
c5aa993b | 1721 | #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */ |
c906108c SS |
1722 | #define CARRY_LEFT( x ) ((x) % TEN) |
1723 | #define SHIFT( x ) ((x) << 4) | |
c906108c SS |
1724 | #define LOW_NIBBLE( x ) ( (x) & 0x00F) |
1725 | #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4) | |
1726 | ||
fc1a4b47 | 1727 | const gdb_byte *p; |
c5aa993b JM |
1728 | int carry; |
1729 | int decimal_len; | |
1730 | int i, j, decimal_digits; | |
1731 | int dummy; | |
1732 | int flip; | |
1733 | ||
d5722aa2 | 1734 | gdb::byte_vector negated_bytes; |
4ac0cb1c TT |
1735 | if (is_signed |
1736 | && maybe_negate_by_bytes (valaddr, len, byte_order, &negated_bytes)) | |
1737 | { | |
1738 | fputs_filtered ("-", stream); | |
1739 | valaddr = negated_bytes.data (); | |
1740 | } | |
1741 | ||
c906108c | 1742 | /* Base-ten number is less than twice as many digits |
581e13c1 MS |
1743 | as the base 16 number, which is 2 digits per byte. */ |
1744 | ||
c906108c | 1745 | decimal_len = len * 2 * 2; |
30a25466 | 1746 | std::vector<unsigned char> digits (decimal_len, 0); |
c906108c | 1747 | |
c906108c SS |
1748 | /* Ok, we have an unknown number of bytes of data to be printed in |
1749 | * decimal. | |
1750 | * | |
1751 | * Given a hex number (in nibbles) as XYZ, we start by taking X and | |
30baf67b | 1752 | * decimalizing it as "x1 x2" in two decimal nibbles. Then we multiply |
c906108c SS |
1753 | * the nibbles by 16, add Y and re-decimalize. Repeat with Z. |
1754 | * | |
1755 | * The trick is that "digits" holds a base-10 number, but sometimes | |
581e13c1 | 1756 | * the individual digits are > 10. |
c906108c SS |
1757 | * |
1758 | * Outer loop is per nibble (hex digit) of input, from MSD end to | |
1759 | * LSD end. | |
1760 | */ | |
c5aa993b | 1761 | decimal_digits = 0; /* Number of decimal digits so far */ |
d44e8473 | 1762 | p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1; |
c906108c | 1763 | flip = 0; |
d44e8473 | 1764 | while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr)) |
c5aa993b | 1765 | { |
c906108c SS |
1766 | /* |
1767 | * Multiply current base-ten number by 16 in place. | |
1768 | * Each digit was between 0 and 9, now is between | |
1769 | * 0 and 144. | |
1770 | */ | |
c5aa993b JM |
1771 | for (j = 0; j < decimal_digits; j++) |
1772 | { | |
1773 | digits[j] = SHIFT (digits[j]); | |
1774 | } | |
1775 | ||
c906108c SS |
1776 | /* Take the next nibble off the input and add it to what |
1777 | * we've got in the LSB position. Bottom 'digit' is now | |
1778 | * between 0 and 159. | |
1779 | * | |
1780 | * "flip" is used to run this loop twice for each byte. | |
1781 | */ | |
c5aa993b JM |
1782 | if (flip == 0) |
1783 | { | |
581e13c1 MS |
1784 | /* Take top nibble. */ |
1785 | ||
c5aa993b JM |
1786 | digits[0] += HIGH_NIBBLE (*p); |
1787 | flip = 1; | |
1788 | } | |
1789 | else | |
1790 | { | |
581e13c1 MS |
1791 | /* Take low nibble and bump our pointer "p". */ |
1792 | ||
c5aa993b | 1793 | digits[0] += LOW_NIBBLE (*p); |
d44e8473 MD |
1794 | if (byte_order == BFD_ENDIAN_BIG) |
1795 | p++; | |
1796 | else | |
1797 | p--; | |
c5aa993b JM |
1798 | flip = 0; |
1799 | } | |
c906108c SS |
1800 | |
1801 | /* Re-decimalize. We have to do this often enough | |
1802 | * that we don't overflow, but once per nibble is | |
1803 | * overkill. Easier this way, though. Note that the | |
1804 | * carry is often larger than 10 (e.g. max initial | |
1805 | * carry out of lowest nibble is 15, could bubble all | |
1806 | * the way up greater than 10). So we have to do | |
1807 | * the carrying beyond the last current digit. | |
1808 | */ | |
1809 | carry = 0; | |
c5aa993b JM |
1810 | for (j = 0; j < decimal_len - 1; j++) |
1811 | { | |
1812 | digits[j] += carry; | |
1813 | ||
1814 | /* "/" won't handle an unsigned char with | |
1815 | * a value that if signed would be negative. | |
1816 | * So extend to longword int via "dummy". | |
1817 | */ | |
1818 | dummy = digits[j]; | |
1819 | carry = CARRY_OUT (dummy); | |
1820 | digits[j] = CARRY_LEFT (dummy); | |
1821 | ||
1822 | if (j >= decimal_digits && carry == 0) | |
1823 | { | |
1824 | /* | |
1825 | * All higher digits are 0 and we | |
1826 | * no longer have a carry. | |
1827 | * | |
1828 | * Note: "j" is 0-based, "decimal_digits" is | |
1829 | * 1-based. | |
1830 | */ | |
1831 | decimal_digits = j + 1; | |
1832 | break; | |
1833 | } | |
1834 | } | |
1835 | } | |
c906108c SS |
1836 | |
1837 | /* Ok, now "digits" is the decimal representation, with | |
581e13c1 MS |
1838 | the "decimal_digits" actual digits. Print! */ |
1839 | ||
30a25466 TT |
1840 | for (i = decimal_digits - 1; i > 0 && digits[i] == 0; --i) |
1841 | ; | |
1842 | ||
1843 | for (; i >= 0; i--) | |
c5aa993b JM |
1844 | { |
1845 | fprintf_filtered (stream, "%1d", digits[i]); | |
1846 | } | |
c906108c SS |
1847 | } |
1848 | ||
1849 | /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ | |
1850 | ||
6b9acc27 | 1851 | void |
fc1a4b47 | 1852 | print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 TT |
1853 | unsigned len, enum bfd_endian byte_order, |
1854 | bool zero_pad) | |
c906108c | 1855 | { |
fc1a4b47 | 1856 | const gdb_byte *p; |
c906108c | 1857 | |
bb599908 | 1858 | fputs_filtered ("0x", stream); |
d44e8473 | 1859 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c | 1860 | { |
30a25466 TT |
1861 | p = valaddr; |
1862 | ||
1863 | if (!zero_pad) | |
1864 | { | |
1865 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1866 | single byte at the end. */ | |
1867 | for (; p < valaddr + len - 1 && !*p; ++p) | |
1868 | ; | |
1869 | } | |
1870 | ||
1871 | const gdb_byte *first = p; | |
1872 | for (; | |
c906108c SS |
1873 | p < valaddr + len; |
1874 | p++) | |
1875 | { | |
30a25466 TT |
1876 | /* When not zero-padding, use a different format for the |
1877 | very first byte printed. */ | |
1878 | if (!zero_pad && p == first) | |
1879 | fprintf_filtered (stream, "%x", *p); | |
1880 | else | |
1881 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1882 | } |
1883 | } | |
1884 | else | |
1885 | { | |
30a25466 TT |
1886 | p = valaddr + len - 1; |
1887 | ||
1888 | if (!zero_pad) | |
1889 | { | |
1890 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1891 | single byte at the end. */ | |
1892 | for (; p >= valaddr + 1 && !*p; --p) | |
1893 | ; | |
1894 | } | |
1895 | ||
1896 | const gdb_byte *first = p; | |
1897 | for (; | |
c906108c SS |
1898 | p >= valaddr; |
1899 | p--) | |
1900 | { | |
30a25466 TT |
1901 | /* When not zero-padding, use a different format for the |
1902 | very first byte printed. */ | |
1903 | if (!zero_pad && p == first) | |
1904 | fprintf_filtered (stream, "%x", *p); | |
1905 | else | |
1906 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1907 | } |
1908 | } | |
c906108c SS |
1909 | } |
1910 | ||
3e43a32a | 1911 | /* VALADDR points to a char integer of LEN bytes. |
581e13c1 | 1912 | Print it out in appropriate language form on stream. |
6b9acc27 JJ |
1913 | Omit any leading zero chars. */ |
1914 | ||
1915 | void | |
6c7a06a3 TT |
1916 | print_char_chars (struct ui_file *stream, struct type *type, |
1917 | const gdb_byte *valaddr, | |
d44e8473 | 1918 | unsigned len, enum bfd_endian byte_order) |
6b9acc27 | 1919 | { |
fc1a4b47 | 1920 | const gdb_byte *p; |
6b9acc27 | 1921 | |
d44e8473 | 1922 | if (byte_order == BFD_ENDIAN_BIG) |
6b9acc27 JJ |
1923 | { |
1924 | p = valaddr; | |
1925 | while (p < valaddr + len - 1 && *p == 0) | |
1926 | ++p; | |
1927 | ||
1928 | while (p < valaddr + len) | |
1929 | { | |
6c7a06a3 | 1930 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1931 | ++p; |
1932 | } | |
1933 | } | |
1934 | else | |
1935 | { | |
1936 | p = valaddr + len - 1; | |
1937 | while (p > valaddr && *p == 0) | |
1938 | --p; | |
1939 | ||
1940 | while (p >= valaddr) | |
1941 | { | |
6c7a06a3 | 1942 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1943 | --p; |
1944 | } | |
1945 | } | |
1946 | } | |
1947 | ||
132c57b4 TT |
1948 | /* Print function pointer with inferior address ADDRESS onto stdio |
1949 | stream STREAM. */ | |
1950 | ||
1951 | void | |
edf0c1b7 TT |
1952 | print_function_pointer_address (const struct value_print_options *options, |
1953 | struct gdbarch *gdbarch, | |
132c57b4 | 1954 | CORE_ADDR address, |
edf0c1b7 | 1955 | struct ui_file *stream) |
132c57b4 TT |
1956 | { |
1957 | CORE_ADDR func_addr | |
1958 | = gdbarch_convert_from_func_ptr_addr (gdbarch, address, | |
8b88a78e | 1959 | current_top_target ()); |
132c57b4 TT |
1960 | |
1961 | /* If the function pointer is represented by a description, print | |
1962 | the address of the description. */ | |
edf0c1b7 | 1963 | if (options->addressprint && func_addr != address) |
132c57b4 TT |
1964 | { |
1965 | fputs_filtered ("@", stream); | |
1966 | fputs_filtered (paddress (gdbarch, address), stream); | |
1967 | fputs_filtered (": ", stream); | |
1968 | } | |
edf0c1b7 | 1969 | print_address_demangle (options, gdbarch, func_addr, stream, demangle); |
132c57b4 TT |
1970 | } |
1971 | ||
1972 | ||
79a45b7d | 1973 | /* Print on STREAM using the given OPTIONS the index for the element |
e79af960 JB |
1974 | at INDEX of an array whose index type is INDEX_TYPE. */ |
1975 | ||
1976 | void | |
1977 | maybe_print_array_index (struct type *index_type, LONGEST index, | |
79a45b7d TT |
1978 | struct ui_file *stream, |
1979 | const struct value_print_options *options) | |
e79af960 JB |
1980 | { |
1981 | struct value *index_value; | |
1982 | ||
79a45b7d | 1983 | if (!options->print_array_indexes) |
e79af960 JB |
1984 | return; |
1985 | ||
1986 | index_value = value_from_longest (index_type, index); | |
1987 | ||
79a45b7d TT |
1988 | LA_PRINT_ARRAY_INDEX (index_value, stream, options); |
1989 | } | |
e79af960 | 1990 | |
c906108c | 1991 | /* Called by various <lang>_val_print routines to print elements of an |
c5aa993b | 1992 | array in the form "<elem1>, <elem2>, <elem3>, ...". |
c906108c | 1993 | |
c5aa993b JM |
1994 | (FIXME?) Assumes array element separator is a comma, which is correct |
1995 | for all languages currently handled. | |
1996 | (FIXME?) Some languages have a notation for repeated array elements, | |
581e13c1 | 1997 | perhaps we should try to use that notation when appropriate. */ |
c906108c SS |
1998 | |
1999 | void | |
490f124f | 2000 | val_print_array_elements (struct type *type, |
e8b24d9f | 2001 | LONGEST embedded_offset, |
a2bd3dcd | 2002 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 2003 | int recurse, |
e8b24d9f | 2004 | struct value *val, |
79a45b7d | 2005 | const struct value_print_options *options, |
fba45db2 | 2006 | unsigned int i) |
c906108c SS |
2007 | { |
2008 | unsigned int things_printed = 0; | |
2009 | unsigned len; | |
aa715135 | 2010 | struct type *elttype, *index_type, *base_index_type; |
c906108c SS |
2011 | unsigned eltlen; |
2012 | /* Position of the array element we are examining to see | |
2013 | whether it is repeated. */ | |
2014 | unsigned int rep1; | |
2015 | /* Number of repetitions we have detected so far. */ | |
2016 | unsigned int reps; | |
dbc98a8b | 2017 | LONGEST low_bound, high_bound; |
aa715135 | 2018 | LONGEST low_pos, high_pos; |
c5aa993b | 2019 | |
c906108c | 2020 | elttype = TYPE_TARGET_TYPE (type); |
3ae385af | 2021 | eltlen = type_length_units (check_typedef (elttype)); |
e79af960 | 2022 | index_type = TYPE_INDEX_TYPE (type); |
c906108c | 2023 | |
dbc98a8b | 2024 | if (get_array_bounds (type, &low_bound, &high_bound)) |
75be741b | 2025 | { |
aa715135 JG |
2026 | if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) |
2027 | base_index_type = TYPE_TARGET_TYPE (index_type); | |
2028 | else | |
2029 | base_index_type = index_type; | |
2030 | ||
2031 | /* Non-contiguous enumerations types can by used as index types | |
2032 | in some languages (e.g. Ada). In this case, the array length | |
2033 | shall be computed from the positions of the first and last | |
2034 | literal in the enumeration type, and not from the values | |
2035 | of these literals. */ | |
2036 | if (!discrete_position (base_index_type, low_bound, &low_pos) | |
2037 | || !discrete_position (base_index_type, high_bound, &high_pos)) | |
2038 | { | |
2039 | warning (_("unable to get positions in array, use bounds instead")); | |
2040 | low_pos = low_bound; | |
2041 | high_pos = high_bound; | |
2042 | } | |
2043 | ||
2044 | /* The array length should normally be HIGH_POS - LOW_POS + 1. | |
75be741b | 2045 | But we have to be a little extra careful, because some languages |
aa715135 | 2046 | such as Ada allow LOW_POS to be greater than HIGH_POS for |
75be741b JB |
2047 | empty arrays. In that situation, the array length is just zero, |
2048 | not negative! */ | |
aa715135 | 2049 | if (low_pos > high_pos) |
75be741b JB |
2050 | len = 0; |
2051 | else | |
aa715135 | 2052 | len = high_pos - low_pos + 1; |
75be741b | 2053 | } |
e936309c JB |
2054 | else |
2055 | { | |
dbc98a8b KW |
2056 | warning (_("unable to get bounds of array, assuming null array")); |
2057 | low_bound = 0; | |
2058 | len = 0; | |
168de233 JB |
2059 | } |
2060 | ||
c906108c SS |
2061 | annotate_array_section_begin (i, elttype); |
2062 | ||
79a45b7d | 2063 | for (; i < len && things_printed < options->print_max; i++) |
c906108c SS |
2064 | { |
2065 | if (i != 0) | |
2066 | { | |
2a998fc0 | 2067 | if (options->prettyformat_arrays) |
c906108c SS |
2068 | { |
2069 | fprintf_filtered (stream, ",\n"); | |
2070 | print_spaces_filtered (2 + 2 * recurse, stream); | |
2071 | } | |
2072 | else | |
2073 | { | |
2074 | fprintf_filtered (stream, ", "); | |
2075 | } | |
2076 | } | |
2077 | wrap_here (n_spaces (2 + 2 * recurse)); | |
dbc98a8b | 2078 | maybe_print_array_index (index_type, i + low_bound, |
79a45b7d | 2079 | stream, options); |
c906108c SS |
2080 | |
2081 | rep1 = i + 1; | |
2082 | reps = 1; | |
35bef4fd TT |
2083 | /* Only check for reps if repeat_count_threshold is not set to |
2084 | UINT_MAX (unlimited). */ | |
2085 | if (options->repeat_count_threshold < UINT_MAX) | |
c906108c | 2086 | { |
35bef4fd | 2087 | while (rep1 < len |
9a0dc9e3 PA |
2088 | && value_contents_eq (val, |
2089 | embedded_offset + i * eltlen, | |
2090 | val, | |
2091 | (embedded_offset | |
2092 | + rep1 * eltlen), | |
2093 | eltlen)) | |
35bef4fd TT |
2094 | { |
2095 | ++reps; | |
2096 | ++rep1; | |
2097 | } | |
c906108c SS |
2098 | } |
2099 | ||
79a45b7d | 2100 | if (reps > options->repeat_count_threshold) |
c906108c | 2101 | { |
e8b24d9f | 2102 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f PA |
2103 | address, stream, recurse + 1, val, options, |
2104 | current_language); | |
c906108c | 2105 | annotate_elt_rep (reps); |
7f6aba03 TT |
2106 | fprintf_filtered (stream, " %p[<repeats %u times>%p]", |
2107 | metadata_style.style ().ptr (), reps, nullptr); | |
c906108c SS |
2108 | annotate_elt_rep_end (); |
2109 | ||
2110 | i = rep1 - 1; | |
79a45b7d | 2111 | things_printed += options->repeat_count_threshold; |
c906108c SS |
2112 | } |
2113 | else | |
2114 | { | |
e8b24d9f | 2115 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f | 2116 | address, |
0e03807e | 2117 | stream, recurse + 1, val, options, current_language); |
c906108c SS |
2118 | annotate_elt (); |
2119 | things_printed++; | |
2120 | } | |
2121 | } | |
2122 | annotate_array_section_end (); | |
2123 | if (i < len) | |
2124 | { | |
2125 | fprintf_filtered (stream, "..."); | |
2126 | } | |
2127 | } | |
2128 | ||
917317f4 JM |
2129 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
2130 | results in GDB's memory at MYADDR. Returns a count of the bytes | |
9b409511 | 2131 | actually read, and optionally a target_xfer_status value in the |
578d3588 | 2132 | location pointed to by ERRPTR if ERRPTR is non-null. */ |
917317f4 JM |
2133 | |
2134 | /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this | |
2135 | function be eliminated. */ | |
2136 | ||
2137 | static int | |
3e43a32a | 2138 | partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 2139 | int len, int *errptr) |
917317f4 | 2140 | { |
581e13c1 MS |
2141 | int nread; /* Number of bytes actually read. */ |
2142 | int errcode; /* Error from last read. */ | |
917317f4 | 2143 | |
581e13c1 | 2144 | /* First try a complete read. */ |
917317f4 JM |
2145 | errcode = target_read_memory (memaddr, myaddr, len); |
2146 | if (errcode == 0) | |
2147 | { | |
581e13c1 | 2148 | /* Got it all. */ |
917317f4 JM |
2149 | nread = len; |
2150 | } | |
2151 | else | |
2152 | { | |
581e13c1 | 2153 | /* Loop, reading one byte at a time until we get as much as we can. */ |
917317f4 JM |
2154 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) |
2155 | { | |
2156 | errcode = target_read_memory (memaddr++, myaddr++, 1); | |
2157 | } | |
581e13c1 | 2158 | /* If an error, the last read was unsuccessful, so adjust count. */ |
917317f4 JM |
2159 | if (errcode != 0) |
2160 | { | |
2161 | nread--; | |
2162 | } | |
2163 | } | |
578d3588 | 2164 | if (errptr != NULL) |
917317f4 | 2165 | { |
578d3588 | 2166 | *errptr = errcode; |
917317f4 JM |
2167 | } |
2168 | return (nread); | |
2169 | } | |
2170 | ||
b4be9fad TT |
2171 | /* Read a string from the inferior, at ADDR, with LEN characters of |
2172 | WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER | |
2173 | will be set to a newly allocated buffer containing the string, and | |
2174 | BYTES_READ will be set to the number of bytes read. Returns 0 on | |
9b409511 | 2175 | success, or a target_xfer_status on failure. |
ae6a3a4c | 2176 | |
f380848e SA |
2177 | If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters |
2178 | (including eventual NULs in the middle or end of the string). | |
2179 | ||
2180 | If LEN is -1, stops at the first null character (not necessarily | |
2181 | the first null byte) up to a maximum of FETCHLIMIT characters. Set | |
2182 | FETCHLIMIT to UINT_MAX to read as many characters as possible from | |
2183 | the string. | |
ae6a3a4c TJB |
2184 | |
2185 | Unless an exception is thrown, BUFFER will always be allocated, even on | |
2186 | failure. In this case, some characters might have been read before the | |
2187 | failure happened. Check BYTES_READ to recognize this situation. | |
2188 | ||
2189 | Note: There was a FIXME asking to make this code use target_read_string, | |
2190 | but this function is more general (can read past null characters, up to | |
581e13c1 | 2191 | given LEN). Besides, it is used much more often than target_read_string |
ae6a3a4c TJB |
2192 | so it is more tested. Perhaps callers of target_read_string should use |
2193 | this function instead? */ | |
c906108c SS |
2194 | |
2195 | int | |
ae6a3a4c | 2196 | read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit, |
b4be9fad TT |
2197 | enum bfd_endian byte_order, gdb::unique_xmalloc_ptr<gdb_byte> *buffer, |
2198 | int *bytes_read) | |
c906108c | 2199 | { |
ae6a3a4c TJB |
2200 | int errcode; /* Errno returned from bad reads. */ |
2201 | unsigned int nfetch; /* Chars to fetch / chars fetched. */ | |
3e43a32a MS |
2202 | gdb_byte *bufptr; /* Pointer to next available byte in |
2203 | buffer. */ | |
ae6a3a4c | 2204 | |
ae6a3a4c TJB |
2205 | /* Loop until we either have all the characters, or we encounter |
2206 | some error, such as bumping into the end of the address space. */ | |
c906108c | 2207 | |
b4be9fad | 2208 | buffer->reset (nullptr); |
c906108c SS |
2209 | |
2210 | if (len > 0) | |
2211 | { | |
88db67ef YQ |
2212 | /* We want fetchlimit chars, so we might as well read them all in |
2213 | one operation. */ | |
325fac50 | 2214 | unsigned int fetchlen = std::min ((unsigned) len, fetchlimit); |
f380848e | 2215 | |
b4be9fad TT |
2216 | buffer->reset ((gdb_byte *) xmalloc (fetchlen * width)); |
2217 | bufptr = buffer->get (); | |
c906108c | 2218 | |
f380848e | 2219 | nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode) |
c906108c SS |
2220 | / width; |
2221 | addr += nfetch * width; | |
2222 | bufptr += nfetch * width; | |
2223 | } | |
2224 | else if (len == -1) | |
2225 | { | |
2226 | unsigned long bufsize = 0; | |
88db67ef YQ |
2227 | unsigned int chunksize; /* Size of each fetch, in chars. */ |
2228 | int found_nul; /* Non-zero if we found the nul char. */ | |
2229 | gdb_byte *limit; /* First location past end of fetch buffer. */ | |
2230 | ||
2231 | found_nul = 0; | |
2232 | /* We are looking for a NUL terminator to end the fetching, so we | |
2233 | might as well read in blocks that are large enough to be efficient, | |
2234 | but not so large as to be slow if fetchlimit happens to be large. | |
2235 | So we choose the minimum of 8 and fetchlimit. We used to use 200 | |
2236 | instead of 8 but 200 is way too big for remote debugging over a | |
2237 | serial line. */ | |
325fac50 | 2238 | chunksize = std::min (8u, fetchlimit); |
ae6a3a4c | 2239 | |
c906108c SS |
2240 | do |
2241 | { | |
2242 | QUIT; | |
325fac50 | 2243 | nfetch = std::min ((unsigned long) chunksize, fetchlimit - bufsize); |
c906108c | 2244 | |
ae6a3a4c | 2245 | if (*buffer == NULL) |
b4be9fad | 2246 | buffer->reset ((gdb_byte *) xmalloc (nfetch * width)); |
c906108c | 2247 | else |
b4be9fad TT |
2248 | buffer->reset ((gdb_byte *) xrealloc (buffer->release (), |
2249 | (nfetch + bufsize) * width)); | |
c906108c | 2250 | |
b4be9fad | 2251 | bufptr = buffer->get () + bufsize * width; |
c906108c SS |
2252 | bufsize += nfetch; |
2253 | ||
ae6a3a4c | 2254 | /* Read as much as we can. */ |
917317f4 | 2255 | nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode) |
ae6a3a4c | 2256 | / width; |
c906108c | 2257 | |
ae6a3a4c | 2258 | /* Scan this chunk for the null character that terminates the string |
c906108c SS |
2259 | to print. If found, we don't need to fetch any more. Note |
2260 | that bufptr is explicitly left pointing at the next character | |
ae6a3a4c TJB |
2261 | after the null character, or at the next character after the end |
2262 | of the buffer. */ | |
c906108c SS |
2263 | |
2264 | limit = bufptr + nfetch * width; | |
2265 | while (bufptr < limit) | |
2266 | { | |
2267 | unsigned long c; | |
2268 | ||
e17a4113 | 2269 | c = extract_unsigned_integer (bufptr, width, byte_order); |
c906108c SS |
2270 | addr += width; |
2271 | bufptr += width; | |
2272 | if (c == 0) | |
2273 | { | |
2274 | /* We don't care about any error which happened after | |
ae6a3a4c | 2275 | the NUL terminator. */ |
c906108c SS |
2276 | errcode = 0; |
2277 | found_nul = 1; | |
2278 | break; | |
2279 | } | |
2280 | } | |
2281 | } | |
c5aa993b | 2282 | while (errcode == 0 /* no error */ |
b4be9fad | 2283 | && bufptr - buffer->get () < fetchlimit * width /* no overrun */ |
ae6a3a4c | 2284 | && !found_nul); /* haven't found NUL yet */ |
c906108c SS |
2285 | } |
2286 | else | |
ae6a3a4c TJB |
2287 | { /* Length of string is really 0! */ |
2288 | /* We always allocate *buffer. */ | |
b4be9fad TT |
2289 | buffer->reset ((gdb_byte *) xmalloc (1)); |
2290 | bufptr = buffer->get (); | |
c906108c SS |
2291 | errcode = 0; |
2292 | } | |
2293 | ||
2294 | /* bufptr and addr now point immediately beyond the last byte which we | |
2295 | consider part of the string (including a '\0' which ends the string). */ | |
b4be9fad | 2296 | *bytes_read = bufptr - buffer->get (); |
ae6a3a4c TJB |
2297 | |
2298 | QUIT; | |
2299 | ||
ae6a3a4c TJB |
2300 | return errcode; |
2301 | } | |
2302 | ||
3b2b8fea TT |
2303 | /* Return true if print_wchar can display W without resorting to a |
2304 | numeric escape, false otherwise. */ | |
2305 | ||
2306 | static int | |
2307 | wchar_printable (gdb_wchar_t w) | |
2308 | { | |
2309 | return (gdb_iswprint (w) | |
2310 | || w == LCST ('\a') || w == LCST ('\b') | |
2311 | || w == LCST ('\f') || w == LCST ('\n') | |
2312 | || w == LCST ('\r') || w == LCST ('\t') | |
2313 | || w == LCST ('\v')); | |
2314 | } | |
2315 | ||
2316 | /* A helper function that converts the contents of STRING to wide | |
2317 | characters and then appends them to OUTPUT. */ | |
2318 | ||
2319 | static void | |
2320 | append_string_as_wide (const char *string, | |
2321 | struct obstack *output) | |
2322 | { | |
2323 | for (; *string; ++string) | |
2324 | { | |
2325 | gdb_wchar_t w = gdb_btowc (*string); | |
2326 | obstack_grow (output, &w, sizeof (gdb_wchar_t)); | |
2327 | } | |
2328 | } | |
2329 | ||
2330 | /* Print a wide character W to OUTPUT. ORIG is a pointer to the | |
2331 | original (target) bytes representing the character, ORIG_LEN is the | |
2332 | number of valid bytes. WIDTH is the number of bytes in a base | |
2333 | characters of the type. OUTPUT is an obstack to which wide | |
2334 | characters are emitted. QUOTER is a (narrow) character indicating | |
2335 | the style of quotes surrounding the character to be printed. | |
2336 | NEED_ESCAPE is an in/out flag which is used to track numeric | |
2337 | escapes across calls. */ | |
2338 | ||
2339 | static void | |
2340 | print_wchar (gdb_wint_t w, const gdb_byte *orig, | |
2341 | int orig_len, int width, | |
2342 | enum bfd_endian byte_order, | |
2343 | struct obstack *output, | |
2344 | int quoter, int *need_escapep) | |
2345 | { | |
2346 | int need_escape = *need_escapep; | |
2347 | ||
2348 | *need_escapep = 0; | |
3b2b8fea | 2349 | |
95c64f92 YQ |
2350 | /* iswprint implementation on Windows returns 1 for tab character. |
2351 | In order to avoid different printout on this host, we explicitly | |
2352 | use wchar_printable function. */ | |
2353 | switch (w) | |
3b2b8fea | 2354 | { |
95c64f92 YQ |
2355 | case LCST ('\a'): |
2356 | obstack_grow_wstr (output, LCST ("\\a")); | |
2357 | break; | |
2358 | case LCST ('\b'): | |
2359 | obstack_grow_wstr (output, LCST ("\\b")); | |
2360 | break; | |
2361 | case LCST ('\f'): | |
2362 | obstack_grow_wstr (output, LCST ("\\f")); | |
2363 | break; | |
2364 | case LCST ('\n'): | |
2365 | obstack_grow_wstr (output, LCST ("\\n")); | |
2366 | break; | |
2367 | case LCST ('\r'): | |
2368 | obstack_grow_wstr (output, LCST ("\\r")); | |
2369 | break; | |
2370 | case LCST ('\t'): | |
2371 | obstack_grow_wstr (output, LCST ("\\t")); | |
2372 | break; | |
2373 | case LCST ('\v'): | |
2374 | obstack_grow_wstr (output, LCST ("\\v")); | |
2375 | break; | |
2376 | default: | |
3b2b8fea | 2377 | { |
95c64f92 YQ |
2378 | if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w) |
2379 | && w != LCST ('8') | |
2380 | && w != LCST ('9')))) | |
2381 | { | |
2382 | gdb_wchar_t wchar = w; | |
3b2b8fea | 2383 | |
95c64f92 YQ |
2384 | if (w == gdb_btowc (quoter) || w == LCST ('\\')) |
2385 | obstack_grow_wstr (output, LCST ("\\")); | |
2386 | obstack_grow (output, &wchar, sizeof (gdb_wchar_t)); | |
2387 | } | |
2388 | else | |
2389 | { | |
2390 | int i; | |
3b2b8fea | 2391 | |
95c64f92 YQ |
2392 | for (i = 0; i + width <= orig_len; i += width) |
2393 | { | |
2394 | char octal[30]; | |
2395 | ULONGEST value; | |
2396 | ||
2397 | value = extract_unsigned_integer (&orig[i], width, | |
3b2b8fea | 2398 | byte_order); |
95c64f92 YQ |
2399 | /* If the value fits in 3 octal digits, print it that |
2400 | way. Otherwise, print it as a hex escape. */ | |
2401 | if (value <= 0777) | |
2402 | xsnprintf (octal, sizeof (octal), "\\%.3o", | |
2403 | (int) (value & 0777)); | |
2404 | else | |
2405 | xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value); | |
2406 | append_string_as_wide (octal, output); | |
2407 | } | |
2408 | /* If we somehow have extra bytes, print them now. */ | |
2409 | while (i < orig_len) | |
2410 | { | |
2411 | char octal[5]; | |
2412 | ||
2413 | xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff); | |
2414 | append_string_as_wide (octal, output); | |
2415 | ++i; | |
2416 | } | |
2417 | ||
2418 | *need_escapep = 1; | |
2419 | } | |
3b2b8fea TT |
2420 | break; |
2421 | } | |
2422 | } | |
2423 | } | |
2424 | ||
2425 | /* Print the character C on STREAM as part of the contents of a | |
2426 | literal string whose delimiter is QUOTER. ENCODING names the | |
2427 | encoding of C. */ | |
2428 | ||
2429 | void | |
2430 | generic_emit_char (int c, struct type *type, struct ui_file *stream, | |
2431 | int quoter, const char *encoding) | |
2432 | { | |
2433 | enum bfd_endian byte_order | |
34877895 | 2434 | = type_byte_order (type); |
b926417a | 2435 | gdb_byte *c_buf; |
3b2b8fea TT |
2436 | int need_escape = 0; |
2437 | ||
b926417a TT |
2438 | c_buf = (gdb_byte *) alloca (TYPE_LENGTH (type)); |
2439 | pack_long (c_buf, type, c); | |
3b2b8fea | 2440 | |
b926417a | 2441 | wchar_iterator iter (c_buf, TYPE_LENGTH (type), encoding, TYPE_LENGTH (type)); |
3b2b8fea TT |
2442 | |
2443 | /* This holds the printable form of the wchar_t data. */ | |
8268c778 | 2444 | auto_obstack wchar_buf; |
3b2b8fea TT |
2445 | |
2446 | while (1) | |
2447 | { | |
2448 | int num_chars; | |
2449 | gdb_wchar_t *chars; | |
2450 | const gdb_byte *buf; | |
2451 | size_t buflen; | |
2452 | int print_escape = 1; | |
2453 | enum wchar_iterate_result result; | |
2454 | ||
cda6c55b | 2455 | num_chars = iter.iterate (&result, &chars, &buf, &buflen); |
3b2b8fea TT |
2456 | if (num_chars < 0) |
2457 | break; | |
2458 | if (num_chars > 0) | |
2459 | { | |
2460 | /* If all characters are printable, print them. Otherwise, | |
2461 | we're going to have to print an escape sequence. We | |
2462 | check all characters because we want to print the target | |
2463 | bytes in the escape sequence, and we don't know character | |
2464 | boundaries there. */ | |
2465 | int i; | |
2466 | ||
2467 | print_escape = 0; | |
2468 | for (i = 0; i < num_chars; ++i) | |
2469 | if (!wchar_printable (chars[i])) | |
2470 | { | |
2471 | print_escape = 1; | |
2472 | break; | |
2473 | } | |
2474 | ||
2475 | if (!print_escape) | |
2476 | { | |
2477 | for (i = 0; i < num_chars; ++i) | |
2478 | print_wchar (chars[i], buf, buflen, | |
2479 | TYPE_LENGTH (type), byte_order, | |
2480 | &wchar_buf, quoter, &need_escape); | |
2481 | } | |
2482 | } | |
2483 | ||
2484 | /* This handles the NUM_CHARS == 0 case as well. */ | |
2485 | if (print_escape) | |
2486 | print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type), | |
2487 | byte_order, &wchar_buf, quoter, &need_escape); | |
2488 | } | |
2489 | ||
2490 | /* The output in the host encoding. */ | |
8268c778 | 2491 | auto_obstack output; |
3b2b8fea TT |
2492 | |
2493 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2494 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2495 | obstack_object_size (&wchar_buf), |
fff10684 | 2496 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2497 | obstack_1grow (&output, '\0'); |
2498 | ||
79f33898 | 2499 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2500 | } |
2501 | ||
0d63ecda KS |
2502 | /* Return the repeat count of the next character/byte in ITER, |
2503 | storing the result in VEC. */ | |
2504 | ||
2505 | static int | |
cda6c55b | 2506 | count_next_character (wchar_iterator *iter, |
b01ba14d | 2507 | std::vector<converted_character> *vec) |
0d63ecda KS |
2508 | { |
2509 | struct converted_character *current; | |
2510 | ||
b01ba14d | 2511 | if (vec->empty ()) |
0d63ecda KS |
2512 | { |
2513 | struct converted_character tmp; | |
2514 | gdb_wchar_t *chars; | |
2515 | ||
2516 | tmp.num_chars | |
cda6c55b | 2517 | = iter->iterate (&tmp.result, &chars, &tmp.buf, &tmp.buflen); |
0d63ecda KS |
2518 | if (tmp.num_chars > 0) |
2519 | { | |
2520 | gdb_assert (tmp.num_chars < MAX_WCHARS); | |
2521 | memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t)); | |
2522 | } | |
b01ba14d | 2523 | vec->push_back (tmp); |
0d63ecda KS |
2524 | } |
2525 | ||
b01ba14d | 2526 | current = &vec->back (); |
0d63ecda KS |
2527 | |
2528 | /* Count repeated characters or bytes. */ | |
2529 | current->repeat_count = 1; | |
2530 | if (current->num_chars == -1) | |
2531 | { | |
2532 | /* EOF */ | |
2533 | return -1; | |
2534 | } | |
2535 | else | |
2536 | { | |
2537 | gdb_wchar_t *chars; | |
2538 | struct converted_character d; | |
2539 | int repeat; | |
2540 | ||
2541 | d.repeat_count = 0; | |
2542 | ||
2543 | while (1) | |
2544 | { | |
2545 | /* Get the next character. */ | |
cda6c55b | 2546 | d.num_chars = iter->iterate (&d.result, &chars, &d.buf, &d.buflen); |
0d63ecda KS |
2547 | |
2548 | /* If a character was successfully converted, save the character | |
2549 | into the converted character. */ | |
2550 | if (d.num_chars > 0) | |
2551 | { | |
2552 | gdb_assert (d.num_chars < MAX_WCHARS); | |
2553 | memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars)); | |
2554 | } | |
2555 | ||
2556 | /* Determine if the current character is the same as this | |
2557 | new character. */ | |
2558 | if (d.num_chars == current->num_chars && d.result == current->result) | |
2559 | { | |
2560 | /* There are two cases to consider: | |
2561 | ||
2562 | 1) Equality of converted character (num_chars > 0) | |
2563 | 2) Equality of non-converted character (num_chars == 0) */ | |
2564 | if ((current->num_chars > 0 | |
2565 | && memcmp (current->chars, d.chars, | |
2566 | WCHAR_BUFLEN (current->num_chars)) == 0) | |
2567 | || (current->num_chars == 0 | |
2568 | && current->buflen == d.buflen | |
2569 | && memcmp (current->buf, d.buf, current->buflen) == 0)) | |
2570 | ++current->repeat_count; | |
2571 | else | |
2572 | break; | |
2573 | } | |
2574 | else | |
2575 | break; | |
2576 | } | |
2577 | ||
2578 | /* Push this next converted character onto the result vector. */ | |
2579 | repeat = current->repeat_count; | |
b01ba14d | 2580 | vec->push_back (d); |
0d63ecda KS |
2581 | return repeat; |
2582 | } | |
2583 | } | |
2584 | ||
2585 | /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote | |
2586 | character to use with string output. WIDTH is the size of the output | |
6471e7d2 | 2587 | character type. BYTE_ORDER is the target byte order. OPTIONS |
0d63ecda KS |
2588 | is the user's print options. */ |
2589 | ||
2590 | static void | |
2591 | print_converted_chars_to_obstack (struct obstack *obstack, | |
b01ba14d | 2592 | const std::vector<converted_character> &chars, |
0d63ecda KS |
2593 | int quote_char, int width, |
2594 | enum bfd_endian byte_order, | |
2595 | const struct value_print_options *options) | |
2596 | { | |
2597 | unsigned int idx; | |
b01ba14d | 2598 | const converted_character *elem; |
0d63ecda KS |
2599 | enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last; |
2600 | gdb_wchar_t wide_quote_char = gdb_btowc (quote_char); | |
2601 | int need_escape = 0; | |
2602 | ||
2603 | /* Set the start state. */ | |
2604 | idx = 0; | |
2605 | last = state = START; | |
2606 | elem = NULL; | |
2607 | ||
2608 | while (1) | |
2609 | { | |
2610 | switch (state) | |
2611 | { | |
2612 | case START: | |
2613 | /* Nothing to do. */ | |
2614 | break; | |
2615 | ||
2616 | case SINGLE: | |
2617 | { | |
2618 | int j; | |
2619 | ||
2620 | /* We are outputting a single character | |
2621 | (< options->repeat_count_threshold). */ | |
2622 | ||
2623 | if (last != SINGLE) | |
2624 | { | |
2625 | /* We were outputting some other type of content, so we | |
2626 | must output and a comma and a quote. */ | |
2627 | if (last != START) | |
2628 | obstack_grow_wstr (obstack, LCST (", ")); | |
0d63ecda KS |
2629 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2630 | } | |
2631 | /* Output the character. */ | |
2632 | for (j = 0; j < elem->repeat_count; ++j) | |
2633 | { | |
2634 | if (elem->result == wchar_iterate_ok) | |
2635 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2636 | byte_order, obstack, quote_char, &need_escape); | |
2637 | else | |
2638 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2639 | byte_order, obstack, quote_char, &need_escape); | |
2640 | } | |
2641 | } | |
2642 | break; | |
2643 | ||
2644 | case REPEAT: | |
2645 | { | |
2646 | int j; | |
0d63ecda KS |
2647 | |
2648 | /* We are outputting a character with a repeat count | |
2649 | greater than options->repeat_count_threshold. */ | |
2650 | ||
2651 | if (last == SINGLE) | |
2652 | { | |
2653 | /* We were outputting a single string. Terminate the | |
2654 | string. */ | |
0d63ecda KS |
2655 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2656 | } | |
2657 | if (last != START) | |
2658 | obstack_grow_wstr (obstack, LCST (", ")); | |
2659 | ||
2660 | /* Output the character and repeat string. */ | |
2661 | obstack_grow_wstr (obstack, LCST ("'")); | |
2662 | if (elem->result == wchar_iterate_ok) | |
2663 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2664 | byte_order, obstack, quote_char, &need_escape); | |
2665 | else | |
2666 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2667 | byte_order, obstack, quote_char, &need_escape); | |
2668 | obstack_grow_wstr (obstack, LCST ("'")); | |
528e1572 SM |
2669 | std::string s = string_printf (_(" <repeats %u times>"), |
2670 | elem->repeat_count); | |
0d63ecda KS |
2671 | for (j = 0; s[j]; ++j) |
2672 | { | |
2673 | gdb_wchar_t w = gdb_btowc (s[j]); | |
2674 | obstack_grow (obstack, &w, sizeof (gdb_wchar_t)); | |
2675 | } | |
0d63ecda KS |
2676 | } |
2677 | break; | |
2678 | ||
2679 | case INCOMPLETE: | |
2680 | /* We are outputting an incomplete sequence. */ | |
2681 | if (last == SINGLE) | |
2682 | { | |
2683 | /* If we were outputting a string of SINGLE characters, | |
2684 | terminate the quote. */ | |
0d63ecda KS |
2685 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2686 | } | |
2687 | if (last != START) | |
2688 | obstack_grow_wstr (obstack, LCST (", ")); | |
2689 | ||
2690 | /* Output the incomplete sequence string. */ | |
2691 | obstack_grow_wstr (obstack, LCST ("<incomplete sequence ")); | |
2692 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order, | |
2693 | obstack, 0, &need_escape); | |
2694 | obstack_grow_wstr (obstack, LCST (">")); | |
2695 | ||
85102364 | 2696 | /* We do not attempt to output anything after this. */ |
0d63ecda KS |
2697 | state = FINISH; |
2698 | break; | |
2699 | ||
2700 | case FINISH: | |
2701 | /* All done. If we were outputting a string of SINGLE | |
2702 | characters, the string must be terminated. Otherwise, | |
2703 | REPEAT and INCOMPLETE are always left properly terminated. */ | |
2704 | if (last == SINGLE) | |
e93a8774 | 2705 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
0d63ecda KS |
2706 | |
2707 | return; | |
2708 | } | |
2709 | ||
2710 | /* Get the next element and state. */ | |
2711 | last = state; | |
2712 | if (state != FINISH) | |
2713 | { | |
b01ba14d | 2714 | elem = &chars[idx++]; |
0d63ecda KS |
2715 | switch (elem->result) |
2716 | { | |
2717 | case wchar_iterate_ok: | |
2718 | case wchar_iterate_invalid: | |
2719 | if (elem->repeat_count > options->repeat_count_threshold) | |
2720 | state = REPEAT; | |
2721 | else | |
2722 | state = SINGLE; | |
2723 | break; | |
2724 | ||
2725 | case wchar_iterate_incomplete: | |
2726 | state = INCOMPLETE; | |
2727 | break; | |
2728 | ||
2729 | case wchar_iterate_eof: | |
2730 | state = FINISH; | |
2731 | break; | |
2732 | } | |
2733 | } | |
2734 | } | |
2735 | } | |
2736 | ||
3b2b8fea TT |
2737 | /* Print the character string STRING, printing at most LENGTH |
2738 | characters. LENGTH is -1 if the string is nul terminated. TYPE is | |
2739 | the type of each character. OPTIONS holds the printing options; | |
2740 | printing stops early if the number hits print_max; repeat counts | |
2741 | are printed as appropriate. Print ellipses at the end if we had to | |
2742 | stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
2743 | QUOTE_CHAR is the character to print at each end of the string. If | |
2744 | C_STYLE_TERMINATOR is true, and the last character is 0, then it is | |
2745 | omitted. */ | |
2746 | ||
2747 | void | |
2748 | generic_printstr (struct ui_file *stream, struct type *type, | |
2749 | const gdb_byte *string, unsigned int length, | |
2750 | const char *encoding, int force_ellipses, | |
2751 | int quote_char, int c_style_terminator, | |
2752 | const struct value_print_options *options) | |
2753 | { | |
34877895 | 2754 | enum bfd_endian byte_order = type_byte_order (type); |
3b2b8fea | 2755 | unsigned int i; |
3b2b8fea | 2756 | int width = TYPE_LENGTH (type); |
3b2b8fea | 2757 | int finished = 0; |
0d63ecda | 2758 | struct converted_character *last; |
3b2b8fea TT |
2759 | |
2760 | if (length == -1) | |
2761 | { | |
2762 | unsigned long current_char = 1; | |
2763 | ||
2764 | for (i = 0; current_char; ++i) | |
2765 | { | |
2766 | QUIT; | |
2767 | current_char = extract_unsigned_integer (string + i * width, | |
2768 | width, byte_order); | |
2769 | } | |
2770 | length = i; | |
2771 | } | |
2772 | ||
2773 | /* If the string was not truncated due to `set print elements', and | |
2774 | the last byte of it is a null, we don't print that, in | |
2775 | traditional C style. */ | |
2776 | if (c_style_terminator | |
2777 | && !force_ellipses | |
2778 | && length > 0 | |
2779 | && (extract_unsigned_integer (string + (length - 1) * width, | |
2780 | width, byte_order) == 0)) | |
2781 | length--; | |
2782 | ||
2783 | if (length == 0) | |
2784 | { | |
2785 | fputs_filtered ("\"\"", stream); | |
2786 | return; | |
2787 | } | |
2788 | ||
2789 | /* Arrange to iterate over the characters, in wchar_t form. */ | |
cda6c55b | 2790 | wchar_iterator iter (string, length * width, encoding, width); |
b01ba14d | 2791 | std::vector<converted_character> converted_chars; |
3b2b8fea | 2792 | |
0d63ecda KS |
2793 | /* Convert characters until the string is over or the maximum |
2794 | number of printed characters has been reached. */ | |
2795 | i = 0; | |
2796 | while (i < options->print_max) | |
3b2b8fea | 2797 | { |
0d63ecda | 2798 | int r; |
3b2b8fea TT |
2799 | |
2800 | QUIT; | |
2801 | ||
0d63ecda | 2802 | /* Grab the next character and repeat count. */ |
cda6c55b | 2803 | r = count_next_character (&iter, &converted_chars); |
3b2b8fea | 2804 | |
0d63ecda KS |
2805 | /* If less than zero, the end of the input string was reached. */ |
2806 | if (r < 0) | |
2807 | break; | |
3b2b8fea | 2808 | |
0d63ecda KS |
2809 | /* Otherwise, add the count to the total print count and get |
2810 | the next character. */ | |
2811 | i += r; | |
2812 | } | |
3b2b8fea | 2813 | |
0d63ecda KS |
2814 | /* Get the last element and determine if the entire string was |
2815 | processed. */ | |
b01ba14d | 2816 | last = &converted_chars.back (); |
0d63ecda | 2817 | finished = (last->result == wchar_iterate_eof); |
3b2b8fea | 2818 | |
0d63ecda KS |
2819 | /* Ensure that CONVERTED_CHARS is terminated. */ |
2820 | last->result = wchar_iterate_eof; | |
3b2b8fea | 2821 | |
0d63ecda KS |
2822 | /* WCHAR_BUF is the obstack we use to represent the string in |
2823 | wchar_t form. */ | |
8268c778 | 2824 | auto_obstack wchar_buf; |
3b2b8fea | 2825 | |
0d63ecda KS |
2826 | /* Print the output string to the obstack. */ |
2827 | print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char, | |
2828 | width, byte_order, options); | |
3b2b8fea TT |
2829 | |
2830 | if (force_ellipses || !finished) | |
2831 | obstack_grow_wstr (&wchar_buf, LCST ("...")); | |
2832 | ||
2833 | /* OUTPUT is where we collect `char's for printing. */ | |
8268c778 | 2834 | auto_obstack output; |
3b2b8fea TT |
2835 | |
2836 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2837 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2838 | obstack_object_size (&wchar_buf), |
fff10684 | 2839 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2840 | obstack_1grow (&output, '\0'); |
2841 | ||
79f33898 | 2842 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2843 | } |
2844 | ||
ae6a3a4c TJB |
2845 | /* Print a string from the inferior, starting at ADDR and printing up to LEN |
2846 | characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing | |
2847 | stops at the first null byte, otherwise printing proceeds (including null | |
2848 | bytes) until either print_max or LEN characters have been printed, | |
09ca9e2e TT |
2849 | whichever is smaller. ENCODING is the name of the string's |
2850 | encoding. It can be NULL, in which case the target encoding is | |
2851 | assumed. */ | |
ae6a3a4c TJB |
2852 | |
2853 | int | |
09ca9e2e TT |
2854 | val_print_string (struct type *elttype, const char *encoding, |
2855 | CORE_ADDR addr, int len, | |
6c7a06a3 | 2856 | struct ui_file *stream, |
ae6a3a4c TJB |
2857 | const struct value_print_options *options) |
2858 | { | |
2859 | int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ | |
d09f2c3f | 2860 | int err; /* Non-zero if we got a bad read. */ |
581e13c1 | 2861 | int found_nul; /* Non-zero if we found the nul char. */ |
ae6a3a4c TJB |
2862 | unsigned int fetchlimit; /* Maximum number of chars to print. */ |
2863 | int bytes_read; | |
b4be9fad | 2864 | gdb::unique_xmalloc_ptr<gdb_byte> buffer; /* Dynamically growable fetch buffer. */ |
5af949e3 | 2865 | struct gdbarch *gdbarch = get_type_arch (elttype); |
34877895 | 2866 | enum bfd_endian byte_order = type_byte_order (elttype); |
6c7a06a3 | 2867 | int width = TYPE_LENGTH (elttype); |
ae6a3a4c TJB |
2868 | |
2869 | /* First we need to figure out the limit on the number of characters we are | |
2870 | going to attempt to fetch and print. This is actually pretty simple. If | |
2871 | LEN >= zero, then the limit is the minimum of LEN and print_max. If | |
2872 | LEN is -1, then the limit is print_max. This is true regardless of | |
2873 | whether print_max is zero, UINT_MAX (unlimited), or something in between, | |
2874 | because finding the null byte (or available memory) is what actually | |
2875 | limits the fetch. */ | |
2876 | ||
325fac50 PA |
2877 | fetchlimit = (len == -1 ? options->print_max : std::min ((unsigned) len, |
2878 | options->print_max)); | |
ae6a3a4c | 2879 | |
d09f2c3f PA |
2880 | err = read_string (addr, len, width, fetchlimit, byte_order, |
2881 | &buffer, &bytes_read); | |
ae6a3a4c TJB |
2882 | |
2883 | addr += bytes_read; | |
c906108c | 2884 | |
3e43a32a MS |
2885 | /* We now have either successfully filled the buffer to fetchlimit, |
2886 | or terminated early due to an error or finding a null char when | |
2887 | LEN is -1. */ | |
ae6a3a4c TJB |
2888 | |
2889 | /* Determine found_nul by looking at the last character read. */ | |
6694c411 JK |
2890 | found_nul = 0; |
2891 | if (bytes_read >= width) | |
b4be9fad TT |
2892 | found_nul = extract_unsigned_integer (buffer.get () + bytes_read - width, |
2893 | width, byte_order) == 0; | |
c906108c SS |
2894 | if (len == -1 && !found_nul) |
2895 | { | |
777ea8f1 | 2896 | gdb_byte *peekbuf; |
c906108c | 2897 | |
ae6a3a4c | 2898 | /* We didn't find a NUL terminator we were looking for. Attempt |
c5aa993b JM |
2899 | to peek at the next character. If not successful, or it is not |
2900 | a null byte, then force ellipsis to be printed. */ | |
c906108c | 2901 | |
777ea8f1 | 2902 | peekbuf = (gdb_byte *) alloca (width); |
c906108c SS |
2903 | |
2904 | if (target_read_memory (addr, peekbuf, width) == 0 | |
e17a4113 | 2905 | && extract_unsigned_integer (peekbuf, width, byte_order) != 0) |
c906108c SS |
2906 | force_ellipsis = 1; |
2907 | } | |
d09f2c3f | 2908 | else if ((len >= 0 && err != 0) || (len > bytes_read / width)) |
c906108c SS |
2909 | { |
2910 | /* Getting an error when we have a requested length, or fetching less | |
c5aa993b | 2911 | than the number of characters actually requested, always make us |
ae6a3a4c | 2912 | print ellipsis. */ |
c906108c SS |
2913 | force_ellipsis = 1; |
2914 | } | |
2915 | ||
c906108c SS |
2916 | /* If we get an error before fetching anything, don't print a string. |
2917 | But if we fetch something and then get an error, print the string | |
2918 | and then the error message. */ | |
d09f2c3f | 2919 | if (err == 0 || bytes_read > 0) |
c906108c | 2920 | { |
b4be9fad | 2921 | LA_PRINT_STRING (stream, elttype, buffer.get (), bytes_read / width, |
3a772aa4 | 2922 | encoding, force_ellipsis, options); |
c906108c SS |
2923 | } |
2924 | ||
d09f2c3f | 2925 | if (err != 0) |
c906108c | 2926 | { |
1ccbe998 | 2927 | std::string str = memory_error_message (TARGET_XFER_E_IO, gdbarch, addr); |
578d3588 | 2928 | |
2dbc041e TT |
2929 | fprintf_filtered (stream, _("<error: %ps>"), |
2930 | styled_string (metadata_style.style (), | |
2931 | str.c_str ())); | |
c906108c | 2932 | } |
ae6a3a4c | 2933 | |
ae6a3a4c | 2934 | return (bytes_read / width); |
c906108c | 2935 | } |
2e62ab40 AB |
2936 | |
2937 | /* Handle 'show print max-depth'. */ | |
2938 | ||
2939 | static void | |
2940 | show_print_max_depth (struct ui_file *file, int from_tty, | |
2941 | struct cmd_list_element *c, const char *value) | |
2942 | { | |
2943 | fprintf_filtered (file, _("Maximum print depth is %s.\n"), value); | |
2944 | } | |
c906108c | 2945 | \f |
c5aa993b | 2946 | |
09e6485f PA |
2947 | /* The 'set input-radix' command writes to this auxiliary variable. |
2948 | If the requested radix is valid, INPUT_RADIX is updated; otherwise, | |
2949 | it is left unchanged. */ | |
2950 | ||
2951 | static unsigned input_radix_1 = 10; | |
2952 | ||
c906108c SS |
2953 | /* Validate an input or output radix setting, and make sure the user |
2954 | knows what they really did here. Radix setting is confusing, e.g. | |
2955 | setting the input radix to "10" never changes it! */ | |
2956 | ||
c906108c | 2957 | static void |
eb4c3f4a | 2958 | set_input_radix (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2959 | { |
09e6485f | 2960 | set_input_radix_1 (from_tty, input_radix_1); |
c906108c SS |
2961 | } |
2962 | ||
c906108c | 2963 | static void |
fba45db2 | 2964 | set_input_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
2965 | { |
2966 | /* We don't currently disallow any input radix except 0 or 1, which don't | |
2967 | make any mathematical sense. In theory, we can deal with any input | |
2968 | radix greater than 1, even if we don't have unique digits for every | |
2969 | value from 0 to radix-1, but in practice we lose on large radix values. | |
2970 | We should either fix the lossage or restrict the radix range more. | |
581e13c1 | 2971 | (FIXME). */ |
c906108c SS |
2972 | |
2973 | if (radix < 2) | |
2974 | { | |
09e6485f | 2975 | input_radix_1 = input_radix; |
8a3fe4f8 | 2976 | error (_("Nonsense input radix ``decimal %u''; input radix unchanged."), |
c906108c SS |
2977 | radix); |
2978 | } | |
09e6485f | 2979 | input_radix_1 = input_radix = radix; |
c906108c SS |
2980 | if (from_tty) |
2981 | { | |
3e43a32a MS |
2982 | printf_filtered (_("Input radix now set to " |
2983 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2984 | radix, radix, radix); |
2985 | } | |
2986 | } | |
2987 | ||
09e6485f PA |
2988 | /* The 'set output-radix' command writes to this auxiliary variable. |
2989 | If the requested radix is valid, OUTPUT_RADIX is updated, | |
2990 | otherwise, it is left unchanged. */ | |
2991 | ||
2992 | static unsigned output_radix_1 = 10; | |
2993 | ||
c906108c | 2994 | static void |
eb4c3f4a | 2995 | set_output_radix (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2996 | { |
09e6485f | 2997 | set_output_radix_1 (from_tty, output_radix_1); |
c906108c SS |
2998 | } |
2999 | ||
3000 | static void | |
fba45db2 | 3001 | set_output_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
3002 | { |
3003 | /* Validate the radix and disallow ones that we aren't prepared to | |
581e13c1 | 3004 | handle correctly, leaving the radix unchanged. */ |
c906108c SS |
3005 | switch (radix) |
3006 | { | |
3007 | case 16: | |
79a45b7d | 3008 | user_print_options.output_format = 'x'; /* hex */ |
c906108c SS |
3009 | break; |
3010 | case 10: | |
79a45b7d | 3011 | user_print_options.output_format = 0; /* decimal */ |
c906108c SS |
3012 | break; |
3013 | case 8: | |
79a45b7d | 3014 | user_print_options.output_format = 'o'; /* octal */ |
c906108c SS |
3015 | break; |
3016 | default: | |
09e6485f | 3017 | output_radix_1 = output_radix; |
3e43a32a MS |
3018 | error (_("Unsupported output radix ``decimal %u''; " |
3019 | "output radix unchanged."), | |
c906108c SS |
3020 | radix); |
3021 | } | |
09e6485f | 3022 | output_radix_1 = output_radix = radix; |
c906108c SS |
3023 | if (from_tty) |
3024 | { | |
3e43a32a MS |
3025 | printf_filtered (_("Output radix now set to " |
3026 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3027 | radix, radix, radix); |
3028 | } | |
3029 | } | |
3030 | ||
3031 | /* Set both the input and output radix at once. Try to set the output radix | |
3032 | first, since it has the most restrictive range. An radix that is valid as | |
3033 | an output radix is also valid as an input radix. | |
3034 | ||
3035 | It may be useful to have an unusual input radix. If the user wishes to | |
3036 | set an input radix that is not valid as an output radix, he needs to use | |
581e13c1 | 3037 | the 'set input-radix' command. */ |
c906108c SS |
3038 | |
3039 | static void | |
b0a8e6c4 | 3040 | set_radix (const char *arg, int from_tty) |
c906108c SS |
3041 | { |
3042 | unsigned radix; | |
3043 | ||
bb518678 | 3044 | radix = (arg == NULL) ? 10 : parse_and_eval_long (arg); |
c906108c SS |
3045 | set_output_radix_1 (0, radix); |
3046 | set_input_radix_1 (0, radix); | |
3047 | if (from_tty) | |
3048 | { | |
3e43a32a MS |
3049 | printf_filtered (_("Input and output radices now set to " |
3050 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3051 | radix, radix, radix); |
3052 | } | |
3053 | } | |
3054 | ||
581e13c1 | 3055 | /* Show both the input and output radices. */ |
c906108c | 3056 | |
c906108c | 3057 | static void |
b0a8e6c4 | 3058 | show_radix (const char *arg, int from_tty) |
c906108c SS |
3059 | { |
3060 | if (from_tty) | |
3061 | { | |
3062 | if (input_radix == output_radix) | |
3063 | { | |
3e43a32a MS |
3064 | printf_filtered (_("Input and output radices set to " |
3065 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3066 | input_radix, input_radix, input_radix); |
3067 | } | |
3068 | else | |
3069 | { | |
3e43a32a MS |
3070 | printf_filtered (_("Input radix set to decimal " |
3071 | "%u, hex %x, octal %o.\n"), | |
c906108c | 3072 | input_radix, input_radix, input_radix); |
3e43a32a MS |
3073 | printf_filtered (_("Output radix set to decimal " |
3074 | "%u, hex %x, octal %o.\n"), | |
c906108c SS |
3075 | output_radix, output_radix, output_radix); |
3076 | } | |
3077 | } | |
3078 | } | |
c906108c | 3079 | \f |
c5aa993b | 3080 | |
c906108c | 3081 | static void |
981a3fb3 | 3082 | set_print (const char *arg, int from_tty) |
c906108c SS |
3083 | { |
3084 | printf_unfiltered ( | |
c5aa993b | 3085 | "\"set print\" must be followed by the name of a print subcommand.\n"); |
635c7e8a | 3086 | help_list (setprintlist, "set print ", all_commands, gdb_stdout); |
c906108c SS |
3087 | } |
3088 | ||
c906108c | 3089 | static void |
981a3fb3 | 3090 | show_print (const char *args, int from_tty) |
c906108c SS |
3091 | { |
3092 | cmd_show_list (showprintlist, from_tty, ""); | |
3093 | } | |
e7045703 DE |
3094 | |
3095 | static void | |
981a3fb3 | 3096 | set_print_raw (const char *arg, int from_tty) |
e7045703 DE |
3097 | { |
3098 | printf_unfiltered ( | |
3099 | "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n"); | |
635c7e8a | 3100 | help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout); |
e7045703 DE |
3101 | } |
3102 | ||
3103 | static void | |
981a3fb3 | 3104 | show_print_raw (const char *args, int from_tty) |
e7045703 DE |
3105 | { |
3106 | cmd_show_list (showprintrawlist, from_tty, ""); | |
3107 | } | |
3108 | ||
7d8062de PA |
3109 | /* Controls printing of vtbl's. */ |
3110 | static void | |
3111 | show_vtblprint (struct ui_file *file, int from_tty, | |
3112 | struct cmd_list_element *c, const char *value) | |
3113 | { | |
3114 | fprintf_filtered (file, _("\ | |
3115 | Printing of C++ virtual function tables is %s.\n"), | |
3116 | value); | |
3117 | } | |
3118 | ||
3119 | /* Controls looking up an object's derived type using what we find in | |
3120 | its vtables. */ | |
3121 | static void | |
3122 | show_objectprint (struct ui_file *file, int from_tty, | |
3123 | struct cmd_list_element *c, | |
3124 | const char *value) | |
3125 | { | |
3126 | fprintf_filtered (file, _("\ | |
3127 | Printing of object's derived type based on vtable info is %s.\n"), | |
3128 | value); | |
3129 | } | |
3130 | ||
3131 | static void | |
3132 | show_static_field_print (struct ui_file *file, int from_tty, | |
3133 | struct cmd_list_element *c, | |
3134 | const char *value) | |
3135 | { | |
3136 | fprintf_filtered (file, | |
3137 | _("Printing of C++ static members is %s.\n"), | |
3138 | value); | |
3139 | } | |
3140 | ||
c906108c | 3141 | \f |
7d8062de PA |
3142 | |
3143 | /* A couple typedefs to make writing the options a bit more | |
3144 | convenient. */ | |
3145 | using boolean_option_def | |
3146 | = gdb::option::boolean_option_def<value_print_options>; | |
3147 | using uinteger_option_def | |
3148 | = gdb::option::uinteger_option_def<value_print_options>; | |
3149 | using zuinteger_unlimited_option_def | |
3150 | = gdb::option::zuinteger_unlimited_option_def<value_print_options>; | |
3151 | ||
85102364 | 3152 | /* Definitions of options for the "print" and "compile print" |
7d8062de PA |
3153 | commands. */ |
3154 | static const gdb::option::option_def value_print_option_defs[] = { | |
3155 | ||
3156 | boolean_option_def { | |
3157 | "address", | |
3158 | [] (value_print_options *opt) { return &opt->addressprint; }, | |
3159 | show_addressprint, /* show_cmd_cb */ | |
3160 | N_("Set printing of addresses."), | |
3161 | N_("Show printing of addresses."), | |
3162 | NULL, /* help_doc */ | |
3163 | }, | |
3164 | ||
3165 | boolean_option_def { | |
3166 | "array", | |
3167 | [] (value_print_options *opt) { return &opt->prettyformat_arrays; }, | |
3168 | show_prettyformat_arrays, /* show_cmd_cb */ | |
3169 | N_("Set pretty formatting of arrays."), | |
3170 | N_("Show pretty formatting of arrays."), | |
3171 | NULL, /* help_doc */ | |
3172 | }, | |
3173 | ||
3174 | boolean_option_def { | |
3175 | "array-indexes", | |
3176 | [] (value_print_options *opt) { return &opt->print_array_indexes; }, | |
3177 | show_print_array_indexes, /* show_cmd_cb */ | |
3178 | N_("Set printing of array indexes."), | |
590042fc | 3179 | N_("Show printing of array indexes."), |
7d8062de PA |
3180 | NULL, /* help_doc */ |
3181 | }, | |
3182 | ||
3183 | uinteger_option_def { | |
3184 | "elements", | |
3185 | [] (value_print_options *opt) { return &opt->print_max; }, | |
3186 | show_print_max, /* show_cmd_cb */ | |
3187 | N_("Set limit on string chars or array elements to print."), | |
3188 | N_("Show limit on string chars or array elements to print."), | |
3189 | N_("\"unlimited\" causes there to be no limit."), | |
3190 | }, | |
3191 | ||
3192 | zuinteger_unlimited_option_def { | |
3193 | "max-depth", | |
3194 | [] (value_print_options *opt) { return &opt->max_depth; }, | |
3195 | show_print_max_depth, /* show_cmd_cb */ | |
3196 | N_("Set maximum print depth for nested structures, unions and arrays."), | |
3197 | N_("Show maximum print depth for nested structures, unions, and arrays."), | |
3198 | N_("When structures, unions, or arrays are nested beyond this depth then they\n\ | |
3199 | will be replaced with either '{...}' or '(...)' depending on the language.\n\ | |
3200 | Use \"unlimited\" to print the complete structure.") | |
3201 | }, | |
3202 | ||
3203 | boolean_option_def { | |
3204 | "null-stop", | |
3205 | [] (value_print_options *opt) { return &opt->stop_print_at_null; }, | |
3206 | show_stop_print_at_null, /* show_cmd_cb */ | |
3207 | N_("Set printing of char arrays to stop at first null char."), | |
3208 | N_("Show printing of char arrays to stop at first null char."), | |
3209 | NULL, /* help_doc */ | |
3210 | }, | |
3211 | ||
3212 | boolean_option_def { | |
3213 | "object", | |
3214 | [] (value_print_options *opt) { return &opt->objectprint; }, | |
3215 | show_objectprint, /* show_cmd_cb */ | |
3216 | _("Set printing of C++ virtual function tables."), | |
3217 | _("Show printing of C++ virtual function tables."), | |
3218 | NULL, /* help_doc */ | |
3219 | }, | |
3220 | ||
3221 | boolean_option_def { | |
3222 | "pretty", | |
3223 | [] (value_print_options *opt) { return &opt->prettyformat_structs; }, | |
3224 | show_prettyformat_structs, /* show_cmd_cb */ | |
3225 | N_("Set pretty formatting of structures."), | |
3226 | N_("Show pretty formatting of structures."), | |
3227 | NULL, /* help_doc */ | |
3228 | }, | |
3229 | ||
d8edc8b7 PW |
3230 | boolean_option_def { |
3231 | "raw-values", | |
3232 | [] (value_print_options *opt) { return &opt->raw; }, | |
3233 | NULL, /* show_cmd_cb */ | |
3234 | N_("Set whether to print values in raw form."), | |
3235 | N_("Show whether to print values in raw form."), | |
3236 | N_("If set, values are printed in raw form, bypassing any\n\ | |
3237 | pretty-printers for that value.") | |
3238 | }, | |
3239 | ||
7d8062de PA |
3240 | uinteger_option_def { |
3241 | "repeats", | |
3242 | [] (value_print_options *opt) { return &opt->repeat_count_threshold; }, | |
3243 | show_repeat_count_threshold, /* show_cmd_cb */ | |
3244 | N_("Set threshold for repeated print elements."), | |
3245 | N_("Show threshold for repeated print elements."), | |
3246 | N_("\"unlimited\" causes all elements to be individually printed."), | |
3247 | }, | |
3248 | ||
3249 | boolean_option_def { | |
3250 | "static-members", | |
3251 | [] (value_print_options *opt) { return &opt->static_field_print; }, | |
3252 | show_static_field_print, /* show_cmd_cb */ | |
3253 | N_("Set printing of C++ static members."), | |
3254 | N_("Show printing of C++ static members."), | |
3255 | NULL, /* help_doc */ | |
3256 | }, | |
3257 | ||
3258 | boolean_option_def { | |
3259 | "symbol", | |
3260 | [] (value_print_options *opt) { return &opt->symbol_print; }, | |
3261 | show_symbol_print, /* show_cmd_cb */ | |
3262 | N_("Set printing of symbol names when printing pointers."), | |
3263 | N_("Show printing of symbol names when printing pointers."), | |
3264 | NULL, /* help_doc */ | |
3265 | }, | |
3266 | ||
3267 | boolean_option_def { | |
3268 | "union", | |
3269 | [] (value_print_options *opt) { return &opt->unionprint; }, | |
3270 | show_unionprint, /* show_cmd_cb */ | |
3271 | N_("Set printing of unions interior to structures."), | |
3272 | N_("Show printing of unions interior to structures."), | |
3273 | NULL, /* help_doc */ | |
3274 | }, | |
3275 | ||
3276 | boolean_option_def { | |
3277 | "vtbl", | |
3278 | [] (value_print_options *opt) { return &opt->vtblprint; }, | |
3279 | show_vtblprint, /* show_cmd_cb */ | |
3280 | N_("Set printing of C++ virtual function tables."), | |
3281 | N_("Show printing of C++ virtual function tables."), | |
3282 | NULL, /* help_doc */ | |
3283 | }, | |
3284 | }; | |
3285 | ||
3286 | /* See valprint.h. */ | |
3287 | ||
3288 | gdb::option::option_def_group | |
3289 | make_value_print_options_def_group (value_print_options *opts) | |
3290 | { | |
3291 | return {{value_print_option_defs}, opts}; | |
3292 | } | |
3293 | ||
6c265988 | 3294 | void _initialize_valprint (); |
c906108c | 3295 | void |
6c265988 | 3296 | _initialize_valprint () |
c906108c | 3297 | { |
2daf894e PA |
3298 | cmd_list_element *cmd; |
3299 | ||
c906108c | 3300 | add_prefix_cmd ("print", no_class, set_print, |
1bedd215 | 3301 | _("Generic command for setting how things print."), |
c906108c | 3302 | &setprintlist, "set print ", 0, &setlist); |
c5aa993b | 3303 | add_alias_cmd ("p", "print", no_class, 1, &setlist); |
581e13c1 | 3304 | /* Prefer set print to set prompt. */ |
c906108c SS |
3305 | add_alias_cmd ("pr", "print", no_class, 1, &setlist); |
3306 | ||
3307 | add_prefix_cmd ("print", no_class, show_print, | |
1bedd215 | 3308 | _("Generic command for showing print settings."), |
c906108c | 3309 | &showprintlist, "show print ", 0, &showlist); |
c5aa993b JM |
3310 | add_alias_cmd ("p", "print", no_class, 1, &showlist); |
3311 | add_alias_cmd ("pr", "print", no_class, 1, &showlist); | |
c906108c | 3312 | |
2daf894e PA |
3313 | cmd = add_prefix_cmd ("raw", no_class, set_print_raw, |
3314 | _("\ | |
e7045703 | 3315 | Generic command for setting what things to print in \"raw\" mode."), |
2daf894e PA |
3316 | &setprintrawlist, "set print raw ", 0, |
3317 | &setprintlist); | |
3318 | deprecate_cmd (cmd, nullptr); | |
3319 | ||
3320 | cmd = add_prefix_cmd ("raw", no_class, show_print_raw, | |
3321 | _("Generic command for showing \"print raw\" settings."), | |
3322 | &showprintrawlist, "show print raw ", 0, | |
3323 | &showprintlist); | |
3324 | deprecate_cmd (cmd, nullptr); | |
e7045703 | 3325 | |
7d8062de PA |
3326 | gdb::option::add_setshow_cmds_for_options |
3327 | (class_support, &user_print_options, value_print_option_defs, | |
3328 | &setprintlist, &showprintlist); | |
9cb709b6 | 3329 | |
1e8fb976 PA |
3330 | add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1, |
3331 | _("\ | |
35096d9d AC |
3332 | Set default input radix for entering numbers."), _("\ |
3333 | Show default input radix for entering numbers."), NULL, | |
1e8fb976 PA |
3334 | set_input_radix, |
3335 | show_input_radix, | |
3336 | &setlist, &showlist); | |
35096d9d | 3337 | |
1e8fb976 PA |
3338 | add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1, |
3339 | _("\ | |
35096d9d AC |
3340 | Set default output radix for printing of values."), _("\ |
3341 | Show default output radix for printing of values."), NULL, | |
1e8fb976 PA |
3342 | set_output_radix, |
3343 | show_output_radix, | |
3344 | &setlist, &showlist); | |
c906108c | 3345 | |
cb1a6d5f AC |
3346 | /* The "set radix" and "show radix" commands are special in that |
3347 | they are like normal set and show commands but allow two normally | |
3348 | independent variables to be either set or shown with a single | |
b66df561 | 3349 | command. So the usual deprecated_add_set_cmd() and [deleted] |
581e13c1 | 3350 | add_show_from_set() commands aren't really appropriate. */ |
b66df561 AC |
3351 | /* FIXME: i18n: With the new add_setshow_integer command, that is no |
3352 | longer true - show can display anything. */ | |
1a966eab AC |
3353 | add_cmd ("radix", class_support, set_radix, _("\ |
3354 | Set default input and output number radices.\n\ | |
c906108c | 3355 | Use 'set input-radix' or 'set output-radix' to independently set each.\n\ |
1a966eab | 3356 | Without an argument, sets both radices back to the default value of 10."), |
c906108c | 3357 | &setlist); |
1a966eab AC |
3358 | add_cmd ("radix", class_support, show_radix, _("\ |
3359 | Show the default input and output number radices.\n\ | |
3360 | Use 'show input-radix' or 'show output-radix' to independently show each."), | |
c906108c | 3361 | &showlist); |
c906108c | 3362 | } |